./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test5-3.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 30e01a73 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bffdee46-244c-4bc0-80ed-270da219f5cb/bin/uautomizer-verify-zZY32mL2XJ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bffdee46-244c-4bc0-80ed-270da219f5cb/bin/uautomizer-verify-zZY32mL2XJ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bffdee46-244c-4bc0-80ed-270da219f5cb/bin/uautomizer-verify-zZY32mL2XJ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bffdee46-244c-4bc0-80ed-270da219f5cb/bin/uautomizer-verify-zZY32mL2XJ/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test5-3.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bffdee46-244c-4bc0-80ed-270da219f5cb/bin/uautomizer-verify-zZY32mL2XJ/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bffdee46-244c-4bc0-80ed-270da219f5cb/bin/uautomizer-verify-zZY32mL2XJ --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 cb182062e759f3e947e2f86847df2222bda90081d4cc013a50b9baa2d9844063 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 22:37:44,251 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 22:37:44,327 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bffdee46-244c-4bc0-80ed-270da219f5cb/bin/uautomizer-verify-zZY32mL2XJ/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2023-11-23 22:37:44,333 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 22:37:44,334 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 22:37:44,366 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 22:37:44,367 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 22:37:44,367 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 22:37:44,368 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 22:37:44,369 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 22:37:44,370 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-23 22:37:44,371 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-23 22:37:44,372 INFO L153 SettingsManager]: * Use SBE=true [2023-11-23 22:37:44,372 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 22:37:44,373 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-23 22:37:44,374 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 22:37:44,374 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-23 22:37:44,375 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 22:37:44,375 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-23 22:37:44,376 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-23 22:37:44,377 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-23 22:37:44,377 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 22:37:44,378 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-23 22:37:44,378 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-23 22:37:44,379 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-23 22:37:44,379 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 22:37:44,380 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 22:37:44,380 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-23 22:37:44,381 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 22:37:44,381 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 22:37:44,382 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 22:37:44,383 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 22:37:44,383 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 22:37:44,384 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-23 22:37:44,384 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 22:37:44,385 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 22:37:44,385 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-23 22:37:44,386 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-23 22:37:44,386 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 22:37:44,387 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_bffdee46-244c-4bc0-80ed-270da219f5cb/bin/uautomizer-verify-zZY32mL2XJ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bffdee46-244c-4bc0-80ed-270da219f5cb/bin/uautomizer-verify-zZY32mL2XJ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cb182062e759f3e947e2f86847df2222bda90081d4cc013a50b9baa2d9844063 [2023-11-23 22:37:44,700 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 22:37:44,738 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 22:37:44,741 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 22:37:44,744 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 22:37:44,745 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 22:37:44,746 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bffdee46-244c-4bc0-80ed-270da219f5cb/bin/uautomizer-verify-zZY32mL2XJ/../../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test5-3.i [2023-11-23 22:37:48,177 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 22:37:48,600 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 22:37:48,600 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bffdee46-244c-4bc0-80ed-270da219f5cb/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test5-3.i [2023-11-23 22:37:48,639 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bffdee46-244c-4bc0-80ed-270da219f5cb/bin/uautomizer-verify-zZY32mL2XJ/data/40827961f/3753814c4d0b4171acc49bd2d845d24b/FLAGb3add07de [2023-11-23 22:37:48,653 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bffdee46-244c-4bc0-80ed-270da219f5cb/bin/uautomizer-verify-zZY32mL2XJ/data/40827961f/3753814c4d0b4171acc49bd2d845d24b [2023-11-23 22:37:48,657 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 22:37:48,658 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 22:37:48,660 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 22:37:48,660 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 22:37:48,666 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 22:37:48,667 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 10:37:48" (1/1) ... [2023-11-23 22:37:48,668 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@481afc80 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:37:48, skipping insertion in model container [2023-11-23 22:37:48,669 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 10:37:48" (1/1) ... [2023-11-23 22:37:48,764 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 22:37:49,712 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 22:37:49,726 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) [2023-11-23 22:37:49,727 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@39a4342c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:37:49, skipping insertion in model container [2023-11-23 22:37:49,727 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 22:37:49,728 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2023-11-23 22:37:49,730 INFO L158 Benchmark]: Toolchain (without parser) took 1070.49ms. Allocated memory is still 188.7MB. Free memory was 138.4MB in the beginning and 114.0MB in the end (delta: 24.4MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2023-11-23 22:37:49,731 INFO L158 Benchmark]: CDTParser took 0.67ms. Allocated memory is still 146.8MB. Free memory was 88.4MB in the beginning and 88.3MB in the end (delta: 157.3kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 22:37:49,732 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1067.88ms. Allocated memory is still 188.7MB. Free memory was 137.8MB in the beginning and 114.0MB in the