./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/ddv-machzwd/ddv_machzwd_outb_p.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_cbb9d36d-1eae-4c9a-b767-5ad1632e4235/bin/uautomizer-verify-zZY32mL2XJ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbb9d36d-1eae-4c9a-b767-5ad1632e4235/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_cbb9d36d-1eae-4c9a-b767-5ad1632e4235/bin/uautomizer-verify-zZY32mL2XJ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbb9d36d-1eae-4c9a-b767-5ad1632e4235/bin/uautomizer-verify-zZY32mL2XJ/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ddv-machzwd/ddv_machzwd_outb_p.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbb9d36d-1eae-4c9a-b767-5ad1632e4235/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_cbb9d36d-1eae-4c9a-b767-5ad1632e4235/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 5d4ac8f9993fdd9a611524b9b9f0ae991f3672b4fa16738dbd64025282f00ca6 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 22:28:52,657 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 22:28:52,734 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbb9d36d-1eae-4c9a-b767-5ad1632e4235/bin/uautomizer-verify-zZY32mL2XJ/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2023-11-23 22:28:52,745 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 22:28:52,746 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 22:28:52,783 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 22:28:52,784 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 22:28:52,785 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 22:28:52,790 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 22:28:52,795 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 22:28:52,796 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-23 22:28:52,797 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-23 22:28:52,797 INFO L153 SettingsManager]: * Use SBE=true [2023-11-23 22:28:52,799 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 22:28:52,799 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-23 22:28:52,800 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 22:28:52,800 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-23 22:28:52,801 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 22:28:52,801 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-23 22:28:52,801 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-23 22:28:52,802 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-23 22:28:52,802 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 22:28:52,803 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-23 22:28:52,803 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-23 22:28:52,803 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-23 22:28:52,804 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 22:28:52,805 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 22:28:52,805 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-23 22:28:52,805 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 22:28:52,806 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 22:28:52,807 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 22:28:52,807 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 22:28:52,807 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 22:28:52,808 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-23 22:28:52,808 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 22:28:52,809 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 22:28:52,809 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-23 22:28:52,809 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-23 22:28:52,809 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 22:28:52,810 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_cbb9d36d-1eae-4c9a-b767-5ad1632e4235/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbb9d36d-1eae-4c9a-b767-5ad1632e4235/bin/uautomizer-verify-zZY32mL2XJ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5d4ac8f9993fdd9a611524b9b9f0ae991f3672b4fa16738dbd64025282f00ca6 [2023-11-23 22:28:53,045 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 22:28:53,100 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 22:28:53,103 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 22:28:53,104 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 22:28:53,105 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 22:28:53,106 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbb9d36d-1eae-4c9a-b767-5ad1632e4235/bin/uautomizer-verify-zZY32mL2XJ/../../sv-benchmarks/c/ddv-machzwd/ddv_machzwd_outb_p.i [2023-11-23 22:28:56,248 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 22:28:56,763 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 22:28:56,764 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbb9d36d-1eae-4c9a-b767-5ad1632e4235/sv-benchmarks/c/ddv-machzwd/ddv_machzwd_outb_p.i [2023-11-23 22:28:56,802 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbb9d36d-1eae-4c9a-b767-5ad1632e4235/bin/uautomizer-verify-zZY32mL2XJ/data/cf2cdf25a/023ee76344ea43b19b6fb10cf2a09e8c/FLAGb898344c6 [2023-11-23 22:28:56,820 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbb9d36d-1eae-4c9a-b767-5ad1632e4235/bin/uautomizer-verify-zZY32mL2XJ/data/cf2cdf25a/023ee76344ea43b19b6fb10cf2a09e8c [2023-11-23 22:28:56,827 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 22:28:56,829 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 22:28:56,834 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 22:28:56,834 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 22:28:56,840 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 22:28:56,843 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 10:28:56" (1/1) ... [2023-11-23 22:28:56,844 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@68c25797 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:28:56, skipping insertion in model container [2023-11-23 22:28:56,844 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 10:28:56" (1/1) ... [2023-11-23 22:28:56,944 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 22:28:58,724 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 22:28:58,772 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 22:28:58,772 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@3ad19a4c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:28:58, skipping insertion in model container [2023-11-23 22:28:58,772 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 22:28:58,773 