./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test5-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 826ab2ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b71100f-0ab2-467a-b5b1-1d0cc06159cd/bin/uautomizer-verify-qhAvR1uOyd/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b71100f-0ab2-467a-b5b1-1d0cc06159cd/bin/uautomizer-verify-qhAvR1uOyd/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b71100f-0ab2-467a-b5b1-1d0cc06159cd/bin/uautomizer-verify-qhAvR1uOyd/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b71100f-0ab2-467a-b5b1-1d0cc06159cd/bin/uautomizer-verify-qhAvR1uOyd/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test5-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b71100f-0ab2-467a-b5b1-1d0cc06159cd/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b71100f-0ab2-467a-b5b1-1d0cc06159cd/bin/uautomizer-verify-qhAvR1uOyd --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 c78ec383567aee735f8895b5666134248c3b9de1b96295d83b3c1c6979534c2b --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 12:46:24,747 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 12:46:24,859 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b71100f-0ab2-467a-b5b1-1d0cc06159cd/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-11-13 12:46:24,872 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 12:46:24,872 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-13 12:46:24,914 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 12:46:24,915 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-13 12:46:24,915 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-13 12:46:24,916 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-13 12:46:24,916 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-13 12:46:24,916 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 12:46:24,917 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-13 12:46:24,917 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 12:46:24,917 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 12:46:24,917 INFO L153 SettingsManager]: * Use SBE=true [2024-11-13 12:46:24,918 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 12:46:24,918 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-13 12:46:24,918 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-13 12:46:24,918 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-13 12:46:24,918 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 12:46:24,919 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-13 12:46:24,919 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-13 12:46:24,919 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-13 12:46:24,919 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 12:46:24,919 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-13 12:46:24,919 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 12:46:24,920 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-13 12:46:24,920 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-13 12:46:24,920 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 12:46:24,920 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 12:46:24,920 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-13 12:46:24,921 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-13 12:46:24,921 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-13 12:46:24,921 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 12:46:24,921 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 12:46:24,921 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 12:46:24,921 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-13 12:46:24,921 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-13 12:46:24,921 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-13 12:46:24,921 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-13 12:46:24,922 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-13 12:46:24,922 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-13 12:46:24,922 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_6b71100f-0ab2-467a-b5b1-1d0cc06159cd/bin/uautomizer-verify-qhAvR1uOyd 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 -> c78ec383567aee735f8895b5666134248c3b9de1b96295d83b3c1c6979534c2b [2024-11-13 12:46:25,253 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 12:46:25,262 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 12:46:25,266 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 12:46:25,268 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 12:46:25,268 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 12:46:25,271 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b71100f-0ab2-467a-b5b1-1d0cc06159cd/bin/uautomizer-verify-qhAvR1uOyd/../../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test5-2.i Unable to find full path for "g++" [2024-11-13 12:46:27,307 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 12:46:27,638 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 12:46:27,638 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b71100f-0ab2-467a-b5b1-1d0cc06159cd/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test5-2.i [2024-11-13 12:46:27,655 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b71100f-0ab2-467a-b5b1-1d0cc06159cd/bin/uautomizer-verify-qhAvR1uOyd/data/005060207/4e4f350a3ee143f1b8a42f65823814f3/FLAGed0df27b7 [2024-11-13 12:46:27,671 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b71100f-0ab2-467a-b5b1-1d0cc06159cd/bin/uautomizer-verify-qhAvR1uOyd/data/005060207/4e4f350a3ee143f1b8a42f65823814f3 [2024-11-13 12:46:27,673 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 12:46:27,675 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 12:46:27,676 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 12:46:27,676 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 12:46:27,681 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 12:46:27,682 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 12:46:27" (1/1) ... [2024-11-13 12:46:27,683 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3236b04f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:46:27, skipping insertion in model container [2024-11-13 12:46:27,683 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 12:46:27" (1/1) ... [2024-11-13 12:46:27,733 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 12:46:28,243 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 12:46:28,277 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 12:46:28,281 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 12:46:28,286 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 12:46:28,298 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 12:46:28,344 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 12:46:28,347 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 12:46:28,351 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 12:46:28,364 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 12:46:28,419 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 12:46:28,419 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 12:46:28,422 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 12:46:28,422 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 12:46:28,425 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 12:46:28,427 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 12:46:28,429 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 12:46:28,430 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 12:46:28,431 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 12:46:28,436 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 12:46:28,456 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 12:46:28,479 ERROR L321 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) [2024-11-13 12:46:28,479 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@5ec3f6a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:46:28, skipping insertion in model container [2024-11-13 12:46:28,480 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 12:46:28,481 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2024-11-13 12:46:28,485 INFO L158 Benchmark]: Toolchain (without parser) took 808.99ms. Allocated memory is still 117.4MB. Free memory was 89.8MB in the beginning and 67.1MB in the end (delta: 22.7MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-11-13 12:46:28,485 INFO L158 Benchmark]: CDTParser took 0.85ms. Allocated memory is still 117.4MB. Free memory was 72.8MB in the beginning and 72.7MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 12:46:28,486 INFO L158 Benchmark]: CACSL2BoogieTranslator took 805.20ms. Allocated memory is still 117.4MB. Free memory was 89.8MB in the beginning and 67.1MB in the end (delta: 22.7MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-11-13 12:46:28,487 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.85ms. Allocated memory is still 117.4MB. Free memory was 72.8MB in the beginning and 72.7MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 805.20ms. Allocated memory is still 117.4MB. Free memory was 89.8MB in the beginning and 67.1MB in the end (delta: 22.7MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 757]: 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/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b71100f-0ab2-467a-b5b1-1d0cc06159cd/bin/uautomizer-verify-qhAvR1uOyd/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b71100f-0ab2-467a-b5b1-1d0cc06159cd/bin/uautomizer-verify-qhAvR1uOyd/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b71100f-0ab2-467a-b5b1-1d0cc06159cd/bin/uautomizer-verify-qhAvR1uOyd/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b71100f-0ab2-467a-b5b1-1d0cc06159cd/bin/uautomizer-verify-qhAvR1uOyd/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test5-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b71100f-0ab2-467a-b5b1-1d0cc06159cd/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b71100f-0ab2-467a-b5b1-1d0cc06159cd/bin/uautomizer-verify-qhAvR1uOyd --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 c78ec383567aee735f8895b5666134248c3b9de1b96295d83b3c1c6979534c2b --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 12:46:31,390 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 12:46:31,489 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b71100f-0ab2-467a-b5b1-1d0cc06159cd/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2024-11-13 12:46:31,500 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 12:46:31,500 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-13 12:46:31,548 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 12:46:31,548 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-13 12:46:31,549 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-13 12:46:31,549 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-13 12:46:31,549 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-13 12:46:31,549 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 12:46:31,549 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-13 12:46:31,550 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 12:46:31,550 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 12:46:31,550 INFO L153 SettingsManager]: * Use SBE=true [2024-11-13 12:46:31,550 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 12:46:31,550 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-13 12:46:31,550 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-13 12:46:31,554 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-13 12:46:31,554 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 12:46:31,554 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-13 12:46:31,554 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-13 12:46:31,554 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-13 12:46:31,554 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 12:46:31,554 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-13 12:46:31,554 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-13 12:46:31,555 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 12:46:31,555 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-13 12:46:31,555 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-13 12:46:31,555 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-13 12:46:31,555 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 12:46:31,555 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 12:46:31,555 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-13 12:46:31,555 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-13 12:46:31,556 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-13 12:46:31,556 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 12:46:31,556 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 12:46:31,556 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 12:46:31,556 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2024-11-13 12:46:31,556 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-13 12:46:31,556 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-13 12:46:31,556 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-13 12:46:31,556 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-13 12:46:31,557 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-13 12:46:31,557 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_6b71100f-0ab2-467a-b5b1-1d0cc06159cd/bin/uautomizer-verify-qhAvR1uOyd 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 -> c78ec383567aee735f8895b5666134248c3b9de1b96295d83b3c1c6979534c2b [2024-11-13 12:46:31,911 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 12:46:31,921 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 12:46:31,925 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 12:46:31,928 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 12:46:31,928 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 12:46:31,930 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b71100f-0ab2-467a-b5b1-1d0cc06159cd/bin/uautomizer-verify-qhAvR1uOyd/../../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test5-2.i Unable to find full path for "g++" [2024-11-13 12:46:33,965 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 12:46:34,398 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 12:46:34,402 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b71100f-0ab2-467a-b5b1-1d0cc06159cd/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test5-2.i [2024-11-13 12:46:34,425 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b71100f-0ab2-467a-b5b1-1d0cc06159cd/bin/uautomizer-verify-qhAvR1uOyd/data/faee8d822/c43a2e61a56a4b118c39a3505d07c5f3/FLAGc65c6c5d6 [2024-11-13 12:46:34,533 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b71100f-0ab2-467a-b5b1-1d0cc06159cd/bin/uautomizer-verify-qhAvR1uOyd/data/faee8d822/c43a2e61a56a4b118c39a3505d07c5f3 [2024-11-13 12:46:34,536 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 12:46:34,539 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 12:46:34,540 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 12:46:34,541 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 12:46:34,545 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 12:46:34,547 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 12:46:34" (1/1) ... [2024-11-13 12:46:34,549 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@26940248 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:46:34, skipping insertion in model container [2024-11-13 12:46:34,549 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 12:46:34" (1/1) ... [2024-11-13 12:46:34,609 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 12:46:35,217 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 12:46:35,274 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 12:46:35,282 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 12:46:35,294 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 12:46:35,306 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 12:46:35,368 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 12:46:35,371 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 12:46:35,375 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 12:46:35,383 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 12:46:35,426 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 12:46:35,426 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 12:46:35,431 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 12:46:35,432 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 12:46:35,435 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 12:46:35,439 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 12:46:35,443 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 12:46:35,444 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 12:46:35,445 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 12:46:35,450 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 12:46:35,458 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 12:46:35,481 INFO L197 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2024-11-13 12:46:35,496 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 12:46:35,535 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 12:46:35,551 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 12:46:35,554 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 12:46:35,557 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 12:46:35,563 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 12:46:35,608 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 12:46:35,610 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 12:46:35,620 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 12:46:35,625 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 12:46:35,648 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 12:46:35,648 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 12:46:35,651 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 12:46:35,651 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 12:46:35,653 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 12:46:35,655 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 12:46:35,676 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 12:46:35,678 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 12:46:35,679 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 12:46:35,684 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-13 12:46:35,687 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 12:46:35,698 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 12:46:35,825 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 12:46:35,871 INFO L204 MainTranslator]: Completed translation [2024-11-13 12:46:35,871 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:46:35 WrapperNode [2024-11-13 12:46:35,871 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 12:46:35,873 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 12:46:35,873 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 12:46:35,873 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 12:46:35,880 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:46:35" (1/1) ... [2024-11-13 12:46:35,915 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:46:35" (1/1) ... [2024-11-13 12:46:35,995 INFO L138 Inliner]: procedures = 180, calls = 426, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1561 [2024-11-13 12:46:35,996 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 12:46:35,996 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 12:46:35,996 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 12:46:35,996 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 12:46:36,005 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:46:35" (1/1) ... [2024-11-13 12:46:36,005 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:46:35" (1/1) ... [2024-11-13 12:46:36,023 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:46:35" (1/1) ... [2024-11-13 12:46:36,191 INFO L175 MemorySlicer]: Split 397 memory accesses to 3 slices as follows [2, 24, 371]. 93 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0]. The 91 writes are split as follows [0, 1, 90]. [2024-11-13 12:46:36,191 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:46:35" (1/1) ... [2024-11-13 12:46:36,192 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:46:35" (1/1) ... [2024-11-13 12:46:36,270 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:46:35" (1/1) ... [2024-11-13 12:46:36,280 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:46:35" (1/1) ... [2024-11-13 12:46:36,286 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:46:35" (1/1) ... [2024-11-13 12:46:36,291 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:46:35" (1/1) ... [2024-11-13 12:46:36,333 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 12:46:36,337 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 12:46:36,337 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 12:46:36,337 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 12:46:36,338 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:46:35" (1/1) ... [2024-11-13 12:46:36,348 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 12:46:36,362 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b71100f-0ab2-467a-b5b1-1d0cc06159cd/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 12:46:36,374 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b71100f-0ab2-467a-b5b1-1d0cc06159cd/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-13 12:46:36,379 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b71100f-0ab2-467a-b5b1-1d0cc06159cd/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-13 12:46:36,403 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2024-11-13 12:46:36,403 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2024-11-13 12:46:36,403 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#0 [2024-11-13 12:46:36,403 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#1 [2024-11-13 12:46:36,404 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#2 [2024-11-13 12:46:36,404 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2024-11-13 12:46:36,404 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2024-11-13 12:46:36,404 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2024-11-13 12:46:36,404 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-13 12:46:36,404 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-13 12:46:36,404 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#0 [2024-11-13 12:46:36,404 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#1 [2024-11-13 12:46:36,404 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#2 [2024-11-13 12:46:36,404 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#0 [2024-11-13 12:46:36,404 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#1 [2024-11-13 12:46:36,404 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#2 [2024-11-13 12:46:36,404 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-13 12:46:36,404 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 12:46:36,404 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-13 12:46:36,405 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-13 12:46:36,405 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-13 12:46:36,405 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-13 12:46:36,405 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-13 12:46:36,405 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-13 12:46:36,405 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-13 12:46:36,405 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-13 12:46:36,405 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2024-11-13 12:46:36,405 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2024-11-13 12:46:36,405 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2024-11-13 12:46:36,405 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-13 12:46:36,405 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2024-11-13 12:46:36,405 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2024-11-13 12:46:36,405 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 12:46:36,406 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 12:46:36,717 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 12:46:36,719 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 12:46:36,740 WARN L781 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2024-11-13 12:46:36,772 WARN L781 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2024-11-13 12:46:36,799 WARN L781 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2024-11-13 12:46:44,927 INFO L? ?]: Removed 1704 outVars from TransFormulas that were not future-live. [2024-11-13 12:46:44,927 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 12:46:44,995 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 12:46:44,995 INFO L316 CfgBuilder]: Removed 92 assume(true) statements. [2024-11-13 12:46:44,995 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 12:46:44 BoogieIcfgContainer [2024-11-13 12:46:44,995 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 12:46:45,003 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-13 12:46:45,003 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-13 12:46:45,008 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-13 12:46:45,009 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 12:46:34" (1/3) ... [2024-11-13 12:46:45,009 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5bbee45 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 12:46:45, skipping insertion in model container [2024-11-13 12:46:45,010 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:46:35" (2/3) ... [2024-11-13 12:46:45,010 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5bbee45 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 12:46:45, skipping insertion in model container [2024-11-13 12:46:45,011 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 12:46:44" (3/3) ... [2024-11-13 12:46:45,012 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_FNV_test5-2.i [2024-11-13 12:46:45,029 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-13 12:46:45,030 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG uthash_FNV_test5-2.i that has 6 procedures, 1653 locations, 1 initial locations, 54 loop locations, and 817 error locations. [2024-11-13 12:46:45,126 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-13 12:46:45,141 INFO L333 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, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=None, 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;@3bc12617, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-13 12:46:45,141 INFO L334 AbstractCegarLoop]: Starting to check reachability of 817 error locations. [2024-11-13 12:46:45,151 INFO L276 IsEmpty]: Start isEmpty. Operand has 1643 states, 815 states have (on average 2.223312883435583) internal successors, (1812), 1633 states have internal predecessors, (1812), 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) [2024-11-13 12:46:45,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2024-11-13 12:46:45,158 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 12:46:45,158 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2024-11-13 12:46:45,159 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 814 more)] === [2024-11-13 12:46:45,166 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 12:46:45,166 INFO L85 PathProgramCache]: Analyzing trace with hash 63053744, now seen corresponding path program 1 times [2024-11-13 12:46:45,177 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 12:46:45,177 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [617517598] [2024-11-13 12:46:45,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:46:45,178 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 12:46:45,178 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b71100f-0ab2-467a-b5b1-1d0cc06159cd/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 12:46:45,181 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b71100f-0ab2-467a-b5b1-1d0cc06159cd/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 12:46:45,183 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b71100f-0ab2-467a-b5b1-1d0cc06159cd/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-13 12:46:45,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:46:45,422 INFO L255 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-13 12:46:45,426 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 12:46:45,436 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 12:46:45,437 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 12:46:45,438 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 12:46:45,440 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [617517598] [2024-11-13 12:46:45,441 