./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test6-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5e2f426-a57a-4666-aeaf-099abc5557cc/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5e2f426-a57a-4666-aeaf-099abc5557cc/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_a5e2f426-a57a-4666-aeaf-099abc5557cc/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5e2f426-a57a-4666-aeaf-099abc5557cc/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test6-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5e2f426-a57a-4666-aeaf-099abc5557cc/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5e2f426-a57a-4666-aeaf-099abc5557cc/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-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash bb48026e7f870ff561a4cdd394c24cb5edb1d0f2fc8e8ef2bffe0b7b8438fda4 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-29 07:08:25,541 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 07:08:25,605 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5e2f426-a57a-4666-aeaf-099abc5557cc/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2023-11-29 07:08:25,610 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-29 07:08:25,610 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-29 07:08:25,632 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 07:08:25,633 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-29 07:08:25,633 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-29 07:08:25,634 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-29 07:08:25,635 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-29 07:08:25,635 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-29 07:08:25,636 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-29 07:08:25,636 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 07:08:25,637 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 07:08:25,637 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 07:08:25,638 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 07:08:25,639 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-29 07:08:25,639 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-29 07:08:25,640 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-29 07:08:25,640 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 07:08:25,641 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-29 07:08:25,641 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-29 07:08:25,642 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-29 07:08:25,642 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-29 07:08:25,643 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-29 07:08:25,643 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-29 07:08:25,644 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-29 07:08:25,644 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 07:08:25,644 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 07:08:25,645 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 07:08:25,645 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-29 07:08:25,646 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-29 07:08:25,646 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 07:08:25,646 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 07:08:25,646 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-29 07:08:25,647 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-29 07:08:25,647 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-29 07:08:25,647 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-29 07:08:25,647 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-29 07:08:25,647 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-29 07:08:25,647 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-29 07:08:25,648 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_a5e2f426-a57a-4666-aeaf-099abc5557cc/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5e2f426-a57a-4666-aeaf-099abc5557cc/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bb48026e7f870ff561a4cdd394c24cb5edb1d0f2fc8e8ef2bffe0b7b8438fda4 [2023-11-29 07:08:25,848 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-29 07:08:25,870 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-29 07:08:25,873 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-29 07:08:25,874 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-29 07:08:25,874 INFO L274 PluginConnector]: CDTParser initialized [2023-11-29 07:08:25,876 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5e2f426-a57a-4666-aeaf-099abc5557cc/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test6-2.i [2023-11-29 07:08:28,703 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-29 07:08:28,980 INFO L384 CDTParser]: Found 1 translation units. [2023-11-29 07:08:28,981 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5e2f426-a57a-4666-aeaf-099abc5557cc/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test6-2.i [2023-11-29 07:08:29,001 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5e2f426-a57a-4666-aeaf-099abc5557cc/bin/uautomizer-verify-BQ2R08f2Ya/data/b02b574b5/ee2dc9dfcb2a47d49822b9969d72f87f/FLAG073d45d0f [2023-11-29 07:08:29,013 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5e2f426-a57a-4666-aeaf-099abc5557cc/bin/uautomizer-verify-BQ2R08f2Ya/data/b02b574b5/ee2dc9dfcb2a47d49822b9969d72f87f [2023-11-29 07:08:29,015 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-29 07:08:29,017 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-29 07:08:29,019 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-29 07:08:29,019 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-29 07:08:29,024 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-29 07:08:29,025 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 07:08:29" (1/1) ... [2023-11-29 07:08:29,026 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6cd46f92 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:08:29, skipping insertion in model container [2023-11-29 07:08:29,026 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 07:08:29" (1/1) ... [2023-11-29 07:08:29,095 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 07:08:29,792 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 07:08:29,806 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 07:08:29,806 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@4857ef9e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:08:29, skipping insertion in model container [2023-11-29 07:08:29,806 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-29 07:08:29,807 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2023-11-29 07:08:29,809 INFO L158 Benchmark]: Toolchain (without parser) took 790.75ms. Allocated memory is still 159.4MB. Free memory was 113.6MB in the beginning and 91.0MB in the end (delta: 22.7MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2023-11-29 07:08:29,809 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 104.9MB. Free memory is still 54.4MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-29 07:08:29,810 INFO L158 Benchmark]: CACSL2BoogieTranslator took 788.27ms. Allocated memory is still 159.4MB. Free memory was 113.2MB in the beginning and 91.0MB in the end (delta: 22.3MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2023-11-29 07:08:29,811 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 104.9MB. Free memory is still 54.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 788.27ms. Allocated memory is still 159.4MB. Free memory was 113.2MB in the beginning and 91.0MB in the end (delta: 22.3MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 990]: Unsupported Syntax Found a cast between two array/pointer types of different sizes while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5e2f426-a57a-4666-aeaf-099abc5557cc/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5e2f426-a57a-4666-aeaf-099abc5557cc/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_a5e2f426-a57a-4666-aeaf-099abc5557cc/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5e2f426-a57a-4666-aeaf-099abc5557cc/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test6-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5e2f426-a57a-4666-aeaf-099abc5557cc/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5e2f426-a57a-4666-aeaf-099abc5557cc/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-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash bb48026e7f870ff561a4cdd394c24cb5edb1d0f2fc8e8ef2bffe0b7b8438fda4 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-29 07:08:31,599 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 07:08:31,666 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5e2f426-a57a-4666-aeaf-099abc5557cc/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2023-11-29 07:08:31,683 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-29 07:08:31,684 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-29 07:08:31,712 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 07:08:31,713 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-29 07:08:31,713 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-29 07:08:31,714 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-29 07:08:31,715 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-29 07:08:31,715 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-29 07:08:31,716 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-29 07:08:31,717 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 07:08:31,717 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 07:08:31,718 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 07:08:31,718 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 07:08:31,719 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-29 07:08:31,719 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-29 07:08:31,720 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-29 07:08:31,721 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 07:08:31,721 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-29 07:08:31,722 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-29 07:08:31,722 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-29 07:08:31,723 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-29 07:08:31,723 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-29 07:08:31,723 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-29 07:08:31,724 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-29 07:08:31,724 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-29 07:08:31,725 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-29 07:08:31,725 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 07:08:31,726 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 07:08:31,726 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 07:08:31,726 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-29 07:08:31,727 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-29 07:08:31,727 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 07:08:31,727 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 07:08:31,727 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-29 07:08:31,728 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-11-29 07:08:31,728 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-29 07:08:31,728 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-29 07:08:31,728 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-29 07:08:31,729 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-29 07:08:31,729 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-29 07:08:31,729 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-11-29 07:08:31,729 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_a5e2f426-a57a-4666-aeaf-099abc5557cc/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5e2f426-a57a-4666-aeaf-099abc5557cc/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bb48026e7f870ff561a4cdd394c24cb5edb1d0f2fc8e8ef2bffe0b7b8438fda4 [2023-11-29 07:08:31,994 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-29 07:08:32,013 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-29 07:08:32,016 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-29 07:08:32,017 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-29 07:08:32,017 INFO L274 PluginConnector]: CDTParser initialized [2023-11-29 07:08:32,019 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5e2f426-a57a-4666-aeaf-099abc5557cc/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test6-2.i [2023-11-29 07:08:34,845 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-29 07:08:35,139 INFO L384 CDTParser]: Found 1 translation units. [2023-11-29 07:08:35,140 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5e2f426-a57a-4666-aeaf-099abc5557cc/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test6-2.i [2023-11-29 07:08:35,161 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5e2f426-a57a-4666-aeaf-099abc5557cc/bin/uautomizer-verify-BQ2R08f2Ya/data/88371761f/1ca28d7027be436aa6e2dd05c6b78ae6/FLAG30f8d83f0 [2023-11-29 07:08:35,180 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5e2f426-a57a-4666-aeaf-099abc5557cc/bin/uautomizer-verify-BQ2R08f2Ya/data/88371761f/1ca28d7027be436aa6e2dd05c6b78ae6 [2023-11-29 07:08:35,183 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-29 07:08:35,184 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-29 07:08:35,186 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-29 07:08:35,186 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-29 07:08:35,191 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-29 07:08:35,192 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 07:08:35" (1/1) ... [2023-11-29 07:08:35,193 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1d7e1c46 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:08:35, skipping insertion in model container [2023-11-29 07:08:35,193 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 07:08:35" (1/1) ... [2023-11-29 07:08:35,280 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 07:08:35,950 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 07:08:35,966 INFO L199 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2023-11-29 07:08:35,981 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 07:08:36,072 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 07:08:36,080 INFO L202 MainTranslator]: Completed pre-run [2023-11-29 07:08:36,151 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 07:08:36,220 WARN L675 CHandler]: The function memcmp is called, but not defined or handled by StandardFunctionHandler. [2023-11-29 07:08:36,227 INFO L206 MainTranslator]: Completed translation [2023-11-29 07:08:36,228 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:08:36 WrapperNode [2023-11-29 07:08:36,228 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-29 07:08:36,229 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-29 07:08:36,229 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-29 07:08:36,229 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-29 07:08:36,236 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:08:36" (1/1) ... [2023-11-29 07:08:36,277 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:08:36" (1/1) ... [2023-11-29 07:08:36,337 INFO L138 Inliner]: procedures = 285, calls = 351, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 1213 [2023-11-29 07:08:36,337 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-29 07:08:36,338 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-29 07:08:36,338 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-29 07:08:36,338 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-29 07:08:36,350 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:08:36" (1/1) ... [2023-11-29 07:08:36,351 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:08:36" (1/1) ... [2023-11-29 07:08:36,367 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:08:36" (1/1) ... [2023-11-29 07:08:36,494 INFO L175 MemorySlicer]: Split 314 memory accesses to 5 slices as follows [2, 3, 5, 270, 34]. 86 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0, 0, 0]. The 64 writes are split as follows [0, 2, 1, 57, 4]. [2023-11-29 07:08:36,494 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:08:36" (1/1) ... [2023-11-29 07:08:36,495 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:08:36" (1/1) ... [2023-11-29 07:08:36,547 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:08:36" (1/1) ... [2023-11-29 07:08:36,558 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:08:36" (1/1) ... [2023-11-29 07:08:36,566 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:08:36" (1/1) ... [2023-11-29 07:08:36,574 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:08:36" (1/1) ... [2023-11-29 07:08:36,585 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-29 07:08:36,587 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-29 07:08:36,587 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-29 07:08:36,587 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-29 07:08:36,588 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:08:36" (1/1) ... [2023-11-29 07:08:36,594 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 07:08:36,605 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5e2f426-a57a-4666-aeaf-099abc5557cc/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 07:08:36,619 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5e2f426-a57a-4666-aeaf-099abc5557cc/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-29 07:08:36,622 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5e2f426-a57a-4666-aeaf-099abc5557cc/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-29 07:08:36,652 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-11-29 07:08:36,652 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-11-29 07:08:36,652 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#0 [2023-11-29 07:08:36,652 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#1 [2023-11-29 07:08:36,653 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#2 [2023-11-29 07:08:36,653 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#3 [2023-11-29 07:08:36,653 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#4 [2023-11-29 07:08:36,653 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2023-11-29 07:08:36,653 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2023-11-29 07:08:36,653 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2023-11-29 07:08:36,653 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#3 [2023-11-29 07:08:36,654 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#4 [2023-11-29 07:08:36,654 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-29 07:08:36,654 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2023-11-29 07:08:36,654 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2023-11-29 07:08:36,654 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2023-11-29 07:08:36,654 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2023-11-29 07:08:36,654 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2023-11-29 07:08:36,655 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2023-11-29 07:08:36,655 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-29 07:08:36,655 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2023-11-29 07:08:36,655 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2023-11-29 07:08:36,655 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2023-11-29 07:08:36,655 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#3 [2023-11-29 07:08:36,655 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#4 [2023-11-29 07:08:36,656 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-11-29 07:08:36,656 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2023-11-29 07:08:36,656 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2023-11-29 07:08:36,656 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#3 [2023-11-29 07:08:36,656 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#4 [2023-11-29 07:08:36,656 INFO L130 BoogieDeclarations]: Found specification of procedure alt_bzero [2023-11-29 07:08:36,656 INFO L138 BoogieDeclarations]: Found implementation of procedure alt_bzero [2023-11-29 07:08:36,656 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-29 07:08:36,657 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-29 07:08:36,657 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-29 07:08:36,657 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-29 07:08:36,657 INFO L130 BoogieDeclarations]: Found specification of procedure alt_malloc [2023-11-29 07:08:36,657 INFO L138 BoogieDeclarations]: Found implementation of procedure alt_malloc [2023-11-29 07:08:36,657 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2023-11-29 07:08:36,657 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2023-11-29 07:08:36,657 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2023-11-29 07:08:36,657 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2023-11-29 07:08:36,657 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2023-11-29 07:08:36,658 INFO L130 BoogieDeclarations]: Found specification of procedure alt_free [2023-11-29 07:08:36,658 INFO L138 BoogieDeclarations]: Found implementation of procedure alt_free [2023-11-29 07:08:36,658 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-29 07:08:36,658 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-29 07:08:36,907 INFO L241 CfgBuilder]: Building ICFG [2023-11-29 07:08:36,910 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-29 07:08:42,265 INFO L282 CfgBuilder]: Performing block encoding [2023-11-29 07:08:42,449 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-29 07:08:42,450 INFO L309 CfgBuilder]: Removed 72 assume(true) statements. [2023-11-29 07:08:42,451 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 07:08:42 BoogieIcfgContainer [2023-11-29 07:08:42,451 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-29 07:08:42,453 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-29 07:08:42,453 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-29 07:08:42,456 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-29 07:08:42,456 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 07:08:35" (1/3) ... [2023-11-29 07:08:42,457 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@67487eda and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 07:08:42, skipping insertion in model container [2023-11-29 07:08:42,457 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:08:36" (2/3) ... [2023-11-29 07:08:42,457 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@67487eda and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 07:08:42, skipping insertion in model container [2023-11-29 07:08:42,457 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 07:08:42" (3/3) ... [2023-11-29 07:08:42,459 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_SAX_test6-2.i [2023-11-29 07:08:42,475 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-29 07:08:42,476 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 631 error locations. [2023-11-29 07:08:42,532 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-29 07:08:42,538 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;@78410643, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-29 07:08:42,538 INFO L358 AbstractCegarLoop]: Starting to check reachability of 631 error locations. [2023-11-29 07:08:42,545 INFO L276 IsEmpty]: Start isEmpty. Operand has 1163 states, 507 states have (on average 2.5305719921104535) internal successors, (1283), 1141 states have internal predecessors, (1283), 20 states have call successors, (20), 5 states have call predecessors, (20), 5 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2023-11-29 07:08:42,551 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2023-11-29 07:08:42,552 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:08:42,552 INFO L195 NwaCegarLoop]: trace histogram [1, 1] [2023-11-29 07:08:42,553 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, alt_mallocErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, alt_mallocErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 628 more)] === [2023-11-29 07:08:42,557 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:08:42,558 INFO L85 PathProgramCache]: Analyzing trace with hash 64540, now seen corresponding path program 1 times [2023-11-29 07:08:42,568 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 07:08:42,569 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2063620843] [2023-11-29 07:08:42,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:08:42,569 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 07:08:42,570 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5e2f426-a57a-4666-aeaf-099abc5557cc/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 07:08:42,572 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5e2f426-a57a-4666-aeaf-099abc5557cc/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 07:08:42,575 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5e2f426-a57a-4666-aeaf-099abc5557cc/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 07:08:42,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:08:42,775 INFO L262 TraceCheckSpWp]: Trace formula consists of 32 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 07:08:42,782 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:08:42,846 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2023-11-29 07:08:42,863 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 07:08:42,864 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 07:08:42,865 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 07:08:42,865 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2063620843] [2023-11-29 07:08:42,866 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2063620843] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 07:08:42,866 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 07:08:42,866 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-29 07:08:42,868 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [939243009] [2023-11-29 07:08:42,868 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 07:08:42,873 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 07:08:42,873 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 07:08:42,898 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 07:08:42,898 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 07:08:42,902 INFO L87 Difference]: Start difference. First operand has 1163 states, 507 states have (on average 2.5305719921104535) internal successors, (1283), 1141 states have internal predecessors, (1283), 20 states have call successors, (20), 5 states have call predecessors, (20), 5 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) Second operand has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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 07:08:45,587 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:08:45,587 INFO L93 Difference]: Finished difference Result 1400 states and 1492 transitions. [2023-11-29 07:08:45,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 07:08:45,590 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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 2 [2023-11-29 07:08:45,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:08:45,608 INFO L225 Difference]: With dead ends: 1400 [2023-11-29 07:08:45,608 INFO L226 Difference]: Without dead ends: 1399 [2023-11-29 07:08:45,609 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 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 07:08:45,612 INFO L413 NwaCegarLoop]: 757 mSDtfsCounter, 828 mSDsluCounter, 287 mSDsCounter, 0 mSdLazyCounter, 829 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 831 SdHoareTripleChecker+Valid, 1044 SdHoareTripleChecker+Invalid, 842 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 829 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2023-11-29 07:08:45,612 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [831 Valid, 1044 Invalid, 842 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 829 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2023-11-29 07:08:45,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1399 states. [2023-11-29 07:08:45,689 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1399 to 1176. [2023-11-29 07:08:45,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1176 states, 535 states have (on average 2.3626168224299064) internal successors, (1264), 1156 states have internal predecessors, (1264), 19 states have call successors, (19), 5 states have call predecessors, (19), 4 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2023-11-29 07:08:45,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1176 states to 1176 states and 1298 transitions. [2023-11-29 07:08:45,701 INFO L78 Accepts]: Start accepts. Automaton has 1176 states and 1298 transitions. Word has length 2 [2023-11-29 07:08:45,701 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:08:45,701 INFO L495 AbstractCegarLoop]: Abstraction has 1176 states and 1298 transitions. [2023-11-29 07:08:45,702 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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 07:08:45,702 INFO L276 IsEmpty]: Start isEmpty. Operand 1176 states and 1298 transitions. [2023-11-29 07:08:45,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2023-11-29 07:08:45,702 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:08:45,702 INFO L195 NwaCegarLoop]: trace histogram [1, 1] [2023-11-29 07:08:45,710 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5e2f426-a57a-4666-aeaf-099abc5557cc/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 07:08:45,905 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5e2f426-a57a-4666-aeaf-099abc5557cc/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 07:08:45,905 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, alt_mallocErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, alt_mallocErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 628 more)] === [2023-11-29 07:08:45,906 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:08:45,906 INFO L85 PathProgramCache]: Analyzing trace with hash 64541, now seen corresponding path program 1 times [2023-11-29 07:08:45,906 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 07:08:45,907 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [210440051] [2023-11-29 07:08:45,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:08:45,907 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 07:08:45,907 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5e2f426-a57a-4666-aeaf-099abc5557cc/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 07:08:45,908 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5e2f426-a57a-4666-aeaf-099abc5557cc/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 07:08:45,914 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5e2f426-a57a-4666-aeaf-099abc5557cc/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 07:08:46,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:08:46,062 INFO L262 TraceCheckSpWp]: Trace formula consists of 32 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 07:08:46,065 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:08:46,093 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-11-29 07:08:46,108 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 07:08:46,108 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 07:08:46,108 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 07:08:46,108 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [210440051] [2023-11-29 07:08:46,108 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [210440051] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 07:08:46,109 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 07:08:46,109 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-29 07:08:46,109 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1610976453] [2023-11-29 07:08:46,109 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 07:08:46,110 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 07:08:46,111 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 07:08:46,111 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 07:08:46,111 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 07:08:46,111 INFO L87 Difference]: Start difference. First operand 1176 states and 1298 transitions. Second operand has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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 07:08:50,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:08:50,046 INFO L93 Difference]: Finished difference Result 1715 states and 1886 transitions. [2023-11-29 07:08:50,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 07:08:50,047 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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 2 [2023-11-29 07:08:50,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:08:50,057 INFO L225 Difference]: With dead ends: 1715 [2023-11-29 07:08:50,057 INFO L226 Difference]: Without dead ends: 1715 [2023-11-29 07:08:50,057 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 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 07:08:50,059 INFO L413 NwaCegarLoop]: 865 mSDtfsCounter, 572 mSDsluCounter, 584 mSDsCounter, 0 mSdLazyCounter, 989 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 579 SdHoareTripleChecker+Valid, 1449 SdHoareTripleChecker+Invalid, 994 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 989 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2023-11-29 07:08:50,060 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [579 Valid, 1449 Invalid, 994 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 989 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2023-11-29 07:08:50,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1715 states. [2023-11-29 07:08:50,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1715 to 1346. [2023-11-29 07:08:50,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1346 states, 704 states have (on average 2.3323863636363638) internal successors, (1642), 1324 states have internal predecessors, (1642), 21 states have call successors, (21), 5 states have call predecessors, (21), 4 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2023-11-29 07:08:50,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1346 states to 1346 states and 1680 transitions. [2023-11-29 07:08:50,102 INFO L78 Accepts]: Start accepts. Automaton has 1346 states and 1680 transitions. Word has length 2 [2023-11-29 07:08:50,102 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:08:50,103 INFO L495 AbstractCegarLoop]: Abstraction has 1346 states and 1680 transitions. [2023-11-29 07:08:50,103 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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 07:08:50,103 INFO L276 IsEmpty]: Start isEmpty. Operand 1346 states and 1680 transitions. [2023-11-29 07:08:50,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-29 07:08:50,104 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:08:50,104 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2023-11-29 07:08:50,106 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5e2f426-a57a-4666-aeaf-099abc5557cc/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 07:08:50,306 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5e2f426-a57a-4666-aeaf-099abc5557cc/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 07:08:50,306 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, alt_mallocErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, alt_mallocErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 628 more)] === [2023-11-29 07:08:50,307 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:08:50,307 INFO L85 PathProgramCache]: Analyzing trace with hash -522425799, now seen corresponding path program 1 times [2023-11-29 07:08:50,307 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 07:08:50,307 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1422964971] [2023-11-29 07:08:50,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:08:50,308 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 07:08:50,308 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5e2f426-a57a-4666-aeaf-099abc5557cc/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 07:08:50,309 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5e2f426-a57a-4666-aeaf-099abc5557cc/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 07:08:50,310 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5e2f426-a57a-4666-aeaf-099abc5557cc/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 07:08:50,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:08:50,447 INFO L262 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-29 07:08:50,450 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:08:50,461 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2023-11-29 07:08:50,468 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-11-29 07:08:50,535 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-29 07:08:50,537 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 9 [2023-11-29 07:08:50,558 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2023-11-29 07:08:50,559 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13 [2023-11-29 07:08:50,580 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 07:08:50,580 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 07:08:50,581 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 07:08:50,581 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1422964971] [2023-11-29 07:08:50,581 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1422964971] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 07:08:50,581 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 07:08:50,581 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 07:08:50,582 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2105415787] [2023-11-29 07:08:50,582 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 07:08:50,582 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 07:08:50,582 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 07:08:50,583 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 07:08:50,583 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 07:08:50,583 INFO L87 Difference]: Start difference. First operand 1346 states and 1680 transitions. Second operand has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 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 07:08:56,224 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:08:56,224 INFO L93 Difference]: Finished difference Result 2319 states and 2733 transitions. [2023-11-29 07:08:56,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 07:08:56,225 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 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 6 [2023-11-29 07:08:56,225 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:08:56,235 INFO L225 Difference]: With dead ends: 2319 [2023-11-29 07:08:56,235 INFO L226 Difference]: Without dead ends: 2319 [2023-11-29 07:08:56,235 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 07:08:56,236 INFO L413 NwaCegarLoop]: 559 mSDtfsCounter, 1832 mSDsluCounter, 623 mSDsCounter, 0 mSdLazyCounter, 1458 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1838 SdHoareTripleChecker+Valid, 1182 SdHoareTripleChecker+Invalid, 1476 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 1458 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2023-11-29 07:08:56,237 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1838 Valid, 1182 Invalid, 1476 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 1458 Invalid, 0 Unknown, 0 Unchecked, 5.5s Time] [2023-11-29 07:08:56,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2319 states. [2023-11-29 07:08:56,267 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2319 to 1462. [2023-11-29 07:08:56,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1462 states, 820 states have (on average 2.3121951219512193) internal successors, (1896), 1440 states have internal predecessors, (1896), 21 states have call successors, (21), 5 states have call predecessors, (21), 4 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2023-11-29 07:08:56,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1462 states to 1462 states and 1934 transitions. [2023-11-29 07:08:56,274 INFO L78 Accepts]: Start accepts. Automaton has 1462 states and 1934 transitions. Word has length 6 [2023-11-29 07:08:56,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:08:56,275 INFO L495 AbstractCegarLoop]: Abstraction has 1462 states and 1934 transitions. [2023-11-29 07:08:56,275 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 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 07:08:56,275 INFO L276 IsEmpty]: Start isEmpty. Operand 1462 states and 1934 transitions. [2023-11-29 07:08:56,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-29 07:08:56,275 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:08:56,275 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-29 07:08:56,278 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5e2f426-a57a-4666-aeaf-099abc5557cc/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 07:08:56,476 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5e2f426-a57a-4666-aeaf-099abc5557cc/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 07:08:56,476 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, alt_mallocErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, alt_mallocErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 628 more)] === [2023-11-29 07:08:56,476 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:08:56,477 INFO L85 PathProgramCache]: Analyzing trace with hash 984669438, now seen corresponding path program 1 times [2023-11-29 07:08:56,477 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 07:08:56,477 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1528648476] [2023-11-29 07:08:56,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:08:56,477 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 07:08:56,477 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5e2f426-a57a-4666-aeaf-099abc5557cc/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 07:08:56,478 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5e2f426-a57a-4666-aeaf-099abc5557cc/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 07:08:56,479 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5e2f426-a57a-4666-aeaf-099abc5557cc/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 07:08:56,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:08:56,628 INFO L262 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 07:08:56,631 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:08:56,637 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2023-11-29 07:08:56,649 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 07:08:56,650 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 07:08:56,650 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 07:08:56,650 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1528648476] [2023-11-29 07:08:56,650 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1528648476] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 07:08:56,650 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 07:08:56,651 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 07:08:56,651 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [216159538] [2023-11-29 07:08:56,651 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 07:08:56,651 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 07:08:56,652 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 07:08:56,652 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 07:08:56,652 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 07:08:56,652 INFO L87 Difference]: Start difference. First operand 1462 states and 1934 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 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 07:08:59,085 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:08:59,085 INFO L93 Difference]: Finished difference Result 1941 states and 2638 transitions. [2023-11-29 07:08:59,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 07:08:59,086 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 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 7 [2023-11-29 07:08:59,087 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:08:59,095 INFO L225 Difference]: With dead ends: 1941 [2023-11-29 07:08:59,096 INFO L226 Difference]: Without dead ends: 1941 [2023-11-29 07:08:59,096 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 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 07:08:59,097 INFO L413 NwaCegarLoop]: 997 mSDtfsCounter, 869 mSDsluCounter, 338 mSDsCounter, 0 mSdLazyCounter, 899 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 872 SdHoareTripleChecker+Valid, 1335 SdHoareTripleChecker+Invalid, 948 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 899 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2023-11-29 07:08:59,097 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [872 Valid, 1335 Invalid, 948 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 899 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2023-11-29 07:08:59,109 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1941 states. [2023-11-29 07:08:59,134 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1941 to 1417. [2023-11-29 07:08:59,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1417 states, 820 states have (on average 2.2402439024390244) internal successors, (1837), 1395 states have internal predecessors, (1837), 21 states have call successors, (21), 5 states have call predecessors, (21), 4 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2023-11-29 07:08:59,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1417 states to 1417 states and 1875 transitions. [2023-11-29 07:08:59,143 INFO L78 Accepts]: Start accepts. Automaton has 1417 states and 1875 transitions. Word has length 7 [2023-11-29 07:08:59,144 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:08:59,144 INFO L495 AbstractCegarLoop]: Abstraction has 1417 states and 1875 transitions. [2023-11-29 07:08:59,144 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 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 07:08:59,144 INFO L276 IsEmpty]: Start isEmpty. Operand 1417 states and 1875 transitions. [2023-11-29 07:08:59,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-29 07:08:59,145 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:08:59,145 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-29 07:08:59,148 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5e2f426-a57a-4666-aeaf-099abc5557cc/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 07:08:59,348 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5e2f426-a57a-4666-aeaf-099abc5557cc/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 07:08:59,348 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, alt_mallocErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, alt_mallocErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 628 more)] === [2023-11-29 07:08:59,349 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:08:59,349 INFO L85 PathProgramCache]: Analyzing trace with hash 984669439, now seen corresponding path program 1 times [2023-11-29 07:08:59,349 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 07:08:59,350 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [540685844] [2023-11-29 07:08:59,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:08:59,350 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 07:08:59,350 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5e2f426-a57a-4666-aeaf-099abc5557cc/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 07:08:59,351 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5e2f426-a57a-4666-aeaf-099abc5557cc/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 07:08:59,352 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5e2f426-a57a-4666-aeaf-099abc5557cc/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 07:08:59,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:08:59,520 INFO L262 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-29 07:08:59,523 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:08:59,535 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-11-29 07:08:59,560 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 07:08:59,561 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 07:08:59,561 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 07:08:59,561 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [540685844] [2023-11-29 07:08:59,561 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [540685844] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 07:08:59,561 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 07:08:59,562 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 07:08:59,562 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2083876098] [2023-11-29 07:08:59,562 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 07:08:59,562 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 07:08:59,563 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 07:08:59,563 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 07:08:59,563 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 07:08:59,564 INFO L87 Difference]: Start difference. First operand 1417 states and 1875 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 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 07:09:03,305 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:09:03,305 INFO L93 Difference]: Finished difference Result 1974 states and 2627 transitions. [2023-11-29 07:09:03,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 07:09:03,307 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 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 7 [2023-11-29 07:09:03,307 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:09:03,315 INFO L225 Difference]: With dead ends: 1974 [2023-11-29 07:09:03,316 INFO L226 Difference]: Without dead ends: 1974 [2023-11-29 07:09:03,316 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 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 07:09:03,317 INFO L413 NwaCegarLoop]: 1151 mSDtfsCounter, 620 mSDsluCounter, 449 mSDsCounter, 0 mSdLazyCounter, 959 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 622 SdHoareTripleChecker+Valid, 1600 SdHoareTripleChecker+Invalid, 971 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 959 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2023-11-29 07:09:03,317 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [622 Valid, 1600 Invalid, 971 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 959 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2023-11-29 07:09:03,321 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1974 states. [2023-11-29 07:09:03,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1974 to 1407. [2023-11-29 07:09:03,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1407 states, 820 states have (on average 2.2109756097560975) internal successors, (1813), 1385 states have internal predecessors, (1813), 21 states have call successors, (21), 5 states have call predecessors, (21), 4 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2023-11-29 07:09:03,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1407 states to 1407 states and 1851 transitions. [2023-11-29 07:09:03,356 INFO L78 Accepts]: Start accepts. Automaton has 1407 states and 1851 transitions. Word has length 7 [2023-11-29 07:09:03,356 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:09:03,356 INFO L495 AbstractCegarLoop]: Abstraction has 1407 states and 1851 transitions. [2023-11-29 07:09:03,356 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 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 07:09:03,356 INFO L276 IsEmpty]: Start isEmpty. Operand 1407 states and 1851 transitions. [2023-11-29 07:09:03,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-11-29 07:09:03,357 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:09:03,357 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 07:09:03,360 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5e2f426-a57a-4666-aeaf-099abc5557cc/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Ended with exit code 0 [2023-11-29 07:09:03,557 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5e2f426-a57a-4666-aeaf-099abc5557cc/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 07:09:03,558 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, alt_mallocErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, alt_mallocErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 628 more)] === [2023-11-29 07:09:03,558 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:09:03,558 INFO L85 PathProgramCache]: Analyzing trace with hash -320660464, now seen corresponding path program 1 times [2023-11-29 07:09:03,558 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 07:09:03,558 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [991741801] [2023-11-29 07:09:03,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:09:03,559 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 07:09:03,559 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5e2f426-a57a-4666-aeaf-099abc5557cc/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 07:09:03,560 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5e2f426-a57a-4666-aeaf-099abc5557cc/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 07:09:03,561 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5e2f426-a57a-4666-aeaf-099abc5557cc/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 07:09:03,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:09:03,688 INFO L262 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 07:09:03,689 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:09:03,745 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 07:09:03,745 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 07:09:03,746 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 07:09:03,746 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [991741801] [2023-11-29 07:09:03,746 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [991741801] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 07:09:03,746 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 07:09:03,746 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 07:09:03,746 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1286009338] [2023-11-29 07:09:03,746 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 07:09:03,747 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 07:09:03,747 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 07:09:03,747 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 07:09:03,747 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 07:09:03,747 INFO L87 Difference]: Start difference. First operand 1407 states and 1851 transitions. Second operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 07:09:06,209 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:09:06,209 INFO L93 Difference]: Finished difference Result 2018 states and 2566 transitions. [2023-11-29 07:09:06,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 07:09:06,211 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2023-11-29 07:09:06,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:09:06,220 INFO L225 Difference]: With dead ends: 2018 [2023-11-29 07:09:06,220 INFO L226 Difference]: Without dead ends: 2018 [2023-11-29 07:09:06,220 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 9 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 07:09:06,221 INFO L413 NwaCegarLoop]: 1156 mSDtfsCounter, 682 mSDsluCounter, 1919 mSDsCounter, 0 mSdLazyCounter, 773 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 693 SdHoareTripleChecker+Valid, 3075 SdHoareTripleChecker+Invalid, 794 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 773 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2023-11-29 07:09:06,221 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [693 Valid, 3075 Invalid, 794 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 773 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2023-11-29 07:09:06,223 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2018 states. [2023-11-29 07:09:06,247 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2018 to 1624. [2023-11-29 07:09:06,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1624 states, 1034 states have (on average 2.2088974854932304) internal successors, (2284), 1599 states have internal predecessors, (2284), 24 states have call successors, (24), 5 states have call predecessors, (24), 4 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2023-11-29 07:09:06,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1624 states to 1624 states and 2328 transitions. [2023-11-29 07:09:06,257 INFO L78 Accepts]: Start accepts. Automaton has 1624 states and 2328 transitions. Word has length 12 [2023-11-29 07:09:06,258 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:09:06,258 INFO L495 AbstractCegarLoop]: Abstraction has 1624 states and 2328 transitions. [2023-11-29 07:09:06,258 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 07:09:06,258 INFO L276 IsEmpty]: Start isEmpty. Operand 1624 states and 2328 transitions. [2023-11-29 07:09:06,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-11-29 07:09:06,259 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:09:06,259 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 07:09:06,261 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5e2f426-a57a-4666-aeaf-099abc5557cc/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 07:09:06,459 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5e2f426-a57a-4666-aeaf-099abc5557cc/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 07:09:06,460 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr332REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, alt_mallocErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, alt_mallocErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 628 more)] === [2023-11-29 07:09:06,460 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:09:06,460 INFO L85 PathProgramCache]: Analyzing trace with hash -909869265, now seen corresponding path program 1 times [2023-11-29 07:09:06,460 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 07:09:06,460 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [987217864] [2023-11-29 07:09:06,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:09:06,461 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 07:09:06,461 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5e2f426-a57a-4666-aeaf-099abc5557cc/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 07:09:06,462 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5e2f426-a57a-4666-aeaf-099abc5557cc/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 07:09:06,463 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5e2f426-a57a-4666-aeaf-099abc5557cc/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 07:09:06,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:09:06,652 INFO L262 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-29 07:09:06,654 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:09:06,663 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 07:09:06,663 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 07:09:06,663 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 07:09:06,663 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [987217864] [2023-11-29 07:09:06,664 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [987217864] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 07:09:06,664 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 07:09:06,664 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 07:09:06,664 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1262396247] [2023-11-29 07:09:06,668 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 07:09:06,668 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 07:09:06,668 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 07:09:06,669 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 07:09:06,669 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 07:09:06,669 INFO L87 Difference]: Start difference. First operand 1624 states and 2328 transitions. Second operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 07:09:07,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:09:07,583 INFO L93 Difference]: Finished difference Result 1540 states and 2168 transitions. [2023-11-29 07:09:07,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 07:09:07,585 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2023-11-29 07:09:07,585 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:09:07,592 INFO L225 Difference]: With dead ends: 1540 [2023-11-29 07:09:07,592 INFO L226 Difference]: Without dead ends: 1540 [2023-11-29 07:09:07,593 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 07:09:07,593 INFO L413 NwaCegarLoop]: 992 mSDtfsCounter, 70 mSDsluCounter, 943 mSDsCounter, 0 mSdLazyCounter, 244 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 1935 SdHoareTripleChecker+Invalid, 244 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 244 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-11-29 07:09:07,594 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [70 Valid, 1935 Invalid, 244 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 244 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-11-29 07:09:07,596 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1540 states. [2023-11-29 07:09:07,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1540 to 1540. [2023-11-29 07:09:07,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1540 states, 974 states have (on average 2.1806981519507187) internal successors, (2124), 1515 states have internal predecessors, (2124), 24 states have call successors, (24), 5 states have call predecessors, (24), 4 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2023-11-29 07:09:07,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1540 states to 1540 states and 2168 transitions. [2023-11-29 07:09:07,620 INFO L78 Accepts]: Start accepts. Automaton has 1540 states and 2168 transitions. Word has length 12 [2023-11-29 07:09:07,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:09:07,620 INFO L495 AbstractCegarLoop]: Abstraction has 1540 states and 2168 transitions. [2023-11-29 07:09:07,620 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 07:09:07,620 INFO L276 IsEmpty]: Start isEmpty. Operand 1540 states and 2168 transitions. [2023-11-29 07:09:07,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-11-29 07:09:07,621 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:09:07,621 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 07:09:07,624 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5e2f426-a57a-4666-aeaf-099abc5557cc/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 07:09:07,824 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5e2f426-a57a-4666-aeaf-099abc5557cc/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 07:09:07,825 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, alt_mallocErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, alt_mallocErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 628 more)] === [2023-11-29 07:09:07,825 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:09:07,825 INFO L85 PathProgramCache]: Analyzing trace with hash -607253788, now seen corresponding path program 1 times [2023-11-29 07:09:07,826 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 07:09:07,826 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [886132952] [2023-11-29 07:09:07,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:09:07,826 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 07:09:07,826 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5e2f426-a57a-4666-aeaf-099abc5557cc/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 07:09:07,827 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5e2f426-a57a-4666-aeaf-099abc5557cc/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 07:09:07,828 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5e2f426-a57a-4666-aeaf-099abc5557cc/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 07:09:07,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:09:08,000 INFO L262 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-29 07:09:08,003 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:09:08,008 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-29 07:09:08,008 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-29 07:09:08,009 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-29 07:09:08,013 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 07:09:08,065 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-29 07:09:08,065 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 07:09:08,081 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 07:09:08,081 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 07:09:08,081 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 07:09:08,082 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [886132952] [2023-11-29 07:09:08,082 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [886132952] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 07:09:08,082 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 07:09:08,082 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 07:09:08,082 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1964515329] [2023-11-29 07:09:08,083 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 07:09:08,083 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 07:09:08,083 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 07:09:08,083 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 07:09:08,084 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 07:09:08,084 INFO L87 Difference]: Start difference. First operand 1540 states and 2168 transitions. Second operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 07:09:10,228 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:09:10,228 INFO L93 Difference]: Finished difference Result 2237 states and 2664 transitions. [2023-11-29 07:09:10,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 07:09:10,229 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2023-11-29 07:09:10,229 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:09:10,238 INFO L225 Difference]: With dead ends: 2237 [2023-11-29 07:09:10,238 INFO L226 Difference]: Without dead ends: 2237 [2023-11-29 07:09:10,238 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-29 07:09:10,238 INFO L413 NwaCegarLoop]: 1172 mSDtfsCounter, 1011 mSDsluCounter, 2142 mSDsCounter, 0 mSdLazyCounter, 464 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1025 SdHoareTripleChecker+Valid, 3314 SdHoareTripleChecker+Invalid, 465 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 464 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2023-11-29 07:09:10,239 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1025 Valid, 3314 Invalid, 465 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 464 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2023-11-29 07:09:10,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2237 states. [2023-11-29 07:09:10,262 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2237 to 1273. [2023-11-29 07:09:10,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1273 states, 709 states have (on average 2.1763046544428772) internal successors, (1543), 1250 states have internal predecessors, (1543), 22 states have call successors, (22), 5 states have call predecessors, (22), 4 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2023-11-29 07:09:10,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1273 states to 1273 states and 1583 transitions. [2023-11-29 07:09:10,269 INFO L78 Accepts]: Start accepts. Automaton has 1273 states and 1583 transitions. Word has length 15 [2023-11-29 07:09:10,270 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:09:10,270 INFO L495 AbstractCegarLoop]: Abstraction has 1273 states and 1583 transitions. [2023-11-29 07:09:10,270 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 07:09:10,270 INFO L276 IsEmpty]: Start isEmpty. Operand 1273 states and 1583 transitions. [2023-11-29 07:09:10,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-11-29 07:09:10,270 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:09:10,271 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 07:09:10,275 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5e2f426-a57a-4666-aeaf-099abc5557cc/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)] Forceful destruction successful, exit code 0 [2023-11-29 07:09:10,471 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5e2f426-a57a-4666-aeaf-099abc5557cc/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 07:09:10,471 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr14REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, alt_mallocErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, alt_mallocErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 628 more)] === [2023-11-29 07:09:10,472 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:09:10,472 INFO L85 PathProgramCache]: Analyzing trace with hash -1442573483, now seen corresponding path program 1 times [2023-11-29 07:09:10,472 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 07:09:10,473 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [369349424] [2023-11-29 07:09:10,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:09:10,473 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 07:09:10,473 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5e2f426-a57a-4666-aeaf-099abc5557cc/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 07:09:10,474 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5e2f426-a57a-4666-aeaf-099abc5557cc/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 07:09:10,475 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5e2f426-a57a-4666-aeaf-099abc5557cc/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 07:09:10,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:09:10,713 INFO L262 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-29 07:09:10,715 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:09:10,724 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 07:09:10,724 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 07:09:10,724 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 07:09:10,724 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [369349424] [2023-11-29 07:09:10,724 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [369349424] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 07:09:10,724 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 07:09:10,725 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 07:09:10,725 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1872391396] [2023-11-29 07:09:10,725 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 07:09:10,725 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 07:09:10,725 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 07:09:10,726 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 07:09:10,726 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 07:09:10,726 INFO L87 Difference]: Start difference. First operand 1273 states and 1583 transitions. Second operand has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 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 07:09:11,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:09:11,630 INFO L93 Difference]: Finished difference Result 1219 states and 1503 transitions. [2023-11-29 07:09:11,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 07:09:11,632 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 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 15 [2023-11-29 07:09:11,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:09:11,638 INFO L225 Difference]: With dead ends: 1219 [2023-11-29 07:09:11,638 INFO L226 Difference]: Without dead ends: 1219 [2023-11-29 07:09:11,638 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 13 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 07:09:11,639 INFO L413 NwaCegarLoop]: 955 mSDtfsCounter, 70 mSDsluCounter, 906 mSDsCounter, 0 mSdLazyCounter, 238 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 1861 SdHoareTripleChecker+Invalid, 238 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 238 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-11-29 07:09:11,639 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [70 Valid, 1861 Invalid, 238 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 238 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-11-29 07:09:11,641 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1219 states. [2023-11-29 07:09:11,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1219 to 1219. [2023-11-29 07:09:11,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1219 states, 679 states have (on average 2.154639175257732) internal successors, (1463), 1196 states have internal predecessors, (1463), 22 states have call successors, (22), 5 states have call predecessors, (22), 4 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2023-11-29 07:09:11,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1219 states to 1219 states and 1503 transitions. [2023-11-29 07:09:11,656 INFO L78 Accepts]: Start accepts. Automaton has 1219 states and 1503 transitions. Word has length 15 [2023-11-29 07:09:11,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:09:11,656 INFO L495 AbstractCegarLoop]: Abstraction has 1219 states and 1503 transitions. [2023-11-29 07:09:11,657 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 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 07:09:11,657 INFO L276 IsEmpty]: Start isEmpty. Operand 1219 states and 1503 transitions. [2023-11-29 07:09:11,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-11-29 07:09:11,657 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:09:11,657 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 07:09:11,661 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5e2f426-a57a-4666-aeaf-099abc5557cc/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 07:09:11,857 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5e2f426-a57a-4666-aeaf-099abc5557cc/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 07:09:11,858 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr38REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, alt_mallocErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, alt_mallocErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 628 more)] === [2023-11-29 07:09:11,858 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:09:11,858 INFO L85 PathProgramCache]: Analyzing trace with hash 961317391, now seen corresponding path program 1 times [2023-11-29 07:09:11,858 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 07:09:11,858 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [741759482] [2023-11-29 07:09:11,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:09:11,859 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 07:09:11,859 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5e2f426-a57a-4666-aeaf-099abc5557cc/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 07:09:11,859 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5e2f426-a57a-4666-aeaf-099abc5557cc/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 07:09:11,860 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5e2f426-a57a-4666-aeaf-099abc5557cc/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 07:09:12,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:09:12,061 INFO L262 TraceCheckSpWp]: Trace formula consists of 142 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 07:09:12,063 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:09:12,082 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 07:09:12,082 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 07:09:12,082 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 07:09:12,083 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [741759482] [2023-11-29 07:09:12,083 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [741759482] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 07:09:12,083 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 07:09:12,083 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 07:09:12,083 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [35868569] [2023-11-29 07:09:12,083 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 07:09:12,083 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 07:09:12,084 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 07:09:12,084 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 07:09:12,084 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 07:09:12,084 INFO L87 Difference]: Start difference. First operand 1219 states and 1503 transitions. Second operand has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 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 07:09:13,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:09:13,230 INFO L93 Difference]: Finished difference Result 1205 states and 1461 transitions. [2023-11-29 07:09:13,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 07:09:13,232 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 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 17 [2023-11-29 07:09:13,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:09:13,236 INFO L225 Difference]: With dead ends: 1205 [2023-11-29 07:09:13,236 INFO L226 Difference]: Without dead ends: 1205 [2023-11-29 07:09:13,236 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 14 