./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test7-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e873d2ae-f983-47fb-8d96-6a2fc4d3444a/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e873d2ae-f983-47fb-8d96-6a2fc4d3444a/bin/uautomizer-verify-aQ6SnzHsRB/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e873d2ae-f983-47fb-8d96-6a2fc4d3444a/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e873d2ae-f983-47fb-8d96-6a2fc4d3444a/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test7-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e873d2ae-f983-47fb-8d96-6a2fc4d3444a/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e873d2ae-f983-47fb-8d96-6a2fc4d3444a/bin/uautomizer-verify-aQ6SnzHsRB --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 23c0dee81707c82be8d9645ea65556f17c2a25b7864c310b805b07f657c0bc23 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 04:58:47,581 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 04:58:47,694 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e873d2ae-f983-47fb-8d96-6a2fc4d3444a/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-11-28 04:58:47,701 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 04:58:47,701 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 04:58:47,738 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 04:58:47,740 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 04:58:47,741 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 04:58:47,741 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 04:58:47,741 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 04:58:47,742 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 04:58:47,742 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 04:58:47,742 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 04:58:47,743 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 04:58:47,743 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 04:58:47,744 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 04:58:47,744 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 04:58:47,745 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 04:58:47,745 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 04:58:47,745 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 04:58:47,745 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-28 04:58:47,745 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-28 04:58:47,745 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-28 04:58:47,745 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 04:58:47,745 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-28 04:58:47,745 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-28 04:58:47,745 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 04:58:47,745 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 04:58:47,745 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 04:58:47,746 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 04:58:47,746 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 04:58:47,746 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 04:58:47,746 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 04:58:47,746 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 04:58:47,746 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 04:58:47,746 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 04:58:47,746 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 04:58:47,746 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 04:58:47,746 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 04:58:47,746 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 04:58:47,747 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 04:58:47,747 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-28 04:58:47,747 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-28 04:58:47,747 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 04:58:47,748 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 04:58:47,748 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 04:58:47,748 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 04:58:47,749 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e873d2ae-f983-47fb-8d96-6a2fc4d3444a/bin/uautomizer-verify-aQ6SnzHsRB Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 23c0dee81707c82be8d9645ea65556f17c2a25b7864c310b805b07f657c0bc23 [2024-11-28 04:58:48,106 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 04:58:48,121 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 04:58:48,124 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 04:58:48,125 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 04:58:48,126 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 04:58:48,127 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e873d2ae-f983-47fb-8d96-6a2fc4d3444a/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test7-1.i [2024-11-28 04:58:51,175 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e873d2ae-f983-47fb-8d96-6a2fc4d3444a/bin/uautomizer-verify-aQ6SnzHsRB/data/1da062d12/dd7ddc437254440f8895489e778f89ef/FLAGcb4fca522 [2024-11-28 04:58:51,613 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 04:58:51,613 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e873d2ae-f983-47fb-8d96-6a2fc4d3444a/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test7-1.i [2024-11-28 04:58:51,641 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e873d2ae-f983-47fb-8d96-6a2fc4d3444a/bin/uautomizer-verify-aQ6SnzHsRB/data/1da062d12/dd7ddc437254440f8895489e778f89ef/FLAGcb4fca522 [2024-11-28 04:58:51,656 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e873d2ae-f983-47fb-8d96-6a2fc4d3444a/bin/uautomizer-verify-aQ6SnzHsRB/data/1da062d12/dd7ddc437254440f8895489e778f89ef [2024-11-28 04:58:51,659 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 04:58:51,660 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 04:58:51,662 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 04:58:51,662 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 04:58:51,667 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 04:58:51,668 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:58:51" (1/1) ... [2024-11-28 04:58:51,668 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3a397d93 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:58:51, skipping insertion in model container [2024-11-28 04:58:51,669 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:58:51" (1/1) ... [2024-11-28 04:58:51,711 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 04:58:52,165 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 04:58:52,213 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 04:58:52,221 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 04:58:52,228 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 04:58:52,235 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 04:58:52,270 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 04:58:52,271 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 04:58:52,274 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 04:58:52,274 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 04:58:52,277 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 04:58:52,279 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 04:58:52,280 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 04:58:52,281 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 04:58:52,286 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 04:58:52,293 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 04:58:52,312 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) [2024-11-28 04:58:52,312 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@ff92959 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:58:52, skipping insertion in model container [2024-11-28 04:58:52,312 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 04:58:52,313 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2024-11-28 04:58:52,321 INFO L158 Benchmark]: Toolchain (without parser) took 653.60ms. Allocated memory is still 117.4MB. Free memory was 91.6MB in the beginning and 71.8MB in the end (delta: 19.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-28 04:58:52,321 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 167.8MB. Free memory is still 102.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 04:58:52,322 INFO L158 Benchmark]: CACSL2BoogieTranslator took 651.13ms. Allocated memory is still 117.4MB. Free memory was 91.2MB in the beginning and 71.8MB in the end (delta: 19.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-28 04:58:52,323 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32ms. Allocated memory is still 167.8MB. Free memory is still 102.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 651.13ms. Allocated memory is still 117.4MB. Free memory was 91.2MB in the beginning and 71.8MB in the end (delta: 19.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 727]: Unsupported Syntax Found a cast between two array/pointer types of different sizes while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e873d2ae-f983-47fb-8d96-6a2fc4d3444a/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e873d2ae-f983-47fb-8d96-6a2fc4d3444a/bin/uautomizer-verify-aQ6SnzHsRB/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e873d2ae-f983-47fb-8d96-6a2fc4d3444a/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e873d2ae-f983-47fb-8d96-6a2fc4d3444a/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test7-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e873d2ae-f983-47fb-8d96-6a2fc4d3444a/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e873d2ae-f983-47fb-8d96-6a2fc4d3444a/bin/uautomizer-verify-aQ6SnzHsRB --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 23c0dee81707c82be8d9645ea65556f17c2a25b7864c310b805b07f657c0bc23 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 04:58:55,317 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 04:58:55,465 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e873d2ae-f983-47fb-8d96-6a2fc4d3444a/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2024-11-28 04:58:55,474 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 04:58:55,474 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 04:58:55,547 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 04:58:55,548 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 04:58:55,552 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 04:58:55,553 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 04:58:55,553 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 04:58:55,553 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 04:58:55,553 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 04:58:55,553 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 04:58:55,554 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 04:58:55,554 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 04:58:55,554 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 04:58:55,554 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 04:58:55,554 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 04:58:55,554 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 04:58:55,555 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 04:58:55,555 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-28 04:58:55,557 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-28 04:58:55,557 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-28 04:58:55,558 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 04:58:55,558 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-28 04:58:55,558 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-28 04:58:55,558 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-28 04:58:55,558 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-28 04:58:55,558 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 04:58:55,558 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 04:58:55,558 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 04:58:55,559 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 04:58:55,559 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 04:58:55,559 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 04:58:55,559 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 04:58:55,559 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 04:58:55,559 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 04:58:55,559 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 04:58:55,559 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 04:58:55,559 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 04:58:55,560 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 04:58:55,560 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 04:58:55,560 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 04:58:55,560 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2024-11-28 04:58:55,560 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-28 04:58:55,560 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 04:58:55,560 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 04:58:55,560 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 04:58:55,561 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 04:58:55,561 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e873d2ae-f983-47fb-8d96-6a2fc4d3444a/bin/uautomizer-verify-aQ6SnzHsRB Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 23c0dee81707c82be8d9645ea65556f17c2a25b7864c310b805b07f657c0bc23 [2024-11-28 04:58:55,985 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 04:58:56,003 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 04:58:56,006 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 04:58:56,007 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 04:58:56,008 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 04:58:56,011 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e873d2ae-f983-47fb-8d96-6a2fc4d3444a/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test7-1.i [2024-11-28 04:58:59,547 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e873d2ae-f983-47fb-8d96-6a2fc4d3444a/bin/uautomizer-verify-aQ6SnzHsRB/data/59d43d72c/0746e2551c6f4560832fe1e14023653f/FLAG88a356fad [2024-11-28 04:59:00,099 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 04:59:00,103 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e873d2ae-f983-47fb-8d96-6a2fc4d3444a/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test7-1.i [2024-11-28 04:59:00,133 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e873d2ae-f983-47fb-8d96-6a2fc4d3444a/bin/uautomizer-verify-aQ6SnzHsRB/data/59d43d72c/0746e2551c6f4560832fe1e14023653f/FLAG88a356fad [2024-11-28 04:59:00,159 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e873d2ae-f983-47fb-8d96-6a2fc4d3444a/bin/uautomizer-verify-aQ6SnzHsRB/data/59d43d72c/0746e2551c6f4560832fe1e14023653f [2024-11-28 04:59:00,163 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 04:59:00,166 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 04:59:00,169 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 04:59:00,169 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 04:59:00,175 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 04:59:00,176 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:59:00" (1/1) ... [2024-11-28 04:59:00,177 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@694e1729 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:59:00, skipping insertion in model container [2024-11-28 04:59:00,179 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:59:00" (1/1) ... [2024-11-28 04:59:00,250 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 04:59:00,774 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 04:59:00,840 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 04:59:00,850 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 04:59:00,866 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 04:59:00,878 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 04:59:00,929 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 04:59:00,930 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 04:59:00,934 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 04:59:00,935 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 04:59:00,939 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 04:59:00,942 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 04:59:00,943 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 04:59:00,945 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 04:59:00,952 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 04:59:00,959 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 04:59:00,977 INFO L197 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2024-11-28 04:59:00,996 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 04:59:01,062 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 04:59:01,087 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 04:59:01,090 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 04:59:01,094 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 04:59:01,102 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 04:59:01,154 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 04:59:01,158 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 04:59:01,166 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 04:59:01,167 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 04:59:01,173 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 04:59:01,174 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 04:59:01,175 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 04:59:01,176 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 04:59:01,182 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-28 04:59:01,186 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 04:59:01,194 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 04:59:01,306 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 04:59:01,364 INFO L204 MainTranslator]: Completed translation [2024-11-28 04:59:01,364 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:59:01 WrapperNode [2024-11-28 04:59:01,364 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 04:59:01,366 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 04:59:01,366 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 04:59:01,366 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 04:59:01,374 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:59:01" (1/1) ... [2024-11-28 04:59:01,407 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:59:01" (1/1) ... [2024-11-28 04:59:01,484 INFO L138 Inliner]: procedures = 179, calls = 272, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 1002 [2024-11-28 04:59:01,484 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 04:59:01,485 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 04:59:01,485 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 04:59:01,485 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 04:59:01,501 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:59:01" (1/1) ... [2024-11-28 04:59:01,502 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:59:01" (1/1) ... [2024-11-28 04:59:01,526 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:59:01" (1/1) ... [2024-11-28 04:59:01,642 INFO L175 MemorySlicer]: Split 253 memory accesses to 3 slices as follows [2, 217, 34]. 86 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0]. The 54 writes are split as follows [0, 50, 4]. [2024-11-28 04:59:01,646 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:59:01" (1/1) ... [2024-11-28 04:59:01,646 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:59:01" (1/1) ... [2024-11-28 04:59:01,722 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:59:01" (1/1) ... [2024-11-28 04:59:01,729 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:59:01" (1/1) ... [2024-11-28 04:59:01,753 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:59:01" (1/1) ... [2024-11-28 04:59:01,761 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:59:01" (1/1) ... [2024-11-28 04:59:01,773 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:59:01" (1/1) ... [2024-11-28 04:59:01,786 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 04:59:01,789 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 04:59:01,790 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 04:59:01,791 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 04:59:01,792 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:59:01" (1/1) ... [2024-11-28 04:59:01,803 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 04:59:01,822 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e873d2ae-f983-47fb-8d96-6a2fc4d3444a/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:59:01,840 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e873d2ae-f983-47fb-8d96-6a2fc4d3444a/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 04:59:01,848 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e873d2ae-f983-47fb-8d96-6a2fc4d3444a/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 04:59:01,877 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2024-11-28 04:59:01,877 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2024-11-28 04:59:01,877 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#0 [2024-11-28 04:59:01,878 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#1 [2024-11-28 04:59:01,878 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#2 [2024-11-28 04:59:01,878 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2024-11-28 04:59:01,878 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2024-11-28 04:59:01,878 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2024-11-28 04:59:01,878 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#0 [2024-11-28 04:59:01,878 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#1 [2024-11-28 04:59:01,878 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#2 [2024-11-28 04:59:01,878 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#0 [2024-11-28 04:59:01,879 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#1 [2024-11-28 04:59:01,879 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#2 [2024-11-28 04:59:01,879 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-28 04:59:01,879 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 04:59:01,879 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-28 04:59:01,879 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-28 04:59:01,879 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-28 04:59:01,879 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-28 04:59:01,879 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-28 04:59:01,879 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-28 04:59:01,879 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-28 04:59:01,879 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-28 04:59:01,880 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2024-11-28 04:59:01,880 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2024-11-28 04:59:01,880 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2024-11-28 04:59:01,880 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-28 04:59:01,880 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2024-11-28 04:59:01,880 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2024-11-28 04:59:01,880 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 04:59:01,880 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 04:59:02,133 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 04:59:02,135 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 04:59:02,159 WARN L773 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2024-11-28 04:59:02,198 WARN L773 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2024-11-28 04:59:02,230 WARN L773 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2024-11-28 04:59:08,250 INFO L? ?]: Removed 1074 outVars from TransFormulas that were not future-live. [2024-11-28 04:59:08,250 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 04:59:08,305 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 04:59:08,309 INFO L312 CfgBuilder]: Removed 36 assume(true) statements. [2024-11-28 04:59:08,309 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:59:08 BoogieIcfgContainer [2024-11-28 04:59:08,310 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 04:59:08,313 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 04:59:08,313 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 04:59:08,320 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 04:59:08,321 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 04:59:00" (1/3) ... [2024-11-28 04:59:08,322 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5883654 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 04:59:08, skipping insertion in model container [2024-11-28 04:59:08,323 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:59:01" (2/3) ... [2024-11-28 04:59:08,323 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5883654 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 04:59:08, skipping insertion in model container [2024-11-28 04:59:08,325 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:59:08" (3/3) ... [2024-11-28 04:59:08,327 INFO L128 eAbstractionObserver]: Analyzing ICFG uthash_OAT_test7-1.i [2024-11-28 04:59:08,346 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 04:59:08,348 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG uthash_OAT_test7-1.i that has 5 procedures, 1063 locations, 1 initial locations, 38 loop locations, and 523 error locations. [2024-11-28 04:59:08,444 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 04:59:08,465 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;@79504935, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 04:59:08,465 INFO L334 AbstractCegarLoop]: Starting to check reachability of 523 error locations. [2024-11-28 04:59:08,479 INFO L276 IsEmpty]: Start isEmpty. Operand has 1053 states, 525 states have (on average 2.224761904761905) internal successors, (1168), 1046 states have internal predecessors, (1168), 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) [2024-11-28 04:59:08,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2024-11-28 04:59:08,485 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:59:08,486 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1] [2024-11-28 04:59:08,487 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 520 more)] === [2024-11-28 04:59:08,494 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:59:08,495 INFO L85 PathProgramCache]: Analyzing trace with hash 65605, now seen corresponding path program 1 times [2024-11-28 04:59:08,507 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:59:08,507 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [131858967] [2024-11-28 04:59:08,508 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:59:08,509 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:59:08,509 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e873d2ae-f983-47fb-8d96-6a2fc4d3444a/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:59:08,512 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e873d2ae-f983-47fb-8d96-6a2fc4d3444a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:59:08,517 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e873d2ae-f983-47fb-8d96-6a2fc4d3444a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-28 04:59:08,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:59:08,716 INFO L256 TraceCheckSpWp]: Trace formula consists of 23 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-28 04:59:08,723 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:59:08,764 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2024-11-28 04:59:08,794 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:59:08,795 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:59:08,796 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:59:08,796 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [131858967] [2024-11-28 04:59:08,797 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [131858967] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:59:08,797 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:59:08,797 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 04:59:08,799 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [654523530] [2024-11-28 04:59:08,800 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:59:08,804 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:59:08,805 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:59:08,833 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:59:08,834 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:59:08,840 INFO L87 Difference]: Start difference. First operand has 1053 states, 525 states have (on average 2.224761904761905) internal successors, (1168), 1046 states have internal predecessors, (1168), 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 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:59:11,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:59:11,256 INFO L93 Difference]: Finished difference Result 1044 states and 1100 transitions. [2024-11-28 04:59:11,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:59:11,260 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2024-11-28 04:59:11,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:59:11,289 INFO L225 Difference]: With dead ends: 1044 [2024-11-28 04:59:11,289 INFO L226 Difference]: Without dead ends: 1042 [2024-11-28 04:59:11,291 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:59:11,297 INFO L435 NwaCegarLoop]: 623 mSDtfsCounter, 958 mSDsluCounter, 58 mSDsCounter, 0 mSdLazyCounter, 541 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 961 SdHoareTripleChecker+Valid, 681 SdHoareTripleChecker+Invalid, 557 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 541 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-11-28 04:59:11,302 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [961 Valid, 681 Invalid, 557 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 541 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-11-28 04:59:11,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1042 states. [2024-11-28 04:59:11,374 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1042 to 1034. [2024-11-28 04:59:11,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1034 states, 525 states have (on average 2.060952380952381) internal successors, (1082), 1028 states have internal predecessors, (1082), 5 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-28 04:59:11,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1034 states to 1034 states and 1090 transitions. [2024-11-28 04:59:11,386 INFO L78 Accepts]: Start accepts. Automaton has 1034 states and 1090 transitions. Word has length 3 [2024-11-28 04:59:11,386 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:59:11,386 INFO L471 AbstractCegarLoop]: Abstraction has 1034 states and 1090 transitions. [2024-11-28 04:59:11,387 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:59:11,387 INFO L276 IsEmpty]: Start isEmpty. Operand 1034 states and 1090 transitions. [2024-11-28 04:59:11,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2024-11-28 04:59:11,387 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:59:11,387 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1] [2024-11-28 04:59:11,398 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e873d2ae-f983-47fb-8d96-6a2fc4d3444a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-28 04:59:11,588 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e873d2ae-f983-47fb-8d96-6a2fc4d3444a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:59:11,588 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 520 more)] === [2024-11-28 04:59:11,589 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:59:11,589 INFO L85 PathProgramCache]: Analyzing trace with hash 65606, now seen corresponding path program 1 times [2024-11-28 04:59:11,589 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:59:11,589 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1552057132] [2024-11-28 04:59:11,589 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:59:11,590 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:59:11,590 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e873d2ae-f983-47fb-8d96-6a2fc4d3444a/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:59:11,592 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e873d2ae-f983-47fb-8d96-6a2fc4d3444a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:59:11,593 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e873d2ae-f983-47fb-8d96-6a2fc4d3444a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-28 04:59:11,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:59:11,719 INFO L256 TraceCheckSpWp]: Trace formula consists of 23 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-28 04:59:11,721 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:59:11,736 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-11-28 04:59:11,755 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:59:11,755 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:59:11,755 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:59:11,755 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1552057132] [2024-11-28 04:59:11,755 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1552057132] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:59:11,756 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:59:11,756 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 04:59:11,756 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [65845720] [2024-11-28 04:59:11,756 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:59:11,757 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:59:11,757 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:59:11,758 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:59:11,758 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:59:11,758 INFO L87 Difference]: Start difference. First operand 1034 states and 1090 transitions. Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:59:15,133 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:59:15,133 INFO L93 Difference]: Finished difference Result 1432 states and 1520 transitions. [2024-11-28 04:59:15,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:59:15,134 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2024-11-28 04:59:15,134 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:59:15,140 INFO L225 Difference]: With dead ends: 1432 [2024-11-28 04:59:15,141 INFO L226 Difference]: Without dead ends: 1432 [2024-11-28 04:59:15,141 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:59:15,142 INFO L435 NwaCegarLoop]: 894 mSDtfsCounter, 427 mSDsluCounter, 568 mSDsCounter, 0 mSdLazyCounter, 696 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 427 SdHoareTripleChecker+Valid, 1462 SdHoareTripleChecker+Invalid, 702 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 696 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2024-11-28 04:59:15,142 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [427 Valid, 1462 Invalid, 702 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 696 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2024-11-28 04:59:15,149 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1432 states. [2024-11-28 04:59:15,204 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1432 to 1243. [2024-11-28 04:59:15,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1243 states, 735 states have (on average 2.0476190476190474) internal successors, (1505), 1237 states have internal predecessors, (1505), 5 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-28 04:59:15,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1243 states to 1243 states and 1513 transitions. [2024-11-28 04:59:15,219 INFO L78 Accepts]: Start accepts. Automaton has 1243 states and 1513 transitions. Word has length 3 [2024-11-28 04:59:15,219 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:59:15,219 INFO L471 AbstractCegarLoop]: Abstraction has 1243 states and 1513 transitions. [2024-11-28 04:59:15,220 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:59:15,220 INFO L276 IsEmpty]: Start isEmpty. Operand 1243 states and 1513 transitions. [2024-11-28 04:59:15,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-28 04:59:15,220 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:59:15,220 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:59:15,229 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e873d2ae-f983-47fb-8d96-6a2fc4d3444a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-28 04:59:15,421 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e873d2ae-f983-47fb-8d96-6a2fc4d3444a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:59:15,421 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 520 more)] === [2024-11-28 04:59:15,421 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:59:15,421 INFO L85 PathProgramCache]: Analyzing trace with hash 1329215633, now seen corresponding path program 1 times [2024-11-28 04:59:15,422 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:59:15,422 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [370249311] [2024-11-28 04:59:15,422 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:59:15,422 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:59:15,422 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e873d2ae-f983-47fb-8d96-6a2fc4d3444a/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:59:15,427 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e873d2ae-f983-47fb-8d96-6a2fc4d3444a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:59:15,428 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e873d2ae-f983-47fb-8d96-6a2fc4d3444a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-28 04:59:15,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:59:15,585 INFO L256 TraceCheckSpWp]: Trace formula consists of 60 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-28 04:59:15,588 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:59:15,597 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-11-28 04:59:15,694 INFO L349 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2024-11-28 04:59:15,695 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 12 treesize of output 18 [2024-11-28 04:59:15,813 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:59:15,813 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:59:15,814 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:59:15,814 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [370249311] [2024-11-28 04:59:15,814 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [370249311] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:59:15,814 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:59:15,814 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:59:15,814 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [792136372] [2024-11-28 04:59:15,814 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:59:15,814 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 04:59:15,815 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:59:15,818 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 04:59:15,818 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 04:59:15,818 INFO L87 Difference]: Start difference. First operand 1243 states and 1513 transitions. Second operand has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:59:22,385 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:59:22,385 INFO L93 Difference]: Finished difference Result 2116 states and 2252 transitions. [2024-11-28 04:59:22,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 04:59:22,386 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2024-11-28 04:59:22,386 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:59:22,394 INFO L225 Difference]: With dead ends: 2116 [2024-11-28 04:59:22,395 INFO L226 Difference]: Without dead ends: 2116 [2024-11-28 04:59:22,395 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 04:59:22,396 INFO L435 NwaCegarLoop]: 1003 mSDtfsCounter, 1148 mSDsluCounter, 1136 mSDsCounter, 0 mSdLazyCounter, 1539 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1148 SdHoareTripleChecker+Valid, 2139 SdHoareTripleChecker+Invalid, 1550 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 1539 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.4s IncrementalHoareTripleChecker+Time [2024-11-28 04:59:22,396 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1148 Valid, 2139 Invalid, 1550 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 1539 Invalid, 0 Unknown, 0 Unchecked, 6.4s Time] [2024-11-28 04:59:22,400 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2116 states. [2024-11-28 04:59:22,433 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2116 to 1392. [2024-11-28 04:59:22,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1392 states, 884 states have (on average 2.0271493212669682) internal successors, (1792), 1386 states have internal predecessors, (1792), 5 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-28 04:59:22,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1392 states to 1392 states and 1800 transitions. [2024-11-28 04:59:22,445 INFO L78 Accepts]: Start accepts. Automaton has 1392 states and 1800 transitions. Word has length 8 [2024-11-28 04:59:22,445 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:59:22,446 INFO L471 AbstractCegarLoop]: Abstraction has 1392 states and 1800 transitions. [2024-11-28 04:59:22,446 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:59:22,446 INFO L276 IsEmpty]: Start isEmpty. Operand 1392 states and 1800 transitions. [2024-11-28 04:59:22,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-11-28 04:59:22,447 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:59:22,447 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:59:22,458 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e873d2ae-f983-47fb-8d96-6a2fc4d3444a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-28 04:59:22,647 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e873d2ae-f983-47fb-8d96-6a2fc4d3444a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:59:22,648 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 520 more)] === [2024-11-28 04:59:22,649 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:59:22,649 INFO L85 PathProgramCache]: Analyzing trace with hash -1743988334, now seen corresponding path program 1 times [2024-11-28 04:59:22,650 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:59:22,651 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [382037443] [2024-11-28 04:59:22,652 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:59:22,652 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:59:22,652 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e873d2ae-f983-47fb-8d96-6a2fc4d3444a/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:59:22,654 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e873d2ae-f983-47fb-8d96-6a2fc4d3444a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:59:22,660 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e873d2ae-f983-47fb-8d96-6a2fc4d3444a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-28 04:59:22,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:59:22,820 INFO L256 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-28 04:59:22,822 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:59:22,829 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2024-11-28 04:59:22,847 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:59:22,848 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:59:22,848 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:59:22,848 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [382037443] [2024-11-28 04:59:22,848 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [382037443] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:59:22,848 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:59:22,848 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 04:59:22,848 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1600809801] [2024-11-28 04:59:22,848 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:59:22,848 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:59:22,849 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:59:22,849 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:59:22,849 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:59:22,849 INFO L87 Difference]: Start difference. First operand 1392 states and 1800 transitions. Second operand has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 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) [2024-11-28 04:59:25,604 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:59:25,604 INFO L93 Difference]: Finished difference Result 1929 states and 2563 transitions. [2024-11-28 04:59:25,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:59:25,609 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 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 9 [2024-11-28 04:59:25,610 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:59:25,618 INFO L225 Difference]: With dead ends: 1929 [2024-11-28 04:59:25,618 INFO L226 Difference]: Without dead ends: 1929 [2024-11-28 04:59:25,618 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:59:25,621 INFO L435 NwaCegarLoop]: 952 mSDtfsCounter, 935 mSDsluCounter, 249 mSDsCounter, 0 mSdLazyCounter, 747 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 938 SdHoareTripleChecker+Valid, 1201 SdHoareTripleChecker+Invalid, 797 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 747 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2024-11-28 04:59:25,622 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [938 Valid, 1201 Invalid, 797 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 747 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2024-11-28 04:59:25,629 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1929 states. [2024-11-28 04:59:25,658 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1929 to 1345. [2024-11-28 04:59:25,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1345 states, 884 states have (on average 1.9615384615384615) internal successors, (1734), 1339 states have internal predecessors, (1734), 5 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-28 04:59:25,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1345 states to 1345 states and 1742 transitions. [2024-11-28 04:59:25,666 INFO L78 Accepts]: Start accepts. Automaton has 1345 states and 1742 transitions. Word has length 9 [2024-11-28 04:59:25,666 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:59:25,666 INFO L471 AbstractCegarLoop]: Abstraction has 1345 states and 1742 transitions. [2024-11-28 04:59:25,666 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 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) [2024-11-28 04:59:25,667 INFO L276 IsEmpty]: Start isEmpty. Operand 1345 states and 1742 transitions. [2024-11-28 04:59:25,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-11-28 04:59:25,667 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:59:25,667 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:59:25,679 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e873d2ae-f983-47fb-8d96-6a2fc4d3444a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-28 04:59:25,868 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e873d2ae-f983-47fb-8d96-6a2fc4d3444a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:59:25,869 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 520 more)] === [2024-11-28 04:59:25,869 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:59:25,869 INFO L85 PathProgramCache]: Analyzing trace with hash -1743988333, now seen corresponding path program 1 times [2024-11-28 04:59:25,869 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:59:25,869 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1278753823] [2024-11-28 04:59:25,869 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:59:25,870 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:59:25,870 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e873d2ae-f983-47fb-8d96-6a2fc4d3444a/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:59:25,871 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e873d2ae-f983-47fb-8d96-6a2fc4d3444a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:59:25,872 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e873d2ae-f983-47fb-8d96-6a2fc4d3444a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-28 04:59:26,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:59:26,014 INFO L256 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-28 04:59:26,016 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:59:26,029 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-11-28 04:59:26,081 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:59:26,085 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:59:26,085 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:59:26,085 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1278753823] [2024-11-28 04:59:26,085 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1278753823] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:59:26,085 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:59:26,085 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 04:59:26,086 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [545951096] [2024-11-28 04:59:26,086 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:59:26,086 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:59:26,086 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:59:26,087 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:59:26,087 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:59:26,087 INFO L87 Difference]: Start difference. First operand 1345 states and 1742 transitions. Second operand has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 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) [2024-11-28 04:59:29,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:59:29,372 INFO L93 Difference]: Finished difference Result 2037 states and 2670 transitions. [2024-11-28 04:59:29,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:59:29,373 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 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 9 [2024-11-28 04:59:29,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:59:29,381 INFO L225 Difference]: With dead ends: 2037 [2024-11-28 04:59:29,381 INFO L226 Difference]: Without dead ends: 2037 [2024-11-28 04:59:29,381 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:59:29,382 INFO L435 NwaCegarLoop]: 1141 mSDtfsCounter, 704 mSDsluCounter, 419 mSDsCounter, 0 mSdLazyCounter, 736 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 704 SdHoareTripleChecker+Valid, 1560 SdHoareTripleChecker+Invalid, 749 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 736 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2024-11-28 04:59:29,382 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [704 Valid, 1560 Invalid, 749 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 736 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2024-11-28 04:59:29,386 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2037 states. [2024-11-28 04:59:29,416 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2037 to 1372. [2024-11-28 04:59:29,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1372 states, 921 states have (on average 1.9402823018458197) internal successors, (1787), 1366 states have internal predecessors, (1787), 5 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-28 04:59:29,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1372 states to 1372 states and 1795 transitions. [2024-11-28 04:59:29,424 INFO L78 Accepts]: Start accepts. Automaton has 1372 states and 1795 transitions. Word has length 9 [2024-11-28 04:59:29,424 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:59:29,424 INFO L471 AbstractCegarLoop]: Abstraction has 1372 states and 1795 transitions. [2024-11-28 04:59:29,425 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 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) [2024-11-28 04:59:29,425 INFO L276 IsEmpty]: Start isEmpty. Operand 1372 states and 1795 transitions. [2024-11-28 04:59:29,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-11-28 04:59:29,425 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:59:29,425 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:59:29,436 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e873d2ae-f983-47fb-8d96-6a2fc4d3444a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-28 04:59:29,626 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e873d2ae-f983-47fb-8d96-6a2fc4d3444a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:59:29,626 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 520 more)] === [2024-11-28 04:59:29,626 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:59:29,626 INFO L85 PathProgramCache]: Analyzing trace with hash 174124425, now seen corresponding path program 1 times [2024-11-28 04:59:29,626 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:59:29,626 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [339282505] [2024-11-28 04:59:29,627 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:59:29,627 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:59:29,627 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e873d2ae-f983-47fb-8d96-6a2fc4d3444a/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:59:29,630 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e873d2ae-f983-47fb-8d96-6a2fc4d3444a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:59:29,632 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e873d2ae-f983-47fb-8d96-6a2fc4d3444a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-28 04:59:29,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:59:29,789 INFO L256 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-28 04:59:29,791 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:59:29,886 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:59:29,886 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:59:29,887 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:59:29,887 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [339282505] [2024-11-28 04:59:29,887 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [339282505] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:59:29,887 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:59:29,887 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 04:59:29,887 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1504432037] [2024-11-28 04:59:29,887 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:59:29,888 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 04:59:29,888 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:59:29,888 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 04:59:29,888 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 04:59:29,889 INFO L87 Difference]: Start difference. First operand 1372 states and 1795 transitions. Second operand has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 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) [2024-11-28 04:59:30,735 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:59:30,735 INFO L93 Difference]: Finished difference Result 1815 states and 2343 transitions. [2024-11-28 04:59:30,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 04:59:30,736 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 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 13 [2024-11-28 04:59:30,736 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:59:30,741 INFO L225 Difference]: With dead ends: 1815 [2024-11-28 04:59:30,742 INFO L226 Difference]: Without dead ends: 1815 [2024-11-28 04:59:30,742 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 04:59:30,743 INFO L435 NwaCegarLoop]: 1092 mSDtfsCounter, 454 mSDsluCounter, 1936 mSDsCounter, 0 mSdLazyCounter, 251 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 454 SdHoareTripleChecker+Valid, 3028 SdHoareTripleChecker+Invalid, 255 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 251 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-28 04:59:30,743 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [454 Valid, 3028 Invalid, 255 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 251 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-28 04:59:30,747 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1815 states. [2024-11-28 04:59:30,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1815 to 1624. [2024-11-28 04:59:30,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1624 states, 1173 states have (on average 1.9573742540494459) internal successors, (2296), 1618 states have internal predecessors, (2296), 5 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-28 04:59:30,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1624 states to 1624 states and 2304 transitions. [2024-11-28 04:59:30,785 INFO L78 Accepts]: Start accepts. Automaton has 1624 states and 2304 transitions. Word has length 13 [2024-11-28 04:59:30,786 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:59:30,786 INFO L471 AbstractCegarLoop]: Abstraction has 1624 states and 2304 transitions. [2024-11-28 04:59:30,786 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 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) [2024-11-28 04:59:30,786 INFO L276 IsEmpty]: Start isEmpty. Operand 1624 states and 2304 transitions. [2024-11-28 04:59:30,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-11-28 04:59:30,787 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:59:30,787 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:59:30,799 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e873d2ae-f983-47fb-8d96-6a2fc4d3444a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-28 04:59:30,987 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e873d2ae-f983-47fb-8d96-6a2fc4d3444a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:59:30,988 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr521ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 520 more)] === [2024-11-28 04:59:30,988 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:59:30,989 INFO L85 PathProgramCache]: Analyzing trace with hash -825663860, now seen corresponding path program 1 times [2024-11-28 04:59:30,990 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:59:30,990 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [665085251] [2024-11-28 04:59:30,990 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:59:30,990 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:59:30,990 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e873d2ae-f983-47fb-8d96-6a2fc4d3444a/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:59:30,993 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e873d2ae-f983-47fb-8d96-6a2fc4d3444a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:59:30,994 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e873d2ae-f983-47fb-8d96-6a2fc4d3444a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-28 04:59:31,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:59:31,164 INFO L256 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-28 04:59:31,166 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:59:31,183 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-28 04:59:31,185 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-28 04:59:31,192 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 33 treesize of output 31 [2024-11-28 04:59:31,259 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:59:31,260 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 62 treesize of output 22 [2024-11-28 04:59:31,291 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:59:31,291 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:59:31,291 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:59:31,291 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [665085251] [2024-11-28 04:59:31,291 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [665085251] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:59:31,291 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:59:31,292 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 04:59:31,292 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [227056616] [2024-11-28 04:59:31,292 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:59:31,292 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 04:59:31,292 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:59:31,293 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 04:59:31,293 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 04:59:31,293 INFO L87 Difference]: Start difference. First operand 1624 states and 2304 transitions. Second operand has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:59:32,188 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:59:32,188 INFO L93 Difference]: Finished difference Result 2161 states and 2576 transitions. [2024-11-28 04:59:32,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 04:59:32,189 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2024-11-28 04:59:32,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:59:32,195 INFO L225 Difference]: With dead ends: 2161 [2024-11-28 04:59:32,195 INFO L226 Difference]: Without dead ends: 2161 [2024-11-28 04:59:32,195 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-28 04:59:32,196 INFO L435 NwaCegarLoop]: 978 mSDtfsCounter, 945 mSDsluCounter, 1942 mSDsCounter, 0 mSdLazyCounter, 147 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 948 SdHoareTripleChecker+Valid, 2920 SdHoareTripleChecker+Invalid, 148 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 147 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-28 04:59:32,196 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [948 Valid, 2920 Invalid, 148 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 147 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-28 04:59:32,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2161 states. [2024-11-28 04:59:32,221 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2161 to 1259. [2024-11-28 04:59:32,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1259 states, 808 states have (on average 1.931930693069307) internal successors, (1561), 1253 states have internal predecessors, (1561), 5 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-28 04:59:32,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1259 states to 1259 states and 1569 transitions. [2024-11-28 04:59:32,227 INFO L78 Accepts]: Start accepts. Automaton has 1259 states and 1569 transitions. Word has length 12 [2024-11-28 04:59:32,227 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:59:32,228 INFO L471 AbstractCegarLoop]: Abstraction has 1259 states and 1569 transitions. [2024-11-28 04:59:32,228 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:59:32,228 INFO L276 IsEmpty]: Start isEmpty. Operand 1259 states and 1569 transitions. [2024-11-28 04:59:32,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2024-11-28 04:59:32,228 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:59:32,228 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:59:32,239 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e873d2ae-f983-47fb-8d96-6a2fc4d3444a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-28 04:59:32,429 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e873d2ae-f983-47fb-8d96-6a2fc4d3444a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:59:32,429 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr14REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 520 more)] === [2024-11-28 04:59:32,430 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:59:32,430 INFO L85 PathProgramCache]: Analyzing trace with hash 495195041, now seen corresponding path program 1 times [2024-11-28 04:59:32,430 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:59:32,431 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [892930219] [2024-11-28 04:59:32,431 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:59:32,431 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:59:32,431 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e873d2ae-f983-47fb-8d96-6a2fc4d3444a/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:59:32,433 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e873d2ae-f983-47fb-8d96-6a2fc4d3444a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:59:32,438 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e873d2ae-f983-47fb-8d96-6a2fc4d3444a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-28 04:59:32,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:59:32,626 INFO L256 TraceCheckSpWp]: Trace formula consists of 130 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-28 04:59:32,628 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:59:32,636 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2024-11-28 04:59:32,722 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:59:32,722 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:59:32,722 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:59:32,722 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [892930219] [2024-11-28 04:59:32,722 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [892930219] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:59:32,723 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:59:32,723 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:59:32,723 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2014957242] [2024-11-28 04:59:32,723 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:59:32,724 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 04:59:32,724 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:59:32,724 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 04:59:32,724 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 04:59:32,725 INFO L87 Difference]: Start difference. First operand 1259 states and 1569 transitions. Second operand has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 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) [2024-11-28 04:59:36,130 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:59:36,131 INFO L93 Difference]: Finished difference Result 1702 states and 2114 transitions. [2024-11-28 04:59:36,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 04:59:36,132 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 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 19 [2024-11-28 04:59:36,132 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:59:36,135 INFO L225 Difference]: With dead ends: 1702 [2024-11-28 04:59:36,135 INFO L226 Difference]: Without dead ends: 1702 [2024-11-28 04:59:36,135 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-28 04:59:36,136 INFO L435 NwaCegarLoop]: 526 mSDtfsCounter, 982 mSDsluCounter, 696 mSDsCounter, 0 mSdLazyCounter, 1213 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 985 SdHoareTripleChecker+Valid, 1222 SdHoareTripleChecker+Invalid, 1240 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 1213 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2024-11-28 04:59:36,136 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [985 Valid, 1222 Invalid, 1240 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 1213 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2024-11-28 04:59:36,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1702 states. [2024-11-28 04:59:36,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1702 to 1236. [2024-11-28 04:59:36,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1236 states, 808 states have (on average 1.875) internal successors, (1515), 1230 states have internal predecessors, (1515), 5 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-28 04:59:36,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1236 states to 1236 states and 1523 transitions. [2024-11-28 04:59:36,170 INFO L78 Accepts]: Start accepts. Automaton has 1236 states and 1523 transitions. Word has length 19 [2024-11-28 04:59:36,170 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:59:36,171 INFO L471 AbstractCegarLoop]: Abstraction has 1236 states and 1523 transitions. [2024-11-28 04:59:36,171 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 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) [2024-11-28 04:59:36,171 INFO L276 IsEmpty]: Start isEmpty. Operand 1236 states and 1523 transitions. [2024-11-28 04:59:36,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2024-11-28 04:59:36,172 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:59:36,172 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:59:36,188 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e873d2ae-f983-47fb-8d96-6a2fc4d3444a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2024-11-28 04:59:36,373 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e873d2ae-f983-47fb-8d96-6a2fc4d3444a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:59:36,373 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr15REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 520 more)] === [2024-11-28 04:59:36,374 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:59:36,374 INFO L85 PathProgramCache]: Analyzing trace with hash 495195042, now seen corresponding path program 1 times [2024-11-28 04:59:36,374 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:59:36,374 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1710496671] [2024-11-28 04:59:36,374 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:59:36,374 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:59:36,374 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e873d2ae-f983-47fb-8d96-6a2fc4d3444a/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:59:36,376 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e873d2ae-f983-47fb-8d96-6a2fc4d3444a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:59:36,378 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e873d2ae-f983-47fb-8d96-6a2fc4d3444a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-28 04:59:36,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:59:36,592 INFO L256 TraceCheckSpWp]: Trace formula consists of 130 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-28 04:59:36,595 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:59:36,612 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-11-28 04:59:36,777 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:59:36,777 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:59:36,777 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:59:36,777 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1710496671] [2024-11-28 04:59:36,777 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1710496671] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:59:36,778 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:59:36,778 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:59:36,778 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1780474082] [2024-11-28 04:59:36,778 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:59:36,778 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 04:59:36,778 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:59:36,779 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 04:59:36,779 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 04:59:36,780 INFO L87 Difference]: Start difference. First operand 1236 states and 1523 transitions. Second operand has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 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) [2024-11-28 04:59:41,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:59:41,933 INFO L93 Difference]: Finished difference Result 1980 states and 2446 transitions. [2024-11-28 04:59:41,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 04:59:41,934 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 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 19 [2024-11-28 04:59:41,934 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:59:41,937 INFO L225 Difference]: With dead ends: 1980 [2024-11-28 04:59:41,937 INFO L226 Difference]: Without dead ends: 1980 [2024-11-28 04:59:41,938 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-28 04:59:41,938 INFO L435 NwaCegarLoop]: 1206 mSDtfsCounter, 825 mSDsluCounter, 1211 mSDsCounter, 0 mSdLazyCounter, 1469 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 825 SdHoareTripleChecker+Valid, 2417 SdHoareTripleChecker+Invalid, 1491 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 1469 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2024-11-28 04:59:41,938 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [825 Valid, 2417 Invalid, 1491 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 1469 Invalid, 0 Unknown, 0 Unchecked, 5.1s Time] [2024-11-28 04:59:41,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1980 states. [2024-11-28 04:59:41,962 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1980 to 1352. [2024-11-28 04:59:41,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1352 states, 924 states have (on average 1.7911255411255411) internal successors, (1655), 1346 states have internal predecessors, (1655), 5 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-28 04:59:41,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1352 states to 1352 states and 1663 transitions. [2024-11-28 04:59:41,968 INFO L78 Accepts]: Start accepts. Automaton has 1352 states and 1663 transitions. Word has length 19 [2024-11-28 04:59:41,968 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:59:41,968 INFO L471 AbstractCegarLoop]: Abstraction has 1352 states and 1663 transitions. [2024-11-28 04:59:41,969 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 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) [2024-11-28 04:59:41,969 INFO L276 IsEmpty]: Start isEmpty. Operand 1352 states and 1663 transitions. [2024-11-28 04:59:41,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2024-11-28 04:59:41,970 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:59:41,970 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-11-28 04:59:41,983 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e873d2ae-f983-47fb-8d96-6a2fc4d3444a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-11-28 04:59:42,170 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e873d2ae-f983-47fb-8d96-6a2fc4d3444a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:59:42,171 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr15REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 520 more)] === [2024-11-28 04:59:42,175 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:59:42,175 INFO L85 PathProgramCache]: Analyzing trace with hash 1991006148, now seen corresponding path program 1 times [2024-11-28 04:59:42,176 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:59:42,176 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1075781072] [2024-11-28 04:59:42,176 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:59:42,176 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:59:42,176 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e873d2ae-f983-47fb-8d96-6a2fc4d3444a/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:59:42,184 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e873d2ae-f983-47fb-8d96-6a2fc4d3444a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:59:42,186 