./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_nondet_test3-1.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_267af618-0cb9-4bea-bb1d-8fd94dbea1a5/bin/uautomizer-verify-NlZe1sFDwI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267af618-0cb9-4bea-bb1d-8fd94dbea1a5/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_267af618-0cb9-4bea-bb1d-8fd94dbea1a5/bin/uautomizer-verify-NlZe1sFDwI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267af618-0cb9-4bea-bb1d-8fd94dbea1a5/bin/uautomizer-verify-NlZe1sFDwI/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_nondet_test3-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267af618-0cb9-4bea-bb1d-8fd94dbea1a5/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_267af618-0cb9-4bea-bb1d-8fd94dbea1a5/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 6fd297418200393a9bb890e84311a80b6eacd7d5d7cdd65efb1397f8b8ab870f --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-24 21:44:47,630 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-24 21:44:47,716 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267af618-0cb9-4bea-bb1d-8fd94dbea1a5/bin/uautomizer-verify-NlZe1sFDwI/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2023-11-24 21:44:47,724 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-24 21:44:47,725 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-24 21:44:47,755 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-24 21:44:47,756 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-24 21:44:47,757 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-24 21:44:47,758 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-24 21:44:47,759 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-24 21:44:47,760 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-24 21:44:47,760 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-24 21:44:47,762 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-24 21:44:47,763 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-24 21:44:47,763 INFO L153 SettingsManager]: * Use SBE=true [2023-11-24 21:44:47,764 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-24 21:44:47,765 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-24 21:44:47,766 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-24 21:44:47,767 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-24 21:44:47,768 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-24 21:44:47,769 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-24 21:44:47,770 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-24 21:44:47,771 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-24 21:44:47,771 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-24 21:44:47,772 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-24 21:44:47,773 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-24 21:44:47,774 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-24 21:44:47,774 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-24 21:44:47,775 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-24 21:44:47,776 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-24 21:44:47,777 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-24 21:44:47,777 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-24 21:44:47,778 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-24 21:44:47,779 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-24 21:44:47,779 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-24 21:44:47,780 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-24 21:44:47,781 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-24 21:44:47,781 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-24 21:44:47,782 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-24 21:44:47,782 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-24 21:44:47,783 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-24 21:44:47,783 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_267af618-0cb9-4bea-bb1d-8fd94dbea1a5/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267af618-0cb9-4bea-bb1d-8fd94dbea1a5/bin/uautomizer-verify-NlZe1sFDwI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6fd297418200393a9bb890e84311a80b6eacd7d5d7cdd65efb1397f8b8ab870f [2023-11-24 21:44:48,139 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-24 21:44:48,181 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-24 21:44:48,187 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-24 21:44:48,189 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-24 21:44:48,191 INFO L274 PluginConnector]: CDTParser initialized [2023-11-24 21:44:48,192 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267af618-0cb9-4bea-bb1d-8fd94dbea1a5/bin/uautomizer-verify-NlZe1sFDwI/../../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_nondet_test3-1.i [2023-11-24 21:44:51,710 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-24 21:44:52,223 INFO L384 CDTParser]: Found 1 translation units. [2023-11-24 21:44:52,224 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267af618-0cb9-4bea-bb1d-8fd94dbea1a5/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_nondet_test3-1.i [2023-11-24 21:44:52,250 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267af618-0cb9-4bea-bb1d-8fd94dbea1a5/bin/uautomizer-verify-NlZe1sFDwI/data/2b34507b2/2ae9e4f1fd1648b48b56382512008a0e/FLAG728b4e39f [2023-11-24 21:44:52,267 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267af618-0cb9-4bea-bb1d-8fd94dbea1a5/bin/uautomizer-verify-NlZe1sFDwI/data/2b34507b2/2ae9e4f1fd1648b48b56382512008a0e [2023-11-24 21:44:52,271 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-24 21:44:52,277 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-24 21:44:52,279 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-24 21:44:52,279 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-24 21:44:52,285 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-24 21:44:52,285 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 09:44:52" (1/1) ... [2023-11-24 21:44:52,286 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@69df71e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:44:52, skipping insertion in model container [2023-11-24 21:44:52,287 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 09:44:52" (1/1) ... [2023-11-24 21:44:52,369 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-24 21:44:53,210 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 21:44:53,231 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 21:44:53,233 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@63af90d7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:44:53, skipping insertion in model container [2023-11-24 21:44:53,233 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-24 21:44:53,234 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2023-11-24 21:44:53,237 INFO L158 Benchmark]: Toolchain (without parser) took 958.72ms. Allocated memory is still 136.3MB. Free memory was 103.1MB in the beginning and 83.4MB in the end (delta: 19.7MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-11-24 21:44:53,238 INFO L158 Benchmark]: CDTParser took 0.36ms. Allocated memory is still 109.1MB. Free memory is still 63.9MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-24 21:44:53,239 INFO L158 Benchmark]: CACSL2BoogieTranslator took 955.43ms. Allocated memory is still 136.3MB. Free memory was 103.1MB in the beginning and 83.4MB in the end (delta: 19.7MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-11-24 21:44:53,242 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.36ms. Allocated memory is still 109.1MB. Free memory is still 63.