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [617517598] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 12:46:45,441 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 12:46:45,442 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 12:46:45,443 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [645228035] [2024-11-13 12:46:45,444 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 12:46:45,449 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-13 12:46:45,449 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 12:46:45,477 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-13 12:46:45,478 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-13 12:46:45,484 INFO L87 Difference]: Start difference. First operand has 1643 states, 815 states have (on average 2.223312883435583) internal successors, (1812), 1633 states have internal predecessors, (1812), 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 2 states, 2 states have (on average 2.5) 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) [2024-11-13 12:46:45,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 12:46:45,615 INFO L93 Difference]: Finished difference Result 1623 states and 1716 transitions. [2024-11-13 12:46:45,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-13 12:46:45,617 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 2.5) 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 [2024-11-13 12:46:45,617 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 12:46:45,642 INFO L225 Difference]: With dead ends: 1623 [2024-11-13 12:46:45,642 INFO L226 Difference]: Without dead ends: 1621 [2024-11-13 12:46:45,644 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-13 12:46:45,648 INFO L432 NwaCegarLoop]: 1716 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1716 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-13 12:46:45,648 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1716 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 12:46:45,669 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1621 states. [2024-11-13 12:46:45,761 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1621 to 1621. [2024-11-13 12:46:45,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1621 states, 805 states have (on average 2.099378881987578) internal successors, (1690), 1611 states have internal predecessors, (1690), 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) [2024-11-13 12:46:45,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1621 states to 1621 states and 1714 transitions. [2024-11-13 12:46:45,778 INFO L78 Accepts]: Start accepts. Automaton has 1621 states and 1714 transitions. Word has length 5 [2024-11-13 12:46:45,778 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 12:46:45,778 INFO L471 AbstractCegarLoop]: Abstraction has 1621 states and 1714 transitions. [2024-11-13 12:46:45,779 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 2.5) 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) [2024-11-13 12:46:45,779 INFO L276 IsEmpty]: Start isEmpty. Operand 1621 states and 1714 transitions. [2024-11-13 12:46:45,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2024-11-13 12:46:45,779 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 12:46:45,780 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2024-11-13 12:46:45,799 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b71100f-0ab2-467a-b5b1-1d0cc06159cd/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-13 12:46:45,984 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b71100f-0ab2-467a-b5b1-1d0cc06159cd/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 12:46:45,984 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 814 more)] === [2024-11-13 12:46:45,985 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 12:46:45,986 INFO L85 PathProgramCache]: Analyzing trace with hash 63053806, now seen corresponding path program 1 times [2024-11-13 12:46:45,986 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 12:46:45,986 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1013448791] [2024-11-13 12:46:45,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:46:45,989 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 12:46:45,989 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b71100f-0ab2-467a-b5b1-1d0cc06159cd/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 12:46:45,991 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b71100f-0ab2-467a-b5b1-1d0cc06159cd/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 12:46:45,993 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b71100f-0ab2-467a-b5b1-1d0cc06159cd/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-13 12:46:46,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:46:46,226 INFO L255 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-13 12:46:46,229 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 12:46:46,268 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 [2024-11-13 12:46:46,300 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 12:46:46,300 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 12:46:46,300 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 12:46:46,300 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1013448791] [2024-11-13 12:46:46,300 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1013448791] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 12:46:46,300 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 12:46:46,300 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 12:46:46,300 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1022537033] [2024-11-13 12:46:46,301 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 12:46:46,302 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 12:46:46,302 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 12:46:46,302 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 12:46:46,302 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 12:46:46,307 INFO L87 Difference]: Start difference. First operand 1621 states and 1714 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 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) [2024-11-13 12:46:50,115 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 12:46:50,116 INFO L93 Difference]: Finished difference Result 1757 states and 1882 transitions. [2024-11-13 12:46:50,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 12:46:50,117 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 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 [2024-11-13 12:46:50,117 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 12:46:50,123 INFO L225 Difference]: With dead ends: 1757 [2024-11-13 12:46:50,123 INFO L226 Difference]: Without dead ends: 1757 [2024-11-13 12:46:50,124 INFO L431 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 [2024-11-13 12:46:50,124 INFO L432 NwaCegarLoop]: 1181 mSDtfsCounter, 1264 mSDsluCounter, 282 mSDsCounter, 0 mSdLazyCounter, 1014 mSolverCounterSat, 99 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1275 SdHoareTripleChecker+Valid, 1463 SdHoareTripleChecker+Invalid, 1113 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 99 IncrementalHoareTripleChecker+Valid, 1014 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2024-11-13 12:46:50,125 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1275 Valid, 1463 Invalid, 1113 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [99 Valid, 1014 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2024-11-13 12:46:50,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1757 states. [2024-11-13 12:46:50,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1757 to 1529. [2024-11-13 12:46:50,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1529 states, 805 states have (on average 1.9850931677018633) internal successors, (1598), 1519 states have internal predecessors, (1598), 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) [2024-11-13 12:46:50,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1529 states to 1529 states and 1622 transitions. [2024-11-13 12:46:50,163 INFO L78 Accepts]: Start accepts. Automaton has 1529 states and 1622 transitions. Word has length 5 [2024-11-13 12:46:50,163 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 12:46:50,163 INFO L471 AbstractCegarLoop]: Abstraction has 1529 states and 1622 transitions. [2024-11-13 12:46:50,163 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 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) [2024-11-13 12:46:50,163 INFO L276 IsEmpty]: Start isEmpty. Operand 1529 states and 1622 transitions. [2024-11-13 12:46:50,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2024-11-13 12:46:50,163 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 12:46:50,164 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2024-11-13 12:46:50,182 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b71100f-0ab2-467a-b5b1-1d0cc06159cd/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-13 12:46:50,368 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b71100f-0ab2-467a-b5b1-1d0cc06159cd/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 12:46:50,368 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 814 more)] === [2024-11-13 12:46:50,368 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 12:46:50,368 INFO L85 PathProgramCache]: Analyzing trace with hash 63053807, now seen corresponding path program 1 times [2024-11-13 12:46:50,369 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 12:46:50,369 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1121765617] [2024-11-13 12:46:50,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:46:50,369 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 12:46:50,369 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b71100f-0ab2-467a-b5b1-1d0cc06159cd/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 12:46:50,371 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b71100f-0ab2-467a-b5b1-1d0cc06159cd/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 12:46:50,376 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b71100f-0ab2-467a-b5b1-1d0cc06159cd/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-13 12:46:50,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:46:50,557 INFO L255 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-13 12:46:50,560 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 12:46:50,577 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 [2024-11-13 12:46:50,610 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 12:46:50,610 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 12:46:50,610 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 12:46:50,610 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1121765617] [2024-11-13 12:46:50,610 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1121765617] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 12:46:50,610 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 12:46:50,610 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 12:46:50,610 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [448955847] [2024-11-13 12:46:50,610 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 12:46:50,611 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 12:46:50,611 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 12:46:50,611 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 12:46:50,611 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 12:46:50,611 INFO L87 Difference]: Start difference. First operand 1529 states and 1622 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 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) [2024-11-13 12:46:55,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 12:46:55,960 INFO L93 Difference]: Finished difference Result 2075 states and 2219 transitions. [2024-11-13 12:46:55,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 12:46:55,961 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 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 [2024-11-13 12:46:55,961 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 12:46:55,969 INFO L225 Difference]: With dead ends: 2075 [2024-11-13 12:46:55,969 INFO L226 Difference]: Without dead ends: 2075 [2024-11-13 12:46:55,969 INFO L431 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 [2024-11-13 12:46:55,970 INFO L432 NwaCegarLoop]: 1543 mSDtfsCounter, 768 mSDsluCounter, 711 mSDsCounter, 0 mSdLazyCounter, 1057 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 773 SdHoareTripleChecker+Valid, 2254 SdHoareTripleChecker+Invalid, 1082 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 1057 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2024-11-13 12:46:55,971 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [773 Valid, 2254 Invalid, 1082 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 1057 Invalid, 0 Unknown, 0 Unchecked, 5.2s Time] [2024-11-13 12:46:55,978 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2075 states. [2024-11-13 12:46:56,022 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2075 to 1696. [2024-11-13 12:46:56,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1696 states, 982 states have (on average 1.9531568228105907) internal successors, (1918), 1686 states have internal predecessors, (1918), 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) [2024-11-13 12:46:56,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1696 states to 1696 states and 1942 transitions. [2024-11-13 12:46:56,031 INFO L78 Accepts]: Start accepts. Automaton has 1696 states and 1942 transitions. Word has length 5 [2024-11-13 12:46:56,031 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 12:46:56,031 INFO L471 AbstractCegarLoop]: Abstraction has 1696 states and 1942 transitions. [2024-11-13 12:46:56,031 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 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) [2024-11-13 12:46:56,031 INFO L276 IsEmpty]: Start isEmpty. Operand 1696 states and 1942 transitions. [2024-11-13 12:46:56,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-11-13 12:46:56,032 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 12:46:56,032 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2024-11-13 12:46:56,054 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b71100f-0ab2-467a-b5b1-1d0cc06159cd/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-13 12:46:56,236 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b71100f-0ab2-467a-b5b1-1d0cc06159cd/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 12:46:56,236 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr620REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 814 more)] === [2024-11-13 12:46:56,237 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 12:46:56,237 INFO L85 PathProgramCache]: Analyzing trace with hash 1956303671, now seen corresponding path program 1 times [2024-11-13 12:46:56,237 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 12:46:56,237 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1991338522] [2024-11-13 12:46:56,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:46:56,237 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 12:46:56,237 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b71100f-0ab2-467a-b5b1-1d0cc06159cd/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 12:46:56,240 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b71100f-0ab2-467a-b5b1-1d0cc06159cd/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 12:46:56,242 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b71100f-0ab2-467a-b5b1-1d0cc06159cd/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-13 12:46:56,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:46:56,405 INFO L255 TraceCheckSpWp]: Trace formula consists of 30 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-13 12:46:56,407 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 12:46:56,413 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 [2024-11-13 12:46:56,437 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 12:46:56,437 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 12:46:56,437 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 12:46:56,437 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1991338522] [2024-11-13 12:46:56,437 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1991338522] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 12:46:56,437 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 12:46:56,438 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 12:46:56,438 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [4827995] [2024-11-13 12:46:56,438 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 12:46:56,438 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 12:46:56,438 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 12:46:56,438 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 12:46:56,439 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 12:46:56,439 INFO L87 Difference]: Start difference. First operand 1696 states and 1942 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 12:47:01,282 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 12:47:01,282 INFO L93 Difference]: Finished difference Result 3010 states and 3470 transitions. [2024-11-13 12:47:01,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 12:47:01,283 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2024-11-13 12:47:01,283 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 12:47:01,295 INFO L225 Difference]: With dead ends: 3010 [2024-11-13 12:47:01,295 INFO L226 Difference]: Without dead ends: 3010 [2024-11-13 12:47:01,295 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 12:47:01,296 INFO L432 NwaCegarLoop]: 977 mSDtfsCounter, 1409 mSDsluCounter, 728 mSDsCounter, 0 mSdLazyCounter, 1281 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1420 SdHoareTripleChecker+Valid, 1705 SdHoareTripleChecker+Invalid, 1290 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 1281 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2024-11-13 12:47:01,296 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1420 Valid, 1705 Invalid, 1290 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 1281 Invalid, 0 Unknown, 0 Unchecked, 4.7s Time] [2024-11-13 12:47:01,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3010 states. [2024-11-13 12:47:01,379 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3010 to 2224. [2024-11-13 12:47:01,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2224 states, 1511 states have (on average 1.9232296492389147) internal successors, (2906), 2210 states have internal predecessors, (2906), 17 states have call successors, (17), 3 states have call predecessors, (17), 2 states have return successors, (15), 11 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-13 12:47:01,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2224 states to 2224 states and 2938 transitions. [2024-11-13 12:47:01,393 INFO L78 Accepts]: Start accepts. Automaton has 2224 states and 2938 transitions. Word has length 6 [2024-11-13 12:47:01,393 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 12:47:01,393 INFO L471 AbstractCegarLoop]: Abstraction has 2224 states and 2938 transitions. [2024-11-13 12:47:01,393 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 12:47:01,393 INFO L276 IsEmpty]: Start isEmpty. Operand 2224 states and 2938 transitions. [2024-11-13 12:47:01,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-11-13 12:47:01,394 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 12:47:01,394 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2024-11-13 12:47:01,417 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b71100f-0ab2-467a-b5b1-1d0cc06159cd/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-13 12:47:01,595 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b71100f-0ab2-467a-b5b1-1d0cc06159cd/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 12:47:01,595 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr621REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 814 more)] === [2024-11-13 12:47:01,596 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 12:47:01,596 INFO L85 PathProgramCache]: Analyzing trace with hash 1956303672, now seen corresponding path program 1 times [2024-11-13 12:47:01,597 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 12:47:01,597 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1106960006] [2024-11-13 12:47:01,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:47:01,597 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 12:47:01,597 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b71100f-0ab2-467a-b5b1-1d0cc06159cd/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 12:47:01,600 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b71100f-0ab2-467a-b5b1-1d0cc06159cd/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 12:47:01,601 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b71100f-0ab2-467a-b5b1-1d0cc06159cd/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-13 12:47:01,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:47:01,763 INFO L255 TraceCheckSpWp]: Trace formula consists of 30 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-13 12:47:01,765 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 12:47:01,775 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 12:47:01,776 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 12:47:01,776 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 12:47:01,776 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1106960006] [2024-11-13 12:47:01,777 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1106960006] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 12:47:01,777 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 12:47:01,777 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 12:47:01,778 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2074288905] [2024-11-13 12:47:01,778 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 12:47:01,778 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 12:47:01,778 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 12:47:01,779 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 12:47:01,779 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 12:47:01,779 INFO L87 Difference]: Start difference. First operand 2224 states and 2938 transitions. Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 12:47:01,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 12:47:01,921 INFO L93 Difference]: Finished difference Result 3881 states and 4989 transitions. [2024-11-13 12:47:01,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 12:47:01,924 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2024-11-13 12:47:01,924 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 12:47:01,943 INFO L225 Difference]: With dead ends: 3881 [2024-11-13 12:47:01,943 INFO L226 Difference]: Without dead ends: 3881 [2024-11-13 12:47:01,943 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 12:47:01,945 INFO L432 NwaCegarLoop]: 1875 mSDtfsCounter, 1356 mSDsluCounter, 1600 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1367 SdHoareTripleChecker+Valid, 3475 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-13 12:47:01,945 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1367 Valid, 3475 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-13 12:47:01,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3881 states. [2024-11-13 12:47:02,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3881 to 2226. [2024-11-13 12:47:02,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2226 states, 1513 states have (on average 1.9213483146067416) internal successors, (2907), 2212 states have internal predecessors, (2907), 17 states have call successors, (17), 3 states have call predecessors, (17), 2 states have return successors, (15), 11 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-13 12:47:02,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2226 states to 2226 states and 2939 transitions. [2024-11-13 12:47:02,023 INFO L78 Accepts]: Start accepts. Automaton has 2226 states and 2939 transitions. Word has length 6 [2024-11-13 12:47:02,023 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 12:47:02,023 INFO L471 AbstractCegarLoop]: Abstraction has 2226 states and 2939 transitions. [2024-11-13 12:47:02,023 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 12:47:02,023 INFO L276 IsEmpty]: Start isEmpty. Operand 2226 states and 2939 transitions. [2024-11-13 12:47:02,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-11-13 12:47:02,024 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 12:47:02,024 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 12:47:02,047 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b71100f-0ab2-467a-b5b1-1d0cc06159cd/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-13 12:47:02,224 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b71100f-0ab2-467a-b5b1-1d0cc06159cd/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 12:47:02,225 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 814 more)] === [2024-11-13 12:47:02,225 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 12:47:02,225 INFO L85 PathProgramCache]: Analyzing trace with hash -408167591, now seen corresponding path program 1 times [2024-11-13 12:47:02,226 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 12:47:02,226 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1862206417] [2024-11-13 12:47:02,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:47:02,226 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 12:47:02,226 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b71100f-0ab2-467a-b5b1-1d0cc06159cd/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 12:47:02,229 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b71100f-0ab2-467a-b5b1-1d0cc06159cd/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 12:47:02,231 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b71100f-0ab2-467a-b5b1-1d0cc06159cd/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-13 12:47:02,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:47:02,473 INFO L255 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-13 12:47:02,475 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 12:47:02,488 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 12:47:02,488 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 12:47:02,488 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 12:47:02,489 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1862206417] [2024-11-13 12:47:02,489 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1862206417] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 12:47:02,489 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 12:47:02,489 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 12:47:02,489 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1553806406] [2024-11-13 12:47:02,489 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 12:47:02,490 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 12:47:02,490 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 12:47:02,490 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 12:47:02,490 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 12:47:02,490 INFO L87 Difference]: Start difference. First operand 2226 states and 2939 transitions. Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 12:47:02,546 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 12:47:02,546 INFO L93 Difference]: Finished difference Result 2166 states and 2853 transitions. [2024-11-13 12:47:02,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 12:47:02,547 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2024-11-13 12:47:02,547 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 12:47:02,556 INFO L225 Difference]: With dead ends: 2166 [2024-11-13 12:47:02,556 INFO L226 Difference]: Without dead ends: 2166 [2024-11-13 12:47:02,556 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 12:47:02,557 INFO L432 NwaCegarLoop]: 1556 mSDtfsCounter, 71 mSDsluCounter, 1493 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 3049 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-13 12:47:02,557 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [71 Valid, 3049 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 12:47:02,562 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2166 states. [2024-11-13 12:47:02,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2166 to 2166. [2024-11-13 12:47:02,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2166 states, 1477 states have (on average 1.9099526066350712) internal successors, (2821), 2152 states have internal predecessors, (2821), 17 states have call successors, (17), 3 states have call predecessors, (17), 2 states have return successors, (15), 11 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-13 12:47:02,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2166 states to 2166 states and 2853 transitions. [2024-11-13 12:47:02,609 INFO L78 Accepts]: Start accepts. Automaton has 2166 states and 2853 transitions. Word has length 11 [2024-11-13 12:47:02,609 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 12:47:02,609 INFO L471 AbstractCegarLoop]: Abstraction has 2166 states and 2853 transitions. [2024-11-13 12:47:02,609 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 12:47:02,609 INFO L276 IsEmpty]: Start isEmpty. Operand 2166 states and 2853 transitions. [2024-11-13 12:47:02,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-11-13 12:47:02,610 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 12:47:02,610 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 12:47:02,634 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b71100f-0ab2-467a-b5b1-1d0cc06159cd/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-13 12:47:02,810 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b71100f-0ab2-467a-b5b1-1d0cc06159cd/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 12:47:02,811 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr28REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 814 more)] === [2024-11-13 12:47:02,811 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 12:47:02,812 INFO L85 PathProgramCache]: Analyzing trace with hash -1407036303, now seen corresponding path program 1 times [2024-11-13 12:47:02,812 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 12:47:02,812 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1085099863] [2024-11-13 12:47:02,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:47:02,812 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 12:47:02,812 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b71100f-0ab2-467a-b5b1-1d0cc06159cd/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 12:47:02,814 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b71100f-0ab2-467a-b5b1-1d0cc06159cd/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 12:47:02,815 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b71100f-0ab2-467a-b5b1-1d0cc06159cd/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-13 12:47:03,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:47:03,008 INFO L255 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-13 12:47:03,010 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 12:47:03,038 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 12:47:03,038 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 12:47:03,038 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 12:47:03,038 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1085099863] [2024-11-13 12:47:03,038 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1085099863] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 12:47:03,038 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 12:47:03,038 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-13 12:47:03,039 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1599105247] [2024-11-13 12:47:03,039 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 12:47:03,039 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 12:47:03,039 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 12:47:03,039 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 12:47:03,039 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 12:47:03,040 INFO L87 Difference]: Start difference. First operand 2166 states and 2853 transitions. Second operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 12:47:03,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 12:47:03,161 INFO L93 Difference]: Finished difference Result 2136 states and 2795 transitions. [2024-11-13 12:47:03,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-13 12:47:03,161 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 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 13 [2024-11-13 12:47:03,161 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 12:47:03,169 INFO L225 Difference]: With dead ends: 2136 [2024-11-13 12:47:03,169 INFO L226 Difference]: Without dead ends: 2136 [2024-11-13 12:47:03,169 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-13 12:47:03,170 INFO L432 NwaCegarLoop]: 1511 mSDtfsCounter, 48 mSDsluCounter, 2996 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 4507 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-13 12:47:03,170 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 4507 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-13 12:47:03,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2136 states. [2024-11-13 12:47:03,221 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2136 to 2136. [2024-11-13 12:47:03,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2136 states, 1461 states have (on average 1.891170431211499) internal successors, (2763), 2122 states have internal predecessors, (2763), 17 states have call successors, (17), 3 states have call predecessors, (17), 2 states have return successors, (15), 11 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-13 12:47:03,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2136 states to 2136 states and 2795 transitions. [2024-11-13 12:47:03,236 INFO L78 Accepts]: Start accepts. Automaton has 2136 states and 2795 transitions. Word has length 13 [2024-11-13 12:47:03,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 12:47:03,236 INFO L471 AbstractCegarLoop]: Abstraction has 2136 states and 2795 transitions. [2024-11-13 12:47:03,236 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 12:47:03,236 INFO L276 IsEmpty]: Start isEmpty. Operand 2136 states and 2795 transitions. [2024-11-13 12:47:03,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2024-11-13 12:47:03,237 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 12:47:03,237 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 12:47:03,263 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b71100f-0ab2-467a-b5b1-1d0cc06159cd/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-13 12:47:03,437 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b71100f-0ab2-467a-b5b1-1d0cc06159cd/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 12:47:03,437 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr42REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 814 more)] === [2024-11-13 12:47:03,438 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 12:47:03,438 INFO L85 PathProgramCache]: Analyzing trace with hash 1384727071, now seen corresponding path program 1 times [2024-11-13 12:47:03,438 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 12:47:03,438 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [865557817] [2024-11-13 12:47:03,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:47:03,438 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 12:47:03,439 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b71100f-0ab2-467a-b5b1-1d0cc06159cd/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 12:47:03,440 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b71100f-0ab2-467a-b5b1-1d0cc06159cd/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 12:47:03,441 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b71100f-0ab2-467a-b5b1-1d0cc06159cd/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-13 12:47:03,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:47:03,643 INFO L255 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-13 12:47:03,646 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 12:47:03,652 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 [2024-11-13 12:47:03,756 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 12:47:03,756 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 12:47:03,757 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 12:47:03,757 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [865557817] [2024-11-13 12:47:03,757 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [865557817] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 12:47:03,757 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 12:47:03,757 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 12:47:03,757 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1852240448] [2024-11-13 12:47:03,757 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 12:47:03,757 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 12:47:03,758 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 12:47:03,758 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 12:47:03,758 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 12:47:03,758 INFO L87 Difference]: Start difference. First operand 2136 states and 2795 transitions. Second operand has 4 states, 3 states have (on average 9.0) internal successors, (27), 4 states have internal predecessors, (27), 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) [2024-11-13 12:47:08,304 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 12:47:08,304 INFO L93 Difference]: Finished difference Result 2140 states and 2795 transitions. [2024-11-13 12:47:08,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 12:47:08,305 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 9.0) internal successors, (27), 4 states have internal predecessors, (27), 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 27 [2024-11-13 12:47:08,305 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 12:47:08,313 INFO L225 Difference]: With dead ends: 2140 [2024-11-13 12:47:08,313 INFO L226 Difference]: Without dead ends: 2140 [2024-11-13 12:47:08,313 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-13 12:47:08,314 INFO L432 NwaCegarLoop]: 879 mSDtfsCounter, 1200 mSDsluCounter, 827 mSDsCounter, 0 mSdLazyCounter, 1647 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1211 SdHoareTripleChecker+Valid, 1706 SdHoareTripleChecker+Invalid, 1658 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 1647 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2024-11-13 12:47:08,314 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1211 Valid, 1706 Invalid, 1658 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 1647 Invalid, 0 Unknown, 0 Unchecked, 4.5s Time] [2024-11-13 12:47:08,318 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2140 states. [2024-11-13 12:47:08,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2140 to 2132. [2024-11-13 12:47:08,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2132 states, 1461 states have (on average 1.8856947296372348) internal successors, (2755), 2118 states have internal predecessors, (2755), 17 states have call successors, (17), 3 states have call predecessors, (17), 2 states have return successors, (15), 11 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-13 12:47:08,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2132 states to 2132 states and 2787 transitions. [2024-11-13 12:47:08,361 INFO L78 Accepts]: Start accepts. Automaton has 2132 states and 2787 transitions. Word has length 27 [2024-11-13 12:47:08,362 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 12:47:08,362 INFO L471 AbstractCegarLoop]: Abstraction has 2132 states and 2787 transitions. [2024-11-13 12:47:08,362 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 9.0) internal successors, (27), 4 states have internal predecessors, (27), 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) [2024-11-13 12:47:08,362 INFO L276 IsEmpty]: Start isEmpty. Operand 2132 states and 2787 transitions. [2024-11-13 12:47:08,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2024-11-13 12:47:08,363 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 12:47:08,363 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 12:47:08,388 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b71100f-0ab2-467a-b5b1-1d0cc06159cd/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-11-13 12:47:08,568 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b71100f-0ab2-467a-b5b1-1d0cc06159cd/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 12:47:08,568 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr43REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 814 more)] === [2024-11-13 12:47:08,568 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 12:47:08,568 INFO L85 PathProgramCache]: Analyzing trace with hash 1384727072, now seen corresponding path program 1 times [2024-11-13 12:47:08,569 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 12:47:08,569 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1183216327] [2024-11-13 12:47:08,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:47:08,569 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 12:47:08,569 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b71100f-0ab2-467a-b5b1-1d0cc06159cd/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 12:47:08,570 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b71100f-0ab2-467a-b5b1-1d0cc06159cd/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 12:47:08,572 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b71100f-0ab2-467a-b5b1-1d0cc06159cd/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-13 12:47:08,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:47:08,797 INFO L255 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-13 12:47:08,799 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 12:47:08,814 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 [2024-11-13 12:47:09,093 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 12:47:09,094 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 12:47:09,094 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 12:47:09,094 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1183216327] [2024-11-13 12:47:09,094 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1183216327] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 12:47:09,094 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 12:47:09,094 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 12:47:09,094 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [251828367] [2024-11-13 12:47:09,094 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 12:47:09,095 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 12:47:09,095 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 12:47:09,095 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 12:47:09,095 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 12:47:09,095 INFO L87 Difference]: Start difference. First operand 2132 states and 2787 transitions. Second operand has 4 states, 3 states have (on average 9.0) internal successors, (27), 4 states have internal predecessors, (27), 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) [2024-11-13 12:47:15,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 12:47:15,686 INFO L93 Difference]: Finished difference Result 2528 states and 3079 transitions. [2024-11-13 12:47:15,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 12:47:15,687 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 9.0) internal successors, (27), 4 states have internal predecessors, (27), 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 27 [2024-11-13 12:47:15,687 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 12:47:15,692 INFO L225 Difference]: With dead ends: 2528 [2024-11-13 12:47:15,692 INFO L226 Difference]: Without dead ends: 2528 [2024-11-13 12:47:15,692 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-13 12:47:15,693 INFO L432 NwaCegarLoop]: 1241 mSDtfsCounter, 700 mSDsluCounter, 1443 mSDsCounter, 0 mSdLazyCounter, 1768 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 705 SdHoareTripleChecker+Valid, 2684 SdHoareTripleChecker+Invalid, 1771 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1768 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.5s IncrementalHoareTripleChecker+Time [2024-11-13 12:47:15,693 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [705 Valid, 2684 Invalid, 1771 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1768 Invalid, 0 Unknown, 0 Unchecked, 6.5s Time] [2024-11-13 12:47:15,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2528 states. [2024-11-13 12:47:15,733 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2528 to 2128. [2024-11-13 12:47:15,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2128 states, 1461 states have (on average 1.8802190280629705) internal successors, (2747), 2114 states have internal predecessors, (2747), 17 states have call successors, (17), 3 states have call predecessors, (17), 2 states have return successors, (15), 11 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-13 12:47:15,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2128 states to 2128 states and 2779 transitions. [2024-11-13 12:47:15,742 INFO L78 Accepts]: Start accepts. Automaton has 2128 states and 2779 transitions. Word has length 27 [2024-11-13 12:47:15,743 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 12:47:15,743 INFO L471 AbstractCegarLoop]: Abstraction has 2128 states and 2779 transitions. [2024-11-13 12:47:15,743 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 9.0) internal successors, (27), 4 states have internal predecessors, (27), 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) [2024-11-13 12:47:15,743 INFO L276 IsEmpty]: Start isEmpty. Operand 2128 states and 2779 transitions. [2024-11-13 12:47:15,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2024-11-13 12:47:15,744 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 12:47:15,744 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 12:47:15,771 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b71100f-0ab2-467a-b5b1-1d0cc06159cd/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-11-13 12:47:15,945 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b71100f-0ab2-467a-b5b1-1d0cc06159cd/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 12:47:15,945 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr107REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 814 more)] === [2024-11-13 12:47:15,950 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 12:47:15,950 INFO L85 PathProgramCache]: Analyzing trace with hash -1764077961, now seen corresponding path program 1 times [2024-11-13 12:47:15,950 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 12:47:15,950 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [636879136] [2024-11-13 12:47:15,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:47:15,951 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 12:47:15,951 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b71100f-0ab2-467a-b5b1-1d0cc06159cd/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 12:47:15,953 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b71100f-0ab2-467a-b5b1-1d0cc06159cd/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 12:47:15,956 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b71100f-0ab2-467a-b5b1-1d0cc06159cd/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-13 12:47:16,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:47:16,247 INFO L255 TraceCheckSpWp]: Trace formula consists of 179 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-13 12:47:16,250 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 12:47:16,635 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 12:47:16,635 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 12:47:16,635 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 12:47:16,635 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [636879136] [2024-11-13 12:47:16,635 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [636879136] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 12:47:16,635 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 12:47:16,636 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 12:47:16,636 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1305734858] [2024-11-13 12:47:16,636 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 12:47:16,636 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 12:47:16,636 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 12:47:16,637 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 12:47:16,637 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 12:47:16,637 INFO L87 Difference]: Start difference. First operand 2128 states and 2779 transitions. Second operand has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 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) [2024-11-13 12:47:16,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 12:47:16,928 INFO L93 Difference]: Finished difference Result 2351 states and 3035 transitions. [2024-11-13 12:47:16,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 12:47:16,929 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 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 43 [2024-11-13 12:47:16,930 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 12:47:16,938 INFO L225 Difference]: With dead ends: 2351 [2024-11-13 12:47:16,939 INFO L226 Difference]: Without dead ends: 2351 [2024-11-13 12:47:16,939 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 12:47:16,940 INFO L432 NwaCegarLoop]: 1596 mSDtfsCounter, 189 mSDsluCounter, 1459 mSDsCounter, 0 mSdLazyCounter, 102 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 189 SdHoareTripleChecker+Valid, 3055 SdHoareTripleChecker+Invalid, 104 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 102 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-13 12:47:16,940 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [189 Valid, 3055 Invalid, 104 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 102 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-13 12:47:16,944 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2351 states. [2024-11-13 12:47:16,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2351 to 2181. [2024-11-13 12:47:16,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2181 states, 1514 states have (on average 1.8520475561426684) internal successors, (2804), 2167 states have internal predecessors, (2804), 17 states have call successors, (17), 3 states have call predecessors, (17), 2 states have return successors, (15), 11 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-13 12:47:16,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2181 states to 2181 states and 2836 transitions. [2024-11-13 12:47:16,984 INFO L78 Accepts]: Start accepts. Automaton has 2181 states and 2836 transitions. Word has length 43 [2024-11-13 12:47:16,984 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 12:47:16,985 INFO L471 AbstractCegarLoop]: Abstraction has 2181 states and 2836 transitions. [2024-11-13 12:47:16,985 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 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) [2024-11-13 12:47:16,985 INFO L276 IsEmpty]: Start isEmpty. Operand 2181 states and 2836 transitions. [2024-11-13 12:47:16,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2024-11-13 12:47:16,988 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 12:47:16,988 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 12:47:17,017 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b71100f-0ab2-467a-b5b1-1d0cc06159cd/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2024-11-13 12:47:17,188 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b71100f-0ab2-467a-b5b1-1d0cc06159cd/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 12:47:17,189 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr61REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 814 more)] === [2024-11-13 12:47:17,189 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 12:47:17,189 INFO L85 PathProgramCache]: Analyzing trace with hash -534161226, now seen corresponding path program 1 times [2024-11-13 12:47:17,190 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 12:47:17,190 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1584498209] [2024-11-13 12:47:17,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:47:17,190 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 12:47:17,190 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b71100f-0ab2-467a-b5b1-1d0cc06159cd/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 12:47:17,195 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b71100f-0ab2-467a-b5b1-1d0cc06159cd/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 12:47:17,197 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b71100f-0ab2-467a-b5b1-1d0cc06159cd/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-13 12:47:17,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:47:17,537 INFO L255 TraceCheckSpWp]: Trace formula consists of 214 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-13 12:47:17,540 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 12:47:17,613 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 12:47:17,613 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 12:47:17,613 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 12:47:17,613 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1584498209] [2024-11-13 12:47:17,613 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1584498209] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 12:47:17,614 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 12:47:17,614 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-13 12:47:17,614 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [10614974] [2024-11-13 12:47:17,614 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 12:47:17,614 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 12:47:17,615 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 12:47:17,615 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 12:47:17,615 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 12:47:17,615 INFO L87 Difference]: Start difference. First operand 2181 states and 2836 transitions. Second operand has 4 states, 4 states have (on average 11.5) internal successors, (46), 4 states have internal predecessors, (46), 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) [2024-11-13 12:47:17,744 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 12:47:17,744 INFO L93 Difference]: Finished difference Result 2163 states and 2806 transitions. [2024-11-13 12:47:17,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-13 12:47:17,745 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.5) internal successors, (46), 4 states have internal predecessors, (46), 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 46 [2024-11-13 12:47:17,745 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 12:47:17,753 INFO L225 Difference]: With dead ends: 2163 [2024-11-13 12:47:17,753 INFO L226 Difference]: Without dead ends: 2163 [2024-11-13 12:47:17,753 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-13 12:47:17,754 INFO L432 NwaCegarLoop]: 1505 mSDtfsCounter, 21 mSDsluCounter, 2979 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 4484 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-13 12:47:17,754 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 4484 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-13 12:47:17,758 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2163 states. [2024-11-13 12:47:17,777 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2163 to 2163. [2024-11-13 12:47:17,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2163 states, 1496 states have (on average 1.8542780748663101) internal successors, (2774), 2149 states have internal predecessors, (2774), 17 states have call successors, (17), 3 states have call predecessors, (17), 2 states have return successors, (15), 11 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-13 12:47:17,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2163 states to 2163 states and 2806 transitions. [2024-11-13 12:47:17,786 INFO L78 Accepts]: Start accepts. Automaton has 2163 states and 2806 transitions. Word has length 46 [2024-11-13 12:47:17,786 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 12:47:17,786 INFO L471 AbstractCegarLoop]: Abstraction has 2163 states and 2806 transitions. [2024-11-13 12:47:17,786 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.5) internal successors, (46), 4 states have internal predecessors, (46), 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) [2024-11-13 12:47:17,787 INFO L276 IsEmpty]: Start isEmpty. Operand 2163 states and 2806 transitions. [2024-11-13 12:47:17,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2024-11-13 12:47:17,788 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 12:47:17,788 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 