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e873d2ae-f983-47fb-8d96-6a2fc4d3444a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-28 04:59:42,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:59:42,475 INFO L256 TraceCheckSpWp]: Trace formula consists of 201 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-28 04:59:42,478 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:59:42,488 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-11-28 04:59:42,853 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:59:42,853 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:59:43,605 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:59:43,605 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:59:43,605 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1075781072] [2024-11-28 04:59:43,605 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1075781072] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:59:43,606 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-28 04:59:43,606 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2024-11-28 04:59:43,606 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1084759835] [2024-11-28 04:59:43,606 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-28 04:59:43,606 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-28 04:59:43,607 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:59:43,607 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-28 04:59:43,607 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-11-28 04:59:43,608 INFO L87 Difference]: Start difference. First operand 1352 states and 1663 transitions. Second operand has 8 states, 7 states have (on average 10.142857142857142) internal successors, (71), 8 states have internal predecessors, (71), 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) [2024-11-28 04:59:56,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:59:56,000 INFO L93 Difference]: Finished difference Result 2342 states and 2942 transitions. [2024-11-28 04:59:56,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-28 04:59:56,001 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 10.142857142857142) internal successors, (71), 8 states have internal predecessors, (71), 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 38 [2024-11-28 04:59:56,001 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:59:56,005 INFO L225 Difference]: With dead ends: 2342 [2024-11-28 04:59:56,005 INFO L226 Difference]: Without dead ends: 2342 [2024-11-28 04:59:56,005 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 68 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=48, Invalid=84, Unknown=0, NotChecked=0, Total=132 [2024-11-28 04:59:56,006 INFO L435 NwaCegarLoop]: 1234 mSDtfsCounter, 1597 mSDsluCounter, 2506 mSDsCounter, 0 mSdLazyCounter, 2699 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1598 SdHoareTripleChecker+Valid, 3740 SdHoareTripleChecker+Invalid, 2726 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 2699 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.1s IncrementalHoareTripleChecker+Time [2024-11-28 04:59:56,006 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1598 Valid, 3740 Invalid, 2726 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 2699 Invalid, 0 Unknown, 0 Unchecked, 12.1s Time] [2024-11-28 04:59:56,008 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2342 states. [2024-11-28 04:59:56,028 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2342 to 1518. [2024-11-28 04:59:56,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1518 states, 1090 states have (on average 1.7330275229357799) internal successors, (1889), 1512 states have internal predecessors, (1889), 5 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-28 04:59:56,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1518 states to 1518 states and 1897 transitions. [2024-11-28 04:59:56,036 INFO L78 Accepts]: Start accepts. Automaton has 1518 states and 1897 transitions. Word has length 38 [2024-11-28 04:59:56,037 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:59:56,037 INFO L471 AbstractCegarLoop]: Abstraction has 1518 states and 1897 transitions. [2024-11-28 04:59:56,037 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 10.142857142857142) internal successors, (71), 8 states have internal predecessors, (71), 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) [2024-11-28 04:59:56,037 INFO L276 IsEmpty]: Start isEmpty. Operand 1518 states and 1897 transitions. [2024-11-28 04:59:56,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2024-11-28 04:59:56,038 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:59:56,039 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:59:56,052 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e873d2ae-f983-47fb-8d96-6a2fc4d3444a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2024-11-28 04:59:56,239 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e873d2ae-f983-47fb-8d96-6a2fc4d3444a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:59:56,239 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr71REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 520 more)] === [2024-11-28 04:59:56,240 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:59:56,240 INFO L85 PathProgramCache]: Analyzing trace with hash -1728836185, now seen corresponding path program 1 times [2024-11-28 04:59:56,240 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:59:56,240 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [218937374] [2024-11-28 04:59:56,240 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:59:56,240 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:59:56,241 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e873d2ae-f983-47fb-8d96-6a2fc4d3444a/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:59:56,244 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e873d2ae-f983-47fb-8d96-6a2fc4d3444a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:59:56,245 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e873d2ae-f983-47fb-8d96-6a2fc4d3444a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-28 04:59:56,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:59:56,480 INFO L256 TraceCheckSpWp]: Trace formula consists of 254 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-28 04:59:56,482 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:59:56,552 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:59:56,552 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:59:56,553 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:59:56,553 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [218937374] [2024-11-28 04:59:56,553 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [218937374] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:59:56,553 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:59:56,553 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 04:59:56,553 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1910702134] [2024-11-28 04:59:56,554 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:59:56,554 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 04:59:56,554 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:59:56,555 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 04:59:56,555 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 04:59:56,555 INFO L87 Difference]: Start difference. First operand 1518 states and 1897 transitions. Second operand has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:59:56,660 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:59:56,660 INFO L93 Difference]: Finished difference Result 1203 states and 1457 transitions. [2024-11-28 04:59:56,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 04:59:56,661 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 54 [2024-11-28 04:59:56,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:59:56,663 INFO L225 Difference]: With dead ends: 1203 [2024-11-28 04:59:56,663 INFO L226 Difference]: Without dead ends: 1203 [2024-11-28 04:59:56,663 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-28 04:59:56,664 INFO L435 NwaCegarLoop]: 938 mSDtfsCounter, 56 mSDsluCounter, 1803 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 2741 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 04:59:56,664 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 2741 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 04:59:56,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1203 states. [2024-11-28 04:59:56,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1203 to 1201. [2024-11-28 04:59:56,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1201 states, 796 states have (on average 1.8178391959798994) internal successors, (1447), 1195 states have internal predecessors, (1447), 5 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-28 04:59:56,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1201 states to 1201 states and 1455 transitions. [2024-11-28 04:59:56,683 INFO L78 Accepts]: Start accepts. Automaton has 1201 states and 1455 transitions. Word has length 54 [2024-11-28 04:59:56,683 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:59:56,683 INFO L471 AbstractCegarLoop]: Abstraction has 1201 states and 1455 transitions. [2024-11-28 04:59:56,684 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:59:56,684 INFO L276 IsEmpty]: Start isEmpty. Operand 1201 states and 1455 transitions. [2024-11-28 04:59:56,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2024-11-28 04:59:56,685 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:59:56,685 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:59:56,698 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e873d2ae-f983-47fb-8d96-6a2fc4d3444a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2024-11-28 04:59:56,885 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e873d2ae-f983-47fb-8d96-6a2fc4d3444a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:59:56,886 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr71REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 520 more)] === [2024-11-28 04:59:56,886 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:59:56,886 INFO L85 PathProgramCache]: Analyzing trace with hash 199933403, now seen corresponding path program 1 times [2024-11-28 04:59:56,887 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:59:56,887 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [876444929] [2024-11-28 04:59:56,887 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:59:56,887 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:59:56,887 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e873d2ae-f983-47fb-8d96-6a2fc4d3444a/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:59:56,889 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e873d2ae-f983-47fb-8d96-6a2fc4d3444a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:59:56,891 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e873d2ae-f983-47fb-8d96-6a2fc4d3444a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-11-28 04:59:57,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:59:57,177 INFO L256 TraceCheckSpWp]: Trace formula consists of 278 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-28 04:59:57,180 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:59:57,195 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-11-28 04:59:58,004 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 04:59:58,005 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 9 [2024-11-28 04:59:58,026 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2024-11-28 04:59:58,026 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13 [2024-11-28 04:59:58,031 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:59:58,031 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:59:58,031 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:59:58,031 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [876444929] [2024-11-28 04:59:58,031 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [876444929] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:59:58,031 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:59:58,031 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 04:59:58,032 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1981795415] [2024-11-28 04:59:58,032 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:59:58,032 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 04:59:58,032 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:59:58,033 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 04:59:58,033 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-28 04:59:58,033 INFO L87 Difference]: Start difference. First operand 1201 states and 1455 transitions. Second operand has 5 states, 4 states have (on average 15.5) internal successors, (62), 5 states have internal predecessors, (62), 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) [2024-11-28 05:00:02,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:00:02,210 INFO L93 Difference]: Finished difference Result 1621 states and 2000 transitions. [2024-11-28 05:00:02,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 05:00:02,211 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 15.5) internal successors, (62), 5 states have internal predecessors, (62), 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 62 [2024-11-28 05:00:02,211 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:00:02,216 INFO L225 Difference]: With dead ends: 1621 [2024-11-28 05:00:02,216 INFO L226 Difference]: Without dead ends: 1621 [2024-11-28 05:00:02,216 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2024-11-28 05:00:02,217 INFO L435 NwaCegarLoop]: 329 mSDtfsCounter, 1301 mSDsluCounter, 426 mSDsCounter, 0 mSdLazyCounter, 1497 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1304 SdHoareTripleChecker+Valid, 755 SdHoareTripleChecker+Invalid, 1539 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 1497 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2024-11-28 05:00:02,217 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1304 Valid, 755 Invalid, 1539 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 1497 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2024-11-28 05:00:02,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1621 states. [2024-11-28 05:00:02,231 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1621 to 1126. [2024-11-28 05:00:02,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1126 states, 759 states have (on average 1.7588932806324111) internal successors, (1335), 1120 states have internal predecessors, (1335), 5 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-28 05:00:02,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1126 states to 1126 states and 1343 transitions. [2024-11-28 05:00:02,235 INFO L78 Accepts]: Start accepts. Automaton has 1126 states and 1343 transitions. Word has length 62 [2024-11-28 05:00:02,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:00:02,236 INFO L471 AbstractCegarLoop]: Abstraction has 1126 states and 1343 transitions. [2024-11-28 05:00:02,236 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 15.5) internal successors, (62), 5 states have internal predecessors, (62), 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) [2024-11-28 05:00:02,236 INFO L276 IsEmpty]: Start isEmpty. Operand 1126 states and 1343 transitions. [2024-11-28 05:00:02,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-11-28 05:00:02,237 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:00:02,237 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:00:02,253 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e873d2ae-f983-47fb-8d96-6a2fc4d3444a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2024-11-28 05:00:02,438 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e873d2ae-f983-47fb-8d96-6a2fc4d3444a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:00:02,438 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr76REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 520 more)] === [2024-11-28 05:00:02,438 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:00:02,438 INFO L85 PathProgramCache]: Analyzing trace with hash -543313183, now seen corresponding path program 1 times [2024-11-28 05:00:02,439 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 05:00:02,439 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [969775183] [2024-11-28 05:00:02,439 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:00:02,439 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:00:02,439 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e873d2ae-f983-47fb-8d96-6a2fc4d3444a/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:00:02,441 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e873d2ae-f983-47fb-8d96-6a2fc4d3444a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 05:00:02,442 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e873d2ae-f983-47fb-8d96-6a2fc4d3444a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-11-28 05:00:02,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:00:02,691 INFO L256 TraceCheckSpWp]: Trace formula consists of 305 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-28 05:00:02,696 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:00:02,711 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2024-11-28 05:00:02,727 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-28 05:00:02,758 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2024-11-28 05:00:02,768 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 05:00:02,768 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 05:00:02,768 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 05:00:02,768 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [969775183] [2024-11-28 05:00:02,768 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [969775183] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:00:02,769 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:00:02,769 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 05:00:02,769 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1554957041] [2024-11-28 05:00:02,769 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:00:02,769 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 05:00:02,769 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 05:00:02,770 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 05:00:02,770 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 05:00:02,770 INFO L87 Difference]: Start difference. First operand 1126 states and 1343 transitions. Second operand has 5 states, 4 states have (on average 16.75) internal successors, (67), 5 states have internal predecessors, (67), 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) [2024-11-28 05:00:05,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:00:05,586 INFO L93 Difference]: Finished difference Result 1125 states and 1342 transitions. [2024-11-28 05:00:05,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 05:00:05,586 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 16.75) internal successors, (67), 5 states have internal predecessors, (67), 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 67 [2024-11-28 05:00:05,587 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:00:05,590 INFO L225 Difference]: With dead ends: 1125 [2024-11-28 05:00:05,590 INFO L226 Difference]: Without dead ends: 1125 [2024-11-28 05:00:05,591 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-28 05:00:05,591 INFO L435 NwaCegarLoop]: 911 mSDtfsCounter, 2 mSDsluCounter, 1456 mSDsCounter, 0 mSdLazyCounter, 1284 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 2367 SdHoareTripleChecker+Invalid, 1285 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1284 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2024-11-28 05:00:05,591 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 2367 Invalid, 1285 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1284 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2024-11-28 05:00:05,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1125 states. [2024-11-28 05:00:05,599 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1125 to 1125. [2024-11-28 05:00:05,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1125 states, 759 states have (on average 1.7575757575757576) internal successors, (1334), 1119 states have internal predecessors, (1334), 5 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-28 05:00:05,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1125 states to 1125 states and 1342 transitions. [2024-11-28 05:00:05,603 INFO L78 Accepts]: Start accepts. Automaton has 1125 states and 1342 transitions. Word has length 67 [2024-11-28 05:00:05,603 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:00:05,603 INFO L471 AbstractCegarLoop]: Abstraction has 1125 states and 1342 transitions. [2024-11-28 05:00:05,603 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 16.75) internal successors, (67), 5 states have internal predecessors, (67), 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) [2024-11-28 05:00:05,604 INFO L276 IsEmpty]: Start isEmpty. Operand 1125 states and 1342 transitions. [2024-11-28 05:00:05,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-11-28 05:00:05,604 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:00:05,604 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:00:05,618 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e873d2ae-f983-47fb-8d96-6a2fc4d3444a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2024-11-28 05:00:05,805 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e873d2ae-f983-47fb-8d96-6a2fc4d3444a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:00:05,805 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr77REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 520 more)] === [2024-11-28 05:00:05,805 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:00:05,806 INFO L85 PathProgramCache]: Analyzing trace with hash -543313182, now seen corresponding path program 1 times [2024-11-28 05:00:05,806 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 05:00:05,806 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1163280758] [2024-11-28 05:00:05,806 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:00:05,806 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:00:05,806 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e873d2ae-f983-47fb-8d96-6a2fc4d3444a/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:00:05,808 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e873d2ae-f983-47fb-8d96-6a2fc4d3444a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 05:00:05,811 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e873d2ae-f983-47fb-8d96-6a2fc4d3444a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-11-28 05:00:06,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:00:06,113 INFO L256 TraceCheckSpWp]: Trace formula consists of 305 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-28 05:00:06,116 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:00:06,128 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-11-28 05:00:06,154 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-28 05:00:06,160 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2024-11-28 05:00:06,225 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2024-11-28 05:00:06,252 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 05:00:06,252 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 05:00:06,252 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 05:00:06,252 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1163280758] [2024-11-28 05:00:06,252 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1163280758] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:00:06,252 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:00:06,252 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 05:00:06,252 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1291545324] [2024-11-28 05:00:06,252 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:00:06,253 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 05:00:06,253 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 05:00:06,253 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 05:00:06,253 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 05:00:06,253 INFO L87 Difference]: Start difference. First operand 1125 states and 1342 transitions. Second operand has 5 states, 4 states have (on average 16.75) internal successors, (67), 5 states have internal predecessors, (67), 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) [2024-11-28 05:00:09,732 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:00:09,732 INFO L93 Difference]: Finished difference Result 1124 states and 1341 transitions. [2024-11-28 05:00:09,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 05:00:09,733 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 16.75) internal successors, (67), 5 states have internal predecessors, (67), 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 67 [2024-11-28 05:00:09,733 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:00:09,736 INFO L225 Difference]: With dead ends: 1124 [2024-11-28 05:00:09,736 INFO L226 Difference]: Without dead ends: 1124 [2024-11-28 05:00:09,736 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-28 05:00:09,737 INFO L435 NwaCegarLoop]: 911 mSDtfsCounter, 1 mSDsluCounter, 1461 mSDsCounter, 0 mSdLazyCounter, 1276 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 2372 SdHoareTripleChecker+Invalid, 1277 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1276 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2024-11-28 05:00:09,737 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 2372 Invalid, 1277 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1276 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2024-11-28 05:00:09,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1124 states. [2024-11-28 05:00:09,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1124 to 1124. [2024-11-28 05:00:09,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1124 states, 758 states have (on average 1.7585751978891822) internal successors, (1333), 1118 states have internal predecessors, (1333), 5 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-28 05:00:09,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1124 states to 1124 states and 1341 transitions. [2024-11-28 05:00:09,748 INFO L78 Accepts]: Start accepts. Automaton has 1124 states and 1341 transitions. Word has length 67 [2024-11-28 05:00:09,748 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:00:09,748 INFO L471 AbstractCegarLoop]: Abstraction has 1124 states and 1341 transitions. [2024-11-28 05:00:09,748 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 16.75) internal successors, (67), 5 states have internal predecessors, (67), 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) [2024-11-28 05:00:09,749 INFO L276 IsEmpty]: Start isEmpty. Operand 1124 states and 1341 transitions. [2024-11-28 05:00:09,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2024-11-28 05:00:09,749 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:00:09,749 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:00:09,764 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e873d2ae-f983-47fb-8d96-6a2fc4d3444a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2024-11-28 05:00:09,950 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e873d2ae-f983-47fb-8d96-6a2fc4d3444a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:00:09,950 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr80REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 520 more)] === [2024-11-28 05:00:09,950 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:00:09,950 INFO L85 PathProgramCache]: Analyzing trace with hash 161452936, now seen corresponding path program 1 times [2024-11-28 05:00:09,951 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 05:00:09,951 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [269325949] [2024-11-28 05:00:09,951 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:00:09,951 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:00:09,951 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e873d2ae-f983-47fb-8d96-6a2fc4d3444a/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:00:09,953 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e873d2ae-f983-47fb-8d96-6a2fc4d3444a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 05:00:09,954 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e873d2ae-f983-47fb-8d96-6a2fc4d3444a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2024-11-28 05:00:10,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:00:10,207 INFO L256 TraceCheckSpWp]: Trace formula consists of 331 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-28 05:00:10,209 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:00:10,218 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-28 05:00:10,292 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2024-11-28 05:00:10,305 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 05:00:10,305 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 05:00:10,305 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 05:00:10,305 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [269325949] [2024-11-28 05:00:10,305 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [269325949] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:00:10,305 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:00:10,305 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 05:00:10,305 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [837513670] [2024-11-28 05:00:10,305 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:00:10,306 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-28 05:00:10,306 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 05:00:10,306 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-28 05:00:10,306 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-28 05:00:10,307 INFO L87 Difference]: Start difference. First operand 1124 states and 1341 transitions. Second operand has 7 states, 5 states have (on average 14.6) internal successors, (73), 6 states have internal predecessors, (73), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-28 05:00:14,187 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:00:14,187 INFO L93 Difference]: Finished difference Result 1136 states and 1356 transitions. [2024-11-28 05:00:14,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-28 05:00:14,187 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 5 states have (on average 14.6) internal successors, (73), 6 states have internal predecessors, (73), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 75 [2024-11-28 05:00:14,188 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:00:14,192 INFO L225 Difference]: With dead ends: 1136 [2024-11-28 05:00:14,192 INFO L226 Difference]: Without dead ends: 1136 [2024-11-28 05:00:14,193 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 69 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2024-11-28 05:00:14,193 INFO L435 NwaCegarLoop]: 901 mSDtfsCounter, 8 mSDsluCounter, 2933 mSDsCounter, 0 mSdLazyCounter, 1638 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 3834 SdHoareTripleChecker+Invalid, 1644 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 1638 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2024-11-28 05:00:14,193 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 3834 Invalid, 1644 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 1638 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2024-11-28 05:00:14,195 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1136 states. [2024-11-28 05:00:14,206 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1136 to 1130. [2024-11-28 05:00:14,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1130 states, 763 states have (on average 1.7562254259501966) internal successors, (1340), 1123 states have internal predecessors, (1340), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (6), 4 states have call predecessors, (6), 3 states have call successors, (6) [2024-11-28 05:00:14,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1130 states to 1130 states and 1351 transitions. [2024-11-28 05:00:14,208 INFO L78 Accepts]: Start accepts. Automaton has 1130 states and 1351 transitions. Word has length 75 [2024-11-28 05:00:14,208 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:00:14,208 INFO L471 AbstractCegarLoop]: Abstraction has 1130 states and 1351 transitions. [2024-11-28 05:00:14,208 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 5 states have (on average 14.6) internal successors, (73), 6 states have internal predecessors, (73), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-28 05:00:14,209 INFO L276 IsEmpty]: Start isEmpty. Operand 1130 states and 1351 transitions. [2024-11-28 05:00:14,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2024-11-28 05:00:14,209 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:00:14,209 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:00:14,222 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e873d2ae-f983-47fb-8d96-6a2fc4d3444a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2024-11-28 05:00:14,409 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e873d2ae-f983-47fb-8d96-6a2fc4d3444a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:00:14,410 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr81REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 520 more)] === [2024-11-28 05:00:14,410 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:00:14,410 INFO L85 PathProgramCache]: Analyzing trace with hash 161452937, now seen corresponding path program 1 times [2024-11-28 05:00:14,410 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 05:00:14,410 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1626992668] [2024-11-28 05:00:14,411 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:00:14,411 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:00:14,411 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e873d2ae-f983-47fb-8d96-6a2fc4d3444a/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:00:14,412 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e873d2ae-f983-47fb-8d96-6a2fc4d3444a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 05:00:14,413 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e873d2ae-f983-47fb-8d96-6a2fc4d3444a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2024-11-28 05:00:14,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:00:14,743 INFO L256 TraceCheckSpWp]: Trace formula consists of 331 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-28 05:00:14,746 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:00:14,770 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 05:00:14,771 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 05:00:14,771 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 05:00:14,771 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1626992668] [2024-11-28 05:00:14,771 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1626992668] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:00:14,771 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:00:14,771 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 05:00:14,771 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [830576266] [2024-11-28 05:00:14,772 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:00:14,772 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 05:00:14,772 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 05:00:14,773 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 05:00:14,773 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 05:00:14,773 INFO L87 Difference]: Start difference. First operand 1130 states and 1351 transitions. Second operand has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-28 05:00:14,822 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:00:14,823 INFO L93 Difference]: Finished difference Result 1127 states and 1345 transitions. [2024-11-28 05:00:14,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 05:00:14,824 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 75 [2024-11-28 05:00:14,824 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:00:14,827 INFO L225 Difference]: With dead ends: 1127 [2024-11-28 05:00:14,828 INFO L226 Difference]: Without dead ends: 1127 [2024-11-28 05:00:14,828 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 72 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 05:00:14,828 INFO L435 NwaCegarLoop]: 911 mSDtfsCounter, 0 mSDsluCounter, 1817 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2728 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 05:00:14,829 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 2728 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 05:00:14,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1127 states. [2024-11-28 05:00:14,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1127 to 1127. [2024-11-28 05:00:14,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1127 states, 760 states have (on average 1.7578947368421052) internal successors, (1336), 1121 states have internal predecessors, (1336), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-28 05:00:14,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1127 states to 1127 states and 1345 transitions. [2024-11-28 05:00:14,847 INFO L78 Accepts]: Start accepts. Automaton has 1127 states and 1345 transitions. Word has length 75 [2024-11-28 05:00:14,847 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:00:14,847 