./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test9-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b0c901c-e83d-4590-a928-e82091ec8a35/bin/uautomizer-verify-NlZe1sFDwI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b0c901c-e83d-4590-a928-e82091ec8a35/bin/uautomizer-verify-NlZe1sFDwI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b0c901c-e83d-4590-a928-e82091ec8a35/bin/uautomizer-verify-NlZe1sFDwI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b0c901c-e83d-4590-a928-e82091ec8a35/bin/uautomizer-verify-NlZe1sFDwI/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test9-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b0c901c-e83d-4590-a928-e82091ec8a35/bin/uautomizer-verify-NlZe1sFDwI/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b0c901c-e83d-4590-a928-e82091ec8a35/bin/uautomizer-verify-NlZe1sFDwI --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 6698dfe763688c38a478c53cfe3bc6bac092e445bf13ef44be53eb6068218c93 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-24 21:37:59,620 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-24 21:37:59,698 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b0c901c-e83d-4590-a928-e82091ec8a35/bin/uautomizer-verify-NlZe1sFDwI/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2023-11-24 21:37:59,703 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-24 21:37:59,704 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-24 21:37:59,730 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-24 21:37:59,731 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-24 21:37:59,732 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-24 21:37:59,733 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-24 21:37:59,734 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-24 21:37:59,734 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-24 21:37:59,735 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-24 21:37:59,736 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-24 21:37:59,737 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-24 21:37:59,737 INFO L153 SettingsManager]: * Use SBE=true [2023-11-24 21:37:59,738 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-24 21:37:59,739 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-24 21:37:59,740 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-24 21:37:59,740 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-24 21:37:59,741 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-24 21:37:59,742 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-24 21:37:59,742 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-24 21:37:59,743 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-24 21:37:59,744 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-24 21:37:59,744 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-24 21:37:59,745 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-24 21:37:59,745 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-24 21:37:59,746 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-24 21:37:59,747 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-24 21:37:59,747 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-24 21:37:59,748 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-24 21:37:59,748 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-24 21:37:59,749 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-24 21:37:59,749 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-24 21:37:59,750 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-24 21:37:59,750 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-24 21:37:59,751 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-24 21:37:59,751 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-24 21:37:59,752 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-24 21:37:59,752 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-24 21:37:59,753 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-24 21:37:59,754 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_7b0c901c-e83d-4590-a928-e82091ec8a35/bin/uautomizer-verify-NlZe1sFDwI/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b0c901c-e83d-4590-a928-e82091ec8a35/bin/uautomizer-verify-NlZe1sFDwI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6698dfe763688c38a478c53cfe3bc6bac092e445bf13ef44be53eb6068218c93 [2023-11-24 21:38:00,055 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-24 21:38:00,089 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-24 21:38:00,092 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-24 21:38:00,093 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-24 21:38:00,095 INFO L274 PluginConnector]: CDTParser initialized [2023-11-24 21:38:00,096 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b0c901c-e83d-4590-a928-e82091ec8a35/bin/uautomizer-verify-NlZe1sFDwI/../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test9-1.i [2023-11-24 21:38:03,373 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-24 21:38:03,899 INFO L384 CDTParser]: Found 1 translation units. [2023-11-24 21:38:03,900 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b0c901c-e83d-4590-a928-e82091ec8a35/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test9-1.i [2023-11-24 21:38:03,938 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b0c901c-e83d-4590-a928-e82091ec8a35/bin/uautomizer-verify-NlZe1sFDwI/data/54085768c/39832bba2b1a4e7b8f547100b710b048/FLAG15af8d506 [2023-11-24 21:38:03,958 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b0c901c-e83d-4590-a928-e82091ec8a35/bin/uautomizer-verify-NlZe1sFDwI/data/54085768c/39832bba2b1a4e7b8f547100b710b048 [2023-11-24 21:38:03,964 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-24 21:38:03,966 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-24 21:38:03,968 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-24 21:38:03,968 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-24 21:38:03,974 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-24 21:38:03,976 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 09:38:03" (1/1) ... [2023-11-24 21:38:03,978 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@444a90f3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:38:03, skipping insertion in model container [2023-11-24 21:38:03,978 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 