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2023-11-23 22:28:58,775 INFO L158 Benchmark]: Toolchain (without parser) took 1945.36ms. Allocated memory is still 151.0MB. Free memory was 111.8MB in the beginning and 66.9MB in the end (delta: 44.9MB). Peak memory consumption was 46.1MB. Max. memory is 16.1GB. [2023-11-23 22:28:58,776 INFO L158 Benchmark]: CDTParser took 0.49ms. Allocated memory is still 100.7MB. Free memory was 70.6MB in the beginning and 70.6MB in the end (delta: 29.5kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 22:28:58,777 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1938.87ms. Allocated memory is still 151.0MB. Free memory was 111.5MB in the beginning and 66.9MB in the end (delta: 44.7MB). Peak memory consumption was 46.1MB. Max. memory is 16.1GB. [2023-11-23 22:28:58,778 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.49ms. Allocated memory is still 100.7MB. Free memory was 70.6MB in the beginning and 70.6MB in the end (delta: 29.5kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1938.87ms. Allocated memory is still 151.0MB. Free memory was 111.5MB in the beginning and 66.9MB in the end (delta: 44.7MB). Peak memory consumption was 46.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 2975]: 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_cbb9d36d-1eae-4c9a-b767-5ad1632e4235/bin/uautomizer-verify-zZY32mL2XJ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbb9d36d-1eae-4c9a-b767-5ad1632e4235/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_cbb9d36d-1eae-4c9a-b767-5ad1632e4235/bin/uautomizer-verify-zZY32mL2XJ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbb9d36d-1eae-4c9a-b767-5ad1632e4235/bin/uautomizer-verify-zZY32mL2XJ/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ddv-machzwd/ddv_machzwd_outb_p.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbb9d36d-1eae-4c9a-b767-5ad1632e4235/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_cbb9d36d-1eae-4c9a-b767-5ad1632e4235/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 5d4ac8f9993fdd9a611524b9b9f0ae991f3672b4fa16738dbd64025282f00ca6 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 22:29:01,075 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 22:29:01,164 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbb9d36d-1eae-4c9a-b767-5ad1632e4235/bin/uautomizer-verify-zZY32mL2XJ/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2023-11-23 22:29:01,187 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 22:29:01,187 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 22:29:01,218 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 22:29:01,219 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 22:29:01,220 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 22:29:01,221 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 22:29:01,221 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 22:29:01,222 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-23 22:29:01,223 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-23 22:29:01,223 INFO L153 SettingsManager]: * Use SBE=true [2023-11-23 22:29:01,224 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 22:29:01,225 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-23 22:29:01,225 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 22:29:01,226 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-23 22:29:01,226 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 22:29:01,227 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-23 22:29:01,227 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-23 22:29:01,228 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-23 22:29:01,229 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 22:29:01,229 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-23 22:29:01,230 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-23 22:29:01,230 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-23 22:29:01,230 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-23 22:29:01,231 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-23 22:29:01,231 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 22:29:01,232 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 22:29:01,232 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-23 22:29:01,233 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 22:29:01,233 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 22:29:01,233 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 22:29:01,234 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 22:29:01,234 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 22:29:01,234 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-11-23 22:29:01,235 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-23 22:29:01,235 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 22:29:01,235 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-23 22:29:01,235 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-23 22:29:01,236 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 22:29:01,236 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-11-23 22:29:01,236 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_cbb9d36d-1eae-4c9a-b767-5ad1632e4235/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbb9d36d-1eae-4c9a-b767-5ad1632e4235/bin/uautomizer-verify-zZY32mL2XJ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5d4ac8f9993fdd9a611524b9b9f0ae991f3672b4fa16738dbd64025282f00ca6 [2023-11-23 22:29:01,596 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 22:29:01,631 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 22:29:01,634 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 22:29:01,635 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 22:29:01,636 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 22:29:01,637 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbb9d36d-1eae-4c9a-b767-5ad1632e4235/bin/uautomizer-verify-zZY32mL2XJ/../../sv-benchmarks/c/ddv-machzwd/ddv_machzwd_outb_p.i [2023-11-23 22:29:04,801 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 22:29:05,341 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 22:29:05,341 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbb9d36d-1eae-4c9a-b767-5ad1632e4235/sv-benchmarks/c/ddv-machzwd/ddv_machzwd_outb_p.i [2023-11-23 22:29:05,374 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbb9d36d-1eae-4c9a-b767-5ad1632e4235/bin/uautomizer-verify-zZY32mL2XJ/data/b768f9ca0/40cdd2b73d2b4c1e8e6754faa2a61076/FLAG6459463d8 [2023-11-23 22:29:05,393 