./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memcleanup.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_nondet_test3-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (memcleanup) Using default analysis Version a0165632 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2317ccc4-f6de-4123-b8bd-49374e0558f2/bin/uautomizer-verify-jihMAELWvX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2317ccc4-f6de-4123-b8bd-49374e0558f2/bin/uautomizer-verify-jihMAELWvX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2317ccc4-f6de-4123-b8bd-49374e0558f2/bin/uautomizer-verify-jihMAELWvX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2317ccc4-f6de-4123-b8bd-49374e0558f2/bin/uautomizer-verify-jihMAELWvX/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_nondet_test3-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2317ccc4-f6de-4123-b8bd-49374e0558f2/bin/uautomizer-verify-jihMAELWvX/config/svcomp-MemCleanup-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2317ccc4-f6de-4123-b8bd-49374e0558f2/bin/uautomizer-verify-jihMAELWvX --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-memcleanup) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash be29e8161f6a6b8e8b181f151bf5388e6a9e3237ae426f572d4ceda403cee9b8 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-08 18:31:07,538 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 18:31:07,631 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2317ccc4-f6de-4123-b8bd-49374e0558f2/bin/uautomizer-verify-jihMAELWvX/config/svcomp-MemCleanup-32bit-Automizer_Default.epf [2024-11-08 18:31:07,638 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 18:31:07,641 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-08 18:31:07,675 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 18:31:07,677 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-08 18:31:07,678 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-08 18:31:07,679 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-08 18:31:07,679 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-08 18:31:07,680 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 18:31:07,680 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-08 18:31:07,681 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 18:31:07,682 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 18:31:07,684 INFO L153 SettingsManager]: * Use SBE=true [2024-11-08 18:31:07,685 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 18:31:07,685 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 18:31:07,685 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-08 18:31:07,686 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-08 18:31:07,686 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-08 18:31:07,686 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 18:31:07,691 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 18:31:07,691 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-08 18:31:07,691 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-08 18:31:07,692 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 18:31:07,692 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 18:31:07,692 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-08 18:31:07,692 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 18:31:07,693 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-08 18:31:07,693 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-08 18:31:07,693 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 18:31:07,693 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 18:31:07,694 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 18:31:07,694 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-08 18:31:07,695 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-08 18:31:07,696 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-08 18:31:07,696 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 18:31:07,697 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 18:31:07,697 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 18:31:07,697 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-08 18:31:07,698 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-08 18:31:07,699 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-08 18:31:07,699 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-08 18:31:07,700 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-08 18:31:07,700 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-08 18:31:07,700 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2317ccc4-f6de-4123-b8bd-49374e0558f2/bin/uautomizer-verify-jihMAELWvX/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2317ccc4-f6de-4123-b8bd-49374e0558f2/bin/uautomizer-verify-jihMAELWvX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-memcleanup) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> be29e8161f6a6b8e8b181f151bf5388e6a9e3237ae426f572d4ceda403cee9b8 [2024-11-08 18:31:07,997 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 18:31:08,033 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 18:31:08,038 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 18:31:08,039 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 18:31:08,040 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 18:31:08,043 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2317ccc4-f6de-4123-b8bd-49374e0558f2/bin/uautomizer-verify-jihMAELWvX/../../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_nondet_test3-2.i Unable to find full path for "g++" [2024-11-08 18:31:10,139 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 18:31:10,442 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 18:31:10,443 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2317ccc4-f6de-4123-b8bd-49374e0558f2/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_nondet_test3-2.i [2024-11-08 18:31:10,464 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2317ccc4-f6de-4123-b8bd-49374e0558f2/bin/uautomizer-verify-jihMAELWvX/data/ac75c8aff/028a8ce142414bce96bed620240725f7/FLAG8eef95c6b [2024-11-08 18:31:10,481 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2317ccc4-f6de-4123-b8bd-49374e0558f2/bin/uautomizer-verify-jihMAELWvX/data/ac75c8aff/028a8ce142414bce96bed620240725f7 [2024-11-08 18:31:10,483 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 18:31:10,485 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 18:31:10,487 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 18:31:10,487 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 18:31:10,495 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 18:31:10,497 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 06:31:10" (1/1) ... [2024-11-08 18:31:10,500 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1d8423e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:31:10, skipping insertion in model container [2024-11-08 18:31:10,501 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 06:31:10" (1/1) ... [2024-11-08 18:31:10,574 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 18:31:11,137 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-08 18:31:11,208 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-08 18:31:11,220 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-08 18:31:11,224 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-08 18:31:11,239 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-08 18:31:11,301 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-08 18:31:11,301 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-08 18:31:11,305 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-08 18:31:11,305 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-08 18:31:11,309 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-08 18:31:11,311 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-08 18:31:11,313 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-08 18:31:11,315 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-08 18:31:11,325 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-08 18:31:11,328 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-08 18:31:11,331 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-08 18:31:11,337 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-08 18:31:11,338 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-08 18:31:11,343 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-08 18:31:11,348 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-08 18:31:11,368 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 18:31:11,387 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) [2024-11-08 18:31:11,389 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@24b7305b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:31:11, skipping insertion in model container [2024-11-08 18:31:11,389 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 18:31:11,390 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2024-11-08 18:31:11,394 INFO L158 Benchmark]: Toolchain (without parser) took 906.03ms. Allocated memory is still 169.9MB. Free memory was 124.8MB in the beginning and 100.6MB in the end (delta: 24.3MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2024-11-08 18:31:11,395 INFO L158 Benchmark]: CDTParser took 0.38ms. Allocated memory is still 98.6MB. Free memory is still 51.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 18:31:11,396 INFO L158 Benchmark]: CACSL2BoogieTranslator took 903.21ms. Allocated memory is still 169.9MB. Free memory was 124.4MB in the beginning and 100.6MB in the end (delta: 23.9MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2024-11-08 18:31:11,397 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.38ms. Allocated memory is still 98.6MB. Free memory is still 51.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 903.21ms. Allocated memory is still 169.9MB. Free memory was 124.4MB in the beginning and 100.6MB in the end (delta: 23.9MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 750]: Unsupported Syntax Found a cast between two array/pointer types of different sizes while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2317ccc4-f6de-4123-b8bd-49374e0558f2/bin/uautomizer-verify-jihMAELWvX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2317ccc4-f6de-4123-b8bd-49374e0558f2/bin/uautomizer-verify-jihMAELWvX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2317ccc4-f6de-4123-b8bd-49374e0558f2/bin/uautomizer-verify-jihMAELWvX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2317ccc4-f6de-4123-b8bd-49374e0558f2/bin/uautomizer-verify-jihMAELWvX/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_nondet_test3-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2317ccc4-f6de-4123-b8bd-49374e0558f2/bin/uautomizer-verify-jihMAELWvX/config/svcomp-MemCleanup-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2317ccc4-f6de-4123-b8bd-49374e0558f2/bin/uautomizer-verify-jihMAELWvX --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-memcleanup) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash be29e8161f6a6b8e8b181f151bf5388e6a9e3237ae426f572d4ceda403cee9b8 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-08 18:31:14,062 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 18:31:14,186 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2317ccc4-f6de-4123-b8bd-49374e0558f2/bin/uautomizer-verify-jihMAELWvX/config/svcomp-MemCleanup-32bit-Automizer_Bitvector.epf [2024-11-08 18:31:14,193 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 18:31:14,194 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-08 18:31:14,235 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 18:31:14,238 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-08 18:31:14,238 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-08 18:31:14,239 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-08 18:31:14,240 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-08 18:31:14,241 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 18:31:14,241 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-08 18:31:14,242 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 18:31:14,242 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 18:31:14,243 INFO L153 SettingsManager]: * Use SBE=true [2024-11-08 18:31:14,245 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 18:31:14,245 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 18:31:14,245 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-08 18:31:14,246 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-08 18:31:14,246 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-08 18:31:14,246 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 18:31:14,251 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 18:31:14,251 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-08 18:31:14,252 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-08 18:31:14,252 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 18:31:14,252 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 18:31:14,252 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-08 18:31:14,252 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-08 18:31:14,253 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 18:31:14,253 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-08 18:31:14,253 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-08 18:31:14,253 