12:47:17,817 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b71100f-0ab2-467a-b5b1-1d0cc06159cd/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2024-11-13 12:47:17,988 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b71100f-0ab2-467a-b5b1-1d0cc06159cd/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 12:47:17,988 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr61REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 814 more)] === [2024-11-13 12:47:17,989 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 12:47:17,989 INFO L85 PathProgramCache]: Analyzing trace with hash -1240154902, now seen corresponding path program 1 times [2024-11-13 12:47:17,989 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 12:47:17,990 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2050496969] [2024-11-13 12:47:17,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:47:17,990 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 12:47:17,990 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b71100f-0ab2-467a-b5b1-1d0cc06159cd/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 12:47:17,992 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b71100f-0ab2-467a-b5b1-1d0cc06159cd/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 12:47:17,995 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b71100f-0ab2-467a-b5b1-1d0cc06159cd/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-11-13 12:47:18,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:47:18,330 INFO L255 TraceCheckSpWp]: Trace formula consists of 238 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-13 12:47:18,333 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 12:47:18,341 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 [2024-11-13 12:47:19,224 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-13 12:47:19,227 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 9 [2024-11-13 12:47:19,254 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2024-11-13 12:47:19,254 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13 [2024-11-13 12:47:19,265 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 12:47:19,266 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 12:47:19,267 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 12:47:19,267 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2050496969] [2024-11-13 12:47:19,267 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2050496969] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 12:47:19,267 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 12:47:19,267 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-13 12:47:19,267 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [775255883] [2024-11-13 12:47:19,267 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 12:47:19,268 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-13 12:47:19,268 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 12:47:19,268 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-13 12:47:19,268 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-13 12:47:19,269 INFO L87 Difference]: Start difference. First operand 2163 states and 2806 transitions. Second operand has 5 states, 4 states have (on average 13.5) internal successors, (54), 5 states have internal predecessors, (54), 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) [2024-11-13 12:47:25,988 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 12:47:25,988 INFO L93 Difference]: Finished difference Result 2079 states and 2686 transitions. [2024-11-13 12:47:25,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-13 12:47:25,989 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 13.5) internal successors, (54), 5 states have internal predecessors, (54), 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 54 [2024-11-13 12:47:25,989 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 12:47:25,996 INFO L225 Difference]: With dead ends: 2079 [2024-11-13 12:47:25,996 INFO L226 Difference]: Without dead ends: 2079 [2024-11-13 12:47:25,996 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2024-11-13 12:47:25,997 INFO L432 NwaCegarLoop]: 637 mSDtfsCounter, 1162 mSDsluCounter, 659 mSDsCounter, 0 mSdLazyCounter, 2034 mSolverCounterSat, 92 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1173 SdHoareTripleChecker+Valid, 1296 SdHoareTripleChecker+Invalid, 2126 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 92 IncrementalHoareTripleChecker+Valid, 2034 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.6s IncrementalHoareTripleChecker+Time [2024-11-13 12:47:25,997 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1173 Valid, 1296 Invalid, 2126 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [92 Valid, 2034 Invalid, 0 Unknown, 0 Unchecked, 6.6s Time] [2024-11-13 12:47:26,001 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2079 states. [2024-11-13 12:47:26,037 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2079 to 1729. [2024-11-13 12:47:26,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1729 states, 1146 states have (on average 1.743455497382199) internal successors, (1998), 1715 states have internal predecessors, (1998), 17 states have call successors, (17), 3 states have call predecessors, (17), 2 states have return successors, (15), 11 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-13 12:47:26,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1729 states to 1729 states and 2030 transitions. [2024-11-13 12:47:26,045 INFO L78 Accepts]: Start accepts. Automaton has 1729 states and 2030 transitions. Word has length 54 [2024-11-13 12:47:26,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 12:47:26,046 INFO L471 AbstractCegarLoop]: Abstraction has 1729 states and 2030 transitions. [2024-11-13 12:47:26,046 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 13.5) internal successors, (54), 5 states have internal predecessors, (54), 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) [2024-11-13 12:47:26,046 INFO L276 IsEmpty]: Start isEmpty. Operand 1729 states and 2030 transitions. [2024-11-13 12:47:26,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2024-11-13 12:47:26,051 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 12:47:26,051 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 12:47:26,076 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b71100f-0ab2-467a-b5b1-1d0cc06159cd/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2024-11-13 12:47:26,251 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b71100f-0ab2-467a-b5b1-1d0cc06159cd/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 12:47:26,252 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr66REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 814 more)] === [2024-11-13 12:47:26,252 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 12:47:26,252 INFO L85 PathProgramCache]: Analyzing trace with hash 1658588182, now seen corresponding path program 1 times [2024-11-13 12:47:26,253 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 12:47:26,253 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [913051399] [2024-11-13 12:47:26,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:47:26,253 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 12:47:26,253 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b71100f-0ab2-467a-b5b1-1d0cc06159cd/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 12:47:26,255 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b71100f-0ab2-467a-b5b1-1d0cc06159cd/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 12:47:26,257 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b71100f-0ab2-467a-b5b1-1d0cc06159cd/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-11-13 12:47:26,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:47:26,573 INFO L255 TraceCheckSpWp]: Trace formula consists of 265 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-13 12:47:26,577 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 12:47:26,585 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 [2024-11-13 12:47:26,602 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-13 12:47:26,640 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2024-11-13 12:47:26,655 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 12:47:26,655 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 12:47:26,656 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 12:47:26,656 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [913051399] [2024-11-13 12:47:26,656 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [913051399] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 12:47:26,656 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 12:47:26,656 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-13 12:47:26,656 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1344900397] [2024-11-13 12:47:26,656 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 12:47:26,657 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-13 12:47:26,657 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 12:47:26,657 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-13 12:47:26,657 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-13 12:47:26,658 INFO L87 Difference]: Start difference. First operand 1729 states and 2030 transitions. Second operand has 5 states, 4 states have (on average 14.75) internal successors, (59), 5 states have internal predecessors, (59), 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) [2024-11-13 12:47:31,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 12:47:31,672 INFO L93 Difference]: Finished difference Result 1728 states and 2028 transitions. [2024-11-13 12:47:31,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-13 12:47:31,673 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 14.75) internal successors, (59), 5 states have internal predecessors, (59), 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 59 [2024-11-13 12:47:31,673 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 12:47:31,678 INFO L225 Difference]: With dead ends: 1728 [2024-11-13 12:47:31,678 INFO L226 Difference]: Without dead ends: 1728 [2024-11-13 12:47:31,678 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-13 12:47:31,679 INFO L432 NwaCegarLoop]: 1432 mSDtfsCounter, 2 mSDsluCounter, 2271 mSDsCounter, 0 mSdLazyCounter, 2032 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 3703 SdHoareTripleChecker+Invalid, 2033 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2032 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2024-11-13 12:47:31,679 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 3703 Invalid, 2033 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 2032 Invalid, 0 Unknown, 0 Unchecked, 4.9s Time] [2024-11-13 12:47:31,682 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1728 states. [2024-11-13 12:47:31,696 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1728 to 1728. [2024-11-13 12:47:31,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1728 states, 1146 states have (on average 1.7417102966841187) internal successors, (1996), 1714 states have internal predecessors, (1996), 17 states have call successors, (17), 3 states have call predecessors, (17), 2 states have return successors, (15), 11 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-13 12:47:31,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1728 states to 1728 states and 2028 transitions. [2024-11-13 12:47:31,701 INFO L78 Accepts]: Start accepts. Automaton has 1728 states and 2028 transitions. Word has length 59 [2024-11-13 12:47:31,701 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 12:47:31,702 INFO L471 AbstractCegarLoop]: Abstraction has 1728 states and 2028 transitions. [2024-11-13 12:47:31,702 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 14.75) internal successors, (59), 5 states have internal predecessors, (59), 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) [2024-11-13 12:47:31,702 INFO L276 IsEmpty]: Start isEmpty. Operand 1728 states and 2028 transitions. [2024-11-13 12:47:31,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2024-11-13 12:47:31,702 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 12:47:31,703 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 12:47:31,734 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b71100f-0ab2-467a-b5b1-1d0cc06159cd/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2024-11-13 12:47:31,903 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b71100f-0ab2-467a-b5b1-1d0cc06159cd/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 12:47:31,903 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr67REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 814 more)] === [2024-11-13 12:47:31,903 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 12:47:31,904 INFO L85 PathProgramCache]: Analyzing trace with hash 1658588183, now seen corresponding path program 1 times [2024-11-13 12:47:31,904 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 12:47:31,904 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [47950018] [2024-11-13 12:47:31,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:47:31,904 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 12:47:31,904 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b71100f-0ab2-467a-b5b1-1d0cc06159cd/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 12:47:31,906 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b71100f-0ab2-467a-b5b1-1d0cc06159cd/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 12:47:31,908 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b71100f-0ab2-467a-b5b1-1d0cc06159cd/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-11-13 12:47:32,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:47:32,241 INFO L255 TraceCheckSpWp]: Trace formula consists of 265 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-13 12:47:32,245 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 12:47:32,263 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 [2024-11-13 12:47:32,292 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2024-11-13 12:47:32,312 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-13 12:47:32,409 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2024-11-13 12:47:32,437 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 12:47:32,437 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 12:47:32,437 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 12:47:32,437 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [47950018] [2024-11-13 12:47:32,437 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [47950018] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 12:47:32,437 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 12:47:32,437 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-13 12:47:32,438 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1398021325] [2024-11-13 12:47:32,438 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 12:47:32,438 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-13 12:47:32,438 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 12:47:32,438 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-13 12:47:32,439 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-13 12:47:32,439 INFO L87 Difference]: Start difference. First operand 1728 states and 2028 transitions. Second operand has 5 states, 4 states have (on average 14.75) internal successors, (59), 5 states have internal predecessors, (59), 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) [2024-11-13 12:47:38,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 12:47:38,525 INFO L93 Difference]: Finished difference Result 1727 states and 2026 transitions. [2024-11-13 12:47:38,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-13 12:47:38,526 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 14.75) internal successors, (59), 5 states have internal predecessors, (59), 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 59 [2024-11-13 12:47:38,526 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 12:47:38,531 INFO L225 Difference]: With dead ends: 1727 [2024-11-13 12:47:38,531 INFO L226 Difference]: Without dead ends: 1727 [2024-11-13 12:47:38,531 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-13 12:47:38,532 INFO L432 NwaCegarLoop]: 1432 mSDtfsCounter, 1 mSDsluCounter, 2306 mSDsCounter, 0 mSdLazyCounter, 1994 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 3738 SdHoareTripleChecker+Invalid, 1995 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1994 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.0s IncrementalHoareTripleChecker+Time [2024-11-13 12:47:38,532 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 3738 Invalid, 1995 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1994 Invalid, 0 Unknown, 0 Unchecked, 6.0s Time] [2024-11-13 12:47:38,534 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1727 states. [2024-11-13 12:47:38,553 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1727 to 1727. [2024-11-13 12:47:38,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1727 states, 1144 states have (on average 1.743006993006993) internal successors, (1994), 1713 states have internal predecessors, (1994), 17 states have call successors, (17), 3 states have call predecessors, (17), 2 states have return successors, (15), 11 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-13 12:47:38,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1727 states to 1727 states and 2026 transitions. [2024-11-13 12:47:38,568 INFO L78 Accepts]: Start accepts. Automaton has 1727 states and 2026 transitions. Word has length 59 [2024-11-13 12:47:38,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 12:47:38,568 INFO L471 AbstractCegarLoop]: Abstraction has 1727 states and 2026 transitions. [2024-11-13 12:47:38,571 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 14.75) internal successors, (59), 5 states have internal predecessors, (59), 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) [2024-11-13 12:47:38,571 INFO L276 IsEmpty]: Start isEmpty. Operand 1727 states and 2026 transitions. [2024-11-13 12:47:38,572 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-11-13 12:47:38,572 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 12:47:38,572 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 12:47:38,601 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b71100f-0ab2-467a-b5b1-1d0cc06159cd/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2024-11-13 12:47:38,773 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b71100f-0ab2-467a-b5b1-1d0cc06159cd/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 12:47:38,773 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr70REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 814 more)] === [2024-11-13 12:47:38,773 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 12:47:38,774 INFO L85 PathProgramCache]: Analyzing trace with hash -1590083619, now seen corresponding path program 1 times [2024-11-13 12:47:38,774 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 12:47:38,774 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1875258353] [2024-11-13 12:47:38,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:47:38,774 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 12:47:38,774 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b71100f-0ab2-467a-b5b1-1d0cc06159cd/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 12:47:38,776 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b71100f-0ab2-467a-b5b1-1d0cc06159cd/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 12:47:38,777 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b71100f-0ab2-467a-b5b1-1d0cc06159cd/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2024-11-13 12:47:39,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:47:39,109 INFO L255 TraceCheckSpWp]: Trace formula consists of 291 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-13 12:47:39,113 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 12:47:39,121 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-13 12:47:39,260 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2024-11-13 12:47:39,285 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 12:47:39,285 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 12:47:39,285 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 12:47:39,285 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1875258353] [2024-11-13 12:47:39,285 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1875258353] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 12:47:39,285 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 12:47:39,286 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-13 12:47:39,286 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [708587147] [2024-11-13 12:47:39,286 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 12:47:39,287 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-13 12:47:39,288 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 12:47:39,289 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-13 12:47:39,290 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-13 12:47:39,290 INFO L87 Difference]: Start difference. First operand 1727 states and 2026 transitions. Second operand has 7 states, 5 states have (on average 13.0) internal successors, (65), 6 states have internal predecessors, (65), 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) [2024-11-13 12:47:45,180 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 12:47:45,180 INFO L93 Difference]: Finished difference Result 1745 states and 2057 transitions. [2024-11-13 12:47:45,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-13 12:47:45,181 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 5 states have (on average 13.0) internal successors, (65), 6 states have internal predecessors, (65), 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 67 [2024-11-13 12:47:45,181 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 12:47:45,185 INFO L225 Difference]: With dead ends: 1745 [2024-11-13 12:47:45,185 INFO L226 Difference]: Without dead ends: 1745 [2024-11-13 12:47:45,186 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2024-11-13 12:47:45,186 INFO L432 NwaCegarLoop]: 1414 mSDtfsCounter, 13 mSDsluCounter, 3776 mSDsCounter, 0 mSdLazyCounter, 1982 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 5190 SdHoareTripleChecker+Invalid, 1995 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 1982 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2024-11-13 12:47:45,186 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 5190 Invalid, 1995 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 1982 Invalid, 0 Unknown, 0 Unchecked, 5.7s Time] [2024-11-13 12:47:45,189 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1745 states. [2024-11-13 12:47:45,210 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1745 to 1736. [2024-11-13 12:47:45,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1736 states, 1152 states have (on average 1.7404513888888888) internal successors, (2005), 1720 states have internal predecessors, (2005), 17 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (25), 13 states have call predecessors, (25), 15 states have call successors, (25) [2024-11-13 12:47:45,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1736 states to 1736 states and 2047 transitions. [2024-11-13 12:47:45,216 INFO L78 Accepts]: Start accepts. Automaton has 1736 states and 2047 transitions. Word has length 67 [2024-11-13 12:47:45,217 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 12:47:45,217 INFO L471 AbstractCegarLoop]: Abstraction has 1736 states and 2047 transitions. [2024-11-13 12:47:45,217 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 5 states have (on average 13.0) internal successors, (65), 6 states have internal predecessors, (65), 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) [2024-11-13 12:47:45,217 INFO L276 IsEmpty]: Start isEmpty. Operand 1736 states and 2047 transitions. [2024-11-13 12:47:45,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-11-13 12:47:45,218 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 12:47:45,218 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 12:47:45,246 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b71100f-0ab2-467a-b5b1-1d0cc06159cd/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2024-11-13 12:47:45,419 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b71100f-0ab2-467a-b5b1-1d0cc06159cd/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 12:47:45,419 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr71REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 814 more)] === [2024-11-13 12:47:45,419 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 12:47:45,419 INFO L85 PathProgramCache]: Analyzing trace with hash -1590083618, now seen corresponding path program 1 times [2024-11-13 12:47:45,420 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 12:47:45,420 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [600984290] [2024-11-13 12:47:45,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:47:45,420 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 12:47:45,420 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b71100f-0ab2-467a-b5b1-1d0cc06159cd/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 12:47:45,422 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b71100f-0ab2-467a-b5b1-1d0cc06159cd/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 12:47:45,424 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b71100f-0ab2-467a-b5b1-1d0cc06159cd/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2024-11-13 12:47:45,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:47:45,753 INFO L255 TraceCheckSpWp]: Trace formula consists of 291 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-13 12:47:45,755 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 12:47:45,779 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 12:47:45,779 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 12:47:45,779 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 12:47:45,779 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [600984290] [2024-11-13 12:47:45,779 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [600984290] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 12:47:45,779 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 12:47:45,780 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-13 12:47:45,780 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1044999527] [2024-11-13 12:47:45,780 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 12:47:45,780 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 12:47:45,780 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 12:47:45,781 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 12:47:45,781 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 12:47:45,781 INFO L87 Difference]: Start difference. First operand 1736 states and 2047 transitions. Second operand has 4 states, 4 states have (on average 16.25) internal successors, (65), 4 states have internal predecessors, (65), 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) [2024-11-13 12:47:45,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 12:47:45,879 INFO L93 Difference]: Finished difference Result 1730 states and 2031 transitions. [2024-11-13 12:47:45,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 12:47:45,879 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.25) internal successors, (65), 4 states have internal predecessors, (65), 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 67 [2024-11-13 12:47:45,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 12:47:45,885 INFO L225 Difference]: With dead ends: 1730 [2024-11-13 12:47:45,885 INFO L226 Difference]: Without dead ends: 1730 [2024-11-13 12:47:45,885 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 12:47:45,886 INFO L432 NwaCegarLoop]: 1431 mSDtfsCounter, 0 mSDsluCounter, 2854 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 4285 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-13 12:47:45,886 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 4285 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-13 12:47:45,889 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1730 states. [2024-11-13 12:47:45,911 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1730 to 1730. [2024-11-13 12:47:45,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1730 states, 1146 states have (on average 1.7425828970331587) internal successors, (1997), 1716 states have internal predecessors, (1997), 17 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (17), 