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbb9d36d-1eae-4c9a-b767-5ad1632e4235/bin/uautomizer-verify-zZY32mL2XJ/data/b768f9ca0/40cdd2b73d2b4c1e8e6754faa2a61076 [2023-11-23 22:29:05,396 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 22:29:05,398 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 22:29:05,400 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 22:29:05,401 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 22:29:05,407 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 22:29:05,408 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 10:29:05" (1/1) ... [2023-11-23 22:29:05,410 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7d4ed53a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:29:05, skipping insertion in model container [2023-11-23 22:29:05,410 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 10:29:05" (1/1) ... [2023-11-23 22:29:05,523 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 22:29:07,380 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 22:29:07,464 INFO L199 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2023-11-23 22:29:07,496 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 22:29:07,727 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 22:29:07,761 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 22:29:08,051 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 22:29:08,311 WARN L675 CHandler]: The function __VERIFIER_nondet_sector_t is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 22:29:08,319 INFO L206 MainTranslator]: Completed translation [2023-11-23 22:29:08,321 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:29:08 WrapperNode [2023-11-23 22:29:08,321 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 22:29:08,322 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 22:29:08,323 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 22:29:08,323 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 22:29:08,332 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:29:08" (1/1) ... [2023-11-23 22:29:08,442 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:29:08" (1/1) ... [2023-11-23 22:29:08,518 INFO L138 Inliner]: procedures = 482, calls = 840, calls flagged for inlining = 55, calls inlined = 37, statements flattened = 985 [2023-11-23 22:29:08,519 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 22:29:08,519 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 22:29:08,520 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 22:29:08,520 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 22:29:08,531 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:29:08" (1/1) ... [2023-11-23 22:29:08,532 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:29:08" (1/1) ... [2023-11-23 22:29:08,542 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:29:08" (1/1) ... [2023-11-23 22:29:08,542 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:29:08" (1/1) ... [2023-11-23 22:29:08,593 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:29:08" (1/1) ... [2023-11-23 22:29:08,603 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:29:08" (1/1) ... [2023-11-23 22:29:08,658 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:29:08" (1/1) ... [2023-11-23 22:29:08,667 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:29:08" (1/1) ... [2023-11-23 22:29:08,683 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 22:29:08,684 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 22:29:08,684 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 22:29:08,685 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 22:29:08,686 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:29:08" (1/1) ... [2023-11-23 22:29:08,694 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 22:29:08,726 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbb9d36d-1eae-4c9a-b767-5ad1632e4235/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:29:08,749 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbb9d36d-1eae-4c9a-b767-5ad1632e4235/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 22:29:08,777 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbb9d36d-1eae-4c9a-b767-5ad1632e4235/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 22:29:08,819 INFO L130 BoogieDeclarations]: Found specification of procedure zf_timer_off [2023-11-23 22:29:08,819 INFO L138 BoogieDeclarations]: Found implementation of procedure zf_timer_off [2023-11-23 22:29:08,819 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~C_UINT~X~C_ULONG~TO~C_INT [2023-11-23 22:29:08,820 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~C_UINT~X~C_ULONG~TO~C_INT [2023-11-23 22:29:08,820 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-23 22:29:08,820 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_atomic_begin [2023-11-23 22:29:08,820 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2023-11-23 22:29:08,821 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2023-11-23 22:29:08,821 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-23 22:29:08,823 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2 [2023-11-23 22:29:08,824 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-23 22:29:08,824 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2023-11-23 22:29:08,824 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2023-11-23 22:29:08,824 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2023-11-23 22:29:08,825 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-23 22:29:08,825 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_atomic_end [2023-11-23 22:29:08,825 INFO L130 BoogieDeclarations]: Found specification of procedure zf_get_control [2023-11-23 22:29:08,825 INFO L138 BoogieDeclarations]: Found implementation of procedure zf_get_control [2023-11-23 22:29:08,826 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~C_INT [2023-11-23 22:29:08,826 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~C_INT [2023-11-23 22:29:08,826 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-23 22:29:08,827 INFO L130 BoogieDeclarations]: Found specification of procedure request_region [2023-11-23 22:29:08,827 INFO L138 BoogieDeclarations]: Found implementation of procedure request_region [2023-11-23 22:29:08,827 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 22:29:08,827 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-23 22:29:08,829 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2023-11-23 22:29:08,829 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2023-11-23 