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-08 18:31:14,254 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 18:31:14,254 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 18:31:14,254 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 18:31:14,254 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-08 18:31:14,254 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-08 18:31:14,256 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-08 18:31:14,257 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 18:31:14,257 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 18:31:14,257 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 18:31:14,258 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2024-11-08 18:31:14,258 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-08 18:31:14,258 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-08 18:31:14,259 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-08 18:31:14,259 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-08 18:31:14,259 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-08 18:31:14,260 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2317ccc4-f6de-4123-b8bd-49374e0558f2/bin/uautomizer-verify-jihMAELWvX/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2317ccc4-f6de-4123-b8bd-49374e0558f2/bin/uautomizer-verify-jihMAELWvX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-memcleanup) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> be29e8161f6a6b8e8b181f151bf5388e6a9e3237ae426f572d4ceda403cee9b8 [2024-11-08 18:31:14,682 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 18:31:14,719 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 18:31:14,722 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 18:31:14,725 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 18:31:14,726 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 18:31:14,727 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2317ccc4-f6de-4123-b8bd-49374e0558f2/bin/uautomizer-verify-jihMAELWvX/../../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_nondet_test3-2.i Unable to find full path for "g++" [2024-11-08 18:31:16,934 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 18:31:17,345 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 18:31:17,346 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2317ccc4-f6de-4123-b8bd-49374e0558f2/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_nondet_test3-2.i [2024-11-08 18:31:17,364 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2317ccc4-f6de-4123-b8bd-49374e0558f2/bin/uautomizer-verify-jihMAELWvX/data/81f4ef651/470dd4d0e4554aefaa5d1b47454edd55/FLAGfe6dcee60 [2024-11-08 18:31:17,393 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2317ccc4-f6de-4123-b8bd-49374e0558f2/bin/uautomizer-verify-jihMAELWvX/data/81f4ef651/470dd4d0e4554aefaa5d1b47454edd55 [2024-11-08 18:31:17,401 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 18:31:17,402 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 18:31:17,407 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 18:31:17,408 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 18:31:17,416 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 18:31:17,417 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 06:31:17" (1/1) ... [2024-11-08 18:31:17,418 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@203dac44 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:31:17, skipping insertion in model container [2024-11-08 18:31:17,421 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 06:31:17" (1/1) ... [2024-11-08 18:31:17,510 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 18:31:18,085 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-08 18:31:18,125 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-08 18:31:18,131 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-08 18:31:18,136 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-08 18:31:18,147 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-08 18:31:18,209 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-08 18:31:18,210 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-08 18:31:18,214 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-08 18:31:18,215 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-08 18:31:18,219 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-08 18:31:18,221 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-08 18:31:18,223 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-08 18:31:18,224 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-08 18:31:18,231 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-08 18:31:18,233 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-08 18:31:18,236 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-08 18:31:18,237 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-08 18:31:18,239 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-08 18:31:18,240 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-08 18:31:18,250 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-08 18:31:18,270 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 18:31:18,301 INFO L197 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2024-11-08 18:31:18,320 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 18:31:18,372 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-08 18:31:18,415 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-08 18:31:18,419 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-08 18:31:18,422 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-08 18:31:18,433 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-08 18:31:18,471 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-08 18:31:18,476 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-08 18:31:18,479 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-08 18:31:18,479 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-08 18:31:18,483 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-08 18:31:18,486 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-08 18:31:18,487 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-08 18:31:18,488 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-08 18:31:18,493 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-08 18:31:18,495 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-08 18:31:18,497 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-08 18:31:18,498 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-08 18:31:18,499 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-08 18:31:18,501 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-08 18:31:18,506 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-08 18:31:18,512 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 18:31:18,520 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 18:31:18,637 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 18:31:18,690 INFO L204 MainTranslator]: Completed translation [2024-11-08 18:31:18,691 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:31:18 WrapperNode [2024-11-08 18:31:18,692 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 18:31:18,693 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 18:31:18,693 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 18:31:18,693 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 18:31:18,703 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:31:18" (1/1) ... [2024-11-08 18:31:18,758 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:31:18" (1/1) ... [2024-11-08 18:31:18,828 INFO L138 Inliner]: procedures = 180, calls = 325, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1149 [2024-11-08 18:31:18,829 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 18:31:18,830 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 18:31:18,830 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 18:31:18,830 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 18:31:18,851 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:31:18" (1/1) ... [2024-11-08 18:31:18,852 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:31:18" (1/1) ... [2024-11-08 18:31:18,868 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:31:18" (1/1) ... [2024-11-08 18:31:19,023 INFO L175 MemorySlicer]: Split 302 memory accesses to 3 slices as follows [2, 266, 34]. 88 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0]. The 62 writes are split as follows [0, 58, 4]. [2024-11-08 18:31:19,023 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:31:18" (1/1) ... [2024-11-08 18:31:19,023 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:31:18" (1/1) ... [2024-11-08 18:31:19,105 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:31:18" (1/1) ... [2024-11-08 18:31:19,120 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:31:18" (1/1) ... [2024-11-08 18:31:19,128 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:31:18" (1/1) ... [2024-11-08 18:31:19,139 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:31:18" (1/1) ... [2024-11-08 18:31:19,156 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 18:31:19,161 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 18:31:19,161 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 18:31:19,161 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 18:31:19,162 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:31:18" (1/1) ... [2024-11-08 18:31:19,174 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 18:31:19,188 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2317ccc4-f6de-4123-b8bd-49374e0558f2/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:31:19,202 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2317ccc4-f6de-4123-b8bd-49374e0558f2/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-08 18:31:19,205 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2317ccc4-f6de-4123-b8bd-49374e0558f2/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-08 18:31:19,233 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#0 [2024-11-08 18:31:19,234 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#1 [2024-11-08 18:31:19,234 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#2 [2024-11-08 18:31:19,234 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2024-11-08 18:31:19,234 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2024-11-08 18:31:19,234 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2024-11-08 18:31:19,235 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-08 18:31:19,235 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-08 18:31:19,235 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#0 [2024-11-08 18:31:19,235 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#1 [2024-11-08 18:31:19,235 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#2 [2024-11-08 18:31:19,235 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#0 [2024-11-08 18:31:19,236 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#1 [2024-11-08 18:31:19,236 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#2 [2024-11-08 18:31:19,236 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-08 18:31:19,236 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 18:31:19,236 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-08 18:31:19,237 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-08 18:31:19,237 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-08 18:31:19,237 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-08 18:31:19,237 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-08 18:31:19,237 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-08 18:31:19,237 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-08 18:31:19,238 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2024-11-08 18:31:19,238 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2024-11-08 18:31:19,238 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2024-11-08 18:31:19,238 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-08 18:31:19,238 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-08 18:31:19,239 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2024-11-08 18:31:19,239 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2024-11-08 18:31:19,239 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 18:31:19,239 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 18:31:19,562 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 18:31:19,565 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 18:31:30,874 INFO L? ?]: Removed 149 outVars from TransFormulas that were not future-live. [2024-11-08 18:31:30,874 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 18:31:30,906 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 18:31:30,906 INFO L316 CfgBuilder]: Removed 66 assume(true) statements. [2024-11-08 18:31:30,907 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 06:31:30 BoogieIcfgContainer [2024-11-08 18:31:30,907 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 18:31:30,913 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-08 18:31:30,913 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-08 18:31:30,916 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-08 18:31:30,917 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 06:31:17" (1/3) ... [2024-11-08 18:31:30,920 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c94468c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 