11 states have call predecessors, (17), 15 states have call successors, (17) [2024-11-13 12:47:45,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1730 states to 1730 states and 2031 transitions. [2024-11-13 12:47:45,917 INFO L78 Accepts]: Start accepts. Automaton has 1730 states and 2031 transitions. Word has length 67 [2024-11-13 12:47:45,917 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 12:47:45,917 INFO L471 AbstractCegarLoop]: Abstraction has 1730 states and 2031 transitions. [2024-11-13 12:47:45,917 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.25) internal successors, (65), 4 states have internal predecessors, (65), 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) [2024-11-13 12:47:45,917 INFO L276 IsEmpty]: Start isEmpty. Operand 1730 states and 2031 transitions. [2024-11-13 12:47:45,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-11-13 12:47:45,918 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 12:47:45,918 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 12:47:45,947 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b71100f-0ab2-467a-b5b1-1d0cc06159cd/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2024-11-13 12:47:46,118 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b71100f-0ab2-467a-b5b1-1d0cc06159cd/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 12:47:46,119 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr70REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 814 more)] === [2024-11-13 12:47:46,119 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 12:47:46,119 INFO L85 PathProgramCache]: Analyzing trace with hash -1789665895, now seen corresponding path program 1 times [2024-11-13 12:47:46,120 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 12:47:46,120 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1322529304] [2024-11-13 12:47:46,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:47:46,120 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 12:47:46,120 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b71100f-0ab2-467a-b5b1-1d0cc06159cd/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 12:47:46,125 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b71100f-0ab2-467a-b5b1-1d0cc06159cd/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 12:47:46,129 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b71100f-0ab2-467a-b5b1-1d0cc06159cd/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2024-11-13 12:47:46,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:47:46,513 INFO L255 TraceCheckSpWp]: Trace formula consists of 302 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-13 12:47:46,516 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 12:47:46,565 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 12:47:46,565 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 12:47:46,713 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 12:47:46,713 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 12:47:46,714 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1322529304] [2024-11-13 12:47:46,714 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1322529304] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 12:47:46,716 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-13 12:47:46,716 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2024-11-13 12:47:46,716 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1811106129] [2024-11-13 12:47:46,716 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-13 12:47:46,717 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-13 12:47:46,717 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 12:47:46,718 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-13 12:47:46,718 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-11-13 12:47:46,718 INFO L87 Difference]: Start difference. First operand 1730 states and 2031 transitions. Second operand has 8 states, 8 states have (on average 8.75) internal successors, (70), 8 states have internal predecessors, (70), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-13 12:47:46,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 12:47:46,980 INFO L93 Difference]: Finished difference Result 1742 states and 2049 transitions. [2024-11-13 12:47:46,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-13 12:47:46,980 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.75) internal successors, (70), 8 states have internal predecessors, (70), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 68 [2024-11-13 12:47:46,981 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 12:47:46,985 INFO L225 Difference]: With dead ends: 1742 [2024-11-13 12:47:46,985 INFO L226 Difference]: Without dead ends: 1742 [2024-11-13 12:47:46,986 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 137 GetRequests, 128 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=44, Invalid=66, Unknown=0, NotChecked=0, Total=110 [2024-11-13 12:47:46,986 INFO L432 NwaCegarLoop]: 1430 mSDtfsCounter, 5 mSDsluCounter, 4276 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 5706 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-13 12:47:46,986 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 5706 Invalid, 78 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-13 12:47:46,988 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1742 states. [2024-11-13 12:47:47,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1742 to 1740. [2024-11-13 12:47:47,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1740 states, 1155 states have (on average 1.741991341991342) internal successors, (2012), 1725 states have internal predecessors, (2012), 17 states have call successors, (17), 4 states have call predecessors, (17), 4 states have return successors, (17), 11 states have call predecessors, (17), 15 states have call successors, (17) [2024-11-13 12:47:47,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1740 states to 1740 states and 2046 transitions. [2024-11-13 12:47:47,017 INFO L78 Accepts]: Start accepts. Automaton has 1740 states and 2046 transitions. Word has length 68 [2024-11-13 12:47:47,017 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 12:47:47,017 INFO L471 AbstractCegarLoop]: Abstraction has 1740 states and 2046 transitions. [2024-11-13 12:47:47,017 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.75) internal successors, (70), 8 states have internal predecessors, (70), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-13 12:47:47,018 INFO L276 IsEmpty]: Start isEmpty. Operand 1740 states and 2046 transitions. [2024-11-13 12:47:47,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2024-11-13 12:47:47,018 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 12:47:47,018 INFO L215 NwaCegarLoop]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 12:47:47,049 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b71100f-0ab2-467a-b5b1-1d0cc06159cd/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0 [2024-11-13 12:47:47,219 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b71100f-0ab2-467a-b5b1-1d0cc06159cd/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 12:47:47,219 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr70REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 814 more)] === [2024-11-13 12:47:47,219 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 12:47:47,220 INFO L85 PathProgramCache]: Analyzing trace with hash 567332573, now seen corresponding path program 2 times [2024-11-13 12:47:47,220 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 12:47:47,220 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [707976852] [2024-11-13 12:47:47,220 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-13 12:47:47,220 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 12:47:47,220 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b71100f-0ab2-467a-b5b1-1d0cc06159cd/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 12:47:47,222 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b71100f-0ab2-467a-b5b1-1d0cc06159cd/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 12:47:47,223 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b71100f-0ab2-467a-b5b1-1d0cc06159cd/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2024-11-13 12:48:10,226 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-13 12:48:10,226 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-13 12:48:10,242 INFO L255 TraceCheckSpWp]: Trace formula consists of 335 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-13 12:48:10,246 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 12:48:10,398 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2024-11-13 12:48:10,399 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13 [2024-11-13 12:48:10,422 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-13 12:48:10,733 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-13 12:48:10,733 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 44 treesize of output 43 [2024-11-13 12:48:10,806 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 15 [2024-11-13 12:48:10,839 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-13 12:48:10,839 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 12:48:10,987 INFO L349 Elim1Store]: treesize reduction 7, result has 63.2 percent of original size [2024-11-13 12:48:10,987 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 24 [2024-11-13 12:48:11,006 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_985 (Array (_ BitVec 32) (_ BitVec 32)))) (= |c_ULTIMATE.start_main_#t~mem32#1.base| (select (select (store |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_#t~mem32#1.base| v_ArrVal_985) |c_ULTIMATE.start_main_~user~0#1.base|) (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|)))) is different from false [2024-11-13 12:48:11,015 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 12:48:11,015 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [707976852] [2024-11-13 12:48:11,015 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [707976852] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 12:48:11,015 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [292023596] [2024-11-13 12:48:11,015 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-13 12:48:11,015 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-13 12:48:11,015 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b71100f-0ab2-467a-b5b1-1d0cc06159cd/bin/uautomizer-verify-qhAvR1uOyd/cvc4 [2024-11-13 12:48:11,029 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b71100f-0ab2-467a-b5b1-1d0cc06159cd/bin/uautomizer-verify-qhAvR1uOyd/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-13 12:48:11,030 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b71100f-0ab2-467a-b5b1-1d0cc06159cd/bin/uautomizer-verify-qhAvR1uOyd/cvc4 --incremental --print-success --lang smt (20)] Waiting until timeout for monitored process [2024-11-13 12:48:12,740 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-13 12:48:12,740 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-13 12:48:12,789 INFO L255 TraceCheckSpWp]: Trace formula consists of 335 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-13 12:48:12,793 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 12:48:13,039 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 12:48:13,039 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 12:48:13,481 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 12:48:13,482 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [292023596] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 12:48:13,482 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-13 12:48:13,482 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 8, 8] total 24 [2024-11-13 12:48:13,482 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [869839127] [2024-11-13 12:48:13,482 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-13 12:48:13,483 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2024-11-13 12:48:13,483 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 12:48:13,484 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2024-11-13 12:48:13,484 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=513, Unknown=1, NotChecked=46, Total=650 [2024-11-13 12:48:13,484 INFO L87 Difference]: Start difference. First operand 1740 states and 2046 transitions. Second operand has 24 states, 23 states have (on average 5.869565217391305) internal successors, (135), 23 states have internal predecessors, (135), 2 states have call successors, (2), 2 states have call predecessors, (2), 3 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-13 12:48:35,398 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 12:48:35,398 INFO L93 Difference]: Finished difference Result 1756 states and 2068 transitions. [2024-11-13 12:48:35,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2024-11-13 12:48:35,399 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 23 states have (on average 5.869565217391305) internal successors, (135), 23 states have internal predecessors, (135), 2 states have call successors, (2), 2 states have call predecessors, (2), 3 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 71 [2024-11-13 12:48:35,399 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 12:48:35,403 INFO L225 Difference]: With dead ends: 1756 [2024-11-13 12:48:35,404 INFO L226 Difference]: Without dead ends: 1750 [2024-11-13 12:48:35,405 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 241 GetRequests, 191 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 450 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=392, Invalid=2161, Unknown=1, NotChecked=98, Total=2652 [2024-11-13 12:48:35,405 INFO L432 NwaCegarLoop]: 856 mSDtfsCounter, 1182 mSDsluCounter, 11369 mSDsCounter, 0 mSdLazyCounter, 9789 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 18.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1194 SdHoareTripleChecker+Valid, 12225 SdHoareTripleChecker+Invalid, 9839 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 9789 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 20.6s IncrementalHoareTripleChecker+Time [2024-11-13 12:48:35,406 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1194 Valid, 12225 Invalid, 9839 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [50 Valid, 9789 Invalid, 0 Unknown, 0 Unchecked, 20.6s Time] [2024-11-13 12:48:35,411 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1750 states. [2024-11-13 12:48:35,441 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1750 to 1748. [2024-11-13 12:48:35,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1748 states, 1164 states have (on average 1.736254295532646) internal successors, (2021), 1733 states have internal predecessors, (2021), 17 states have call successors, (17), 4 states have call predecessors, (17), 4 states have return successors, (17), 11 states have call predecessors, (17), 15 states have call successors, (17) [2024-11-13 12:48:35,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1748 states to 1748 states and 2055 transitions. [2024-11-13 12:48:35,447 INFO L78 Accepts]: Start accepts. Automaton has 1748 states and 2055 transitions. Word has length 71 [2024-11-13 12:48:35,448 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 12:48:35,448 INFO L471 AbstractCegarLoop]: Abstraction has 1748 states and 2055 transitions. [2024-11-13 12:48:35,448 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 23 states have (on average 5.869565217391305) internal successors, (135), 23 states have internal predecessors, (135), 2 states have call successors, (2), 2 states have call predecessors, (2), 3 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-13 12:48:35,448 INFO L276 IsEmpty]: Start isEmpty. Operand 1748 states and 2055 transitions. [2024-11-13 12:48:35,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-11-13 12:48:35,449 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 12:48:35,449 INFO L215 NwaCegarLoop]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 12:48:35,491 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b71100f-0ab2-467a-b5b1-1d0cc06159cd/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Ended with exit code 0 [2024-11-13 12:48:35,655 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b71100f-0ab2-467a-b5b1-1d0cc06159cd/bin/uautomizer-verify-qhAvR1uOyd/cvc4 --incremental --print-success --lang smt (20)] Forceful destruction successful, exit code 0 [2024-11-13 12:48:35,850 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b71100f-0ab2-467a-b5b1-1d0cc06159cd/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b71100f-0ab2-467a-b5b1-1d0cc06159cd/bin/uautomizer-verify-qhAvR1uOyd/cvc4 --incremental --print-success --lang smt [2024-11-13 12:48:35,850 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr71REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 814 more)] === [2024-11-13 12:48:35,850 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 12:48:35,851 INFO L85 PathProgramCache]: Analyzing trace with hash -336784034, now seen corresponding path program 1 times [2024-11-13 12:48:35,851 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 12:48:35,851 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1828009030] [2024-11-13 12:48:35,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:48:35,851 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 12:48:35,851 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b71100f-0ab2-467a-b5b1-1d0cc06159cd/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 12:48:35,853 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b71100f-0ab2-467a-b5b1-1d0cc06159cd/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 12:48:35,855 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b71100f-0ab2-467a-b5b1-1d0cc06159cd/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2024-11-13 12:48:36,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:48:36,259 INFO L255 TraceCheckSpWp]: Trace formula consists of 401 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-13 12:48:36,261 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 12:48:36,513 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 12:48:36,513 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 12:48:37,346 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 12:48:37,346 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 12:48:37,346 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1828009030] [2024-11-13 12:48:37,346 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1828009030] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 12:48:37,346 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-13 12:48:37,346 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 26 [2024-11-13 12:48:37,346 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [156458100] [2024-11-13 12:48:37,347 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-13 12:48:37,347 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2024-11-13 12:48:37,347 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 12:48:37,348 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2024-11-13 12:48:37,348 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=193, Invalid=457, Unknown=0, NotChecked=0, Total=650 [2024-11-13 12:48:37,348 INFO L87 Difference]: Start difference. First operand 1748 states and 2055 transitions. Second operand has 26 states, 26 states have (on average 3.3846153846153846) internal successors, (88), 26 states have internal predecessors, (88), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-13 12:48:40,104 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 12:48:40,104 INFO L93 Difference]: Finished difference Result 1772 states and 2094 transitions. [2024-11-13 12:48:40,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2024-11-13 12:48:40,108 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 3.3846153846153846) internal successors, (88), 26 states have internal predecessors, (88), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 77 [2024-11-13 12:48:40,109 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 12:48:40,120 INFO L225 Difference]: With dead ends: 1772 [2024-11-13 12:48:40,123 INFO L226 Difference]: Without dead ends: 1766 [2024-11-13 12:48:40,124 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 173 GetRequests, 128 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 100 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=728, Invalid=1434, Unknown=0, NotChecked=0, Total=2162 [2024-11-13 12:48:40,125 INFO L432 NwaCegarLoop]: 1430 mSDtfsCounter, 22 mSDsluCounter, 17107 mSDsCounter, 0 mSdLazyCounter, 607 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 18537 SdHoareTripleChecker+Invalid, 646 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 607 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-13 12:48:40,125 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 18537 Invalid, 646 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 607 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-13 12:48:40,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1766 states. [2024-11-13 12:48:40,179 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1766 to 1766. [2024-11-13 12:48:40,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1766 states, 1182 states have (on average 1.7292724196277496) internal successors, (2044), 1751 states have internal predecessors, (2044), 17 states have call successors, (17), 4 states have call predecessors, (17), 4 states have return successors, (17), 11 states have call predecessors, (17), 15 states have call successors, (17) [2024-11-13 12:48:40,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1766 states to 1766 states and 2078 transitions. [2024-11-13 12:48:40,195 INFO L78 Accepts]: Start accepts. Automaton has 1766 states and 2078 transitions. Word has length 77 [2024-11-13 12:48:40,195 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 12:48:40,195 INFO L471 AbstractCegarLoop]: Abstraction has 1766 states and 2078 transitions. [2024-11-13 12:48:40,195 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 3.3846153846153846) internal successors, (88), 26 states have internal predecessors, (88), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-13 12:48:40,195 INFO L276 IsEmpty]: Start isEmpty. Operand 1766 states and 2078 transitions. [2024-11-13 12:48:40,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2024-11-13 12:48:40,196 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 12:48:40,196 INFO L215 NwaCegarLoop]: trace histogram [22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 12:48:40,252 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b71100f-0ab2-467a-b5b1-1d0cc06159cd/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Ended with exit code 0 [2024-11-13 12:48:40,396 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b71100f-0ab2-467a-b5b1-1d0cc06159cd/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 12:48:40,397 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr71REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 814 more)] === [2024-11-13 12:48:40,397 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 12:48:40,397 INFO L85 PathProgramCache]: Analyzing trace with hash -1379859874, now seen corresponding path program 2 times [2024-11-13 12:48:40,398 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 12:48:40,398 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1895744392] [2024-11-13 12:48:40,398 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-13 12:48:40,398 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 12:48:40,399 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b71100f-0ab2-467a-b5b1-1d0cc06159cd/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 12:48:40,401 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b71100f-0ab2-467a-b5b1-1d0cc06159cd/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 12:48:40,403 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b71100f-0ab2-467a-b5b1-1d0cc06159cd/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2024-11-13 12:48:51,603 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-13 12:48:51,603 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-13 12:48:51,623 INFO L255 TraceCheckSpWp]: Trace formula consists of 533 conjuncts, 64 conjuncts are in the unsatisfiable core [2024-11-13 12:48:51,630 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 12:48:51,787 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 [2024-11-13 12:48:51,807 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2024-11-13 12:48:51,807 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13 [2024-11-13 12:48:51,844 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-13 12:48:51,850 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2024-11-13 12:48:52,001 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 10 [2024-11-13 12:48:52,006 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2024-11-13 12:48:52,711 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-13 12:48:52,712 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 62 treesize of output 57 [2024-11-13 12:48:52,726 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 13 [2024-11-13 12:48:52,802 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 13 [2024-11-13 12:48:52,814 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2024-11-13 12:48:52,862 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 231 trivial. 0 not checked. [2024-11-13 12:48:52,862 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 12:48:53,742 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 12:48:53,742 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1895744392] [2024-11-13 12:48:53,742 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1895744392] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 12:48:53,742 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [168778804] [2024-11-13 12:48:53,742 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-13 12:48:53,742 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-13 12:48:53,742 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b71100f-0ab2-467a-b5b1-1d0cc06159cd/bin/uautomizer-verify-qhAvR1uOyd/cvc4 [2024-11-13 12:48:53,744 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b71100f-0ab2-467a-b5b1-1d0cc06159cd/bin/uautomizer-verify-qhAvR1uOyd/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-13 12:48:53,747 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b71100f-0ab2-467a-b5b1-1d0cc06159cd/bin/uautomizer-verify-qhAvR1uOyd/cvc4 --incremental --print-success --lang smt (23)] Waiting until timeout for monitored process [2024-11-13 12:48:55,639 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-13 12:48:55,639 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-13 12:48:55,686 INFO L255 TraceCheckSpWp]: Trace formula consists of 533 conjuncts, 44 conjuncts are in the unsatisfiable core [2024-11-13 12:48:55,688 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 12:48:57,402 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 0 proven. 253 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 12:48:57,402 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 12:49:01,388 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 0 proven. 253 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 12:49:01,390 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [168778804] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 12:49:01,390 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-13 12:49:01,390 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 26, 26] total 58 [2024-11-13 12:49:01,390 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1281109743] [2024-11-13 12:49:01,390 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-13 12:49:01,391 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 58 states [2024-11-13 12:49:01,391 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 12:49:01,392 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 58 interpolants. [2024-11-13 12:49:01,393 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=700, Invalid=2953, Unknown=7, NotChecked=0, Total=3660 [2024-11-13 12:49:01,394 INFO L87 Difference]: Start difference. First operand 1766 states and 2078 transitions. Second operand has 58 states, 57 states have (on average 3.0) internal successors, (171), 58 states have internal predecessors, (171), 2 states have call successors, (2), 2 states have call predecessors, (2), 3 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-13 12:50:19,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 12:50:19,478 INFO L93 Difference]: Finished difference Result 1868 states and 2235 transitions. [2024-11-13 12:50:19,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 130 states. [2024-11-13 12:50:19,479 INFO L78 Accepts]: Start accepts. Automaton has has 58 states, 57 states have (on average 3.0) internal successors, (171), 58 states have internal predecessors, (171), 2 states have call successors, (2), 2 states have call predecessors, (2), 3 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 89 [2024-11-13 12:50:19,479 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 12:50:19,484 INFO L225 Difference]: With dead ends: 1868 [2024-11-13 12:50:19,484 INFO L226 Difference]: Without dead ends: 1852 [2024-11-13 12:50:19,495 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 368 GetRequests, 210 SyntacticMatches, 1 SemanticMatches, 157 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6172 ImplicationChecksByTransitivity, 27.8s TimeCoverageRelationStatistics Valid=5454, Invalid=19660, Unknown=8, NotChecked=0, Total=25122 [2024-11-13 12:50:19,495 INFO L432 NwaCegarLoop]: 864 mSDtfsCounter, 1189 mSDsluCounter, 23219 mSDsCounter, 0 mSdLazyCounter, 21478 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 48.