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 955.43ms. Allocated memory is still 136.3MB. Free memory was 103.1MB in the beginning and 83.4MB in the end (delta: 19.7MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 739]: 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_267af618-0cb9-4bea-bb1d-8fd94dbea1a5/bin/uautomizer-verify-NlZe1sFDwI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267af618-0cb9-4bea-bb1d-8fd94dbea1a5/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_267af618-0cb9-4bea-bb1d-8fd94dbea1a5/bin/uautomizer-verify-NlZe1sFDwI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267af618-0cb9-4bea-bb1d-8fd94dbea1a5/bin/uautomizer-verify-NlZe1sFDwI/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_nondet_test3-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267af618-0cb9-4bea-bb1d-8fd94dbea1a5/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_267af618-0cb9-4bea-bb1d-8fd94dbea1a5/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 6fd297418200393a9bb890e84311a80b6eacd7d5d7cdd65efb1397f8b8ab870f --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-24 21:44:56,395 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-24 21:44:56,560 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267af618-0cb9-4bea-bb1d-8fd94dbea1a5/bin/uautomizer-verify-NlZe1sFDwI/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2023-11-24 21:44:56,571 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-24 21:44:56,573 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-24 21:44:56,623 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-24 21:44:56,624 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-24 21:44:56,625 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-24 21:44:56,627 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-24 21:44:56,633 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-24 21:44:56,634 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-24 21:44:56,635 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-24 21:44:56,636 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-24 21:44:56,638 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-24 21:44:56,639 INFO L153 SettingsManager]: * Use SBE=true [2023-11-24 21:44:56,640 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-24 21:44:56,640 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-24 21:44:56,641 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-24 21:44:56,641 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-24 21:44:56,642 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-24 21:44:56,643 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-24 21:44:56,643 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-24 21:44:56,644 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-24 21:44:56,645 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-24 21:44:56,645 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-24 21:44:56,646 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-24 21:44:56,646 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-24 21:44:56,647 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-24 21:44:56,648 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-24 21:44:56,648 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-24 21:44:56,651 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-24 21:44:56,651 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-24 21:44:56,652 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-24 21:44:56,652 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-24 21:44:56,652 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-24 21:44:56,653 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-24 21:44:56,654 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-24 21:44:56,655 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-11-24 21:44:56,655 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-24 21:44:56,656 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-24 21:44:56,656 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-24 21:44:56,657 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-24 21:44:56,657 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-24 21:44:56,657 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-11-24 21:44:56,658 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_267af618-0cb9-4bea-bb1d-8fd94dbea1a5/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267af618-0cb9-4bea-bb1d-8fd94dbea1a5/bin/uautomizer-verify-NlZe1sFDwI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6fd297418200393a9bb890e84311a80b6eacd7d5d7cdd65efb1397f8b8ab870f [2023-11-24 21:44:57,204 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-24 21:44:57,231 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-24 21:44:57,235 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-24 21:44:57,236 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-24 21:44:57,237 INFO L274 PluginConnector]: CDTParser initialized [2023-11-24 21:44:57,239 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267af618-0cb9-4bea-bb1d-8fd94dbea1a5/bin/uautomizer-verify-NlZe1sFDwI/../../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_nondet_test3-1.i [2023-11-24 21:45:00,816 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-24 21:45:01,302 INFO L384 CDTParser]: Found 1 translation units. [2023-11-24 21:45:01,304 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267af618-0cb9-4bea-bb1d-8fd94dbea1a5/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_nondet_test3-1.i [2023-11-24 21:45:01,339 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267af618-0cb9-4bea-bb1d-8fd94dbea1a5/bin/uautomizer-verify-NlZe1sFDwI/data/2d46a097f/83fea94cde6e48e5b0e30e97226e4885/FLAG0fad3f0ab [2023-11-24 21:45:01,355 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267af618-0cb9-4bea-bb1d-8fd94dbea1a5/bin/uautomizer-verify-NlZe1sFDwI/data/2d46a097f/83fea94cde6e48e5b0e30e97226e4885 [2023-11-24 21:45:01,358 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-24 21:45:01,360 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-24 21:45:01,362 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-24 21:45:01,362 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-24 21:45:01,369 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-24 21:45:01,370 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 09:45:01" (1/1) ... [2023-11-24 21:45:01,371 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6e1ff01f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:45:01, skipping insertion in model container [2023-11-24 21:45:01,372 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 09:45:01" (1/1) ... [2023-11-24 21:45:01,453 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-24 21:45:02,339 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 21:45:02,374 INFO L199 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2023-11-24 21:45:02,406 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-24 21:45:02,549 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 21:45:02,557 INFO L202 MainTranslator]: Completed pre-run [2023-11-24 21:45:02,753 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 21:45:02,849 WARN L675 CHandler]: The function memcmp is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 21:45:02,861 INFO L206 MainTranslator]: Completed translation [2023-11-24 21:45:02,862 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:45:02 WrapperNode [2023-11-24 21:45:02,862 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-24 21:45:02,863 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-24 21:45:02,863 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-24 21:45:02,864 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-24 21:45:02,871 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:45:02" (1/1) ... [2023-11-24 21:45:02,927 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:45:02" (1/1) ... [2023-11-24 21:45:03,042 INFO L138 Inliner]: procedures = 180, calls = 282, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1031 [2023-11-24 21:45:03,043 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-24 21:45:03,044 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-24 21:45:03,044 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-24 21:45:03,045 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-24 21:45:03,067 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:45:02" (1/1) ... [2023-11-24 21:45:03,068 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:45:02" (1/1) ... [2023-11-24 21:45:03,085 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:45:02" (1/1) ... [2023-11-24 21:45:03,210 INFO L175 MemorySlicer]: Split 259 memory accesses to 4 slices as follows [5, 2, 34, 218]. 84 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [0, 2, 0, 0]. The 55 writes are split as follows [1, 0, 4, 50]. [2023-11-24 21:45:03,210 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:45:02" (1/1) ... [2023-11-24 21:45:03,211 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:45:02" (1/1) ... [2023-11-24 21:45:03,268 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:45:02" (1/1) ... [2023-11-24 21:45:03,293 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:45:02" (1/1) ... [2023-11-24 21:45:03,315 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:45:02" (1/1) ... [2023-11-24 21:45:03,324 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:45:02" (1/1) ... [2023-11-24 21:45:03,353 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-24 21:45:03,358 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-24 21:45:03,360 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-24 21:45:03,360 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-24 21:45:03,361 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:45:02" (1/1) ... [2023-11-24 21:45:03,369 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-24 21:45:03,385 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267af618-0cb9-4bea-bb1d-8fd94dbea1a5/bin/uautomizer-verify-NlZe1sFDwI/z3 [2023-11-24 21:45:03,404 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267af618-0cb9-4bea-bb1d-8fd94dbea1a5/bin/uautomizer-verify-NlZe1sFDwI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-24 21:45:03,430 