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 07:09:13,237 INFO L413 NwaCegarLoop]: 924 mSDtfsCounter, 58 mSDsluCounter, 1824 mSDsCounter, 0 mSdLazyCounter, 362 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 2748 SdHoareTripleChecker+Invalid, 384 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 362 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-11-29 07:09:13,237 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 2748 Invalid, 384 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 362 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-11-29 07:09:13,239 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1205 states. [2023-11-29 07:09:13,250 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1205 to 1203. [2023-11-29 07:09:13,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1203 states, 677 states have (on average 2.0960118168389954) internal successors, (1419), 1180 states have internal predecessors, (1419), 22 states have call successors, (22), 5 states have call predecessors, (22), 4 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2023-11-29 07:09:13,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1203 states to 1203 states and 1459 transitions. [2023-11-29 07:09:13,254 INFO L78 Accepts]: Start accepts. Automaton has 1203 states and 1459 transitions. Word has length 17 [2023-11-29 07:09:13,254 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:09:13,254 INFO L495 AbstractCegarLoop]: Abstraction has 1203 states and 1459 transitions. [2023-11-29 07:09:13,254 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 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 07:09:13,254 INFO L276 IsEmpty]: Start isEmpty. Operand 1203 states and 1459 transitions. [2023-11-29 07:09:13,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2023-11-29 07:09:13,255 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:09:13,255 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] [2023-11-29 07:09:13,259 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5e2f426-a57a-4666-aeaf-099abc5557cc/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 07:09:13,455 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5e2f426-a57a-4666-aeaf-099abc5557cc/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 07:09:13,456 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr53REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, alt_mallocErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, alt_mallocErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 628 more)] === [2023-11-29 07:09:13,456 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:09:13,456 INFO L85 PathProgramCache]: Analyzing trace with hash 656934686, now seen corresponding path program 1 times [2023-11-29 07:09:13,457 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 07:09:13,457 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1317736187] [2023-11-29 07:09:13,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:09:13,457 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 07:09:13,457 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5e2f426-a57a-4666-aeaf-099abc5557cc/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 07:09:13,458 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5e2f426-a57a-4666-aeaf-099abc5557cc/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 07:09:13,459 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5e2f426-a57a-4666-aeaf-099abc5557cc/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 07:09:13,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:09:13,629 INFO L262 TraceCheckSpWp]: Trace formula consists of 156 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-29 07:09:13,632 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:09:13,641 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-11-29 07:09:13,814 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 07:09:13,814 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 07:09:13,814 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 07:09:13,814 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1317736187] [2023-11-29 07:09:13,814 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1317736187] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 07:09:13,814 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 07:09:13,814 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 07:09:13,815 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1073035554] [2023-11-29 07:09:13,815 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 07:09:13,815 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 07:09:13,815 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 07:09:13,815 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 07:09:13,815 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 07:09:13,816 INFO L87 Difference]: Start difference. First operand 1203 states and 1459 transitions. Second operand has 4 states, 3 states have (on average 10.333333333333334) internal successors, (31), 4 states have internal predecessors, (31), 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 07:09:18,189 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:09:18,189 INFO L93 Difference]: Finished difference Result 1670 states and 2052 transitions. [2023-11-29 07:09:18,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 07:09:18,190 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 10.333333333333334) internal successors, (31), 4 states have internal predecessors, (31), 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 31 [2023-11-29 07:09:18,190 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:09:18,196 INFO L225 Difference]: With dead ends: 1670 [2023-11-29 07:09:18,196 INFO L226 Difference]: Without dead ends: 1670 [2023-11-29 07:09:18,196 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 28 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 07:09:18,197 INFO L413 NwaCegarLoop]: 1124 mSDtfsCounter, 523 mSDsluCounter, 1114 mSDsCounter, 0 mSdLazyCounter, 1640 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 525 SdHoareTripleChecker+Valid, 2238 SdHoareTripleChecker+Invalid, 1643 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1640 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2023-11-29 07:09:18,197 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [525 Valid, 2238 Invalid, 1643 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1640 Invalid, 0 Unknown, 0 Unchecked, 4.3s Time] [2023-11-29 07:09:18,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1670 states. [2023-11-29 07:09:18,209 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1670 to 1199. [2023-11-29 07:09:18,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1199 states, 677 states have (on average 2.0841949778434268) internal successors, (1411), 1176 states have internal predecessors, (1411), 22 states have call successors, (22), 5 states have call predecessors, (22), 4 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2023-11-29 07:09:18,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1199 states to 1199 states and 1451 transitions. [2023-11-29 07:09:18,213 INFO L78 Accepts]: Start accepts. Automaton has 1199 states and 1451 transitions. Word has length 31 [2023-11-29 07:09:18,213 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:09:18,213 INFO L495 AbstractCegarLoop]: Abstraction has 1199 states and 1451 transitions. [2023-11-29 07:09:18,213 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 10.333333333333334) internal successors, (31), 4 states have internal predecessors, (31), 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 07:09:18,213 INFO L276 IsEmpty]: Start isEmpty. Operand 1199 states and 1451 transitions. [2023-11-29 07:09:18,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2023-11-29 07:09:18,214 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:09:18,214 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] [2023-11-29 07:09:18,218 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5e2f426-a57a-4666-aeaf-099abc5557cc/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 07:09:18,414 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5e2f426-a57a-4666-aeaf-099abc5557cc/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 07:09:18,415 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr52REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, alt_mallocErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, alt_mallocErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 628 more)] === [2023-11-29 07:09:18,415 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:09:18,415 INFO L85 PathProgramCache]: Analyzing trace with hash 656934685, now seen corresponding path program 1 times [2023-11-29 07:09:18,415 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 07:09:18,416 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [592870696] [2023-11-29 07:09:18,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:09:18,416 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 07:09:18,416 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5e2f426-a57a-4666-aeaf-099abc5557cc/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 07:09:18,417 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5e2f426-a57a-4666-aeaf-099abc5557cc/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 07:09:18,418 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5e2f426-a57a-4666-aeaf-099abc5557cc/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 07:09:18,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:09:18,588 INFO L262 TraceCheckSpWp]: Trace formula consists of 156 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 07:09:18,591 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:09:18,596 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2023-11-29 07:09:18,661 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 07:09:18,661 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 07:09:18,661 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 07:09:18,662 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [592870696] [2023-11-29 07:09:18,662 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [592870696] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 07:09:18,662 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 07:09:18,662 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 07:09:18,662 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [790810387] [2023-11-29 07:09:18,662 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 07:09:18,663 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 07:09:18,663 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 07:09:18,663 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 07:09:18,663 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 07:09:18,663 INFO L87 Difference]: Start difference. First operand 1199 states and 1451 transitions. Second operand has 4 states, 3 states have (on average 10.333333333333334) internal successors, (31), 4 states have internal predecessors, (31), 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 07:09:21,488 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:09:21,488 INFO L93 Difference]: Finished difference Result 1579 states and 1953 transitions. [2023-11-29 07:09:21,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 07:09:21,489 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 10.333333333333334) internal successors, (31), 4 states have internal predecessors, (31), 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 31 [2023-11-29 07:09:21,489 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:09:21,496 INFO L225 Difference]: With dead ends: 1579 [2023-11-29 07:09:21,496 INFO L226 Difference]: Without dead ends: 1579 [2023-11-29 07:09:21,497 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 28 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 07:09:21,497 INFO L413 NwaCegarLoop]: 610 mSDtfsCounter, 754 mSDsluCounter, 776 mSDsCounter, 0 mSdLazyCounter, 1320 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 757 SdHoareTripleChecker+Valid, 1386 SdHoareTripleChecker+Invalid, 1328 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 1320 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2023-11-29 07:09:21,498 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [757 Valid, 1386 Invalid, 1328 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 1320 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2023-11-29 07:09:21,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1579 states. [2023-11-29 07:09:21,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1579 to 1195. [2023-11-29 07:09:21,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1195 states, 677 states have (on average 2.072378138847858) internal successors, (1403), 1172 states have internal predecessors, (1403), 22 states have call successors, (22), 5 states have call predecessors, (22), 4 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2023-11-29 07:09:21,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1195 states to 1195 states and 1443 transitions. [2023-11-29 07:09:21,516 INFO L78 Accepts]: Start accepts. Automaton has 1195 states and 1443 transitions. Word has length 31 [2023-11-29 07:09:21,516 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:09:21,516 INFO L495 AbstractCegarLoop]: Abstraction has 1195 states and 1443 transitions. [2023-11-29 07:09:21,516 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 10.333333333333334) internal successors, (31), 4 states have internal predecessors, (31), 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 07:09:21,517 INFO L276 IsEmpty]: Start isEmpty. Operand 1195 states and 1443 transitions. [2023-11-29 07:09:21,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2023-11-29 07:09:21,518 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:09:21,518 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, 1, 1, 1] [2023-11-29 07:09:21,521 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5e2f426-a57a-4666-aeaf-099abc5557cc/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 07:09:21,719 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5e2f426-a57a-4666-aeaf-099abc5557cc/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 07:09:21,719 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting alt_mallocErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, alt_mallocErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, alt_mallocErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 628 more)] === [2023-11-29 07:09:21,719 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:09:21,719 INFO L85 PathProgramCache]: Analyzing trace with hash 863160283, now seen corresponding path program 1 times [2023-11-29 07:09:21,720 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 07:09:21,720 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1560103003] [2023-11-29 07:09:21,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:09:21,720 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 07:09:21,720 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5e2f426-a57a-4666-aeaf-099abc5557cc/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 07:09:21,721 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5e2f426-a57a-4666-aeaf-099abc5557cc/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 07:09:21,722 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5e2f426-a57a-4666-aeaf-099abc5557cc/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 07:09:21,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:09:21,950 INFO L262 TraceCheckSpWp]: Trace formula consists of 271 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 07:09:21,952 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:09:21,993 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 07:09:21,993 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 07:09:21,994 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 07:09:21,994 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1560103003] [2023-11-29 07:09:21,994 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1560103003] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 07:09:21,994 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 07:09:21,994 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 07:09:21,994 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [227885839] [2023-11-29 07:09:21,994 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 07:09:21,995 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 07:09:21,995 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 07:09:21,995 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 07:09:21,995 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 07:09:21,995 INFO L87 Difference]: Start difference. First operand 1195 states and 1443 transitions. Second operand has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 07:09:23,149 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:09:23,149 INFO L93 Difference]: Finished difference Result 1183 states and 1423 transitions. [2023-11-29 07:09:23,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 07:09:23,151 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 51 [2023-11-29 07:09:23,151 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:09:23,155 INFO L225 Difference]: With dead ends: 1183 [2023-11-29 07:09:23,155 INFO L226 Difference]: Without dead ends: 1183 [2023-11-29 07:09:23,156 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 48 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 07:09:23,156 INFO L413 NwaCegarLoop]: 918 mSDtfsCounter, 23 mSDsluCounter, 1816 mSDsCounter, 0 mSdLazyCounter, 358 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 2734 SdHoareTripleChecker+Invalid, 364 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 358 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-11-29 07:09:23,156 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 2734 Invalid, 364 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 358 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-11-29 07:09:23,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1183 states. [2023-11-29 07:09:23,170 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1183 to 1183. [2023-11-29 07:09:23,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1183 states, 665 states have (on average 2.079699248120301) internal successors, (1383), 1160 states have internal predecessors, (1383), 22 states have call successors, (22), 5 states have call predecessors, (22), 4 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2023-11-29 07:09:23,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1183 states to 1183 states and 1423 transitions. [2023-11-29 07:09:23,175 INFO L78 Accepts]: Start accepts. Automaton has 1183 states and 1423 transitions. Word has length 51 [2023-11-29 07:09:23,175 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:09:23,175 INFO L495 AbstractCegarLoop]: Abstraction has 1183 states and 1423 transitions. [2023-11-29 07:09:23,175 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 07:09:23,175 INFO L276 IsEmpty]: Start isEmpty. Operand 1183 states and 1423 transitions. [2023-11-29 07:09:23,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2023-11-29 07:09:23,177 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:09:23,177 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, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 07:09:23,182 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5e2f426-a57a-4666-aeaf-099abc5557cc/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 07:09:23,378 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5e2f426-a57a-4666-aeaf-099abc5557cc/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 07:09:23,378 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting alt_mallocErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, alt_mallocErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, alt_mallocErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 628 more)] === [2023-11-29 07:09:23,378 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:09:23,378 INFO L85 PathProgramCache]: Analyzing trace with hash 926748, now seen corresponding path program 1 times [2023-11-29 07:09:23,379 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 07:09:23,379 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [311547352] [2023-11-29 07:09:23,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:09:23,379 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 07:09:23,379 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5e2f426-a57a-4666-aeaf-099abc5557cc/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 07:09:23,380 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5e2f426-a57a-4666-aeaf-099abc5557cc/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 07:09:23,381 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5e2f426-a57a-4666-aeaf-099abc5557cc/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 07:09:23,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:09:23,748 INFO L262 TraceCheckSpWp]: Trace formula consists of 291 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-29 07:09:23,751 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:09:23,773 INFO L349 Elim1Store]: treesize reduction 15, result has 42.3 percent of original size [2023-11-29 07:09:23,773 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 17 [2023-11-29 07:09:23,845 INFO L349 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2023-11-29 07:09:23,846 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 28 [2023-11-29 07:09:24,442 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 07:09:24,442 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 07:09:24,442 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 07:09:24,442 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [311547352] [2023-11-29 07:09:24,443 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [311547352] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 07:09:24,443 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 07:09:24,443 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 07:09:24,443 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1572865170] [2023-11-29 07:09:24,443 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 07:09:24,444 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 07:09:24,444 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 07:09:24,444 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 07:09:24,444 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-11-29 07:09:24,445 INFO L87 Difference]: Start difference. First operand 1183 states and 1423 transitions. Second operand has 5 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 07:09:29,127 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:09:29,127 INFO L93 Difference]: Finished difference Result 2171 states and 2607 transitions. [2023-11-29 07:09:29,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 07:09:29,129 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 55 [2023-11-29 07:09:29,129 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:09:29,137 INFO L225 Difference]: With dead ends: 2171 [2023-11-29 07:09:29,137 INFO L226 Difference]: Without dead ends: 2171 [2023-11-29 07:09:29,137 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-11-29 07:09:29,138 INFO L413 NwaCegarLoop]: 739 mSDtfsCounter, 1763 mSDsluCounter, 1038 mSDsCounter, 0 mSdLazyCounter, 1547 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1763 SdHoareTripleChecker+Valid, 1777 SdHoareTripleChecker+Invalid, 1581 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 1547 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2023-11-29 07:09:29,138 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1763 Valid, 1777 Invalid, 1581 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 1547 Invalid, 0 Unknown, 0 Unchecked, 4.6s Time] [2023-11-29 07:09:29,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2171 states. [2023-11-29 07:09:29,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2171 to 1546. [2023-11-29 07:09:29,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1546 states, 1012 states have (on average 2.0622529644268774) internal successors, (2087), 1510 states have internal predecessors, (2087), 35 states have call successors, (35), 9 states have call predecessors, (35), 7 states have return successors, (31), 28 states have call predecessors, (31), 31 states have call successors, (31) [2023-11-29 07:09:29,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1546 states to 1546 states and 2153 transitions. [2023-11-29 07:09:29,169 INFO L78 Accepts]: Start accepts. Automaton has 1546 states and 2153 transitions. Word has length 55 [2023-11-29 07:09:29,169 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:09:29,169 INFO L495 AbstractCegarLoop]: Abstraction has 1546 states and 2153 transitions. [2023-11-29 07:09:29,169 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 07:09:29,169 INFO L276 IsEmpty]: Start isEmpty. Operand 1546 states and 2153 transitions. [2023-11-29 07:09:29,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2023-11-29 07:09:29,170 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:09:29,170 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, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 07:09:29,175 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5e2f426-a57a-4666-aeaf-099abc5557cc/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 07:09:29,370 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5e2f426-a57a-4666-aeaf-099abc5557cc/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 07:09:29,371 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting alt_mallocErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, alt_mallocErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, alt_mallocErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 628 more)] === [2023-11-29 07:09:29,371 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:09:29,371 INFO L85 PathProgramCache]: Analyzing trace with hash 926749, now seen corresponding path program 1 times [2023-11-29 07:09:29,371 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 07:09:29,371 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1860791868] [2023-11-29 07:09:29,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:09:29,372 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 07:09:29,372 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5e2f426-a57a-4666-aeaf-099abc5557cc/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 07:09:29,372 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5e2f426-a57a-4666-aeaf-099abc5557cc/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 07:09:29,373 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5e2f426-a57a-4666-aeaf-099abc5557cc/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 07:09:29,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:09:29,736 INFO L262 TraceCheckSpWp]: Trace formula consists of 291 conjuncts, 16 conjunts are in the unsatisfiable core [2023-11-29 07:09:29,738 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:09:29,757 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-29 07:09:29,758 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 9 [2023-11-29 07:09:29,827 INFO L349 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2023-11-29 07:09:29,827 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 12 treesize of output 14 [2023-11-29 07:09:30,453 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 07:09:30,453 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 07:09:30,453 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 07:09:30,454 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1860791868] [2023-11-29 07:09:30,454 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1860791868] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 07:09:30,454 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 07:09:30,454 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 07:09:30,454 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1596782978] [2023-11-29 07:09:30,454 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 07:09:30,455 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 07:09:30,455 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 07:09:30,455 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 07:09:30,455 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 07:09:30,456 INFO L87 Difference]: Start difference. First operand 1546 states and 2153 transitions. Second operand has 4 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 07:09:34,130 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:09:34,130 INFO L93 Difference]: Finished difference Result 1551 states and 2159 transitions. [2023-11-29 07:09:34,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 07:09:34,131 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 55 [2023-11-29 07:09:34,131 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:09:34,137 INFO L225 Difference]: With dead ends: 1551 [2023-11-29 07:09:34,137 INFO L226 Difference]: Without dead ends: 1551 [2023-11-29 07:09:34,137 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 51 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 07:09:34,138 INFO L413 NwaCegarLoop]: 923 mSDtfsCounter, 0 mSDsluCounter, 983 mSDsCounter, 0 mSdLazyCounter, 1227 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1906 SdHoareTripleChecker+Invalid, 1227 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1227 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2023-11-29 07:09:34,138 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1906 Invalid, 1227 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1227 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2023-11-29 07:09:34,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1551 states. [2023-11-29 07:09:34,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1551 to 1551. [2023-11-29 07:09:34,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1551 states, 1016 states have (on average 2.0580708661417324) internal successors, (2091), 1514 states have internal predecessors, (2091), 36 states have call successors, (36), 10 states have call predecessors, (36), 7 states have return successors, (32), 28 states have call predecessors, (32), 32 states have call successors, (32) [2023-11-29 07:09:34,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1551 states to 1551 states and 2159 transitions. [2023-11-29 07:09:34,175 INFO L78 Accepts]: Start accepts. Automaton has 1551 states and 2159 transitions. Word has length 55 [2023-11-29 07:09:34,175 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:09:34,175 INFO L495 AbstractCegarLoop]: Abstraction has 1551 states and 2159 transitions. [2023-11-29 07:09:34,175 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 07:09:34,175 INFO L276 IsEmpty]: Start isEmpty. Operand 1551 states and 2159 transitions. [2023-11-29 07:09:34,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2023-11-29 07:09:34,176 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:09:34,176 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 07:09:34,182 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5e2f426-a57a-4666-aeaf-099abc5557cc/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 07:09:34,377 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5e2f426-a57a-4666-aeaf-099abc5557cc/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 07:09:34,377 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr70REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, alt_mallocErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, alt_mallocErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 628 more)] === [2023-11-29 07:09:34,378 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:09:34,378 INFO L85 PathProgramCache]: Analyzing trace with hash -1243031911, now seen corresponding path program 1 times [2023-11-29 07:09:34,378 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 07:09:34,378 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [775058067] [2023-11-29 07:09:34,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:09:34,379 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 07:09:34,379 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5e2f426-a57a-4666-aeaf-099abc5557cc/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 07:09:34,380 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5e2f426-a57a-4666-aeaf-099abc5557cc/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 07:09:34,381 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5e2f426-a57a-4666-aeaf-099abc5557cc/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 07:09:34,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:09:34,639 INFO L262 TraceCheckSpWp]: Trace formula consists of 324 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-29 07:09:34,641 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:09:34,765 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 07:09:34,766 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 07:09:34,766 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 07:09:34,766 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [775058067] [2023-11-29 07:09:34,766 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [775058067] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 07:09:34,766 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 07:09:34,766 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 07:09:34,766 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [952899259] [2023-11-29 07:09:34,766 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 07:09:34,767 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 07:09:34,767 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 07:09:34,767 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 07:09:34,767 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-29 07:09:34,768 INFO L87 Difference]: Start difference. First operand 1551 states and 2159 transitions. Second operand has 6 states, 6 states have (on average 9.5) internal successors, (57), 4 states have internal predecessors, (57), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-29 07:09:36,840 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:09:36,840 INFO L93 Difference]: Finished difference Result 1555 states and 2167 transitions. [2023-11-29 07:09:36,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 07:09:36,842 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.5) internal successors, (57), 4 states have internal predecessors, (57), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 59 [2023-11-29 07:09:36,843 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:09:36,850 INFO L225 Difference]: With dead ends: 1555 [2023-11-29 07:09:36,851 INFO L226 Difference]: Without dead ends: 1555 [2023-11-29 07:09:36,851 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-11-29 07:09:36,851 INFO L413 NwaCegarLoop]: 915 mSDtfsCounter, 19 mSDsluCounter, 3569 mSDsCounter, 0 mSdLazyCounter, 703 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 4484 SdHoareTripleChecker+Invalid, 721 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 703 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2023-11-29 07:09:36,852 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 4484 Invalid, 721 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 703 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2023-11-29 07:09:36,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1555 states. [2023-11-29 07:09:36,871 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1555 to 1553. [2023-11-29 07:09:36,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1553 states, 1017 states have (on average 2.057030481809243) internal successors, (2092), 1515 states have internal predecessors, (2092), 36 states have call successors, (36), 10 states have call predecessors, (36), 8 states have return successors, (35), 28 states have call predecessors, (35), 32 states have call successors, (35) [2023-11-29 07:09:36,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1553 states to 1553 states and 2163 transitions. [2023-11-29 07:09:36,876 INFO L78 Accepts]: Start accepts. Automaton has 1553 states and 2163 transitions. Word has length 59 [2023-11-29 07:09:36,877 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:09:36,877 INFO L495 AbstractCegarLoop]: Abstraction has 1553 states and 2163 transitions. [2023-11-29 07:09:36,877 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.5) internal successors, (57), 4 states have internal predecessors, (57), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-29 07:09:36,877 INFO L276 IsEmpty]: Start isEmpty. Operand 1553 states and 2163 transitions. [2023-11-29 07:09:36,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2023-11-29 07:09:36,877 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:09:36,878 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 07:09:36,884 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5e2f426-a57a-4666-aeaf-099abc5557cc/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 07:09:37,078 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5e2f426-a57a-4666-aeaf-099abc5557cc/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 07:09:37,078 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, alt_mallocErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, alt_mallocErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 628 more)] === [2023-11-29 07:09:37,079 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:09:37,079 INFO L85 PathProgramCache]: Analyzing trace with hash 541184168, now seen corresponding path program 1 times [2023-11-29 07:09:37,079 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 07:09:37,079 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1365242602] [2023-11-29 07:09:37,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:09:37,079 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 07:09:37,079 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5e2f426-a57a-4666-aeaf-099abc5557cc/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 07:09:37,080 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5e2f426-a57a-4666-aeaf-099abc5557cc/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 07:09:37,081 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5e2f426-a57a-4666-aeaf-099abc5557cc/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 07:09:37,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:09:37,374 INFO L262 TraceCheckSpWp]: Trace formula consists of 323 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 07:09:37,377 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:09:37,416 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 07:09:37,416 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 07:09:37,416 