INFO L471 AbstractCegarLoop]: Abstraction has 1127 states and 1345 transitions. [2024-11-28 05:00:14,848 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-28 05:00:14,848 INFO L276 IsEmpty]: Start isEmpty. Operand 1127 states and 1345 transitions. [2024-11-28 05:00:14,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2024-11-28 05:00:14,848 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:00:14,848 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:00:14,862 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e873d2ae-f983-47fb-8d96-6a2fc4d3444a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2024-11-28 05:00:15,049 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e873d2ae-f983-47fb-8d96-6a2fc4d3444a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:00:15,049 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr80REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 520 more)] === [2024-11-28 05:00:15,049 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:00:15,050 INFO L85 PathProgramCache]: Analyzing trace with hash 1682867130, now seen corresponding path program 1 times [2024-11-28 05:00:15,050 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 05:00:15,050 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1242527742] [2024-11-28 05:00:15,050 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:00:15,050 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:00:15,050 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e873d2ae-f983-47fb-8d96-6a2fc4d3444a/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:00:15,052 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e873d2ae-f983-47fb-8d96-6a2fc4d3444a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 05:00:15,053 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e873d2ae-f983-47fb-8d96-6a2fc4d3444a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2024-11-28 05:00:15,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:00:15,334 INFO L256 TraceCheckSpWp]: Trace formula consists of 342 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-28 05:00:15,336 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:00:15,371 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 05:00:15,372 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 05:00:15,472 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 05:00:15,472 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 05:00:15,473 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1242527742] [2024-11-28 05:00:15,473 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1242527742] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 05:00:15,473 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-28 05:00:15,473 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2024-11-28 05:00:15,473 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [353249519] [2024-11-28 05:00:15,473 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-28 05:00:15,473 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-28 05:00:15,473 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 05:00:15,474 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-28 05:00:15,474 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-11-28 05:00:15,474 INFO L87 Difference]: Start difference. First operand 1127 states and 1345 transitions. Second operand has 8 states, 8 states have (on average 9.75) internal successors, (78), 8 states have internal predecessors, (78), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-28 05:00:15,731 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:00:15,731 INFO L93 Difference]: Finished difference Result 1139 states and 1362 transitions. [2024-11-28 05:00:15,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-28 05:00:15,732 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.75) internal successors, (78), 8 states have internal predecessors, (78), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 76 [2024-11-28 05:00:15,733 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:00:15,737 INFO L225 Difference]: With dead ends: 1139 [2024-11-28 05:00:15,737 INFO L226 Difference]: Without dead ends: 1139 [2024-11-28 05:00:15,737 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 153 GetRequests, 144 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=44, Invalid=66, Unknown=0, NotChecked=0, Total=110 [2024-11-28 05:00:15,738 INFO L435 NwaCegarLoop]: 911 mSDtfsCounter, 5 mSDsluCounter, 4536 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 5447 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 05:00:15,738 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 5447 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 05:00:15,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1139 states. [2024-11-28 05:00:15,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1139 to 1137. [2024-11-28 05:00:15,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1137 states, 769 states have (on average 1.7568270481144344) internal successors, (1351), 1130 states have internal predecessors, (1351), 5 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-28 05:00:15,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1137 states to 1137 states and 1360 transitions. [2024-11-28 05:00:15,765 INFO L78 Accepts]: Start accepts. Automaton has 1137 states and 1360 transitions. Word has length 76 [2024-11-28 05:00:15,765 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:00:15,765 INFO L471 AbstractCegarLoop]: Abstraction has 1137 states and 1360 transitions. [2024-11-28 05:00:15,765 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.75) internal successors, (78), 8 states have internal predecessors, (78), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-28 05:00:15,765 INFO L276 IsEmpty]: Start isEmpty. Operand 1137 states and 1360 transitions. [2024-11-28 05:00:15,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-11-28 05:00:15,766 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:00:15,767 INFO L218 NwaCegarLoop]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:00:15,782 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e873d2ae-f983-47fb-8d96-6a2fc4d3444a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0 [2024-11-28 05:00:15,967 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e873d2ae-f983-47fb-8d96-6a2fc4d3444a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:00:15,967 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr80REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 520 more)] === [2024-11-28 05:00:15,968 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:00:15,968 INFO L85 PathProgramCache]: Analyzing trace with hash -1242361848, now seen corresponding path program 2 times [2024-11-28 05:00:15,968 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 05:00:15,969 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1518939140] [2024-11-28 05:00:15,969 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 05:00:15,969 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:00:15,969 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e873d2ae-f983-47fb-8d96-6a2fc4d3444a/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:00:15,973 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e873d2ae-f983-47fb-8d96-6a2fc4d3444a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 05:00:15,976 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e873d2ae-f983-47fb-8d96-6a2fc4d3444a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2024-11-28 05:00:52,063 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 05:00:52,064 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 05:00:52,082 INFO L256 TraceCheckSpWp]: Trace formula consists of 375 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-28 05:00:52,085 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:00:52,233 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2024-11-28 05:00:52,233 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13 [2024-11-28 05:00:52,260 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-28 05:00:52,476 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-28 05:00:52,476 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 44 treesize of output 43 [2024-11-28 05:00:52,537 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 15 [2024-11-28 05:00:52,569 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-28 05:00:52,569 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 05:00:52,681 INFO L349 Elim1Store]: treesize reduction 7, result has 63.2 percent of original size [2024-11-28 05:00:52,682 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 24 [2024-11-28 05:00:52,693 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1166 (Array (_ BitVec 32) (_ BitVec 32)))) (= |c_ULTIMATE.start_main_#t~mem34#1.base| (select (select (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem34#1.base| v_ArrVal_1166) |c_ULTIMATE.start_main_~user~0#1.base|) (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|)))) is different from false [2024-11-28 05:00:52,695 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 05:00:52,695 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1518939140] [2024-11-28 05:00:52,695 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1518939140] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 05:00:52,695 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [218061873] [2024-11-28 05:00:52,696 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 05:00:52,696 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-28 05:00:52,696 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e873d2ae-f983-47fb-8d96-6a2fc4d3444a/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 [2024-11-28 05:00:52,698 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e873d2ae-f983-47fb-8d96-6a2fc4d3444a/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-28 05:00:52,699 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e873d2ae-f983-47fb-8d96-6a2fc4d3444a/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (20)] Waiting until timeout for monitored process [2024-11-28 05:00:54,433 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 05:00:54,433 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 05:00:54,473 INFO L256 TraceCheckSpWp]: Trace formula consists of 375 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-28 05:00:54,475 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:00:54,668 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 05:00:54,668 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 05:00:55,015 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 05:00:55,015 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [218061873] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 05:00:55,015 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 05:00:55,015 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 8, 8] total 24 [2024-11-28 05:00:55,015 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1703534854] [2024-11-28 05:00:55,015 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 05:00:55,016 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2024-11-28 05:00:55,016 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 05:00:55,017 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2024-11-28 05:00:55,017 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=513, Unknown=1, NotChecked=46, Total=650 [2024-11-28 05:00:55,017 INFO L87 Difference]: Start difference. First operand 1137 states and 1360 transitions. Second operand has 24 states, 23 states have (on average 6.217391304347826) internal successors, (143), 23 states have internal predecessors, (143), 2 states have call successors, (2), 2 states have call predecessors, (2), 3 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-28 05:01:11,689 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:01:11,690 INFO L93 Difference]: Finished difference Result 1611 states and 1966 transitions. [2024-11-28 05:01:11,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2024-11-28 05:01:11,691 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 23 states have (on average 6.217391304347826) internal successors, (143), 23 states have internal predecessors, (143), 2 states have call successors, (2), 2 states have call predecessors, (2), 3 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 79 [2024-11-28 05:01:11,691 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:01:11,697 INFO L225 Difference]: With dead ends: 1611 [2024-11-28 05:01:11,697 INFO L226 Difference]: Without dead ends: 1607 [2024-11-28 05:01:11,698 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 266 GetRequests, 215 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 473 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=413, Invalid=2242, Unknown=1, NotChecked=100, Total=2756 [2024-11-28 05:01:11,699 INFO L435 NwaCegarLoop]: 506 mSDtfsCounter, 888 mSDsluCounter, 8143 mSDsCounter, 0 mSdLazyCounter, 7732 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 892 SdHoareTripleChecker+Valid, 8649 SdHoareTripleChecker+Invalid, 7756 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 7732 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.3s IncrementalHoareTripleChecker+Time [2024-11-28 05:01:11,699 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [892 Valid, 8649 Invalid, 7756 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [24 Valid, 7732 Invalid, 0 Unknown, 0 Unchecked, 15.3s Time] [2024-11-28 05:01:11,702 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1607 states. [2024-11-28 05:01:11,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1607 to 1145. [2024-11-28 05:01:11,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1145 states, 778 states have (on average 1.750642673521851) internal successors, (1362), 1138 states have internal predecessors, (1362), 5 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-28 05:01:11,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1145 states to 1145 states and 1371 transitions. [2024-11-28 05:01:11,728 INFO L78 Accepts]: Start accepts. Automaton has 1145 states and 1371 transitions. Word has length 79 [2024-11-28 05:01:11,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:01:11,728 INFO L471 AbstractCegarLoop]: Abstraction has 1145 states and 1371 transitions. [2024-11-28 05:01:11,728 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 23 states have (on average 6.217391304347826) internal successors, (143), 23 states have internal predecessors, (143), 2 states have call successors, (2), 2 states have call predecessors, (2), 3 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-28 05:01:11,729 INFO L276 IsEmpty]: Start isEmpty. Operand 1145 states and 1371 transitions. [2024-11-28 05:01:11,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2024-11-28 05:01:11,729 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:01:11,729 INFO L218 NwaCegarLoop]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:01:11,740 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e873d2ae-f983-47fb-8d96-6a2fc4d3444a/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (20)] Forceful destruction successful, exit code 0 [2024-11-28 05:01:11,955 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e873d2ae-f983-47fb-8d96-6a2fc4d3444a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Ended with exit code 0 [2024-11-28 05:01:12,130 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e873d2ae-f983-47fb-8d96-6a2fc4d3444a/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt,19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e873d2ae-f983-47fb-8d96-6a2fc4d3444a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:01:12,130 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr81REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 520 more)] === [2024-11-28 05:01:12,131 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:01:12,131 INFO L85 PathProgramCache]: Analyzing trace with hash 516428489, now seen corresponding path program 1 times [2024-11-28 05:01:12,131 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 05:01:12,131 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1305734195] [2024-11-28 05:01:12,131 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:01:12,132 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:01:12,132 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e873d2ae-f983-47fb-8d96-6a2fc4d3444a/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:01:12,133 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e873d2ae-f983-47fb-8d96-6a2fc4d3444a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 05:01:12,135 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e873d2ae-f983-47fb-8d96-6a2fc4d3444a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2024-11-28 05:01:12,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:01:12,503 INFO L256 TraceCheckSpWp]: Trace formula consists of 441 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-28 05:01:12,505 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:01:12,751 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 05:01:12,751 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 05:01:13,541 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 05:01:13,542 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 05:01:13,542 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1305734195] [2024-11-28 05:01:13,542 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1305734195] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 05:01:13,542 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-28 05:01:13,542 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 26 [2024-11-28 05:01:13,542 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [434052237] [2024-11-28 05:01:13,542 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-28 05:01:13,543 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2024-11-28 05:01:13,543 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 05:01:13,543 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2024-11-28 05:01:13,544 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=193, Invalid=457, Unknown=0, NotChecked=0, Total=650 [2024-11-28 05:01:13,544 INFO L87 Difference]: Start difference. First operand 1145 states and 1371 transitions. Second operand has 26 states, 26 states have (on average 3.6923076923076925) internal successors, (96), 26 states have internal predecessors, (96), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-28 05:01:15,993 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:01:15,993 INFO L93 Difference]: Finished difference Result 1169 states and 1410 transitions. [2024-11-28 05:01:15,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2024-11-28 05:01:15,994 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 3.6923076923076925) internal successors, (96), 26 states have internal predecessors, (96), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 85 [2024-11-28 05:01:15,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:01:15,998 INFO L225 Difference]: With dead ends: 1169 [2024-11-28 05:01:15,998 INFO L226 Difference]: Without dead ends: 1163 [2024-11-28 05:01:15,999 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 189 GetRequests, 144 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 100 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=728, Invalid=1434, Unknown=0, NotChecked=0, Total=2162 [2024-11-28 05:01:15,999 INFO L435 NwaCegarLoop]: 911 mSDtfsCounter, 25 mSDsluCounter, 11800 mSDsCounter, 0 mSdLazyCounter, 592 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 12711 SdHoareTripleChecker+Invalid, 617 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 592 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-28 05:01:15,999 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 12711 Invalid, 617 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 592 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-28 05:01:16,001 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1163 states. [2024-11-28 05:01:16,016 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1163 to 1163. [2024-11-28 05:01:16,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1163 states, 796 states have (on average 1.7399497487437185) internal successors, (1385), 1156 states have internal predecessors, (1385), 5 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-28 05:01:16,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1163 states to 1163 states and 1394 transitions. [2024-11-28 05:01:16,020 INFO L78 Accepts]: Start accepts. Automaton has 1163 states and 1394 transitions. Word has length 85 [2024-11-28 05:01:16,020 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:01:16,021 INFO L471 AbstractCegarLoop]: Abstraction has 1163 states and 1394 transitions. [2024-11-28 05:01:16,021 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 3.6923076923076925) internal successors, (96), 26 states have internal predecessors, (96), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-28 05:01:16,021 INFO L276 IsEmpty]: Start isEmpty. Operand 1163 states and 1394 transitions. [2024-11-28 05:01:16,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2024-11-28 05:01:16,022 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:01:16,022 INFO L218 NwaCegarLoop]: trace histogram [22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:01:16,040 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e873d2ae-f983-47fb-8d96-6a2fc4d3444a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Ended with exit code 0 [2024-11-28 05:01:16,222 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e873d2ae-f983-47fb-8d96-6a2fc4d3444a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:01:16,222 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr81REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 520 more)] === [2024-11-28 05:01:16,223 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:01:16,223 INFO L85 PathProgramCache]: Analyzing trace with hash 111601737, now seen corresponding path program 2 times [2024-11-28 05:01:16,223 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 05:01:16,223 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1337984435] [2024-11-28 05:01:16,224 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 05:01:16,224 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:01:16,224 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e873d2ae-f983-47fb-8d96-6a2fc4d3444a/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:01:16,225 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e873d2ae-f983-47fb-8d96-6a2fc4d3444a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 05:01:16,226 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e873d2ae-f983-47fb-8d96-6a2fc4d3444a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2024-11-28 05:01:53,767 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 05:01:53,767 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 05:01:53,790 INFO L256 TraceCheckSpWp]: Trace formula consists of 573 conjuncts, 65 conjuncts are in the unsatisfiable core [2024-11-28 05:01:53,800 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:01:53,964 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-11-28 05:01:53,989 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2024-11-28 05:01:53,990 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13 [2024-11-28 05:01:54,036 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-28 05:01:54,045 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2024-11-28 05:01:54,168 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 10 [2024-11-28 05:01:54,175 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2024-11-28 05:01:54,764 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-28 05:01:54,764 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 62 treesize of output 57 [2024-11-28 05:01:54,785 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 13 [2024-11-28 05:01:54,846 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 13 [2024-11-28 05:01:54,858 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2024-11-28 05:01:54,895 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 231 trivial. 0 not checked. [2024-11-28 05:01:54,895 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 05:01:55,484 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse0 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (and (forall ((v_ArrVal_1793 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_1794 (Array (_ BitVec 32) (_ BitVec 32)))) (bvule (bvadd (_ bv20 32) (select (select (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem34#1.base| v_ArrVal_1794) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0)) (select |c_#length| (select (select (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem34#1.base| v_ArrVal_1793) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0)))) (forall ((v_ArrVal_1794 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse1 (select (select (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem34#1.base| v_ArrVal_1794) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0))) (bvule (bvadd (_ bv16 32) .cse1) (bvadd (_ bv20 32) .cse1)))))) is different from false [2024-11-28 05:01:55,490 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 05:01:55,490 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1337984435] [2024-11-28 05:01:55,490 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1337984435] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 05:01:55,490 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1176658306] [2024-11-28 05:01:55,490 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 05:01:55,490 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-28 05:01:55,490 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e873d2ae-f983-47fb-8d96-6a2fc4d3444a/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 [2024-11-28 05:01:55,492 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e873d2ae-f983-47fb-8d96-6a2fc4d3444a/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-28 05:01:55,494 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e873d2ae-f983-47fb-8d96-6a2fc4d3444a/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (23)] Waiting until timeout for monitored process [2024-11-28 05:01:57,357 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 05:01:57,357 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 05:01:57,370 INFO L256 TraceCheckSpWp]: Trace formula consists of 573 conjuncts, 25 conjuncts are in the unsatisfiable core [2024-11-28 05:01:57,373 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:01:58,502 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 0 proven. 253 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 05:01:58,502 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 05:02:01,169 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 0 proven. 253 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 05:02:01,170 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1176658306] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 05:02:01,170 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 05:02:01,170 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 26, 26] total 58 [2024-11-28 05:02:01,170 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1204981166] [2024-11-28 05:02:01,170 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 05:02:01,171 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 58 states [2024-11-28 05:02:01,171 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 05:02:01,172 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 58 interpolants. [2024-11-28 05:02:01,173 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=699, Invalid=2844, Unknown=1, NotChecked=116, Total=3660 [2024-11-28 05:02:01,173 INFO L87 Difference]: Start difference. First operand 1163 states and 1394 transitions. Second operand has 58 states, 57 states have (on average 3.1403508771929824) internal successors, (179), 58 states have internal predecessors, (179), 2 states have call successors, (2), 2 states have call predecessors, (2), 3 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-28 05:02:49,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:02:49,210 INFO L93 Difference]: Finished difference Result 1664 states and 2050 transitions. [2024-11-28 05:02:49,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 82 states. [2024-11-28 05:02:49,212 INFO L78 Accepts]: Start accepts. Automaton has has 58 states, 57 states have (on average 3.1403508771929824) internal successors, (179), 58 states have internal predecessors, (179), 2 states have call successors, (2), 2 states have call predecessors, (2), 3 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 97 [2024-11-28 05:02:49,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:02:49,220 INFO L225 Difference]: With dead ends: 1664 [2024-11-28 05:02:49,220 INFO L226 Difference]: Without dead ends: 1656 [2024-11-28 05:02:49,225 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 370 GetRequests, 235 SyntacticMatches, 1 SemanticMatches, 134 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 3089 ImplicationChecksByTransitivity, 12.9s TimeCoverageRelationStatistics Valid=3106, Invalid=14987, Unknown=1, NotChecked=266, Total=18360 [2024-11-28 05:02:49,226 INFO L435 NwaCegarLoop]: 508 mSDtfsCounter, 922 mSDsluCounter, 15712 mSDsCounter, 0 mSdLazyCounter, 17908 mSolverCounterSat, 79 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 34.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 925 SdHoareTripleChecker+Valid, 16220 SdHoareTripleChecker+Invalid, 17987 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 79 IncrementalHoareTripleChecker+Valid, 17908 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 38.2s IncrementalHoareTripleChecker+Time [2024-11-28 05:02:49,226 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [925 Valid, 16220 Invalid, 17987 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [79 Valid, 17908 Invalid, 0 Unknown, 0 Unchecked, 38.2s Time] [2024-11-28 05:02:49,228 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1656 states. [2024-11-28 05:02:49,255 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1656 to 1196. [2024-11-28 05:02:49,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1196 states, 830 states have (on average 1.7180722891566265) internal successors, (1426), 1189 states have internal predecessors, (1426), 5 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-28 05:02:49,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1196 states to 1196 states and 1435 transitions. [2024-11-28 05:02:49,258 INFO L78 Accepts]: Start accepts. Automaton has 1196 states and 1435 transitions. Word has length 97 [2024-11-28 05:02:49,259 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:02:49,259 INFO L471 AbstractCegarLoop]: Abstraction has 1196 states and 1435 transitions. [2024-11-28 05:02:49,259 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 58 states, 57 states have (on average 3.1403508771929824) internal successors, (179), 58 states have internal predecessors, (179), 2 states have call successors, (2), 2 states have call predecessors, (2), 3 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-28 05:02:49,259 INFO L276 IsEmpty]: Start isEmpty. Operand 1196 states and 1435 transitions. [2024-11-28 05:02:49,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2024-11-28 05:02:49,260 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:02:49,260 INFO L218 NwaCegarLoop]: trace histogram [44, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:02:49,306 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e873d2ae-f983-47fb-8d96-6a2fc4d3444a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Ended with exit code 0 [2024-11-28 05:02:49,467 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e873d2ae-f983-47fb-8d96-6a2fc4d3444a/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (23)] Ended with exit code 0 [2024-11-28 05:02:49,660 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e873d2ae-f983-47fb-8d96-6a2fc4d3444a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e873d2ae-f983-47fb-8d96-6a2fc4d3444a/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt [2024-11-28 05:02:49,662 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr84REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 520 more)] === [2024-11-28 05:02:49,663 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:02:49,663 INFO L85 PathProgramCache]: Analyzing trace with hash -1269609854, now seen corresponding path program 1 times [2024-11-28 05:02:49,664 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 05:02:49,664 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [469111531] [2024-11-28 05:02:49,664 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:02:49,664 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:02:49,664 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e873d2ae-f983-47fb-8d96-6a2fc4d3444a/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:02:49,667 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e873d2ae-f983-47fb-8d96-6a2fc4d3444a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 05:02:49,671 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e873d2ae-f983-47fb-8d96-6a2fc4d3444a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2024-11-28 05:02:50,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:02:50,223 INFO L256 TraceCheckSpWp]: Trace formula consists of 835 conjuncts, 59 conjuncts are in the unsatisfiable core [2024-11-28 05:02:50,233 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:02:50,388 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2024-11-28 05:02:50,388 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13 [2024-11-28 05:02:50,416 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-28 05:02:51,127 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-28 05:02:51,127 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 44 treesize of output 43 [2024-11-28 05:02:51,308 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-28 05:02:51,309 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 44 treesize of output 43 [2024-11-28 05:02:51,354 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 15 [2024-11-28 05:02:51,396 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 946 trivial. 0 not checked. [2024-11-28 05:02:51,396 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 05:02:51,465 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_2453 (Array (_ BitVec 32) (_ BitVec 32)))) (= (_ bv0 1) (bvadd (_ bv1 1) (select |c_#valid| (select (select (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem36#1.base| v_ArrVal_2453) |c_ULTIMATE.start_main_~user~0#1.base|) (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|)))))) is different from false [2024-11-28 05:02:51,478 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_2453 (Array (_ BitVec 32) (_ BitVec 32)))) (= (_ bv0 1) (bvadd (_ bv1 1) (select |c_#valid| (let ((.cse0 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (select (select (store |c_#memory_$Pointer$#1.base| (select (select |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse0) v_ArrVal_2453) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0)))))) is different from false [2024-11-28 05:02:52,014 INFO L349 Elim1Store]: treesize reduction 7, result has 77.4 percent of original size [2024-11-28 05:02:52,014 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 37 treesize of output 36 [2024-11-28 05:02:52,027 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_2453 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_2499 (Array (_ BitVec 32) (_ BitVec 32)))) (= (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (select (select (let ((.cse0 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem34#1.base| v_ArrVal_2499))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_2453)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)) |c_ULTIMATE.start_main_#t~mem34#1.base|)) is different from false [2024-11-28 05:02:52,031 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 05:02:52,031 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [469111531] [2024-11-28 05:02:52,031 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [469111531] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 05:02:52,031 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [302816122] [2024-11-28 05:02:52,031 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:02:52,031 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-28 05:02:52,031 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e873d2ae-f983-47fb-8d96-6a2fc4d3444a/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 [2024-11-28 05:02:52,034 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e873d2ae-f983-47fb-8d96-6a2fc4d3444a/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-28 05:02:52,036 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e873d2ae-f983-47fb-8d96-6a2fc4d3444a/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (25)] Waiting until timeout for monitored process [2024-11-28 05:02:55,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:02:55,183 INFO L256 TraceCheckSpWp]: Trace formula consists of 835 conjuncts, 63 conjuncts are in the unsatisfiable core [2024-11-28 05:02:55,190 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:02:55,194 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2024-11-28 05:02:55,342 INFO L349 Elim1Store]: treesize reduction 22, result has 35.3 percent of original size [2024-11-28 05:02:55,342 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 19 treesize of output 27 [2024-11-28 05:02:55,400 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-28 05:02:55,598 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 12 [2024-11-28 05:02:56,774 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-28 05:02:56,775 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 44 treesize of output 43 [2024-11-28 05:02:56,925 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-28 05:02:56,925 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 44 treesize of output 43 [2024-11-28 05:02:56,954 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 15 [2024-11-28 05:02:57,032 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 946 trivial. 