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267af618-0cb9-4bea-bb1d-8fd94dbea1a5/bin/uautomizer-verify-NlZe1sFDwI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-24 21:45:03,467 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#0 [2023-11-24 21:45:03,468 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#1 [2023-11-24 21:45:03,468 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#2 [2023-11-24 21:45:03,468 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#3 [2023-11-24 21:45:03,468 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2023-11-24 21:45:03,470 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2023-11-24 21:45:03,471 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2023-11-24 21:45:03,471 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#3 [2023-11-24 21:45:03,471 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-24 21:45:03,472 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-24 21:45:03,472 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#0 [2023-11-24 21:45:03,472 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#1 [2023-11-24 21:45:03,472 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#2 [2023-11-24 21:45:03,472 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#3 [2023-11-24 21:45:03,473 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#0 [2023-11-24 21:45:03,473 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#1 [2023-11-24 21:45:03,474 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#2 [2023-11-24 21:45:03,474 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#3 [2023-11-24 21:45:03,475 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-24 21:45:03,475 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-24 21:45:03,475 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2023-11-24 21:45:03,476 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2023-11-24 21:45:03,477 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2023-11-24 21:45:03,477 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2023-11-24 21:45:03,477 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-24 21:45:03,478 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2023-11-24 21:45:03,478 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2023-11-24 21:45:03,478 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2023-11-24 21:45:03,478 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2023-11-24 21:45:03,479 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2023-11-24 21:45:03,479 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2023-11-24 21:45:03,480 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2023-11-24 21:45:03,480 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2023-11-24 21:45:03,480 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#3 [2023-11-24 21:45:03,480 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-24 21:45:03,481 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-11-24 21:45:03,481 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2023-11-24 21:45:03,481 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2023-11-24 21:45:03,481 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#3 [2023-11-24 21:45:03,481 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-24 21:45:03,481 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-24 21:45:03,871 INFO L241 CfgBuilder]: Building ICFG [2023-11-24 21:45:03,874 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-24 21:45:03,880 WARN L821 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2023-11-24 21:45:03,978 WARN L821 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2023-11-24 21:45:04,023 WARN L821 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2023-11-24 21:45:04,064 WARN L821 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2023-11-24 21:45:09,880 INFO L282 CfgBuilder]: Performing block encoding [2023-11-24 21:45:10,118 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-24 21:45:10,119 INFO L309 CfgBuilder]: Removed 63 assume(true) statements. [2023-11-24 21:45:10,120 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 09:45:10 BoogieIcfgContainer [2023-11-24 21:45:10,120 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-24 21:45:10,123 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-24 21:45:10,124 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-24 21:45:10,129 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-24 21:45:10,129 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 09:45:01" (1/3) ... [2023-11-24 21:45:10,131 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58247ac6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 09:45:10, skipping insertion in model container [2023-11-24 21:45:10,132 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:45:02" (2/3) ... [2023-11-24 21:45:10,133 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58247ac6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 09:45:10, skipping insertion in model container [2023-11-24 21:45:10,133 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 09:45:10" (3/3) ... [2023-11-24 21:45:10,135 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_OAT_nondet_test3-1.i [2023-11-24 21:45:10,156 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-24 21:45:10,156 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 531 error locations. [2023-11-24 21:45:10,230 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-24 21:45:10,238 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;@32267b3d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-24 21:45:10,238 INFO L358 AbstractCegarLoop]: Starting to check reachability of 531 error locations. [2023-11-24 21:45:10,246 INFO L276 IsEmpty]: Start isEmpty. Operand has 964 states, 428 states have (on average 2.5257009345794392) internal successors, (1081), 957 states have internal predecessors, (1081), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-11-24 21:45:10,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2023-11-24 21:45:10,253 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 21:45:10,254 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2023-11-24 21:45:10,255 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr529ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 528 more)] === [2023-11-24 21:45:10,261 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 21:45:10,261 INFO L85 PathProgramCache]: Analyzing trace with hash 1685664, now seen corresponding path program 1 times [2023-11-24 21:45:10,275 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-24 21:45:10,275 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1113866265] [2023-11-24 21:45:10,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 21:45:10,276 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 21:45:10,277 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267af618-0cb9-4bea-bb1d-8fd94dbea1a5/bin/uautomizer-verify-NlZe1sFDwI/mathsat [2023-11-24 21:45:10,280 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267af618-0cb9-4bea-bb1d-8fd94dbea1a5/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 21:45:10,317 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267af618-0cb9-4bea-bb1d-8fd94dbea1a5/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 21:45:10,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 21:45:10,479 INFO L262 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-24 21:45:10,487 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 21:45:10,648 WARN L876 $PredicateComparison]: unable to prove that (exists ((|v_ULTIMATE.start_main_~#i~0#1.base_53| (_ BitVec 32))) (and (= (store |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#i~0#1.base_53| (_ bv0 1)) |c_#valid|) (= (_ bv0 1) (select |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#i~0#1.base_53|)))) is different from true [2023-11-24 21:45:10,651 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 21:45:10,652 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-24 21:45:10,653 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-24 21:45:10,653 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1113866265] [2023-11-24 21:45:10,654 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1113866265] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 21:45:10,655 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 21:45:10,655 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-24 21:45:10,657 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [700599623] [2023-11-24 21:45:10,658 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 21:45:10,663 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-24 21:45:10,664 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-24 21:45:10,707 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-24 21:45:10,708 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=4, Unknown=1, NotChecked=2, Total=12 [2023-11-24 21:45:10,712 INFO L87 Difference]: Start difference. First operand has 964 states, 428 