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 07:09:37,416 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1365242602] [2023-11-29 07:09:37,416 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1365242602] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 07:09:37,416 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 07:09:37,417 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-29 07:09:37,417 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [296339674] [2023-11-29 07:09:37,417 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 07:09:37,417 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 07:09:37,417 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 07:09:37,418 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 07:09:37,418 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-29 07:09:37,418 INFO L87 Difference]: Start difference. First operand 1553 states and 2163 transitions. Second operand has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 4 states have internal predecessors, (59), 3 states have call successors, (3), 3 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 07:09:39,156 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:09:39,156 INFO L93 Difference]: Finished difference Result 1577 states and 2187 transitions. [2023-11-29 07:09:39,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 07:09:39,158 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 4 states have internal predecessors, (59), 3 states have call successors, (3), 3 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 62 [2023-11-29 07:09:39,158 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:09:39,166 INFO L225 Difference]: With dead ends: 1577 [2023-11-29 07:09:39,166 INFO L226 Difference]: Without dead ends: 1577 [2023-11-29 07:09:39,166 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-11-29 07:09:39,167 INFO L413 NwaCegarLoop]: 930 mSDtfsCounter, 16 mSDsluCounter, 3713 mSDsCounter, 0 mSdLazyCounter, 584 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 4643 SdHoareTripleChecker+Invalid, 586 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 584 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2023-11-29 07:09:39,167 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 4643 Invalid, 586 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 584 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2023-11-29 07:09:39,169 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1577 states. [2023-11-29 07:09:39,186 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1577 to 1573. [2023-11-29 07:09:39,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1573 states, 1031 states have (on average 2.0475266731328805) internal successors, (2111), 1531 states have internal predecessors, (2111), 38 states have call successors, (38), 14 states have call predecessors, (38), 12 states have return successors, (35), 30 states have call predecessors, (35), 34 states have call successors, (35) [2023-11-29 07:09:39,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1573 states to 1573 states and 2184 transitions. [2023-11-29 07:09:39,190 INFO L78 Accepts]: Start accepts. Automaton has 1573 states and 2184 transitions. Word has length 62 [2023-11-29 07:09:39,191 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:09:39,191 INFO L495 AbstractCegarLoop]: Abstraction has 1573 states and 2184 transitions. [2023-11-29 07:09:39,191 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 4 states have internal predecessors, (59), 3 states have call successors, (3), 3 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 07:09:39,191 INFO L276 IsEmpty]: Start isEmpty. Operand 1573 states and 2184 transitions. [2023-11-29 07:09:39,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2023-11-29 07:09:39,192 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:09:39,192 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 07:09:39,197 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5e2f426-a57a-4666-aeaf-099abc5557cc/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 07:09:39,392 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5e2f426-a57a-4666-aeaf-099abc5557cc/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 07:09:39,393 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr70REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, alt_mallocErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, alt_mallocErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 628 more)] === [2023-11-29 07:09:39,393 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:09:39,393 INFO L85 PathProgramCache]: Analyzing trace with hash 498416841, now seen corresponding path program 1 times [2023-11-29 07:09:39,393 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 07:09:39,393 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1288795032] [2023-11-29 07:09:39,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:09:39,394 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 07:09:39,394 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5e2f426-a57a-4666-aeaf-099abc5557cc/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 07:09:39,395 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5e2f426-a57a-4666-aeaf-099abc5557cc/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 07:09:39,396 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5e2f426-a57a-4666-aeaf-099abc5557cc/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 [2023-11-29 07:09:39,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:09:39,897 INFO L262 TraceCheckSpWp]: Trace formula consists of 331 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-29 07:09:39,901 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:09:39,905 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2023-11-29 07:09:40,029 WARN L876 $PredicateComparison]: unable to prove that (exists ((|alt_malloc_#res.base| (_ BitVec 32))) (= |c_#valid| (store |c_old(#valid)| |alt_malloc_#res.base| (_ bv1 1)))) is different from true [2023-11-29 07:09:40,050 INFO L349 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2023-11-29 07:09:40,050 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 14 treesize of output 20 [2023-11-29 07:09:40,058 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 07:09:40,058 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 07:09:40,058 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 07:09:40,058 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1288795032] [2023-11-29 07:09:40,059 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1288795032] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 07:09:40,059 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 07:09:40,059 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 07:09:40,059 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1890117822] [2023-11-29 07:09:40,059 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 07:09:40,060 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 07:09:40,060 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 07:09:40,060 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 07:09:40,060 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=8, Unknown=1, NotChecked=4, Total=20 [2023-11-29 07:09:40,061 INFO L87 Difference]: Start difference. First operand 1573 states and 2184 transitions. Second operand has 5 states, 3 states have (on average 20.0) internal successors, (60), 5 states have internal predecessors, (60), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-29 07:09:43,024 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:09:43,024 INFO L93 Difference]: Finished difference Result 1956 states and 2692 transitions. [2023-11-29 07:09:43,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 07:09:43,025 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 3 states have (on average 20.0) internal successors, (60), 5 states have internal predecessors, (60), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 64 [2023-11-29 07:09:43,025 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:09:43,029 INFO L225 Difference]: With dead ends: 1956 [2023-11-29 07:09:43,029 INFO L226 Difference]: Without dead ends: 1956 [2023-11-29 07:09:43,029 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 59 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=8, Unknown=1, NotChecked=4, Total=20 [2023-11-29 07:09:43,030 INFO L413 NwaCegarLoop]: 581 mSDtfsCounter, 723 mSDsluCounter, 748 mSDsCounter, 0 mSdLazyCounter, 1341 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 726 SdHoareTripleChecker+Valid, 1329 SdHoareTripleChecker+Invalid, 2765 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 1341 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 1401 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2023-11-29 07:09:43,030 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [726 Valid, 1329 Invalid, 2765 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 1341 Invalid, 0 Unknown, 1401 Unchecked, 2.9s Time] [2023-11-29 07:09:43,034 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1956 states. [2023-11-29 07:09:43,059 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1956 to 1572. [2023-11-29 07:09:43,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1572 states, 1031 states have (on average 2.0455868089233755) internal successors, (2109), 1530 states have internal predecessors, (2109), 38 states have call successors, (38), 14 states have call predecessors, (38), 12 states have return successors, (35), 30 states have call predecessors, (35), 34 states have call successors, (35) [2023-11-29 07:09:43,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1572 states to 1572 states and 2182 transitions. [2023-11-29 07:09:43,065 INFO L78 Accepts]: Start accepts. Automaton has 1572 states and 2182 transitions. Word has length 64 [2023-11-29 07:09:43,066 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:09:43,066 INFO L495 AbstractCegarLoop]: Abstraction has 1572 states and 2182 transitions. [2023-11-29 07:09:43,066 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 3 states have (on average 20.0) internal successors, (60), 5 states have internal predecessors, (60), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-29 07:09:43,066 INFO L276 IsEmpty]: Start isEmpty. Operand 1572 states and 2182 transitions. [2023-11-29 07:09:43,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2023-11-29 07:09:43,067 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:09:43,067 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 07:09:43,073 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5e2f426-a57a-4666-aeaf-099abc5557cc/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)] Ended with exit code 0 [2023-11-29 07:09:43,267 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5e2f426-a57a-4666-aeaf-099abc5557cc/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 07:09:43,267 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr71REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, alt_mallocErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, alt_mallocErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 628 more)] === [2023-11-29 07:09:43,268 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:09:43,268 INFO L85 PathProgramCache]: Analyzing trace with hash 498416842, now seen corresponding path program 1 times [2023-11-29 07:09:43,268 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 07:09:43,268 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1743741406] [2023-11-29 07:09:43,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:09:43,268 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 07:09:43,269 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5e2f426-a57a-4666-aeaf-099abc5557cc/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 07:09:43,269 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5e2f426-a57a-4666-aeaf-099abc5557cc/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 07:09:43,270 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5e2f426-a57a-4666-aeaf-099abc5557cc/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 (20)] Waiting until timeout for monitored process [2023-11-29 07:09:43,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:09:43,689 INFO L262 TraceCheckSpWp]: Trace formula consists of 331 conjuncts, 14 conjunts are in the unsatisfiable core [2023-11-29 07:09:43,692 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:09:43,701 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-11-29 07:09:43,706 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2023-11-29 07:09:44,127 WARN L876 $PredicateComparison]: unable to prove that (exists ((|alt_malloc_#res.base| (_ BitVec 32))) (and (= (store |c_old(#length)| |alt_malloc_#res.base| (select |c_#length| |alt_malloc_#res.base|)) |c_#length|) (= (_ bv0 1) (select |c_old(#valid)| |alt_malloc_#res.base|)))) is different from true [2023-11-29 07:09:44,140 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-29 07:09:44,141 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 9 [2023-11-29 07:09:44,154 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2023-11-29 07:09:44,155 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13 [2023-11-29 07:09:44,167 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 07:09:44,167 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 07:09:44,167 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 07:09:44,168 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1743741406] [2023-11-29 07:09:44,168 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1743741406] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 07:09:44,168 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 07:09:44,168 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 07:09:44,168 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [757658627] [2023-11-29 07:09:44,168 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 07:09:44,168 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 07:09:44,168 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 07:09:44,169 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 07:09:44,169 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=13, Unknown=1, NotChecked=6, Total=30 [2023-11-29 07:09:44,169 INFO L87 Difference]: Start difference. First operand 1572 states and 2182 transitions. Second operand has 6 states, 4 states have (on average 15.0) internal successors, (60), 5 states have internal predecessors, (60), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-29 07:09:51,096 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:09:51,097 INFO L93 Difference]: Finished difference Result 2515 states and 3479 transitions. [2023-11-29 07:09:51,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 07:09:51,097 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 4 states have (on average 15.0) internal successors, (60), 5 states have internal predecessors, (60), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 64 [2023-11-29 07:09:51,097 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:09:51,101 INFO L225 Difference]: With dead ends: 2515 [2023-11-29 07:09:51,102 INFO L226 Difference]: Without dead ends: 2515 [2023-11-29 07:09:51,102 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=13, Unknown=1, NotChecked=6, Total=30 [2023-11-29 07:09:51,102 INFO L413 NwaCegarLoop]: 965 mSDtfsCounter, 835 mSDsluCounter, 1026 mSDsCounter, 0 mSdLazyCounter, 3079 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 838 SdHoareTripleChecker+Valid, 1991 SdHoareTripleChecker+Invalid, 4917 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 3079 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 1811 IncrementalHoareTripleChecker+Unchecked, 6.8s IncrementalHoareTripleChecker+Time [2023-11-29 07:09:51,103 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [838 Valid, 1991 Invalid, 4917 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 3079 Invalid, 0 Unknown, 1811 Unchecked, 6.8s Time] [2023-11-29 07:09:51,105 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2515 states. [2023-11-29 07:09:51,125 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2515 to 1568. [2023-11-29 07:09:51,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1568 states, 1035 states have (on average 2.026086956521739) internal successors, (2097), 1526 states have internal predecessors, (2097), 38 states have call successors, (38), 14 states have call predecessors, (38), 12 states have return successors, (35), 30 states have call predecessors, (35), 34 states have call successors, (35) [2023-11-29 07:09:51,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1568 states to 1568 states and 2170 transitions. [2023-11-29 07:09:51,132 INFO L78 Accepts]: Start accepts. Automaton has 1568 states and 2170 transitions. Word has length 64 [2023-11-29 07:09:51,132 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:09:51,132 INFO L495 AbstractCegarLoop]: Abstraction has 1568 states and 2170 transitions. [2023-11-29 07:09:51,132 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 4 states have (on average 15.0) internal successors, (60), 5 states have internal predecessors, (60), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-29 07:09:51,133 INFO L276 IsEmpty]: Start isEmpty. Operand 1568 states and 2170 transitions. [2023-11-29 07:09:51,133 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2023-11-29 07:09:51,133 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:09:51,134 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, 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 07:09:51,140 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5e2f426-a57a-4666-aeaf-099abc5557cc/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 (20)] Forceful destruction successful, exit code 0 [2023-11-29 07:09:51,336 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5e2f426-a57a-4666-aeaf-099abc5557cc/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 07:09:51,336 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting alt_bzeroErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, alt_mallocErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, alt_mallocErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 628 more)] === [2023-11-29 07:09:51,336 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:09:51,336 INFO L85 PathProgramCache]: Analyzing trace with hash -1620798592, now seen corresponding path program 1 times [2023-11-29 07:09:51,337 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 07:09:51,337 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [883843757] [2023-11-29 07:09:51,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:09:51,337 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 07:09:51,337 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5e2f426-a57a-4666-aeaf-099abc5557cc/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 07:09:51,338 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5e2f426-a57a-4666-aeaf-099abc5557cc/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 07:09:51,339 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5e2f426-a57a-4666-aeaf-099abc5557cc/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 (21)] Waiting until timeout for monitored process [2023-11-29 07:09:51,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:09:51,642 INFO L262 TraceCheckSpWp]: Trace formula consists of 376 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-29 07:09:51,645 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:09:51,651 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2023-11-29 07:09:51,673 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 19 treesize of output 1 [2023-11-29 07:09:51,693 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2023-11-29 07:09:51,734 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 07:09:51,734 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 07:09:51,734 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 07:09:51,735 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [883843757] [2023-11-29 07:09:51,735 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [883843757] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 07:09:51,735 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 07:09:51,735 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-29 07:09:51,735 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1446675674] [2023-11-29 07:09:51,735 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 07:09:51,735 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 07:09:51,735 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 07:09:51,736 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 07:09:51,736 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-11-29 07:09:51,736 INFO L87 Difference]: Start difference. First operand 1568 states and 2170 transitions. Second operand has 8 states, 5 states have (on average 13.0) internal successors, (65), 6 states have internal predecessors, (65), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 07:09:56,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:09:56,845 INFO L93 Difference]: Finished difference Result 1579 states and 2182 transitions. [2023-11-29 07:09:56,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-29 07:09:56,845 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 5 states have (on average 13.0) internal successors, (65), 6 states have internal predecessors, (65), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 70 [2023-11-29 07:09:56,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:09:56,848 INFO L225 Difference]: With dead ends: 1579 [2023-11-29 07:09:56,848 INFO L226 Difference]: Without dead ends: 1579 [2023-11-29 07:09:56,848 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2023-11-29 07:09:56,849 INFO L413 NwaCegarLoop]: 917 mSDtfsCounter, 14 mSDsluCounter, 3059 mSDsCounter, 0 mSdLazyCounter, 3263 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 3976 SdHoareTripleChecker+Invalid, 3265 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 3263 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2023-11-29 07:09:56,849 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 3976 Invalid, 3265 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 3263 Invalid, 0 Unknown, 0 Unchecked, 5.0s Time] [2023-11-29 07:09:56,852 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1579 states. [2023-11-29 07:09:56,875 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1579 to 1578. [2023-11-29 07:09:56,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1578 states, 1043 states have (on average 2.022051773729626) internal successors, (2109), 1534 states have internal predecessors, (2109), 38 states have call successors, (38), 16 states have call predecessors, (38), 14 states have return successors, (35), 30 states have call predecessors, (35), 34 states have call successors, (35) [2023-11-29 07:09:56,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1578 states to 1578 states and 2182 transitions. [2023-11-29 07:09:56,881 INFO L78 Accepts]: Start accepts. Automaton has 1578 states and 2182 transitions. Word has length 70 [2023-11-29 07:09:56,881 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:09:56,881 INFO L495 AbstractCegarLoop]: Abstraction has 1578 states and 2182 transitions. [2023-11-29 07:09:56,882 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 5 states have (on average 13.0) internal successors, (65), 6 states have internal predecessors, (65), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 07:09:56,882 INFO L276 IsEmpty]: Start isEmpty. Operand 1578 states and 2182 transitions. [2023-11-29 07:09:56,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2023-11-29 07:09:56,882 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:09:56,883 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, 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 07:09:56,890 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5e2f426-a57a-4666-aeaf-099abc5557cc/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 (21)] Ended with exit code 0 [2023-11-29 07:09:57,083 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5e2f426-a57a-4666-aeaf-099abc5557cc/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 07:09:57,083 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting alt_bzeroErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, alt_mallocErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, alt_mallocErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 628 more)] === [2023-11-29 07:09:57,084 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:09:57,084 INFO L85 PathProgramCache]: Analyzing trace with hash 1294851276, now seen corresponding path program 1 times [2023-11-29 07:09:57,084 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 07:09:57,085 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [181555129] [2023-11-29 07:09:57,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:09:57,085 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 07:09:57,085 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5e2f426-a57a-4666-aeaf-099abc5557cc/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 07:09:57,086 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5e2f426-a57a-4666-aeaf-099abc5557cc/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 07:09:57,087 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5e2f426-a57a-4666-aeaf-099abc5557cc/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 (22)] Waiting until timeout for monitored process [2023-11-29 07:09:57,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:09:57,493 INFO L262 TraceCheckSpWp]: Trace formula consists of 377 conjuncts, 24 conjunts are in the unsatisfiable core [2023-11-29 07:09:57,497 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:09:57,517 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-11-29 07:09:57,556 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 13 treesize of output 9 [2023-11-29 07:09:57,565 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 19 treesize of output 1 [2023-11-29 07:09:57,607 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2023-11-29 07:09:57,691 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 07:09:57,692 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 07:09:57,692 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 07:09:57,692 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [181555129] [2023-11-29 07:09:57,692 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [181555129] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 07:09:57,692 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 07:09:57,692 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-29 07:09:57,692 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [814635435] [2023-11-29 07:09:57,692 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 07:09:57,693 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-29 07:09:57,693 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 07:09:57,693 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-29 07:09:57,693 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-11-29 07:09:57,693 INFO L87 Difference]: Start difference. First operand 1578 states and 2182 transitions. Second operand has 9 states, 6 states have (on average 11.0) internal successors, (66), 7 states have internal predecessors, (66), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-29 07:10:05,058 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:10:05,059 INFO L93 Difference]: Finished difference Result 1578 states and 2180 transitions. [2023-11-29 07:10:05,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-29 07:10:05,061 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 6 states have (on average 11.0) internal successors, (66), 7 states have internal predecessors, (66), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 71 [2023-11-29 07:10:05,061 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:10:05,063 INFO L225 Difference]: With dead ends: 1578 [2023-11-29 07:10:05,063 INFO L226 Difference]: Without dead ends: 1578 [2023-11-29 07:10:05,063 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2023-11-29 07:10:05,064 INFO L413 NwaCegarLoop]: 915 mSDtfsCounter, 12 mSDsluCounter, 3814 mSDsCounter, 0 mSdLazyCounter, 3542 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 4729 SdHoareTripleChecker+Invalid, 3543 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3542 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.2s IncrementalHoareTripleChecker+Time [2023-11-29 07:10:05,064 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 4729 Invalid, 3543 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3542 Invalid, 0 Unknown, 0 Unchecked, 7.2s Time] [2023-11-29 07:10:05,067 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1578 states. [2023-11-29 07:10:05,085 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1578 to 1578. [2023-11-29 07:10:05,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1578 states, 1043 states have (on average 2.0201342281879193) internal successors, (2107), 1534 states have internal predecessors, (2107), 38 states have call successors, (38), 16 states have call predecessors, (38), 14 states have return successors, (35), 30 states have call predecessors, (35), 34 states have call successors, (35) [2023-11-29 07:10:05,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1578 states to 1578 states and 2180 transitions. [2023-11-29 07:10:05,091 INFO L78 Accepts]: Start accepts. Automaton has 1578 states and 2180 transitions. Word has length 71 [2023-11-29 07:10:05,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:10:05,091 INFO L495 AbstractCegarLoop]: Abstraction has 1578 states and 2180 transitions. [2023-11-29 07:10:05,092 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 6 states have (on average 11.0) internal successors, (66), 7 states have internal predecessors, (66), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-29 07:10:05,092 INFO L276 IsEmpty]: Start isEmpty. Operand 1578 states and 2180 transitions. [2023-11-29 07:10:05,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2023-11-29 07:10:05,092 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:10:05,093 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, 1, 1, 1, 1, 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 07:10:05,100 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5e2f426-a57a-4666-aeaf-099abc5557cc/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 (22)] Ended with exit code 0 [2023-11-29 07:10:05,293 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5e2f426-a57a-4666-aeaf-099abc5557cc/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 07:10:05,293 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr78REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, alt_mallocErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, alt_mallocErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 628 more)] === [2023-11-29 07:10:05,294 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:10:05,294 INFO L85 PathProgramCache]: Analyzing trace with hash 591418728, now seen corresponding path program 1 times [2023-11-29 07:10:05,294 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 07:10:05,294 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [723914167] [2023-11-29 07:10:05,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:10:05,294 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 07:10:05,295 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5e2f426-a57a-4666-aeaf-099abc5557cc/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 07:10:05,295 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5e2f426-a57a-4666-aeaf-099abc5557cc/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 07:10:05,296 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5e2f426-a57a-4666-aeaf-099abc5557cc/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 (23)] Waiting until timeout for monitored process [2023-11-29 07:10:05,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:10:05,614 INFO L262 TraceCheckSpWp]: Trace formula consists of 393 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 07:10:05,616 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:10:05,649 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 07:10:05,650 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 07:10:05,650 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 07:10:05,650 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [723914167] [2023-11-29 07:10:05,650 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [723914167] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 07:10:05,650 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 07:10:05,650 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 07:10:05,650 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1520957115] [2023-11-29 07:10:05,650 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 07:10:05,651 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 07:10:05,651 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 07:10:05,651 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 07:10:05,651 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-29 07:10:05,652 INFO L87 Difference]: Start difference. First operand 1578 states and 2180 transitions. Second operand has 5 states, 4 states have (on average 17.5) internal successors, (70), 5 states have internal predecessors, (70), 1 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-29 07:10:07,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:10:07,155 INFO L93 Difference]: Finished difference Result 1586 states and 2190 transitions. [2023-11-29 07:10:07,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 07:10:07,157 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 17.5) internal successors, (70), 5 states have internal predecessors, (70), 1 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 76 [2023-11-29 07:10:07,158 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:10:07,160 INFO L225 Difference]: With dead ends: 1586 [2023-11-29 07:10:07,161 INFO L226 Difference]: Without dead ends: 1584 [2023-11-29 07:10:07,161 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 72 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-29 07:10:07,161 INFO L413 NwaCegarLoop]: 921 mSDtfsCounter, 4 mSDsluCounter, 2749 mSDsCounter, 0 mSdLazyCounter, 467 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 3670 SdHoareTripleChecker+Invalid, 468 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 467 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2023-11-29 07:10:07,162 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 3670 Invalid, 468 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 467 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2023-11-29 07:10:07,164 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1584 states. [2023-11-29 07:10:07,186 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1584 to 1584. [2023-11-29 07:10:07,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1584 states, 1047 states have (on average 2.018147086914995) internal successors, (2113), 1540 states have internal predecessors, (2113), 38 states have call successors, (38), 16 states have call predecessors, (38), 16 states have return successors, (37), 30 states have call predecessors, (37), 34 states have call successors, (37) [2023-11-29 07:10:07,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1584 states to 1584 states and 2188 transitions. [2023-11-29 07:10:07,191 INFO L78 Accepts]: Start accepts. Automaton has 1584 states and 2188 transitions. Word has length 76 [2023-11-29 07:10:07,191 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:10:07,191 INFO L495 AbstractCegarLoop]: Abstraction has 1584 states and 2188 transitions. [2023-11-29 07:10:07,192 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 17.5) internal successors, (70), 5 states have internal predecessors, (70), 1 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-29 07:10:07,192 INFO L276 IsEmpty]: Start isEmpty. Operand 1584 states and 2188 transitions. [2023-11-29 07:10:07,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2023-11-29 07:10:07,192 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:10:07,192 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, 1, 1, 1, 1, 1, 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 07:10:07,198 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5e2f426-a57a-4666-aeaf-099abc5557cc/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 (23)] Ended with exit code 0 [2023-11-29 07:10:07,393 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5e2f426-a57a-4666-aeaf-099abc5557cc/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 07:10:07,393 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr78REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, alt_mallocErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, alt_mallocErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 628 more)] === [2023-11-29 07:10:07,393 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:10:07,394 INFO L85 PathProgramCache]: Analyzing trace with hash -128198608, now seen corresponding path program 1 times [2023-11-29 07:10:07,394 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 07:10:07,394 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [566196423] [2023-11-29 07:10:07,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:10:07,394 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 07:10:07,394 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5e2f426-a57a-4666-aeaf-099abc5557cc/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 07:10:07,395 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5e2f426-a57a-4666-aeaf-099abc5557cc/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 07:10:07,396 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5e2f426-a57a-4666-aeaf-099abc5557cc/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 (24)] Waiting until timeout for monitored process [2023-11-29 07:10:07,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:10:07,713 INFO L262 TraceCheckSpWp]: Trace formula consists of 404 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-29 07:10:07,715 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:10:07,764 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 07:10:07,764 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 07:10:07,892 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 07:10:07,893 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 07:10:07,893 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [566196423] [2023-11-29 07:10:07,893 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [566196423] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 07:10:07,893 