end (delta: 23.8MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2023-11-23 22:37:49,734 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.67ms. Allocated memory is still 146.8MB. Free memory was 88.4MB in the beginning and 88.3MB in the end (delta: 157.3kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1067.88ms. Allocated memory is still 188.7MB. Free memory was 137.8MB in the beginning and 114.0MB in the end (delta: 23.8MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 737]: Unsupported Syntax Found a cast between two array/pointer types of different sizes while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bffdee46-244c-4bc0-80ed-270da219f5cb/bin/uautomizer-verify-zZY32mL2XJ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bffdee46-244c-4bc0-80ed-270da219f5cb/bin/uautomizer-verify-zZY32mL2XJ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bffdee46-244c-4bc0-80ed-270da219f5cb/bin/uautomizer-verify-zZY32mL2XJ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bffdee46-244c-4bc0-80ed-270da219f5cb/bin/uautomizer-verify-zZY32mL2XJ/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test5-3.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bffdee46-244c-4bc0-80ed-270da219f5cb/bin/uautomizer-verify-zZY32mL2XJ/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bffdee46-244c-4bc0-80ed-270da219f5cb/bin/uautomizer-verify-zZY32mL2XJ --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 cb182062e759f3e947e2f86847df2222bda90081d4cc013a50b9baa2d9844063 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 22:37:52,302 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 22:37:52,387 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bffdee46-244c-4bc0-80ed-270da219f5cb/bin/uautomizer-verify-zZY32mL2XJ/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2023-11-23 22:37:52,393 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 22:37:52,394 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 22:37:52,420 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 22:37:52,421 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 22:37:52,421 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 22:37:52,422 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 22:37:52,423 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 22:37:52,424 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-23 22:37:52,424 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-23 22:37:52,425 INFO L153 SettingsManager]: * Use SBE=true [2023-11-23 22:37:52,426 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 22:37:52,427 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-23 22:37:52,427 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 22:37:52,428 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-23 22:37:52,429 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 22:37:52,429 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-23 22:37:52,430 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-23 22:37:52,431 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-23 22:37:52,431 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 22:37:52,432 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-23 22:37:52,433 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-23 22:37:52,433 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-23 22:37:52,434 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-23 22:37:52,434 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-23 22:37:52,435 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 22:37:52,436 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 22:37:52,436 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-23 22:37:52,437 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 22:37:52,437 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 22:37:52,438 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 22:37:52,438 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 22:37:52,438 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 22:37:52,439 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-11-23 22:37:52,439 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-23 22:37:52,440 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 22:37:52,440 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-23 22:37:52,440 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-23 22:37:52,440 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 22:37:52,441 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-11-23 22:37:52,441 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_bffdee46-244c-4bc0-80ed-270da219f5cb/bin/uautomizer-verify-zZY32mL2XJ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bffdee46-244c-4bc0-80ed-270da219f5cb/bin/uautomizer-verify-zZY32mL2XJ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cb182062e759f3e947e2f86847df2222bda90081d4cc013a50b9baa2d9844063 [2023-11-23 22:37:52,824 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 22:37:52,855 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 22:37:52,858 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 22:37:52,859 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 22:37:52,860 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 22:37:52,861 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bffdee46-244c-4bc0-80ed-270da219f5cb/bin/uautomizer-verify-zZY32mL2XJ/../../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test5-3.i [2023-11-23 22:37:55,983 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 22:37:56,417 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 22:37:56,417 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bffdee46-244c-4bc0-80ed-270da219f5cb/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test5-3.i [2023-11-23 22:37:56,441 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bffdee46-244c-4bc0-80ed-270da219f5cb/bin/uautomizer-verify-zZY32mL2XJ/data/d03eaac0d/49d596eb49c84ab7b7fe0b6c21595fcb/FLAG23eb0da88 [2023-11-23 22:37:56,459 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bffdee46-244c-4bc0-80ed-270da219f5cb/bin/uautomizer-verify-zZY32mL2XJ/data/d03eaac0d/49d596eb49c84ab7b7fe0b6c21595fcb [2023-11-23 22:37:56,465 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 22:37:56,469 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 22:37:56,471 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 22:37:56,471 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 22:37:56,477 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 22:37:56,478 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 10:37:56" (1/1) ... [2023-11-23 22:37:56,479 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1db5613d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:37:56, skipping insertion in model container [2023-11-23 22:37:56,479 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 10:37:56" (1/1) ... [2023-11-23 22:37:56,561 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 22:37:57,458 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 22:37:57,472 INFO L199 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2023-11-23 22:37:57,534 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 22:37:57,664 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 22:37:57,683 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 22:37:57,878 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 22:37:57,928 WARN L675 