states have (on average 2.5257009345794392) internal successors, (1081), 957 states have internal predecessors, (1081), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Second operand has 4 states, 3 states have (on average 1.0) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 21:45:14,693 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 21:45:14,693 INFO L93 Difference]: Finished difference Result 1319 states and 1410 transitions. [2023-11-24 21:45:14,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-24 21:45:14,701 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.0) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2023-11-24 21:45:14,702 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 21:45:14,727 INFO L225 Difference]: With dead ends: 1319 [2023-11-24 21:45:14,728 INFO L226 Difference]: Without dead ends: 1317 [2023-11-24 21:45:14,729 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=4, Unknown=1, NotChecked=2, Total=12 [2023-11-24 21:45:14,733 INFO L413 NwaCegarLoop]: 759 mSDtfsCounter, 393 mSDsluCounter, 469 mSDsCounter, 0 mSdLazyCounter, 807 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 395 SdHoareTripleChecker+Valid, 1228 SdHoareTripleChecker+Invalid, 2218 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 807 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 1411 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2023-11-24 21:45:14,734 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [395 Valid, 1228 Invalid, 2218 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 807 Invalid, 0 Unknown, 1411 Unchecked, 3.8s Time] [2023-11-24 21:45:14,762 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1317 states. [2023-11-24 21:45:14,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1317 to 953. [2023-11-24 21:45:14,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 953 states, 423 states have (on average 2.3640661938534278) internal successors, (1000), 946 states have internal predecessors, (1000), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-11-24 21:45:14,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 953 states to 953 states and 1010 transitions. [2023-11-24 21:45:14,884 INFO L78 Accepts]: Start accepts. Automaton has 953 states and 1010 transitions. Word has length 3 [2023-11-24 21:45:14,884 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 21:45:14,885 INFO L495 AbstractCegarLoop]: Abstraction has 953 states and 1010 transitions. [2023-11-24 21:45:14,885 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.0) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 21:45:14,885 INFO L276 IsEmpty]: Start isEmpty. Operand 953 states and 1010 transitions. [2023-11-24 21:45:14,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2023-11-24 21:45:14,886 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 21:45:14,886 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2023-11-24 21:45:14,899 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267af618-0cb9-4bea-bb1d-8fd94dbea1a5/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)] Forceful destruction successful, exit code 0 [2023-11-24 21:45:15,089 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267af618-0cb9-4bea-bb1d-8fd94dbea1a5/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 21:45:15,090 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 528 more)] === [2023-11-24 21:45:15,091 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 21:45:15,091 INFO L85 PathProgramCache]: Analyzing trace with hash 1684089, now seen corresponding path program 1 times [2023-11-24 21:45:15,091 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-24 21:45:15,092 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [731649096] [2023-11-24 21:45:15,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 21:45:15,092 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 21:45:15,092 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267af618-0cb9-4bea-bb1d-8fd94dbea1a5/bin/uautomizer-verify-NlZe1sFDwI/mathsat [2023-11-24 21:45:15,094 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267af618-0cb9-4bea-bb1d-8fd94dbea1a5/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 21:45:15,104 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267af618-0cb9-4bea-bb1d-8fd94dbea1a5/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 21:45:15,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 21:45:15,259 INFO L262 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-24 21:45:15,262 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 21:45:15,295 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 21:45:15,311 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 21:45:15,311 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-24 21:45:15,311 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-24 21:45:15,312 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [731649096] [2023-11-24 21:45:15,312 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [731649096] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 21:45:15,312 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 21:45:15,312 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-24 21:45:15,313 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1601095193] [2023-11-24 21:45:15,313 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 21:45:15,314 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-24 21:45:15,315 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-24 21:45:15,315 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-24 21:45:15,316 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-24 21:45:15,316 INFO L87 Difference]: Start difference. First operand 953 states and 1010 transitions. Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 21:45:17,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 21:45:17,380 INFO L93 Difference]: Finished difference Result 963 states and 1020 transitions. [2023-11-24 21:45:17,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 21:45:17,380 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2023-11-24 21:45:17,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 21:45:17,386 INFO L225 Difference]: With dead ends: 963 [2023-11-24 21:45:17,386 INFO L226 Difference]: Without dead ends: 963 [2023-11-24 21:45:17,386 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 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 21:45:17,388 INFO L413 NwaCegarLoop]: 525 mSDtfsCounter, 889 mSDsluCounter, 51 mSDsCounter, 0 mSdLazyCounter, 551 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 894 SdHoareTripleChecker+Valid, 576 SdHoareTripleChecker+Invalid, 568 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 551 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2023-11-24 21:45:17,389 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [894 Valid, 576 Invalid, 568 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 551 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2023-11-24 21:45:17,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 963 states. [2023-11-24 21:45:17,432 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 963 to 953. [2023-11-24 21:45:17,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 953 states, 432 states have (on average 2.3194444444444446) internal successors, (1002), 945 states have internal predecessors, (1002), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-11-24 21:45:17,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 953 states to 953 states and 1012 transitions. [2023-11-24 21:45:17,440 INFO L78 Accepts]: Start accepts. Automaton has 953 states and 1012 transitions. Word has length 3 [2023-11-24 21:45:17,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 21:45:17,441 INFO L495 AbstractCegarLoop]: Abstraction has 953 states and 1012 transitions. [2023-11-24 21:45:17,441 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 21:45:17,442 INFO L276 IsEmpty]: Start isEmpty. Operand 953 states and 1012 transitions. [2023-11-24 21:45:17,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2023-11-24 21:45:17,442 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 21:45:17,442 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2023-11-24 21:45:17,445 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267af618-0cb9-4bea-bb1d-8fd94dbea1a5/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 21:45:17,645 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267af618-0cb9-4bea-bb1d-8fd94dbea1a5/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 21:45:17,645 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 528 more)] === [2023-11-24 21:45:17,646 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 21:45:17,646 INFO L85 PathProgramCache]: Analyzing trace with hash 1684090, now seen corresponding path program 1 times [2023-11-24 21:45:17,646 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-24 21:45:17,646 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [481521004] [2023-11-24 