09:38:03" (1/1) ... [2023-11-24 21:38:04,078 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-24 21:38:05,104 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 21:38:05,120 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) [2023-11-24 21:38:05,121 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@4f1c75ab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:38:05, skipping insertion in model container [2023-11-24 21:38:05,122 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-24 21:38:05,122 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2023-11-24 21:38:05,125 INFO L158 Benchmark]: Toolchain (without parser) took 1157.54ms. Allocated memory is still 159.4MB. Free memory was 117.2MB in the beginning and 84.2MB in the end (delta: 33.0MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2023-11-24 21:38:05,126 INFO L158 Benchmark]: CDTParser took 0.34ms. Allocated memory is still 159.4MB. Free memory is still 131.6MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-24 21:38:05,127 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1154.34ms. Allocated memory is still 159.4MB. Free memory was 116.8MB in the beginning and 84.2MB in the end (delta: 32.5MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2023-11-24 21:38:05,129 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34ms. Allocated memory is still 159.4MB. Free memory is still 131.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1154.34ms. Allocated memory is still 159.4MB. Free memory was 116.8MB in the beginning and 84.2MB in the end (delta: 32.5MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 2221]: Unsupported Syntax Found a cast between two array/pointer types of different sizes while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b0c901c-e83d-4590-a928-e82091ec8a35/bin/uautomizer-verify-NlZe1sFDwI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b0c901c-e83d-4590-a928-e82091ec8a35/bin/uautomizer-verify-NlZe1sFDwI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b0c901c-e83d-4590-a928-e82091ec8a35/bin/uautomizer-verify-NlZe1sFDwI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b0c901c-e83d-4590-a928-e82091ec8a35/bin/uautomizer-verify-NlZe1sFDwI/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test9-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b0c901c-e83d-4590-a928-e82091ec8a35/bin/uautomizer-verify-NlZe1sFDwI/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b0c901c-e83d-4590-a928-e82091ec8a35/bin/uautomizer-verify-NlZe1sFDwI --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 6698dfe763688c38a478c53cfe3bc6bac092e445bf13ef44be53eb6068218c93 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-24 21:38:07,751 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-24 21:38:07,891 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b0c901c-e83d-4590-a928-e82091ec8a35/bin/uautomizer-verify-NlZe1sFDwI/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2023-11-24 21:38:07,900 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-24 21:38:07,900 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-24 21:38:07,935 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-24 21:38:07,936 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-24 21:38:07,937 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-24 21:38:07,937 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-24 21:38:07,938 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-24 21:38:07,939 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-24 21:38:07,939 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-24 21:38:07,940 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-24 21:38:07,941 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-24 21:38:07,942 INFO L153 SettingsManager]: * Use SBE=true [2023-11-24 21:38:07,942 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-24 21:38:07,943 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-24 21:38:07,943 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-24 21:38:07,944 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-24 21:38:07,944 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-24 21:38:07,945 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-24 21:38:07,945 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-24 21:38:07,946 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-24 21:38:07,946 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-24 21:38:07,947 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-24 21:38:07,947 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-24 21:38:07,948 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-24 21:38:07,948 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-24 21:38:07,949 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-24 21:38:07,949 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-24 21:38:07,950 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-24 21:38:07,950 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-24 21:38:07,950 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-24 21:38:07,951 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-24 21:38:07,951 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-24 21:38:07,951 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-24 21:38:07,952 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-24 21:38:07,952 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-11-24 21:38:07,952 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-24 21:38:07,952 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-24 21:38:07,953 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-24 21:38:07,953 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-24 21:38:07,953 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-24 21:38:07,953 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-11-24 21:38:07,954 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_7b0c901c-e83d-4590-a928-e82091ec8a35/bin/uautomizer-verify-NlZe1sFDwI/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b0c901c-e83d-4590-a928-e82091ec8a35/bin/uautomizer-verify-NlZe1sFDwI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6698dfe763688c38a478c53cfe3bc6bac092e445bf13ef44be53eb6068218c93 [2023-11-24 21:38:08,360 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-24 