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 07:10:07,893 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2023-11-29 07:10:07,893 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [614280974] [2023-11-29 07:10:07,893 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 07:10:07,894 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 07:10:07,894 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 07:10:07,894 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 07:10:07,894 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2023-11-29 07:10:07,895 INFO L87 Difference]: Start difference. First operand 1584 states and 2188 transitions. Second operand has 10 states, 8 states have (on average 9.5) internal successors, (76), 10 states have internal predecessors, (76), 1 states have call successors, (3), 1 states have call predecessors, (3), 3 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-29 07:10:10,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:10:10,206 INFO L93 Difference]: Finished difference Result 1598 states and 2206 transitions. [2023-11-29 07:10:10,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-29 07:10:10,208 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 8 states have (on average 9.5) internal successors, (76), 10 states have internal predecessors, (76), 1 states have call successors, (3), 1 states have call predecessors, (3), 3 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) Word has length 77 [2023-11-29 07:10:10,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:10:10,210 INFO L225 Difference]: With dead ends: 1598 [2023-11-29 07:10:10,211 INFO L226 Difference]: Without dead ends: 1594 [2023-11-29 07:10:10,211 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 157 GetRequests, 144 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=80, Invalid=130, Unknown=0, NotChecked=0, Total=210 [2023-11-29 07:10:10,211 INFO L413 NwaCegarLoop]: 921 mSDtfsCounter, 14 mSDsluCounter, 4579 mSDsCounter, 0 mSdLazyCounter, 726 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 5500 SdHoareTripleChecker+Invalid, 731 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 726 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2023-11-29 07:10:10,212 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 5500 Invalid, 731 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 726 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2023-11-29 07:10:10,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1594 states. [2023-11-29 07:10:10,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1594 to 1592. [2023-11-29 07:10:10,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1592 states, 1055 states have (on average 2.0123222748815164) internal successors, (2123), 1548 states have internal predecessors, (2123), 38 states have call successors, (38), 16 states have call predecessors, (38), 16 states have return successors, (37), 30 states have call predecessors, (37), 34 states have call successors, (37) [2023-11-29 07:10:10,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1592 states to 1592 states and 2198 transitions. [2023-11-29 07:10:10,237 INFO L78 Accepts]: Start accepts. Automaton has 1592 states and 2198 transitions. Word has length 77 [2023-11-29 07:10:10,237 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:10:10,238 INFO L495 AbstractCegarLoop]: Abstraction has 1592 states and 2198 transitions. [2023-11-29 07:10:10,238 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 8 states have (on average 9.5) internal successors, (76), 10 states have internal predecessors, (76), 1 states have call successors, (3), 1 states have call predecessors, (3), 3 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-29 07:10:10,238 INFO L276 IsEmpty]: Start isEmpty. Operand 1592 states and 2198 transitions. [2023-11-29 07:10:10,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2023-11-29 07:10:10,239 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:10:10,239 INFO L195 NwaCegarLoop]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:10:10,244 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5e2f426-a57a-4666-aeaf-099abc5557cc/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 (24)] Forceful destruction successful, exit code 0 [2023-11-29 07:10:10,439 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5e2f426-a57a-4666-aeaf-099abc5557cc/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 07:10:10,439 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr78REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, alt_mallocErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, alt_mallocErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 628 more)] === [2023-11-29 07:10:10,440 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:10:10,440 INFO L85 PathProgramCache]: Analyzing trace with hash 1332660072, now seen corresponding path program 2 times [2023-11-29 07:10:10,440 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 07:10:10,440 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [194473549] [2023-11-29 07:10:10,440 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 07:10:10,440 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 07:10:10,440 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5e2f426-a57a-4666-aeaf-099abc5557cc/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 07:10:10,441 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5e2f426-a57a-4666-aeaf-099abc5557cc/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 07:10:10,442 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5e2f426-a57a-4666-aeaf-099abc5557cc/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 (25)] Waiting until timeout for monitored process [2023-11-29 07:10:10,963 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 07:10:10,963 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 07:10:10,983 INFO L262 TraceCheckSpWp]: Trace formula consists of 437 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-29 07:10:10,986 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:10:11,100 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 07:10:11,100 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 07:10:11,425 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 07:10:11,425 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 07:10:11,425 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [194473549] [2023-11-29 07:10:11,426 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [194473549] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 07:10:11,426 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 07:10:11,426 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 16 [2023-11-29 07:10:11,426 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [323989281] [2023-11-29 07:10:11,426 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 07:10:11,426 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-11-29 07:10:11,426 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 07:10:11,427 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-11-29 07:10:11,427 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=162, Unknown=0, NotChecked=0, Total=240 [2023-11-29 07:10:11,427 INFO L87 Difference]: Start difference. First operand 1592 states and 2198 transitions. Second operand has 16 states, 14 states have (on average 5.857142857142857) internal successors, (82), 16 states have internal predecessors, (82), 1 states have call successors, (3), 1 states have call predecessors, (3), 3 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-29 07:10:14,807 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:10:14,808 INFO L93 Difference]: Finished difference Result 1616 states and 2236 transitions. [2023-11-29 07:10:14,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-11-29 07:10:14,810 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 14 states have (on average 5.857142857142857) internal successors, (82), 16 states have internal predecessors, (82), 1 states have call successors, (3), 1 states have call predecessors, (3), 3 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) Word has length 80 [2023-11-29 07:10:14,810 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:10:14,813 INFO L225 Difference]: With dead ends: 1616 [2023-11-29 07:10:14,813 INFO L226 Difference]: Without dead ends: 1612 [2023-11-29 07:10:14,813 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 169 GetRequests, 144 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=248, Invalid=454, Unknown=0, NotChecked=0, Total=702 [2023-11-29 07:10:14,814 INFO L413 NwaCegarLoop]: 921 mSDtfsCounter, 36 mSDsluCounter, 5501 mSDsCounter, 0 mSdLazyCounter, 944 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 6422 SdHoareTripleChecker+Invalid, 956 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 944 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2023-11-29 07:10:14,814 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 6422 Invalid, 956 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 944 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2023-11-29 07:10:14,816 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1612 states. [2023-11-29 07:10:14,829 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1612 to 1610. [2023-11-29 07:10:14,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1610 states, 1073 states have (on average 2.000931966449208) internal successors, (2147), 1566 states have internal predecessors, (2147), 38 states have call successors, (38), 16 states have call predecessors, (38), 16 states have return successors, (37), 30 states have call predecessors, (37), 34 states have call successors, (37) [2023-11-29 07:10:14,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1610 states to 1610 states and 2222 transitions. [2023-11-29 07:10:14,833 INFO L78 Accepts]: Start accepts. Automaton has 1610 states and 2222 transitions. Word has length 80 [2023-11-29 07:10:14,833 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:10:14,833 INFO L495 AbstractCegarLoop]: Abstraction has 1610 states and 2222 transitions. [2023-11-29 07:10:14,833 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 14 states have (on average 5.857142857142857) internal successors, (82), 16 states have internal predecessors, (82), 1 states have call successors, (3), 1 states have call predecessors, (3), 3 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-29 07:10:14,833 INFO L276 IsEmpty]: Start isEmpty. Operand 1610 states and 2222 transitions. [2023-11-29 07:10:14,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2023-11-29 07:10:14,834 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:10:14,834 INFO L195 NwaCegarLoop]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:10:14,843 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5e2f426-a57a-4666-aeaf-099abc5557cc/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 (25)] Ended with exit code 0 [2023-11-29 07:10:15,035 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5e2f426-a57a-4666-aeaf-099abc5557cc/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 07:10:15,035 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr78REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, alt_mallocErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, alt_mallocErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 628 more)] === [2023-11-29 07:10:15,035 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:10:15,036 INFO L85 PathProgramCache]: Analyzing trace with hash -115633560, now seen corresponding path program 3 times [2023-11-29 07:10:15,036 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 07:10:15,036 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [195745284] [2023-11-29 07:10:15,036 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-29 07:10:15,037 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 07:10:15,037 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5e2f426-a57a-4666-aeaf-099abc5557cc/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 07:10:15,037 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5e2f426-a57a-4666-aeaf-099abc5557cc/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 07:10:15,038 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5e2f426-a57a-4666-aeaf-099abc5557cc/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 (26)] Waiting until timeout for monitored process [2023-11-29 07:10:15,836 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2023-11-29 07:10:15,836 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 07:10:15,856 INFO L262 TraceCheckSpWp]: Trace formula consists of 503 conjuncts, 16 conjunts are in the unsatisfiable core [2023-11-29 07:10:15,859 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:10:16,109 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 07:10:16,110 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 07:10:17,127 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 07:10:17,128 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 07:10:17,128 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [195745284] [2023-11-29 07:10:17,128 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [195745284] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 07:10:17,128 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 07:10:17,128 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15] total 28 [2023-11-29 07:10:17,128 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1459445061] [2023-11-29 07:10:17,128 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 07:10:17,129 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2023-11-29 07:10:17,129 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 07:10:17,130 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2023-11-29 07:10:17,130 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=222, Invalid=534, Unknown=0, NotChecked=0, Total=756 [2023-11-29 07:10:17,130 INFO L87 Difference]: Start difference. First operand 1610 states and 2222 transitions. Second operand has 28 states, 26 states have (on average 3.6153846153846154) internal successors, (94), 28 states have internal predecessors, (94), 1 states have call successors, (3), 1 states have call predecessors, (3), 3 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-29 07:10:27,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:10:27,204 INFO L93 Difference]: Finished difference Result 1652 states and 2294 transitions. [2023-11-29 07:10:27,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2023-11-29 07:10:27,205 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 26 states have (on average 3.6153846153846154) internal successors, (94), 28 states have internal predecessors, (94), 1 states have call successors, (3), 1 states have call predecessors, (3), 3 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) Word has length 86 [2023-11-29 07:10:27,205 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:10:27,208 INFO L225 Difference]: With dead ends: 1652 [2023-11-29 07:10:27,208 INFO L226 Difference]: Without dead ends: 1646 [2023-11-29 07:10:27,209 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 193 GetRequests, 144 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 285 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=854, Invalid=1696, Unknown=0, NotChecked=0, Total=2550 [2023-11-29 07:10:27,210 INFO L413 NwaCegarLoop]: 921 mSDtfsCounter, 44 mSDsluCounter, 12832 mSDsCounter, 0 mSdLazyCounter, 2112 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 13753 SdHoareTripleChecker+Invalid, 2123 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 2112 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.1s IncrementalHoareTripleChecker+Time [2023-11-29 07:10:27,210 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 13753 Invalid, 2123 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [11 Valid, 2112 Invalid, 0 Unknown, 0 Unchecked, 8.1s Time] [2023-11-29 07:10:27,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1646 states. [2023-11-29 07:10:27,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1646 to 1646. [2023-11-29 07:10:27,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1646 states, 1109 states have (on average 1.9774571686203788) internal successors, (2193), 1602 states have internal predecessors, (2193), 38 states have call successors, (38), 16 states have call predecessors, (38), 16 states have return successors, (37), 30 states have call predecessors, (37), 34 states have call successors, (37) [2023-11-29 07:10:27,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1646 states to 1646 states and 2268 transitions. [2023-11-29 07:10:27,242 INFO L78 Accepts]: Start accepts. Automaton has 1646 states and 2268 transitions. Word has length 86 [2023-11-29 07:10:27,242 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:10:27,242 INFO L495 AbstractCegarLoop]: Abstraction has 1646 states and 2268 transitions. [2023-11-29 07:10:27,242 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 26 states have (on average 3.6153846153846154) internal successors, (94), 28 states have internal predecessors, (94), 1 states have call successors, (3), 1 states have call predecessors, (3), 3 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-29 07:10:27,243 INFO L276 IsEmpty]: Start isEmpty. Operand 1646 states and 2268 transitions. [2023-11-29 07:10:27,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2023-11-29 07:10:27,244 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:10:27,244 INFO L195 NwaCegarLoop]: trace histogram [22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:10:27,252 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5e2f426-a57a-4666-aeaf-099abc5557cc/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 (26)] Forceful destruction successful, exit code 0 [2023-11-29 07:10:27,444 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5e2f426-a57a-4666-aeaf-099abc5557cc/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 07:10:27,444 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr78REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, alt_mallocErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, alt_mallocErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 628 more)] === [2023-11-29 07:10:27,445 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:10:27,445 INFO L85 PathProgramCache]: Analyzing trace with hash -1332189080, now seen corresponding path program 4 times [2023-11-29 07:10:27,445 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 07:10:27,445 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1435004624] [2023-11-29 07:10:27,445 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-11-29 07:10:27,445 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 07:10:27,446 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5e2f426-a57a-4666-aeaf-099abc5557cc/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 07:10:27,446 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5e2f426-a57a-4666-aeaf-099abc5557cc/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 07:10:27,447 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5e2f426-a57a-4666-aeaf-099abc5557cc/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 (27)] Waiting until timeout for monitored process [2023-11-29 07:10:27,859 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-11-29 07:10:27,860 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 07:10:27,881 INFO L262 TraceCheckSpWp]: Trace formula consists of 635 conjuncts, 27 conjunts are in the unsatisfiable core [2023-11-29 07:10:27,886 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:10:28,573 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 0 proven. 253 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 07:10:28,574 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 07:10:30,933 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 0 proven. 253 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 07:10:30,933 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 07:10:30,933 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1435004624] [2023-11-29 07:10:30,933 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1435004624] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 07:10:30,933 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 07:10:30,934 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [27, 27] total 52 [2023-11-29 07:10:30,934 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1197106740] [2023-11-29 07:10:30,934 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 07:10:30,934 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 52 states [2023-11-29 07:10:30,935 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 07:10:30,936 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 52 interpolants. [2023-11-29 07:10:30,937 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=725, Invalid=1927, Unknown=0, NotChecked=0, Total=2652 [2023-11-29 07:10:30,937 INFO L87 Difference]: Start difference. First operand 1646 states and 2268 transitions. Second operand has 52 states, 50 states have (on average 2.36) internal successors, (118), 52 states have internal predecessors, (118), 1 states have call successors, (3), 1 states have call predecessors, (3), 3 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-29 07:10:50,740 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:10:50,740 INFO L93 Difference]: Finished difference Result 1720 states and 2406 transitions. [2023-11-29 07:10:50,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 73 states. [2023-11-29 07:10:50,743 INFO L78 Accepts]: Start accepts. Automaton has has 52 states, 50 states have (on average 2.36) internal successors, (118), 52 states have internal predecessors, (118), 1 states have call successors, (3), 1 states have call predecessors, (3), 3 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) Word has length 98 [2023-11-29 07:10:50,743 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:10:50,748 INFO L225 Difference]: With dead ends: 1720 [2023-11-29 07:10:50,748 INFO L226 Difference]: Without dead ends: 1716 [2023-11-29 07:10:50,751 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 239 GetRequests, 144 SyntacticMatches, 0 SemanticMatches, 95 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1126 ImplicationChecksByTransitivity, 10.6s TimeCoverageRelationStatistics Valid=2955, Invalid=6357, Unknown=0, NotChecked=0, Total=9312 [2023-11-29 07:10:50,752 INFO L413 NwaCegarLoop]: 921 mSDtfsCounter, 90 mSDsluCounter, 22921 mSDsCounter, 0 mSdLazyCounter, 4231 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 23842 SdHoareTripleChecker+Invalid, 4275 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 4231 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.5s IncrementalHoareTripleChecker+Time [2023-11-29 07:10:50,752 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [90 Valid, 23842 Invalid, 4275 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [44 Valid, 4231 Invalid, 0 Unknown, 0 Unchecked, 11.5s Time] [2023-11-29 07:10:50,754 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1716 states. [2023-11-29 07:10:50,771 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1716 to 1714. [2023-11-29 07:10:50,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1714 states, 1177 states have (on average 1.941376380628717) internal successors, (2285), 1670 states have internal predecessors, (2285), 38 states have call successors, (38), 16 states have call predecessors, (38), 16 states have return successors, (37), 30 states have call predecessors, (37), 34 states have call successors, (37) [2023-11-29 07:10:50,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1714 states to 1714 states and 2360 transitions. [2023-11-29 07:10:50,777 INFO L78 Accepts]: Start accepts. Automaton has 1714 states and 2360 transitions. Word has length 98 [2023-11-29 07:10:50,777 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:10:50,777 INFO L495 AbstractCegarLoop]: Abstraction has 1714 states and 2360 transitions. [2023-11-29 07:10:50,777 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 52 states, 50 states have (on average 2.36) internal successors, (118), 52 states have internal predecessors, (118), 1 states have call successors, (3), 1 states have call predecessors, (3), 3 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-29 07:10:50,777 INFO L276 IsEmpty]: Start isEmpty. Operand 1714 states and 2360 transitions. [2023-11-29 07:10:50,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2023-11-29 07:10:50,779 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:10:50,779 INFO L195 NwaCegarLoop]: trace histogram [44, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:10:50,786 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5e2f426-a57a-4666-aeaf-099abc5557cc/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 (27)] Ended with exit code 0 [2023-11-29 07:10:50,979 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5e2f426-a57a-4666-aeaf-099abc5557cc/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 07:10:50,979 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr78REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, alt_mallocErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, alt_mallocErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 628 more)] === [2023-11-29 07:10:50,980 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:10:50,980 INFO L85 PathProgramCache]: Analyzing trace with hash -632276120, now seen corresponding path program 5 times [2023-11-29 07:10:50,980 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 07:10:50,980 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1530627964] [2023-11-29 07:10:50,980 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2023-11-29 07:10:50,981 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 07:10:50,981 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5e2f426-a57a-4666-aeaf-099abc5557cc/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 07:10:50,981 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5e2f426-a57a-4666-aeaf-099abc5557cc/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 07:10:50,982 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5e2f426-a57a-4666-aeaf-099abc5557cc/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 (28)] Waiting until timeout for monitored process [2023-11-29 07:10:52,627 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 23 check-sat command(s) [2023-11-29 07:10:52,627 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 07:10:52,661 INFO L262 TraceCheckSpWp]: Trace formula consists of 877 conjuncts, 64 conjunts are in the unsatisfiable core [2023-11-29 07:10:52,670 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:10:52,675 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2023-11-29 07:10:52,811 INFO L349 Elim1Store]: treesize reduction 22, result has 35.3 percent of original size [2023-11-29 07:10:52,812 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 19 treesize of output 27 [2023-11-29 07:10:52,849 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2023-11-29 07:10:52,962 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 12 [2023-11-29 07:10:54,190 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2023-11-29 07:10:54,190 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 44 treesize of output 43 [2023-11-29 07:10:54,269 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 15 [2023-11-29 07:10:54,317 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 0 proven. 87 refuted. 0 times theorem prover too weak. 903 trivial. 0 not checked. [2023-11-29 07:10:54,317 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 07:10:58,838 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 07:10:58,838 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1530627964] [2023-11-29 07:10:58,838 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1530627964] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 07:10:58,838 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1321314212] [2023-11-29 07:10:58,839 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2023-11-29 07:10:58,839 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-29 07:10:58,839 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5e2f426-a57a-4666-aeaf-099abc5557cc/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 [2023-11-29 07:10:58,840 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5e2f426-a57a-4666-aeaf-099abc5557cc/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-29 07:10:58,841 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5e2f426-a57a-4666-aeaf-099abc5557cc/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 --incremental --print-success --lang smt (29)] Waiting until timeout for monitored process [2023-11-29 07:12:00,705 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 23 check-sat command(s) [2023-11-29 07:12:00,705 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 07:12:00,948 INFO L262 TraceCheckSpWp]: Trace formula consists of 877 conjuncts, 68 conjunts are in the unsatisfiable core [2023-11-29 07:12:00,957 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:12:00,964 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2023-11-29 07:12:01,325 INFO L349 Elim1Store]: treesize reduction 22, result has 35.3 percent of original size [2023-11-29 07:12:01,325 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 19 treesize of output 27 [2023-11-29 07:12:01,405 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2023-11-29 07:12:01,555 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 12 [2023-11-29 07:12:02,808 INFO L349 Elim1Store]: treesize reduction 19, result has 20.8 percent of original size [2023-11-29 07:12:02,808 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 36 treesize of output 35 [2023-11-29 07:12:02,919 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 15 [2023-11-29 07:12:02,930 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 0 proven. 87 refuted. 0 times theorem prover too weak. 903 trivial. 0 not checked. [2023-11-29 07:12:02,931 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 07:12:07,525 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1321314212] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 07:12:07,525 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 07:12:07,525 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 16 [2023-11-29 07:12:07,525 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1021984703] [2023-11-29 07:12:07,525 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 07:12:07,526 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2023-11-29 07:12:07,526 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 07:12:07,526 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2023-11-29 07:12:07,527 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=311, Unknown=4, NotChecked=0, Total=380 [2023-11-29 07:12:07,527 INFO L87 Difference]: Start difference. First operand 1714 states and 2360 transitions. Second operand has 17 states, 13 states have (on average 9.846153846153847) internal successors, (128), 14 states have internal predecessors, (128), 5 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-11-29 07:12:12,497 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 07:12:16,507 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 07:12:20,577 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 07:12:24,582 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 07:12:39,554 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:12:39,554 INFO L93 Difference]: Finished difference Result 2095 states and 2864 transitions. [2023-11-29 07:12:39,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-29 07:12:39,555 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 13 states have (on average 9.846153846153847) internal successors, (128), 14 states have internal predecessors, (128), 5 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Word has length 120 [2023-11-29 07:12:39,555 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:12:39,560 INFO L225 Difference]: With dead ends: 2095 [2023-11-29 07:12:39,560 INFO L226 Difference]: Without dead ends: 2095 [2023-11-29 07:12:39,561 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 251 GetRequests, 224 SyntacticMatches, 4 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 153 ImplicationChecksByTransitivity, 9.0s TimeCoverageRelationStatistics Valid=100, Invalid=496, Unknown=4, NotChecked=0, Total=600 [2023-11-29 07:12:39,562 INFO L413 NwaCegarLoop]: 568 mSDtfsCounter, 735 mSDsluCounter, 4511 mSDsCounter, 0 mSdLazyCounter, 6158 mSolverCounterSat, 27 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 30.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 737 SdHoareTripleChecker+Valid, 5079 SdHoareTripleChecker+Invalid, 6189 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 6158 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 31.6s IncrementalHoareTripleChecker+Time [2023-11-29 07:12:39,562 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [737 Valid, 5079 Invalid, 6189 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [27 Valid, 6158 Invalid, 4 Unknown, 0 Unchecked, 31.6s Time] [2023-11-29 07:12:39,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2095 states. [2023-11-29 07:12:39,585 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2095 to 1711. [2023-11-29 07:12:39,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1711 states, 1177 states have (on average 1.9362786745964315) internal successors, (2279), 1667 states have internal predecessors, (2279), 38 states have call successors, (38), 16 states have call predecessors, (38), 16 states have return successors, (37), 30 states have call predecessors, (37), 34 states have call successors, (37) [2023-11-29 07:12:39,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1711 states to 1711 states and 2354 transitions. [2023-11-29 07:12:39,591 INFO L78 Accepts]: Start accepts. Automaton has 1711 states and 2354 transitions. Word has length 120 [2023-11-29 07:12:39,591 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:12:39,591 INFO L495 AbstractCegarLoop]: Abstraction has 1711 states and 2354 transitions. [2023-11-29 07:12:39,591 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 13 states have (on average 9.846153846153847) internal successors, (128), 14 states have internal predecessors, (128), 5 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-11-29 07:12:39,592 INFO L276 IsEmpty]: Start isEmpty. Operand 1711 states and 2354 transitions. [2023-11-29 07:12:39,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2023-11-29 07:12:39,593 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:12:39,593 INFO L195 NwaCegarLoop]: trace histogram [44, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:12:39,603 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5e2f426-a57a-4666-aeaf-099abc5557cc/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 (28)] Ended with exit code 0 [2023-11-29 07:12:39,828 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5e2f426-a57a-4666-aeaf-099abc5557cc/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 --incremental --print-success --lang smt (29)] Ended with exit code 0 [2023-11-29 07:12:39,993 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5e2f426-a57a-4666-aeaf-099abc5557cc/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=3,29 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5e2f426-a57a-4666-aeaf-099abc5557cc/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 --incremental --print-success --lang smt [2023-11-29 07:12:39,994 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr79REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, alt_mallocErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, alt_mallocErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 628 more)] === [2023-11-29 07:12:39,994 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:12:39,994 INFO L85 PathProgramCache]: Analyzing trace with hash -632276119, now seen corresponding path program 1 times [2023-11-29 07:12:39,999 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 07:12:39,999 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [76366477] [2023-11-29 07:12:39,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:12:39,999 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 07:12:39,999 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5e2f426-a57a-4666-aeaf-099abc5557cc/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 07:12:40,000 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5e2f426-a57a-4666-aeaf-099abc5557cc/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 07:12:40,001 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5e2f426-a57a-4666-aeaf-099abc5557cc/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 (30)] Waiting until timeout for monitored process [2023-11-29 07:12:40,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:12:41,020 INFO L262 TraceCheckSpWp]: Trace formula consists of 877 conjuncts, 117 conjunts are in the unsatisfiable core [2023-11-29 07:12:41,031 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:12:41,035 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2023-11-29 07:12:41,187 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-11-29 07:12:41,230 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2023-11-29 07:12:41,230 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13 [2023-11-29 07:12:41,269 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2023-11-29 07:12:41,275 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 13 treesize of output 9 [2023-11-29 07:12:41,430 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 10 [2023-11-29 07:12:41,435 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2023-11-29 07:12:42,703 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2023-11-29 07:12:42,703 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 62 treesize of output 57 [2023-11-29 07:12:42,719 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 13 [2023-11-29 07:12:42,782 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 13 [2023-11-29 07:12:42,790 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2023-11-29 07:12:42,830 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 0 proven. 87 refuted. 0 times theorem prover too weak. 903 trivial. 