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1199 SdHoareTripleChecker+Valid, 24083 SdHoareTripleChecker+Invalid, 21517 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.3s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 21478 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 54.7s IncrementalHoareTripleChecker+Time [2024-11-13 12:50:19,498 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1199 Valid, 24083 Invalid, 21517 Unknown, 0 Unchecked, 0.3s Time], IncrementalHoareTripleChecker [39 Valid, 21478 Invalid, 0 Unknown, 0 Unchecked, 54.7s Time] [2024-11-13 12:50:19,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1852 states. [2024-11-13 12:50:19,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1852 to 1852. [2024-11-13 12:50:19,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1852 states, 1268 states have (on average 1.6892744479495267) internal successors, (2142), 1836 states have internal predecessors, (2142), 17 states have call successors, (17), 5 states have call predecessors, (17), 5 states have return successors, (17), 11 states have call predecessors, (17), 15 states have call successors, (17) [2024-11-13 12:50:19,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1852 states to 1852 states and 2176 transitions. [2024-11-13 12:50:19,556 INFO L78 Accepts]: Start accepts. Automaton has 1852 states and 2176 transitions. Word has length 89 [2024-11-13 12:50:19,556 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 12:50:19,557 INFO L471 AbstractCegarLoop]: Abstraction has 1852 states and 2176 transitions. [2024-11-13 12:50:19,557 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 58 states, 57 states have (on average 3.0) internal successors, (171), 58 states have internal predecessors, (171), 2 states have call successors, (2), 2 states have call predecessors, (2), 3 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-13 12:50:19,557 INFO L276 IsEmpty]: Start isEmpty. Operand 1852 states and 2176 transitions. [2024-11-13 12:50:19,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2024-11-13 12:50:19,558 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 12:50:19,558 INFO L215 NwaCegarLoop]: trace histogram [44, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 12:50:19,572 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b71100f-0ab2-467a-b5b1-1d0cc06159cd/bin/uautomizer-verify-qhAvR1uOyd/cvc4 --incremental --print-success --lang smt (23)] Forceful destruction successful, exit code 0 [2024-11-13 12:50:19,786 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b71100f-0ab2-467a-b5b1-1d0cc06159cd/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Ended with exit code 0 [2024-11-13 12:50:19,958 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b71100f-0ab2-467a-b5b1-1d0cc06159cd/bin/uautomizer-verify-qhAvR1uOyd/cvc4 --incremental --print-success --lang smt,22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b71100f-0ab2-467a-b5b1-1d0cc06159cd/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 12:50:19,959 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr74REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 814 more)] === [2024-11-13 12:50:19,959 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 12:50:19,959 INFO L85 PathProgramCache]: Analyzing trace with hash -692676111, now seen corresponding path program 1 times [2024-11-13 12:50:19,960 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 12:50:19,960 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2076059591] [2024-11-13 12:50:19,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:50:19,960 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 12:50:19,960 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b71100f-0ab2-467a-b5b1-1d0cc06159cd/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 12:50:19,962 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b71100f-0ab2-467a-b5b1-1d0cc06159cd/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 12:50:19,963 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b71100f-0ab2-467a-b5b1-1d0cc06159cd/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2024-11-13 12:50:20,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:50:20,587 INFO L255 TraceCheckSpWp]: Trace formula consists of 795 conjuncts, 58 conjuncts are in the unsatisfiable core [2024-11-13 12:50:20,597 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 12:50:20,602 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 [2024-11-13 12:50:20,784 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2024-11-13 12:50:20,784 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13 [2024-11-13 12:50:20,813 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-13 12:50:21,223 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-13 12:50:21,224 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 31 treesize of output 32 [2024-11-13 12:50:21,278 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-13 12:50:21,279 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 44 treesize of output 43 [2024-11-13 12:50:21,323 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 15 [2024-11-13 12:50:21,343 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 946 trivial. 0 not checked. [2024-11-13 12:50:21,343 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 12:50:21,388 INFO L349 Elim1Store]: treesize reduction 7, result has 63.2 percent of original size [2024-11-13 12:50:21,388 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 24 [2024-11-13 12:50:21,394 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_2196 (Array (_ BitVec 32) (_ BitVec 32)))) (= |c_ULTIMATE.start_main_#t~mem34#1.base| (select (select (store |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_#t~mem34#1.base| v_ArrVal_2196) |c_ULTIMATE.start_main_~user~0#1.base|) (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|)))) is different from false [2024-11-13 12:50:21,402 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_2196 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (let ((.cse0 (select (select |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (= .cse0 (select (select (store |c_#memory_$Pointer$#2.base| .cse0 v_ArrVal_2196) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))))) is different from false [2024-11-13 12:50:21,847 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_2196 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_2242 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (store |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_#t~mem32#1.base| v_ArrVal_2242)) (.cse2 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (let ((.cse1 (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (= (select (select (store .cse0 .cse1 v_ArrVal_2196) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2) .cse1)))) is different from false [2024-11-13 12:50:21,850 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 12:50:21,850 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2076059591] [2024-11-13 12:50:21,850 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2076059591] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 12:50:21,850 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [2054112078] [2024-11-13 12:50:21,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:50:21,850 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-13 12:50:21,850 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b71100f-0ab2-467a-b5b1-1d0cc06159cd/bin/uautomizer-verify-qhAvR1uOyd/cvc4 [2024-11-13 12:50:21,852 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b71100f-0ab2-467a-b5b1-1d0cc06159cd/bin/uautomizer-verify-qhAvR1uOyd/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-13 12:50:21,853 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b71100f-0ab2-467a-b5b1-1d0cc06159cd/bin/uautomizer-verify-qhAvR1uOyd/cvc4 --incremental --print-success --lang smt (25)] Waiting until timeout for monitored process [2024-11-13 12:50:25,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:50:25,051 INFO L255 TraceCheckSpWp]: Trace formula consists of 795 conjuncts, 62 conjuncts are in the unsatisfiable core [2024-11-13 12:50:25,061 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 12:50:25,066 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 [2024-11-13 12:50:25,284 INFO L349 Elim1Store]: treesize reduction 22, result has 35.3 percent of original size [2024-11-13 12:50:25,285 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 19 treesize of output 27 [2024-11-13 12:50:25,346 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-13 12:50:25,551 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 12 [2024-11-13 12:50:26,957 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-13 12:50:26,957 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 44 treesize of output 43 [2024-11-13 12:50:27,122 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-13 12:50:27,122 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 44 treesize of output 43 [2024-11-13 12:50:27,158 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 15 [2024-11-13 12:50:27,215 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 946 trivial. 0 not checked. [2024-11-13 12:50:27,215 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 12:50:27,324 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_2650 (Array (_ BitVec 32) (_ BitVec 32)))) (= (_ bv0 1) (bvadd (_ bv1 1) (select |c_#valid| (let ((.cse0 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (select (select (store |c_#memory_$Pointer$#2.base| (select (select |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse0) v_ArrVal_2650) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0)))))) is different from false [2024-11-13 12:50:27,774 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_2696 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_2650 (Array (_ BitVec 32) (_ BitVec 32)))) (= (_ bv0 1) (bvadd (select |c_#valid| (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (select (select (let ((.cse0 (store |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_#t~mem32#1.base| v_ArrVal_2696))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_2650)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (_ bv1 1)))) is different from false [2024-11-13 12:50:27,777 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [2054112078] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 12:50:27,777 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-13 12:50:27,777 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9] total 17 [2024-11-13 12:50:27,777 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2061909311] [2024-11-13 12:50:27,777 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-13 12:50:27,777 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-13 12:50:27,778 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 12:50:27,778 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-13 12:50:27,778 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=308, Unknown=16, NotChecked=200, Total=600 [2024-11-13 12:50:27,778 INFO L87 Difference]: Start difference. First operand 1852 states and 2176 transitions. Second operand has 18 states, 15 states have (on average 5.866666666666666) internal successors, (88), 18 states have internal predecessors, (88), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-13 12:50:44,860 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 12:50:44,861 INFO L93 Difference]: Finished difference Result 1853 states and 2177 transitions. [2024-11-13 12:50:44,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-13 12:50:44,862 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 15 states have (on average 5.866666666666666) internal successors, (88), 18 states have internal predecessors, (88), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 114 [2024-11-13 12:50:44,862 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 12:50:44,869 INFO L225 Difference]: With dead ends: 1853 [2024-11-13 12:50:44,870 INFO L226 Difference]: Without dead ends: 1853 [2024-11-13 12:50:44,870 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 241 GetRequests, 216 SyntacticMatches, 1 SemanticMatches, 24 ConstructedPredicates, 5 IntricatePredicates, 0 DeprecatedPredicates, 80 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=85, Invalid=339, Unknown=16, NotChecked=210, Total=650 [2024-11-13 12:50:44,871 INFO L432 NwaCegarLoop]: 858 mSDtfsCounter, 1130 mSDsluCounter, 7006 mSDsCounter, 0 mSdLazyCounter, 6678 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1142 SdHoareTripleChecker+Valid, 7864 SdHoareTripleChecker+Invalid, 6710 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 6678 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.8s IncrementalHoareTripleChecker+Time [2024-11-13 12:50:44,875 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1142 Valid, 7864 Invalid, 6710 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [32 Valid, 6678 Invalid, 0 Unknown, 0 Unchecked, 16.8s Time] [2024-11-13 12:50:44,877 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1853 states. [2024-11-13 12:50:44,899 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1853 to 1851. [2024-11-13 12:50:44,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1851 states, 1268 states have (on average 1.6876971608832807) internal successors, (2140), 1835 states have internal predecessors, (2140), 17 states have call successors, (17), 5 states have call predecessors, (17), 5 states have return successors, (17), 11 states have call predecessors, (17), 15 states have call successors, (17) [2024-11-13 12:50:44,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1851 states to 1851 states and 2174 transitions. [2024-11-13 12:50:44,906 INFO L78 Accepts]: Start accepts. Automaton has 1851 states and 2174 transitions. Word has length 114 [2024-11-13 12:50:44,906 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 12:50:44,907 INFO L471 AbstractCegarLoop]: Abstraction has 1851 states and 2174 transitions. [2024-11-13 12:50:44,907 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 15 states have (on average 5.866666666666666) internal successors, (88), 18 states have internal predecessors, (88), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-13 12:50:44,907 INFO L276 IsEmpty]: Start isEmpty. Operand 1851 states and 2174 transitions. [2024-11-13 12:50:44,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2024-11-13 12:50:44,908 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 12:50:44,908 INFO L215 NwaCegarLoop]: trace histogram [44, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 12:50:44,927 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b71100f-0ab2-467a-b5b1-1d0cc06159cd/bin/uautomizer-verify-qhAvR1uOyd/cvc4 --incremental --print-success --lang smt (25)] Ended with exit code 0 [2024-11-13 12:50:45,149 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b71100f-0ab2-467a-b5b1-1d0cc06159cd/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Forceful destruction successful, exit code 0 [2024-11-13 12:50:45,309 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b71100f-0ab2-467a-b5b1-1d0cc06159cd/bin/uautomizer-verify-qhAvR1uOyd/cvc4 --incremental --print-success --lang smt,24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b71100f-0ab2-467a-b5b1-1d0cc06159cd/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 12:50:45,310 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr75REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 814 more)] === [2024-11-13 12:50:45,310 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 12:50:45,310 INFO L85 PathProgramCache]: Analyzing trace with hash -692676110, now seen corresponding path program 1 times [2024-11-13 12:50:45,311 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 12:50:45,311 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1660856672] [2024-11-13 12:50:45,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:50:45,312 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 12:50:45,312 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b71100f-0ab2-467a-b5b1-1d0cc06159cd/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 12:50:45,316 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b71100f-0ab2-467a-b5b1-1d0cc06159cd/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 12:50:45,317 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b71100f-0ab2-467a-b5b1-1d0cc06159cd/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2024-11-13 12:50:46,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:50:46,154 INFO L255 TraceCheckSpWp]: Trace formula consists of 795 conjuncts, 111 conjuncts are in the unsatisfiable core [2024-11-13 12:50:46,169 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 12:50:46,173 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 [2024-11-13 12:50:46,353 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 [2024-11-13 12:50:46,379 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2024-11-13 12:50:46,379 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13 [2024-11-13 12:50:46,409 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2024-11-13 12:50:46,425 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-13 12:50:46,582 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 10 [2024-11-13 12:50:46,589 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2024-11-13 12:50:47,652 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-13 12:50:47,653 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 62 treesize of output 57 [2024-11-13 12:50:47,670 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 13 [2024-11-13 12:50:47,839 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-13 12:50:47,839 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 62 treesize of output 57 [2024-11-13 12:50:47,851 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 13 [2024-11-13 12:50:47,897 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 13 [2024-11-13 12:50:47,909 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2024-11-13 12:50:47,952 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 946 trivial. 0 not checked. [2024-11-13 12:50:47,952 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 12:50:48,225 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (and (forall ((v_ArrVal_3151 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (select (select (store |c_#memory_$Pointer$#2.offset| |c_ULTIMATE.start_main_#t~mem34#1.base| v_ArrVal_3151) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (bvule (bvadd (_ bv4 32) .cse0) (bvadd (_ bv8 32) .cse0)))) (forall ((v_ArrVal_3150 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_3151 (Array (_ BitVec 32) (_ BitVec 32)))) (bvule (bvadd (_ bv8 32) (select (select (store |c_#memory_$Pointer$#2.offset| |c_ULTIMATE.start_main_#t~mem34#1.base| v_ArrVal_3151) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)) (select |c_#length| (select (select (store |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_#t~mem34#1.base| v_ArrVal_3150) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))))) is different from false [2024-11-13 12:50:48,259 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse2 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (let ((.cse1 (select (select |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (and (forall ((v_ArrVal_3151 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (select (select (store |c_#memory_$Pointer$#2.offset| .cse1 v_ArrVal_3151) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (bvule (bvadd (_ bv4 32) .cse0) (bvadd (_ bv8 32) .cse0)))) (forall ((v_ArrVal_3150 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_3151 (Array (_ BitVec 32) (_ BitVec 32)))) (bvule (bvadd (_ bv8 32) (select (select (store |c_#memory_$Pointer$#2.offset| .cse1 v_ArrVal_3151) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2)) (select |c_#length| (select (select (store |c_#memory_$Pointer$#2.base| .cse1 v_ArrVal_3150) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))))))) is different from false [2024-11-13 12:50:50,274 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (and (forall ((v_ArrVal_3243 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_3151 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_3242 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (select (select (store (store |c_#memory_$Pointer$#2.offset| |c_ULTIMATE.start_main_#t~mem32#1.base| v_ArrVal_3242) (select (select (store |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_#t~mem32#1.base| v_ArrVal_3243) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_3151) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (bvule (bvadd (_ bv4 32) .cse0) (bvadd (_ bv8 32) .cse0)))) (forall ((v_ArrVal_3150 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_3243 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_3151 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_3242 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse3 (store |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_#t~mem32#1.base| v_ArrVal_3243))) (let ((.cse2 (select (select .cse3 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (bvule (bvadd (_ bv8 32) (select (select (store (store |c_#memory_$Pointer$#2.offset| |c_ULTIMATE.start_main_#t~mem32#1.base| v_ArrVal_3242) .cse2 v_ArrVal_3151) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)) (select |c_#length| (select (select (store .cse3 .cse2 v_ArrVal_3150) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))))))) is different from false [2024-11-13 12:50:50,283 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 12:50:50,283 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1660856672] [2024-11-13 12:50:50,283 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1660856672] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 12:50:50,284 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [2096332083] [2024-11-13 12:50:50,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:50:50,284 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-13 12:50:50,284 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b71100f-0ab2-467a-b5b1-1d0cc06159cd/bin/uautomizer-verify-qhAvR1uOyd/cvc4 [2024-11-13 12:50:50,286 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b71100f-0ab2-467a-b5b1-1d0cc06159cd/bin/uautomizer-verify-qhAvR1uOyd/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-13 12:50:50,288 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b71100f-0ab2-467a-b5b1-1d0cc06159cd/bin/uautomizer-verify-qhAvR1uOyd/cvc4 --incremental --print-success --lang smt (27)] Waiting until timeout for monitored process [2024-11-13 12:50:54,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:50:54,562 INFO L255 TraceCheckSpWp]: Trace formula consists of 795 conjuncts, 74 conjuncts are in the unsatisfiable core [2024-11-13 12:50:54,571 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 12:50:54,576 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 [2024-11-13 12:50:54,584 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 [2024-11-13 12:50:55,190 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2024-11-13 12:50:55,190 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13 [2024-11-13 12:50:55,205 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 14 [2024-11-13 12:50:55,301 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-11-13 12:50:55,313 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-11-13 12:50:55,417 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2024-11-13 12:50:55,495 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2024-11-13 12:50:56,333 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-13 12:50:56,334 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2024-11-13 12:50:56,644 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 34 [2024-11-13 12:50:56,656 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 22 [2024-11-13 12:50:56,875 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 12:50:56,875 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 39 treesize of output 22 [2024-11-13 12:50:56,889 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 12:50:56,890 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 7 [2024-11-13 12:50:57,048 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 946 trivial. 0 not checked. [2024-11-13 12:50:57,048 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 12:50:57,495 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 239 treesize of output 167 [2024-11-13 12:51:47,602 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [2096332083] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 12:51:47,602 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-13 12:51:47,602 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 11] total 19 [2024-11-13 12:51:47,602 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [238215829] [2024-11-13 12:51:47,602 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-13 12:51:47,603 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-11-13 12:51:47,603 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 12:51:47,603 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-11-13 12:51:47,604 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=516, Unknown=15, NotChecked=144, Total=756 [2024-11-13 12:51:47,604 INFO L87 Difference]: Start difference. First operand 1851 states and 2174 transitions. Second operand has 20 states, 17 states have (on average 8.117647058823529) internal successors, (138), 20 states have internal predecessors, (138), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-13 12:54:33,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 12:54:33,877 INFO L93 Difference]: Finished difference Result 2526 states and 2906 transitions. [2024-11-13 12:54:33,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-13 12:54:33,878 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 17 states have (on average 8.117647058823529) internal successors, (138), 20 states have internal predecessors, (138), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 114 [2024-11-13 12:54:33,878 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 12:54:33,884 INFO L225 Difference]: With dead ends: 2526 [2024-11-13 12:54:33,884 INFO L226 Difference]: Without dead ends: 2526 [2024-11-13 12:54:33,885 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 248 GetRequests, 213 SyntacticMatches, 1 SemanticMatches, 34 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 194 ImplicationChecksByTransitivity, 53.5s TimeCoverageRelationStatistics Valid=163, Invalid=890, Unknown=15, NotChecked=192, Total=1260 [2024-11-13 12:54:33,886 INFO L432 NwaCegarLoop]: 659 mSDtfsCounter, 1845 mSDsluCounter, 7514 mSDsCounter, 0 mSdLazyCounter, 14598 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 157.