21:38:08,384 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-24 21:38:08,387 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-24 21:38:08,389 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-24 21:38:08,389 INFO L274 PluginConnector]: CDTParser initialized [2023-11-24 21:38:08,391 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b0c901c-e83d-4590-a928-e82091ec8a35/bin/uautomizer-verify-NlZe1sFDwI/../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test9-1.i [2023-11-24 21:38:11,723 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-24 21:38:12,426 INFO L384 CDTParser]: Found 1 translation units. [2023-11-24 21:38:12,426 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b0c901c-e83d-4590-a928-e82091ec8a35/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test9-1.i [2023-11-24 21:38:12,473 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b0c901c-e83d-4590-a928-e82091ec8a35/bin/uautomizer-verify-NlZe1sFDwI/data/817d43cac/f8a6159bffaf41ae81677e974ac1acc7/FLAGb7226f6fe [2023-11-24 21:38:12,493 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b0c901c-e83d-4590-a928-e82091ec8a35/bin/uautomizer-verify-NlZe1sFDwI/data/817d43cac/f8a6159bffaf41ae81677e974ac1acc7 [2023-11-24 21:38:12,496 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-24 21:38:12,498 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-24 21:38:12,500 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-24 21:38:12,500 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-24 21:38:12,507 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-24 21:38:12,508 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 09:38:12" (1/1) ... [2023-11-24 21:38:12,510 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@67a2673d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:38:12, skipping insertion in model container [2023-11-24 21:38:12,510 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 09:38:12" (1/1) ... [2023-11-24 21:38:12,620 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-24 21:38:13,672 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 21:38:13,691 INFO L199 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2023-11-24 21:38:13,739 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-24 21:38:13,950 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 21:38:13,960 INFO L202 MainTranslator]: Completed pre-run [2023-11-24 21:38:14,138 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 21:38:14,187 WARN L675 CHandler]: The function memcmp is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 21:38:14,194 INFO L206 MainTranslator]: Completed translation [2023-11-24 21:38:14,195 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:38:14 WrapperNode [2023-11-24 21:38:14,195 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-24 21:38:14,196 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-24 21:38:14,196 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-24 21:38:14,196 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-24 21:38:14,205 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:38:14" (1/1) ... [2023-11-24 21:38:14,266 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:38:14" (1/1) ... [2023-11-24 21:38:14,398 INFO L138 Inliner]: procedures = 180, calls = 732, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 2873 [2023-11-24 21:38:14,398 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-24 21:38:14,399 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-24 21:38:14,399 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-24 21:38:14,409 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-24 21:38:14,421 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:38:14" (1/1) ... [2023-11-24 21:38:14,421 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:38:14" (1/1) ... [2023-11-24 21:38:14,442 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:38:14" (1/1) ... [2023-11-24 21:38:14,604 INFO L175 MemorySlicer]: Split 213 memory accesses to 4 slices as follows [34, 2, 5, 172]. 81 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [0, 2, 0, 0]. The 47 writes are split as follows [4, 0, 1, 42]. [2023-11-24 21:38:14,604 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:38:14" (1/1) ... [2023-11-24 21:38:14,605 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:38:14" (1/1) ... [2023-11-24 21:38:14,686 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:38:14" (1/1) ... [2023-11-24 21:38:14,715 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:38:14" (1/1) ... [2023-11-24 21:38:14,726 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:38:14" (1/1) ... [2023-11-24 21:38:14,753 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:38:14" (1/1) ... [2023-11-24 21:38:14,783 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-24 21:38:14,784 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-24 21:38:14,785 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-24 21:38:14,785 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-24 21:38:14,786 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:38:14" (1/1) ... [2023-11-24 21:38:14,793 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-24 21:38:14,806 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b0c901c-e83d-4590-a928-e82091ec8a35/bin/uautomizer-verify-NlZe1sFDwI/z3 [2023-11-24 21:38:14,822 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b0c901c-e83d-4590-a928-e82091ec8a35/bin/uautomizer-verify-NlZe1sFDwI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-24 21:38:14,853 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b0c901c-e83d-4590-a928-e82091ec8a35/bin/uautomizer-verify-NlZe1sFDwI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-24 21:38:14,873 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-11-24 21:38:14,873 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-11-24 21:38:14,874 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#0 [2023-11-24 21:38:14,874 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#1 [2023-11-24 21:38:14,874 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#2 [2023-11-24 21:38:14,876 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#3 [2023-11-24 21:38:14,877 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2023-11-24 21:38:14,877 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2023-11-24 