CHandler]: The function memcmp is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 22:37:57,936 INFO L206 MainTranslator]: Completed translation [2023-11-23 22:37:57,937 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:37:57 WrapperNode [2023-11-23 22:37:57,937 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 22:37:57,938 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 22:37:57,939 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 22:37:57,939 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 22:37:57,947 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:37:57" (1/1) ... [2023-11-23 22:37:58,011 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:37:57" (1/1) ... [2023-11-23 22:37:58,125 INFO L138 Inliner]: procedures = 180, calls = 489, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1732 [2023-11-23 22:37:58,126 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 22:37:58,127 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 22:37:58,127 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 22:37:58,127 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 22:37:58,137 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:37:57" (1/1) ... [2023-11-23 22:37:58,137 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:37:57" (1/1) ... [2023-11-23 22:37:58,151 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:37:57" (1/1) ... [2023-11-23 22:37:58,152 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:37:57" (1/1) ... [2023-11-23 22:37:58,241 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:37:57" (1/1) ... [2023-11-23 22:37:58,275 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:37:57" (1/1) ... [2023-11-23 22:37:58,283 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:37:57" (1/1) ... [2023-11-23 22:37:58,303 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:37:57" (1/1) ... [2023-11-23 22:37:58,380 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 22:37:58,381 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 22:37:58,381 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 22:37:58,381 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 22:37:58,382 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:37:57" (1/1) ... [2023-11-23 22:37:58,387 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 22:37:58,398 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bffdee46-244c-4bc0-80ed-270da219f5cb/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:37:58,416 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bffdee46-244c-4bc0-80ed-270da219f5cb/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 22:37:58,438 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bffdee46-244c-4bc0-80ed-270da219f5cb/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 22:37:58,464 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-11-23 22:37:58,465 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-11-23 22:37:58,465 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2023-11-23 22:37:58,465 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2023-11-23 22:37:58,465 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-23 22:37:58,465 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-23 22:37:58,465 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2023-11-23 22:37:58,465 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2023-11-23 22:37:58,466 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-23 22:37:58,467 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 22:37:58,467 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-23 22:37:58,467 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-23 22:37:58,468 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2023-11-23 22:37:58,468 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-23 22:37:58,468 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-23 22:37:58,468 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2023-11-23 22:37:58,468 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-23 22:37:58,469 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 22:37:58,469 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 22:37:58,815 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 22:37:58,818 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 22:37:58,868 WARN L821 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2023-11-23 22:38:07,510 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 22:38:07,841 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 22:38:07,841 INFO L309 CfgBuilder]: Removed 100 assume(true) statements. [2023-11-23 22:38:07,844 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 10:38:07 BoogieIcfgContainer [2023-11-23 22:38:07,844 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 22:38:07,847 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 22:38:07,847 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 22:38:07,851 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 22:38:07,852 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 10:37:56" (1/3) ... [2023-11-23 22:38:07,852 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@344b3312 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 10:38:07, skipping insertion in model container [2023-11-23 22:38:07,853 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:37:57" (2/3) ... [2023-11-23 22:38:07,854 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@344b3312 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 10:38:07, skipping insertion in model container [2023-11-23 22:38:07,854 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 10:38:07" (3/3) ... [2023-11-23 22:38:07,856 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_SAX_test5-3.i [2023-11-23 22:38:07,876 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 22:38:07,876 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 931 error locations. [2023-11-23 22:38:07,988 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 22:38:07,997 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;@41b34e14, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 22:38:07,997 INFO L358 AbstractCegarLoop]: Starting to check reachability of 931 error locations. [2023-11-23 22:38:08,010 INFO L276 IsEmpty]: Start isEmpty. Operand has 1672 states, 730 states have (on average 2.543835616438356) internal successors, (1857), 1662 states have internal predecessors, (1857), 13 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (13), 9 states have call predecessors, (13), 13 states have call successors, (13) [2023-11-23 22:38:08,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-11-23 22:38:08,019 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 22:38:08,019 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2023-11-23 22:38:08,020 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 928 more)] === [2023-11-23 22:38:08,024 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:38:08,025 INFO L85 PathProgramCache]: Analyzing trace with hash 86570822, now seen corresponding path program 1 times [2023-11-23 22:38:08,038 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-23 22:38:08,038 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [369058407] [2023-11-23 22:38:08,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:38:08,039 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 [2023-11-23 22:38:08,040 