06:31:30, skipping insertion in model container [2024-11-08 18:31:30,921 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:31:18" (2/3) ... [2024-11-08 18:31:30,921 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c94468c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 06:31:30, skipping insertion in model container [2024-11-08 18:31:30,921 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 06:31:30" (3/3) ... [2024-11-08 18:31:30,923 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_FNV_nondet_test3-2.i [2024-11-08 18:31:30,946 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-08 18:31:30,946 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-08 18:31:31,043 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 18:31:31,051 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;@136034dd, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 18:31:31,051 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-08 18:31:31,059 INFO L276 IsEmpty]: Start isEmpty. Operand has 237 states, 227 states have (on average 1.6475770925110131) internal successors, (374), 230 states have internal predecessors, (374), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-08 18:31:31,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2024-11-08 18:31:31,072 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:31:31,073 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2024-11-08 18:31:31,073 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-08 18:31:31,085 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:31:31,085 INFO L85 PathProgramCache]: Analyzing trace with hash 1665297, now seen corresponding path program 1 times [2024-11-08 18:31:31,100 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:31:31,100 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [744395903] [2024-11-08 18:31:31,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:31:31,101 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:31:31,101 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2317ccc4-f6de-4123-b8bd-49374e0558f2/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:31:31,104 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2317ccc4-f6de-4123-b8bd-49374e0558f2/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 18:31:31,108 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2317ccc4-f6de-4123-b8bd-49374e0558f2/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-08 18:31:31,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:31:31,342 INFO L255 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-08 18:31:31,349 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:31:31,472 WARN L873 $PredicateComparison]: unable to prove that (exists ((|v_ULTIMATE.start_main_~#i~0#1.base_16| (_ BitVec 32))) (and (= (store |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#i~0#1.base_16| (_ bv0 1)) |c_#valid|) (= (_ bv0 1) (select |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#i~0#1.base_16|)))) is different from true [2024-11-08 18:31:31,474 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:31:31,474 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 18:31:31,475 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:31:31,475 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [744395903] [2024-11-08 18:31:31,476 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [744395903] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:31:31,476 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:31:31,477 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 18:31:31,479 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1032024089] [2024-11-08 18:31:31,480 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:31:31,484 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 18:31:31,485 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:31:31,516 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 18:31:31,517 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=4, Unknown=1, NotChecked=2, Total=12 [2024-11-08 18:31:31,521 INFO L87 Difference]: Start difference. First operand has 237 states, 227 states have (on average 1.6475770925110131) internal successors, (374), 230 states have internal predecessors, (374), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Second operand has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 4 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:31:35,831 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-08 18:31:36,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:31:36,071 INFO L93 Difference]: Finished difference Result 363 states and 485 transitions. [2024-11-08 18:31:36,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 18:31:36,079 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 4 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2024-11-08 18:31:36,080 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:31:36,091 INFO L225 Difference]: With dead ends: 363 [2024-11-08 18:31:36,091 INFO L226 Difference]: Without dead ends: 360 [2024-11-08 18:31:36,092 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=4, Unknown=1, NotChecked=2, Total=12 [2024-11-08 18:31:36,096 INFO L432 NwaCegarLoop]: 305 mSDtfsCounter, 164 mSDsluCounter, 286 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 166 SdHoareTripleChecker+Valid, 591 SdHoareTripleChecker+Invalid, 524 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 486 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2024-11-08 18:31:36,098 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [166 Valid, 591 Invalid, 524 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 37 Invalid, 1 Unknown, 486 Unchecked, 4.5s Time] [2024-11-08 18:31:36,119 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 360 states. [2024-11-08 18:31:36,153 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 360 to 234. [2024-11-08 18:31:36,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 234 states, 225 states have (on average 1.3244444444444445) internal successors, (298), 227 states have internal predecessors, (298), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-08 18:31:36,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 234 states to 234 states and 308 transitions. [2024-11-08 18:31:36,160 INFO L78 Accepts]: Start accepts. Automaton has 234 states and 308 transitions. Word has length 4 [2024-11-08 18:31:36,160 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:31:36,161 INFO L471 AbstractCegarLoop]: Abstraction has 234 states and 308 transitions. [2024-11-08 18:31:36,161 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 4 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:31:36,161 INFO L276 IsEmpty]: Start isEmpty. Operand 234 states and 308 transitions. [2024-11-08 18:31:36,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2024-11-08 18:31:36,163 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:31:36,163 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:31:36,187 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2317ccc4-f6de-4123-b8bd-49374e0558f2/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-08 18:31:36,368 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2317ccc4-f6de-4123-b8bd-49374e0558f2/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:31:36,373 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-08 18:31:36,373 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:31:36,373 INFO L85 PathProgramCache]: Analyzing trace with hash 838846806, now seen corresponding path program 1 times [2024-11-08 18:31:36,374 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:31:36,374 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [847172643] [2024-11-08 18:31:36,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:31:36,374 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:31:36,375 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2317ccc4-f6de-4123-b8bd-49374e0558f2/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:31:36,378 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2317ccc4-f6de-4123-b8bd-49374e0558f2/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 18:31:36,380 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2317ccc4-f6de-4123-b8bd-49374e0558f2/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-08 18:31:36,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:31:36,669 INFO L255 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-08 18:31:36,673 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:31:36,871 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:31:36,871 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 18:31:36,871 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:31:36,872 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [847172643] [2024-11-08 18:31:36,872 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [847172643] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:31:36,874 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:31:36,874 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-08 18:31:36,874 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [205520181] [2024-11-08 18:31:36,875 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:31:36,876 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 18:31:36,878 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:31:36,878 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 18:31:36,879 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 18:31:36,879 INFO L87 Difference]: Start difference. First operand 234 states and 308 transitions. Second operand has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:31:41,294 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-08 18:31:44,253 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:31:44,254 INFO L93 Difference]: Finished difference Result 383 states and 505 transitions. [2024-11-08 18:31:44,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 18:31:44,257 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2024-11-08 18:31:44,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:31:44,260 INFO L225 Difference]: With dead ends: 383 [2024-11-08 18:31:44,260 INFO L226 Difference]: Without dead ends: 383 [2024-11-08 18:31:44,260 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-08 18:31:44,262 INFO L432 NwaCegarLoop]: 316 mSDtfsCounter, 187 mSDsluCounter, 547 mSDsCounter, 0 mSdLazyCounter, 118 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 188 SdHoareTripleChecker+Valid, 863 SdHoareTripleChecker+Invalid, 129 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 118 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.3s IncrementalHoareTripleChecker+Time [2024-11-08 18:31:44,263 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [188 Valid, 863 Invalid, 129 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 118 Invalid, 1 Unknown, 0 Unchecked, 7.3s Time] [2024-11-08 18:31:44,264 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 383 states. [2024-11-08 18:31:44,291 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 383 to 351. [2024-11-08 18:31:44,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 351 states, 341 states have (on average 1.3225806451612903) internal successors, (451), 344 states have internal predecessors, (451), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-08 18:31:44,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 351 states to 351 states and 463 transitions. [2024-11-08 18:31:44,295 INFO L78 Accepts]: Start accepts. Automaton has 351 states and 463 transitions. Word has length 16 [2024-11-08 18:31:44,295 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:31:44,295 INFO L471 AbstractCegarLoop]: Abstraction has 351 states and 463 transitions. [2024-11-08 18:31:44,295 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:31:44,295 INFO L276 IsEmpty]: Start isEmpty. Operand 351 states and 463 transitions. [2024-11-08 18:31:44,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2024-11-08 18:31:44,296 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:31:44,296 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:31:44,315 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2317ccc4-f6de-4123-b8bd-49374e0558f2/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-08 18:31:44,497 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2317ccc4-f6de-4123-b8bd-49374e0558f2/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:31:44,497 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-08 18:31:44,498 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:31:44,498 INFO L85 PathProgramCache]: Analyzing trace with hash 266971093, now seen corresponding path program 1 times [2024-11-08 18:31:44,498 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:31:44,498 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1697823229] [2024-11-08 18:31:44,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:31:44,499 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:31:44,499 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2317ccc4-f6de-4123-b8bd-49374e0558f2/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:31:44,500 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2317ccc4-f6de-4123-b8bd-49374e0558f2/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 18:31:44,502 