22:29:08,829 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_irqsave [2023-11-23 22:29:08,829 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_irqsave [2023-11-23 22:29:08,830 INFO L130 BoogieDeclarations]: Found specification of procedure release_region [2023-11-23 22:29:08,831 INFO L138 BoogieDeclarations]: Found implementation of procedure release_region [2023-11-23 22:29:08,831 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 22:29:08,831 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 22:29:08,831 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_init [2023-11-23 22:29:08,832 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_init [2023-11-23 22:29:08,832 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2023-11-23 22:29:08,833 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2023-11-23 22:29:08,833 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2023-11-23 22:29:08,833 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-11-23 22:29:08,834 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-23 22:29:08,834 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-23 22:29:08,834 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer [2023-11-23 22:29:08,834 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer [2023-11-23 22:29:08,834 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-23 22:29:08,835 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-23 22:29:08,835 INFO L130 BoogieDeclarations]: Found specification of procedure add_timer [2023-11-23 22:29:08,835 INFO L138 BoogieDeclarations]: Found implementation of procedure add_timer [2023-11-23 22:29:08,835 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2023-11-23 22:29:08,835 INFO L130 BoogieDeclarations]: Found specification of procedure cdev_add [2023-11-23 22:29:08,836 INFO L138 BoogieDeclarations]: Found implementation of procedure cdev_add [2023-11-23 22:29:08,836 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2023-11-23 22:29:08,836 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2023-11-23 22:29:08,837 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2023-11-23 22:29:08,837 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-23 22:29:08,837 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2023-11-23 22:29:08,838 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2023-11-23 22:29:08,838 INFO L130 BoogieDeclarations]: Found specification of procedure outw [2023-11-23 22:29:08,838 INFO L138 BoogieDeclarations]: Found implementation of procedure outw [2023-11-23 22:29:08,838 INFO L130 BoogieDeclarations]: Found specification of procedure outb [2023-11-23 22:29:08,839 INFO L138 BoogieDeclarations]: Found implementation of procedure outb [2023-11-23 22:29:08,839 INFO L130 BoogieDeclarations]: Found specification of procedure misc_deregister [2023-11-23 22:29:08,839 INFO L138 BoogieDeclarations]: Found implementation of procedure misc_deregister [2023-11-23 22:29:08,840 INFO L130 BoogieDeclarations]: Found specification of procedure assert_context_process [2023-11-23 22:29:08,841 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_context_process [2023-11-23 22:29:08,841 INFO L130 BoogieDeclarations]: Found specification of procedure zf_set_control [2023-11-23 22:29:08,842 INFO L138 BoogieDeclarations]: Found implementation of procedure zf_set_control [2023-11-23 22:29:08,842 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~C_ULONG~X~$Pointer$~TO~C_LONG [2023-11-23 22:29:08,842 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~C_ULONG~X~$Pointer$~TO~C_LONG [2023-11-23 22:29:08,843 INFO L130 BoogieDeclarations]: Found specification of procedure zf_readw [2023-11-23 22:29:08,843 INFO L138 BoogieDeclarations]: Found implementation of procedure zf_readw [2023-11-23 22:29:08,843 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2023-11-23 22:29:08,843 INFO L130 BoogieDeclarations]: Found specification of procedure zf_ping [2023-11-23 22:29:08,843 INFO L138 BoogieDeclarations]: Found implementation of procedure zf_ping [2023-11-23 22:29:08,844 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2023-11-23 22:29:08,844 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2023-11-23 22:29:08,845 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~C_ULONG~TO~VOID [2023-11-23 22:29:08,845 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~C_ULONG~TO~VOID [2023-11-23 22:29:09,278 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 22:29:09,284 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 22:29:14,555 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 22:29:14,708 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 22:29:14,709 INFO L309 CfgBuilder]: Removed 4 assume(true) statements. [2023-11-23 22:29:14,710 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 10:29:14 BoogieIcfgContainer [2023-11-23 22:29:14,710 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 22:29:14,712 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 22:29:14,712 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 22:29:14,715 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 22:29:14,716 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 10:29:05" (1/3) ... [2023-11-23 22:29:14,717 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b8d3863 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 10:29:14, skipping insertion in model container [2023-11-23 22:29:14,717 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:29:08" (2/3) ... [2023-11-23 22:29:14,717 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b8d3863 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 10:29:14, skipping insertion in model container [2023-11-23 22:29:14,718 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 10:29:14" (3/3) ... [2023-11-23 22:29:14,719 INFO L112 eAbstractionObserver]: Analyzing ICFG ddv_machzwd_outb_p.i [2023-11-23 22:29:14,755 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 22:29:14,755 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 205 error locations. [2023-11-23 22:29:14,841 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 22:29:14,851 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;@600bb413, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 22:29:14,851 INFO L358 AbstractCegarLoop]: Starting to check reachability of 205 error locations. [2023-11-23 22:29:14,859 INFO L276 IsEmpty]: Start isEmpty. Operand has 603 states, 293 states have (on average 1.993174061433447) internal successors, (584), 504 