21:45:17,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 21:45:17,647 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 21:45:17,647 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267af618-0cb9-4bea-bb1d-8fd94dbea1a5/bin/uautomizer-verify-NlZe1sFDwI/mathsat [2023-11-24 21:45:17,648 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267af618-0cb9-4bea-bb1d-8fd94dbea1a5/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 21:45:17,651 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267af618-0cb9-4bea-bb1d-8fd94dbea1a5/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 21:45:17,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 21:45:17,775 INFO L262 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-24 21:45:17,777 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 21:45:17,788 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 21:45:17,809 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 21:45:17,809 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-24 21:45:17,810 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-24 21:45:17,810 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [481521004] [2023-11-24 21:45:17,810 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [481521004] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 21:45:17,810 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 21:45:17,810 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-24 21:45:17,811 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1777600467] [2023-11-24 21:45:17,811 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 21:45:17,811 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-24 21:45:17,812 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-24 21:45:17,812 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-24 21:45:17,813 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-24 21:45:17,813 INFO L87 Difference]: Start difference. First operand 953 states and 1012 transitions. Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 21:45:22,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 21:45:22,180 INFO L93 Difference]: Finished difference Result 1317 states and 1409 transitions. [2023-11-24 21:45:22,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 21:45:22,185 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2023-11-24 21:45:22,185 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 21:45:22,194 INFO L225 Difference]: With dead ends: 1317 [2023-11-24 21:45:22,194 INFO L226 Difference]: Without dead ends: 1317 [2023-11-24 21:45:22,195 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 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 21:45:22,196 INFO L413 NwaCegarLoop]: 749 mSDtfsCounter, 392 mSDsluCounter, 479 mSDsCounter, 0 mSdLazyCounter, 770 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 394 SdHoareTripleChecker+Valid, 1228 SdHoareTripleChecker+Invalid, 775 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 770 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2023-11-24 21:45:22,197 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [394 Valid, 1228 Invalid, 775 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 770 Invalid, 0 Unknown, 0 Unchecked, 4.3s Time] [2023-11-24 21:45:22,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1317 states. [2023-11-24 21:45:22,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1317 to 1124. [2023-11-24 21:45:22,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1124 states, 603 states have (on average 2.295190713101161) internal successors, (1384), 1115 states have internal predecessors, (1384), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-11-24 21:45:22,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1124 states to 1124 states and 1396 transitions. [2023-11-24 21:45:22,243 INFO L78 Accepts]: Start accepts. Automaton has 1124 states and 1396 transitions. Word has length 3 [2023-11-24 21:45:22,243 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 21:45:22,244 INFO L495 AbstractCegarLoop]: Abstraction has 1124 states and 1396 transitions. [2023-11-24 21:45:22,244 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 21:45:22,244 INFO L276 IsEmpty]: Start isEmpty. Operand 1124 states and 1396 transitions. [2023-11-24 21:45:22,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-24 21:45:22,245 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 21:45:22,245 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-24 21:45:22,254 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267af618-0cb9-4bea-bb1d-8fd94dbea1a5/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)] Forceful destruction successful, exit code 0 [2023-11-24 21:45:22,447 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267af618-0cb9-4bea-bb1d-8fd94dbea1a5/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 21:45:22,448 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 528 more)] === [2023-11-24 21:45:22,448 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 21:45:22,449 INFO L85 PathProgramCache]: Analyzing trace with hash 514019011, now seen corresponding path program 1 times [2023-11-24 21:45:22,449 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-24 21:45:22,450 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1986220707] [2023-11-24 21:45:22,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 21:45:22,450 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 21:45:22,450 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267af618-0cb9-4bea-bb1d-8fd94dbea1a5/bin/uautomizer-verify-NlZe1sFDwI/mathsat [2023-11-24 21:45:22,480 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267af618-0cb9-4bea-bb1d-8fd94dbea1a5/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 21:45:22,488 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267af618-0cb9-4bea-bb1d-8fd94dbea1a5/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 21:45:22,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 21:45:22,667 INFO L262 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-24 21:45:22,670 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 21:45:22,694 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 21:45:22,704 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 21:45:22,817 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-24 21:45:22,820 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 21:45:22,843 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2023-11-24 21:45:22,844 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 21:45:22,875 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 21:45:22,876 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-24 21:45:22,876 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-24 21:45:22,876 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1986220707] [2023-11-24 21:45:22,876 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1986220707] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 21:45:22,876 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 21:45:22,877 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-24 21:45:22,877 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [174102046] [2023-11-24 21:45:22,877 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 21:45:22,877 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-24 21:45:22,877 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-24 21:45:22,878 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-24 21:45:22,878 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-24 21:45:22,878 INFO L87 Difference]: Start difference. First operand 1124 states and 1396 transitions. Second operand has 4 states, 3 states have (on average 2.3333333333333335) 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 21:45:26,206 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 21:45:26,206 INFO L93 Difference]: Finished difference Result 1127 states and 1400 transitions. [2023-11-24 21:45:26,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-24 21:45:26,208 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.3333333333333335) 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 21:45:26,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 21:45:26,215 INFO L225 Difference]: With dead ends: 1127 [2023-11-24 21:45:26,215 INFO L226 Difference]: Without dead ends: 1127 [2023-11-24 21:45:26,216 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 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 21:45:26,217 INFO L413 NwaCegarLoop]: 261 mSDtfsCounter, 973 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 831 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 978 SdHoareTripleChecker+Valid, 298 SdHoareTripleChecker+Invalid, 848 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 831 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2023-11-24 21:45:26,217 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [978 Valid, 298 Invalid, 