21:38:14,878 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2023-11-24 21:38:14,878 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#3 [2023-11-24 21:38:14,878 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-24 21:38:14,878 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-24 21:38:14,879 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#0 [2023-11-24 21:38:14,879 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#1 [2023-11-24 21:38:14,879 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#2 [2023-11-24 21:38:14,880 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#3 [2023-11-24 21:38:14,880 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#0 [2023-11-24 21:38:14,880 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#1 [2023-11-24 21:38:14,880 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#2 [2023-11-24 21:38:14,880 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#3 [2023-11-24 21:38:14,881 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-24 21:38:14,881 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-24 21:38:14,881 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2023-11-24 21:38:14,881 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2023-11-24 21:38:14,881 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2023-11-24 21:38:14,882 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2023-11-24 21:38:14,883 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-24 21:38:14,883 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2023-11-24 21:38:14,883 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2023-11-24 21:38:14,883 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2023-11-24 21:38:14,884 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2023-11-24 21:38:14,885 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2023-11-24 21:38:14,885 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-24 21:38:14,885 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2023-11-24 21:38:14,886 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2023-11-24 21:38:14,886 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2023-11-24 21:38:14,886 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#3 [2023-11-24 21:38:14,886 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-11-24 21:38:14,887 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2023-11-24 21:38:14,887 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2023-11-24 21:38:14,887 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#3 [2023-11-24 21:38:14,887 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-24 21:38:14,888 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-24 21:38:15,189 INFO L241 CfgBuilder]: Building ICFG [2023-11-24 21:38:15,191 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-24 21:38:15,225 WARN L821 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2023-11-24 21:38:15,271 WARN L821 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2023-11-24 21:38:15,302 WARN L821 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2023-11-24 21:38:15,329 WARN L821 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2023-11-24 21:38:22,389 INFO L282 CfgBuilder]: Performing block encoding [2023-11-24 21:38:22,670 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-24 21:38:22,670 INFO L309 CfgBuilder]: Removed 54 assume(true) statements. [2023-11-24 21:38:22,672 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 09:38:22 BoogieIcfgContainer [2023-11-24 21:38:22,673 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-24 21:38:22,675 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-24 21:38:22,675 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-24 21:38:22,679 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-24 21:38:22,679 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 09:38:12" (1/3) ... [2023-11-24 21:38:22,680 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6820d8c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 09:38:22, skipping insertion in model container [2023-11-24 21:38:22,680 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:38:14" (2/3) ... [2023-11-24 21:38:22,682 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6820d8c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 09:38:22, skipping insertion in model container [2023-11-24 21:38:22,682 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 09:38:22" (3/3) ... [2023-11-24 21:38:22,684 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_BER_test9-1.i [2023-11-24 21:38:22,704 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-24 21:38:22,705 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 430 error locations. [2023-11-24 21:38:22,792 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-24 21:38:22,799 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;@35eaea95, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-24 21:38:22,799 INFO L358 AbstractCegarLoop]: Starting to check reachability of 430 error locations. [2023-11-24 21:38:22,812 INFO L276 IsEmpty]: Start isEmpty. Operand has 1791 states, 855 states have (on average 2.208187134502924) internal successors, (1888), 1784 states have internal predecessors, (1888), 505 states have call successors, (505), 3 states have call predecessors, (505), 3 states have return successors, (505), 6 states have call predecessors, (505), 505 states have call successors, (505) [2023-11-24 21:38:22,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2023-11-24 21:38:22,820 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 21:38:22,820 INFO L195 NwaCegarLoop]: trace histogram [1, 1] [2023-11-24 21:38:22,821 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 427 more)] === [2023-11-24 21:38:22,831 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 21:38:22,831 INFO L85 PathProgramCache]: Analyzing trace with hash 169712, now seen corresponding path program 1 times [2023-11-24 21:38:22,852 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-24 21:38:22,852 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [479510357] [2023-11-24 21:38:22,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 21:38:22,853 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 [2023-11-24 21:38:22,853 