states have internal predecessors, (584), 78 states have call successors, (78), 26 states have call predecessors, (78), 26 states have return successors, (78), 78 states have call predecessors, (78), 78 states have call successors, (78) [2023-11-23 22:29:14,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-11-23 22:29:14,866 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 22:29:14,867 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2023-11-23 22:29:14,868 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting spin_lock_initErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [spin_lock_initErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, spin_lock_initErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, spin_lock_initErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 202 more)] === [2023-11-23 22:29:14,874 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:29:14,874 INFO L85 PathProgramCache]: Analyzing trace with hash 40375456, now seen corresponding path program 1 times [2023-11-23 22:29:14,891 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-23 22:29:14,892 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [430382337] [2023-11-23 22:29:14,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:29:14,893 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 22:29:14,893 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbb9d36d-1eae-4c9a-b767-5ad1632e4235/bin/uautomizer-verify-zZY32mL2XJ/mathsat [2023-11-23 22:29:14,896 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbb9d36d-1eae-4c9a-b767-5ad1632e4235/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 22:29:14,934 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbb9d36d-1eae-4c9a-b767-5ad1632e4235/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 22:29:15,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:29:15,417 INFO L262 TraceCheckSpWp]: Trace formula consists of 404 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-23 22:29:15,424 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:29:15,629 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 22:29:15,629 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 22:29:15,630 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-23 22:29:15,631 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [430382337] [2023-11-23 22:29:15,632 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [430382337] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:29:15,632 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:29:15,632 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 22:29:15,634 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [320676673] [2023-11-23 22:29:15,635 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:29:15,640 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-23 22:29:15,640 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-23 22:29:15,743 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-23 22:29:15,744 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-23 22:29:15,747 INFO L87 Difference]: Start difference. First operand has 603 states, 293 states have (on average 1.993174061433447) internal successors, (584), 504 states have internal predecessors, (584), 78 states have call successors, (78), 26 states have call predecessors, (78), 26 states have return successors, (78), 78 states have call predecessors, (78), 78 states have call successors, (78) Second operand has 5 states, 3 states have (on average 1.0) internal successors, (3), 3 states have internal predecessors, (3), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:29:17,817 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 22:29:19,830 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 22:29:21,836 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 22:29:26,064 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 22:29:26,064 INFO L93 Difference]: Finished difference Result 1091 states and 1328 transitions. [2023-11-23 22:29:26,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-23 22:29:26,068 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 3 states have (on average 1.0) internal successors, (3), 3 states have internal predecessors, (3), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2023-11-23 22:29:26,068 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 22:29:26,089 INFO L225 Difference]: With dead ends: 1091 [2023-11-23 22:29:26,089 INFO L226 Difference]: Without dead ends: 1089 [2023-11-23 22:29:26,090 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-11-23 22:29:26,094 INFO L413 NwaCegarLoop]: 609 mSDtfsCounter, 632 mSDsluCounter, 1361 mSDsCounter, 0 mSdLazyCounter, 1249 mSolverCounterSat, 4 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 633 SdHoareTripleChecker+Valid, 1970 SdHoareTripleChecker+Invalid, 1256 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1249 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.1s IncrementalHoareTripleChecker+Time [2023-11-23 22:29:26,095 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [633 Valid, 1970 Invalid, 1256 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1249 Invalid, 3 Unknown, 0 Unchecked, 10.1s Time] [2023-11-23 22:29:26,112 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1089 states. [2023-11-23 22:29:26,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1089 to 883. [2023-11-23 22:29:26,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 883 states, 490 states have (on average 1.969387755102041) internal successors, (965), 712 states have internal predecessors, (965), 138 states have call successors, (138), 50 states have call predecessors, (138), 50 states have return successors, (138), 131 states have call predecessors, (138), 138 states have call successors, (138) [2023-11-23 22:29:26,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 883 states to 883 states and 1241 transitions. [2023-11-23 22:29:26,214 INFO L78 Accepts]: Start accepts. Automaton has 883 states and 1241 transitions. Word has length 4 [2023-11-23 22:29:26,215 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 22:29:26,215 INFO L495 AbstractCegarLoop]: Abstraction has 883 states and 1241 transitions. [2023-11-23 22:29:26,215 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 3 states have (on average 1.0) internal successors, (3), 3 states have internal predecessors, (3), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:29:26,215 INFO L276 IsEmpty]: Start isEmpty. Operand 883 states and 1241 