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bffdee46-244c-4bc0-80ed-270da219f5cb/bin/uautomizer-verify-zZY32mL2XJ/mathsat [2023-11-23 22:38:08,045 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bffdee46-244c-4bc0-80ed-270da219f5cb/bin/uautomizer-verify-zZY32mL2XJ/mathsat -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) [2023-11-23 22:38:08,049 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bffdee46-244c-4bc0-80ed-270da219f5cb/bin/uautomizer-verify-zZY32mL2XJ/mathsat -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 [2023-11-23 22:38:08,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:38:08,286 INFO L262 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-23 22:38:08,293 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:38:08,362 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 [2023-11-23 22:38:08,379 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 22:38:08,380 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 22:38:08,380 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-23 22:38:08,381 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [369058407] [2023-11-23 22:38:08,382 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [369058407] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:38:08,382 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:38:08,382 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 22:38:08,384 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1822125977] [2023-11-23 22:38:08,385 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:38:08,390 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 22:38:08,390 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-23 22:38:08,419 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 22:38:08,420 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 22:38:08,426 INFO L87 Difference]: Start difference. First operand has 1672 states, 730 states have (on average 2.543835616438356) internal successors, (1857), 1662 states have internal predecessors, (1857), 13 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (13), 9 states have call predecessors, (13), 13 states have call successors, (13) Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 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) [2023-11-23 22:38:12,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 22:38:12,931 INFO L93 Difference]: Finished difference Result 1881 states and 2026 transitions. [2023-11-23 22:38:12,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 22:38:12,935 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 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 4 [2023-11-23 22:38:12,935 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 22:38:12,972 INFO L225 Difference]: With dead ends: 1881 [2023-11-23 22:38:12,972 INFO L226 Difference]: Without dead ends: 1880 [2023-11-23 22:38:12,974 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 22:38:12,980 INFO L413 NwaCegarLoop]: 1114 mSDtfsCounter, 1235 mSDsluCounter, 399 mSDsCounter, 0 mSdLazyCounter, 1143 mSolverCounterSat, 102 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1246 SdHoareTripleChecker+Valid, 1513 SdHoareTripleChecker+Invalid, 1245 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 102 IncrementalHoareTripleChecker+Valid, 1143 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2023-11-23 22:38:12,981 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1246 Valid, 1513 Invalid, 1245 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [102 Valid, 1143 Invalid, 0 Unknown, 0 Unchecked, 4.3s Time] [2023-11-23 22:38:13,028 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1880 states. [2023-11-23 22:38:13,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1880 to 1626. [2023-11-23 22:38:13,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1626 states, 787 states have (on average 2.238881829733164) internal successors, (1762), 1616 states have internal predecessors, (1762), 13 states have call successors, (13), 3 states have call predecessors, (13), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2023-11-23 22:38:13,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1626 states to 1626 states and 1786 transitions. [2023-11-23 22:38:13,148 INFO L78 Accepts]: Start accepts. Automaton has 1626 states and 1786 transitions. Word has length 4 [2023-11-23 22:38:13,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 22:38:13,149 INFO L495 AbstractCegarLoop]: Abstraction has 1626 states and 1786 transitions. [2023-11-23 22:38:13,149 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 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) [2023-11-23 22:38:13,150 INFO L276 IsEmpty]: Start isEmpty. Operand 1626 states and 1786 transitions. [2023-11-23 22:38:13,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-11-23 22:38:13,150 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 22:38:13,150 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2023-11-23 22:38:13,156 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bffdee46-244c-4bc0-80ed-270da219f5cb/bin/uautomizer-verify-zZY32mL2XJ/mathsat -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 [2023-11-23 22:38:13,353 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bffdee46-244c-4bc0-80ed-270da219f5cb/bin/uautomizer-verify-zZY32mL2XJ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-23 22:38:13,354 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 928 more)] === [2023-11-23 22:38:13,355 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:38:13,355 INFO L85 PathProgramCache]: Analyzing trace with hash 86570823, now seen corresponding path program 1 times [2023-11-23 22:38:13,355 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-23 22:38:13,359 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [745751426] [2023-11-23 22:38:13,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:38:13,360 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 [2023-11-23 22:38:13,360 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bffdee46-244c-4bc0-80ed-270da219f5cb/bin/uautomizer-verify-zZY32mL2XJ/mathsat [2023-11-23 22:38:13,361 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bffdee46-244c-4bc0-80ed-270da219f5cb/bin/uautomizer-verify-zZY32mL2XJ/mathsat -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) [2023-11-23 22:38:13,389 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bffdee46-244c-4bc0-80ed-270da219f5cb/bin/uautomizer-verify-zZY32mL2XJ/mathsat -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 [2023-11-23 22:38:13,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:38:13,540 INFO L262 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-23 22:38:13,543 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:38:13,554 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 [2023-11-23 22:38:13,578 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 22:38:13,579 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 22:38:13,579 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-23 22:38:13,579 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [745751426] [2023-11-23 22:38:13,580 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [745751426] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:38:13,580 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:38:13,580 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 22:38:13,580 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [398640897] [2023-11-23 22:38:13,581 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:38:13,582 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 22:38:13,582 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-23 22:38:13,583 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 22:38:13,583 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 22:38:13,583 INFO L87 Difference]: Start difference. First operand 1626 states and 1786 transitions. Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 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) [2023-11-23 22:38:19,553 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 22:38:19,553 INFO L93 Difference]: Finished difference Result 2095 states and 2306 transitions. [2023-11-23 22:38:19,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 22:38:19,554 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 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 4 [2023-11-23 22:38:19,554 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 22:38:19,566 INFO L225 Difference]: With dead ends: 2095 [2023-11-23 22:38:19,566 INFO L226 Difference]: Without dead ends: 2095 [2023-11-23 22:38:19,566 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 22:38:19,568 INFO L413 NwaCegarLoop]: 1442 mSDtfsCounter, 673 mSDsluCounter, 660 mSDsCounter, 0 mSdLazyCounter, 1276 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 678 SdHoareTripleChecker+Valid, 2102 SdHoareTripleChecker+Invalid, 1299 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 1276 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.9s IncrementalHoareTripleChecker+Time [2023-11-23 22:38:19,569 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [678 Valid, 2102 Invalid, 1299 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 1276 Invalid, 0 Unknown, 0 Unchecked, 5.9s Time] [2023-11-23 22:38:19,574 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2095 states. [2023-11-23 22:38:19,612 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2095 to 1749. [2023-11-23 22:38:19,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1749 states, 920 states have (on average 2.2119565217391304) internal successors, (2035), 1739 states have internal predecessors, (2035), 13 states have call successors, (13), 3 states have call predecessors, (13), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2023-11-23 22:38:19,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1749 states to 1749 states and 2059 transitions. [2023-11-23 22:38:19,624 INFO L78 Accepts]: Start accepts. Automaton has 1749 states and 2059 transitions. Word has length 4 [2023-11-23 22:38:19,624 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 22:38:19,624 INFO L495 AbstractCegarLoop]: Abstraction has 1749 states and 2059 transitions. [2023-11-23 22:38:19,625 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 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) [2023-11-23 22:38:19,625 INFO L276 IsEmpty]: Start isEmpty. Operand 1749 states and 2059 transitions. [2023-11-23 22:38:19,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-11-23 22:38:19,626 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 22:38:19,626 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2023-11-23 22:38:19,634 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bffdee46-244c-4bc0-80ed-270da219f5cb/bin/uautomizer-verify-zZY32mL2XJ/mathsat -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)] Forceful destruction successful, exit code 0 [2023-11-23 22:38:19,828 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bffdee46-244c-4bc0-80ed-270da219f5cb/bin/uautomizer-verify-zZY32mL2XJ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-23 22:38:19,829 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr640REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 928 more)] === [2023-11-23 22:38:19,830 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:38:19,830 INFO L85 PathProgramCache]: Analyzing trace with hash -1609580539, now seen corresponding path program 1 times [2023-11-23 22:38:19,831 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-23 22:38:19,832 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2071043355] [2023-11-23 22:38:19,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:38:19,833 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 [2023-11-23 22:38:19,834 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bffdee46-244c-4bc0-80ed-270da219f5cb/bin/uautomizer-verify-zZY32mL2XJ/mathsat [2023-11-23 22:38:19,840 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bffdee46-244c-4bc0-80ed-270da219f5cb/bin/uautomizer-verify-zZY32mL2XJ/mathsat -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) [2023-11-23 22:38:19,902 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bffdee46-244c-4bc0-80ed-270da219f5cb/bin/uautomizer-verify-zZY32mL2XJ/mathsat -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 [2023-11-23 22:38:20,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:38:20,058 INFO L262 TraceCheckSpWp]: Trace formula consists of 30 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-23 22:38:20,061 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:38:20,072 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 22:38:20,072 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 22:38:20,072 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-23 22:38:20,076 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2071043355] [2023-11-23 22:38:20,076 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2071043355] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:38:20,076 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:38:20,076 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 22:38:20,077 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [494448633] [2023-11-23 22:38:20,077 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:38:20,077 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 22:38:20,077 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-23 22:38:20,079 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 22:38:20,079 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 22:38:20,080 INFO L87 Difference]: Start difference. First operand 1749 states and 2059 transitions. Second operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 2 states have internal predecessors, (5), 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) [2023-11-23 22:38:22,349 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 22:38:22,349 INFO L93 Difference]: Finished difference Result 3134 states and 3735 transitions. [2023-11-23 22:38:22,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 22:38:22,351 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 2 states have internal predecessors, (5), 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 5 [2023-11-23 22:38:22,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 22:38:22,369 INFO L225 Difference]: With dead ends: 3134 [2023-11-23 22:38:22,370 INFO L226 Difference]: Without dead ends: 3134 [2023-11-23 22:38:22,370 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 22:38:22,371 INFO L413 NwaCegarLoop]: 1689 mSDtfsCounter, 1243 mSDsluCounter, 1466 mSDsCounter, 0 mSdLazyCounter, 395 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1254 SdHoareTripleChecker+Valid, 3155 SdHoareTripleChecker+Invalid, 397 