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b0c901c-e83d-4590-a928-e82091ec8a35/bin/uautomizer-verify-NlZe1sFDwI/mathsat [2023-11-24 21:38:22,855 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b0c901c-e83d-4590-a928-e82091ec8a35/bin/uautomizer-verify-NlZe1sFDwI/mathsat -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) [2023-11-24 21:38:22,856 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b0c901c-e83d-4590-a928-e82091ec8a35/bin/uautomizer-verify-NlZe1sFDwI/mathsat -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 [2023-11-24 21:38:23,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 21:38:23,043 INFO L262 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-24 21:38:23,052 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 21:38:23,128 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 [2023-11-24 21:38:23,141 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 21:38:23,142 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-24 21:38:23,142 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-24 21:38:23,143 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [479510357] [2023-11-24 21:38:23,143 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [479510357] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 21:38:23,144 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 21:38:23,144 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-24 21:38:23,146 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [877004690] [2023-11-24 21:38:23,147 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 21:38:23,197 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-24 21:38:23,198 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-24 21:38:23,228 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-24 21:38:23,229 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-24 21:38:23,237 INFO L87 Difference]: Start difference. First operand has 1791 states, 855 states have (on average 2.208187134502924) internal successors, (1888), 1784 states have internal predecessors, (1888), 505 states have call successors, (505), 3 states have call predecessors, (505), 3 states have return successors, (505), 6 states have call predecessors, (505), 505 states have call successors, (505) 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) [2023-11-24 21:38:26,957 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 21:38:26,960 INFO L93 Difference]: Finished difference Result 1779 states and 2825 transitions. [2023-11-24 21:38:26,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 21:38:26,963 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 [2023-11-24 21:38:26,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 21:38:27,026 INFO L225 Difference]: With dead ends: 1779 [2023-11-24 21:38:27,027 INFO L226 Difference]: Without dead ends: 1778 [2023-11-24 21:38:27,029 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 [2023-11-24 21:38:27,036 INFO L413 NwaCegarLoop]: 2422 mSDtfsCounter, 1719 mSDsluCounter, 41 mSDsCounter, 0 mSdLazyCounter, 949 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2222 SdHoareTripleChecker+Valid, 2463 SdHoareTripleChecker+Invalid, 965 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 949 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2023-11-24 21:38:27,038 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2222 Valid, 2463 Invalid, 965 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [16 Valid, 949 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2023-11-24 21:38:27,066 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1778 states. [2023-11-24 21:38:27,533 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1778 to 1777. [2023-11-24 21:38:27,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1777 states, 858 states have (on average 2.1165501165501164) internal successors, (1816), 1770 states have internal predecessors, (1816), 505 states have call successors, (505), 3 states have call predecessors, (505), 2 states have return successors, (503), 4 states have call predecessors, (503), 503 states have call successors, (503) [2023-11-24 21:38:27,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1777 states to 1777 states and 2824 transitions. [2023-11-24 21:38:27,558 INFO L78 Accepts]: Start accepts. Automaton has 1777 states and 2824 transitions. Word has length 2 [2023-11-24 21:38:27,559 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 21:38:27,559 INFO L495 AbstractCegarLoop]: Abstraction has 1777 states and 2824 transitions. [2023-11-24 21:38:27,559 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) [2023-11-24 21:38:27,560 INFO L276 IsEmpty]: Start isEmpty. Operand 1777 states and 2824 transitions. [2023-11-24 21:38:27,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2023-11-24 21:38:27,560 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 21:38:27,560 INFO L195 NwaCegarLoop]: trace histogram [1, 1] [2023-11-24 21:38:27,566 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b0c901c-e83d-4590-a928-e82091ec8a35/bin/uautomizer-verify-NlZe1sFDwI/mathsat -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)] Ended with exit code 0 [2023-11-24 21:38:27,763 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b0c901c-e83d-4590-a928-e82091ec8a35/bin/uautomizer-verify-NlZe1sFDwI/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-24 21:38:27,763 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 427 more)] === [2023-11-24 21:38:27,764 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 21:38:27,765 INFO L85 PathProgramCache]: Analyzing trace with hash 169713, now seen corresponding path program 1 times [2023-11-24 21:38:27,765 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-24 21:38:27,766 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1943913440] [2023-11-24 21:38:27,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 21:38:27,766 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 [2023-11-24 21:38:27,767 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b0c901c-e83d-4590-a928-e82091ec8a35/bin/uautomizer-verify-NlZe1sFDwI/mathsat [2023-11-24 21:38:27,768 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b0c901c-e83d-4590-a928-e82091ec8a35/bin/uautomizer-verify-NlZe1sFDwI/mathsat -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) [2023-11-24 21:38:27,807 