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1863 SdHoareTripleChecker+Valid, 8173 SdHoareTripleChecker+Invalid, 14617 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 14598 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 162.7s IncrementalHoareTripleChecker+Time [2024-11-13 12:54:33,886 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1863 Valid, 8173 Invalid, 14617 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [19 Valid, 14598 Invalid, 0 Unknown, 0 Unchecked, 162.7s Time] [2024-11-13 12:54:33,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2526 states. [2024-11-13 12:54:33,908 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2526 to 1850. [2024-11-13 12:54:33,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1850 states, 1268 states have (on average 1.6861198738170347) internal successors, (2138), 1834 states have internal predecessors, (2138), 17 states have call successors, (17), 5 states have call predecessors, (17), 5 states have return successors, (17), 11 states have call predecessors, (17), 15 states have call successors, (17) [2024-11-13 12:54:33,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1850 states to 1850 states and 2172 transitions. [2024-11-13 12:54:33,916 INFO L78 Accepts]: Start accepts. Automaton has 1850 states and 2172 transitions. Word has length 114 [2024-11-13 12:54:33,916 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 12:54:33,916 INFO L471 AbstractCegarLoop]: Abstraction has 1850 states and 2172 transitions. [2024-11-13 12:54:33,916 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 17 states have (on average 8.117647058823529) internal successors, (138), 20 states have internal predecessors, (138), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-13 12:54:33,916 INFO L276 IsEmpty]: Start isEmpty. Operand 1850 states and 2172 transitions. [2024-11-13 12:54:33,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2024-11-13 12:54:33,918 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 12:54:33,918 INFO L215 NwaCegarLoop]: trace histogram [44, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 12:54:33,957 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b71100f-0ab2-467a-b5b1-1d0cc06159cd/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Ended with exit code 0 [2024-11-13 12:54:34,132 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b71100f-0ab2-467a-b5b1-1d0cc06159cd/bin/uautomizer-verify-qhAvR1uOyd/cvc4 --incremental --print-success --lang smt (27)] Ended with exit code 0 [2024-11-13 12:54:34,319 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b71100f-0ab2-467a-b5b1-1d0cc06159cd/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b71100f-0ab2-467a-b5b1-1d0cc06159cd/bin/uautomizer-verify-qhAvR1uOyd/cvc4 --incremental --print-success --lang smt [2024-11-13 12:54:34,319 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr78REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 814 more)] === [2024-11-13 12:54:34,319 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 12:54:34,320 INFO L85 PathProgramCache]: Analyzing trace with hash 1804138372, now seen corresponding path program 1 times [2024-11-13 12:54:34,320 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 12:54:34,320 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1096325897] [2024-11-13 12:54:34,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:54:34,320 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 12:54:34,320 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b71100f-0ab2-467a-b5b1-1d0cc06159cd/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 12:54:34,322 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b71100f-0ab2-467a-b5b1-1d0cc06159cd/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 12:54:34,323 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b71100f-0ab2-467a-b5b1-1d0cc06159cd/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2024-11-13 12:54:35,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:54:35,097 INFO L255 TraceCheckSpWp]: Trace formula consists of 824 conjuncts, 60 conjuncts are in the unsatisfiable core [2024-11-13 12:54:35,106 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 12:54:35,125 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 [2024-11-13 12:54:36,311 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2024-11-13 12:54:36,311 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13 [2024-11-13 12:54:36,413 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-13 12:54:38,670 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-13 12:54:38,670 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 31 treesize of output 32 [2024-11-13 12:54:39,077 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-13 12:54:39,077 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 31 treesize of output 32 [2024-11-13 12:54:39,494 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-13 12:54:39,494 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 44 treesize of output 43 [2024-11-13 12:54:39,866 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 15 [2024-11-13 12:54:40,064 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 946 trivial. 0 not checked. [2024-11-13 12:54:40,064 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 12:54:40,453 INFO L349 Elim1Store]: treesize reduction 7, result has 63.2 percent of original size [2024-11-13 12:54:40,453 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 24 [2024-11-13 12:54:40,906 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_4124 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (let ((.cse0 (select (select |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (= (select (select (store |c_#memory_$Pointer$#2.base| .cse0 v_ArrVal_4124) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) .cse0)))) is different from false [2024-11-13 12:54:41,003 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_4124 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_4123 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (store |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_#t~mem34#1.base| v_ArrVal_4123)) (.cse2 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (let ((.cse1 (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (= (select (select (store .cse0 .cse1 v_ArrVal_4124) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2) .cse1)))) is different from false [2024-11-13 12:54:41,074 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_4124 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_4123 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse2 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (let ((.cse1 (store |c_#memory_$Pointer$#2.base| (select (select |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse2) v_ArrVal_4123))) (let ((.cse0 (select (select .cse1 |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (= .cse0 (select (select (store .cse1 .cse0 v_ArrVal_4124) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2)))))) is different from false [2024-11-13 12:54:42,726 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_4170 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_4124 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_4123 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse2 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (let ((.cse1 (let ((.cse3 (store |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_#t~mem32#1.base| v_ArrVal_4170))) (store .cse3 (select (select .cse3 |c_ULTIMATE.start_main_~user~0#1.base|) .cse2) v_ArrVal_4123)))) (let ((.cse0 (select (select .cse1 |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (= .cse0 (select (select (store .cse1 .cse0 v_ArrVal_4124) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2)))))) is different from false [2024-11-13 12:54:42,741 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 12:54:42,742 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1096325897] [2024-11-13 12:54:42,742 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1096325897] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 12:54:42,742 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1922663461] [2024-11-13 12:54:42,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:54:42,742 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-13 12:54:42,742 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b71100f-0ab2-467a-b5b1-1d0cc06159cd/bin/uautomizer-verify-qhAvR1uOyd/cvc4 [2024-11-13 12:54:42,745 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b71100f-0ab2-467a-b5b1-1d0cc06159cd/bin/uautomizer-verify-qhAvR1uOyd/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-13 12:54:42,749 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b71100f-0ab2-467a-b5b1-1d0cc06159cd/bin/uautomizer-verify-qhAvR1uOyd/cvc4 --incremental --print-success --lang smt (29)] Waiting until timeout for monitored process [2024-11-13 12:54:48,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:54:48,166 INFO L255 TraceCheckSpWp]: Trace formula consists of 824 conjuncts, 64 conjuncts are in the unsatisfiable core [2024-11-13 12:54:48,176 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 12:54:48,214 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 [2024-11-13 12:54:49,564 INFO L349 Elim1Store]: treesize reduction 22, result has 35.3 percent of original size [2024-11-13 12:54:49,565 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 19 treesize of output 27 [2024-11-13 12:54:49,996 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-13 12:54:51,086 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 12 [2024-11-13 12:54:56,833 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-13 12:54:56,834 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 44 treesize of output 43 [2024-11-13 12:54:57,692 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-13 12:54:57,692 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 44 treesize of output 43 [2024-11-13 12:54:58,293 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-13 12:54:58,293 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 44 treesize of output 43 [2024-11-13 12:54:58,426 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 15 [2024-11-13 12:54:58,773 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 946 trivial. 0 not checked. [2024-11-13 12:54:58,773 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 12:54:59,302 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_4594 (Array (_ BitVec 32) (_ BitVec 32)))) (= (_ bv0 1) (bvadd (_ bv1 1) (select |c_#valid| (let ((.cse0 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (select (select (store |c_#memory_$Pointer$#2.base| (select (select |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse0) v_ArrVal_4594) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0)))))) is different from false [2024-11-13 12:54:59,368 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_4593 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_4594 (Array (_ BitVec 32) (_ BitVec 32)))) (= (_ bv0 1) (bvadd (_ bv1 1) (select |c_#valid| (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (select (select (let ((.cse0 (store |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_#t~mem34#1.base| v_ArrVal_4593))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_4594)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))))) is different from false [2024-11-13 12:54:59,413 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_4593 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_4594 (Array (_ BitVec 32) (_ BitVec 32)))) (= (_ bv0 1) (bvadd (_ bv1 1) (select |c_#valid| (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (select (select (let ((.cse0 (store |c_#memory_$Pointer$#2.base| (select (select |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_4593))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_4594)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))))) is different from false [2024-11-13 12:55:00,839 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_4640 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_4593 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_4594 (Array (_ BitVec 32) (_ BitVec 32)))) (= (_ bv0 1) (bvadd (_ bv1 1) (select |c_#valid| (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (select (select (let ((.cse0 (let ((.cse2 (store |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_#t~mem32#1.base| v_ArrVal_4640))) (store .cse2 (select (select .cse2 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_4593)))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_4594)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))))) is different from false [2024-11-13 12:55:00,854 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1922663461] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 12:55:00,854 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-13 12:55:00,854 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 10] total 19 [2024-11-13 12:55:00,854 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [828331236] [2024-11-13 12:55:00,854 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-13 12:55:00,855 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-11-13 12:55:00,855 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 12:55:00,855 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-11-13 12:55:00,856 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=97, Invalid=416, Unknown=25, NotChecked=392, Total=930 [2024-11-13 12:55:00,856 INFO L87 Difference]: Start difference. First operand 1850 states and 2172 transitions. Second operand has 20 states, 17 states have (on average 5.529411764705882) internal successors, (94), 20 states have internal predecessors, (94), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-13 12:56:07,759 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 12:56:07,760 INFO L93 Difference]: Finished difference Result 1851 states and 2173 transitions. [2024-11-13 12:56:07,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-13 12:56:07,760 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 17 states have (on average 5.529411764705882) internal successors, (94), 20 states have internal predecessors, (94), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 117 [2024-11-13 12:56:07,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 12:56:07,766 INFO L225 Difference]: With dead ends: 1851 [2024-11-13 12:56:07,766 INFO L226 Difference]: Without dead ends: 1851 [2024-11-13 12:56:07,767 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 253 GetRequests, 222 SyntacticMatches, 1 SemanticMatches, 30 ConstructedPredicates, 8 IntricatePredicates, 0 DeprecatedPredicates, 115 ImplicationChecksByTransitivity, 5.5s TimeCoverageRelationStatistics Valid=106, Invalid=453, Unknown=25, NotChecked=408, Total=992 [2024-11-13 12:56:07,767 INFO L432 NwaCegarLoop]: 857 mSDtfsCounter, 1117 mSDsluCounter, 6731 mSDsCounter, 0 mSdLazyCounter, 6479 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 64.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1129 SdHoareTripleChecker+Valid, 7588 SdHoareTripleChecker+Invalid, 6498 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 6479 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 66.5s IncrementalHoareTripleChecker+Time [2024-11-13 12:56:07,767 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1129 Valid, 7588 Invalid, 6498 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [19 Valid, 6479 Invalid, 0 Unknown, 0 Unchecked, 66.5s Time] [2024-11-13 12:56:07,770 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1851 states. [2024-11-13 12:56:07,789 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1851 to 1849. [2024-11-13 12:56:07,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1849 states, 1268 states have (on average 1.6845425867507886) internal successors, (2136), 1833 states have internal predecessors, (2136), 17 states have call successors, (17), 5 states have call predecessors, (17), 5 states have return successors, (17), 11 states have call predecessors, (17), 15 states have call successors, (17) [2024-11-13 12:56:07,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1849 states to 1849 states and 2170 transitions. [2024-11-13 12:56:07,796 INFO L78 Accepts]: Start accepts. Automaton has 1849 states and 2170 transitions. Word has length 117 [2024-11-13 12:56:07,797 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 12:56:07,797 INFO L471 AbstractCegarLoop]: Abstraction has 1849 states and 2170 transitions. [2024-11-13 12:56:07,797 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 17 states have (on average 5.529411764705882) internal successors, (94), 20 states have internal predecessors, (94), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-13 12:56:07,797 INFO L276 IsEmpty]: Start isEmpty. Operand 1849 states and 2170 transitions. [2024-11-13 12:56:07,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2024-11-13 12:56:07,798 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 12:56:07,799 INFO L215 NwaCegarLoop]: trace histogram [44, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 12:56:07,822 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b71100f-0ab2-467a-b5b1-1d0cc06159cd/bin/uautomizer-verify-qhAvR1uOyd/cvc4 --incremental --print-success --lang smt (29)] Forceful destruction successful, exit code 0 [2024-11-13 12:56:08,033 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b71100f-0ab2-467a-b5b1-1d0cc06159cd/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Ended with exit code 0 [2024-11-13 12:56:08,199 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b71100f-0ab2-467a-b5b1-1d0cc06159cd/bin/uautomizer-verify-qhAvR1uOyd/cvc4 --incremental --print-success --lang smt,28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b71100f-0ab2-467a-b5b1-1d0cc06159cd/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 12:56:08,200 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr79REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 814 more)] === [2024-11-13 12:56:08,200 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 12:56:08,201 INFO L85 PathProgramCache]: Analyzing trace with hash 1804138373, now seen corresponding path program 1 times [2024-11-13 12:56:08,201 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 12:56:08,202 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1983344360] [2024-11-13 12:56:08,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:56:08,202 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 12:56:08,202 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b71100f-0ab2-467a-b5b1-1d0cc06159cd/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 12:56:08,204 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b71100f-0ab2-467a-b5b1-1d0cc06159cd/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 12:56:08,206 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b71100f-0ab2-467a-b5b1-1d0cc06159cd/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Waiting until timeout for monitored process [2024-11-13 12:56:08,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:56:08,941 INFO L255 TraceCheckSpWp]: Trace formula consists of 824 conjuncts, 113 conjuncts are in the unsatisfiable core [2024-11-13 12:56:08,954 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 12:56:10,099 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 [2024-11-13 12:56:10,201 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2024-11-13 12:56:10,202 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13 [2024-11-13 12:56:10,337 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2024-11-13 12:56:10,416 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-13 12:56:10,974 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 10 [2024-11-13 12:56:10,995 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2024-11-13 12:56:15,129 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-13 12:56:15,129 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 62 treesize of output 57 [2024-11-13 12:56:15,151 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 13 [2024-11-13 12:56:15,741 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-13 12:56:15,742 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 62 treesize of output 57 [2024-11-13 12:56:15,801 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 13 [2024-11-13 12:56:16,310 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-13 12:56:16,310 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 62 treesize of output 57 [2024-11-13 12:56:16,370 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 13 [2024-11-13 12:56:16,472 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 13 [2024-11-13 12:56:16,492 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2024-11-13 12:56:16,695 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 946 trivial. 0 not checked. [2024-11-13 12:56:16,696 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 12:56:17,300 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (and (forall ((v_ArrVal_5110 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (select (select (store |c_#memory_$Pointer$#2.offset| |c_ULTIMATE.start_main_#t~mem35#1.base| v_ArrVal_5110) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (bvule (bvadd (_ bv8 32) .cse0) (bvadd (_ bv12 32) .cse0)))) (forall ((v_ArrVal_5110 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_5111 (Array (_ BitVec 32) (_ BitVec 32)))) (bvule (bvadd (_ bv12 32) (select (select (store |c_#memory_$Pointer$#2.offset| |c_ULTIMATE.start_main_#t~mem35#1.base| v_ArrVal_5110) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)) (select |c_#length| (select (select (store |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_#t~mem35#1.base| v_ArrVal_5111) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))))) is different from false [2024-11-13 12:56:17,385 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse2 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (let ((.cse1 (select (select |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (and (forall ((v_ArrVal_5110 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (select (select (store |c_#memory_$Pointer$#2.offset| .cse1 v_ArrVal_5110) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (bvule (bvadd (_ bv8 32) .cse0) (bvadd (_ bv12 32) .cse0)))) (forall ((v_ArrVal_5110 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_5111 (Array (_ BitVec 32) (_ BitVec 32)))) (bvule (bvadd (_ bv12 32) (select (select (store |c_#memory_$Pointer$#2.offset| .cse1 v_ArrVal_5110) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2)) (select |c_#length| (select (select (store |c_#memory_$Pointer$#2.base| .cse1 v_ArrVal_5111) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))))))) is different from false [2024-11-13 12:56:17,588 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (and (forall ((v_ArrVal_5108 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_5109 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_5110 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_5111 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse2 (store |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_#t~mem34#1.base| v_ArrVal_5109))) (let ((.cse0 (select (select .cse2 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (bvule (bvadd (select (select (store (store |c_#memory_$Pointer$#2.offset| |c_ULTIMATE.start_main_#t~mem34#1.base| v_ArrVal_5108) .cse0 v_ArrVal_5110) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) (_ bv12 32)) (select |c_#length| (select (select (store .cse2 .cse0 v_ArrVal_5111) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))))) (forall ((v_ArrVal_5108 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_5109 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_5110 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse3 (select (select (store (store |c_#memory_$Pointer$#2.offset| |c_ULTIMATE.start_main_#t~mem34#1.base| v_ArrVal_5108) (select (select (store |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_#t~mem34#1.base| v_ArrVal_5109) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_5110) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (bvule (bvadd .cse3 (_ bv8 32)) (bvadd .cse3 (_ bv12 32))))))) is different from false [2024-11-13 12:56:17,761 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse2 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (let ((.cse1 (select (select |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (and (forall ((v_ArrVal_5108 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_5109 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_5110 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (select (select (store (store |c_#memory_$Pointer$#2.offset| .cse1 v_ArrVal_5108) (select (select (store |c_#memory_$Pointer$#2.base| .cse1 v_ArrVal_5109) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2) v_ArrVal_5110) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (bvule (bvadd (_ bv8 32) .cse0) (bvadd (_ bv12 32) .cse0)))) (forall ((v_ArrVal_5108 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_5109 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_5110 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_5111 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse4 (store |c_#memory_$Pointer$#2.base| .cse1 v_ArrVal_5109))) (let ((.cse3 (select (select .cse4 |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (bvule (bvadd (_ bv12 32) (select (select (store (store |c_#memory_$Pointer$#2.offset| .cse1 v_ArrVal_5108) .cse3 v_ArrVal_5110) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2)) (select |c_#length| (select (select (store .cse4 .cse3 v_ArrVal_5111) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))))))))) is different from false [2024-11-13 12:56:21,540 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse3 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (and (forall ((v_ArrVal_5108 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_5109 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_5202 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_5203 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_5110 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (select (select (let ((.cse2 (store |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_#t~mem32#1.base| v_ArrVal_5202))) (let ((.cse1 (select (select .cse2 |c_ULTIMATE.start_main_~user~0#1.base|) .cse3))) (store (store (store |c_#memory_$Pointer$#2.offset| |c_ULTIMATE.start_main_#t~mem32#1.base| v_ArrVal_5203) .cse1 v_ArrVal_5108) (select (select (store .cse2 .cse1 v_ArrVal_5109) |c_ULTIMATE.start_main_~user~0#1.base|) .cse3) v_ArrVal_5110))) |c_ULTIMATE.start_main_~user~0#1.base|) .cse3))) (bvule (bvadd (_ bv8 32) .cse0) (bvadd (_ bv12 32) .cse0)))) (forall ((v_ArrVal_5108 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_5109 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_5202 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_5203 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_5110 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_5111 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse7 (store |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_#t~mem32#1.base| v_ArrVal_5202))) (let ((.cse4 (select (select .cse7 |c_ULTIMATE.start_main_~user~0#1.base|) .cse3))) (let ((.cse6 (store .cse7 .cse4 v_ArrVal_5109))) (let ((.cse5 (select (select .cse6 |c_ULTIMATE.start_main_~user~0#1.base|) .cse3))) (bvule (bvadd (_ bv12 32) (select (select (store (store (store |c_#memory_$Pointer$#2.offset| |c_ULTIMATE.start_main_#t~mem32#1.base| v_ArrVal_5203) .cse4 v_ArrVal_5108) .cse5 v_ArrVal_5110) |c_ULTIMATE.start_main_~user~0#1.base|) .cse3)) (select |c_#length| (select (select (store .cse6 .cse5 v_ArrVal_5111) |c_ULTIMATE.start_main_~user~0#1.base|) .cse3)))))))))) is different from false [2024-11-13 12:56:21,561 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 12:56:21,561 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1983344360] [2024-11-13 12:56:21,561 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1983344360] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 12:56:21,561 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1427850932] [2024-11-13 12:56:21,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:56:21,562 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-13 12:56:21,562 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b71100f-0ab2-467a-b5b1-1d0cc06159cd/bin/uautomizer-verify-qhAvR1uOyd/cvc4 [2024-11-13 12:56:21,563 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b71100f-0ab2-467a-b5b1-1d0cc06159cd/bin/uautomizer-verify-qhAvR1uOyd/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-13 12:56:21,565 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b71100f-0ab2-467a-b5b1-1d0cc06159cd/bin/uautomizer-verify-qhAvR1uOyd/cvc4 --incremental --print-success --lang smt (31)] Waiting until timeout for monitored process [2024-11-13 12:56:44,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:56:44,112 INFO L255 TraceCheckSpWp]: Trace formula consists of 824 conjuncts, 119 conjuncts are in the unsatisfiable core [2024-11-13 12:56:44,126 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 12:56:44,153 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 [2024-11-13 12:56:46,729 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2024-11-13 12:56:46,729 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13 [2024-11-13 12:56:46,830 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-11-13 12:56:47,278 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-11-13 12:56:47,359 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-11-13 12:56:48,566 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 10 [2024-11-13 12:56:48,589 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2024-11-13 12:56:53,957 INFO L349 Elim1Store]: treesize reduction 19, result has 20.8 percent of original size [2024-11-13 12:56:53,958 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 50 treesize of output 45 [2024-11-13 12:56:54,041 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 11 [2024-11-13 12:56:55,105 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 35 [2024-11-13 12:56:55,226 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 11 [2024-11-13 12:56:56,804 INFO L349 Elim1Store]: treesize reduction 27, result has 15.6 percent of original size [2024-11-13 12:56:56,805 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 61 treesize of output 50 [2024-11-13 12:56:56,829 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2024-11-13 12:56:56,883 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 11 [2024-11-13 12:56:57,096 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2024-11-13 12:56:57,134 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2024-11-13 12:56:57,189 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 946 trivial. 