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 395 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2023-11-23 22:38:22,372 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1254 Valid, 3155 Invalid, 397 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 395 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2023-11-23 22:38:22,379 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3134 states. [2023-11-23 22:38:22,424 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3134 to 1751. [2023-11-23 22:38:22,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1751 states, 922 states have (on average 2.2093275488069413) internal successors, (2037), 1741 states have internal predecessors, (2037), 13 states have call successors, (13), 3 states have call predecessors, (13), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2023-11-23 22:38:22,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1751 states to 1751 states and 2061 transitions. [2023-11-23 22:38:22,436 INFO L78 Accepts]: Start accepts. Automaton has 1751 states and 2061 transitions. Word has length 5 [2023-11-23 22:38:22,436 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 22:38:22,436 INFO L495 AbstractCegarLoop]: Abstraction has 1751 states and 2061 transitions. [2023-11-23 22:38:22,436 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 2 states have internal predecessors, (5), 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) [2023-11-23 22:38:22,437 INFO L276 IsEmpty]: Start isEmpty. Operand 1751 states and 2061 transitions. [2023-11-23 22:38:22,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-11-23 22:38:22,437 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 22:38:22,438 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:38:22,445 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bffdee46-244c-4bc0-80ed-270da219f5cb/bin/uautomizer-verify-zZY32mL2XJ/mathsat -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 [2023-11-23 22:38:22,640 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bffdee46-244c-4bc0-80ed-270da219f5cb/bin/uautomizer-verify-zZY32mL2XJ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-23 22:38:22,640 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 928 more)] === [2023-11-23 22:38:22,640 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:38:22,640 INFO L85 PathProgramCache]: Analyzing trace with hash 800881168, now seen corresponding path program 1 times [2023-11-23 22:38:22,641 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-23 22:38:22,642 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [500002018] [2023-11-23 22:38:22,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:38:22,642 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 [2023-11-23 22:38:22,642 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bffdee46-244c-4bc0-80ed-270da219f5cb/bin/uautomizer-verify-zZY32mL2XJ/mathsat [2023-11-23 22:38:22,643 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bffdee46-244c-4bc0-80ed-270da219f5cb/bin/uautomizer-verify-zZY32mL2XJ/mathsat -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) [2023-11-23 22:38:22,687 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bffdee46-244c-4bc0-80ed-270da219f5cb/bin/uautomizer-verify-zZY32mL2XJ/mathsat -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 [2023-11-23 22:38:22,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:38:22,900 INFO L262 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-23 22:38:22,903 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:38:22,919 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 22:38:22,920 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 22:38:22,920 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-23 22:38:22,920 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [500002018] [2023-11-23 22:38:22,922 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [500002018] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:38:22,923 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:38:22,923 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 22:38:22,924 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1009134360] [2023-11-23 22:38:22,925 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:38:22,927 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 22:38:22,928 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-23 22:38:22,928 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 22:38:22,928 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 22:38:22,929 INFO L87 Difference]: Start difference. First operand 1751 states and 2061 transitions. Second operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 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) [2023-11-23 22:38:24,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 22:38:24,526 INFO L93 Difference]: Finished difference Result 1712 states and 2021 transitions. [2023-11-23 22:38:24,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 22:38:24,528 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 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 10 [2023-11-23 22:38:24,528 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 22:38:24,537 INFO L225 Difference]: With dead ends: 1712 [2023-11-23 22:38:24,538 INFO L226 Difference]: Without dead ends: 1712 [2023-11-23 22:38:24,538 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 22:38:24,539 INFO L413 NwaCegarLoop]: 1426 mSDtfsCounter, 70 mSDsluCounter, 1377 mSDsCounter, 0 mSdLazyCounter, 348 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 2803 SdHoareTripleChecker+Invalid, 348 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 348 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2023-11-23 22:38:24,539 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [70 Valid, 2803 Invalid, 348 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 348 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2023-11-23 22:38:24,544 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1712 states. [2023-11-23 22:38:24,574 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1712 to 1712. [2023-11-23 22:38:24,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1712 states, 907 states have (on average 2.201764057331863) internal successors, (1997), 1702 states have internal predecessors, (1997), 13 states have call successors, (13), 3 states have call predecessors, (13), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2023-11-23 22:38:24,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1712 states to 1712 states and 2021 transitions. [2023-11-23 22:38:24,585 INFO L78 Accepts]: Start accepts. Automaton has 1712 states and 2021 transitions. Word has length 10 [2023-11-23 22:38:24,585 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 22:38:24,585 INFO L495 AbstractCegarLoop]: Abstraction has 1712 states and 2021 transitions. [2023-11-23 22:38:24,586 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 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) [2023-11-23 22:38:24,586 INFO L276 IsEmpty]: Start isEmpty. Operand 1712 states and 2021 transitions. [2023-11-23 22:38:24,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-11-23 22:38:24,586 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 22:38:24,586 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:38:24,594 