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2317ccc4-f6de-4123-b8bd-49374e0558f2/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-08 18:31:44,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:31:44,726 INFO L255 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-08 18:31:44,730 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:31:45,001 WARN L873 $PredicateComparison]: unable to prove that (exists ((|v_ULTIMATE.start_main_~#i~0#1.base_17| (_ BitVec 32))) (and (= |c_#valid| (store |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#i~0#1.base_17| (_ bv0 1))) (= (_ bv0 1) (select |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#i~0#1.base_17|)))) is different from true [2024-11-08 18:31:45,002 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:31:45,002 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 18:31:45,002 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:31:45,003 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1697823229] [2024-11-08 18:31:45,003 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1697823229] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:31:45,003 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:31:45,003 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 18:31:45,003 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1178432338] [2024-11-08 18:31:45,004 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:31:45,004 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 18:31:45,004 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:31:45,009 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 18:31:45,009 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=4, Unknown=1, NotChecked=2, Total=12 [2024-11-08 18:31:45,009 INFO L87 Difference]: Start difference. First operand 351 states and 463 transitions. Second operand has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 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) [2024-11-08 18:31:49,268 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-08 18:31:50,446 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-08 18:31:50,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:31:50,448 INFO L93 Difference]: Finished difference Result 445 states and 584 transitions. [2024-11-08 18:31:50,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 18:31:50,456 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 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 16 [2024-11-08 18:31:50,456 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:31:50,458 INFO L225 Difference]: With dead ends: 445 [2024-11-08 18:31:50,458 INFO L226 Difference]: Without dead ends: 437 [2024-11-08 18:31:50,458 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=4, Unknown=1, NotChecked=2, Total=12 [2024-11-08 18:31:50,460 INFO L432 NwaCegarLoop]: 301 mSDtfsCounter, 88 mSDsluCounter, 286 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 89 SdHoareTripleChecker+Valid, 587 SdHoareTripleChecker+Invalid, 443 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 412 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2024-11-08 18:31:50,460 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [89 Valid, 587 Invalid, 443 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 30 Invalid, 1 Unknown, 412 Unchecked, 5.4s Time] [2024-11-08 18:31:50,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 437 states. [2024-11-08 18:31:50,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 437 to 397. [2024-11-08 18:31:50,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 397 states, 386 states have (on average 1.3212435233160622) internal successors, (510), 389 states have internal predecessors, (510), 7 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-11-08 18:31:50,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 397 states to 397 states and 524 transitions. [2024-11-08 18:31:50,482 INFO L78 Accepts]: Start accepts. Automaton has 397 states and 524 transitions. Word has length 16 [2024-11-08 18:31:50,482 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:31:50,482 INFO L471 AbstractCegarLoop]: Abstraction has 397 states and 524 transitions. [2024-11-08 18:31:50,483 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 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) [2024-11-08 18:31:50,483 INFO L276 IsEmpty]: Start isEmpty. Operand 397 states and 524 transitions. [2024-11-08 18:31:50,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2024-11-08 18:31:50,485 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:31:50,485 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] [2024-11-08 18:31:50,508 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2317ccc4-f6de-4123-b8bd-49374e0558f2/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-08 18:31:50,685 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2317ccc4-f6de-4123-b8bd-49374e0558f2/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:31:50,686 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-08 18:31:50,686 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:31:50,686 INFO L85 PathProgramCache]: Analyzing trace with hash -246462692, now seen corresponding path program 1 times [2024-11-08 18:31:50,687 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:31:50,687 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [552229530] [2024-11-08 18:31:50,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:31:50,687 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:31:50,688 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2317ccc4-f6de-4123-b8bd-49374e0558f2/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:31:50,689 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2317ccc4-f6de-4123-b8bd-49374e0558f2/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 18:31:50,690 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2317ccc4-f6de-4123-b8bd-49374e0558f2/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-08 18:31:50,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:31:50,948 INFO L255 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-08 18:31:50,952 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:31:50,978 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:31:50,979 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 18:31:50,979 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:31:50,979 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [552229530] [2024-11-08 18:31:50,979 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [552229530] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:31:50,980 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:31:50,980 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 18:31:50,980 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [100645036] [2024-11-08 18:31:50,980 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:31:50,981 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 18:31:50,981 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:31:50,982 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 18:31:50,982 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 18:31:50,982 INFO L87 Difference]: Start difference. First operand 397 states and 524 transitions. Second operand has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:31:51,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:31:51,179 INFO L93 Difference]: Finished difference Result 457 states and 584 transitions. [2024-11-08 18:31:51,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 18:31:51,180 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 51 [2024-11-08 18:31:51,180 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:31:51,182 INFO L225 Difference]: With dead ends: 457 [2024-11-08 18:31:51,182 INFO L226 Difference]: Without dead ends: 457 [2024-11-08 18:31:51,183 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 18:31:51,184 INFO L432 NwaCegarLoop]: 288 mSDtfsCounter, 8 mSDsluCounter, 273 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 561 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-08 18:31:51,184 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 561 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-08 18:31:51,186 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 457 states. [2024-11-08 18:31:51,209 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 457 to 457. [2024-11-08 18:31:51,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 457 states, 446 states have (on average 1.2780269058295963) internal successors, (570), 449 states have internal predecessors, (570), 7 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-11-08 18:31:51,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 457 states to 457 states and 584 transitions. [2024-11-08 18:31:51,213 INFO L78 Accepts]: Start accepts. Automaton has 457 states and 584 transitions. Word has length 51 [2024-11-08 18:31:51,213 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:31:51,213 INFO L471 AbstractCegarLoop]: Abstraction has 457 states and 584 transitions. [2024-11-08 18:31:51,214 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:31:51,214 INFO L276 IsEmpty]: Start isEmpty. Operand 457 states and 584 transitions. [2024-11-08 18:31:51,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2024-11-08 18:31:51,215 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:31:51,215 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] [2024-11-08 18:31:51,238 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2317ccc4-f6de-4123-b8bd-49374e0558f2/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-08 18:31:51,416 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2317ccc4-f6de-4123-b8bd-49374e0558f2/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:31:51,416 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-08 18:31:51,416 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:31:51,417 INFO L85 PathProgramCache]: Analyzing trace with hash -521222306, now seen corresponding path program 1 times [2024-11-08 18:31:51,417 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:31:51,417 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1208419266] [2024-11-08 18:31:51,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:31:51,417 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:31:51,418 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2317ccc4-f6de-4123-b8bd-49374e0558f2/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:31:51,419 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2317ccc4-f6de-4123-b8bd-49374e0558f2/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 18:31:51,421 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2317ccc4-f6de-4123-b8bd-49374e0558f2/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-08 18:31:51,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:31:51,682 INFO L255 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-08 18:31:51,685 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:31:51,732 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:31:51,733 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 18:31:51,733 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:31:51,733 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1208419266] [2024-11-08 18:31:51,733 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1208419266] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:31:51,734 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:31:51,734 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-08 18:31:51,734 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1843874615] [2024-11-08 18:31:51,734 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:31:51,735 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 18:31:51,735 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:31:51,736 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 18:31:51,736 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 18:31:51,736 INFO L87 Difference]: Start difference. First operand 457 states and 584 transitions. Second operand has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:31:51,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:31:51,907 INFO L93 Difference]: Finished difference Result 403 states and 494 transitions. [2024-11-08 18:31:51,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 18:31:51,908 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 51 [2024-11-08 18:31:51,908 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:31:51,909 INFO L225 Difference]: With dead ends: 403 [2024-11-08 18:31:51,910 INFO L226 Difference]: Without dead ends: 403 [2024-11-08 18:31:51,910 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-08 18:31:51,911 INFO L432 NwaCegarLoop]: 273 mSDtfsCounter, 32 mSDsluCounter, 532 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 805 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 18:31:51,911 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 805 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 18:31:51,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 403 states. [2024-11-08 18:31:51,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 403 to 403. [2024-11-08 18:31:51,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 403 states, 392 states have (on average 1.2244897959183674) internal successors, (480), 395 states have internal predecessors, (480), 7 