0 not checked. [2024-11-13 12:56:57,189 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 12:56:57,477 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (and (forall ((v_ArrVal_5674 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (select (select (store |c_#memory_$Pointer$#2.offset| |c_ULTIMATE.start_main_#t~mem35#1.base| v_ArrVal_5674) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (bvule (bvadd .cse0 (_ bv8 32)) (bvadd .cse0 (_ bv12 32))))) (forall ((v_ArrVal_5674 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_5675 (Array (_ BitVec 32) (_ BitVec 32)))) (bvule (bvadd (select (select (store |c_#memory_$Pointer$#2.offset| |c_ULTIMATE.start_main_#t~mem35#1.base| v_ArrVal_5674) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) (_ bv12 32)) (select |c_#length| (select (select (store |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_#t~mem35#1.base| v_ArrVal_5675) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))))) is different from false [2024-11-13 12:56:57,579 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse2 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (let ((.cse1 (select (select |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (and (forall ((v_ArrVal_5674 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (select (select (store |c_#memory_$Pointer$#2.offset| .cse1 v_ArrVal_5674) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (bvule (bvadd .cse0 (_ bv8 32)) (bvadd .cse0 (_ bv12 32))))) (forall ((v_ArrVal_5674 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_5675 (Array (_ BitVec 32) (_ BitVec 32)))) (bvule (bvadd (select (select (store |c_#memory_$Pointer$#2.offset| .cse1 v_ArrVal_5674) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2) (_ bv12 32)) (select |c_#length| (select (select (store |c_#memory_$Pointer$#2.base| .cse1 v_ArrVal_5675) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))))))) is different from false [2024-11-13 12:56:57,813 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse2 (store |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_#t~mem34#1.base| (store (select |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_#t~mem34#1.base|) (bvadd (_ bv16 32) |c_ULTIMATE.start_main_#t~mem34#1.offset|) |c_ULTIMATE.start_main_~user~0#1.base|))) (.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (let ((.cse0 (select (select .cse2 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (and (forall ((v_ArrVal_5674 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_5675 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_5673 (Array (_ BitVec 32) (_ BitVec 32)))) (bvule (bvadd (_ bv12 32) (select (select (store (store |c_#memory_$Pointer$#2.offset| |c_ULTIMATE.start_main_#t~mem34#1.base| v_ArrVal_5673) .cse0 v_ArrVal_5674) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)) (select |c_#length| (select (select (store .cse2 .cse0 v_ArrVal_5675) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))) (forall ((v_ArrVal_5674 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_5673 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse3 (select (select (store (store |c_#memory_$Pointer$#2.offset| |c_ULTIMATE.start_main_#t~mem34#1.base| v_ArrVal_5673) .cse0 v_ArrVal_5674) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (bvule (bvadd (_ bv8 32) .cse3) (bvadd (_ bv12 32) .cse3))))))) is different from false [2024-11-13 12:56:58,018 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse2 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (let ((.cse0 (select (select |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (let ((.cse3 (store |c_#memory_$Pointer$#2.base| .cse0 (store (select |c_#memory_$Pointer$#2.base| .cse0) (bvadd (_ bv16 32) (select (select |c_#memory_$Pointer$#2.offset| |c_ULTIMATE.start_main_~user~0#1.base|) .cse2)) |c_ULTIMATE.start_main_~user~0#1.base|)))) (let ((.cse1 (select (select .cse3 |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (and (forall ((v_ArrVal_5674 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_5675 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_5673 (Array (_ BitVec 32) (_ BitVec 32)))) (bvule (bvadd (_ bv12 32) (select (select (store (store |c_#memory_$Pointer$#2.offset| .cse0 v_ArrVal_5673) .cse1 v_ArrVal_5674) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2)) (select |c_#length| (select (select (store .cse3 .cse1 v_ArrVal_5675) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2)))) (forall ((v_ArrVal_5674 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_5673 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse4 (select (select (store (store |c_#memory_$Pointer$#2.offset| .cse0 v_ArrVal_5673) .cse1 v_ArrVal_5674) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (bvule (bvadd (_ bv8 32) .cse4) (bvadd (_ bv12 32) .cse4))))))))) is different from false [2024-11-13 12:57:02,538 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse3 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (and (forall ((v_ArrVal_5766 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_5767 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_5674 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_5675 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_5673 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse5 (store |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_#t~mem32#1.base| v_ArrVal_5767))) (let ((.cse1 (select (select .cse5 |c_ULTIMATE.start_main_~user~0#1.base|) .cse3)) (.cse0 (store |c_#memory_$Pointer$#2.offset| |c_ULTIMATE.start_main_#t~mem32#1.base| v_ArrVal_5766))) (let ((.cse4 (store .cse5 .cse1 (store (select .cse5 .cse1) (bvadd (_ bv16 32) (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse3)) |c_ULTIMATE.start_main_~user~0#1.base|)))) (let ((.cse2 (select (select .cse4 |c_ULTIMATE.start_main_~user~0#1.base|) .cse3))) (bvule (bvadd (_ bv12 32) (select (select (store (store .cse0 .cse1 v_ArrVal_5673) .cse2 v_ArrVal_5674) |c_ULTIMATE.start_main_~user~0#1.base|) .cse3)) (select |c_#length| (select (select (store .cse4 .cse2 v_ArrVal_5675) |c_ULTIMATE.start_main_~user~0#1.base|) .cse3)))))))) (forall ((v_ArrVal_5766 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_5767 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_5674 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_5673 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse6 (select (select (let ((.cse9 (store |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_#t~mem32#1.base| v_ArrVal_5767))) (let ((.cse8 (select (select .cse9 |c_ULTIMATE.start_main_~user~0#1.base|) .cse3)) (.cse7 (store |c_#memory_$Pointer$#2.offset| |c_ULTIMATE.start_main_#t~mem32#1.base| v_ArrVal_5766))) (store (store .cse7 .cse8 v_ArrVal_5673) (select (select (store .cse9 .cse8 (store (select .cse9 .cse8) (bvadd (_ bv16 32) (select (select .cse7 |c_ULTIMATE.start_main_~user~0#1.base|) .cse3)) |c_ULTIMATE.start_main_~user~0#1.base|)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse3) v_ArrVal_5674))) |c_ULTIMATE.start_main_~user~0#1.base|) .cse3))) (bvule (bvadd (_ bv8 32) .cse6) (bvadd (_ bv12 32) .cse6)))))) is different from false [2024-11-13 12:57:02,857 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1427850932] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 12:57:02,857 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-13 12:57:02,857 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 11] total 17 [2024-11-13 12:57:02,857 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1234938766] [2024-11-13 12:57:02,857 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-13 12:57:02,858 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-13 12:57:02,858 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 12:57:02,858 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-13 12:57:02,858 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=324, Unknown=10, NotChecked=450, Total=870 [2024-11-13 12:57:02,859 INFO L87 Difference]: Start difference. First operand 1849 states and 2170 transitions. Second operand has 18 states, 15 states have (on average 9.133333333333333) internal successors, (137), 18 states have internal predecessors, (137), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-13 12:59:17,209 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 12:59:17,210 INFO L93 Difference]: Finished difference Result 2524 states and 2902 transitions. [2024-11-13 12:59:17,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-13 12:59:17,210 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 15 states have (on average 9.133333333333333) internal successors, (137), 18 states have internal predecessors, (137), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 117 [2024-11-13 12:59:17,211 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 12:59:17,218 INFO L225 Difference]: With dead ends: 2524 [2024-11-13 12:59:17,218 INFO L226 Difference]: Without dead ends: 2524 [2024-11-13 12:59:17,218 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 259 GetRequests, 221 SyntacticMatches, 3 SemanticMatches, 35 ConstructedPredicates, 10 IntricatePredicates, 0 DeprecatedPredicates, 130 ImplicationChecksByTransitivity, 8.1s TimeCoverageRelationStatistics Valid=150, Invalid=582, Unknown=10, NotChecked=590, Total=1332 [2024-11-13 12:59:17,219 INFO L432 NwaCegarLoop]: 865 mSDtfsCounter, 1825 mSDsluCounter, 6839 mSDsCounter, 0 mSdLazyCounter, 12184 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 127.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1843 SdHoareTripleChecker+Valid, 7704 SdHoareTripleChecker+Invalid, 12197 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 12184 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 132.0s IncrementalHoareTripleChecker+Time [2024-11-13 12:59:17,219 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1843 Valid, 7704 Invalid, 12197 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [13 Valid, 12184 Invalid, 0 Unknown, 0 Unchecked, 132.0s Time] [2024-11-13 12:59:17,222 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2524 states. [2024-11-13 12:59:17,244 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2524 to 1848. [2024-11-13 12:59:17,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1848 states, 1268 states have (on average 1.6829652996845426) internal successors, (2134), 1832 states have internal predecessors, (2134), 17 states have call successors, (17), 5 states have call predecessors, (17), 5 states have return successors, (17), 11 states have call predecessors, (17), 15 states have call successors, (17) [2024-11-13 12:59:17,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1848 states to 1848 states and 2168 transitions. [2024-11-13 12:59:17,251 INFO L78 Accepts]: Start accepts. Automaton has 1848 states and 2168 transitions. Word has length 117 [2024-11-13 12:59:17,251 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 12:59:17,251 INFO L471 AbstractCegarLoop]: Abstraction has 1848 states and 2168 transitions. [2024-11-13 12:59:17,252 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 15 states have (on average 9.133333333333333) internal successors, (137), 18 states have internal predecessors, (137), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-13 12:59:17,252 INFO L276 IsEmpty]: Start isEmpty. Operand 1848 states and 2168 transitions. [2024-11-13 12:59:17,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2024-11-13 12:59:17,253 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 12:59:17,253 INFO L215 NwaCegarLoop]: trace histogram [44, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 12:59:17,293 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b71100f-0ab2-467a-b5b1-1d0cc06159cd/bin/uautomizer-verify-qhAvR1uOyd/cvc4 --incremental --print-success --lang smt (31)] Forceful destruction successful, exit code 0 [2024-11-13 12:59:17,492 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b71100f-0ab2-467a-b5b1-1d0cc06159cd/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Ended with exit code 0 [2024-11-13 12:59:17,654 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b71100f-0ab2-467a-b5b1-1d0cc06159cd/bin/uautomizer-verify-qhAvR1uOyd/cvc4 --incremental --print-success --lang smt,30 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b71100f-0ab2-467a-b5b1-1d0cc06159cd/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 12:59:17,655 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr82REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 814 more)] === [2024-11-13 12:59:17,655 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 12:59:17,655 INFO L85 PathProgramCache]: Analyzing trace with hash -134191048, now seen corresponding path program 1 times [2024-11-13 12:59:17,656 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 12:59:17,656 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [852110486] [2024-11-13 12:59:17,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:59:17,657 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 12:59:17,657 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b71100f-0ab2-467a-b5b1-1d0cc06159cd/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 12:59:17,659 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b71100f-0ab2-467a-b5b1-1d0cc06159cd/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 12:59:17,661 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b71100f-0ab2-467a-b5b1-1d0cc06159cd/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Waiting until timeout for monitored process [2024-11-13 12:59:18,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:59:18,585 INFO L255 TraceCheckSpWp]: Trace formula consists of 853 conjuncts, 62 conjuncts are in the unsatisfiable core [2024-11-13 12:59:18,593 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 12:59:18,611 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 [2024-11-13 12:59:19,722 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2024-11-13 12:59:19,723 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13 [2024-11-13 12:59:19,859 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-13 12:59:22,998 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-13 12:59:22,998 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 44 treesize of output 43 [2024-11-13 12:59:23,621 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-13 12:59:23,622 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 44 treesize of output 43 [2024-11-13 12:59:24,097 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-13 12:59:24,097 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 44 treesize of output 43 [2024-11-13 12:59:24,600 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-13 12:59:24,600 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 44 treesize of output 43 [2024-11-13 12:59:24,697 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 15 [2024-11-13 12:59:24,897 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 946 trivial. 0 not checked. [2024-11-13 12:59:24,897 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 12:59:25,153 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_6206 (Array (_ BitVec 32) (_ BitVec 32)))) (= (_ bv0 1) (bvadd (_ bv1 1) (select |c_#valid| (select (select (store |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_#t~mem36#1.base| v_ArrVal_6206) |c_ULTIMATE.start_main_~user~0#1.base|) (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|)))))) is different from false [2024-11-13 12:59:25,199 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_6206 (Array (_ BitVec 32) (_ BitVec 32)))) (= (bvadd (_ bv1 1) (select |c_#valid| (let ((.cse0 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (select (select (store |c_#memory_$Pointer$#2.base| (select (select |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse0) v_ArrVal_6206) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0)))) (_ bv0 1))) is different from false [2024-11-13 12:59:25,268 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_6206 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6205 (Array (_ BitVec 32) (_ BitVec 32)))) (= (_ bv0 1) (bvadd (_ bv1 1) (select |c_#valid| (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (select (select (let ((.cse0 (store |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_#t~mem35#1.base| v_ArrVal_6205))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_6206)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))))) is different from false [2024-11-13 12:59:25,315 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_6206 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6205 (Array (_ BitVec 32) (_ BitVec 32)))) (= (_ bv0 1) (bvadd (_ bv1 1) (select |c_#valid| (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (select (select (let ((.cse0 (store |c_#memory_$Pointer$#2.base| (select (select |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_6205))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_6206)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))))) is different from false [2024-11-13 12:59:25,386 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_6206 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6204 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6205 (Array (_ BitVec 32) (_ BitVec 32)))) (= (_ bv0 1) (bvadd (_ bv1 1) (select |c_#valid| (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (select (select (let ((.cse0 (let ((.cse2 (store |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_#t~mem34#1.base| v_ArrVal_6204))) (store .cse2 (select (select .cse2 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_6205)))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_6206)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))))) is different from false [2024-11-13 12:59:25,436 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_6206 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6204 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6205 (Array (_ BitVec 32) (_ BitVec 32)))) (= (_ bv0 1) (bvadd (_ bv1 1) (select |c_#valid| (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (select (select (let ((.cse0 (let ((.cse2 (store |c_#memory_$Pointer$#2.base| (select (select |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_6204))) (store .cse2 (select (select .cse2 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_6205)))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_6206)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))))) is different from false [2024-11-13 12:59:27,002 INFO L349 Elim1Store]: treesize reduction 7, result has 93.2 percent of original size [2024-11-13 12:59:27,002 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 109 treesize of output 108 [2024-11-13 12:59:27,048 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_6252 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6206 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6204 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6205 (Array (_ BitVec 32) (_ BitVec 32)))) (= |c_ULTIMATE.start_main_#t~mem32#1.base| (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (select (select (let ((.cse0 (let ((.cse2 (let ((.cse3 (store |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_#t~mem32#1.base| v_ArrVal_6252))) (store .cse3 (select (select .cse3 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_6204)))) (store .cse2 (select (select .cse2 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_6205)))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_6206)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))) is different from false [2024-11-13 12:59:27,060 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 12:59:27,060 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [852110486] [2024-11-13 12:59:27,060 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [852110486] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 12:59:27,060 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1675827196] [2024-11-13 12:59:27,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:59:27,060 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-13 12:59:27,060 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b71100f-0ab2-467a-b5b1-1d0cc06159cd/bin/uautomizer-verify-qhAvR1uOyd/cvc4 [2024-11-13 12:59:27,063 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b71100f-0ab2-467a-b5b1-1d0cc06159cd/bin/uautomizer-verify-qhAvR1uOyd/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-13 12:59:27,066 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b71100f-0ab2-467a-b5b1-1d0cc06159cd/bin/uautomizer-verify-qhAvR1uOyd/cvc4 --incremental --print-success --lang smt (33)] Waiting until timeout for monitored process [2024-11-13 12:59:35,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:59:35,284 INFO L255 TraceCheckSpWp]: Trace formula consists of 853 conjuncts, 66 conjuncts are in the unsatisfiable core [2024-11-13 12:59:35,294 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 12:59:35,329 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 [2024-11-13 12:59:36,445 INFO L349 Elim1Store]: treesize reduction 22, result has 35.3 percent of original size [2024-11-13 12:59:36,445 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 19 treesize of output 27 [2024-11-13 12:59:36,815 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-13 12:59:37,698 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 12 [2024-11-13 12:59:43,103 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-13 12:59:43,104 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 44 treesize of output 43 [2024-11-13 12:59:43,962 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-13 12:59:43,962 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 44 treesize of output 43 [2024-11-13 12:59:44,607 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-13 12:59:44,608 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 44 treesize of output 43 [2024-11-13 12:59:45,253 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-13 12:59:45,253 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 44 treesize of output 43 [2024-11-13 12:59:45,390 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 15 [2024-11-13 12:59:45,790 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 946 trivial. 0 not checked. [2024-11-13 12:59:45,791 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 12:59:46,380 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_6692 (Array (_ BitVec 32) (_ BitVec 32)))) (= (_ bv0 1) (bvadd (_ bv1 1) (select |c_#valid| (let ((.cse0 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (select (select (store |c_#memory_$Pointer$#2.base| (select (select |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse0) v_ArrVal_6692) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0)))))) is different from false [2024-11-13 12:59:46,446 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_6691 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6692 (Array (_ BitVec 32) (_ BitVec 32)))) (= (_ bv0 1) (bvadd (_ bv1 1) (select |c_#valid| (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (select (select (let ((.cse0 (store |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_#t~mem35#1.base| v_ArrVal_6691))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_6692)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))))) is different from false [2024-11-13 12:59:46,498 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_6691 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6692 (Array (_ BitVec 32) (_ BitVec 32)))) (= (bvadd (_ bv1 1) (select |c_#valid| (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (select (select (let ((.cse0 (store |c_#memory_$Pointer$#2.base| (select (select |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_6691))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_6692)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))) (_ bv0 1))) is different from false [2024-11-13 12:59:46,567 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_6690 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6691 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6692 (Array (_ BitVec 32) (_ BitVec 32)))) (= (_ bv0 1) (bvadd (select |c_#valid| (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (select (select (let ((.cse0 (let ((.cse2 (store |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_#t~mem34#1.base| v_ArrVal_6690))) (store .cse2 (select (select .cse2 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_6691)))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_6692)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (_ bv1 1)))) is different from false [2024-11-13 12:59:46,631 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_6690 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6691 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6692 (Array (_ BitVec 32) (_ BitVec 32)))) (= (_ bv0 1) (bvadd (_ bv1 1) (select |c_#valid| (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (select (select (let ((.cse0 (let ((.cse2 (store |c_#memory_$Pointer$#2.base| (select (select |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_6690))) (store .cse2 (select (select .cse2 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_6691)))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_6692)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))))) is different from false [2024-11-13 12:59:48,011 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_6738 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6690 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6691 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6692 (Array (_ BitVec 32) (_ BitVec 32)))) (= (bvadd (_ bv1 1) (select |c_#valid| (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (select (select (let ((.cse0 (let ((.cse2 (let ((.cse3 (store |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_#t~mem32#1.base| v_ArrVal_6738))) (store .cse3 (select (select .cse3 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_6690)))) (store .cse2 (select (select .cse2 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_6691)))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_6692)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))) (_ bv0 1))) is different from false [2024-11-13 12:59:48,024 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1675827196] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 12:59:48,024 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-13 12:59:48,024 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 11] total 22 [2024-11-13 12:59:48,024 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [430324213] [2024-11-13 12:59:48,025 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-13 12:59:48,025 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-13 12:59:48,025 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 12:59:48,026 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-13 12:59:48,026 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=122, Invalid=507, Unknown=23, NotChecked=754, Total=1406 [2024-11-13 12:59:48,026 INFO L87 Difference]: Start difference. First operand 1848 states and 2168 transitions. Second operand has 23 states, 20 states have (on average 5.0) internal successors, (100), 22 states have internal predecessors, (100), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2)