848 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 831 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2023-11-24 21:45:26,221 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1127 states. [2023-11-24 21:45:26,240 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1127 to 942. [2023-11-24 21:45:26,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 942 states, 432 states have (on average 2.2893518518518516) internal successors, (989), 934 states have internal predecessors, (989), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-11-24 21:45:26,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 942 states to 942 states and 999 transitions. [2023-11-24 21:45:26,247 INFO L78 Accepts]: Start accepts. Automaton has 942 states and 999 transitions. Word has length 7 [2023-11-24 21:45:26,248 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 21:45:26,248 INFO L495 AbstractCegarLoop]: Abstraction has 942 states and 999 transitions. [2023-11-24 21:45:26,248 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.3333333333333335) 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 21:45:26,248 INFO L276 IsEmpty]: Start isEmpty. Operand 942 states and 999 transitions. [2023-11-24 21:45:26,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-24 21:45:26,249 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 21:45:26,249 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 21:45:26,256 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267af618-0cb9-4bea-bb1d-8fd94dbea1a5/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 21:45:26,453 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267af618-0cb9-4bea-bb1d-8fd94dbea1a5/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 21:45:26,453 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 528 more)] === [2023-11-24 21:45:26,454 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 21:45:26,454 INFO L85 PathProgramCache]: Analyzing trace with hash -1245279837, now seen corresponding path program 1 times [2023-11-24 21:45:26,454 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-24 21:45:26,455 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1161875236] [2023-11-24 21:45:26,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 21:45:26,455 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 21:45:26,455 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267af618-0cb9-4bea-bb1d-8fd94dbea1a5/bin/uautomizer-verify-NlZe1sFDwI/mathsat [2023-11-24 21:45:26,456 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267af618-0cb9-4bea-bb1d-8fd94dbea1a5/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 21:45:26,460 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267af618-0cb9-4bea-bb1d-8fd94dbea1a5/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 21:45:26,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 21:45:26,634 INFO L262 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-24 21:45:26,638 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 21:45:26,645 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 21:45:26,660 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 21:45:26,660 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-24 21:45:26,662 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-24 21:45:26,662 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1161875236] [2023-11-24 21:45:26,662 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1161875236] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 21:45:26,662 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 21:45:26,662 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-24 21:45:26,663 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1200653020] [2023-11-24 21:45:26,663 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 21:45:26,664 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-24 21:45:26,664 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-24 21:45:26,664 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-24 21:45:26,665 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-24 21:45:26,665 INFO L87 Difference]: Start difference. First operand 942 states and 999 transitions. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 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 21:45:29,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 21:45:29,515 INFO L93 Difference]: Finished difference Result 1239 states and 1327 transitions. [2023-11-24 21:45:29,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 21:45:29,518 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 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 8 [2023-11-24 21:45:29,518 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 21:45:29,525 INFO L225 Difference]: With dead ends: 1239 [2023-11-24 21:45:29,525 INFO L226 Difference]: Without dead ends: 1239 [2023-11-24 21:45:29,525 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 6 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 21:45:29,526 INFO L413 NwaCegarLoop]: 774 mSDtfsCounter, 885 mSDsluCounter, 215 mSDsCounter, 0 mSdLazyCounter, 754 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 890 SdHoareTripleChecker+Valid, 989 SdHoareTripleChecker+Invalid, 807 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 754 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2023-11-24 21:45:29,527 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [890 Valid, 989 Invalid, 807 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 754 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2023-11-24 21:45:29,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1239 states. [2023-11-24 21:45:29,547 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1239 to 894. [2023-11-24 21:45:29,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 894 states, 432 states have (on average 2.178240740740741) internal successors, (941), 886 states have internal predecessors, (941), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-11-24 21:45:29,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 894 states to 894 states and 951 transitions. [2023-11-24 21:45:29,553 INFO L78 Accepts]: Start accepts. Automaton has 894 states and 951 transitions. Word has length 8 [2023-11-24 21:45:29,553 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 21:45:29,554 INFO L495 AbstractCegarLoop]: Abstraction has 894 states and 951 transitions. [2023-11-24 21:45:29,554 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 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 21:45:29,554 INFO L276 IsEmpty]: Start isEmpty. Operand 894 states and 951 transitions. [2023-11-24 21:45:29,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-24 21:45:29,554 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 21:45:29,555 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 21:45:29,560 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267af618-0cb9-4bea-bb1d-8fd94dbea1a5/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)] Ended with exit code 0 [2023-11-24 21:45:29,757 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267af618-0cb9-4bea-bb1d-8fd94dbea1a5/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 21:45:29,757 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 528 more)] === [2023-11-24 21:45:29,758 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 21:45:29,758 INFO L85 PathProgramCache]: Analyzing trace with hash -1245279836, now seen corresponding path program 1 times [2023-11-24 21:45:29,758 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-24 21:45:29,758 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [751055038] [2023-11-24 21:45:29,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 21:45:29,758 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 21:45:29,759 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267af618-0cb9-4bea-bb1d-8fd94dbea1a5/bin/uautomizer-verify-NlZe1sFDwI/mathsat [2023-11-24 21:45:29,759 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267af618-0cb9-4bea-bb1d-8fd94dbea1a5/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 21:45:29,761 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267af618-0cb9-4bea-bb1d-8fd94dbea1a5/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 (7)] Waiting until timeout for monitored process [2023-11-24 21:45:29,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 21:45:29,901 INFO L262 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-24 21:45:29,903 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 21:45:29,916 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 21:45:29,949 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 21:45:29,950 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-24 21:45:29,950 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-24 21:45:29,950 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [751055038] [2023-11-24 21:45:29,950 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [751055038] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 21:45:29,950 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 21:45:29,951 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-24 21:45:29,951 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1404414073] [2023-11-24 21:45:29,951 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 21:45:29,951 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-24 21:45:29,952 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-24 21:45:29,952 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-24 21:45:29,952 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-24 21:45:29,952 INFO L87 Difference]: Start difference. First operand 894 states and 951 transitions. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 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 21:45:33,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 21:45:33,961 INFO L93 Difference]: Finished difference Result 1308 states and 1399 transitions. [2023-11-24 21:45:33,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 21:45:33,963 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 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 8 [2023-11-24 21:45:33,963 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 21:45:33,969 INFO L225 Difference]: With dead ends: 1308 [2023-11-24 21:45:33,969 INFO L226 Difference]: Without dead ends: 1308 [2023-11-24 21:45:33,970 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 6 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 21:45:33,970 INFO L413 NwaCegarLoop]: 945 mSDtfsCounter, 613 mSDsluCounter, 348 mSDsCounter, 0 mSdLazyCounter, 793 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 614 SdHoareTripleChecker+Valid, 1293 SdHoareTripleChecker+Invalid, 805 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 793 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2023-11-24 21:45:33,971 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [614 Valid, 1293 Invalid, 805 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 793 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2023-11-24 21:45:33,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1308 states. [2023-11-24 21:45:33,991 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1308 to 907. [2023-11-24 21:45:33,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 907 states, 455 states have (on average 2.1714285714285713) internal successors, (988), 899 states have internal predecessors, (988), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-11-24 21:45:33,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 907 states to 907 states and 998 transitions. [2023-11-24 21:45:33,997 INFO L78 Accepts]: Start accepts. Automaton has 907 states and 998 transitions. Word has length 8 [2023-11-24 21:45:33,997 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 21:45:33,998 INFO L495 AbstractCegarLoop]: Abstraction has 907 states and 998 transitions. [2023-11-24 21:45:33,998 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 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 21:45:33,998 INFO L276 IsEmpty]: Start isEmpty. Operand 907 states and 998 transitions. [2023-11-24 21:45:33,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-11-24 21:45:33,999 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 21:45:33,999 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 21:45:34,010 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267af618-0cb9-4bea-bb1d-8fd94dbea1a5/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 (7)] Forceful destruction successful, exit code 0 [2023-11-24 21:45:34,202 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267af618-0cb9-4bea-bb1d-8fd94dbea1a5/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 21:45:34,203 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr525REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 528 more)] === [2023-11-24 21:45:34,204 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 21:45:34,204 INFO L85 PathProgramCache]: Analyzing trace with hash 1058268812, now seen corresponding path program 1 times [2023-11-24 21:45:34,204 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-24 21:45:34,204 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [196292964] [2023-11-24 21:45:34,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 21:45:34,205 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 21:45:34,205 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267af618-0cb9-4bea-bb1d-8fd94dbea1a5/bin/uautomizer-verify-NlZe1sFDwI/mathsat [2023-11-24 21:45:34,206 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267af618-0cb9-4bea-bb1d-8fd94dbea1a5/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 21:45:34,247 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267af618-0cb9-4bea-bb1d-8fd94dbea1a5/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 (8)] Waiting until timeout for monitored process [2023-11-24 21:45:34,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 21:45:34,384 INFO L262 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-24 21:45:34,387 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 21:45:34,494 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 21:45:34,494 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-24 21:45:34,495 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-24 21:45:34,495 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [196292964] [2023-11-24 21:45:34,495 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [196292964] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 21:45:34,495 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 21:45:34,495 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-24 21:45:34,495 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1248638048] [2023-11-24 21:45:34,496 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 21:45:34,496 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-24 21:45:34,496 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-24 21:45:34,497 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-24 21:45:34,497 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-24 21:45:34,497 INFO L87 Difference]: Start difference. First operand 907 states and 998 transitions. Second operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 3 states have internal predecessors, (11), 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 21:45:36,899 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 21:45:36,900 INFO L93 Difference]: Finished difference Result 1316 states and 1442 transitions. [2023-11-24 21:45:36,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-24 21:45:36,902 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), 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 11 [2023-11-24 21:45:36,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 21:45:36,908 INFO L225 Difference]: With dead ends: 1316 [2023-11-24 21:45:36,908 INFO L226 Difference]: Without dead ends: 1316 [2023-11-24 21:45:36,909 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-24 21:45:36,910 INFO L413 NwaCegarLoop]: 877 mSDtfsCounter, 497 mSDsluCounter, 1484 mSDsCounter, 0 mSdLazyCounter, 550 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 500 SdHoareTripleChecker+Valid, 2361 SdHoareTripleChecker+Invalid, 557 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 550 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2023-11-24 21:45:36,910 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [500 Valid, 2361 Invalid, 557 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 550 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2023-11-24 21:45:36,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1316 states. [2023-11-24 21:45:36,934 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1316 to 1109. [2023-11-24 21:45:36,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1109 states, 656 states have (on average 2.1402439024390243) internal successors, (1404), 1100 states have internal predecessors, (1404), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-11-24 21:45:36,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1109 states to 1109 states and 1416 transitions. [2023-11-24 21:45:36,941 INFO L78 Accepts]: Start accepts. Automaton has 1109 states and 1416 transitions. Word has length 11 [2023-11-24 21:45:36,942 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 21:45:36,942 INFO L495 AbstractCegarLoop]: Abstraction has 1109 states and 1416 transitions. [2023-11-24 21:45:36,942 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), 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 21:45:36,942 INFO L276 IsEmpty]: Start isEmpty. Operand 1109 states and 1416 transitions. [2023-11-24 21:45:36,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-11-24 21:45:36,943 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 21:45:36,943 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 21:45:36,951 