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-11-08 18:31:51,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 403 states to 403 states and 494 transitions. [2024-11-08 18:31:51,925 INFO L78 Accepts]: Start accepts. Automaton has 403 states and 494 transitions. Word has length 51 [2024-11-08 18:31:51,925 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:31:51,925 INFO L471 AbstractCegarLoop]: Abstraction has 403 states and 494 transitions. [2024-11-08 18:31:51,925 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:31:51,926 INFO L276 IsEmpty]: Start isEmpty. Operand 403 states and 494 transitions. [2024-11-08 18:31:51,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2024-11-08 18:31:51,927 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:31:51,927 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] [2024-11-08 18:31:51,949 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2317ccc4-f6de-4123-b8bd-49374e0558f2/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-11-08 18:31:52,131 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2317ccc4-f6de-4123-b8bd-49374e0558f2/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:31:52,131 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-08 18:31:52,133 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:31:52,133 INFO L85 PathProgramCache]: Analyzing trace with hash -44006000, now seen corresponding path program 1 times [2024-11-08 18:31:52,133 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:31:52,133 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1262384201] [2024-11-08 18:31:52,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:31:52,134 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:31:52,134 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2317ccc4-f6de-4123-b8bd-49374e0558f2/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:31:52,135 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2317ccc4-f6de-4123-b8bd-49374e0558f2/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 18:31:52,143 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2317ccc4-f6de-4123-b8bd-49374e0558f2/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-08 18:31:52,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:31:52,363 INFO L255 TraceCheckSpWp]: Trace formula consists of 127 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-08 18:31:52,367 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:31:52,397 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-08 18:31:52,398 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-08 18:31:52,399 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-08 18:31:52,410 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 30 treesize of output 39 [2024-11-08 18:31:52,544 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:31:52,544 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 70 treesize of output 26 [2024-11-08 18:31:52,654 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:31:52,654 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 18:31:52,655 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:31:52,655 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1262384201] [2024-11-08 18:31:52,655 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1262384201] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:31:52,655 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:31:52,655 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 18:31:52,655 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [453322471] [2024-11-08 18:31:52,656 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:31:52,656 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 18:31:52,656 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:31:52,657 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 18:31:52,657 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 18:31:52,657 INFO L87 Difference]: Start difference. First operand 403 states and 494 transitions. Second operand has 5 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:31:53,660 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:31:53,660 INFO L93 Difference]: Finished difference Result 405 states and 506 transitions. [2024-11-08 18:31:53,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 18:31:53,662 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 51 [2024-11-08 18:31:53,662 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:31:53,663 INFO L225 Difference]: With dead ends: 405 [2024-11-08 18:31:53,664 INFO L226 Difference]: Without dead ends: 402 [2024-11-08 18:31:53,664 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-08 18:31:53,665 INFO L432 NwaCegarLoop]: 288 mSDtfsCounter, 112 mSDsluCounter, 838 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 1126 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-08 18:31:53,666 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [115 Valid, 1126 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-08 18:31:53,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 402 states. [2024-11-08 18:31:53,674 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 402 to 354. [2024-11-08 18:31:53,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 354 states, 344 states have (on average 1.247093023255814) internal successors, (429), 347 states have internal predecessors, (429), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-08 18:31:53,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 354 states to 354 states and 441 transitions. [2024-11-08 18:31:53,689 INFO L78 Accepts]: Start accepts. Automaton has 354 states and 441 transitions. Word has length 51 [2024-11-08 18:31:53,690 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:31:53,690 INFO L471 AbstractCegarLoop]: Abstraction has 354 states and 441 transitions. [2024-11-08 18:31:53,690 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:31:53,690 INFO L276 IsEmpty]: Start isEmpty. Operand 354 states and 441 transitions. [2024-11-08 18:31:53,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2024-11-08 18:31:53,696 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:31:53,697 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:31:53,716 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2317ccc4-f6de-4123-b8bd-49374e0558f2/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-11-08 18:31:53,897 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2317ccc4-f6de-4123-b8bd-49374e0558f2/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:31:53,898 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-08 18:31:53,898 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:31:53,898 INFO L85 PathProgramCache]: Analyzing trace with hash 1100252050, now seen corresponding path program 1 times [2024-11-08 18:31:53,899 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:31:53,899 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1689028443] [2024-11-08 18:31:53,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:31:53,900 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:31:53,900 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2317ccc4-f6de-4123-b8bd-49374e0558f2/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:31:53,902 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2317ccc4-f6de-4123-b8bd-49374e0558f2/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 18:31:53,903 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2317ccc4-f6de-4123-b8bd-49374e0558f2/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-08 18:31:54,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:31:54,398 INFO L255 TraceCheckSpWp]: Trace formula consists of 497 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-08 18:31:54,401 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:31:54,438 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-08 18:31:54,438 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 18:31:54,438 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:31:54,439 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1689028443] [2024-11-08 18:31:54,439 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1689028443] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:31:54,439 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:31:54,439 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 18:31:54,439 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [942871841] [2024-11-08 18:31:54,443 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:31:54,444 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 18:31:54,444 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:31:54,445 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 18:31:54,445 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 18:31:54,445 INFO L87 Difference]: Start difference. First operand 354 states and 441 transitions. Second operand has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-08 18:31:54,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:31:54,613 INFO L93 Difference]: Finished difference Result 394 states and 481 transitions. [2024-11-08 18:31:54,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 18:31:54,614 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 87 [2024-11-08 18:31:54,615 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:31:54,616 INFO L225 Difference]: With dead ends: 394 [2024-11-08 18:31:54,617 INFO L226 Difference]: Without dead ends: 394 [2024-11-08 18:31:54,617 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 85 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 18:31:54,621 INFO L432 NwaCegarLoop]: 275 mSDtfsCounter, 8 mSDsluCounter, 260 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 535 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-08 18:31:54,622 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 535 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-08 18:31:54,623 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 394 states. [2024-11-08 18:31:54,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 394 to 394. [2024-11-08 18:31:54,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 394 states, 384 states have (on average 1.2213541666666667) internal successors, (469), 387 states have internal predecessors, (469), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-08 18:31:54,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 394 states to 394 states and 481 transitions. [2024-11-08 18:31:54,637 INFO L78 Accepts]: Start accepts. Automaton has 394 states and 481 transitions. Word has length 87 [2024-11-08 18:31:54,637 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:31:54,638 INFO L471 AbstractCegarLoop]: Abstraction has 394 states and 481 transitions. [2024-11-08 18:31:54,638 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-08 18:31:54,638 INFO L276 IsEmpty]: Start isEmpty. Operand 394 states and 481 transitions. [2024-11-08 18:31:54,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2024-11-08 18:31:54,640 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:31:54,641 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:31:54,663 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2317ccc4-f6de-4123-b8bd-49374e0558f2/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2024-11-08 18:31:54,841 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2317ccc4-f6de-4123-b8bd-49374e0558f2/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:31:54,842 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-08 18:31:54,842 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:31:54,842 INFO L85 PathProgramCache]: Analyzing trace with hash 539552272, now seen corresponding path program 1 times [2024-11-08 18:31:54,843 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:31:54,843 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [203208759] [2024-11-08 18:31:54,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:31:54,843 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:31:54,843 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2317ccc4-f6de-4123-b8bd-49374e0558f2/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:31:54,845 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2317ccc4-f6de-4123-b8bd-49374e0558f2/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 18:31:54,846 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2317ccc4-f6de-4123-b8bd-49374e0558f2/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-08 18:31:55,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:31:55,411 INFO L255 TraceCheckSpWp]: Trace formula consists of 499 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-08 18:31:55,416 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:31:55,454 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-08 18:31:55,455 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 18:31:55,455 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:31:55,455 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [203208759] [2024-11-08 18:31:55,455 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [203208759] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:31:55,456 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:31:55,456 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-08 18:31:55,456 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1466057954] [2024-11-08 18:31:55,456 