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b0c901c-e83d-4590-a928-e82091ec8a35/bin/uautomizer-verify-NlZe1sFDwI/mathsat -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 [2023-11-24 21:38:27,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 21:38:27,933 INFO L262 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-24 21:38:27,935 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 21:38:27,954 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 [2023-11-24 21:38:27,972 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 21:38:27,973 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-24 21:38:27,973 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-24 21:38:27,973 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1943913440] [2023-11-24 21:38:27,974 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1943913440] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 21:38:27,975 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 21:38:27,978 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-24 21:38:27,979 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [363140423] [2023-11-24 21:38:27,980 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 21:38:27,981 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-24 21:38:27,981 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-24 21:38:27,982 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-24 21:38:27,983 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-24 21:38:27,983 INFO L87 Difference]: Start difference. First operand 1777 states and 2824 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) [2023-11-24 21:38:33,208 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 21:38:33,217 INFO L93 Difference]: Finished difference Result 2965 states and 5034 transitions. [2023-11-24 21:38:33,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 21:38:33,218 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 [2023-11-24 21:38:33,218 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 21:38:33,244 INFO L225 Difference]: With dead ends: 2965 [2023-11-24 21:38:33,245 INFO L226 Difference]: Without dead ends: 2965 [2023-11-24 21:38:33,245 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 [2023-11-24 21:38:33,247 INFO L413 NwaCegarLoop]: 2723 mSDtfsCounter, 1209 mSDsluCounter, 1887 mSDsCounter, 0 mSdLazyCounter, 1085 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1709 SdHoareTripleChecker+Valid, 4610 SdHoareTripleChecker+Invalid, 1090 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 1085 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2023-11-24 21:38:33,248 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1709 Valid, 4610 Invalid, 1090 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [5 Valid, 1085 Invalid, 0 Unknown, 0 Unchecked, 5.0s Time] [2023-11-24 21:38:33,257 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2965 states. [2023-11-24 21:38:33,650 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2965 to 2879. [2023-11-24 21:38:33,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2879 states, 1461 states have (on average 2.0698151950718686) internal successors, (3024), 2872 states have internal predecessors, (3024), 1005 states have call successors, (1005), 3 states have call predecessors, (1005), 2 states have return successors, (1003), 5 states have call predecessors, (1003), 1003 states have call successors, (1003) [2023-11-24 21:38:33,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2879 states to 2879 states and 5032 transitions. [2023-11-24 21:38:33,680 INFO L78 Accepts]: Start accepts. Automaton has 2879 states and 5032 transitions. Word has length 2 [2023-11-24 21:38:33,681 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 21:38:33,681 INFO L495 AbstractCegarLoop]: Abstraction has 2879 states and 5032 transitions. [2023-11-24 21:38:33,681 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) [2023-11-24 21:38:33,681 INFO L276 IsEmpty]: Start isEmpty. Operand 2879 states and 5032 transitions. [2023-11-24 21:38:33,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-24 21:38:33,682 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 21:38:33,682 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2023-11-24 21:38:33,685 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b0c901c-e83d-4590-a928-e82091ec8a35/bin/uautomizer-verify-NlZe1sFDwI/mathsat -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 [2023-11-24 21:38:33,884 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b0c901c-e83d-4590-a928-e82091ec8a35/bin/uautomizer-verify-NlZe1sFDwI/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-24 21:38:33,885 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 427 more)] === [2023-11-24 21:38:33,885 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 21:38:33,885 INFO L85 PathProgramCache]: Analyzing trace with hash 2114519226, now seen corresponding path program 1 times [2023-11-24 21:38:33,886 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-24 21:38:33,886 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [400029791] [2023-11-24 21:38:33,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 21:38:33,887 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 [2023-11-24 21:38:33,887 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b0c901c-e83d-4590-a928-e82091ec8a35/bin/uautomizer-verify-NlZe1sFDwI/mathsat [2023-11-24 21:38:33,888 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b0c901c-e83d-4590-a928-e82091ec8a35/bin/uautomizer-verify-NlZe1sFDwI/mathsat -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) [2023-11-24 21:38:33,912 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b0c901c-e83d-4590-a928-e82091ec8a35/bin/uautomizer-verify-NlZe1sFDwI/mathsat -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 [2023-11-24 21:38:34,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 21:38:34,079 INFO L262 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-24 21:38:34,082 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 21:38:34,098 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 [2023-11-24 21:38:34,106 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 [2023-11-24 21:38:34,187 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-24 21:38:34,188 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 [2023-11-24 