0 not checked. [2024-11-28 05:02:57,033 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 05:02:57,054 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_2923 (Array (_ BitVec 32) (_ BitVec 32)))) (= (_ bv0 1) (bvadd (_ bv1 1) (select |c_#valid| (select (select (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem36#1.base| v_ArrVal_2923) |c_ULTIMATE.start_main_~user~0#1.base|) (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|)))))) is different from false [2024-11-28 05:02:57,066 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_2923 (Array (_ BitVec 32) (_ BitVec 32)))) (= (_ bv0 1) (bvadd (_ bv1 1) (select |c_#valid| (let ((.cse0 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (select (select (store |c_#memory_$Pointer$#1.base| (select (select |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse0) v_ArrVal_2923) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0)))))) is different from false [2024-11-28 05:02:57,489 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_2969 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_2923 (Array (_ BitVec 32) (_ BitVec 32)))) (= (_ bv0 1) (bvadd (_ bv1 1) (select |c_#valid| (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (select (select (let ((.cse0 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem34#1.base| v_ArrVal_2969))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_2923)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))))) is different from false [2024-11-28 05:02:57,492 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [302816122] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 05:02:57,492 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-28 05:02:57,492 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 9] total 19 [2024-11-28 05:02:57,492 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [960316797] [2024-11-28 05:02:57,492 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-28 05:02:57,492 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-11-28 05:02:57,492 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 05:02:57,493 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-11-28 05:02:57,493 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=358, Unknown=6, NotChecked=258, Total=702 [2024-11-28 05:02:57,493 INFO L87 Difference]: Start difference. First operand 1196 states and 1435 transitions. Second operand has 20 states, 17 states have (on average 7.411764705882353) internal successors, (126), 19 states have internal predecessors, (126), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-28 05:03:04,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:03:04,785 INFO L93 Difference]: Finished difference Result 1655 states and 2019 transitions. [2024-11-28 05:03:04,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-28 05:03:04,786 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 17 states have (on average 7.411764705882353) internal successors, (126), 19 states have internal predecessors, (126), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 122 [2024-11-28 05:03:04,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:03:04,789 INFO L225 Difference]: With dead ends: 1655 [2024-11-28 05:03:04,789 INFO L226 Difference]: Without dead ends: 1655 [2024-11-28 05:03:04,790 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 260 GetRequests, 230 SyntacticMatches, 1 SemanticMatches, 29 ConstructedPredicates, 6 IntricatePredicates, 0 DeprecatedPredicates, 120 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=105, Invalid=513, Unknown=6, NotChecked=306, Total=930 [2024-11-28 05:03:04,790 INFO L435 NwaCegarLoop]: 505 mSDtfsCounter, 841 mSDsluCounter, 3635 mSDsCounter, 0 mSdLazyCounter, 3640 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 844 SdHoareTripleChecker+Valid, 4140 SdHoareTripleChecker+Invalid, 3652 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 3640 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.1s IncrementalHoareTripleChecker+Time [2024-11-28 05:03:04,791 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [844 Valid, 4140 Invalid, 3652 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 3640 Invalid, 0 Unknown, 0 Unchecked, 7.1s Time] [2024-11-28 05:03:04,793 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1655 states. [2024-11-28 05:03:04,806 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1655 to 1195. [2024-11-28 05:03:04,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1195 states, 830 states have (on average 1.716867469879518) internal successors, (1425), 1188 states have internal predecessors, (1425), 5 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-28 05:03:04,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1195 states to 1195 states and 1434 transitions. [2024-11-28 05:03:04,810 INFO L78 Accepts]: Start accepts. Automaton has 1195 states and 1434 transitions. Word has length 122 [2024-11-28 05:03:04,810 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:03:04,810 INFO L471 AbstractCegarLoop]: Abstraction has 1195 states and 1434 transitions. [2024-11-28 05:03:04,811 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 17 states have (on average 7.411764705882353) internal successors, (126), 19 states have internal predecessors, (126), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-28 05:03:04,811 INFO L276 IsEmpty]: Start isEmpty. Operand 1195 states and 1434 transitions. [2024-11-28 05:03:04,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2024-11-28 05:03:04,812 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:03:04,812 INFO L218 NwaCegarLoop]: trace histogram [44, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:03:04,832 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e873d2ae-f983-47fb-8d96-6a2fc4d3444a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Forceful destruction successful, exit code 0 [2024-11-28 05:03:05,023 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e873d2ae-f983-47fb-8d96-6a2fc4d3444a/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (25)] Forceful destruction successful, exit code 0 [2024-11-28 05:03:05,213 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e873d2ae-f983-47fb-8d96-6a2fc4d3444a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e873d2ae-f983-47fb-8d96-6a2fc4d3444a/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt [2024-11-28 05:03:05,213 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr85REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 520 more)] === [2024-11-28 05:03:05,213 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:03:05,213 INFO L85 PathProgramCache]: Analyzing trace with hash -1269609853, now seen corresponding path program 1 times [2024-11-28 05:03:05,214 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 05:03:05,214 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1861376450] [2024-11-28 05:03:05,214 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:03:05,214 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:03:05,214 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e873d2ae-f983-47fb-8d96-6a2fc4d3444a/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:03:05,216 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e873d2ae-f983-47fb-8d96-6a2fc4d3444a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 05:03:05,217 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e873d2ae-f983-47fb-8d96-6a2fc4d3444a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2024-11-28 05:03:05,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:03:05,785 INFO L256 TraceCheckSpWp]: Trace formula consists of 835 conjuncts, 112 conjuncts are in the unsatisfiable core [2024-11-28 05:03:05,798 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:03:05,952 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-11-28 05:03:05,971 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2024-11-28 05:03:05,971 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13 [2024-11-28 05:03:06,012 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2024-11-28 05:03:06,028 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-28 05:03:06,165 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 10 [2024-11-28 05:03:06,170 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2024-11-28 05:03:07,004 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-28 05:03:07,004 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 62 treesize of output 57 [2024-11-28 05:03:07,020 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 13 [2024-11-28 05:03:07,164 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-28 05:03:07,164 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 62 treesize of output 57 [2024-11-28 05:03:07,175 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 13 [2024-11-28 05:03:07,214 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 13 [2024-11-28 05:03:07,223 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2024-11-28 05:03:07,261 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 946 trivial. 0 not checked. [2024-11-28 05:03:07,262 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 05:03:07,413 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (and (forall ((v_ArrVal_3439 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (select (select (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem36#1.base| v_ArrVal_3439) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (bvule (bvadd .cse0 (_ bv4 32)) (bvadd .cse0 (_ bv8 32))))) (forall ((v_ArrVal_3439 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_3438 (Array (_ BitVec 32) (_ BitVec 32)))) (bvule (bvadd (select (select (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem36#1.base| v_ArrVal_3439) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) (_ bv8 32)) (select |c_#length| (select (select (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem36#1.base| v_ArrVal_3438) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))))) is different from false [2024-11-28 05:03:07,442 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (let ((.cse0 (select (select |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (and (forall ((v_ArrVal_3439 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_3438 (Array (_ BitVec 32) (_ BitVec 32)))) (bvule (bvadd (select (select (store |c_#memory_$Pointer$#1.offset| .cse0 v_ArrVal_3439) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) (_ bv8 32)) (select |c_#length| (select (select (store |c_#memory_$Pointer$#1.base| .cse0 v_ArrVal_3438) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))) (forall ((v_ArrVal_3439 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse2 (select (select (store |c_#memory_$Pointer$#1.offset| .cse0 v_ArrVal_3439) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (bvule (bvadd .cse2 (_ bv4 32)) (bvadd .cse2 (_ bv8 32)))))))) is different from false [2024-11-28 05:03:08,891 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (and (forall ((v_ArrVal_3439 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_3530 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_3531 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (select (select (store (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem34#1.base| v_ArrVal_3530) (select (select (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem34#1.base| v_ArrVal_3531) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_3439) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (bvule (bvadd (_ bv4 32) .cse0) (bvadd (_ bv8 32) .cse0)))) (forall ((v_ArrVal_3439 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_3438 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_3530 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_3531 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse3 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem34#1.base| v_ArrVal_3531))) (let ((.cse2 (select (select .cse3 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (bvule (bvadd (_ bv8 32) (select (select (store (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem34#1.base| v_ArrVal_3530) .cse2 v_ArrVal_3439) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)) (select |c_#length| (select (select (store .cse3 .cse2 v_ArrVal_3438) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))))))) is different from false [2024-11-28 05:03:08,904 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 05:03:08,904 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1861376450] [2024-11-28 05:03:08,904 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1861376450] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 05:03:08,904 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1077981542] [2024-11-28 05:03:08,904 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:03:08,904 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-28 05:03:08,904 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e873d2ae-f983-47fb-8d96-6a2fc4d3444a/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 [2024-11-28 05:03:08,906 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e873d2ae-f983-47fb-8d96-6a2fc4d3444a/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-28 05:03:08,907 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e873d2ae-f983-47fb-8d96-6a2fc4d3444a/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (27)] Waiting until timeout for monitored process [2024-11-28 05:03:12,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:03:12,455 INFO L256 TraceCheckSpWp]: Trace formula consists of 835 conjuncts, 114 conjuncts are in the unsatisfiable core [2024-11-28 05:03:12,469 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:03:12,473 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2024-11-28 05:03:12,592 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-11-28 05:03:12,605 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2024-11-28 05:03:12,605 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13 [2024-11-28 05:03:12,622 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-28 05:03:12,626 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2024-11-28 05:03:12,690 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 10 [2024-11-28 05:03:12,699 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2024-11-28 05:03:13,521 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-28 05:03:13,522 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 62 treesize of output 57 [2024-11-28 05:03:13,530 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 13 [2024-11-28 05:03:13,604 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-28 05:03:13,605 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 62 treesize of output 57 [2024-11-28 05:03:13,614 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 13 [2024-11-28 05:03:13,641 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 13 [2024-11-28 05:03:13,652 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2024-11-28 05:03:13,653 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 946 trivial. 0 not checked. [2024-11-28 05:03:13,654 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 05:03:13,709 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (and (forall ((v_ArrVal_4002 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (select (select (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem36#1.base| v_ArrVal_4002) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (bvule (bvadd .cse0 (_ bv4 32)) (bvadd .cse0 (_ bv8 32))))) (forall ((v_ArrVal_4003 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_4002 (Array (_ BitVec 32) (_ BitVec 32)))) (bvule (bvadd (select (select (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem36#1.base| v_ArrVal_4002) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) (_ bv8 32)) (select |c_#length| (select (select (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem36#1.base| v_ArrVal_4003) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))))) is different from false [2024-11-28 05:03:13,734 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (let ((.cse0 (select (select |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (and (forall ((v_ArrVal_4003 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_4002 (Array (_ BitVec 32) (_ BitVec 32)))) (bvule (bvadd (_ bv8 32) (select (select (store |c_#memory_$Pointer$#1.offset| .cse0 v_ArrVal_4002) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)) (select |c_#length| (select (select (store |c_#memory_$Pointer$#1.base| .cse0 v_ArrVal_4003) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))) (forall ((v_ArrVal_4002 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse2 (select (select (store |c_#memory_$Pointer$#1.offset| .cse0 v_ArrVal_4002) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (bvule (bvadd (_ bv4 32) .cse2) (bvadd (_ bv8 32) .cse2))))))) is different from false [2024-11-28 05:03:15,438 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1077981542] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 05:03:15,438 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-28 05:03:15,438 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9] total 10 [2024-11-28 05:03:15,438 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [861930295] [2024-11-28 05:03:15,438 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-28 05:03:15,439 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-28 05:03:15,439 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 05:03:15,439 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-28 05:03:15,439 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=147, Unknown=12, NotChecked=140, Total=342 [2024-11-28 05:03:15,439 INFO L87 Difference]: Start difference. First operand 1195 states and 1434 transitions. Second operand has 11 states, 9 states have (on average 12.0) internal successors, (108), 11 states have internal predecessors, (108), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-28 05:03:24,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:03:24,774 INFO L93 Difference]: Finished difference Result 1652 states and 2016 transitions. [2024-11-28 05:03:24,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-28 05:03:24,774 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 9 states have (on average 12.0) internal successors, (108), 11 states have internal predecessors, (108), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 122 [2024-11-28 05:03:24,774 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:03:24,778 INFO L225 Difference]: With dead ends: 1652 [2024-11-28 05:03:24,778 INFO L226 Difference]: Without dead ends: 1652 [2024-11-28 05:03:24,779 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 262 GetRequests, 236 SyntacticMatches, 3 SemanticMatches, 23 ConstructedPredicates, 5 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=79, Invalid=306, Unknown=15, NotChecked=200, Total=600 [2024-11-28 05:03:24,780 INFO L435 NwaCegarLoop]: 508 mSDtfsCounter, 842 mSDsluCounter, 2279 mSDsCounter, 0 mSdLazyCounter, 4062 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 844 SdHoareTripleChecker+Valid, 2787 SdHoareTripleChecker+Invalid, 4068 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 4062 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.8s IncrementalHoareTripleChecker+Time [2024-11-28 05:03:24,780 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [844 Valid, 2787 Invalid, 4068 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 4062 Invalid, 0 Unknown, 0 Unchecked, 8.8s Time] [2024-11-28 05:03:24,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1652 states. [2024-11-28 05:03:24,793 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1652 to 1194. [2024-11-28 05:03:24,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1194 states, 830 states have (on average 1.7156626506024097) internal successors, (1424), 1187 states have internal predecessors, (1424), 5 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-28 05:03:24,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1194 states to 1194 states and 1433 transitions. [2024-11-28 05:03:24,817 INFO L78 Accepts]: Start accepts. Automaton has 1194 states and 1433 transitions. Word has length 122 [2024-11-28 05:03:24,818 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:03:24,818 INFO L471 AbstractCegarLoop]: Abstraction has 1194 states and 1433 transitions. [2024-11-28 05:03:24,819 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 9 states have (on average 12.0) internal successors, (108), 11 states have internal predecessors, (108), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-28 05:03:24,819 INFO L276 IsEmpty]: Start isEmpty. Operand 1194 states and 1433 transitions. [2024-11-28 05:03:24,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2024-11-28 05:03:24,820 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:03:24,820 INFO L218 NwaCegarLoop]: trace histogram [44, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:03:24,840 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e873d2ae-f983-47fb-8d96-6a2fc4d3444a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Ended with exit code 0 [2024-11-28 05:03:25,030 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e873d2ae-f983-47fb-8d96-6a2fc4d3444a/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (27)] Forceful destruction successful, exit code 0 [2024-11-28 05:03:25,220 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e873d2ae-f983-47fb-8d96-6a2fc4d3444a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e873d2ae-f983-47fb-8d96-6a2fc4d3444a/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt [2024-11-28 05:03:25,221 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr88REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 520 more)] === [2024-11-28 05:03:25,221 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:03:25,221 INFO L85 PathProgramCache]: Analyzing trace with hash -1464820241, now seen corresponding path program 1 times [2024-11-28 05:03:25,222 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 05:03:25,222 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [639107832] [2024-11-28 05:03:25,222 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:03:25,222 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:03:25,222 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e873d2ae-f983-47fb-8d96-6a2fc4d3444a/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:03:25,226 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e873d2ae-f983-47fb-8d96-6a2fc4d3444a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 05:03:25,229 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e873d2ae-f983-47fb-8d96-6a2fc4d3444a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2024-11-28 05:03:25,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:03:25,875 INFO L256 TraceCheckSpWp]: Trace formula consists of 864 conjuncts, 61 conjuncts are in the unsatisfiable core [2024-11-28 05:03:25,883 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:03:26,002 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2024-11-28 05:03:26,002 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13 [2024-11-28 05:03:26,019 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-28 05:03:26,330 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-28 05:03:26,331 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 31 treesize of output 32 [2024-11-28 05:03:26,386 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-28 05:03:26,386 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 31 treesize of output 32 [2024-11-28 05:03:26,441 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-28 05:03:26,442 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 44 treesize of output 43 [2024-11-28 05:03:26,484 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 15 [2024-11-28 05:03:26,505 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 946 trivial. 0 not checked. [2024-11-28 05:03:26,506 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 05:03:26,551 INFO L349 Elim1Store]: treesize reduction 7, result has 63.2 percent of original size [2024-11-28 05:03:26,551 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 24 [2024-11-28 05:03:26,611 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_4533 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (let ((.cse0 (select (select |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (= (select (select (store |c_#memory_$Pointer$#1.base| .cse0 v_ArrVal_4533) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) .cse0)))) is different from false [2024-11-28 05:03:26,625 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_4533 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_4532 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse1 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem36#1.base| v_ArrVal_4532)) (.cse2 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (let ((.cse0 (select (select .cse1 |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (= .cse0 (select (select (store .cse1 .cse0 v_ArrVal_4533) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))))) is different from false [2024-11-28 05:03:26,634 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_4533 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_4532 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse2 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (let ((.cse0 (store |c_#memory_$Pointer$#1.base| (select (select |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse2) v_ArrVal_4532))) (let ((.cse1 (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (= (select (select (store .cse0 .cse1 v_ArrVal_4533) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2) .cse1))))) is different from false [2024-11-28 05:03:27,030 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_4579 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_4533 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_4532 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse2 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (let ((.cse1 (let ((.cse3 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem34#1.base| v_ArrVal_4579))) (store .cse3 (select (select .cse3 |c_ULTIMATE.start_main_~user~0#1.base|) .cse2) v_ArrVal_4532)))) (let ((.cse0 (select (select .cse1 |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (= .cse0 (select (select (store .cse1 .cse0 v_ArrVal_4533) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2)))))) is different from false [2024-11-28 05:03:27,033 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 05:03:27,033 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [639107832] [2024-11-28 05:03:27,033 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [639107832] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 05:03:27,033 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1945152908] [2024-11-28 05:03:27,033 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:03:27,034 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-28 05:03:27,034 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e873d2ae-f983-47fb-8d96-6a2fc4d3444a/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 [2024-11-28 05:03:27,035 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e873d2ae-f983-47fb-8d96-6a2fc4d3444a/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-28 05:03:27,039 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e873d2ae-f983-47fb-8d96-6a2fc4d3444a/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (29)] Waiting until timeout for monitored process [2024-11-28 05:03:39,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:03:39,665 INFO L256 TraceCheckSpWp]: Trace formula consists of 864 conjuncts, 65 conjuncts are in the unsatisfiable core [2024-11-28 05:03:39,674 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:03:39,680 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2024-11-28 05:03:39,820 INFO L349 Elim1Store]: treesize reduction 22, result has 35.3 percent of original size [2024-11-28 05:03:39,821 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 19 treesize of output 27 [2024-11-28 05:03:39,871 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-28 05:03:40,021 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 12 [2024-11-28 05:03:41,025 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-28 05:03:41,025 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 44 treesize of output 43 [2024-11-28 05:03:41,190 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-28 05:03:41,190 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 44 treesize of output 43 [2024-11-28 05:03:41,299 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-28 05:03:41,299 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 44 treesize of output 43 [2024-11-28 05:03:41,324 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 15 [2024-11-28 05:03:41,379 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 946 trivial. 0 not checked. [2024-11-28 05:03:41,379 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 05:03:41,477 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_5019 (Array (_ BitVec 32) (_ BitVec 32)))) (= (_ bv0 1) (bvadd (_ bv1 1) (select |c_#valid| (let ((.cse0 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (select (select (store |c_#memory_$Pointer$#1.base| (select (select |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse0) v_ArrVal_5019) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0)))))) is different from false [2024-11-28 05:03:41,491 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_5018 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_5019 (Array (_ BitVec 32) (_ BitVec 32)))) (= (_ bv0 1) (bvadd (_ bv1 1) (select |c_#valid| (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (select (select (let ((.cse0 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem36#1.base| v_ArrVal_5018))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_5019)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))))) is different from false [2024-11-28 05:03:41,500 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_5018 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_5019 (Array (_ BitVec 32) (_ BitVec 32)))) (= (_ bv0 1) (bvadd (select |c_#valid| (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (select (select (let ((.cse0 (store |c_#memory_$Pointer$#1.base| (select (select |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_5018))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_5019)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (_ bv1 1)))) is different from false [2024-11-28 05:03:41,911 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_5018 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_5019 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_5065 (Array (_ BitVec 32) (_ BitVec 32)))) (= (_ bv0 1) (bvadd (_ bv1 1) (select |c_#valid| (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (select (select (let ((.cse0 (let ((.cse2 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem34#1.base| v_ArrVal_5065))) (store .cse2 (select (select .cse2 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_5018)))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_5019)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))))) is different from false [2024-11-28 05:03:41,914 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1945152908] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 05:03:41,914 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-28 05:03:41,914 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 10] total 20 [2024-11-28 05:03:41,914 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [23866833] [2024-11-28 05:03:41,914 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-28 05:03:41,914 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-11-28 05:03:41,915 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 05:03:41,915 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-11-28 05:03:41,915 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=99, Invalid=460, Unknown=25, NotChecked=408, Total=992 [2024-11-28 05:03:41,915 INFO L87 Difference]: Start difference. First operand 1194 states and 1433 transitions. Second operand has 21 states, 18 states have (on average 7.333333333333333) internal successors, (132), 21 states have internal predecessors, (132), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-28 05:03:54,716 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:03:54,716 INFO L93 Difference]: Finished difference Result 1653 states and 2017 transitions. [2024-11-28 05:03:54,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-28 05:03:54,717 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 18 states have (on average 7.333333333333333) internal successors, (132), 21 states have internal predecessors, (132), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 125 [2024-11-28 05:03:54,717 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:03:54,719 INFO L225 Difference]: With dead ends: 1653 [2024-11-28 05:03:54,719 INFO L226 Difference]: Without dead ends: 1653 [2024-11-28 05:03:54,719 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 270 GetRequests, 237 SyntacticMatches, 1 SemanticMatches, 32 ConstructedPredicates, 8 IntricatePredicates, 0 DeprecatedPredicates, 127 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=112, Invalid=545, Unknown=25, NotChecked=440, Total=1122 [2024-11-28 05:03:54,720 INFO L435 NwaCegarLoop]: 506 mSDtfsCounter, 832 mSDsluCounter, 6544 mSDsCounter, 0 mSdLazyCounter, 6195 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 835 SdHoareTripleChecker+Valid, 7050 SdHoareTripleChecker+Invalid, 6205 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 6195 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.6s IncrementalHoareTripleChecker+Time [2024-11-28 05:03:54,720 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [835 Valid, 7050 Invalid, 6205 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [10 Valid, 6195 Invalid, 0 Unknown, 0 Unchecked, 12.6s Time] [2024-11-28 05:03:54,721 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1653 states. [2024-11-28 05:03:54,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1653 to 1193. [2024-11-28 05:03:54,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1193 states, 830 states have (on average 1.7144578313253012) internal successors, (1423), 1186 states have internal predecessors, (1423), 5 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-28 05:03:54,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1193 states to 1193 states and 1432 transitions. [2024-11-28 05:03:54,733 INFO L78 Accepts]: Start accepts. Automaton has 1193 states and 1432 transitions. Word has length 125 [2024-11-28 05:03:54,733 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:03:54,733 INFO L471 AbstractCegarLoop]: Abstraction has 1193 states and 1432 transitions. [2024-11-28 05:03:54,733 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 18 states have (on average 7.333333333333333) internal successors, (132), 21 states have internal predecessors, (132), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-28 05:03:54,734 INFO L276 IsEmpty]: Start isEmpty. Operand 1193 states and 1432 transitions. [2024-11-28 05:03:54,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2024-11-28 05:03:54,735 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:03:54,735 INFO L218 NwaCegarLoop]: trace histogram [44, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:03:54,757 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e873d2ae-f983-47fb-8d96-6a2fc4d3444a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Forceful destruction successful, exit code 0 [2024-11-28 05:03:54,953 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e873d2ae-f983-47fb-8d96-6a2fc4d3444a/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (29)] Ended with exit code 0 [2024-11-28 05:03:55,135 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e873d2ae-f983-47fb-8d96-6a2fc4d3444a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,29 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e873d2ae-f983-47fb-8d96-6a2fc4d3444a/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt [2024-11-28 05:03:55,135 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr89REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 520 more)] === [2024-11-28 05:03:55,136 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:03:55,136 INFO L85 PathProgramCache]: Analyzing trace with hash -1464820240, now seen corresponding path program 1 times [2024-11-28 05:03:55,136 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 05:03:55,136 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [434988532] [2024-11-28 05:03:55,136 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:03:55,137 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:03:55,137 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e873d2ae-f983-47fb-8d96-6a2fc4d3444a/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:03:55,138 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e873d2ae-f983-47fb-8d96-6a2fc4d3444a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 05:03:55,139 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e873d2ae-f983-47fb-8d96-6a2fc4d3444a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Waiting until timeout for monitored process [2024-11-28 05:03:55,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:03:55,824 INFO L256 TraceCheckSpWp]: Trace formula consists of 864 conjuncts, 115 conjuncts are in the unsatisfiable core [2024-11-28 05:03:55,835 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:03:55,944 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-11-28 05:03:55,960 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2024-11-28 05:03:55,960 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13 [2024-11-28 05:03:55,988 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-28 05:03:55,994 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2024-11-28 05:03:56,117 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 10 [2024-11-28 05:03:56,124 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2024-11-28 05:03:56,958 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-28 05:03:56,958 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 62 treesize of output 57 [2024-11-28 05:03:56,967 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 13 [2024-11-28 05:03:57,089 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-28 05:03:57,089 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 62 treesize of output 57 [2024-11-28 05:03:57,099 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 13 [2024-11-28 05:03:57,211 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-28 05:03:57,211 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 62 treesize of output 57 [2024-11-28 05:03:57,221 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 13 [2024-11-28 05:03:57,250 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 13 [2024-11-28 05:03:57,258 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2024-11-28 05:03:57,292 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 946 trivial. 