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:31:55,457 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 18:31:55,457 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:31:55,458 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 18:31:55,458 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 18:31:55,458 INFO L87 Difference]: Start difference. First operand 394 states and 481 transitions. Second operand has 4 states, 4 states have (on average 19.75) internal successors, (79), 4 states have internal predecessors, (79), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-08 18:31:55,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:31:55,630 INFO L93 Difference]: Finished difference Result 358 states and 421 transitions. [2024-11-08 18:31:55,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 18:31:55,631 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.75) internal successors, (79), 4 states have internal predecessors, (79), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 87 [2024-11-08 18:31:55,634 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:31:55,635 INFO L225 Difference]: With dead ends: 358 [2024-11-08 18:31:55,635 INFO L226 Difference]: Without dead ends: 358 [2024-11-08 18:31:55,636 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 84 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-08 18:31:55,636 INFO L432 NwaCegarLoop]: 260 mSDtfsCounter, 32 mSDsluCounter, 506 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 766 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 18:31:55,637 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 766 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 18:31:55,642 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 358 states. [2024-11-08 18:31:55,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 358 to 358. [2024-11-08 18:31:55,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 358 states, 348 states have (on average 1.1752873563218391) internal successors, (409), 351 states have internal predecessors, (409), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-08 18:31:55,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 358 states to 358 states and 421 transitions. [2024-11-08 18:31:55,658 INFO L78 Accepts]: Start accepts. Automaton has 358 states and 421 transitions. Word has length 87 [2024-11-08 18:31:55,659 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:31:55,659 INFO L471 AbstractCegarLoop]: Abstraction has 358 states and 421 transitions. [2024-11-08 18:31:55,659 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.75) internal successors, (79), 4 states have internal predecessors, (79), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-08 18:31:55,659 INFO L276 IsEmpty]: Start isEmpty. Operand 358 states and 421 transitions. [2024-11-08 18:31:55,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2024-11-08 18:31:55,662 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:31:55,662 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:31:55,693 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2317ccc4-f6de-4123-b8bd-49374e0558f2/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2024-11-08 18:31:55,867 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2317ccc4-f6de-4123-b8bd-49374e0558f2/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:31:55,867 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-08 18:31:55,867 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:31:55,868 INFO L85 PathProgramCache]: Analyzing trace with hash -122125538, now seen corresponding path program 1 times [2024-11-08 18:31:55,868 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:31:55,868 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1449162526] [2024-11-08 18:31:55,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:31:55,868 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:31:55,868 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2317ccc4-f6de-4123-b8bd-49374e0558f2/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:31:55,869 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2317ccc4-f6de-4123-b8bd-49374e0558f2/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 18:31:55,870 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2317ccc4-f6de-4123-b8bd-49374e0558f2/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-08 18:31:56,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:31:56,381 INFO L255 TraceCheckSpWp]: Trace formula consists of 485 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-08 18:31:56,385 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:31:56,426 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-08 18:31:56,426 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 18:31:56,426 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:31:56,427 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1449162526] [2024-11-08 18:31:56,427 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1449162526] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:31:56,427 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:31:56,427 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-08 18:31:56,427 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1308214564] [2024-11-08 18:31:56,427 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:31:56,428 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 18:31:56,428 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:31:56,429 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 18:31:56,429 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 18:31:56,429 INFO L87 Difference]: Start difference. First operand 358 states and 421 transitions. Second operand has 4 states, 4 states have (on average 20.5) internal successors, (82), 4 states have internal predecessors, (82), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-08 18:31:56,494 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:31:56,494 INFO L93 Difference]: Finished difference Result 361 states and 425 transitions. [2024-11-08 18:31:56,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 18:31:56,495 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.5) internal successors, (82), 4 states have internal predecessors, (82), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 87 [2024-11-08 18:31:56,496 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:31:56,499 INFO L225 Difference]: With dead ends: 361 [2024-11-08 18:31:56,499 INFO L226 Difference]: Without dead ends: 361 [2024-11-08 18:31:56,499 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 84 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 18:31:56,500 INFO L432 NwaCegarLoop]: 279 mSDtfsCounter, 0 mSDsluCounter, 554 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 833 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 18:31:56,500 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 833 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 18:31:56,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 361 states. [2024-11-08 18:31:56,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 361 to 361. [2024-11-08 18:31:56,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 361 states, 350 states have (on average 1.177142857142857) internal successors, (412), 354 states have internal predecessors, (412), 6 states have call successors, (6), 2 states have call predecessors, (6), 3 states have return successors, (7), 6 states have call predecessors, (7), 6 states have call successors, (7) [2024-11-08 18:31:56,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 361 states to 361 states and 425 transitions. [2024-11-08 18:31:56,512 INFO L78 Accepts]: Start accepts. Automaton has 361 states and 425 transitions. Word has length 87 [2024-11-08 18:31:56,512 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:31:56,512 INFO L471 AbstractCegarLoop]: Abstraction has 361 states and 425 transitions. [2024-11-08 18:31:56,513 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.5) internal successors, (82), 4 states have internal predecessors, (82), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-08 18:31:56,513 INFO L276 IsEmpty]: Start isEmpty. Operand 361 states and 425 transitions. [2024-11-08 18:31:56,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2024-11-08 18:31:56,514 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:31:56,514 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:31:56,545 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2317ccc4-f6de-4123-b8bd-49374e0558f2/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-11-08 18:31:56,715 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2317ccc4-f6de-4123-b8bd-49374e0558f2/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:31:56,715 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-08 18:31:56,715 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:31:56,715 INFO L85 PathProgramCache]: Analyzing trace with hash -918004164, now seen corresponding path program 1 times [2024-11-08 18:31:56,716 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:31:56,716 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1275525458] [2024-11-08 18:31:56,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:31:56,716 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:31:56,716 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2317ccc4-f6de-4123-b8bd-49374e0558f2/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:31:56,717 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2317ccc4-f6de-4123-b8bd-49374e0558f2/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 18:31:56,719 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2317ccc4-f6de-4123-b8bd-49374e0558f2/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-08 18:31:57,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:31:57,239 INFO L255 TraceCheckSpWp]: Trace formula consists of 507 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-08 18:31:57,242 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:31:57,304 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-08 18:31:57,305 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 18:31:57,506 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-08 18:31:57,506 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:31:57,506 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1275525458] [2024-11-08 18:31:57,506 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1275525458] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 18:31:57,507 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-08 18:31:57,507 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2024-11-08 18:31:57,507 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [105260280] [2024-11-08 18:31:57,507 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-08 18:31:57,508 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-08 18:31:57,508 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:31:57,508 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-08 18:31:57,509 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-11-08 18:31:57,509 INFO L87 Difference]: Start difference. First operand 361 states and 425 transitions. Second operand has 8 states, 8 states have (on average 11.0) internal successors, (88), 8 states have internal predecessors, (88), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-08 18:31:57,737 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:31:57,737 INFO L93 Difference]: Finished difference Result 372 states and 442 transitions. [2024-11-08 18:31:57,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-08 18:31:57,739 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.0) internal successors, (88), 8 states have internal predecessors, (88), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 89 [2024-11-08 18:31:57,741 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:31:57,743 INFO L225 Difference]: With dead ends: 372 [2024-11-08 18:31:57,743 INFO L226 Difference]: Without dead ends: 372 [2024-11-08 18:31:57,743 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 179 GetRequests, 170 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=44, Invalid=66, Unknown=0, NotChecked=0, Total=110 [2024-11-08 18:31:57,744 INFO L432 NwaCegarLoop]: 278 mSDtfsCounter, 4 mSDsluCounter, 1104 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 1382 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 18:31:57,746 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 1382 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 18:31:57,747 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 372 states. [2024-11-08 18:31:57,755 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 372 to 370. [2024-11-08 18:31:57,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 370 states, 358 states have (on average 1.1899441340782122) internal successors, (426), 362 states have internal predecessors, (426), 6 states have call successors, (6), 3 states have call predecessors, (6), 4 states have return successors, (8), 6 states have call predecessors, (8), 6 states have call successors, (8) [2024-11-08 18:31:57,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 370 states to 370 states and 440 transitions. [2024-11-08 18:31:57,759 INFO L78 Accepts]: Start accepts. Automaton has 370 states and 440 