transitions. [2023-11-23 22:29:26,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-11-23 22:29:26,216 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 22:29:26,216 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2023-11-23 22:29:26,233 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbb9d36d-1eae-4c9a-b767-5ad1632e4235/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)] Ended with exit code 0 [2023-11-23 22:29:26,422 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbb9d36d-1eae-4c9a-b767-5ad1632e4235/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 22:29:26,423 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting spin_lock_initErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [spin_lock_initErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, spin_lock_initErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, spin_lock_initErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 202 more)] === [2023-11-23 22:29:26,424 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:29:26,424 INFO L85 PathProgramCache]: Analyzing trace with hash 40375457, now seen corresponding path program 1 times [2023-11-23 22:29:26,425 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-23 22:29:26,425 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [472598641] [2023-11-23 22:29:26,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:29:26,426 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 22:29:26,426 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbb9d36d-1eae-4c9a-b767-5ad1632e4235/bin/uautomizer-verify-zZY32mL2XJ/mathsat [2023-11-23 22:29:26,428 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbb9d36d-1eae-4c9a-b767-5ad1632e4235/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 22:29:26,467 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbb9d36d-1eae-4c9a-b767-5ad1632e4235/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 22:29:26,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:29:26,997 INFO L262 TraceCheckSpWp]: Trace formula consists of 404 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-23 22:29:26,999 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:29:27,149 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 22:29:27,149 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 22:29:27,149 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-23 22:29:27,149 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [472598641] [2023-11-23 22:29:27,150 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [472598641] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:29:27,150 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:29:27,150 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 22:29:27,150 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [182807952] [2023-11-23 22:29:27,150 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:29:27,152 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-23 22:29:27,152 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-23 22:29:27,153 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-23 22:29:27,153 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-23 22:29:27,153 INFO L87 Difference]: Start difference. First operand 883 states and 1241 transitions. Second operand has 5 states, 3 states have (on average 1.0) internal successors, (3), 3 states have internal predecessors, (3), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:29:29,184 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 22:29:31,187 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 22:29:33,195 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 22:29:37,508 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 22:29:37,508 INFO L93 Difference]: Finished difference Result 1004 states and 1322 transitions. [2023-11-23 22:29:37,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-23 22:29:37,509 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 3 states have (on average 1.0) internal successors, (3), 3 states have internal predecessors, (3), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2023-11-23 22:29:37,509 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 22:29:37,520 INFO L225 Difference]: With dead ends: 1004 [2023-11-23 22:29:37,521 INFO L226 Difference]: Without dead ends: 1004 [2023-11-23 22:29:37,521 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-11-23 22:29:37,523 INFO L413 NwaCegarLoop]: 689 mSDtfsCounter, 245 mSDsluCounter, 1467 mSDsCounter, 0 mSdLazyCounter, 1002 mSolverCounterSat, 1 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 246 SdHoareTripleChecker+Valid, 2156 SdHoareTripleChecker+Invalid, 1006 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1002 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.2s IncrementalHoareTripleChecker+Time [2023-11-23 22:29:37,523 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [246 Valid, 2156 Invalid, 1006 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1002 Invalid, 3 Unknown, 0 Unchecked, 10.2s Time] [2023-11-23 22:29:37,527 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1004 states. [2023-11-23 22:29:37,609 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1004 to 946. [2023-11-23 22:29:37,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 946 states, 521 states have (on average 1.9289827255278311) internal successors, (1005), 744 states have internal predecessors, (1005), 157 states have call successors, (157), 63 states have call predecessors, (157), 63 states have return successors, (157), 150 states have call predecessors, (157), 157 states have call successors, (157) [2023-11-23 22:29:37,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 946 states to 946 states and 1319 transitions. [2023-11-23 22:29:37,625 INFO L78 Accepts]: Start accepts. Automaton has 946 states and 1319 transitions. Word has length 4 [2023-11-23 22:29:37,625 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 22:29:37,626 INFO L495 AbstractCegarLoop]: Abstraction has 946 states and 1319 transitions. [2023-11-23 22:29:37,626 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 3 states have (on average 1.0) internal successors, (3), 3 states have internal predecessors, (3), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:29:37,627 INFO L276 IsEmpty]: Start isEmpty. Operand 946 states and 1319 transitions. [2023-11-23 22:29:37,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-11-23 22:29:37,628 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 22:29:37,628 