0 not checked. [2024-11-28 05:03:57,292 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 05:03:57,463 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (and (forall ((v_ArrVal_5551 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (select (select (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem37#1.base| v_ArrVal_5551) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (bvule (bvadd (_ bv8 32) .cse0) (bvadd (_ bv12 32) .cse0)))) (forall ((v_ArrVal_5551 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_5552 (Array (_ BitVec 32) (_ BitVec 32)))) (bvule (bvadd (_ bv12 32) (select (select (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem37#1.base| v_ArrVal_5551) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)) (select |c_#length| (select (select (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem37#1.base| v_ArrVal_5552) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))))) is different from false [2024-11-28 05:03:57,499 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (let ((.cse0 (select (select |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (and (forall ((v_ArrVal_5551 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_5552 (Array (_ BitVec 32) (_ BitVec 32)))) (bvule (bvadd (select (select (store |c_#memory_$Pointer$#1.offset| .cse0 v_ArrVal_5551) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) (_ bv12 32)) (select |c_#length| (select (select (store |c_#memory_$Pointer$#1.base| .cse0 v_ArrVal_5552) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))) (forall ((v_ArrVal_5551 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse2 (select (select (store |c_#memory_$Pointer$#1.offset| .cse0 v_ArrVal_5551) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (bvule (bvadd .cse2 (_ bv8 32)) (bvadd .cse2 (_ bv12 32)))))))) is different from false [2024-11-28 05:03:57,609 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (and (forall ((v_ArrVal_5549 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_5550 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_5551 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (select (select (store (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem36#1.base| v_ArrVal_5549) (select (select (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem36#1.base| v_ArrVal_5550) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_5551) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (bvule (bvadd (_ bv8 32) .cse0) (bvadd (_ bv12 32) .cse0)))) (forall ((v_ArrVal_5549 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_5550 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_5551 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_5552 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse3 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem36#1.base| v_ArrVal_5550))) (let ((.cse2 (select (select .cse3 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (bvule (bvadd (_ bv12 32) (select (select (store (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem36#1.base| v_ArrVal_5549) .cse2 v_ArrVal_5551) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)) (select |c_#length| (select (select (store .cse3 .cse2 v_ArrVal_5552) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))))))) is different from false [2024-11-28 05:03:57,680 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse2 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (let ((.cse1 (select (select |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (and (forall ((v_ArrVal_5549 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_5550 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_5551 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (select (select (store (store |c_#memory_$Pointer$#1.offset| .cse1 v_ArrVal_5549) (select (select (store |c_#memory_$Pointer$#1.base| .cse1 v_ArrVal_5550) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2) v_ArrVal_5551) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (bvule (bvadd (_ bv8 32) .cse0) (bvadd (_ bv12 32) .cse0)))) (forall ((v_ArrVal_5549 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_5550 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_5551 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_5552 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse4 (store |c_#memory_$Pointer$#1.base| .cse1 v_ArrVal_5550))) (let ((.cse3 (select (select .cse4 |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (bvule (bvadd (_ bv12 32) (select (select (store (store |c_#memory_$Pointer$#1.offset| .cse1 v_ArrVal_5549) .cse3 v_ArrVal_5551) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2)) (select |c_#length| (select (select (store .cse4 .cse3 v_ArrVal_5552) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))))))))) is different from false [2024-11-28 05:03:59,423 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse2 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (and (forall ((v_ArrVal_5549 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_5643 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_5644 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_5550 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_5551 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_5552 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse4 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem34#1.base| v_ArrVal_5643))) (let ((.cse0 (select (select .cse4 |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (let ((.cse3 (store .cse4 .cse0 v_ArrVal_5550))) (let ((.cse1 (select (select .cse3 |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (bvule (bvadd (_ bv12 32) (select (select (store (store (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem34#1.base| v_ArrVal_5644) .cse0 v_ArrVal_5549) .cse1 v_ArrVal_5551) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2)) (select |c_#length| (select (select (store .cse3 .cse1 v_ArrVal_5552) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2)))))))) (forall ((v_ArrVal_5549 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_5643 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_5644 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_5550 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_5551 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse5 (select (select (let ((.cse7 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem34#1.base| v_ArrVal_5643))) (let ((.cse6 (select (select .cse7 |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (store (store (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem34#1.base| v_ArrVal_5644) .cse6 v_ArrVal_5549) (select (select (store .cse7 .cse6 v_ArrVal_5550) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2) v_ArrVal_5551))) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (bvule (bvadd (_ bv8 32) .cse5) (bvadd (_ bv12 32) .cse5)))))) is different from false [2024-11-28 05:03:59,437 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 05:03:59,438 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [434988532] [2024-11-28 05:03:59,438 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [434988532] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 05:03:59,438 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1969563363] [2024-11-28 05:03:59,438 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:03:59,438 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-28 05:03:59,438 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e873d2ae-f983-47fb-8d96-6a2fc4d3444a/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 [2024-11-28 05:03:59,440 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e873d2ae-f983-47fb-8d96-6a2fc4d3444a/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-28 05:03:59,441 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e873d2ae-f983-47fb-8d96-6a2fc4d3444a/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (31)] Waiting until timeout for monitored process [2024-11-28 05:04:12,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:04:12,724 INFO L256 TraceCheckSpWp]: Trace formula consists of 864 conjuncts, 118 conjuncts are in the unsatisfiable core [2024-11-28 05:04:12,738 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:04:12,744 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2024-11-28 05:04:13,057 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2024-11-28 05:04:13,057 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13 [2024-11-28 05:04:13,075 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-11-28 05:04:13,097 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-28 05:04:13,106 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2024-11-28 05:04:13,237 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 10 [2024-11-28 05:04:13,246 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2024-11-28 05:04:14,643 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-28 05:04:14,644 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 62 treesize of output 57 [2024-11-28 05:04:14,665 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 13 [2024-11-28 05:04:14,796 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-28 05:04:14,797 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 62 treesize of output 57 [2024-11-28 05:04:14,813 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 13 [2024-11-28 05:04:14,912 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-28 05:04:14,913 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 62 treesize of output 57 [2024-11-28 05:04:14,927 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 13 [2024-11-28 05:04:14,973 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 13 [2024-11-28 05:04:14,986 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2024-11-28 05:04:14,987 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 946 trivial. 0 not checked. [2024-11-28 05:04:14,987 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 05:04:15,076 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (and (forall ((v_ArrVal_6133 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (select (select (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem37#1.base| v_ArrVal_6133) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (bvule (bvadd (_ bv8 32) .cse0) (bvadd (_ bv12 32) .cse0)))) (forall ((v_ArrVal_6132 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6133 (Array (_ BitVec 32) (_ BitVec 32)))) (bvule (bvadd (_ bv12 32) (select (select (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem37#1.base| v_ArrVal_6133) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)) (select |c_#length| (select (select (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem37#1.base| v_ArrVal_6132) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))))) is different from false [2024-11-28 05:04:15,110 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse2 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (let ((.cse1 (select (select |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (and (forall ((v_ArrVal_6133 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (select (select (store |c_#memory_$Pointer$#1.offset| .cse1 v_ArrVal_6133) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (bvule (bvadd (_ bv8 32) .cse0) (bvadd (_ bv12 32) .cse0)))) (forall ((v_ArrVal_6132 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6133 (Array (_ BitVec 32) (_ BitVec 32)))) (bvule (bvadd (_ bv12 32) (select (select (store |c_#memory_$Pointer$#1.offset| .cse1 v_ArrVal_6133) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2)) (select |c_#length| (select (select (store |c_#memory_$Pointer$#1.base| .cse1 v_ArrVal_6132) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))))))) is different from false [2024-11-28 05:04:15,192 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (and (forall ((v_ArrVal_6130 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6131 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6132 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6133 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse2 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem36#1.base| v_ArrVal_6131))) (let ((.cse0 (select (select .cse2 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (bvule (bvadd (_ bv12 32) (select (select (store (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem36#1.base| v_ArrVal_6130) .cse0 v_ArrVal_6133) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)) (select |c_#length| (select (select (store .cse2 .cse0 v_ArrVal_6132) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))))) (forall ((v_ArrVal_6130 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6131 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6133 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse3 (select (select (store (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem36#1.base| v_ArrVal_6130) (select (select (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem36#1.base| v_ArrVal_6131) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_6133) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (bvule (bvadd (_ bv8 32) .cse3) (bvadd (_ bv12 32) .cse3)))))) is different from false [2024-11-28 05:04:15,278 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse2 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (let ((.cse0 (select (select |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (and (forall ((v_ArrVal_6130 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6131 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6132 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6133 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse3 (store |c_#memory_$Pointer$#1.base| .cse0 v_ArrVal_6131))) (let ((.cse1 (select (select .cse3 |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (bvule (bvadd (_ bv12 32) (select (select (store (store |c_#memory_$Pointer$#1.offset| .cse0 v_ArrVal_6130) .cse1 v_ArrVal_6133) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2)) (select |c_#length| (select (select (store .cse3 .cse1 v_ArrVal_6132) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2)))))) (forall ((v_ArrVal_6130 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6131 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6133 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse4 (select (select (store (store |c_#memory_$Pointer$#1.offset| .cse0 v_ArrVal_6130) (select (select (store |c_#memory_$Pointer$#1.base| .cse0 v_ArrVal_6131) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2) v_ArrVal_6133) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (bvule (bvadd (_ bv8 32) .cse4) (bvadd (_ bv12 32) .cse4))))))) is different from false [2024-11-28 05:04:17,386 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse3 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (and (forall ((v_ArrVal_6130 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6131 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6224 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6225 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6133 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (select (select (let ((.cse2 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem34#1.base| v_ArrVal_6225))) (let ((.cse1 (select (select .cse2 |c_ULTIMATE.start_main_~user~0#1.base|) .cse3))) (store (store (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem34#1.base| v_ArrVal_6224) .cse1 v_ArrVal_6130) (select (select (store .cse2 .cse1 v_ArrVal_6131) |c_ULTIMATE.start_main_~user~0#1.base|) .cse3) v_ArrVal_6133))) |c_ULTIMATE.start_main_~user~0#1.base|) .cse3))) (bvule (bvadd (_ bv8 32) .cse0) (bvadd (_ bv12 32) .cse0)))) (forall ((v_ArrVal_6130 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6131 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6224 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6225 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6132 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6133 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse7 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem34#1.base| v_ArrVal_6225))) (let ((.cse4 (select (select .cse7 |c_ULTIMATE.start_main_~user~0#1.base|) .cse3))) (let ((.cse6 (store .cse7 .cse4 v_ArrVal_6131))) (let ((.cse5 (select (select .cse6 |c_ULTIMATE.start_main_~user~0#1.base|) .cse3))) (bvule (bvadd (_ bv12 32) (select (select (store (store (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem34#1.base| v_ArrVal_6224) .cse4 v_ArrVal_6130) .cse5 v_ArrVal_6133) |c_ULTIMATE.start_main_~user~0#1.base|) .cse3)) (select |c_#length| (select (select (store .cse6 .cse5 v_ArrVal_6132) |c_ULTIMATE.start_main_~user~0#1.base|) .cse3)))))))))) is different from false [2024-11-28 05:04:17,399 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1969563363] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 05:04:17,399 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-28 05:04:17,399 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 10] total 11 [2024-11-28 05:04:17,399 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [353437277] [2024-11-28 05:04:17,399 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-28 05:04:17,399 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-28 05:04:17,399 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 05:04:17,400 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-28 05:04:17,400 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=158, Unknown=10, NotChecked=330, Total=552 [2024-11-28 05:04:17,400 INFO L87 Difference]: Start difference. First operand 1193 states and 1432 transitions. Second operand has 12 states, 10 states have (on average 11.1) internal successors, (111), 12 states have internal predecessors, (111), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-28 05:04:33,842 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:04:33,842 INFO L93 Difference]: Finished difference Result 1650 states and 2014 transitions. [2024-11-28 05:04:33,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-28 05:04:33,843 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 10 states have (on average 11.1) internal successors, (111), 12 states have internal predecessors, (111), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 125 [2024-11-28 05:04:33,843 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:04:33,845 INFO L225 Difference]: With dead ends: 1650 [2024-11-28 05:04:33,846 INFO L226 Difference]: Without dead ends: 1650 [2024-11-28 05:04:33,846 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 275 GetRequests, 243 SyntacticMatches, 3 SemanticMatches, 29 ConstructedPredicates, 10 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=96, Invalid=354, Unknown=10, NotChecked=470, Total=930 [2024-11-28 05:04:33,846 INFO L435 NwaCegarLoop]: 507 mSDtfsCounter, 840 mSDsluCounter, 2283 mSDsCounter, 0 mSdLazyCounter, 4061 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 842 SdHoareTripleChecker+Valid, 2790 SdHoareTripleChecker+Invalid, 4067 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 4061 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.9s IncrementalHoareTripleChecker+Time [2024-11-28 05:04:33,847 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [842 Valid, 2790 Invalid, 4067 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 4061 Invalid, 0 Unknown, 0 Unchecked, 15.9s Time] [2024-11-28 05:04:33,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1650 states. [2024-11-28 05:04:33,864 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1650 to 1192. [2024-11-28 05:04:33,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1192 states, 830 states have (on average 1.7132530120481928) internal successors, (1422), 1185 states have internal predecessors, (1422), 5 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-28 05:04:33,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1192 states to 1192 states and 1431 transitions. [2024-11-28 05:04:33,868 INFO L78 Accepts]: Start accepts. Automaton has 1192 states and 1431 transitions. Word has length 125 [2024-11-28 05:04:33,868 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:04:33,868 INFO L471 AbstractCegarLoop]: Abstraction has 1192 states and 1431 transitions. [2024-11-28 05:04:33,868 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 10 states have (on average 11.1) internal successors, (111), 12 states have internal predecessors, (111), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-28 05:04:33,869 INFO L276 IsEmpty]: Start isEmpty. Operand 1192 states and 1431 transitions. [2024-11-28 05:04:33,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2024-11-28 05:04:33,873 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:04:33,873 INFO L218 NwaCegarLoop]: trace histogram [44, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:04:33,899 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e873d2ae-f983-47fb-8d96-6a2fc4d3444a/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (31)] Ended with exit code 0 [2024-11-28 05:04:34,089 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e873d2ae-f983-47fb-8d96-6a2fc4d3444a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Ended with exit code 0 [2024-11-28 05:04:34,274 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e873d2ae-f983-47fb-8d96-6a2fc4d3444a/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt,30 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e873d2ae-f983-47fb-8d96-6a2fc4d3444a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:04:34,274 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr92REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 520 more)] === [2024-11-28 05:04:34,275 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:04:34,275 INFO L85 PathProgramCache]: Analyzing trace with hash -1591733623, now seen corresponding path program 1 times [2024-11-28 05:04:34,275 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 05:04:34,275 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1014437945] [2024-11-28 05:04:34,275 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:04:34,276 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:04:34,276 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e873d2ae-f983-47fb-8d96-6a2fc4d3444a/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:04:34,277 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e873d2ae-f983-47fb-8d96-6a2fc4d3444a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 05:04:34,278 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e873d2ae-f983-47fb-8d96-6a2fc4d3444a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Waiting until timeout for monitored process [2024-11-28 05:04:35,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:04:35,052 INFO L256 TraceCheckSpWp]: Trace formula consists of 893 conjuncts, 63 conjuncts are in the unsatisfiable core [2024-11-28 05:04:35,059 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:04:35,329 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2024-11-28 05:04:35,329 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13 [2024-11-28 05:04:35,367 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-28 05:04:36,013 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-28 05:04:36,013 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 31 treesize of output 32 [2024-11-28 05:04:36,128 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-28 05:04:36,128 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 31 treesize of output 32 [2024-11-28 05:04:36,248 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-28 05:04:36,249 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 31 treesize of output 32 [2024-11-28 05:04:36,378 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-28 05:04:36,378 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 44 treesize of output 43 [2024-11-28 05:04:36,487 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 15 [2024-11-28 05:04:36,546 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 946 trivial. 0 not checked. [2024-11-28 05:04:36,547 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 05:04:36,656 INFO L349 Elim1Store]: treesize reduction 7, result has 63.2 percent of original size [2024-11-28 05:04:36,656 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 24 [2024-11-28 05:04:36,669 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_6679 (Array (_ BitVec 32) (_ BitVec 32)))) (= (select (select (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem38#1.base| v_ArrVal_6679) |c_ULTIMATE.start_main_~user~0#1.base|) (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|)) |c_ULTIMATE.start_main_#t~mem38#1.base|)) is different from false [2024-11-28 05:04:36,684 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_6679 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (let ((.cse0 (select (select |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (= .cse0 (select (select (store |c_#memory_$Pointer$#1.base| .cse0 v_ArrVal_6679) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))))) is different from false [2024-11-28 05:04:36,708 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_6679 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6678 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem37#1.base| v_ArrVal_6678)) (.cse2 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (let ((.cse1 (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (= (select (select (store .cse0 .cse1 v_ArrVal_6679) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2) .cse1)))) is different from false [2024-11-28 05:04:36,725 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_6679 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6678 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse2 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (let ((.cse1 (store |c_#memory_$Pointer$#1.base| (select (select |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse2) v_ArrVal_6678))) (let ((.cse0 (select (select .cse1 |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (= .cse0 (select (select (store .cse1 .cse0 v_ArrVal_6679) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2)))))) is different from false [2024-11-28 05:04:36,759 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_6679 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6677 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6678 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse2 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (let ((.cse0 (let ((.cse3 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem36#1.base| v_ArrVal_6677))) (store .cse3 (select (select .cse3 |c_ULTIMATE.start_main_~user~0#1.base|) .cse2) v_ArrVal_6678)))) (let ((.cse1 (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (= (select (select (store .cse0 .cse1 v_ArrVal_6679) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2) .cse1))))) is different from false [2024-11-28 05:04:36,782 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_6679 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6677 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6678 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse2 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (let ((.cse0 (let ((.cse3 (store |c_#memory_$Pointer$#1.base| (select (select |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse2) v_ArrVal_6677))) (store .cse3 (select (select .cse3 |c_ULTIMATE.start_main_~user~0#1.base|) .cse2) v_ArrVal_6678)))) (let ((.cse1 (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (= (select (select (store .cse0 .cse1 v_ArrVal_6679) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2) .cse1))))) is different from false [2024-11-28 05:04:37,392 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_6679 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6725 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6677 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6678 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse2 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (let ((.cse0 (let ((.cse3 (let ((.cse4 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem34#1.base| v_ArrVal_6725))) (store .cse4 (select (select .cse4 |c_ULTIMATE.start_main_~user~0#1.base|) .cse2) v_ArrVal_6677)))) (store .cse3 (select (select .cse3 |c_ULTIMATE.start_main_~user~0#1.base|) .cse2) v_ArrVal_6678)))) (let ((.cse1 (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (= (select (select (store .cse0 .cse1 v_ArrVal_6679) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2) .cse1))))) is different from false [2024-11-28 05:04:37,396 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 05:04:37,396 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1014437945] [2024-11-28 05:04:37,397 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1014437945] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 05:04:37,397 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [675874121] [2024-11-28 05:04:37,397 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:04:37,397 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-28 05:04:37,397 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e873d2ae-f983-47fb-8d96-6a2fc4d3444a/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 [2024-11-28 05:04:37,399 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e873d2ae-f983-47fb-8d96-6a2fc4d3444a/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-28 05:04:37,400 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e873d2ae-f983-47fb-8d96-6a2fc4d3444a/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (33)] Waiting until timeout for monitored process [2024-11-28 05:04:54,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:04:54,355 INFO L256 TraceCheckSpWp]: Trace formula consists of 893 conjuncts, 67 conjuncts are in the unsatisfiable core [2024-11-28 05:04:54,364 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:04:54,375 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2024-11-28 05:04:54,792 INFO L349 Elim1Store]: treesize reduction 22, result has 35.3 percent of original size [2024-11-28 05:04:54,793 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 19 treesize of output 27 [2024-11-28 05:04:54,899 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-28 05:04:55,204 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 12 [2024-11-28 05:04:56,947 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-28 05:04:56,947 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 44 treesize of output 43 [2024-11-28 05:04:57,253 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-28 05:04:57,253 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 44 treesize of output 43 [2024-11-28 05:04:57,458 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-28 05:04:57,458 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 44 treesize of output 43 [2024-11-28 05:04:57,670 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-28 05:04:57,670 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 44 treesize of output 43 [2024-11-28 05:04:57,715 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 15 [2024-11-28 05:04:57,836 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 946 trivial. 