transitions. Word has length 89 [2024-11-08 18:31:57,760 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:31:57,760 INFO L471 AbstractCegarLoop]: Abstraction has 370 states and 440 transitions. [2024-11-08 18:31:57,760 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.0) internal successors, (88), 8 states have internal predecessors, (88), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-08 18:31:57,760 INFO L276 IsEmpty]: Start isEmpty. Operand 370 states and 440 transitions. [2024-11-08 18:31:57,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-11-08 18:31:57,762 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:31:57,762 INFO L215 NwaCegarLoop]: trace histogram [6, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:31:57,789 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2317ccc4-f6de-4123-b8bd-49374e0558f2/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-11-08 18:31:57,962 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2317ccc4-f6de-4123-b8bd-49374e0558f2/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:31:57,963 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-08 18:31:57,963 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:31:57,963 INFO L85 PathProgramCache]: Analyzing trace with hash 1833445278, now seen corresponding path program 2 times [2024-11-08 18:31:57,964 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:31:57,964 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [71994543] [2024-11-08 18:31:57,964 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-08 18:31:57,964 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:31:57,965 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2317ccc4-f6de-4123-b8bd-49374e0558f2/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:31:57,967 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2317ccc4-f6de-4123-b8bd-49374e0558f2/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 18:31:57,969 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2317ccc4-f6de-4123-b8bd-49374e0558f2/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-08 18:31:58,602 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-08 18:31:58,602 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-08 18:31:58,618 INFO L255 TraceCheckSpWp]: Trace formula consists of 551 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-08 18:31:58,622 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:31:59,403 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-08 18:31:59,404 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-08 18:31:59,405 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-08 18:31:59,408 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 30 treesize of output 39 [2024-11-08 18:31:59,530 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:31:59,531 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 70 treesize of output 26 [2024-11-08 18:31:59,581 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2024-11-08 18:31:59,581 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 18:31:59,582 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:31:59,582 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [71994543] [2024-11-08 18:31:59,582 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [71994543] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:31:59,582 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:31:59,582 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-08 18:31:59,583 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [116971966] [2024-11-08 18:31:59,583 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:31:59,583 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 18:31:59,584 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:31:59,584 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 18:31:59,584 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2024-11-08 18:31:59,585 INFO L87 Difference]: Start difference. First operand 370 states and 440 transitions. Second operand has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 6 states have internal predecessors, (80), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-08 18:32:00,035 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:32:00,036 INFO L93 Difference]: Finished difference Result 488 states and 587 transitions. [2024-11-08 18:32:00,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 18:32:00,037 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 6 states have internal predecessors, (80), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 93 [2024-11-08 18:32:00,038 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:32:00,040 INFO L225 Difference]: With dead ends: 488 [2024-11-08 18:32:00,040 INFO L226 Difference]: Without dead ends: 488 [2024-11-08 18:32:00,040 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 88 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=20, Invalid=22, Unknown=0, NotChecked=0, Total=42 [2024-11-08 18:32:00,042 INFO L432 NwaCegarLoop]: 272 mSDtfsCounter, 350 mSDsluCounter, 596 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 353 SdHoareTripleChecker+Valid, 868 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-08 18:32:00,043 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [353 Valid, 868 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-08 18:32:00,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 488 states. [2024-11-08 18:32:00,054 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 488 to 372. [2024-11-08 18:32:00,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 372 states, 360 states have (on average 1.1888888888888889) internal successors, (428), 364 states have internal predecessors, (428), 6 states have call successors, (6), 3 states have call predecessors, (6), 4 states have return successors, (8), 6 states have call predecessors, (8), 6 states have call successors, (8) [2024-11-08 18:32:00,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 372 states to 372 states and 442 transitions. [2024-11-08 18:32:00,059 INFO L78 Accepts]: Start accepts. Automaton has 372 states and 442 transitions. Word has length 93 [2024-11-08 18:32:00,060 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:32:00,060 INFO L471 AbstractCegarLoop]: Abstraction has 372 states and 442 transitions. [2024-11-08 18:32:00,061 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 6 states have internal predecessors, (80), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-08 18:32:00,061 INFO L276 IsEmpty]: Start isEmpty. Operand 372 states and 442 transitions. [2024-11-08 18:32:00,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2024-11-08 18:32:00,063 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:32:00,063 INFO L215 NwaCegarLoop]: trace histogram [6, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:32:00,093 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2317ccc4-f6de-4123-b8bd-49374e0558f2/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2024-11-08 18:32:00,264 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2317ccc4-f6de-4123-b8bd-49374e0558f2/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:32:00,264 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-08 18:32:00,265 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:32:00,265 INFO L85 PathProgramCache]: Analyzing trace with hash -1517075896, now seen corresponding path program 1 times [2024-11-08 18:32:00,266 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:32:00,266 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [276531950] [2024-11-08 18:32:00,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:32:00,266 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:32:00,267 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2317ccc4-f6de-4123-b8bd-49374e0558f2/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:32:00,268 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2317ccc4-f6de-4123-b8bd-49374e0558f2/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 18:32:00,270 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2317ccc4-f6de-4123-b8bd-49374e0558f2/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-11-08 18:32:00,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:32:00,947 INFO L255 TraceCheckSpWp]: Trace formula consists of 603 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-08 18:32:00,951 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:32:01,446 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2024-11-08 18:32:01,446 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 18:32:01,446 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:32:01,446 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [276531950] [2024-11-08 18:32:01,446 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [276531950] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:32:01,446 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:32:01,446 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-08 18:32:01,447 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [73389176] [2024-11-08 18:32:01,447 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:32:01,447 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 18:32:01,447 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:32:01,448 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 18:32:01,448 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 18:32:01,449 INFO L87 Difference]: Start difference. First operand 372 states and 442 transitions. Second operand has 4 states, 4 states have (on average 28.75) internal successors, (115), 4 states have internal predecessors, (115), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-08 18:32:05,888 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-08 18:32:09,892 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-08 18:32:12,752 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-08 18:32:13,257 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:32:13,258 INFO L93 Difference]: Finished difference Result 545 states and 659 transitions. [2024-11-08 18:32:13,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 18:32:13,260 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 28.75) internal successors, (115), 4 states have internal predecessors, (115), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 128 [2024-11-08 18:32:13,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:32:13,262 INFO L225 Difference]: With dead ends: 545 [2024-11-08 18:32:13,263 INFO L226 Difference]: Without dead ends: 545 [2024-11-08 18:32:13,263 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 129 GetRequests, 126 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-08 18:32:13,264 INFO L432 NwaCegarLoop]: 311 mSDtfsCounter, 542 mSDsluCounter, 288 mSDsCounter, 0 mSdLazyCounter, 143 mSolverCounterSat, 14 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 544 SdHoareTripleChecker+Valid, 599 SdHoareTripleChecker+Invalid, 159 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 143 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.8s IncrementalHoareTripleChecker+Time [2024-11-08 18:32:13,264 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [544 Valid, 599 Invalid, 159 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 143 Invalid, 2 Unknown, 0 Unchecked, 11.8s Time] [2024-11-08 18:32:13,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 545 states. [2024-11-08 18:32:13,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 545 to 472. [2024-11-08 18:32:13,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 472 states, 458 states have (on average 1.1899563318777293) internal successors, (545), 463 states have internal predecessors, (545), 8 states have call successors, (8), 3 states have call predecessors, (8), 4 states have return successors, (10), 8 states have call predecessors, (10), 8 states have call successors, (10) [2024-11-08 18:32:13,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 472 states to 472 states and 563 transitions. [2024-11-08 18:32:13,284 INFO L78 Accepts]: Start accepts. Automaton has 472 states and 563 transitions. Word has length 128 [2024-11-08 18:32:13,285 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:32:13,285 INFO L471 AbstractCegarLoop]: Abstraction has 472 states and 563 transitions. [2024-11-08 18:32:13,285 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 28.75) internal successors, (115), 4 states have internal predecessors, (115), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-08 18:32:13,285 INFO L276 IsEmpty]: Start isEmpty. Operand 472 states and 563 transitions. [2024-11-08 18:32:13,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2024-11-08 18:32:13,288 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:32:13,288 INFO L215 NwaCegarLoop]: trace histogram [6, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:32:13,320 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2317ccc4-f6de-4123-b8bd-49374e0558f2/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2024-11-08 18:32:13,489 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2317ccc4-f6de-4123-b8bd-49374e0558f2/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:32:13,489 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-08 18:32:13,489 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:32:13,489 INFO L85 PathProgramCache]: Analyzing trace with hash -1040284983, now seen corresponding path program 1 times [2024-11-08 18:32:13,490 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:32:13,490 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [562673972] [2024-11-08 18:32:13,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:32:13,490 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:32:13,491 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2317ccc4-f6de-4123-b8bd-49374e0558f2/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:32:13,492 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2317ccc4-f6de-4123-b8bd-49374e0558f2/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 18:32:13,493 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2317ccc4-f6de-4123-b8bd-49374e0558f2/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-11-08 18:32:14,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:32:14,279 INFO L255 TraceCheckSpWp]: Trace formula consists of 619 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-08 18:32:14,284 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:32:14,443 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 20 proven. 