21:38:34,211 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2023-11-24 21:38:34,212 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 [2023-11-24 21:38:34,235 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 21:38:34,236 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-24 21:38:34,236 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-24 21:38:34,236 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [400029791] [2023-11-24 21:38:34,237 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [400029791] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 21:38:34,237 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 21:38:34,237 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-24 21:38:34,237 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1520192512] [2023-11-24 21:38:34,238 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 21:38:34,238 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-24 21:38:34,238 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-24 21:38:34,239 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-24 21:38:34,239 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-24 21:38:34,239 INFO L87 Difference]: Start difference. First operand 2879 states and 5032 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) [2023-11-24 21:38:40,318 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 21:38:40,318 INFO L93 Difference]: Finished difference Result 2869 states and 5021 transitions. [2023-11-24 21:38:40,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-24 21:38:40,319 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 [2023-11-24 21:38:40,319 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 21:38:40,342 INFO L225 Difference]: With dead ends: 2869 [2023-11-24 21:38:40,342 INFO L226 Difference]: Without dead ends: 2869 [2023-11-24 21:38:40,342 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 [2023-11-24 21:38:40,343 INFO L413 NwaCegarLoop]: 2208 mSDtfsCounter, 3490 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 1169 mSolverCounterSat, 523 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3993 SdHoareTripleChecker+Valid, 2229 SdHoareTripleChecker+Invalid, 1692 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 523 IncrementalHoareTripleChecker+Valid, 1169 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.9s IncrementalHoareTripleChecker+Time [2023-11-24 21:38:40,344 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3993 Valid, 2229 Invalid, 1692 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [523 Valid, 1169 Invalid, 0 Unknown, 0 Unchecked, 5.9s Time] [2023-11-24 21:38:40,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2869 states. [2023-11-24 21:38:40,801 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2869 to 1766. [2023-11-24 21:38:40,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1766 states, 858 states have (on average 2.1025641025641026) internal successors, (1804), 1759 states have internal predecessors, (1804), 505 states have call successors, (505), 3 states have call predecessors, (505), 2 states have return successors, (503), 4 states have call predecessors, (503), 503 states have call successors, (503) [2023-11-24 21:38:40,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1766 states to 1766 states and 2812 transitions. [2023-11-24 21:38:40,815 INFO L78 Accepts]: Start accepts. Automaton has 1766 states and 2812 transitions. Word has length 6 [2023-11-24 21:38:40,816 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 21:38:40,816 INFO L495 AbstractCegarLoop]: Abstraction has 1766 states and 2812 transitions. [2023-11-24 21:38:40,816 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) [2023-11-24 21:38:40,816 INFO L276 IsEmpty]: Start isEmpty. Operand 1766 states and 2812 transitions. [2023-11-24 21:38:40,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-24 21:38:40,817 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 21:38:40,817 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-24 21:38:40,828 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b0c901c-e83d-4590-a928-e82091ec8a35/bin/uautomizer-verify-NlZe1sFDwI/mathsat -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 [2023-11-24 21:38:41,020 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b0c901c-e83d-4590-a928-e82091ec8a35/bin/uautomizer-verify-NlZe1sFDwI/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-24 21:38:41,020 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 427 more)] === [2023-11-24 21:38:41,021 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 21:38:41,021 INFO L85 PathProgramCache]: Analyzing trace with hash 1125586576, now seen corresponding path program 1 times [2023-11-24 21:38:41,022 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-24 21:38:41,022 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2125289987] [2023-11-24 21:38:41,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 21:38:41,022 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 [2023-11-24 21:38:41,022 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b0c901c-e83d-4590-a928-e82091ec8a35/bin/uautomizer-verify-NlZe1sFDwI/mathsat [2023-11-24 21:38:41,024 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b0c901c-e83d-4590-a928-e82091ec8a35/bin/uautomizer-verify-NlZe1sFDwI/mathsat -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) [2023-11-24 21:38:41,027 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b0c901c-e83d-4590-a928-e82091ec8a35/bin/uautomizer-verify-NlZe1sFDwI/mathsat -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 [2023-11-24 21:38:41,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 21:38:41,176 INFO L262 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-24 21:38:41,179 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 21:38:41,187 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 7 [2023-11-24 21:38:41,203 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 21:38:41,203 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-24 21:38:41,203 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-24 21:38:41,204 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2125289987] [2023-11-24 21:38:41,204 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2125289987] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 