0 not checked. [2023-11-29 07:12:42,830 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 07:12:44,558 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse0 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (and (forall ((v_ArrVal_3738 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_3739 (Array (_ BitVec 32) (_ BitVec 32)))) (bvule (bvadd (select (select (store |c_#memory_$Pointer$#3.offset| |c_ULTIMATE.start_main_#t~mem73#1.base| v_ArrVal_3739) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0) (_ bv20 32)) (select |c_#length| (select (select (store |c_#memory_$Pointer$#3.base| |c_ULTIMATE.start_main_#t~mem73#1.base| v_ArrVal_3738) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0)))) (forall ((v_ArrVal_3739 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse1 (select (select (store |c_#memory_$Pointer$#3.offset| |c_ULTIMATE.start_main_#t~mem73#1.base| v_ArrVal_3739) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0))) (bvule (bvadd (_ bv16 32) .cse1) (bvadd .cse1 (_ bv20 32))))))) is different from false [2023-11-29 07:12:44,567 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 07:12:44,567 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [76366477] [2023-11-29 07:12:44,567 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [76366477] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 07:12:44,568 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [2139334300] [2023-11-29 07:12:44,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:12:44,568 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-29 07:12:44,568 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5e2f426-a57a-4666-aeaf-099abc5557cc/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 [2023-11-29 07:12:44,569 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5e2f426-a57a-4666-aeaf-099abc5557cc/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-29 07:12:44,570 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5e2f426-a57a-4666-aeaf-099abc5557cc/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 --incremental --print-success --lang smt (31)] Waiting until timeout for monitored process [2023-11-29 07:14:31,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:14:31,997 INFO L262 TraceCheckSpWp]: Trace formula consists of 877 conjuncts, 120 conjunts are in the unsatisfiable core [2023-11-29 07:14:32,012 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:14:32,017 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2023-11-29 07:14:32,391 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-11-29 07:14:32,414 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2023-11-29 07:14:32,415 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13 [2023-11-29 07:14:32,496 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 11 treesize of output 7 [2023-11-29 07:14:32,507 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2023-11-29 07:14:32,705 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 10 [2023-11-29 07:14:32,711 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2023-11-29 07:14:33,771 INFO L349 Elim1Store]: treesize reduction 19, result has 20.8 percent of original size [2023-11-29 07:14:33,771 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 50 treesize of output 45 [2023-11-29 07:14:33,781 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 11 [2023-11-29 07:14:33,879 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2023-11-29 07:14:33,884 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2023-11-29 07:14:33,889 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 0 proven. 87 refuted. 0 times theorem prover too weak. 903 trivial. 0 not checked. [2023-11-29 07:14:33,889 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 07:14:35,283 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse0 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (and (forall ((v_ArrVal_4308 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_4309 (Array (_ BitVec 32) (_ BitVec 32)))) (bvule (bvadd (select (select (store |c_#memory_$Pointer$#3.offset| |c_ULTIMATE.start_main_#t~mem73#1.base| v_ArrVal_4308) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0) (_ bv20 32)) (select |c_#length| (select (select (store |c_#memory_$Pointer$#3.base| |c_ULTIMATE.start_main_#t~mem73#1.base| v_ArrVal_4309) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0)))) (forall ((v_ArrVal_4308 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse1 (select (select (store |c_#memory_$Pointer$#3.offset| |c_ULTIMATE.start_main_#t~mem73#1.base| v_ArrVal_4308) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0))) (bvule (bvadd (_ bv16 32) .cse1) (bvadd .cse1 (_ bv20 32))))))) is different from false [2023-11-29 07:14:35,289 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [2139334300] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 07:14:35,289 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 07:14:35,289 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 17 [2023-11-29 07:14:35,289 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1571757389] [2023-11-29 07:14:35,290 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 07:14:35,290 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2023-11-29 07:14:35,290 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 07:14:35,290 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2023-11-29 07:14:35,291 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=327, Unknown=2, NotChecked=74, Total=462 [2023-11-29 07:14:35,291 INFO L87 Difference]: Start difference. First operand 1711 states and 2354 transitions. Second operand has 18 states, 14 states have (on average 9.142857142857142) internal successors, (128), 14 states have internal predecessors, (128), 5 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-11-29 07:15:05,108 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:15:05,108 INFO L93 Difference]: Finished difference Result 2613 states and 3579 transitions. [2023-11-29 07:15:05,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-29 07:15:05,109 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 14 states have (on average 9.142857142857142) internal successors, (128), 14 states have internal predecessors, (128), 5 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Word has length 120 [2023-11-29 07:15:05,109 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:15:05,112 INFO L225 Difference]: With dead ends: 2613 [2023-11-29 07:15:05,112 INFO L226 Difference]: Without dead ends: 2613 [2023-11-29 07:15:05,112 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 253 GetRequests, 223 SyntacticMatches, 3 SemanticMatches, 27 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 139 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=112, Invalid=596, Unknown=2, NotChecked=102, Total=812 [2023-11-29 07:15:05,112 INFO L413 NwaCegarLoop]: 795 mSDtfsCounter, 1134 mSDsluCounter, 5056 mSDsCounter, 0 mSdLazyCounter, 11649 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 26.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1136 SdHoareTripleChecker+Valid, 5851 SdHoareTripleChecker+Invalid, 11678 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 11649 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 29.2s IncrementalHoareTripleChecker+Time [2023-11-29 07:15:05,113 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1136 Valid, 5851 Invalid, 11678 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [29 Valid, 11649 Invalid, 0 Unknown, 0 Unchecked, 29.2s Time] [2023-11-29 07:15:05,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2613 states. [2023-11-29 07:15:05,130 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2613 to 1710. [2023-11-29 07:15:05,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1710 states, 1177 states have (on average 1.9345794392523366) internal successors, (2277), 1666 states have internal predecessors, (2277), 38 states have call successors, (38), 16 states have call predecessors, (38), 16 states have return successors, (37), 30 states have call predecessors, (37), 34 states have call successors, (37) [2023-11-29 07:15:05,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1710 states to 1710 states and 2352 transitions. [2023-11-29 07:15:05,133 INFO L78 Accepts]: Start accepts. Automaton has 1710 states and 2352 transitions. Word has length 120 [2023-11-29 07:15:05,134 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:15:05,134 INFO L495 AbstractCegarLoop]: Abstraction has 1710 states and 2352 transitions. [2023-11-29 07:15:05,134 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 14 states have (on average 9.142857142857142) internal successors, (128), 14 states have internal predecessors, (128), 5 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-11-29 07:15:05,134 INFO L276 IsEmpty]: Start isEmpty. Operand 1710 states and 2352 transitions. [2023-11-29 07:15:05,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2023-11-29 07:15:05,135 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:15:05,135 INFO L195 NwaCegarLoop]: trace histogram [44, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:15:05,146 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5e2f426-a57a-4666-aeaf-099abc5557cc/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 (30)] Ended with exit code 0 [2023-11-29 07:15:05,374 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5e2f426-a57a-4666-aeaf-099abc5557cc/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 --incremental --print-success --lang smt (31)] Ended with exit code 0 [2023-11-29 07:15:05,536 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5e2f426-a57a-4666-aeaf-099abc5557cc/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=3,31 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5e2f426-a57a-4666-aeaf-099abc5557cc/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 --incremental --print-success --lang smt [2023-11-29 07:15:05,536 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr82REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, alt_mallocErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, alt_mallocErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 628 more)] === [2023-11-29 07:15:05,536 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:15:05,536 INFO L85 PathProgramCache]: Analyzing trace with hash -2025310281, now seen corresponding path program 1 times [2023-11-29 07:15:05,537 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 07:15:05,537 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [538008029] [2023-11-29 07:15:05,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:15:05,537 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-29 07:15:05,538 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5e2f426-a57a-4666-aeaf-099abc5557cc/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 07:15:05,538 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5e2f426-a57a-4666-aeaf-099abc5557cc/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 07:15:05,539 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5e2f426-a57a-4666-aeaf-099abc5557cc/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 (32)] Waiting until timeout for monitored process [2023-11-29 07:15:06,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:15:06,496 INFO L262 TraceCheckSpWp]: Trace formula consists of 896 conjuncts, 65 conjunts are in the unsatisfiable core [2023-11-29 07:15:06,504 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:15:06,509 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2023-11-29 07:15:06,716 INFO L349 Elim1Store]: treesize reduction 22, result has 35.3 percent of original size [2023-11-29 07:15:06,716 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 19 treesize of output 27 [2023-11-29 07:15:06,770 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2023-11-29 07:15:06,913 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 12 [2023-11-29 07:15:08,404 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2023-11-29 07:15:08,404 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 44 treesize of output 43 [2023-11-29 07:15:08,581 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2023-11-29 07:15:08,581 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 44 treesize of output 43 [2023-11-29 07:15:08,602 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 15 [2023-11-29 07:15:08,660 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 0 proven. 87 refuted. 0 times theorem prover too weak. 903 trivial. 0 not checked. [2023-11-29 07:15:08,660 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 07:15:12,855 WARN L854 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_4748 (Array (_ BitVec 32) (_ BitVec 32)))) (= (_ bv0 1) (bvadd (select |c_#valid| (let ((.cse0 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (select (select (store |c_#memory_$Pointer$#3.base| (select (select |c_#memory_$Pointer$#3.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse0) v_ArrVal_4748) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0))) (_ bv1 1)))) is different from false [2023-11-29 07:15:13,300 WARN L854 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_4748 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_4794 (Array (_ BitVec 32) (_ BitVec 32)))) (= (_ bv0 1) (bvadd (select |c_#valid| (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (select (select (let ((.cse0 (store |c_#memory_$Pointer$#3.base| |c_ULTIMATE.start_main_#t~mem73#1.base| v_ArrVal_4794))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_4748)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (_ bv1 1)))) is different from false [2023-11-29 07:15:13,303 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 07:15:13,304 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [538008029] [2023-11-29 07:15:13,304 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [538008029] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 07:15:13,304 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1927592559] [2023-11-29 07:15:13,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:15:13,304 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-29 07:15:13,304 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5e2f426-a57a-4666-aeaf-099abc5557cc/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 [2023-11-29 07:15:13,308 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5e2f426-a57a-4666-aeaf-099abc5557cc/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-29 07:15:13,309 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5e2f426-a57a-4666-aeaf-099abc5557cc/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 --incremental --print-success --lang smt (33)] Waiting until timeout for monitored process [2023-11-29 07:15:18,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:15:19,017 INFO L262 TraceCheckSpWp]: Trace formula consists of 896 conjuncts, 69 conjunts are in the unsatisfiable core [2023-11-29 07:15:19,026 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:15:19,035 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2023-11-29 07:15:19,417 INFO L349 Elim1Store]: treesize reduction 22, result has 35.3 percent of original size [2023-11-29 07:15:19,418 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 19 treesize of output 27 [2023-11-29 07:15:19,508 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2023-11-29 07:15:19,729 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 12 [2023-11-29 07:15:20,969 INFO L349 Elim1Store]: treesize reduction 19, result has 20.8 percent of original size [2023-11-29 07:15:20,969 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 36 treesize of output 35 [2023-11-29 07:15:21,192 INFO L349 Elim1Store]: treesize reduction 19, result has 20.8 percent of original size [2023-11-29 07:15:21,193 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 36 treesize of output 35 [2023-11-29 07:15:21,213 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 15 [2023-11-29 07:15:21,225 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 0 proven. 87 refuted. 0 times theorem prover too weak. 903 trivial. 0 not checked. [2023-11-29 07:15:21,226 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 07:15:21,244 WARN L854 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_5233 (Array (_ BitVec 32) (_ BitVec 32)))) (= (_ bv0 1) (bvadd (select |c_#valid| (select (select (store |c_#memory_$Pointer$#3.base| |c_ULTIMATE.start_main_#t~mem74#1.base| v_ArrVal_5233) |c_ULTIMATE.start_main_~user~0#1.base|) (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (_ bv1 1)))) is different from false [2023-11-29 07:15:21,258 WARN L854 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_5233 (Array (_ BitVec 32) (_ BitVec 32)))) (= (_ bv0 1) (bvadd (select |c_#valid| (let ((.cse0 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (select (select (store |c_#memory_$Pointer$#3.base| (select (select |c_#memory_$Pointer$#3.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse0) v_ArrVal_5233) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0))) (_ bv1 1)))) is different from false [2023-11-29 07:15:21,800 WARN L854 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_5279 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_5233 (Array (_ BitVec 32) (_ BitVec 32)))) (= (_ bv0 1) (bvadd (select |c_#valid| (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (select (select (let ((.cse0 (store |c_#memory_$Pointer$#3.base| |c_ULTIMATE.start_main_#t~mem73#1.base| v_ArrVal_5279))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_5233)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (_ bv1 1)))) is different from false [2023-11-29 07:15:21,804 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1927592559] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 07:15:21,804 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 07:15:21,804 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 18 [2023-11-29 07:15:21,804 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [711060490] [2023-11-29 07:15:21,804 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 07:15:21,805 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2023-11-29 07:15:21,805 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 07:15:21,806 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2023-11-29 07:15:21,806 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=88, Invalid=388, Unknown=6, NotChecked=220, Total=702 [2023-11-29 07:15:21,806 INFO L87 Difference]: Start difference. First operand 1710 states and 2352 transitions. Second operand has 19 states, 15 states have (on average 8.8) internal successors, (132), 16 states have internal predecessors, (132), 5 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-11-29 07:15:26,740 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 07:15:30,744 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 07:15:34,804 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 07:15:38,808 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 07:15:53,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:15:53,934 INFO L93 Difference]: Finished difference Result 2093 states and 2860 transitions. [2023-11-29 07:15:53,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-29 07:15:53,935 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 15 states have (on average 8.8) internal successors, (132), 16 states have internal predecessors, (132), 5 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Word has length 122 [2023-11-29 07:15:53,935 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:15:53,938 INFO L225 Difference]: With dead ends: 2093 [2023-11-29 07:15:53,938 INFO L226 Difference]: Without dead ends: 2093 [2023-11-29 07:15:53,938 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 259 GetRequests, 226 SyntacticMatches, 3 SemanticMatches, 30 ConstructedPredicates, 5 IntricatePredicates, 0 DeprecatedPredicates, 169 ImplicationChecksByTransitivity, 5.3s TimeCoverageRelationStatistics Valid=123, Invalid=593, Unknown=6, NotChecked=270, Total=992 [2023-11-29 07:15:53,939 INFO L413 NwaCegarLoop]: 567 mSDtfsCounter, 733 mSDsluCounter, 4522 mSDsCounter, 0 mSdLazyCounter, 6198 mSolverCounterSat, 25 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 30.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 735 SdHoareTripleChecker+Valid, 5089 SdHoareTripleChecker+Invalid, 6227 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 6198 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 31.7s IncrementalHoareTripleChecker+Time [2023-11-29 07:15:53,939 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [735 Valid, 5089 Invalid, 6227 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [25 Valid, 6198 Invalid, 4 Unknown, 0 Unchecked, 31.7s Time] [2023-11-29 07:15:53,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2093 states. [2023-11-29 07:15:53,960 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2093 to 1709. [2023-11-29 07:15:53,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1709 states, 1177 states have (on average 1.9328802039082413) internal successors, (2275), 1665 states have internal predecessors, (2275), 38 states have call successors, (38), 16 states have call predecessors, (38), 16 states have return successors, (37), 30 states have call predecessors, (37), 34 states have call successors, (37) [2023-11-29 07:15:53,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1709 states to 1709 states and 2350 transitions. [2023-11-29 07:15:53,966 INFO L78 Accepts]: Start accepts. Automaton has 1709 states and 2350 transitions. Word has length 122 [2023-11-29 07:15:53,966 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:15:53,966 INFO L495 AbstractCegarLoop]: Abstraction has 1709 states and 2350 transitions. [2023-11-29 07:15:53,966 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 15 states have (on average 8.8) internal successors, (132), 16 states have internal predecessors, (132), 5 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-11-29 07:15:53,967 INFO L276 IsEmpty]: Start isEmpty. Operand 1709 states and 2350 transitions. [2023-11-29 07:15:53,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2023-11-29 07:15:53,967 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:15:53,968 INFO L195 NwaCegarLoop]: trace histogram [44, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:15:53,978 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5e2f426-a57a-4666-aeaf-099abc5557cc/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 (32)] Ended with exit code 0 [2023-11-29 07:15:54,183 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5e2f426-a57a-4666-aeaf-099abc5557cc/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 --incremental --print-success --lang smt (33)] Ended with exit code 0 [2023-11-29 07:15:54,368 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 32 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5e2f426-a57a-4666-aeaf-099abc5557cc/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=3,33 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5e2f426-a57a-4666-aeaf-099abc5557cc/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 --incremental --print-success --lang smt [2023-11-29 07:15:54,369 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr83REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, alt_mallocErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, alt_mallocErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 628 more)] === [2023-11-29 07:15:54,369 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:15:54,369 INFO L85 PathProgramCache]: Analyzing trace with hash -2025310280, now seen corresponding path program 1 times [2023-11-29 07:15:54,370 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 07:15:54,370 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [440928212] [2023-11-29 07:15:54,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:15:54,370 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 07:15:54,370 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5e2f426-a57a-4666-aeaf-099abc5557cc/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 07:15:54,371 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5e2f426-a57a-4666-aeaf-099abc5557cc/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 07:15:54,372 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5e2f426-a57a-4666-aeaf-099abc5557cc/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 (34)] Waiting until timeout for monitored process [2023-11-29 07:15:55,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:15:55,397 INFO L262 TraceCheckSpWp]: Trace formula consists of 896 conjuncts, 120 conjunts are in the unsatisfiable core [2023-11-29 07:15:55,410 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:15:55,414 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2023-11-29 07:15:55,598 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-11-29 07:15:55,646 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2023-11-29 07:15:55,646 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13 [2023-11-29 07:15:55,693 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 13 treesize of output 9 [2023-11-29 07:15:55,706 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2023-11-29 07:15:55,858 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 10 [2023-11-29 07:15:55,864 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2023-11-29 07:15:57,073 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2023-11-29 07:15:57,073 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 62 treesize of output 57 [2023-11-29 07:15:57,083 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 13 [2023-11-29 07:15:57,245 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2023-11-29 07:15:57,246 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 62 treesize of output 57 [2023-11-29 07:15:57,257 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 13 [2023-11-29 07:15:57,274 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 13 [2023-11-29 07:15:57,281 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2023-11-29 07:15:57,323 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 0 proven. 87 refuted. 0 times theorem prover too weak. 903 trivial. 0 not checked. [2023-11-29 07:15:57,323 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 07:15:57,564 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (and (forall ((v_ArrVal_5764 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (select (select (store |c_#memory_$Pointer$#3.offset| |c_ULTIMATE.start_main_#t~mem74#1.base| v_ArrVal_5764) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (bvule (bvadd (_ bv4 32) .cse0) (bvadd (_ bv8 32) .cse0)))) (forall ((v_ArrVal_5764 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_5765 (Array (_ BitVec 32) (_ BitVec 32)))) (bvule (bvadd (_ bv8 32) (select (select (store |c_#memory_$Pointer$#3.offset| |c_ULTIMATE.start_main_#t~mem74#1.base| v_ArrVal_5764) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)) (select |c_#length| (select (select (store |c_#memory_$Pointer$#3.base| |c_ULTIMATE.start_main_#t~mem74#1.base| v_ArrVal_5765) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))))) is different from false [2023-11-29 07:15:57,609 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse2 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (let ((.cse1 (select (select |c_#memory_$Pointer$#3.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (and (forall ((v_ArrVal_5764 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (select (select (store |c_#memory_$Pointer$#3.offset| .cse1 v_ArrVal_5764) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (bvule (bvadd (_ bv4 32) .cse0) (bvadd (_ bv8 32) .cse0)))) (forall ((v_ArrVal_5764 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_5765 (Array (_ BitVec 32) (_ BitVec 32)))) (bvule (bvadd (_ bv8 32) (select (select (store |c_#memory_$Pointer$#3.offset| .cse1 v_ArrVal_5764) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2)) (select |c_#length| (select (select (store |c_#memory_$Pointer$#3.base| .cse1 v_ArrVal_5765) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))))))) is different from false [2023-11-29 07:15:59,230 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (and (forall ((v_ArrVal_5856 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_5857 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_5764 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (select (select (store (store |c_#memory_$Pointer$#3.offset| |c_ULTIMATE.start_main_#t~mem73#1.base| v_ArrVal_5856) (select (select (store |c_#memory_$Pointer$#3.base| |c_ULTIMATE.start_main_#t~mem73#1.base| v_ArrVal_5857) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_5764) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (bvule (bvadd (_ bv4 32) .cse0) (bvadd (_ bv8 32) .cse0)))) (forall ((v_ArrVal_5856 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_5857 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_5764 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_5765 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse3 (store |c_#memory_$Pointer$#3.base| |c_ULTIMATE.start_main_#t~mem73#1.base| v_ArrVal_5857))) (let ((.cse2 (select (select .cse3 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (bvule (bvadd (_ bv8 32) (select (select (store (store |c_#memory_$Pointer$#3.offset| |c_ULTIMATE.start_main_#t~mem73#1.base| v_ArrVal_5856) .cse2 v_ArrVal_5764) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)) (select |c_#length| (select (select (store .cse3 .cse2 v_ArrVal_5765) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))))))) is different from false [2023-11-29 07:15:59,244 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 07:15:59,244 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [440928212] [2023-11-29 07:15:59,244 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [440928212] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 07:15:59,245 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [817793692] [2023-11-29 07:15:59,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:15:59,245 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-29 07:15:59,245 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5e2f426-a57a-4666-aeaf-099abc5557cc/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 [2023-11-29 07:15:59,246 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5e2f426-a57a-4666-aeaf-099abc5557cc/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-29 07:15:59,247 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5e2f426-a57a-4666-aeaf-099abc5557cc/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 --incremental --print-success --lang smt (35)] Waiting until timeout for monitored process [2023-11-29 07:16:04,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:16:05,036 INFO L262 TraceCheckSpWp]: Trace formula consists of 896 conjuncts, 122 conjunts are in the unsatisfiable core [2023-11-29 07:16:05,050 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:16:05,059 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2023-11-29 07:16:05,451 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-11-29 07:16:05,474 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2023-11-29 07:16:05,474 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13 [2023-11-29 07:16:05,562 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 11 treesize of output 7 [2023-11-29 07:16:05,578 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2023-11-29 07:16:05,795 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 10 [2023-11-29 07:16:05,801 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2023-11-29 07:16:06,885 INFO L349 Elim1Store]: treesize reduction 19, result has 20.8 percent of original size [2023-11-29 07:16:06,886 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 50 treesize of output 45 [2023-11-29 07:16:06,892 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 11 [2023-11-29 07:16:07,150 INFO L349 Elim1Store]: treesize reduction 19, result has 20.8 percent of original size [2023-11-29 07:16:07,151 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 50 treesize of output 45 [2023-11-29 07:16:07,157 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 11 [2023-11-29 07:16:07,184 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2023-11-29 07:16:07,193 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2023-11-29 07:16:07,195 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 0 proven. 87 refuted. 0 times theorem prover too weak. 903 trivial. 0 not checked. [2023-11-29 07:16:07,195 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 07:16:07,256 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (and (forall ((v_ArrVal_6343 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (select (select (store |c_#memory_$Pointer$#3.offset| |c_ULTIMATE.start_main_#t~mem74#1.base| v_ArrVal_6343) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (bvule (bvadd (_ bv4 32) .cse0) (bvadd (_ bv8 32) .cse0)))) (forall ((v_ArrVal_6342 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6343 (Array (_ BitVec 32) (_ BitVec 32)))) (bvule (bvadd (_ bv8 32) (select (select (store |c_#memory_$Pointer$#3.offset| |c_ULTIMATE.start_main_#t~mem74#1.base| v_ArrVal_6343) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)) (select |c_#length| (select (select (store |c_#memory_$Pointer$#3.base| |c_ULTIMATE.start_main_#t~mem74#1.base| v_ArrVal_6342) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))))) is different from false [2023-11-29 07:16:07,294 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (let ((.cse0 (select (select |c_#memory_$Pointer$#3.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (and (forall ((v_ArrVal_6342 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6343 (Array (_ BitVec 32) (_ BitVec 32)))) (bvule (bvadd (select (select (store |c_#memory_$Pointer$#3.offset| .cse0 v_ArrVal_6343) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) (_ bv8 32)) (select |c_#length| (select (select (store |c_#memory_$Pointer$#3.base| .cse0 v_ArrVal_6342) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))) (forall ((v_ArrVal_6343 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse2 (select (select (store |c_#memory_$Pointer$#3.offset| .cse0 v_ArrVal_6343) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (bvule (bvadd .cse2 (_ bv4 32)) (bvadd .cse2 (_ bv8 32)))))))) is different from false [2023-11-29 07:16:09,023 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (and (forall ((v_ArrVal_6434 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6435 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6342 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6343 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse2 (store |c_#memory_$Pointer$#3.base| |c_ULTIMATE.start_main_#t~mem73#1.base| v_ArrVal_6435))) (let ((.cse0 (select (select .cse2 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (bvule (bvadd (_ bv8 32) (select (select (store (store |c_#memory_$Pointer$#3.offset| |c_ULTIMATE.start_main_#t~mem73#1.base| v_ArrVal_6434) .cse0 v_ArrVal_6343) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)) (select |c_#length| (select (select (store .cse2 .cse0 v_ArrVal_6342) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))))) (forall ((v_ArrVal_6434 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6435 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6343 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse3 (select (select (store (store |c_#memory_$Pointer$#3.offset| |c_ULTIMATE.start_main_#t~mem73#1.base| v_ArrVal_6434) (select (select (store |c_#memory_$Pointer$#3.base| |c_ULTIMATE.start_main_#t~mem73#1.base| v_ArrVal_6435) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_6343) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (bvule (bvadd (_ bv4 32) .cse3) (bvadd (_ bv8 32) .cse3)))))) is different from false [2023-11-29 07:16:09,034 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [817793692] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 07:16:09,034 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 07:16:09,034 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 19 [2023-11-29 07:16:09,035 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [365493219] [2023-11-29 07:16:09,035 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 07:16:09,035 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2023-11-29 07:16:09,035 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 07:16:09,036 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2023-11-29 07:16:09,036 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=403, Unknown=6, NotChecked=270, Total=756 [2023-11-29 07:16:09,036 INFO L87 Difference]: Start difference. First operand 1709 states and 2350 transitions. Second operand has 20 states, 16 states have (on average 8.25) internal successors, (132), 16 states have internal predecessors, (132), 5 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-11-29 07:16:30,523 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:16:30,523 INFO L93 Difference]: Finished difference Result 2611 states and 3575 transitions. [2023-11-29 07:16:30,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-11-29 07:16:30,524 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 16 states have (on average 8.25) internal successors, (132), 16 states have internal predecessors, (132), 5 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Word has length 122 [2023-11-29 07:16:30,524 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:16:30,526 INFO L225 Difference]: With dead ends: 2611 [2023-11-29 07:16:30,526 INFO L226 Difference]: Without dead ends: 2611 [2023-11-29 07:16:30,527 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 262 GetRequests, 225 SyntacticMatches, 3 SemanticMatches, 34 ConstructedPredicates, 6 IntricatePredicates, 0 DeprecatedPredicates, 181 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=140, Invalid=748, Unknown=6, NotChecked=366, Total=1260 [2023-11-29 07:16:30,527 INFO L413 NwaCegarLoop]: 794 mSDtfsCounter, 1191 mSDsluCounter, 3724 mSDsCounter, 0 mSdLazyCounter, 8350 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 18.