0 not checked. [2024-11-28 05:04:57,836 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 05:04:58,025 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_7181 (Array (_ BitVec 32) (_ BitVec 32)))) (= (_ bv0 1) (bvadd (_ bv1 1) (select |c_#valid| (let ((.cse0 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (select (select (store |c_#memory_$Pointer$#1.base| (select (select |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse0) v_ArrVal_7181) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0)))))) is different from false [2024-11-28 05:04:58,048 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_7180 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7181 (Array (_ BitVec 32) (_ BitVec 32)))) (= (_ bv0 1) (bvadd (select |c_#valid| (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (select (select (let ((.cse0 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem37#1.base| v_ArrVal_7180))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_7181)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (_ bv1 1)))) is different from false [2024-11-28 05:04:58,065 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_7180 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7181 (Array (_ BitVec 32) (_ BitVec 32)))) (= (_ bv0 1) (bvadd (_ bv1 1) (select |c_#valid| (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (select (select (let ((.cse0 (store |c_#memory_$Pointer$#1.base| (select (select |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_7180))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_7181)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))))) is different from false [2024-11-28 05:04:58,091 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_7180 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7181 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7179 (Array (_ BitVec 32) (_ BitVec 32)))) (= (_ bv0 1) (bvadd (_ bv1 1) (select |c_#valid| (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (select (select (let ((.cse0 (let ((.cse2 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem36#1.base| v_ArrVal_7179))) (store .cse2 (select (select .cse2 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_7180)))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_7181)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))))) is different from false [2024-11-28 05:04:58,111 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_7180 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7181 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7179 (Array (_ BitVec 32) (_ BitVec 32)))) (= (_ bv0 1) (bvadd (_ bv1 1) (select |c_#valid| (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (select (select (let ((.cse0 (let ((.cse2 (store |c_#memory_$Pointer$#1.base| (select (select |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_7179))) (store .cse2 (select (select .cse2 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_7180)))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_7181)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))))) is different from false [2024-11-28 05:04:58,684 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_7180 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7181 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7227 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7179 (Array (_ BitVec 32) (_ BitVec 32)))) (= (_ bv0 1) (bvadd (_ bv1 1) (select |c_#valid| (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (select (select (let ((.cse0 (let ((.cse2 (let ((.cse3 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem34#1.base| v_ArrVal_7227))) (store .cse3 (select (select .cse3 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_7179)))) (store .cse2 (select (select .cse2 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_7180)))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_7181)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))))) is different from false [2024-11-28 05:04:58,692 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [675874121] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 05:04:58,692 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-28 05:04:58,692 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 11] total 22 [2024-11-28 05:04:58,692 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [547264416] [2024-11-28 05:04:58,692 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-28 05:04:58,692 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-28 05:04:58,692 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 05:04:58,693 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-28 05:04:58,693 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=116, Invalid=513, Unknown=23, NotChecked=754, Total=1406 [2024-11-28 05:04:58,694 INFO L87 Difference]: Start difference. First operand 1192 states and 1431 transitions. Second operand has 23 states, 20 states have (on average 6.9) internal successors, (138), 23 states have internal predecessors, (138), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-28 05:05:17,561 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:05:17,561 INFO L93 Difference]: Finished difference Result 1651 states and 2015 transitions. [2024-11-28 05:05:17,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-28 05:05:17,562 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 20 states have (on average 6.9) internal successors, (138), 23 states have internal predecessors, (138), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 128 [2024-11-28 05:05:17,562 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:05:17,564 INFO L225 Difference]: With dead ends: 1651 [2024-11-28 05:05:17,564 INFO L226 Difference]: Without dead ends: 1651 [2024-11-28 05:05:17,565 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 282 GetRequests, 243 SyntacticMatches, 1 SemanticMatches, 38 ConstructedPredicates, 13 IntricatePredicates, 0 DeprecatedPredicates, 136 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=129, Invalid=601, Unknown=24, NotChecked=806, Total=1560 [2024-11-28 05:05:17,565 INFO L435 NwaCegarLoop]: 505 mSDtfsCounter, 831 mSDsluCounter, 5599 mSDsCounter, 0 mSdLazyCounter, 5321 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 834 SdHoareTripleChecker+Valid, 6104 SdHoareTripleChecker+Invalid, 5335 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 5321 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.6s IncrementalHoareTripleChecker+Time [2024-11-28 05:05:17,566 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [834 Valid, 6104 Invalid, 5335 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [14 Valid, 5321 Invalid, 0 Unknown, 0 Unchecked, 18.6s Time] [2024-11-28 05:05:17,568 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1651 states. [2024-11-28 05:05:17,578 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1651 to 1191. [2024-11-28 05:05:17,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1191 states, 830 states have (on average 1.7120481927710844) internal successors, (1421), 1184 states have internal predecessors, (1421), 5 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-28 05:05:17,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1191 states to 1191 states and 1430 transitions. [2024-11-28 05:05:17,596 INFO L78 Accepts]: Start accepts. Automaton has 1191 states and 1430 transitions. Word has length 128 [2024-11-28 05:05:17,596 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:05:17,596 INFO L471 AbstractCegarLoop]: Abstraction has 1191 states and 1430 transitions. [2024-11-28 05:05:17,596 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 20 states have (on average 6.9) internal successors, (138), 23 states have internal predecessors, (138), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-28 05:05:17,596 INFO L276 IsEmpty]: Start isEmpty. Operand 1191 states and 1430 transitions. [2024-11-28 05:05:17,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2024-11-28 05:05:17,598 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:05:17,598 INFO L218 NwaCegarLoop]: trace histogram [44, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:05:17,613 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e873d2ae-f983-47fb-8d96-6a2fc4d3444a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Ended with exit code 0 [2024-11-28 05:05:17,820 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e873d2ae-f983-47fb-8d96-6a2fc4d3444a/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (33)] Ended with exit code 0 [2024-11-28 05:05:17,998 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 32 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e873d2ae-f983-47fb-8d96-6a2fc4d3444a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,33 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e873d2ae-f983-47fb-8d96-6a2fc4d3444a/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt [2024-11-28 05:05:17,998 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr93REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 520 more)] === [2024-11-28 05:05:17,999 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:05:17,999 INFO L85 PathProgramCache]: Analyzing trace with hash -1591733622, now seen corresponding path program 1 times [2024-11-28 05:05:18,000 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 05:05:18,000 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [847949274] [2024-11-28 05:05:18,000 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:05:18,000 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:05:18,000 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e873d2ae-f983-47fb-8d96-6a2fc4d3444a/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:05:18,003 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e873d2ae-f983-47fb-8d96-6a2fc4d3444a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 05:05:18,005 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e873d2ae-f983-47fb-8d96-6a2fc4d3444a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Waiting until timeout for monitored process [2024-11-28 05:05:18,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:05:18,775 INFO L256 TraceCheckSpWp]: Trace formula consists of 893 conjuncts, 118 conjuncts are in the unsatisfiable core [2024-11-28 05:05:18,786 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:05:19,033 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2024-11-28 05:05:19,033 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13 [2024-11-28 05:05:19,050 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-11-28 05:05:19,097 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2024-11-28 05:05:19,109 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-28 05:05:19,352 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 10 [2024-11-28 05:05:19,364 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2024-11-28 05:05:20,739 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-28 05:05:20,739 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 62 treesize of output 57 [2024-11-28 05:05:20,755 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 13 [2024-11-28 05:05:20,979 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-28 05:05:20,979 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 62 treesize of output 57 [2024-11-28 05:05:20,995 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 13 [2024-11-28 05:05:21,195 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-28 05:05:21,196 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 62 treesize of output 57 [2024-11-28 05:05:21,211 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 13 [2024-11-28 05:05:21,441 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-28 05:05:21,442 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 62 treesize of output 57 [2024-11-28 05:05:21,458 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 13 [2024-11-28 05:05:21,505 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 13 [2024-11-28 05:05:21,519 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2024-11-28 05:05:21,592 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 946 trivial. 0 not checked. [2024-11-28 05:05:21,592 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 05:05:21,860 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse0 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (and (forall ((v_ArrVal_7731 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7730 (Array (_ BitVec 32) (_ BitVec 32)))) (bvule (bvadd (_ bv24 32) (select (select (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem38#1.base| v_ArrVal_7731) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0)) (select |c_#length| (select (select (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem38#1.base| v_ArrVal_7730) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0)))) (forall ((v_ArrVal_7731 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse1 (select (select (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem38#1.base| v_ArrVal_7731) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0))) (bvule (bvadd (_ bv20 32) .cse1) (bvadd (_ bv24 32) .cse1)))))) is different from false [2024-11-28 05:05:21,899 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse2 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (let ((.cse1 (select (select |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (and (forall ((v_ArrVal_7731 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (select (select (store |c_#memory_$Pointer$#1.offset| .cse1 v_ArrVal_7731) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (bvule (bvadd (_ bv20 32) .cse0) (bvadd (_ bv24 32) .cse0)))) (forall ((v_ArrVal_7731 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7730 (Array (_ BitVec 32) (_ BitVec 32)))) (bvule (bvadd (_ bv24 32) (select (select (store |c_#memory_$Pointer$#1.offset| .cse1 v_ArrVal_7731) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2)) (select |c_#length| (select (select (store |c_#memory_$Pointer$#1.base| .cse1 v_ArrVal_7730) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))))))) is different from false [2024-11-28 05:05:22,009 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (and (forall ((v_ArrVal_7729 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7728 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7731 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7730 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse2 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem37#1.base| v_ArrVal_7729))) (let ((.cse0 (select (select .cse2 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (bvule (bvadd (_ bv24 32) (select (select (store (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem37#1.base| v_ArrVal_7728) .cse0 v_ArrVal_7731) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)) (select |c_#length| (select (select (store .cse2 .cse0 v_ArrVal_7730) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))))) (forall ((v_ArrVal_7729 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7728 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7731 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse3 (select (select (store (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem37#1.base| v_ArrVal_7728) (select (select (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem37#1.base| v_ArrVal_7729) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_7731) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (bvule (bvadd (_ bv20 32) .cse3) (bvadd (_ bv24 32) .cse3)))))) is different from false [2024-11-28 05:05:22,084 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse2 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (let ((.cse0 (select (select |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (and (forall ((v_ArrVal_7729 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7728 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7731 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7730 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse3 (store |c_#memory_$Pointer$#1.base| .cse0 v_ArrVal_7729))) (let ((.cse1 (select (select .cse3 |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (bvule (bvadd (select (select (store (store |c_#memory_$Pointer$#1.offset| .cse0 v_ArrVal_7728) .cse1 v_ArrVal_7731) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2) (_ bv24 32)) (select |c_#length| (select (select (store .cse3 .cse1 v_ArrVal_7730) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2)))))) (forall ((v_ArrVal_7729 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7728 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7731 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse4 (select (select (store (store |c_#memory_$Pointer$#1.offset| .cse0 v_ArrVal_7728) (select (select (store |c_#memory_$Pointer$#1.base| .cse0 v_ArrVal_7729) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2) v_ArrVal_7731) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (bvule (bvadd .cse4 (_ bv20 32)) (bvadd .cse4 (_ bv24 32)))))))) is different from false [2024-11-28 05:05:22,370 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse2 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (and (forall ((v_ArrVal_7729 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7728 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7727 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7726 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7731 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7730 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse4 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem36#1.base| v_ArrVal_7727))) (let ((.cse0 (select (select .cse4 |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (let ((.cse3 (store .cse4 .cse0 v_ArrVal_7729))) (let ((.cse1 (select (select .cse3 |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (bvule (bvadd (_ bv24 32) (select (select (store (store (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem36#1.base| v_ArrVal_7726) .cse0 v_ArrVal_7728) .cse1 v_ArrVal_7731) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2)) (select |c_#length| (select (select (store .cse3 .cse1 v_ArrVal_7730) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2)))))))) (forall ((v_ArrVal_7729 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7728 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7727 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7726 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7731 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse5 (select (select (let ((.cse7 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem36#1.base| v_ArrVal_7727))) (let ((.cse6 (select (select .cse7 |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (store (store (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem36#1.base| v_ArrVal_7726) .cse6 v_ArrVal_7728) (select (select (store .cse7 .cse6 v_ArrVal_7729) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2) v_ArrVal_7731))) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (bvule (bvadd (_ bv20 32) .cse5) (bvadd (_ bv24 32) .cse5)))))) is different from false [2024-11-28 05:05:31,339 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse3 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (and (forall ((v_ArrVal_7729 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7728 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7727 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7726 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7823 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7822 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7731 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7730 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse6 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem34#1.base| v_ArrVal_7823))) (let ((.cse0 (select (select .cse6 |c_ULTIMATE.start_main_~user~0#1.base|) .cse3))) (let ((.cse5 (store .cse6 .cse0 v_ArrVal_7727))) (let ((.cse1 (select (select .cse5 |c_ULTIMATE.start_main_~user~0#1.base|) .cse3))) (let ((.cse4 (store .cse5 .cse1 v_ArrVal_7729))) (let ((.cse2 (select (select .cse4 |c_ULTIMATE.start_main_~user~0#1.base|) .cse3))) (bvule (bvadd (_ bv24 32) (select (select (store (store (store (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem34#1.base| v_ArrVal_7822) .cse0 v_ArrVal_7726) .cse1 v_ArrVal_7728) .cse2 v_ArrVal_7731) |c_ULTIMATE.start_main_~user~0#1.base|) .cse3)) (select |c_#length| (select (select (store .cse4 .cse2 v_ArrVal_7730) |c_ULTIMATE.start_main_~user~0#1.base|) .cse3)))))))))) (forall ((v_ArrVal_7729 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7728 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7727 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7726 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7823 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7822 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7731 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse7 (select (select (let ((.cse11 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem34#1.base| v_ArrVal_7823))) (let ((.cse8 (select (select .cse11 |c_ULTIMATE.start_main_~user~0#1.base|) .cse3))) (let ((.cse10 (store .cse11 .cse8 v_ArrVal_7727))) (let ((.cse9 (select (select .cse10 |c_ULTIMATE.start_main_~user~0#1.base|) .cse3))) (store (store (store (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem34#1.base| v_ArrVal_7822) .cse8 v_ArrVal_7726) .cse9 v_ArrVal_7728) (select (select (store .cse10 .cse9 v_ArrVal_7729) |c_ULTIMATE.start_main_~user~0#1.base|) .cse3) v_ArrVal_7731))))) |c_ULTIMATE.start_main_~user~0#1.base|) .cse3))) (bvule (bvadd (_ bv20 32) .cse7) (bvadd (_ bv24 32) .cse7)))))) is different from false [2024-11-28 05:05:31,384 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 05:05:31,384 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [847949274] [2024-11-28 05:05:31,384 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [847949274] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 05:05:31,384 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [644915617] [2024-11-28 05:05:31,384 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:05:31,384 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-28 05:05:31,384 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e873d2ae-f983-47fb-8d96-6a2fc4d3444a/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 [2024-11-28 05:05:31,386 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e873d2ae-f983-47fb-8d96-6a2fc4d3444a/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-28 05:05:31,388 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e873d2ae-f983-47fb-8d96-6a2fc4d3444a/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (35)] Waiting until timeout for monitored process [2024-11-28 05:05:48,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:05:48,547 INFO L256 TraceCheckSpWp]: Trace formula consists of 893 conjuncts, 119 conjuncts are in the unsatisfiable core [2024-11-28 05:05:48,559 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:05:48,610 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2024-11-28 05:05:51,650 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2024-11-28 05:05:51,651 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13 [2024-11-28 05:05:51,812 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-11-28 05:05:51,979 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2024-11-28 05:05:52,089 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-28 05:05:52,938 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 10 [2024-11-28 05:05:52,992 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2024-11-28 05:06:03,619 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-28 05:06:03,620 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 62 treesize of output 57 [2024-11-28 05:06:03,726 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 13 [2024-11-28 05:06:04,847 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-28 05:06:04,848 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 62 treesize of output 57 [2024-11-28 05:06:04,957 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 13 [2024-11-28 05:06:05,750 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-28 05:06:05,751 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 62 treesize of output 57 [2024-11-28 05:06:05,857 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 13 [2024-11-28 05:06:06,652 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-28 05:06:06,653 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 62 treesize of output 57 [2024-11-28 05:06:06,769 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 13 [2024-11-28 05:06:07,090 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 13 [2024-11-28 05:06:07,195 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2024-11-28 05:06:07,248 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 946 trivial. 0 not checked. [2024-11-28 05:06:07,248 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 05:06:07,758 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse0 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (and (forall ((v_ArrVal_8328 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8327 (Array (_ BitVec 32) (_ BitVec 32)))) (bvule (bvadd (select (select (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem38#1.base| v_ArrVal_8328) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0) (_ bv24 32)) (select |c_#length| (select (select (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem38#1.base| v_ArrVal_8327) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0)))) (forall ((v_ArrVal_8328 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse1 (select (select (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem38#1.base| v_ArrVal_8328) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0))) (bvule (bvadd .cse1 (_ bv20 32)) (bvadd .cse1 (_ bv24 32))))))) is different from false [2024-11-28 05:06:07,944 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse2 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (let ((.cse1 (select (select |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (and (forall ((v_ArrVal_8328 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (select (select (store |c_#memory_$Pointer$#1.offset| .cse1 v_ArrVal_8328) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (bvule (bvadd .cse0 (_ bv20 32)) (bvadd .cse0 (_ bv24 32))))) (forall ((v_ArrVal_8328 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8327 (Array (_ BitVec 32) (_ BitVec 32)))) (bvule (bvadd (select (select (store |c_#memory_$Pointer$#1.offset| .cse1 v_ArrVal_8328) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2) (_ bv24 32)) (select |c_#length| (select (select (store |c_#memory_$Pointer$#1.base| .cse1 v_ArrVal_8327) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))))))) is different from false [2024-11-28 05:06:08,251 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (and (forall ((v_ArrVal_8328 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8326 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8325 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (select (select (store (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem37#1.base| v_ArrVal_8326) (select (select (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem37#1.base| v_ArrVal_8325) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_8328) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (bvule (bvadd (_ bv20 32) .cse0) (bvadd (_ bv24 32) .cse0)))) (forall ((v_ArrVal_8328 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8327 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8326 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8325 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse3 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem37#1.base| v_ArrVal_8325))) (let ((.cse2 (select (select .cse3 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (bvule (bvadd (_ bv24 32) (select (select (store (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem37#1.base| v_ArrVal_8326) .cse2 v_ArrVal_8328) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)) (select |c_#length| (select (select (store .cse3 .cse2 v_ArrVal_8327) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))))))) is different from false [2024-11-28 05:06:08,450 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse2 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (let ((.cse0 (select (select |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (and (forall ((v_ArrVal_8328 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8327 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8326 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8325 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse3 (store |c_#memory_$Pointer$#1.base| .cse0 v_ArrVal_8325))) (let ((.cse1 (select (select .cse3 |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (bvule (bvadd (_ bv24 32) (select (select (store (store |c_#memory_$Pointer$#1.offset| .cse0 v_ArrVal_8326) .cse1 v_ArrVal_8328) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2)) (select |c_#length| (select (select (store .cse3 .cse1 v_ArrVal_8327) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2)))))) (forall ((v_ArrVal_8328 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8326 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8325 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse4 (select (select (store (store |c_#memory_$Pointer$#1.offset| .cse0 v_ArrVal_8326) (select (select (store |c_#memory_$Pointer$#1.base| .cse0 v_ArrVal_8325) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2) v_ArrVal_8328) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (bvule (bvadd (_ bv20 32) .cse4) (bvadd (_ bv24 32) .cse4))))))) is different from false [2024-11-28 05:06:08,783 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse3 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (and (forall ((v_ArrVal_8328 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8326 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8325 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8324 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8323 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (select (select (let ((.cse2 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem36#1.base| v_ArrVal_8323))) (let ((.cse1 (select (select .cse2 |c_ULTIMATE.start_main_~user~0#1.base|) .cse3))) (store (store (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem36#1.base| v_ArrVal_8324) .cse1 v_ArrVal_8326) (select (select (store .cse2 .cse1 v_ArrVal_8325) |c_ULTIMATE.start_main_~user~0#1.base|) .cse3) v_ArrVal_8328))) |c_ULTIMATE.start_main_~user~0#1.base|) .cse3))) (bvule (bvadd (_ bv20 32) .cse0) (bvadd (_ bv24 32) .cse0)))) (forall ((v_ArrVal_8328 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8327 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8326 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8325 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8324 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8323 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse7 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem36#1.base| v_ArrVal_8323))) (let ((.cse4 (select (select .cse7 |c_ULTIMATE.start_main_~user~0#1.base|) .cse3))) (let ((.cse6 (store .cse7 .cse4 v_ArrVal_8325))) (let ((.cse5 (select (select .cse6 |c_ULTIMATE.start_main_~user~0#1.base|) .cse3))) (bvule (bvadd (_ bv24 32) (select (select (store (store (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem36#1.base| v_ArrVal_8324) .cse4 v_ArrVal_8326) .cse5 v_ArrVal_8328) |c_ULTIMATE.start_main_~user~0#1.base|) .cse3)) (select |c_#length| (select (select (store .cse6 .cse5 v_ArrVal_8327) |c_ULTIMATE.start_main_~user~0#1.base|) .cse3)))))))))) is different from false [2024-11-28 05:06:09,003 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse4 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (let ((.cse1 (select (select |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse4))) (and (forall ((v_ArrVal_8328 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8326 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8325 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8324 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8323 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (select (select (let ((.cse3 (store |c_#memory_$Pointer$#1.base| .cse1 v_ArrVal_8323))) (let ((.cse2 (select (select .cse3 |c_ULTIMATE.start_main_~user~0#1.base|) .cse4))) (store (store (store |c_#memory_$Pointer$#1.offset| .cse1 v_ArrVal_8324) .cse2 v_ArrVal_8326) (select (select (store .cse3 .cse2 v_ArrVal_8325) |c_ULTIMATE.start_main_~user~0#1.base|) .cse4) v_ArrVal_8328))) |c_ULTIMATE.start_main_~user~0#1.base|) .cse4))) (bvule (bvadd (_ bv20 32) .cse0) (bvadd (_ bv24 32) .cse0)))) (forall ((v_ArrVal_8328 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8327 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8326 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8325 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8324 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8323 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse8 (store |c_#memory_$Pointer$#1.base| .cse1 v_ArrVal_8323))) (let ((.cse5 (select (select .cse8 |c_ULTIMATE.start_main_~user~0#1.base|) .cse4))) (let ((.cse7 (store .cse8 .cse5 v_ArrVal_8325))) (let ((.cse6 (select (select .cse7 |c_ULTIMATE.start_main_~user~0#1.base|) .cse4))) (bvule (bvadd (_ bv24 32) (select (select (store (store (store |c_#memory_$Pointer$#1.offset| .cse1 v_ArrVal_8324) .cse5 v_ArrVal_8326) .cse6 v_ArrVal_8328) |c_ULTIMATE.start_main_~user~0#1.base|) .cse4)) (select |c_#length| (select (select (store .cse7 .cse6 v_ArrVal_8327) |c_ULTIMATE.start_main_~user~0#1.base|) .cse4))))))))))) is different from false [2024-11-28 05:06:14,772 WARN L286 SmtUtils]: Spent 5.61s on a formula simplification that was a NOOP. DAG size: 356 (called from [L 276] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2024-11-28 05:06:16,545 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse3 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (and (forall ((v_ArrVal_8419 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8328 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8327 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8326 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8325 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8324 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8323 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8420 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse6 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem34#1.base| v_ArrVal_8419))) (let ((.cse0 (select (select .cse6 |c_ULTIMATE.start_main_~user~0#1.base|) .cse3))) (let ((.cse5 (store .cse6 .cse0 v_ArrVal_8323))) (let ((.cse1 (select (select .cse5 |c_ULTIMATE.start_main_~user~0#1.base|) .cse3))) (let ((.cse4 (store .cse5 .cse1 v_ArrVal_8325))) (let ((.cse2 (select (select .cse4 |c_ULTIMATE.start_main_~user~0#1.base|) .cse3))) (bvule (bvadd (_ bv24 32) (select (select (store (store (store (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem34#1.base| v_ArrVal_8420) .cse0 v_ArrVal_8324) .cse1 v_ArrVal_8326) .cse2 v_ArrVal_8328) |c_ULTIMATE.start_main_~user~0#1.base|) .cse3)) (select |c_#length| (select (select (store .cse4 .cse2 v_ArrVal_8327) |c_ULTIMATE.start_main_~user~0#1.base|) .cse3)))))))))) (forall ((v_ArrVal_8419 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8328 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8326 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8325 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8324 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8323 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8420 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse7 (select (select (let ((.cse11 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem34#1.base| v_ArrVal_8419))) (let ((.cse8 (select (select .cse11 |c_ULTIMATE.start_main_~user~0#1.base|) .cse3))) (let ((.cse10 (store .cse11 .cse8 v_ArrVal_8323))) (let ((.cse9 (select (select .cse10 |c_ULTIMATE.start_main_~user~0#1.base|) .cse3))) (store (store (store (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem34#1.base| v_ArrVal_8420) .cse8 v_ArrVal_8324) .cse9 v_ArrVal_8326) (select (select (store .cse10 .cse9 v_ArrVal_8325) |c_ULTIMATE.start_main_~user~0#1.base|) .cse3) v_ArrVal_8328))))) |c_ULTIMATE.start_main_~user~0#1.base|) .cse3))) (bvule (bvadd (_ bv20 32) .cse7) (bvadd (_ bv24 32) .cse7)))))) is different from false [2024-11-28 05:06:16,586 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [644915617] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 05:06:16,586 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-28 05:06:16,586 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 11] total 12 [2024-11-28 05:06:16,586 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [881787401] [2024-11-28 05:06:16,586 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-28 05:06:16,587 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-28 05:06:16,587 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 05:06:16,587 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-28 05:06:16,587 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=204, Unknown=17, NotChecked=520, Total=812 [2024-11-28 05:06:16,587 INFO L87 Difference]: Start difference. First operand 1191 states and 1430 transitions. Second operand has 13 states, 11 states have (on average 10.363636363636363) internal successors, (114), 13 states have internal predecessors, (114), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-28 05:08:45,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:08:45,906 INFO L93 Difference]: Finished difference Result 1648 states and 2012 transitions. [2024-11-28 05:08:45,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-28 05:08:45,907 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 11 states have (on average 10.363636363636363) internal successors, (114), 13 states have internal predecessors, (114), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 128 [2024-11-28 05:08:45,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:08:45,911 INFO L225 Difference]: With dead ends: 1648 [2024-11-28 05:08:45,912 INFO L226 Difference]: Without dead ends: 1648 [2024-11-28 05:08:45,912 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 288 GetRequests, 250 SyntacticMatches, 3 SemanticMatches, 35 ConstructedPredicates, 13 IntricatePredicates, 0 DeprecatedPredicates, 81 ImplicationChecksByTransitivity, 15.2s TimeCoverageRelationStatistics Valid=126, Invalid=460, Unknown=18, NotChecked=728, Total=1332 [2024-11-28 05:08:45,913 INFO L435 NwaCegarLoop]: 506 mSDtfsCounter, 838 mSDsluCounter, 2900 mSDsCounter, 0 mSdLazyCounter, 5240 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 142.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 840 SdHoareTripleChecker+Valid, 3406 SdHoareTripleChecker+Invalid, 5246 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 5240 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 144.0s IncrementalHoareTripleChecker+Time [2024-11-28 05:08:45,913 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [840 Valid, 3406 Invalid, 5246 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [6 Valid, 5240 Invalid, 0 Unknown, 0 Unchecked, 144.0s Time] [2024-11-28 05:08:45,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1648 states. [2024-11-28 05:08:45,927 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1648 to 1190. [2024-11-28 05:08:45,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1190 states, 830 states have (on average 1.7108433734939759) internal successors, (1420), 1183 states have internal predecessors, (1420), 5 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-28 05:08:45,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1190 states to 1190 states and 1429 transitions. [2024-11-28 05:08:45,930 INFO L78 Accepts]: Start accepts. Automaton has 1190 states and 1429 transitions. Word has length 128 [2024-11-28 05:08:45,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:08:45,931 INFO L471 AbstractCegarLoop]: Abstraction has 1190 states and 1429 transitions. [2024-11-28 05:08:45,931 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 11 states have (on average 10.363636363636363) internal successors, (114), 13 states have internal predecessors, (114), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-28 05:08:45,931 INFO L276 IsEmpty]: Start isEmpty. Operand 1190 states and 1429 transitions. [2024-11-28 05:08:45,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2024-11-28 05:08:45,933 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:08:45,933 INFO L218 NwaCegarLoop]: trace histogram [44, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:08:45,958 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e873d2ae-f983-47fb-8d96-6a2fc4d3444a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Forceful destruction successful, exit code 0 [2024-11-28 05:08:46,170 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e873d2ae-f983-47fb-8d96-6a2fc4d3444a/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (35)] Ended with exit code 0 [2024-11-28 05:08:46,334 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 34 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e873d2ae-f983-47fb-8d96-6a2fc4d3444a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,35 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e873d2ae-f983-47fb-8d96-6a2fc4d3444a/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt [2024-11-28 05:08:46,334 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr96REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 520 more)] === [2024-11-28 05:08:46,335 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:08:46,335 INFO L85 PathProgramCache]: Analyzing trace with hash 385163595, now seen corresponding path program 1 times [2024-11-28 05:08:46,336 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 05:08:46,336 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [274881927] [2024-11-28 05:08:46,336 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:08:46,336 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:08:46,337 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e873d2ae-f983-47fb-8d96-6a2fc4d3444a/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:08:46,339 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e873d2ae-f983-47fb-8d96-6a2fc4d3444a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 05:08:46,343 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e873d2ae-f983-47fb-8d96-6a2fc4d3444a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Waiting until timeout for monitored process [2024-11-28 05:08:47,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:08:47,237 INFO L256 TraceCheckSpWp]: Trace formula consists of 930 conjuncts, 67 conjuncts are in the unsatisfiable core [2024-11-28 05:08:47,245 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:08:50,132 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2024-11-28 05:08:50,132 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13 [2024-11-28 05:08:50,516 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-28 05:08:59,449 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-28 05:08:59,449 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 44 treesize of output 43 [2024-11-28 05:09:01,274 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-28 05:09:01,274 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 44 treesize of output 43 [2024-11-28 05:09:02,715 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-28 05:09:02,715 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 44 treesize of output 43 [2024-11-28 05:09:04,149 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-28 05:09:04,149 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 44 treesize of output 43 [2024-11-28 05:09:05,645 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-28 05:09:05,645 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 44 treesize of output 43 [2024-11-28 05:09:05,929 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 15 [2024-11-28 05:09:07,238 INFO L349 Elim1Store]: treesize reduction 24, result has 33.3 percent of original size [2024-11-28 05:09:07,238 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 21 treesize of output 20 [2024-11-28 05:09:07,294 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 946 trivial. 