21:38:41,204 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 21:38:41,204 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-24 21:38:41,204 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1570091369] [2023-11-24 21:38:41,205 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 21:38:41,205 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-24 21:38:41,205 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-24 21:38:41,205 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-24 21:38:41,206 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-24 21:38:41,206 INFO L87 Difference]: Start difference. First operand 1766 states and 2812 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) [2023-11-24 21:38:44,459 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 21:38:44,460 INFO L93 Difference]: Finished difference Result 2909 states and 4977 transitions. [2023-11-24 21:38:44,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 21:38:44,465 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 [2023-11-24 21:38:44,465 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 21:38:44,488 INFO L225 Difference]: With dead ends: 2909 [2023-11-24 21:38:44,488 INFO L226 Difference]: Without dead ends: 2909 [2023-11-24 21:38:44,488 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 [2023-11-24 21:38:44,489 INFO L413 NwaCegarLoop]: 4427 mSDtfsCounter, 1722 mSDsluCounter, 2135 mSDsCounter, 0 mSdLazyCounter, 1048 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2225 SdHoareTripleChecker+Valid, 6562 SdHoareTripleChecker+Invalid, 1099 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 1048 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2023-11-24 21:38:44,490 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2225 Valid, 6562 Invalid, 1099 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 1048 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2023-11-24 21:38:44,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2909 states. [2023-11-24 21:38:44,861 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2909 to 1719. [2023-11-24 21:38:44,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1719 states, 858 states have (on average 2.0477855477855478) internal successors, (1757), 1712 states have internal predecessors, (1757), 505 states have call successors, (505), 3 states have call predecessors, (505), 2 states have return successors, (503), 4 states have call predecessors, (503), 503 states have call successors, (503) [2023-11-24 21:38:44,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1719 states to 1719 states and 2765 transitions. [2023-11-24 21:38:44,874 INFO L78 Accepts]: Start accepts. Automaton has 1719 states and 2765 transitions. Word has length 7 [2023-11-24 21:38:44,874 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 21:38:44,874 INFO L495 AbstractCegarLoop]: Abstraction has 1719 states and 2765 transitions. [2023-11-24 21:38:44,874 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) [2023-11-24 21:38:44,874 INFO L276 IsEmpty]: Start isEmpty. Operand 1719 states and 2765 transitions. [2023-11-24 21:38:44,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-24 21:38:44,875 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 21:38:44,875 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-24 21:38:44,879 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b0c901c-e83d-4590-a928-e82091ec8a35/bin/uautomizer-verify-NlZe1sFDwI/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2023-11-24 21:38:45,077 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b0c901c-e83d-4590-a928-e82091ec8a35/bin/uautomizer-verify-NlZe1sFDwI/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-24 21:38:45,078 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 427 more)] === [2023-11-24 21:38:45,078 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 21:38:45,078 INFO L85 PathProgramCache]: Analyzing trace with hash 1125586577, now seen corresponding path program 1 times [2023-11-24 21:38:45,078 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-24 21:38:45,079 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [47168758] [2023-11-24 21:38:45,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 21:38:45,079 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 [2023-11-24 21:38:45,079 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b0c901c-e83d-4590-a928-e82091ec8a35/bin/uautomizer-verify-NlZe1sFDwI/mathsat [2023-11-24 21:38:45,080 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b0c901c-e83d-4590-a928-e82091ec8a35/bin/uautomizer-verify-NlZe1sFDwI/mathsat -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) [2023-11-24 21:38:45,082 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b0c901c-e83d-4590-a928-e82091ec8a35/bin/uautomizer-verify-NlZe1sFDwI/mathsat -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 [2023-11-24 21:38:45,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 21:38:45,218 INFO L262 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-24 21:38:45,220 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 21:38:45,231 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 [2023-11-24 21:38:45,259 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 21:38:45,259 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-24 21:38:45,259 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-24 21:38:45,259 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [47168758] [2023-11-24 21:38:45,260 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [47168758] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 21:38:45,260 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 21:38:45,260 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-24 21:38:45,260 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [636326566] [2023-11-24 21:38:45,260 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 21:38:45,261 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-24 21:38:45,261 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-24 21:38:45,261 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-24 21:38:45,262 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-24 21:38:45,262 INFO L87 Difference]: Start difference. First operand 1719 states and 2765 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)