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:29:37,636 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbb9d36d-1eae-4c9a-b767-5ad1632e4235/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 22:29:37,834 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbb9d36d-1eae-4c9a-b767-5ad1632e4235/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 22:29:37,834 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [spin_lock_initErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, spin_lock_initErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, spin_lock_initErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 202 more)] === [2023-11-23 22:29:37,835 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:29:37,835 INFO L85 PathProgramCache]: Analyzing trace with hash -1266514677, now seen corresponding path program 1 times [2023-11-23 22:29:37,836 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-23 22:29:37,836 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [157220353] [2023-11-23 22:29:37,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:29:37,837 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 22:29:37,837 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbb9d36d-1eae-4c9a-b767-5ad1632e4235/bin/uautomizer-verify-zZY32mL2XJ/mathsat [2023-11-23 22:29:37,838 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbb9d36d-1eae-4c9a-b767-5ad1632e4235/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 22:29:37,844 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbb9d36d-1eae-4c9a-b767-5ad1632e4235/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 22:29:38,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:29:38,368 INFO L262 TraceCheckSpWp]: Trace formula consists of 451 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-23 22:29:38,370 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:29:38,480 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 22:29:38,480 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 22:29:38,481 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-23 22:29:38,481 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [157220353] [2023-11-23 22:29:38,481 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [157220353] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:29:38,482 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:29:38,482 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-23 22:29:38,482 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2127625545] [2023-11-23 22:29:38,482 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:29:38,483 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 22:29:38,483 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-23 22:29:38,484 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 22:29:38,485 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 22:29:38,485 INFO L87 Difference]: Start difference. First operand 946 states and 1319 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-23 22:29:40,515 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 22:29:42,689 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 22:29:42,689 INFO L93 Difference]: Finished difference Result 1145 states and 1399 transitions. [2023-11-23 22:29:42,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 22:29:42,690 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 9 [2023-11-23 22:29:42,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 22:29:42,699 INFO L225 Difference]: With dead ends: 1145 [2023-11-23 22:29:42,699 INFO L226 Difference]: Without dead ends: 1145 [2023-11-23 22:29:42,700 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 7 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 22:29:42,701 INFO L413 NwaCegarLoop]: 566 mSDtfsCounter, 609 mSDsluCounter, 463 mSDsCounter, 0 mSdLazyCounter, 457 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 609 SdHoareTripleChecker+Valid, 1029 SdHoareTripleChecker+Invalid, 465 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 457 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2023-11-23 22:29:42,702 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [609 Valid, 1029 Invalid, 465 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 457 Invalid, 1 Unknown, 0 Unchecked, 4.1s Time] [2023-11-23 22:29:42,705 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1145 states. [2023-11-23 22:29:42,738 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1145 to 945. [2023-11-23 22:29:42,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 945 states, 521 states have (on average 1.9193857965451055) internal successors, (1000), 743 states have internal predecessors, (1000), 157 states have call successors, (157), 63 states have call predecessors, (157), 63 states have return successors, (157), 150 states have call predecessors, (157), 157 states have call successors, (157) [2023-11-23 22:29:42,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 945 states to 945 states and 1314 transitions. [2023-11-23 22:29:42,748 INFO L78 Accepts]: Start accepts. Automaton has 945 states and 1314 transitions. Word has length 9 [2023-11-23 22:29:42,749 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 22:29:42,749 INFO L495 AbstractCegarLoop]: Abstraction has 945 states and 1314 transitions. [2023-11-23 22:29:42,749 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-23 22:29:42,750 INFO L276 IsEmpty]: Start isEmpty. Operand 945 states and 1314 transitions. [2023-11-23 22:29:42,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-11-23 22:29:42,750 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 22:29:42,751 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:29:42,763 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbb9d36d-1eae-4c9a-b767-5ad1632e4235/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 22:29:42,958 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbb9d36d-1eae-4c9a-b767-5ad1632e4235/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 22:29:42,958 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [spin_lock_initErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, spin_lock_initErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, spin_lock_initErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 202 more)] === [2023-11-23 22:29:42,959 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:29:42,959 INFO L85 PathProgramCache]: Analyzing trace with hash -1266514676, now seen corresponding path program 1 times [2023-11-23 22:29:42,960 