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1193 SdHoareTripleChecker+Valid, 4518 SdHoareTripleChecker+Invalid, 8382 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 8350 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 20.9s IncrementalHoareTripleChecker+Time [2023-11-29 07:16:30,527 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1193 Valid, 4518 Invalid, 8382 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [32 Valid, 8350 Invalid, 0 Unknown, 0 Unchecked, 20.9s Time] [2023-11-29 07:16:30,529 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2611 states. [2023-11-29 07:16:30,550 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2611 to 1708. [2023-11-29 07:16:30,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1708 states, 1177 states have (on average 1.9311809685641461) internal successors, (2273), 1664 states have internal predecessors, (2273), 38 states have call successors, (38), 16 states have call predecessors, (38), 16 states have return successors, (37), 30 states have call predecessors, (37), 34 states have call successors, (37) [2023-11-29 07:16:30,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1708 states to 1708 states and 2348 transitions. [2023-11-29 07:16:30,556 INFO L78 Accepts]: Start accepts. Automaton has 1708 states and 2348 transitions. Word has length 122 [2023-11-29 07:16:30,556 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:16:30,556 INFO L495 AbstractCegarLoop]: Abstraction has 1708 states and 2348 transitions. [2023-11-29 07:16:30,556 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 16 states have (on average 8.25) internal successors, (132), 16 states have internal predecessors, (132), 5 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-11-29 07:16:30,557 INFO L276 IsEmpty]: Start isEmpty. Operand 1708 states and 2348 transitions. [2023-11-29 07:16:30,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2023-11-29 07:16:30,557 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:16:30,558 INFO L195 NwaCegarLoop]: trace histogram [44, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:16:30,575 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5e2f426-a57a-4666-aeaf-099abc5557cc/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 --incremental --print-success --lang smt (35)] Ended with exit code 0 [2023-11-29 07:16:30,768 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5e2f426-a57a-4666-aeaf-099abc5557cc/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 (34)] Forceful destruction successful, exit code 0 [2023-11-29 07:16:30,958 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 35 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5e2f426-a57a-4666-aeaf-099abc5557cc/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 --incremental --print-success --lang smt,34 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5e2f426-a57a-4666-aeaf-099abc5557cc/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 07:16:30,958 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr86REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, alt_mallocErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, alt_mallocErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 628 more)] === [2023-11-29 07:16:30,959 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:16:30,959 INFO L85 PathProgramCache]: Analyzing trace with hash -701347231, now seen corresponding path program 1 times [2023-11-29 07:16:30,959 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 07:16:30,960 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1852787692] [2023-11-29 07:16:30,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:16:30,960 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 07:16:30,960 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5e2f426-a57a-4666-aeaf-099abc5557cc/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 07:16:30,961 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5e2f426-a57a-4666-aeaf-099abc5557cc/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 07:16:30,961 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5e2f426-a57a-4666-aeaf-099abc5557cc/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 (36)] Waiting until timeout for monitored process [2023-11-29 07:16:32,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:16:32,130 INFO L262 TraceCheckSpWp]: Trace formula consists of 924 conjuncts, 67 conjunts are in the unsatisfiable core [2023-11-29 07:16:32,138 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:16:32,142 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2023-11-29 07:16:32,353 INFO L349 Elim1Store]: treesize reduction 22, result has 35.3 percent of original size [2023-11-29 07:16:32,353 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 19 treesize of output 27 [2023-11-29 07:16:32,418 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2023-11-29 07:16:32,552 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 12 [2023-11-29 07:16:34,007 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2023-11-29 07:16:34,007 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 44 treesize of output 43 [2023-11-29 07:16:34,167 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2023-11-29 07:16:34,167 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 44 treesize of output 43 [2023-11-29 07:16:34,288 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2023-11-29 07:16:34,288 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 44 treesize of output 43 [2023-11-29 07:16:34,306 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 15 [2023-11-29 07:16:34,378 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 0 proven. 87 refuted. 0 times theorem prover too weak. 903 trivial. 0 not checked. [2023-11-29 07:16:34,378 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 07:16:34,715 WARN L854 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_6890 (Array (_ BitVec 32) (_ BitVec 32)))) (= (bvadd (select |c_#valid| (let ((.cse0 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (select (select (store |c_#memory_$Pointer$#3.base| (select (select |c_#memory_$Pointer$#3.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse0) v_ArrVal_6890) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0))) (_ bv1 1)) (_ bv0 1))) is different from false [2023-11-29 07:16:34,861 WARN L854 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_6890 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6889 (Array (_ BitVec 32) (_ BitVec 32)))) (= (_ bv0 1) (bvadd (select |c_#valid| (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (select (select (let ((.cse0 (store |c_#memory_$Pointer$#3.base| (select (select |c_#memory_$Pointer$#3.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_6889))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_6890)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (_ bv1 1)))) is different from false [2023-11-29 07:16:35,354 WARN L854 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_6936 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6890 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6889 (Array (_ BitVec 32) (_ BitVec 32)))) (= (bvadd (select |c_#valid| (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (select (select (let ((.cse0 (let ((.cse2 (store |c_#memory_$Pointer$#3.base| |c_ULTIMATE.start_main_#t~mem73#1.base| v_ArrVal_6936))) (store .cse2 (select (select .cse2 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_6889)))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_6890)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (_ bv1 1)) (_ bv0 1))) is different from false [2023-11-29 07:16:35,359 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 07:16:35,359 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1852787692] [2023-11-29 07:16:35,359 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1852787692] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 07:16:35,359 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1696573782] [2023-11-29 07:16:35,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:16:35,359 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-29 07:16:35,359 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5e2f426-a57a-4666-aeaf-099abc5557cc/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 [2023-11-29 07:16:35,360 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5e2f426-a57a-4666-aeaf-099abc5557cc/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-29 07:16:35,361 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5e2f426-a57a-4666-aeaf-099abc5557cc/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 --incremental --print-success --lang smt (37)] Waiting until timeout for monitored process [2023-11-29 07:16:41,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:16:41,488 INFO L262 TraceCheckSpWp]: Trace formula consists of 924 conjuncts, 71 conjunts are in the unsatisfiable core [2023-11-29 07:16:41,497 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:16:41,506 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2023-11-29 07:16:41,919 INFO L349 Elim1Store]: treesize reduction 22, result has 35.3 percent of original size [2023-11-29 07:16:41,919 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 19 treesize of output 27 [2023-11-29 07:16:42,014 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2023-11-29 07:16:42,239 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 12 [2023-11-29 07:16:43,523 INFO L349 Elim1Store]: treesize reduction 19, result has 20.8 percent of original size [2023-11-29 07:16:43,523 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 36 treesize of output 35 [2023-11-29 07:16:43,770 INFO L349 Elim1Store]: treesize reduction 19, result has 20.8 percent of original size [2023-11-29 07:16:43,770 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 36 treesize of output 35 [2023-11-29 07:16:43,916 INFO L349 Elim1Store]: treesize reduction 19, result has 20.8 percent of original size [2023-11-29 07:16:43,917 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 36 treesize of output 35 [2023-11-29 07:16:43,934 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 15 [2023-11-29 07:16:43,946 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 0 proven. 87 refuted. 0 times theorem prover too weak. 903 trivial. 0 not checked. [2023-11-29 07:16:43,946 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 07:16:48,068 WARN L854 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_6890 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7390 (Array (_ BitVec 32) (_ BitVec 32)))) (= (_ bv0 1) (bvadd (select |c_#valid| (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (select (select (let ((.cse0 (store |c_#memory_$Pointer$#3.base| |c_ULTIMATE.start_main_#t~mem74#1.base| v_ArrVal_7390))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_6890)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (_ bv1 1)))) is different from false [2023-11-29 07:16:48,084 WARN L854 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_6890 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7390 (Array (_ BitVec 32) (_ BitVec 32)))) (= (_ bv0 1) (bvadd (select |c_#valid| (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (select (select (let ((.cse0 (store |c_#memory_$Pointer$#3.base| (select (select |c_#memory_$Pointer$#3.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_7390))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_6890)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (_ bv1 1)))) is different from false [2023-11-29 07:16:48,626 WARN L854 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_6890 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7390 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7437 (Array (_ BitVec 32) (_ BitVec 32)))) (= (_ bv0 1) (bvadd (select |c_#valid| (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (select (select (let ((.cse0 (let ((.cse2 (store |c_#memory_$Pointer$#3.base| |c_ULTIMATE.start_main_#t~mem73#1.base| v_ArrVal_7437))) (store .cse2 (select (select .cse2 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_7390)))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_6890)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (_ bv1 1)))) is different from false [2023-11-29 07:16:48,630 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1696573782] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 07:16:48,630 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 07:16:48,630 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 20 [2023-11-29 07:16:48,630 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [776092819] [2023-11-29 07:16:48,630 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 07:16:48,631 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2023-11-29 07:16:48,631 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 07:16:48,631 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2023-11-29 07:16:48,632 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=108, Invalid=502, Unknown=14, NotChecked=306, Total=930 [2023-11-29 07:16:48,632 INFO L87 Difference]: Start difference. First operand 1708 states and 2348 transitions. Second operand has 21 states, 17 states have (on average 8.0) internal successors, (136), 18 states have internal predecessors, (136), 5 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-11-29 07:16:53,668 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 07:16:57,682 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 07:17:01,730 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 07:17:05,734 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 07:17:21,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:17:21,236 INFO L93 Difference]: Finished difference Result 2091 states and 2856 transitions. [2023-11-29 07:17:21,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-11-29 07:17:21,237 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 17 states have (on average 8.0) internal successors, (136), 18 states have internal predecessors, (136), 5 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Word has length 124 [2023-11-29 07:17:21,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:17:21,239 INFO L225 Difference]: With dead ends: 2091 [2023-11-29 07:17:21,239 INFO L226 Difference]: Without dead ends: 2091 [2023-11-29 07:17:21,240 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 267 GetRequests, 229 SyntacticMatches, 4 SemanticMatches, 34 ConstructedPredicates, 6 IntricatePredicates, 0 DeprecatedPredicates, 239 ImplicationChecksByTransitivity, 5.9s TimeCoverageRelationStatistics Valid=143, Invalid=737, Unknown=14, NotChecked=366, Total=1260 [2023-11-29 07:17:21,240 INFO L413 NwaCegarLoop]: 566 mSDtfsCounter, 1359 mSDsluCounter, 4779 mSDsCounter, 0 mSdLazyCounter, 6530 mSolverCounterSat, 30 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 30.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1361 SdHoareTripleChecker+Valid, 5345 SdHoareTripleChecker+Invalid, 6564 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 6530 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 32.2s IncrementalHoareTripleChecker+Time [2023-11-29 07:17:21,241 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1361 Valid, 5345 Invalid, 6564 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [30 Valid, 6530 Invalid, 4 Unknown, 0 Unchecked, 32.2s Time] [2023-11-29 07:17:21,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2091 states. [2023-11-29 07:17:21,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2091 to 1707. [2023-11-29 07:17:21,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1707 states, 1177 states have (on average 1.929481733220051) internal successors, (2271), 1663 states have internal predecessors, (2271), 38 states have call successors, (38), 16 states have call predecessors, (38), 16 states have return successors, (37), 30 states have call predecessors, (37), 34 states have call successors, (37) [2023-11-29 07:17:21,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1707 states to 1707 states and 2346 transitions. [2023-11-29 07:17:21,261 INFO L78 Accepts]: Start accepts. Automaton has 1707 states and 2346 transitions. Word has length 124 [2023-11-29 07:17:21,261 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:17:21,261 INFO L495 AbstractCegarLoop]: Abstraction has 1707 states and 2346 transitions. [2023-11-29 07:17:21,261 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 17 states have (on average 8.0) internal successors, (136), 18 states have internal predecessors, (136), 5 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-11-29 07:17:21,262 INFO L276 IsEmpty]: Start isEmpty. Operand 1707 states and 2346 transitions. [2023-11-29 07:17:21,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2023-11-29 07:17:21,262 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:17:21,262 INFO L195 NwaCegarLoop]: trace histogram [44, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:17:21,284 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5e2f426-a57a-4666-aeaf-099abc5557cc/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 --incremental --print-success --lang smt (37)] Ended with exit code 0 [2023-11-29 07:17:21,473 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5e2f426-a57a-4666-aeaf-099abc5557cc/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 (36)] Ended with exit code 0 [2023-11-29 07:17:21,663 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 37 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5e2f426-a57a-4666-aeaf-099abc5557cc/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 --incremental --print-success --lang smt,36 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5e2f426-a57a-4666-aeaf-099abc5557cc/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 07:17:21,663 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr87REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, alt_mallocErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, alt_mallocErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 628 more)] === [2023-11-29 07:17:21,664 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:17:21,664 INFO L85 PathProgramCache]: Analyzing trace with hash -701347230, now seen corresponding path program 1 times [2023-11-29 07:17:21,664 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 07:17:21,664 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [258838348] [2023-11-29 07:17:21,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:17:21,665 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 07:17:21,665 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5e2f426-a57a-4666-aeaf-099abc5557cc/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 07:17:21,666 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5e2f426-a57a-4666-aeaf-099abc5557cc/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 07:17:21,667 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5e2f426-a57a-4666-aeaf-099abc5557cc/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 (38)] Waiting until timeout for monitored process [2023-11-29 07:17:22,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:17:22,891 INFO L262 TraceCheckSpWp]: Trace formula consists of 924 conjuncts, 123 conjunts are in the unsatisfiable core [2023-11-29 07:17:22,903 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:17:22,907 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2023-11-29 07:17:23,101 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-11-29 07:17:23,147 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2023-11-29 07:17:23,147 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13 [2023-11-29 07:17:23,184 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2023-11-29 07:17:23,193 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 13 treesize of output 9 [2023-11-29 07:17:23,356 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 10 [2023-11-29 07:17:23,362 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2023-11-29 07:17:24,552 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2023-11-29 07:17:24,552 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 62 treesize of output 57 [2023-11-29 07:17:24,567 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 13 [2023-11-29 07:17:24,720 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2023-11-29 07:17:24,720 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 62 treesize of output 57 [2023-11-29 07:17:24,728 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 13 [2023-11-29 07:17:24,867 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2023-11-29 07:17:24,867 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 62 treesize of output 57 [2023-11-29 07:17:24,874 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 13 [2023-11-29 07:17:24,899 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 13 [2023-11-29 07:17:24,905 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2023-11-29 07:17:24,958 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 0 proven. 87 refuted. 0 times theorem prover too weak. 903 trivial. 0 not checked. [2023-11-29 07:17:24,959 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 07:17:25,209 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (and (forall ((v_ArrVal_7939 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (select (select (store |c_#memory_$Pointer$#3.offset| |c_ULTIMATE.start_main_#t~mem75#1.base| v_ArrVal_7939) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (bvule (bvadd .cse0 (_ bv8 32)) (bvadd .cse0 (_ bv12 32))))) (forall ((v_ArrVal_7939 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7940 (Array (_ BitVec 32) (_ BitVec 32)))) (bvule (bvadd (select (select (store |c_#memory_$Pointer$#3.offset| |c_ULTIMATE.start_main_#t~mem75#1.base| v_ArrVal_7939) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) (_ bv12 32)) (select |c_#length| (select (select (store |c_#memory_$Pointer$#3.base| |c_ULTIMATE.start_main_#t~mem75#1.base| v_ArrVal_7940) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))))) is different from false [2023-11-29 07:17:25,248 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse2 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (let ((.cse1 (select (select |c_#memory_$Pointer$#3.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (and (forall ((v_ArrVal_7939 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (select (select (store |c_#memory_$Pointer$#3.offset| .cse1 v_ArrVal_7939) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (bvule (bvadd (_ bv8 32) .cse0) (bvadd .cse0 (_ bv12 32))))) (forall ((v_ArrVal_7939 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7940 (Array (_ BitVec 32) (_ BitVec 32)))) (bvule (bvadd (select (select (store |c_#memory_$Pointer$#3.offset| .cse1 v_ArrVal_7939) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2) (_ bv12 32)) (select |c_#length| (select (select (store |c_#memory_$Pointer$#3.base| .cse1 v_ArrVal_7940) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))))))) is different from false [2023-11-29 07:17:25,348 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (and (forall ((v_ArrVal_7939 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7938 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7937 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (select (select (store (store |c_#memory_$Pointer$#3.offset| |c_ULTIMATE.start_main_#t~mem74#1.base| v_ArrVal_7938) (select (select (store |c_#memory_$Pointer$#3.base| |c_ULTIMATE.start_main_#t~mem74#1.base| v_ArrVal_7937) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_7939) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (bvule (bvadd .cse0 (_ bv8 32)) (bvadd .cse0 (_ bv12 32))))) (forall ((v_ArrVal_7939 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7938 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7937 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7940 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse3 (store |c_#memory_$Pointer$#3.base| |c_ULTIMATE.start_main_#t~mem74#1.base| v_ArrVal_7937))) (let ((.cse2 (select (select .cse3 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (bvule (bvadd (select (select (store (store |c_#memory_$Pointer$#3.offset| |c_ULTIMATE.start_main_#t~mem74#1.base| v_ArrVal_7938) .cse2 v_ArrVal_7939) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) (_ bv12 32)) (select |c_#length| (select (select (store .cse3 .cse2 v_ArrVal_7940) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))))))) is different from false [2023-11-29 07:17:25,502 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse2 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (let ((.cse0 (select (select |c_#memory_$Pointer$#3.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (and (forall ((v_ArrVal_7939 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7938 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7937 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7940 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse3 (store |c_#memory_$Pointer$#3.base| .cse0 v_ArrVal_7937))) (let ((.cse1 (select (select .cse3 |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (bvule (bvadd (select (select (store (store |c_#memory_$Pointer$#3.offset| .cse0 v_ArrVal_7938) .cse1 v_ArrVal_7939) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2) (_ bv12 32)) (select |c_#length| (select (select (store .cse3 .cse1 v_ArrVal_7940) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2)))))) (forall ((v_ArrVal_7939 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7938 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7937 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse4 (select (select (store (store |c_#memory_$Pointer$#3.offset| .cse0 v_ArrVal_7938) (select (select (store |c_#memory_$Pointer$#3.base| .cse0 v_ArrVal_7937) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2) v_ArrVal_7939) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (bvule (bvadd .cse4 (_ bv8 32)) (bvadd .cse4 (_ bv12 32)))))))) is different from false [2023-11-29 07:17:27,806 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse3 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (and (forall ((v_ArrVal_7939 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8032 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7938 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8031 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7937 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (select (select (let ((.cse2 (store |c_#memory_$Pointer$#3.base| |c_ULTIMATE.start_main_#t~mem73#1.base| v_ArrVal_8031))) (let ((.cse1 (select (select .cse2 |c_ULTIMATE.start_main_~user~0#1.base|) .cse3))) (store (store (store |c_#memory_$Pointer$#3.offset| |c_ULTIMATE.start_main_#t~mem73#1.base| v_ArrVal_8032) .cse1 v_ArrVal_7938) (select (select (store .cse2 .cse1 v_ArrVal_7937) |c_ULTIMATE.start_main_~user~0#1.base|) .cse3) v_ArrVal_7939))) |c_ULTIMATE.start_main_~user~0#1.base|) .cse3))) (bvule (bvadd (_ bv8 32) .cse0) (bvadd .cse0 (_ bv12 32))))) (forall ((v_ArrVal_7939 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8032 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7938 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8031 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7937 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7940 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse7 (store |c_#memory_$Pointer$#3.base| |c_ULTIMATE.start_main_#t~mem73#1.base| v_ArrVal_8031))) (let ((.cse4 (select (select .cse7 |c_ULTIMATE.start_main_~user~0#1.base|) .cse3))) (let ((.cse6 (store .cse7 .cse4 v_ArrVal_7937))) (let ((.cse5 (select (select .cse6 |c_ULTIMATE.start_main_~user~0#1.base|) .cse3))) (bvule (bvadd (select (select (store (store (store |c_#memory_$Pointer$#3.offset| |c_ULTIMATE.start_main_#t~mem73#1.base| v_ArrVal_8032) .cse4 v_ArrVal_7938) .cse5 v_ArrVal_7939) |c_ULTIMATE.start_main_~user~0#1.base|) .cse3) (_ bv12 32)) (select |c_#length| (select (select (store .cse6 .cse5 v_ArrVal_7940) |c_ULTIMATE.start_main_~user~0#1.base|) .cse3)))))))))) is different from false [2023-11-29 07:17:27,825 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 07:17:27,825 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [258838348] [2023-11-29 07:17:27,826 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [258838348] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 07:17:27,826 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [125688346] [2023-11-29 07:17:27,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:17:27,826 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-29 07:17:27,826 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5e2f426-a57a-4666-aeaf-099abc5557cc/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 [2023-11-29 07:17:27,827 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5e2f426-a57a-4666-aeaf-099abc5557cc/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-29 07:17:27,828 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5e2f426-a57a-4666-aeaf-099abc5557cc/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 --incremental --print-success --lang smt (39)] Waiting until timeout for monitored process [2023-11-29 07:19:26,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:19:26,469 INFO L262 TraceCheckSpWp]: Trace formula consists of 924 conjuncts, 125 conjunts are in the unsatisfiable core [2023-11-29 07:19:26,482 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:19:26,488 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2023-11-29 07:19:27,098 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-11-29 07:19:27,139 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2023-11-29 07:19:27,139 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13 [2023-11-29 07:19:27,271 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 11 treesize of output 7 [2023-11-29 07:19:27,287 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2023-11-29 07:19:27,608 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 10 [2023-11-29 07:19:27,614 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2023-11-29 07:19:29,055 INFO L349 Elim1Store]: treesize reduction 19, result has 20.8 percent of original size [2023-11-29 07:19:29,055 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 50 treesize of output 45 [2023-11-29 07:19:29,063 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 11 [2023-11-29 07:19:29,400 INFO L349 Elim1Store]: treesize reduction 19, result has 20.8 percent of original size [2023-11-29 07:19:29,400 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 50 treesize of output 45 [2023-11-29 07:19:29,412 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 11 [2023-11-29 07:19:29,612 INFO L349 Elim1Store]: treesize reduction 19, result has 20.8 percent of original size [2023-11-29 07:19:29,612 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 50 treesize of output 45 [2023-11-29 07:19:29,624 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 11 [2023-11-29 07:19:29,649 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2023-11-29 07:19:29,660 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2023-11-29 07:19:29,667 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 0 proven. 87 refuted. 0 times theorem prover too weak. 903 trivial. 0 not checked. [2023-11-29 07:19:29,667 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 07:19:29,742 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (and (forall ((v_ArrVal_8534 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (select (select (store |c_#memory_$Pointer$#3.offset| |c_ULTIMATE.start_main_#t~mem75#1.base| v_ArrVal_8534) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (bvule (bvadd (_ bv8 32) .cse0) (bvadd (_ bv12 32) .cse0)))) (forall ((v_ArrVal_8535 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8534 (Array (_ BitVec 32) (_ BitVec 32)))) (bvule (bvadd (_ bv12 32) (select (select (store |c_#memory_$Pointer$#3.offset| |c_ULTIMATE.start_main_#t~mem75#1.base| v_ArrVal_8534) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)) (select |c_#length| (select (select (store |c_#memory_$Pointer$#3.base| |c_ULTIMATE.start_main_#t~mem75#1.base| v_ArrVal_8535) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))))) is different from false [2023-11-29 07:19:29,788 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (let ((.cse0 (select (select |c_#memory_$Pointer$#3.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (and (forall ((v_ArrVal_8535 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8534 (Array (_ BitVec 32) (_ BitVec 32)))) (bvule (bvadd (select (select (store |c_#memory_$Pointer$#3.offset| .cse0 v_ArrVal_8534) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) (_ bv12 32)) (select |c_#length| (select (select (store |c_#memory_$Pointer$#3.base| .cse0 v_ArrVal_8535) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))) (forall ((v_ArrVal_8534 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse2 (select (select (store |c_#memory_$Pointer$#3.offset| .cse0 v_ArrVal_8534) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (bvule (bvadd (_ bv8 32) .cse2) (bvadd .cse2 (_ bv12 32)))))))) is different from false [2023-11-29 07:19:29,928 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (and (forall ((v_ArrVal_8534 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8533 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8532 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (select (select (store (store |c_#memory_$Pointer$#3.offset| |c_ULTIMATE.start_main_#t~mem74#1.base| v_ArrVal_8533) (select (select (store |c_#memory_$Pointer$#3.base| |c_ULTIMATE.start_main_#t~mem74#1.base| v_ArrVal_8532) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_8534) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (bvule (bvadd (_ bv8 32) .cse0) (bvadd .cse0 (_ bv12 32))))) (forall ((v_ArrVal_8535 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8534 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8533 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8532 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse3 (store |c_#memory_$Pointer$#3.base| |c_ULTIMATE.start_main_#t~mem74#1.base| v_ArrVal_8532))) (let ((.cse2 (select (select .cse3 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (bvule (bvadd (select (select (store (store |c_#memory_$Pointer$#3.offset| |c_ULTIMATE.start_main_#t~mem74#1.base| v_ArrVal_8533) .cse2 v_ArrVal_8534) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) (_ bv12 32)) (select |c_#length| (select (select (store .cse3 .cse2 v_ArrVal_8535) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))))))) is different from false [2023-11-29 07:19:34,125 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse2 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (and (forall ((v_ArrVal_8627 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8626 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8535 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8534 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8533 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8532 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse4 (store |c_#memory_$Pointer$#3.base| |c_ULTIMATE.start_main_#t~mem73#1.base| v_ArrVal_8626))) (let ((.cse0 (select (select .cse4 |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (let ((.cse3 (store .cse4 .cse0 v_ArrVal_8532))) (let ((.cse1 (select (select .cse3 |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (bvule (bvadd (select (select (store (store (store |c_#memory_$Pointer$#3.offset| |c_ULTIMATE.start_main_#t~mem73#1.base| v_ArrVal_8627) .cse0 v_ArrVal_8533) .cse1 v_ArrVal_8534) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2) (_ bv12 32)) (select |c_#length| (select (select (store .cse3 .cse1 v_ArrVal_8535) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2)))))))) (forall ((v_ArrVal_8627 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8626 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8534 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8533 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8532 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse5 (select (select (let ((.cse7 (store |c_#memory_$Pointer$#3.base| |c_ULTIMATE.start_main_#t~mem73#1.base| v_ArrVal_8626))) (let ((.cse6 (select (select .cse7 |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (store (store (store |c_#memory_$Pointer$#3.offset| |c_ULTIMATE.start_main_#t~mem73#1.base| v_ArrVal_8627) .cse6 v_ArrVal_8533) (select (select (store .cse7 .cse6 v_ArrVal_8532) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2) v_ArrVal_8534))) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (bvule (bvadd (_ bv8 32) .cse5) (bvadd .cse5 (_ bv12 32))))))) is different from false [2023-11-29 07:19:34,140 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [125688346] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 07:19:34,140 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 07:19:34,140 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15] total 21 [2023-11-29 07:19:34,140 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1815303093] [2023-11-29 07:19:34,140 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 07:19:34,141 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2023-11-29 07:19:34,141 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 07:19:34,141 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2023-11-29 07:19:34,142 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=103, Invalid=518, Unknown=15, NotChecked=486, Total=1122 [2023-11-29 07:19:34,142 INFO L87 Difference]: Start difference. First operand 1707 states and 2346 transitions. Second operand has 22 states, 18 states have (on average 7.555555555555555) internal successors, (136), 18 states have internal predecessors, (136), 5 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-11-29 07:20:25,572 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:20:25,573 INFO L93 Difference]: Finished difference Result 2609 states and 3571 transitions. [2023-11-29 07:20:25,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-11-29 07:20:25,574 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 18 states have (on average 7.555555555555555) internal successors, (136), 18 states have internal predecessors, (136), 5 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Word has length 124 [2023-11-29 07:20:25,574 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:20:25,576 INFO L225 Difference]: With dead ends: 2609 [2023-11-29 07:20:25,576 INFO L226 Difference]: Without dead ends: 2609 [2023-11-29 07:20:25,577 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 271 GetRequests, 227 SyntacticMatches, 3 SemanticMatches, 41 ConstructedPredicates, 9 IntricatePredicates, 0 DeprecatedPredicates, 248 ImplicationChecksByTransitivity, 5.9s TimeCoverageRelationStatistics Valid=181, Invalid=962, Unknown=15, NotChecked=648, Total=1806 [2023-11-29 07:20:25,577 INFO L413 NwaCegarLoop]: 794 mSDtfsCounter, 1127 mSDsluCounter, 5879 mSDsCounter, 0 mSdLazyCounter, 13674 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 45.