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bffdee46-244c-4bc0-80ed-270da219f5cb/bin/uautomizer-verify-zZY32mL2XJ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Ended with exit code 0 [2023-11-23 22:38:24,789 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bffdee46-244c-4bc0-80ed-270da219f5cb/bin/uautomizer-verify-zZY32mL2XJ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-23 22:38:24,789 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr28REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 928 more)] === [2023-11-23 22:38:24,790 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:38:24,790 INFO L85 PathProgramCache]: Analyzing trace with hash 847652586, now seen corresponding path program 1 times [2023-11-23 22:38:24,790 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-23 22:38:24,790 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [765765139] [2023-11-23 22:38:24,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:38:24,791 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 [2023-11-23 22:38:24,791 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bffdee46-244c-4bc0-80ed-270da219f5cb/bin/uautomizer-verify-zZY32mL2XJ/mathsat [2023-11-23 22:38:24,792 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bffdee46-244c-4bc0-80ed-270da219f5cb/bin/uautomizer-verify-zZY32mL2XJ/mathsat -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) [2023-11-23 22:38:24,794 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bffdee46-244c-4bc0-80ed-270da219f5cb/bin/uautomizer-verify-zZY32mL2XJ/mathsat -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 [2023-11-23 22:38:25,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:38:25,009 INFO L262 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-23 22:38:25,012 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:38:25,030 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 22:38:25,030 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 22:38:25,030 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-23 22:38:25,031 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [765765139] [2023-11-23 22:38:25,031 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [765765139] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:38:25,031 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:38:25,031 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-23 22:38:25,031 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1210905001] [2023-11-23 22:38:25,032 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:38:25,032 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-23 22:38:25,032 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-23 22:38:25,033 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-23 22:38:25,033 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-23 22:38:25,033 INFO L87 Difference]: Start difference. First operand 1712 states and 2021 transitions. Second operand has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 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) [2023-11-23 22:38:27,135 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 22:38:27,136 INFO L93 Difference]: Finished difference Result 1698 states and 2000 transitions. [2023-11-23 22:38:27,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-23 22:38:27,138 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 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 [2023-11-23 22:38:27,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 22:38:27,146 INFO L225 Difference]: With dead ends: 1698 [2023-11-23 22:38:27,147 INFO L226 Difference]: Without dead ends: 1698 [2023-11-23 22:38:27,147 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-23 22:38:27,148 INFO L413 NwaCegarLoop]: 1395 mSDtfsCounter, 58 mSDsluCounter, 2766 mSDsCounter, 0 mSdLazyCounter, 527 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 4161 SdHoareTripleChecker+Invalid, 549 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 527 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2023-11-23 22:38:27,148 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 4161 Invalid, 549 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 527 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2023-11-23 22:38:27,153 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1698 states. [2023-11-23 22:38:27,182 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1698 to 1697. [2023-11-23 22:38:27,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1697 states, 906 states have (on average 2.1799116997792494) internal successors, (1975), 1687 states have internal predecessors, (1975), 13 states have call successors, (13), 3 states have call predecessors, (13), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2023-11-23 22:38:27,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1697 states to 1697 states and 1999 transitions. [2023-11-23 22:38:27,194 INFO L78 Accepts]: Start accepts. Automaton has 1697 states and 1999 transitions. Word has length 12 [2023-11-23 22:38:27,195 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 22:38:27,195 INFO L495 AbstractCegarLoop]: Abstraction has 1697 states and 1999 transitions. [2023-11-23 22:38:27,195 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 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) [2023-11-23 22:38:27,196 INFO L276 IsEmpty]: Start isEmpty. Operand 1697 states and 1999 transitions. [2023-11-23 22:38:27,197 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2023-11-23 22:38:27,197 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 22:38:27,197 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:38:27,206 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bffdee46-244c-4bc0-80ed-270da219f5cb/bin/uautomizer-verify-zZY32mL2XJ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2023-11-23 22:38:27,400 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bffdee46-244c-4bc0-80ed-270da219f5cb/bin/uautomizer-verify-zZY32mL2XJ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-23 22:38:27,400 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr42REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 928 more)] === [2023-11-23 22:38:27,401 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:38:27,401 INFO L85 PathProgramCache]: Analyzing trace with hash -1534247208, now seen corresponding path program 1 times [2023-11-23 22:38:27,401 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-23 22:38:27,401 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [760983615] [2023-11-23 22:38:27,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:38:27,402 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 [2023-11-23 22:38:27,402 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bffdee46-244c-4bc0-80ed-270da219f5cb/bin/uautomizer-verify-zZY32mL2XJ/mathsat [2023-11-23 22:38:27,429 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bffdee46-244c-4bc0-80ed-270da219f5cb/bin/uautomizer-verify-zZY32mL2XJ/mathsat -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) [2023-11-23 22:38:27,465 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bffdee46-244c-4bc0-80ed-270da219f5cb/bin/uautomizer-verify-zZY32mL2XJ/mathsat -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 [2023-11-23 22:38:27,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:38:27,667 INFO L262 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-23 22:38:27,671 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:38:27,679 