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-23 22:29:42,960 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1936280747] [2023-11-23 22:29:42,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:29:42,960 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-23 22:29:42,961 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbb9d36d-1eae-4c9a-b767-5ad1632e4235/bin/uautomizer-verify-zZY32mL2XJ/mathsat [2023-11-23 22:29:42,962 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbb9d36d-1eae-4c9a-b767-5ad1632e4235/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 22:29:42,963 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbb9d36d-1eae-4c9a-b767-5ad1632e4235/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 22:29:43,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:29:43,505 INFO L262 TraceCheckSpWp]: Trace formula consists of 451 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-23 22:29:43,507 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:29:43,687 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 22:29:43,688 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 22:29:43,688 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-23 22:29:43,688 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1936280747] [2023-11-23 22:29:43,688 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1936280747] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:29:43,688 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:29:43,688 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 22:29:43,689 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [367471121] [2023-11-23 22:29:43,689 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:29:43,689 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-23 22:29:43,689 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-23 22:29:43,690 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-23 22:29:43,690 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-23 22:29:43,690 INFO L87 Difference]: Start difference. First operand 945 states and 1314 transitions. Second operand has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-23 22:29:45,718 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 22:29:47,723 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 22:29:50,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 22:29:50,772 INFO L93 Difference]: Finished difference Result 1008 states and 1326 transitions. [2023-11-23 22:29:50,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-23 22:29:50,773 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 9 [2023-11-23 22:29:50,773 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 22:29:50,780 INFO L225 Difference]: With dead ends: 1008 [2023-11-23 22:29:50,781 INFO L226 Difference]: Without dead ends: 1008 [2023-11-23 22:29:50,781 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-23 22:29:50,790 INFO L413 NwaCegarLoop]: 688 mSDtfsCounter, 244 mSDsluCounter, 557 mSDsCounter, 0 mSdLazyCounter, 509 mSolverCounterSat, 3 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 244 SdHoareTripleChecker+Valid, 1245 SdHoareTripleChecker+Invalid, 514 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 509 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.0s IncrementalHoareTripleChecker+Time [2023-11-23 22:29:50,790 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [244 Valid, 1245 Invalid, 514 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 509 Invalid, 2 Unknown, 0 Unchecked, 7.0s Time] [2023-11-23 22:29:50,793 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1008 states. [2023-11-23 22:29:50,828 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1008 to 948. [2023-11-23 22:29:50,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 948 states, 524 states have (on average 1.9141221374045803) internal successors, (1003), 746 states have internal predecessors, (1003), 157 states have call successors, (157), 63 states have call predecessors, (157), 63 states have return successors, (157), 150 states have call predecessors, (157), 157 states have call successors, (157) [2023-11-23 22:29:50,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 948 states to 948 states and 1317 transitions. [2023-11-23 22:29:50,839 INFO L78 Accepts]: Start accepts. Automaton has 948 states and 1317 transitions. Word has length 9 [2023-11-23 22:29:50,839 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 22:29:50,839 INFO L495 AbstractCegarLoop]: Abstraction has 948 states and 1317 transitions. [2023-11-23 22:29:50,840 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-23 22:29:50,840 INFO L276 IsEmpty]: Start isEmpty. Operand 948 states and 1317 transitions. [2023-11-23 22:29:50,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-11-23 22:29:50,841 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 22:29:50,841 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:29:50,855 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbb9d36d-1eae-4c9a-b767-5ad1632e4235/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)] Forceful destruction successful, exit code 0 [2023-11-23 22:29:51,049 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbb9d36d-1eae-4c9a-b767-5ad1632e4235/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 22:29:51,050 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [spin_lock_initErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, spin_lock_initErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, spin_lock_initErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 202 more)] === [2023-11-23 22:29:51,050 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:29:51,050 INFO L85 PathProgramCache]: Analyzing trace with hash -1643938270, now seen corresponding path program 1 times [2023-11-23 22:29:51,051 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-23 22:29:51,052 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1288558309] [2023-11-23 22:29:51,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:29:51,052 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 22:29:51,052 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbb9d36d-1eae-4c9a-b767-5ad1632e4235/bin/uautomizer-verify-zZY32mL2XJ/mathsat [2023-11-23 22:29:51,054 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbb9d36d-1eae-4c9a-b767-5ad1632e4235/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 22:29:51,069 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbb9d36d-1eae-4c9a-b767-5ad1632e4235/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