3 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-08 18:32:14,444 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 18:32:14,805 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 2 proven. 20 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-08 18:32:14,806 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:32:14,806 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [562673972] [2024-11-08 18:32:14,806 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [562673972] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 18:32:14,806 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-08 18:32:14,807 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2024-11-08 18:32:14,807 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [749314777] [2024-11-08 18:32:14,807 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-08 18:32:14,808 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-08 18:32:14,808 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:32:14,809 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-08 18:32:14,809 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2024-11-08 18:32:14,809 INFO L87 Difference]: Start difference. First operand 472 states and 563 transitions. Second operand has 10 states, 10 states have (on average 13.7) internal successors, (137), 10 states have internal predecessors, (137), 2 states have call successors, (4), 2 states have call predecessors, (4), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-08 18:32:15,348 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:32:15,348 INFO L93 Difference]: Finished difference Result 480 states and 573 transitions. [2024-11-08 18:32:15,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-08 18:32:15,349 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 13.7) internal successors, (137), 10 states have internal predecessors, (137), 2 states have call successors, (4), 2 states have call predecessors, (4), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) Word has length 136 [2024-11-08 18:32:15,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:32:15,354 INFO L225 Difference]: With dead ends: 480 [2024-11-08 18:32:15,354 INFO L226 Difference]: Without dead ends: 478 [2024-11-08 18:32:15,355 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 275 GetRequests, 262 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=80, Invalid=130, Unknown=0, NotChecked=0, Total=210 [2024-11-08 18:32:15,356 INFO L432 NwaCegarLoop]: 280 mSDtfsCounter, 6 mSDsluCounter, 1383 mSDsCounter, 0 mSdLazyCounter, 87 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 1663 SdHoareTripleChecker+Invalid, 97 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 87 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-08 18:32:15,357 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 1663 Invalid, 97 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 87 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-08 18:32:15,359 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 478 states. [2024-11-08 18:32:15,370 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 478 to 476. [2024-11-08 18:32:15,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 476 states, 462 states have (on average 1.1926406926406927) internal successors, (551), 467 states have internal predecessors, (551), 8 states have call successors, (8), 3 states have call predecessors, (8), 4 states have return successors, (9), 8 states have call predecessors, (9), 8 states have call successors, (9) [2024-11-08 18:32:15,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 476 states to 476 states and 568 transitions. [2024-11-08 18:32:15,374 INFO L78 Accepts]: Start accepts. Automaton has 476 states and 568 transitions. Word has length 136 [2024-11-08 18:32:15,374 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:32:15,374 INFO L471 AbstractCegarLoop]: Abstraction has 476 states and 568 transitions. [2024-11-08 18:32:15,374 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 13.7) internal successors, (137), 10 states have internal predecessors, (137), 2 states have call successors, (4), 2 states have call predecessors, (4), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-08 18:32:15,375 INFO L276 IsEmpty]: Start isEmpty. Operand 476 states and 568 transitions. [2024-11-08 18:32:15,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2024-11-08 18:32:15,377 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:32:15,377 INFO L215 NwaCegarLoop]: trace histogram [10, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:32:15,412 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2317ccc4-f6de-4123-b8bd-49374e0558f2/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2024-11-08 18:32:15,585 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2317ccc4-f6de-4123-b8bd-49374e0558f2/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:32:15,586 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-08 18:32:15,586 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:32:15,586 INFO L85 PathProgramCache]: Analyzing trace with hash 1469195465, now seen corresponding path program 2 times [2024-11-08 18:32:15,587 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:32:15,587 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1415246333] [2024-11-08 18:32:15,588 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-08 18:32:15,588 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:32:15,588 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2317ccc4-f6de-4123-b8bd-49374e0558f2/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:32:15,589 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2317ccc4-f6de-4123-b8bd-49374e0558f2/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 18:32:15,591 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2317ccc4-f6de-4123-b8bd-49374e0558f2/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-11-08 18:32:16,572 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-08 18:32:16,572 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-08 18:32:16,592 INFO L255 TraceCheckSpWp]: Trace formula consists of 663 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-08 18:32:16,597 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:32:16,804 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 39 proven. 10 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-11-08 18:32:16,805 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 18:32:17,292 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 39 proven. 10 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-11-08 18:32:17,293 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:32:17,293 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1415246333] [2024-11-08 18:32:17,293 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1415246333] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 18:32:17,293 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-08 18:32:17,293 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 14 [2024-11-08 18:32:17,293 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [134788697] [2024-11-08 18:32:17,293 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-08 18:32:17,294 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-08 18:32:17,294 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:32:17,295 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-08 18:32:17,295 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=121, Unknown=0, NotChecked=0, Total=182 [2024-11-08 18:32:17,296 INFO L87 Difference]: Start difference. First operand 476 states and 568 transitions. Second operand has 14 states, 14 states have (on average 9.785714285714286) internal successors, (137), 14 states have internal predecessors, (137), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-08 18:32:18,195 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:32:18,195 INFO L93 Difference]: Finished difference Result 488 states and 584 transitions. [2024-11-08 18:32:18,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-08 18:32:18,197 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 9.785714285714286) internal successors, (137), 14 states have internal predecessors, (137), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 140 [2024-11-08 18:32:18,197 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:32:18,199 INFO L225 Difference]: With dead ends: 488 [2024-11-08 18:32:18,199 INFO L226 Difference]: Without dead ends: 484 [2024-11-08 18:32:18,199 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 287 GetRequests, 266 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=182, Invalid=324, Unknown=0, NotChecked=0, Total=506 [2024-11-08 18:32:18,200 INFO L432 NwaCegarLoop]: 279 mSDtfsCounter, 8 mSDsluCounter, 1935 mSDsCounter, 0 mSdLazyCounter, 107 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 2214 SdHoareTripleChecker+Invalid, 115 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 107 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-08 18:32:18,201 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 2214 Invalid, 115 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 107 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-08 18:32:18,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 484 states. [2024-11-08 18:32:18,213 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 484 to 482. [2024-11-08 18:32:18,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 482 states, 468 states have (on average 1.1987179487179487) internal successors, (561), 473 states have internal predecessors, (561), 8 states have call successors, (8), 3 states have call predecessors, (8), 4 states have return successors, (9), 8 states have call predecessors, (9), 8 states have call successors, (9) [2024-11-08 18:32:18,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 482 states to 482 states and 578 transitions. [2024-11-08 18:32:18,216 INFO L78 Accepts]: Start accepts. Automaton has 482 states and 578 transitions. Word has length 140 [2024-11-08 18:32:18,216 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:32:18,217 INFO L471 AbstractCegarLoop]: Abstraction has 482 states and 578 transitions. [2024-11-08 18:32:18,217 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 9.785714285714286) internal successors, (137), 14 states have internal predecessors, (137), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-08 18:32:18,217 INFO L276 IsEmpty]: Start isEmpty. Operand 482 states and 578 transitions. [2024-11-08 18:32:18,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2024-11-08 18:32:18,219 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:32:18,219 INFO L215 NwaCegarLoop]: trace histogram [16, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:32:18,264 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2317ccc4-f6de-4123-b8bd-49374e0558f2/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2024-11-08 18:32:18,420 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2317ccc4-f6de-4123-b8bd-49374e0558f2/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:32:18,421 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2024-11-08 18:32:18,421 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:32:18,421 INFO L85 PathProgramCache]: Analyzing trace with hash 349312137, now seen corresponding path program 3 times [2024-11-08 18:32:18,422 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:32:18,422 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2135904725] [2024-11-08 18:32:18,422 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-08 18:32:18,422 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:32:18,422 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2317ccc4-f6de-4123-b8bd-49374e0558f2/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:32:18,423 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2317ccc4-f6de-4123-b8bd-49374e0558f2/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 18:32:18,425 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2317ccc4-f6de-4123-b8bd-49374e0558f2/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process