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267af618-0cb9-4bea-bb1d-8fd94dbea1a5/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 (8)] Forceful destruction successful, exit code 0 [2023-11-24 21:45:37,145 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267af618-0cb9-4bea-bb1d-8fd94dbea1a5/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 21:45:37,146 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr529ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 528 more)] === [2023-11-24 21:45:37,146 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 21:45:37,146 INFO L85 PathProgramCache]: Analyzing trace with hash -1553405064, now seen corresponding path program 1 times [2023-11-24 21:45:37,147 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-24 21:45:37,147 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1066103543] [2023-11-24 21:45:37,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 21:45:37,147 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 21:45:37,147 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267af618-0cb9-4bea-bb1d-8fd94dbea1a5/bin/uautomizer-verify-NlZe1sFDwI/mathsat [2023-11-24 21:45:37,149 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267af618-0cb9-4bea-bb1d-8fd94dbea1a5/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 21:45:37,150 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267af618-0cb9-4bea-bb1d-8fd94dbea1a5/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 (9)] Waiting until timeout for monitored process [2023-11-24 21:45:37,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 21:45:37,363 INFO L262 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-24 21:45:37,365 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 21:45:37,502 WARN L876 $PredicateComparison]: unable to prove that (exists ((|v_ULTIMATE.start_main_~#i~0#1.base_54| (_ BitVec 32))) (and (= (_ bv0 1) (select |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#i~0#1.base_54|)) (= (store |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#i~0#1.base_54| (_ bv0 1)) |c_#valid|))) is different from true [2023-11-24 21:45:37,503 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 21:45:37,503 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-24 21:45:37,504 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-24 21:45:37,504 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1066103543] [2023-11-24 21:45:37,504 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1066103543] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 21:45:37,504 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 21:45:37,504 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-24 21:45:37,504 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2126606127] [2023-11-24 21:45:37,504 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 21:45:37,505 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-24 21:45:37,505 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-24 21:45:37,505 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-24 21:45:37,505 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=4, Unknown=1, NotChecked=2, Total=12 [2023-11-24 21:45:37,506 INFO L87 Difference]: Start difference. First operand 1109 states and 1416 transitions. Second operand has 4 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) [2023-11-24 21:45:40,442 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 21:45:40,443 INFO L93 Difference]: Finished difference Result 1429 states and 1819 transitions. [2023-11-24 21:45:40,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-24 21:45:40,443 INFO L78 Accepts]: Start accepts. Automaton has has 4 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 [2023-11-24 21:45:40,443 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 21:45:40,450 INFO L225 Difference]: With dead ends: 1429 [2023-11-24 21:45:40,451 INFO L226 Difference]: Without dead ends: 1425 [2023-11-24 21:45:40,451 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=4, Unknown=1, NotChecked=2, Total=12 [2023-11-24 21:45:40,451 INFO L413 NwaCegarLoop]: 718 mSDtfsCounter, 294 mSDsluCounter, 460 mSDsCounter, 0 mSdLazyCounter, 692 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 295 SdHoareTripleChecker+Valid, 1178 SdHoareTripleChecker+Invalid, 1930 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 692 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 1238 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2023-11-24 21:45:40,452 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [295 Valid, 1178 Invalid, 1930 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 692 Invalid, 0 Unknown, 1238 Unchecked, 2.9s Time] [2023-11-24 21:45:40,455 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1425 states. [2023-11-24 21:45:40,477 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1425 to 1178. [2023-11-24 21:45:40,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1178 states, 724 states have (on average 2.1146408839779007) internal successors, (1531), 1168 states have internal predecessors, (1531), 7 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2023-11-24 21:45:40,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1178 states to 1178 states and 1545 transitions. [2023-11-24 21:45:40,486 INFO L78 Accepts]: Start accepts. Automaton has 1178 states and 1545 transitions. Word has length 12 [2023-11-24 21:45:40,486 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 21:45:40,486 INFO L495 AbstractCegarLoop]: Abstraction has 1178 states and 1545 transitions. [2023-11-24 21:45:40,486 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 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) [2023-11-24 21:45:40,486 INFO L276 IsEmpty]: Start isEmpty. Operand 1178 states and 1545 transitions. [2023-11-24 21:45:40,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-11-24 21:45:40,487 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 21:45:40,487 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 21:45:40,496 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267af618-0cb9-4bea-bb1d-8fd94dbea1a5/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 (9)] Ended with exit code 0 [2023-11-24 21:45:40,691 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267af618-0cb9-4bea-bb1d-8fd94dbea1a5/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 21:45:40,691 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr340REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 528 more)] === [2023-11-24 21:45:40,692 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 21:45:40,692 INFO L85 PathProgramCache]: Analyzing trace with hash -1495978260, now seen corresponding path program 1 times [2023-11-24 21:45:40,692 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-24 21:45:40,693 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1032242] [2023-11-24 21:45:40,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 21:45:40,693 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 21:45:40,693 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267af618-0cb9-4bea-bb1d-8fd94dbea1a5/bin/uautomizer-verify-NlZe1sFDwI/mathsat [2023-11-24 21:45:40,694 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267af618-0cb9-4bea-bb1d-8fd94dbea1a5/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 21:45:40,696 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_267af618-0cb9-4bea-bb1d-8fd94dbea1a5/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 (10)] Waiting until timeout for monitored process [2023-11-24 21:45:40,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 21:45:40,843 INFO L262 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-24 21:45:40,845 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 21:45:40,856 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 21:45:40,856 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-24 21:45:40,857 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-24 21:45:40,857 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1032242] [2023-11-24 21:45:40,857 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1032242] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 21:45:40,857 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 21:45:40,857 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-24 21:45:40,858 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [525639241] [2023-11-24 21:45:40,858 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 21:45:40,858 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-24 21:45:40,859 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-24 21:45:40,860 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-24 21:45:40,860 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-24 21:45:40,860 INFO L87 Difference]: Start difference. First operand 1178 states and 1545 transitions. Second operand has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 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)