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 [2023-11-23 22:38:27,793 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 22:38:27,794 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 22:38:27,794 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-23 22:38:27,794 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [760983615] [2023-11-23 22:38:27,794 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [760983615] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:38:27,794 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:38:27,795 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 22:38:27,795 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [459838635] [2023-11-23 22:38:27,795 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:38:27,795 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-23 22:38:27,796 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-23 22:38:27,796 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-23 22:38:27,796 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-23 22:38:27,797 INFO L87 Difference]: Start difference. First operand 1697 states and 1999 transitions. Second operand has 4 states, 3 states have (on average 8.666666666666666) internal successors, (26), 4 states have internal predecessors, (26), 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) [2023-11-23 22:38:32,992 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 22:38:32,992 INFO L93 Difference]: Finished difference Result 1948 states and 2235 transitions. [2023-11-23 22:38:32,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-23 22:38:32,993 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 8.666666666666666) internal successors, (26), 4 states have internal predecessors, (26), 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 26 [2023-11-23 22:38:32,993 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 22:38:33,003 INFO L225 Difference]: With dead ends: 1948 [2023-11-23 22:38:33,003 INFO L226 Difference]: Without dead ends: 1948 [2023-11-23 22:38:33,003 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-23 22:38:33,004 INFO L413 NwaCegarLoop]: 875 mSDtfsCounter, 1170 mSDsluCounter, 1041 mSDsCounter, 0 mSdLazyCounter, 1963 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1181 SdHoareTripleChecker+Valid, 1916 SdHoareTripleChecker+Invalid, 1977 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 1963 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2023-11-23 22:38:33,004 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1181 Valid, 1916 Invalid, 1977 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 1963 Invalid, 0 Unknown, 0 Unchecked, 5.1s Time] [2023-11-23 22:38:33,009 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1948 states. [2023-11-23 22:38:33,038 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1948 to 1693. [2023-11-23 22:38:33,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1693 states, 906 states have (on average 2.1754966887417218) internal successors, (1971), 1683 states have internal predecessors, (1971), 13 states have call successors, (13), 3 states have call predecessors, (13), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2023-11-23 22:38:33,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1693 states to 1693 states and 1995 transitions. [2023-11-23 22:38:33,049 INFO L78 Accepts]: Start accepts. Automaton has 1693 states and 1995 transitions. Word has length 26 [2023-11-23 22:38:33,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 22:38:33,049 INFO L495 AbstractCegarLoop]: Abstraction has 1693 states and 1995 transitions. [2023-11-23 22:38:33,050 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 8.666666666666666) internal successors, (26), 4 states have internal predecessors, (26), 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) [2023-11-23 22:38:33,050 INFO L276 IsEmpty]: Start isEmpty. Operand 1693 states and 1995 transitions. [2023-11-23 22:38:33,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2023-11-23 22:38:33,051 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 22:38:33,051 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:38:33,063 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bffdee46-244c-4bc0-80ed-270da219f5cb/bin/uautomizer-verify-zZY32mL2XJ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Ended with exit code 0 [2023-11-23 22:38:33,254 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bffdee46-244c-4bc0-80ed-270da219f5cb/bin/uautomizer-verify-zZY32mL2XJ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-23 22:38:33,255 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr43REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 928 more)] === [2023-11-23 22:38:33,255 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:38:33,255 INFO L85 PathProgramCache]: Analyzing trace with hash -1534247207, now seen corresponding path program 1 times [2023-11-23 22:38:33,256 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-23 22:38:33,256 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1920292881] [2023-11-23 22:38:33,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:38:33,256 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 [2023-11-23 22:38:33,257 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bffdee46-244c-4bc0-80ed-270da219f5cb/bin/uautomizer-verify-zZY32mL2XJ/mathsat [2023-11-23 22:38:33,258 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bffdee46-244c-4bc0-80ed-270da219f5cb/bin/uautomizer-verify-zZY32mL2XJ/mathsat -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) [2023-11-23 22:38:33,281 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bffdee46-244c-4bc0-80ed-270da219f5cb/bin/uautomizer-verify-zZY32mL2XJ/mathsat -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 [2023-11-23 22:38:33,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:38:33,491 INFO L262 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-23 22:38:33,494 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:38:33,505 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 [2023-11-23 22:38:33,731 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 22:38:33,731 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 22:38:33,732 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-23 22:38:33,732 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1920292881] [2023-11-23 22:38:33,732 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1920292881] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:38:33,732 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:38:33,732 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 22:38:33,732 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1446145741] [2023-11-23 22:38:33,733 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:38:33,733 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-23 22:38:33,733 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-23 22:38:33,734 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-23 22:38:33,734 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-23 22:38:33,734 INFO L87 Difference]: Start difference. First operand 1693 states and 1995 transitions. Second operand has 4 states, 3 states have (on average 8.666666666666666) internal successors, (26), 4 states have internal predecessors, (26), 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)