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1129 SdHoareTripleChecker+Valid, 6673 SdHoareTripleChecker+Invalid, 13702 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 13674 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 50.3s IncrementalHoareTripleChecker+Time [2023-11-29 07:20:25,578 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1129 Valid, 6673 Invalid, 13702 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [28 Valid, 13674 Invalid, 0 Unknown, 0 Unchecked, 50.3s Time] [2023-11-29 07:20:25,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2609 states. [2023-11-29 07:20:25,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2609 to 1706. [2023-11-29 07:20:25,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1706 states, 1177 states have (on average 1.927782497875956) internal successors, (2269), 1662 states have internal predecessors, (2269), 38 states have call successors, (38), 16 states have call predecessors, (38), 16 states have return successors, (37), 30 states have call predecessors, (37), 34 states have call successors, (37) [2023-11-29 07:20:25,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1706 states to 1706 states and 2344 transitions. [2023-11-29 07:20:25,600 INFO L78 Accepts]: Start accepts. Automaton has 1706 states and 2344 transitions. Word has length 124 [2023-11-29 07:20:25,601 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:20:25,601 INFO L495 AbstractCegarLoop]: Abstraction has 1706 states and 2344 transitions. [2023-11-29 07:20:25,601 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 18 states have (on average 7.555555555555555) internal successors, (136), 18 states have internal predecessors, (136), 5 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-11-29 07:20:25,601 INFO L276 IsEmpty]: Start isEmpty. Operand 1706 states and 2344 transitions. [2023-11-29 07:20:25,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2023-11-29 07:20:25,602 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:20:25,602 INFO L195 NwaCegarLoop]: trace histogram [44, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:20:25,613 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5e2f426-a57a-4666-aeaf-099abc5557cc/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 (38)] Ended with exit code 0 [2023-11-29 07:20:25,849 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5e2f426-a57a-4666-aeaf-099abc5557cc/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 --incremental --print-success --lang smt (39)] Ended with exit code 0 [2023-11-29 07:20:26,002 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 38 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5e2f426-a57a-4666-aeaf-099abc5557cc/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=3,39 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5e2f426-a57a-4666-aeaf-099abc5557cc/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 --incremental --print-success --lang smt [2023-11-29 07:20:26,003 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr90REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, alt_mallocErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, alt_mallocErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 628 more)] === [2023-11-29 07:20:26,003 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:20:26,003 INFO L85 PathProgramCache]: Analyzing trace with hash 316818661, now seen corresponding path program 1 times [2023-11-29 07:20:26,004 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 07:20:26,004 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [620497608] [2023-11-29 07:20:26,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:20:26,004 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 07:20:26,004 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5e2f426-a57a-4666-aeaf-099abc5557cc/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 07:20:26,005 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5e2f426-a57a-4666-aeaf-099abc5557cc/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 07:20:26,006 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5e2f426-a57a-4666-aeaf-099abc5557cc/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 (40)] Waiting until timeout for monitored process [2023-11-29 07:20:27,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:20:27,419 INFO L262 TraceCheckSpWp]: Trace formula consists of 952 conjuncts, 69 conjunts are in the unsatisfiable core [2023-11-29 07:20:27,428 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:20:27,433 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2023-11-29 07:20:27,802 INFO L349 Elim1Store]: treesize reduction 22, result has 35.3 percent of original size [2023-11-29 07:20:27,802 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 19 treesize of output 27 [2023-11-29 07:20:27,866 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2023-11-29 07:20:28,067 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 12 [2023-11-29 07:20:30,121 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2023-11-29 07:20:30,121 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 44 treesize of output 43 [2023-11-29 07:20:30,355 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2023-11-29 07:20:30,355 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 44 treesize of output 43 [2023-11-29 07:20:30,541 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2023-11-29 07:20:30,541 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 44 treesize of output 43 [2023-11-29 07:20:30,732 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2023-11-29 07:20:30,732 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 44 treesize of output 43 [2023-11-29 07:20:30,754 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 15 [2023-11-29 07:20:30,853 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 0 proven. 87 refuted. 0 times theorem prover too weak. 903 trivial. 0 not checked. [2023-11-29 07:20:30,853 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 07:20:31,008 WARN L854 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_9098 (Array (_ BitVec 32) (_ BitVec 32)))) (= (bvadd (select |c_#valid| (select (select (store |c_#memory_$Pointer$#3.base| |c_ULTIMATE.start_main_#t~mem76#1.base| v_ArrVal_9098) |c_ULTIMATE.start_main_~user~0#1.base|) (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (_ bv1 1)) (_ bv0 1))) is different from false [2023-11-29 07:20:31,029 WARN L854 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_9098 (Array (_ BitVec 32) (_ BitVec 32)))) (= (bvadd (select |c_#valid| (let ((.cse0 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (select (select (store |c_#memory_$Pointer$#3.base| (select (select |c_#memory_$Pointer$#3.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse0) v_ArrVal_9098) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0))) (_ bv1 1)) (_ bv0 1))) is different from false [2023-11-29 07:20:31,055 WARN L854 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_9098 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_9097 (Array (_ BitVec 32) (_ BitVec 32)))) (= (_ bv0 1) (bvadd (select |c_#valid| (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (select (select (let ((.cse0 (store |c_#memory_$Pointer$#3.base| |c_ULTIMATE.start_main_#t~mem75#1.base| v_ArrVal_9097))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_9098)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (_ bv1 1)))) is different from false [2023-11-29 07:20:31,079 WARN L854 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_9098 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_9097 (Array (_ BitVec 32) (_ BitVec 32)))) (= (_ bv0 1) (bvadd (select |c_#valid| (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (select (select (let ((.cse0 (store |c_#memory_$Pointer$#3.base| (select (select |c_#memory_$Pointer$#3.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_9097))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_9098)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (_ bv1 1)))) is different from false [2023-11-29 07:20:31,105 WARN L854 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_9098 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_9097 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_9096 (Array (_ BitVec 32) (_ BitVec 32)))) (= (bvadd (select |c_#valid| (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (select (select (let ((.cse0 (let ((.cse2 (store |c_#memory_$Pointer$#3.base| |c_ULTIMATE.start_main_#t~mem74#1.base| v_ArrVal_9096))) (store .cse2 (select (select .cse2 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_9097)))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_9098)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (_ bv1 1)) (_ bv0 1))) is different from false [2023-11-29 07:20:31,135 WARN L854 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_9098 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_9097 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_9096 (Array (_ BitVec 32) (_ BitVec 32)))) (= (bvadd (select |c_#valid| (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (select (select (let ((.cse0 (let ((.cse2 (store |c_#memory_$Pointer$#3.base| (select (select |c_#memory_$Pointer$#3.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_9096))) (store .cse2 (select (select .cse2 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_9097)))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_9098)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (_ bv1 1)) (_ bv0 1))) is different from false [2023-11-29 07:20:31,832 WARN L854 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_9144 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_9098 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_9097 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_9096 (Array (_ BitVec 32) (_ BitVec 32)))) (= (bvadd (_ bv1 1) (select |c_#valid| (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (select (select (let ((.cse0 (let ((.cse2 (let ((.cse3 (store |c_#memory_$Pointer$#3.base| |c_ULTIMATE.start_main_#t~mem73#1.base| v_ArrVal_9144))) (store .cse3 (select (select .cse3 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_9096)))) (store .cse2 (select (select .cse2 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_9097)))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_9098)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))) (_ bv0 1))) is different from false [2023-11-29 07:20:31,839 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 07:20:31,839 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [620497608] [2023-11-29 07:20:31,840 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [620497608] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 07:20:31,840 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [449402423] [2023-11-29 07:20:31,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:20:31,840 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-29 07:20:31,840 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5e2f426-a57a-4666-aeaf-099abc5557cc/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 [2023-11-29 07:20:31,841 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5e2f426-a57a-4666-aeaf-099abc5557cc/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-29 07:20:31,842 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5e2f426-a57a-4666-aeaf-099abc5557cc/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 --incremental --print-success --lang smt (41)] Waiting until timeout for monitored process [2023-11-29 07:20:38,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:20:38,977 INFO L262 TraceCheckSpWp]: Trace formula consists of 952 conjuncts, 73 conjunts are in the unsatisfiable core [2023-11-29 07:20:38,986 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:20:38,995 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2023-11-29 07:20:39,726 INFO L349 Elim1Store]: treesize reduction 22, result has 35.3 percent of original size [2023-11-29 07:20:39,726 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 19 treesize of output 27 [2023-11-29 07:20:39,850 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2023-11-29 07:20:40,199 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 12 [2023-11-29 07:20:42,092 INFO L349 Elim1Store]: treesize reduction 19, result has 20.8 percent of original size [2023-11-29 07:20:42,093 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 36 treesize of output 35 [2023-11-29 07:20:42,439 INFO L349 Elim1Store]: treesize reduction 19, result has 20.8 percent of original size [2023-11-29 07:20:42,439 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 36 treesize of output 35 [2023-11-29 07:20:42,658 INFO L349 Elim1Store]: treesize reduction 19, result has 20.8 percent of original size [2023-11-29 07:20:42,658 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 36 treesize of output 35 [2023-11-29 07:20:42,896 INFO L349 Elim1Store]: treesize reduction 19, result has 20.8 percent of original size [2023-11-29 07:20:42,896 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 36 treesize of output 35 [2023-11-29 07:20:42,918 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 15 [2023-11-29 07:20:42,936 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 0 proven. 87 refuted. 0 times theorem prover too weak. 903 trivial. 0 not checked. [2023-11-29 07:20:42,936 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 07:20:42,965 WARN L854 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_9616 (Array (_ BitVec 32) (_ BitVec 32)))) (= (_ bv0 1) (bvadd (_ bv1 1) (select |c_#valid| (select (select (store |c_#memory_$Pointer$#3.base| |c_ULTIMATE.start_main_#t~mem76#1.base| v_ArrVal_9616) |c_ULTIMATE.start_main_~user~0#1.base|) (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|)))))) is different from false [2023-11-29 07:20:42,986 WARN L854 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_9616 (Array (_ BitVec 32) (_ BitVec 32)))) (= (_ bv0 1) (bvadd (select |c_#valid| (let ((.cse0 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (select (select (store |c_#memory_$Pointer$#3.base| (select (select |c_#memory_$Pointer$#3.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse0) v_ArrVal_9616) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0))) (_ bv1 1)))) is different from false [2023-11-29 07:20:43,010 WARN L854 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_9616 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_9615 (Array (_ BitVec 32) (_ BitVec 32)))) (= (_ bv0 1) (bvadd (select |c_#valid| (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (select (select (let ((.cse0 (store |c_#memory_$Pointer$#3.base| |c_ULTIMATE.start_main_#t~mem75#1.base| v_ArrVal_9615))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_9616)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (_ bv1 1)))) is different from false [2023-11-29 07:20:43,034 WARN L854 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_9616 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_9615 (Array (_ BitVec 32) (_ BitVec 32)))) (= (_ bv0 1) (bvadd (select |c_#valid| (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (select (select (let ((.cse0 (store |c_#memory_$Pointer$#3.base| (select (select |c_#memory_$Pointer$#3.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_9615))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_9616)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (_ bv1 1)))) is different from false [2023-11-29 07:20:43,061 WARN L854 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_9616 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_9615 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_9614 (Array (_ BitVec 32) (_ BitVec 32)))) (= (_ bv0 1) (bvadd (select |c_#valid| (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (select (select (let ((.cse0 (let ((.cse2 (store |c_#memory_$Pointer$#3.base| |c_ULTIMATE.start_main_#t~mem74#1.base| v_ArrVal_9614))) (store .cse2 (select (select .cse2 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_9615)))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_9616)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (_ bv1 1)))) is different from false [2023-11-29 07:20:43,098 WARN L854 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_9616 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_9615 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_9614 (Array (_ BitVec 32) (_ BitVec 32)))) (= (bvadd (select |c_#valid| (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (select (select (let ((.cse0 (let ((.cse2 (store |c_#memory_$Pointer$#3.base| (select (select |c_#memory_$Pointer$#3.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_9614))) (store .cse2 (select (select .cse2 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_9615)))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_9616)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (_ bv1 1)) (_ bv0 1))) is different from false [2023-11-29 07:20:43,816 WARN L854 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_9662 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_9616 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_9615 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_9614 (Array (_ BitVec 32) (_ BitVec 32)))) (= (_ bv0 1) (bvadd (select |c_#valid| (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (select (select (let ((.cse0 (let ((.cse2 (let ((.cse3 (store |c_#memory_$Pointer$#3.base| |c_ULTIMATE.start_main_#t~mem73#1.base| v_ArrVal_9662))) (store .cse3 (select (select .cse3 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_9614)))) (store .cse2 (select (select .cse2 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_9615)))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_9616)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (_ bv1 1)))) is different from false [2023-11-29 07:20:43,823 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [449402423] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 07:20:43,823 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 07:20:43,824 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15] total 22 [2023-11-29 07:20:43,824 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1088357813] [2023-11-29 07:20:43,824 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 07:20:43,824 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2023-11-29 07:20:43,824 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 07:20:43,825 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2023-11-29 07:20:43,825 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=128, Invalid=514, Unknown=14, NotChecked=826, Total=1482 [2023-11-29 07:20:43,826 INFO L87 Difference]: Start difference. First operand 1706 states and 2344 transitions. Second operand has 23 states, 19 states have (on average 7.368421052631579) internal successors, (140), 20 states have internal predecessors, (140), 5 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-11-29 07:20:48,741 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 07:20:52,776 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 07:20:56,841 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 07:21:00,851 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 07:21:18,516 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 07:21:18,517 INFO L93 Difference]: Finished difference Result 2089 states and 2852 transitions. [2023-11-29 07:21:18,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-11-29 07:21:18,517 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 19 states have (on average 7.368421052631579) internal successors, (140), 20 states have internal predecessors, (140), 5 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Word has length 126 [2023-11-29 07:21:18,518 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 07:21:18,519 INFO L225 Difference]: With dead ends: 2089 [2023-11-29 07:21:18,519 INFO L226 Difference]: Without dead ends: 2089 [2023-11-29 07:21:18,520 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 275 GetRequests, 230 SyntacticMatches, 3 SemanticMatches, 42 ConstructedPredicates, 14 IntricatePredicates, 0 DeprecatedPredicates, 208 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=163, Invalid=749, Unknown=14, NotChecked=966, Total=1892 [2023-11-29 07:21:18,520 INFO L413 NwaCegarLoop]: 565 mSDtfsCounter, 723 mSDsluCounter, 3502 mSDsCounter, 0 mSdLazyCounter, 4854 mSolverCounterSat, 25 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 32.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 725 SdHoareTripleChecker+Valid, 4067 SdHoareTripleChecker+Invalid, 4883 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 4854 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 34.2s IncrementalHoareTripleChecker+Time [2023-11-29 07:21:18,521 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [725 Valid, 4067 Invalid, 4883 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [25 Valid, 4854 Invalid, 4 Unknown, 0 Unchecked, 34.2s Time] [2023-11-29 07:21:18,522 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2089 states. [2023-11-29 07:21:18,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2089 to 1705. [2023-11-29 07:21:18,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1705 states, 1177 states have (on average 1.9260832625318607) internal successors, (2267), 1661 states have internal predecessors, (2267), 38 states have call successors, (38), 16 states have call predecessors, (38), 16 states have return successors, (37), 30 states have call predecessors, (37), 34 states have call successors, (37) [2023-11-29 07:21:18,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1705 states to 1705 states and 2342 transitions. [2023-11-29 07:21:18,550 INFO L78 Accepts]: Start accepts. Automaton has 1705 states and 2342 transitions. Word has length 126 [2023-11-29 07:21:18,550 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 07:21:18,550 INFO L495 AbstractCegarLoop]: Abstraction has 1705 states and 2342 transitions. [2023-11-29 07:21:18,550 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 19 states have (on average 7.368421052631579) internal successors, (140), 20 states have internal predecessors, (140), 5 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-11-29 07:21:18,551 INFO L276 IsEmpty]: Start isEmpty. Operand 1705 states and 2342 transitions. [2023-11-29 07:21:18,551 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2023-11-29 07:21:18,551 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 07:21:18,552 INFO L195 NwaCegarLoop]: trace histogram [44, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:21:18,576 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5e2f426-a57a-4666-aeaf-099abc5557cc/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 --incremental --print-success --lang smt (41)] Ended with exit code 0 [2023-11-29 07:21:18,766 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5e2f426-a57a-4666-aeaf-099abc5557cc/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 (40)] Ended with exit code 0 [2023-11-29 07:21:18,952 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 41 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5e2f426-a57a-4666-aeaf-099abc5557cc/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 --incremental --print-success --lang smt,40 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5e2f426-a57a-4666-aeaf-099abc5557cc/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 07:21:18,953 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr91REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, alt_mallocErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, alt_mallocErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 628 more)] === [2023-11-29 07:21:18,953 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:21:18,953 INFO L85 PathProgramCache]: Analyzing trace with hash 316818662, now seen corresponding path program 1 times [2023-11-29 07:21:18,954 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 07:21:18,954 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [956263695] [2023-11-29 07:21:18,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:21:18,954 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 07:21:18,954 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5e2f426-a57a-4666-aeaf-099abc5557cc/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 07:21:18,955 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5e2f426-a57a-4666-aeaf-099abc5557cc/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 07:21:18,956 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5e2f426-a57a-4666-aeaf-099abc5557cc/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 (42)] Waiting until timeout for monitored process [2023-11-29 07:21:20,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:21:20,492 INFO L262 TraceCheckSpWp]: Trace formula consists of 952 conjuncts, 126 conjunts are in the unsatisfiable core [2023-11-29 07:21:20,502 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 07:21:20,507 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2023-11-29 07:21:20,826 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-11-29 07:21:20,919 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2023-11-29 07:21:20,919 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13 [2023-11-29 07:21:20,984 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 13 treesize of output 9 [2023-11-29 07:21:21,013 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2023-11-29 07:21:21,224 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 10 [2023-11-29 07:21:21,232 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2023-11-29 07:21:23,065 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2023-11-29 07:21:23,065 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 62 treesize of output 57 [2023-11-29 07:21:23,074 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 13 [2023-11-29 07:21:23,319 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2023-11-29 07:21:23,319 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 62 treesize of output 57 [2023-11-29 07:21:23,327 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 13 [2023-11-29 07:21:23,515 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2023-11-29 07:21:23,515 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 62 treesize of output 57 [2023-11-29 07:21:23,536 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 13 [2023-11-29 07:21:23,725 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2023-11-29 07:21:23,725 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 62 treesize of output 57 [2023-11-29 07:21:23,747 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 13 [2023-11-29 07:21:23,765 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 13 [2023-11-29 07:21:23,777 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2023-11-29 07:21:23,855 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 0 proven. 87 refuted. 0 times theorem prover too weak. 903 trivial. 0 not checked. [2023-11-29 07:21:23,856 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 07:21:24,201 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse0 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (and (forall ((v_ArrVal_10182 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_10181 (Array (_ BitVec 32) (_ BitVec 32)))) (bvule (bvadd (select (select (store |c_#memory_$Pointer$#3.offset| |c_ULTIMATE.start_main_#t~mem76#1.base| v_ArrVal_10182) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0) (_ bv24 32)) (select |c_#length| (select (select (store |c_#memory_$Pointer$#3.base| |c_ULTIMATE.start_main_#t~mem76#1.base| v_ArrVal_10181) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0)))) (forall ((v_ArrVal_10182 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse1 (select (select (store |c_#memory_$Pointer$#3.offset| |c_ULTIMATE.start_main_#t~mem76#1.base| v_ArrVal_10182) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0))) (bvule (bvadd .cse1 (_ bv20 32)) (bvadd .cse1 (_ bv24 32))))))) is different from false [2023-11-29 07:21:24,252 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse2 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (let ((.cse1 (select (select |c_#memory_$Pointer$#3.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (and (forall ((v_ArrVal_10182 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (select (select (store |c_#memory_$Pointer$#3.offset| .cse1 v_ArrVal_10182) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (bvule (bvadd .cse0 (_ bv20 32)) (bvadd .cse0 (_ bv24 32))))) (forall ((v_ArrVal_10182 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_10181 (Array (_ BitVec 32) (_ BitVec 32)))) (bvule (bvadd (select (select (store |c_#memory_$Pointer$#3.offset| .cse1 v_ArrVal_10182) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2) (_ bv24 32)) (select |c_#length| (select (select (store |c_#memory_$Pointer$#3.base| .cse1 v_ArrVal_10181) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))))))) is different from false [2023-11-29 07:21:24,401 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (and (forall ((v_ArrVal_10179 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_10182 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_10180 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (select (select (store (store |c_#memory_$Pointer$#3.offset| |c_ULTIMATE.start_main_#t~mem75#1.base| v_ArrVal_10180) (select (select (store |c_#memory_$Pointer$#3.base| |c_ULTIMATE.start_main_#t~mem75#1.base| v_ArrVal_10179) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_10182) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (bvule (bvadd (_ bv20 32) .cse0) (bvadd .cse0 (_ bv24 32))))) (forall ((v_ArrVal_10179 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_10182 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_10180 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_10181 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse3 (store |c_#memory_$Pointer$#3.base| |c_ULTIMATE.start_main_#t~mem75#1.base| v_ArrVal_10179))) (let ((.cse2 (select (select .cse3 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (bvule (bvadd (select (select (store (store |c_#memory_$Pointer$#3.offset| |c_ULTIMATE.start_main_#t~mem75#1.base| v_ArrVal_10180) .cse2 v_ArrVal_10182) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) (_ bv24 32)) (select |c_#length| (select (select (store .cse3 .cse2 v_ArrVal_10181) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))))))) is different from false [2023-11-29 07:21:24,561 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse2 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (let ((.cse0 (select (select |c_#memory_$Pointer$#3.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (and (forall ((v_ArrVal_10179 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_10182 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_10180 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_10181 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse3 (store |c_#memory_$Pointer$#3.base| .cse0 v_ArrVal_10179))) (let ((.cse1 (select (select .cse3 |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (bvule (bvadd (select (select (store (store |c_#memory_$Pointer$#3.offset| .cse0 v_ArrVal_10180) .cse1 v_ArrVal_10182) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2) (_ bv24 32)) (select |c_#length| (select (select (store .cse3 .cse1 v_ArrVal_10181) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2)))))) (forall ((v_ArrVal_10179 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_10182 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_10180 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse4 (select (select (store (store |c_#memory_$Pointer$#3.offset| .cse0 v_ArrVal_10180) (select (select (store |c_#memory_$Pointer$#3.base| .cse0 v_ArrVal_10179) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2) v_ArrVal_10182) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (bvule (bvadd .cse4 (_ bv20 32)) (bvadd .cse4 (_ bv24 32)))))))) is different from false [2023-11-29 07:21:25,594 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse3 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (and (forall ((v_ArrVal_10179 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_10177 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_10178 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_10182 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_10180 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (select (select (let ((.cse2 (store |c_#memory_$Pointer$#3.base| |c_ULTIMATE.start_main_#t~mem74#1.base| v_ArrVal_10177))) (let ((.cse1 (select (select .cse2 |c_ULTIMATE.start_main_~user~0#1.base|) .cse3))) (store (store (store |c_#memory_$Pointer$#3.offset| |c_ULTIMATE.start_main_#t~mem74#1.base| v_ArrVal_10178) .cse1 v_ArrVal_10180) (select (select (store .cse2 .cse1 v_ArrVal_10179) |c_ULTIMATE.start_main_~user~0#1.base|) .cse3) v_ArrVal_10182))) |c_ULTIMATE.start_main_~user~0#1.base|) .cse3))) (bvule (bvadd .cse0 (_ bv20 32)) (bvadd .cse0 (_ bv24 32))))) (forall ((v_ArrVal_10179 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_10177 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_10178 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_10182 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_10180 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_10181 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse7 (store |c_#memory_$Pointer$#3.base| |c_ULTIMATE.start_main_#t~mem74#1.base| v_ArrVal_10177))) (let ((.cse4 (select (select .cse7 |c_ULTIMATE.start_main_~user~0#1.base|) .cse3))) (let ((.cse6 (store .cse7 .cse4 v_ArrVal_10179))) (let ((.cse5 (select (select .cse6 |c_ULTIMATE.start_main_~user~0#1.base|) .cse3))) (bvule (bvadd (select (select (store (store (store |c_#memory_$Pointer$#3.offset| |c_ULTIMATE.start_main_#t~mem74#1.base| v_ArrVal_10178) .cse4 v_ArrVal_10180) .cse5 v_ArrVal_10182) |c_ULTIMATE.start_main_~user~0#1.base|) .cse3) (_ bv24 32)) (select |c_#length| (select (select (store .cse6 .cse5 v_ArrVal_10181) |c_ULTIMATE.start_main_~user~0#1.base|) .cse3)))))))))) is different from false [2023-11-29 07:21:26,692 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse3 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (let ((.cse0 (select (select |c_#memory_$Pointer$#3.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse3))) (and (forall ((v_ArrVal_10179 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_10177 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_10178 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_10182 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_10180 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_10181 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse5 (store |c_#memory_$Pointer$#3.base| .cse0 v_ArrVal_10177))) (let ((.cse1 (select (select .cse5 |c_ULTIMATE.start_main_~user~0#1.base|) .cse3))) (let ((.cse4 (store .cse5 .cse1 v_ArrVal_10179))) (let ((.cse2 (select (select .cse4 |c_ULTIMATE.start_main_~user~0#1.base|) .cse3))) (bvule (bvadd (select (select (store (store (store |c_#memory_$Pointer$#3.offset| .cse0 v_ArrVal_10178) .cse1 v_ArrVal_10180) .cse2 v_ArrVal_10182) |c_ULTIMATE.start_main_~user~0#1.base|) .cse3) (_ bv24 32)) (select |c_#length| (select (select (store .cse4 .cse2 v_ArrVal_10181) |c_ULTIMATE.start_main_~user~0#1.base|) .cse3)))))))) (forall ((v_ArrVal_10179 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_10177 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_10178 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_10182 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_10180 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse6 (select (select (let ((.cse8 (store |c_#memory_$Pointer$#3.base| .cse0 v_ArrVal_10177))) (let ((.cse7 (select (select .cse8 |c_ULTIMATE.start_main_~user~0#1.base|) .cse3))) (store (store (store |c_#memory_$Pointer$#3.offset| .cse0 v_ArrVal_10178) .cse7 v_ArrVal_10180) (select (select (store .cse8 .cse7 v_ArrVal_10179) |c_ULTIMATE.start_main_~user~0#1.base|) .cse3) v_ArrVal_10182))) |c_ULTIMATE.start_main_~user~0#1.base|) .cse3))) (bvule (bvadd .cse6 (_ bv20 32)) (bvadd .cse6 (_ bv24 32)))))))) is different from false [2023-11-29 07:21:33,228 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse3 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (and (forall ((v_ArrVal_10274 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_10273 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_10179 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_10177 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_10178 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_10182 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_10180 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_10181 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse6 (store |c_#memory_$Pointer$#3.base| |c_ULTIMATE.start_main_#t~mem73#1.base| v_ArrVal_10273))) (let ((.cse0 (select (select .cse6 |c_ULTIMATE.start_main_~user~0#1.base|) .cse3))) (let ((.cse5 (store .cse6 .cse0 v_ArrVal_10177))) (let ((.cse1 (select (select .cse5 |c_ULTIMATE.start_main_~user~0#1.base|) .cse3))) (let ((.cse4 (store .cse5 .cse1 v_ArrVal_10179))) (let ((.cse2 (select (select .cse4 |c_ULTIMATE.start_main_~user~0#1.base|) .cse3))) (bvule (bvadd (select (select (store (store (store (store |c_#memory_$Pointer$#3.offset| |c_ULTIMATE.start_main_#t~mem73#1.base| v_ArrVal_10274) .cse0 v_ArrVal_10178) .cse1 v_ArrVal_10180) .cse2 v_ArrVal_10182) |c_ULTIMATE.start_main_~user~0#1.base|) .cse3) (_ bv24 32)) (select |c_#length| (select (select (store .cse4 .cse2 v_ArrVal_10181) |c_ULTIMATE.start_main_~user~0#1.base|) .cse3)))))))))) (forall ((v_ArrVal_10274 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_10273 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_10179 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_10177 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_10178 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_10182 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_10180 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse7 (select (select (let ((.cse11 (store |c_#memory_$Pointer$#3.base| |c_ULTIMATE.start_main_#t~mem73#1.base| v_ArrVal_10273))) (let ((.cse8 (select (select .cse11 |c_ULTIMATE.start_main_~user~0#1.base|) .cse3))) (let ((.cse10 (store .cse11 .cse8 v_ArrVal_10177))) (let ((.cse9 (select (select .cse10 |c_ULTIMATE.start_main_~user~0#1.base|) .cse3))) (store (store (store (store |c_#memory_$Pointer$#3.offset| |c_ULTIMATE.start_main_#t~mem73#1.base| v_ArrVal_10274) .cse8 v_ArrVal_10178) .cse9 v_ArrVal_10180) (select (select (store .cse10 .cse9 v_ArrVal_10179) |c_ULTIMATE.start_main_~user~0#1.base|) .cse3) v_ArrVal_10182))))) |c_ULTIMATE.start_main_~user~0#1.base|) .cse3))) (bvule (bvadd (_ bv20 32) .cse7) (bvadd .cse7 (_ bv24 32))))))) is different from false [2023-11-29 07:21:33,258 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 07:21:33,258 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [956263695] [2023-11-29 07:21:33,258 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [956263695] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 07:21:33,258 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [162147167] [2023-11-29 07:21:33,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:21:33,258 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-29 07:21:33,258 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5e2f426-a57a-4666-aeaf-099abc5557cc/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 [2023-11-29 07:21:33,259 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5e2f426-a57a-4666-aeaf-099abc5557cc/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-29 07:21:33,261 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5e2f426-a57a-4666-aeaf-099abc5557cc/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 --incremental --print-success --lang smt (43)] Waiting until timeout for monitored process