0 not checked. [2024-11-28 05:09:07,294 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 05:09:08,913 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_8892 (Array (_ BitVec 32) (_ BitVec 32)))) (= (_ bv0 1) (bvadd (_ bv1 1) (select |c_#valid| (select (select (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem39#1.base| v_ArrVal_8892) |c_ULTIMATE.start_main_~user~0#1.base|) (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|)))))) is different from false [2024-11-28 05:09:09,038 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_8892 (Array (_ BitVec 32) (_ BitVec 32)))) (= (_ bv0 1) (bvadd (_ bv1 1) (select |c_#valid| (let ((.cse0 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (select (select (store |c_#memory_$Pointer$#1.base| (select (select |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse0) v_ArrVal_8892) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0)))))) is different from false [2024-11-28 05:09:09,205 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_8892 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8891 (Array (_ BitVec 32) (_ BitVec 32)))) (= (_ bv0 1) (bvadd (_ bv1 1) (select |c_#valid| (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (select (select (let ((.cse0 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem38#1.base| v_ArrVal_8891))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_8892)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))))) is different from false [2024-11-28 05:09:09,324 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_8892 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8891 (Array (_ BitVec 32) (_ BitVec 32)))) (= (_ bv0 1) (bvadd (_ bv1 1) (select |c_#valid| (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (select (select (let ((.cse0 (store |c_#memory_$Pointer$#1.base| (select (select |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_8891))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_8892)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))))) is different from false [2024-11-28 05:09:09,494 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_8892 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8891 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8890 (Array (_ BitVec 32) (_ BitVec 32)))) (= (_ bv0 1) (bvadd (_ bv1 1) (select |c_#valid| (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (select (select (let ((.cse0 (let ((.cse2 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem37#1.base| v_ArrVal_8890))) (store .cse2 (select (select .cse2 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_8891)))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_8892)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))))) is different from false [2024-11-28 05:09:09,612 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_8892 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8891 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8890 (Array (_ BitVec 32) (_ BitVec 32)))) (= (_ bv0 1) (bvadd (_ bv1 1) (select |c_#valid| (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (select (select (let ((.cse0 (let ((.cse2 (store |c_#memory_$Pointer$#1.base| (select (select |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_8890))) (store .cse2 (select (select .cse2 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_8891)))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_8892)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))))) is different from false [2024-11-28 05:09:09,782 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_8892 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8891 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8890 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8889 (Array (_ BitVec 32) (_ BitVec 32)))) (= (_ bv0 1) (bvadd (_ bv1 1) (select |c_#valid| (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (select (select (let ((.cse0 (let ((.cse2 (let ((.cse3 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem36#1.base| v_ArrVal_8889))) (store .cse3 (select (select .cse3 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_8890)))) (store .cse2 (select (select .cse2 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_8891)))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_8892)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))))) is different from false [2024-11-28 05:09:09,905 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_8892 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8891 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8890 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8889 (Array (_ BitVec 32) (_ BitVec 32)))) (= (_ bv0 1) (bvadd (_ bv1 1) (select |c_#valid| (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (select (select (let ((.cse0 (let ((.cse2 (let ((.cse3 (store |c_#memory_$Pointer$#1.base| (select (select |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_8889))) (store .cse3 (select (select .cse3 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_8890)))) (store .cse2 (select (select .cse2 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_8891)))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_8892)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))))) is different from false [2024-11-28 05:09:13,699 INFO L349 Elim1Store]: treesize reduction 7, result has 96.5 percent of original size [2024-11-28 05:09:13,699 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 205 treesize of output 204 [2024-11-28 05:09:13,814 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_8892 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8891 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8939 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8890 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8889 (Array (_ BitVec 32) (_ BitVec 32)))) (= |c_ULTIMATE.start_main_#t~mem34#1.base| (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (select (select (let ((.cse0 (let ((.cse2 (let ((.cse3 (let ((.cse4 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem34#1.base| v_ArrVal_8939))) (store .cse4 (select (select .cse4 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_8889)))) (store .cse3 (select (select .cse3 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_8890)))) (store .cse2 (select (select .cse2 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_8891)))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_8892)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))) is different from false [2024-11-28 05:09:13,846 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 05:09:13,846 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [274881927] [2024-11-28 05:09:13,846 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [274881927] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 05:09:13,846 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1603150680] [2024-11-28 05:09:13,847 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:09:13,847 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-28 05:09:13,847 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e873d2ae-f983-47fb-8d96-6a2fc4d3444a/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 [2024-11-28 05:09:13,849 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e873d2ae-f983-47fb-8d96-6a2fc4d3444a/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-28 05:09:13,850 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e873d2ae-f983-47fb-8d96-6a2fc4d3444a/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (37)] Waiting until timeout for monitored process [2024-11-28 05:09:22,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:09:22,543 INFO L256 TraceCheckSpWp]: Trace formula consists of 930 conjuncts, 72 conjuncts are in the unsatisfiable core [2024-11-28 05:09:22,552 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:09:22,641 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2024-11-28 05:09:26,130 INFO L349 Elim1Store]: treesize reduction 22, result has 35.3 percent of original size [2024-11-28 05:09:26,130 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 19 treesize of output 27 [2024-11-28 05:09:27,229 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-28 05:09:29,840 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 12 [2024-11-28 05:09:47,893 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-28 05:09:47,893 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 44 treesize of output 43 [2024-11-28 05:09:50,799 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-28 05:09:50,799 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 44 treesize of output 43 [2024-11-28 05:09:52,710 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-28 05:09:52,711 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 44 treesize of output 43 [2024-11-28 05:09:54,620 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-28 05:09:54,620 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 44 treesize of output 43 [2024-11-28 05:09:56,589 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-28 05:09:56,590 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 44 treesize of output 43 [2024-11-28 05:09:56,951 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 15 [2024-11-28 05:09:58,994 INFO L349 Elim1Store]: treesize reduction 48, result has 32.4 percent of original size [2024-11-28 05:09:58,995 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 28 treesize of output 36 [2024-11-28 05:09:59,148 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 946 trivial. 0 not checked. [2024-11-28 05:09:59,148 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 05:10:01,576 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_9413 (Array (_ BitVec 32) (_ BitVec 32)))) (= (_ bv0 1) (bvadd (_ bv1 1) (select |c_#valid| (let ((.cse0 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (select (select (store |c_#memory_$Pointer$#1.base| (select (select |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse0) v_ArrVal_9413) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0)))))) is different from false [2024-11-28 05:10:01,743 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_9413 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_9412 (Array (_ BitVec 32) (_ BitVec 32)))) (= (_ bv0 1) (bvadd (_ bv1 1) (select |c_#valid| (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (select (select (let ((.cse0 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem38#1.base| v_ArrVal_9412))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_9413)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))))) is different from false [2024-11-28 05:10:01,860 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_9413 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_9412 (Array (_ BitVec 32) (_ BitVec 32)))) (= (_ bv0 1) (bvadd (_ bv1 1) (select |c_#valid| (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (select (select (let ((.cse0 (store |c_#memory_$Pointer$#1.base| (select (select |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_9412))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_9413)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))))) is different from false [2024-11-28 05:10:02,039 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_9413 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_9412 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_9411 (Array (_ BitVec 32) (_ BitVec 32)))) (= (_ bv0 1) (bvadd (_ bv1 1) (select |c_#valid| (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (select (select (let ((.cse0 (let ((.cse2 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem37#1.base| v_ArrVal_9411))) (store .cse2 (select (select .cse2 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_9412)))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_9413)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))))) is different from false [2024-11-28 05:10:02,160 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_9413 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_9412 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_9411 (Array (_ BitVec 32) (_ BitVec 32)))) (= (_ bv0 1) (bvadd (_ bv1 1) (select |c_#valid| (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (select (select (let ((.cse0 (let ((.cse2 (store |c_#memory_$Pointer$#1.base| (select (select |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_9411))) (store .cse2 (select (select .cse2 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_9412)))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_9413)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))))) is different from false [2024-11-28 05:10:02,335 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_9413 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_9412 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_9411 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_9410 (Array (_ BitVec 32) (_ BitVec 32)))) (= (_ bv0 1) (bvadd (_ bv1 1) (select |c_#valid| (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (select (select (let ((.cse0 (let ((.cse2 (let ((.cse3 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem36#1.base| v_ArrVal_9410))) (store .cse3 (select (select .cse3 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_9411)))) (store .cse2 (select (select .cse2 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_9412)))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_9413)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))))) is different from false [2024-11-28 05:10:02,459 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_9413 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_9412 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_9411 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_9410 (Array (_ BitVec 32) (_ BitVec 32)))) (= (_ bv0 1) (bvadd (_ bv1 1) (select |c_#valid| (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (select (select (let ((.cse0 (let ((.cse2 (let ((.cse3 (store |c_#memory_$Pointer$#1.base| (select (select |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_9410))) (store .cse3 (select (select .cse3 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_9411)))) (store .cse2 (select (select .cse2 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_9412)))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_9413)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))))) is different from false [2024-11-28 05:10:06,861 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1603150680] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 05:10:06,861 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-28 05:10:06,861 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 13] total 26 [2024-11-28 05:10:06,861 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [971570310] [2024-11-28 05:10:06,861 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-28 05:10:06,862 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2024-11-28 05:10:06,862 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 05:10:06,862 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2024-11-28 05:10:06,863 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=154, Invalid=759, Unknown=21, NotChecked=1136, Total=2070 [2024-11-28 05:10:06,863 INFO L87 Difference]: Start difference. First operand 1190 states and 1429 transitions. Second operand has 27 states, 24 states have (on average 6.083333333333333) internal successors, (146), 25 states have internal predecessors, (146), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-28 05:11:55,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:11:55,950 INFO L93 Difference]: Finished difference Result 1649 states and 2013 transitions. [2024-11-28 05:11:55,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-28 05:11:55,951 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 24 states have (on average 6.083333333333333) internal successors, (146), 25 states have internal predecessors, (146), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 132 [2024-11-28 05:11:55,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:11:55,953 INFO L225 Difference]: With dead ends: 1649 [2024-11-28 05:11:55,953 INFO L226 Difference]: Without dead ends: 1649 [2024-11-28 05:11:55,954 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 298 GetRequests, 249 SyntacticMatches, 3 SemanticMatches, 46 ConstructedPredicates, 16 IntricatePredicates, 0 DeprecatedPredicates, 266 ImplicationChecksByTransitivity, 24.0s TimeCoverageRelationStatistics Valid=167, Invalid=868, Unknown=21, NotChecked=1200, Total=2256 [2024-11-28 05:11:55,954 INFO L435 NwaCegarLoop]: 502 mSDtfsCounter, 829 mSDsluCounter, 4114 mSDsCounter, 0 mSdLazyCounter, 4112 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 106.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 832 SdHoareTripleChecker+Valid, 4616 SdHoareTripleChecker+Invalid, 4127 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 4112 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 108.0s IncrementalHoareTripleChecker+Time [2024-11-28 05:11:55,954 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [832 Valid, 4616 Invalid, 4127 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 4112 Invalid, 0 Unknown, 0 Unchecked, 108.0s Time] [2024-11-28 05:11:55,956 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1649 states. [2024-11-28 05:11:55,963 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1649 to 1189. [2024-11-28 05:11:55,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1189 states, 830 states have (on average 1.7096385542168675) internal successors, (1419), 1182 states have internal predecessors, (1419), 5 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-28 05:11:55,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1189 states to 1189 states and 1428 transitions. [2024-11-28 05:11:55,965 INFO L78 Accepts]: Start accepts. Automaton has 1189 states and 1428 transitions. Word has length 132 [2024-11-28 05:11:55,965 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:11:55,965 INFO L471 AbstractCegarLoop]: Abstraction has 1189 states and 1428 transitions. [2024-11-28 05:11:55,966 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 24 states have (on average 6.083333333333333) internal successors, (146), 25 states have internal predecessors, (146), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-28 05:11:55,966 INFO L276 IsEmpty]: Start isEmpty. Operand 1189 states and 1428 transitions. [2024-11-28 05:11:55,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2024-11-28 05:11:55,967 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:11:55,967 INFO L218 NwaCegarLoop]: trace histogram [44, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:11:55,996 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e873d2ae-f983-47fb-8d96-6a2fc4d3444a/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (37)] Ended with exit code 0 [2024-11-28 05:11:56,182 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e873d2ae-f983-47fb-8d96-6a2fc4d3444a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Forceful destruction successful, exit code 0 [2024-11-28 05:11:56,367 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 37 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e873d2ae-f983-47fb-8d96-6a2fc4d3444a/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt,36 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e873d2ae-f983-47fb-8d96-6a2fc4d3444a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:11:56,368 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr97REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 520 more)] === [2024-11-28 05:11:56,368 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:11:56,368 INFO L85 PathProgramCache]: Analyzing trace with hash 385163596, now seen corresponding path program 1 times [2024-11-28 05:11:56,369 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 05:11:56,369 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1590683690] [2024-11-28 05:11:56,369 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:11:56,369 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:11:56,369 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e873d2ae-f983-47fb-8d96-6a2fc4d3444a/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:11:56,371 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e873d2ae-f983-47fb-8d96-6a2fc4d3444a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 05:11:56,372 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e873d2ae-f983-47fb-8d96-6a2fc4d3444a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (38)] Waiting until timeout for monitored process [2024-11-28 05:11:57,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:11:57,281 INFO L256 TraceCheckSpWp]: Trace formula consists of 930 conjuncts, 124 conjuncts are in the unsatisfiable core [2024-11-28 05:11:57,294 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:12:00,184 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2024-11-28 05:12:00,184 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13 [2024-11-28 05:12:00,293 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-11-28 05:12:00,786 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2024-11-28 05:12:00,895 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-28 05:12:02,519 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 10 [2024-11-28 05:12:02,575 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2024-11-28 05:12:17,613 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-28 05:12:17,614 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 75 treesize of output 68 [2024-11-28 05:12:17,724 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 13 [2024-11-28 05:12:20,369 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-28 05:12:20,369 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 75 treesize of output 68 [2024-11-28 05:12:20,481 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 13 [2024-11-28 05:12:22,487 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-28 05:12:22,487 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 75 treesize of output 68 [2024-11-28 05:12:22,595 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 13 [2024-11-28 05:12:24,606 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-28 05:12:24,607 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 75 treesize of output 68 [2024-11-28 05:12:24,717 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 13 [2024-11-28 05:12:26,837 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-28 05:12:26,838 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 75 treesize of output 68 [2024-11-28 05:12:26,947 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 13 [2024-11-28 05:12:27,496 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 20 [2024-11-28 05:12:27,659 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2024-11-28 05:12:28,582 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 05:12:29,011 INFO L349 Elim1Store]: treesize reduction 21, result has 30.0 percent of original size [2024-11-28 05:12:29,011 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 19 treesize of output 21 [2024-11-28 05:12:29,309 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2024-11-28 05:12:29,310 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13 [2024-11-28 05:12:30,095 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 946 trivial. 0 not checked. [2024-11-28 05:12:30,095 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 05:12:37,548 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse2 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (let ((.cse1 (select (select |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (and (or (forall ((v_ArrVal_9982 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (select (select (store |c_#memory_$Pointer$#1.offset| .cse1 v_ArrVal_9982) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (bvule .cse0 (bvadd .cse0 (_ bv4 32))))) (forall ((|v_ULTIMATE.start_main_#t~malloc41#1.base_8| (_ BitVec 32))) (not (= (_ bv0 1) (select |c_#valid| |v_ULTIMATE.start_main_#t~malloc41#1.base_8|))))) (forall ((|v_ULTIMATE.start_main_#t~malloc41#1.base_8| (_ BitVec 32)) (v_ArrVal_9983 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_9982 (Array (_ BitVec 32) (_ BitVec 32)))) (or (not (= (_ bv0 1) (select |c_#valid| |v_ULTIMATE.start_main_#t~malloc41#1.base_8|))) (forall ((v_ArrVal_9984 (_ BitVec 32))) (bvule (bvadd (select (select (store |c_#memory_$Pointer$#1.offset| .cse1 v_ArrVal_9982) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2) (_ bv4 32)) (select (store |c_#length| |v_ULTIMATE.start_main_#t~malloc41#1.base_8| v_ArrVal_9984) (select (select (store |c_#memory_$Pointer$#1.base| .cse1 v_ArrVal_9983) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))))))))) is different from false [2024-11-28 05:12:38,183 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (and (or (forall ((v_ArrVal_9981 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_9980 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_9982 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (select (select (store (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem38#1.base| v_ArrVal_9981) (select (select (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem38#1.base| v_ArrVal_9980) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_9982) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (bvule .cse0 (bvadd .cse0 (_ bv4 32))))) (forall ((|v_ULTIMATE.start_main_#t~malloc41#1.base_8| (_ BitVec 32))) (not (= (_ bv0 1) (select |c_#valid| |v_ULTIMATE.start_main_#t~malloc41#1.base_8|))))) (forall ((v_ArrVal_9981 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_9980 (Array (_ BitVec 32) (_ BitVec 32))) (|v_ULTIMATE.start_main_#t~malloc41#1.base_8| (_ BitVec 32)) (v_ArrVal_9983 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_9982 (Array (_ BitVec 32) (_ BitVec 32)))) (or (not (= (_ bv0 1) (select |c_#valid| |v_ULTIMATE.start_main_#t~malloc41#1.base_8|))) (forall ((v_ArrVal_9984 (_ BitVec 32))) (let ((.cse3 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem38#1.base| v_ArrVal_9980))) (let ((.cse2 (select (select .cse3 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (bvule (bvadd (select (select (store (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem38#1.base| v_ArrVal_9981) .cse2 v_ArrVal_9982) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) (_ bv4 32)) (select (store |c_#length| |v_ULTIMATE.start_main_#t~malloc41#1.base_8| v_ArrVal_9984) (select (select (store .cse3 .cse2 v_ArrVal_9983) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))))))))) is different from false [2024-11-28 05:12:38,568 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse2 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (let ((.cse0 (select (select |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (and (forall ((v_ArrVal_9981 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_9980 (Array (_ BitVec 32) (_ BitVec 32))) (|v_ULTIMATE.start_main_#t~malloc41#1.base_8| (_ BitVec 32)) (v_ArrVal_9983 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_9982 (Array (_ BitVec 32) (_ BitVec 32)))) (or (not (= (_ bv0 1) (select |c_#valid| |v_ULTIMATE.start_main_#t~malloc41#1.base_8|))) (forall ((v_ArrVal_9984 (_ BitVec 32))) (let ((.cse3 (store |c_#memory_$Pointer$#1.base| .cse0 v_ArrVal_9980))) (let ((.cse1 (select (select .cse3 |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (bvule (bvadd (_ bv4 32) (select (select (store (store |c_#memory_$Pointer$#1.offset| .cse0 v_ArrVal_9981) .cse1 v_ArrVal_9982) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2)) (select (store |c_#length| |v_ULTIMATE.start_main_#t~malloc41#1.base_8| v_ArrVal_9984) (select (select (store .cse3 .cse1 v_ArrVal_9983) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2)))))))) (or (forall ((v_ArrVal_9981 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_9980 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_9982 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse4 (select (select (store (store |c_#memory_$Pointer$#1.offset| .cse0 v_ArrVal_9981) (select (select (store |c_#memory_$Pointer$#1.base| .cse0 v_ArrVal_9980) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2) v_ArrVal_9982) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (bvule .cse4 (bvadd (_ bv4 32) .cse4)))) (forall ((|v_ULTIMATE.start_main_#t~malloc41#1.base_8| (_ BitVec 32))) (not (= (_ bv0 1) (select |c_#valid| |v_ULTIMATE.start_main_#t~malloc41#1.base_8|)))))))) is different from false [2024-11-28 05:12:39,213 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse3 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (and (or (forall ((v_ArrVal_9981 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_9980 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_9979 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_9978 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_9982 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (select (select (let ((.cse2 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem37#1.base| v_ArrVal_9978))) (let ((.cse1 (select (select .cse2 |c_ULTIMATE.start_main_~user~0#1.base|) .cse3))) (store (store (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem37#1.base| v_ArrVal_9979) .cse1 v_ArrVal_9981) (select (select (store .cse2 .cse1 v_ArrVal_9980) |c_ULTIMATE.start_main_~user~0#1.base|) .cse3) v_ArrVal_9982))) |c_ULTIMATE.start_main_~user~0#1.base|) .cse3))) (bvule .cse0 (bvadd (_ bv4 32) .cse0)))) (forall ((|v_ULTIMATE.start_main_#t~malloc41#1.base_8| (_ BitVec 32))) (not (= (_ bv0 1) (select |c_#valid| |v_ULTIMATE.start_main_#t~malloc41#1.base_8|))))) (forall ((v_ArrVal_9981 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_9980 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_9979 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_9978 (Array (_ BitVec 32) (_ BitVec 32))) (|v_ULTIMATE.start_main_#t~malloc41#1.base_8| (_ BitVec 32)) (v_ArrVal_9983 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_9982 (Array (_ BitVec 32) (_ BitVec 32)))) (or (not (= (_ bv0 1) (select |c_#valid| |v_ULTIMATE.start_main_#t~malloc41#1.base_8|))) (forall ((v_ArrVal_9984 (_ BitVec 32))) (let ((.cse7 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem37#1.base| v_ArrVal_9978))) (let ((.cse4 (select (select .cse7 |c_ULTIMATE.start_main_~user~0#1.base|) .cse3))) (let ((.cse6 (store .cse7 .cse4 v_ArrVal_9980))) (let ((.cse5 (select (select .cse6 |c_ULTIMATE.start_main_~user~0#1.base|) .cse3))) (bvule (bvadd (_ bv4 32) (select (select (store (store (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem37#1.base| v_ArrVal_9979) .cse4 v_ArrVal_9981) .cse5 v_ArrVal_9982) |c_ULTIMATE.start_main_~user~0#1.base|) .cse3)) (select (store |c_#length| |v_ULTIMATE.start_main_#t~malloc41#1.base_8| v_ArrVal_9984) (select (select (store .cse6 .cse5 v_ArrVal_9983) |c_ULTIMATE.start_main_~user~0#1.base|) .cse3)))))))))))) is different from false [2024-11-28 05:12:45,758 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse3 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (and (forall ((v_ArrVal_9981 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_9980 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_9979 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_9978 (Array (_ BitVec 32) (_ BitVec 32))) (|v_ULTIMATE.start_main_#t~malloc41#1.base_8| (_ BitVec 32)) (v_ArrVal_9977 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_9976 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_9983 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_9982 (Array (_ BitVec 32) (_ BitVec 32)))) (or (not (= (_ bv0 1) (select |c_#valid| |v_ULTIMATE.start_main_#t~malloc41#1.base_8|))) (forall ((v_ArrVal_9984 (_ BitVec 32))) (let ((.cse6 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem36#1.base| v_ArrVal_9976))) (let ((.cse0 (select (select .cse6 |c_ULTIMATE.start_main_~user~0#1.base|) .cse3))) (let ((.cse5 (store .cse6 .cse0 v_ArrVal_9978))) (let ((.cse1 (select (select .cse5 |c_ULTIMATE.start_main_~user~0#1.base|) .cse3))) (let ((.cse4 (store .cse5 .cse1 v_ArrVal_9980))) (let ((.cse2 (select (select .cse4 |c_ULTIMATE.start_main_~user~0#1.base|) .cse3))) (bvule (bvadd (_ bv4 32) (select (select (store (store (store (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem36#1.base| v_ArrVal_9977) .cse0 v_ArrVal_9979) .cse1 v_ArrVal_9981) .cse2 v_ArrVal_9982) |c_ULTIMATE.start_main_~user~0#1.base|) .cse3)) (select (store |c_#length| |v_ULTIMATE.start_main_#t~malloc41#1.base_8| v_ArrVal_9984) (select (select (store .cse4 .cse2 v_ArrVal_9983) |c_ULTIMATE.start_main_~user~0#1.base|) .cse3)))))))))))) (or (forall ((v_ArrVal_9981 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_9980 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_9979 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_9978 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_9977 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_9976 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_9982 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse7 (select (select (let ((.cse11 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem36#1.base| v_ArrVal_9976))) (let ((.cse8 (select (select .cse11 |c_ULTIMATE.start_main_~user~0#1.base|) .cse3))) (let ((.cse10 (store .cse11 .cse8 v_ArrVal_9978))) (let ((.cse9 (select (select .cse10 |c_ULTIMATE.start_main_~user~0#1.base|) .cse3))) (store (store (store (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem36#1.base| v_ArrVal_9977) .cse8 v_ArrVal_9979) .cse9 v_ArrVal_9981) (select (select (store .cse10 .cse9 v_ArrVal_9980) |c_ULTIMATE.start_main_~user~0#1.base|) .cse3) v_ArrVal_9982))))) |c_ULTIMATE.start_main_~user~0#1.base|) .cse3))) (bvule .cse7 (bvadd (_ bv4 32) .cse7)))) (forall ((|v_ULTIMATE.start_main_#t~malloc41#1.base_8| (_ BitVec 32))) (not (= (_ bv0 1) (select |c_#valid| |v_ULTIMATE.start_main_#t~malloc41#1.base_8|))))))) is different from false [2024-11-28 05:12:46,163 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse4 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (let ((.cse0 (select (select |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse4))) (and (forall ((v_ArrVal_9981 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_9980 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_9979 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_9978 (Array (_ BitVec 32) (_ BitVec 32))) (|v_ULTIMATE.start_main_#t~malloc41#1.base_8| (_ BitVec 32)) (v_ArrVal_9977 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_9976 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_9983 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_9982 (Array (_ BitVec 32) (_ BitVec 32)))) (or (not (= (_ bv0 1) (select |c_#valid| |v_ULTIMATE.start_main_#t~malloc41#1.base_8|))) (forall ((v_ArrVal_9984 (_ BitVec 32))) (let ((.cse7 (store |c_#memory_$Pointer$#1.base| .cse0 v_ArrVal_9976))) (let ((.cse1 (select (select .cse7 |c_ULTIMATE.start_main_~user~0#1.base|) .cse4))) (let ((.cse6 (store .cse7 .cse1 v_ArrVal_9978))) (let ((.cse2 (select (select .cse6 |c_ULTIMATE.start_main_~user~0#1.base|) .cse4))) (let ((.cse5 (store .cse6 .cse2 v_ArrVal_9980))) (let ((.cse3 (select (select .cse5 |c_ULTIMATE.start_main_~user~0#1.base|) .cse4))) (bvule (bvadd (_ bv4 32) (select (select (store (store (store (store |c_#memory_$Pointer$#1.offset| .cse0 v_ArrVal_9977) .cse1 v_ArrVal_9979) .cse2 v_ArrVal_9981) .cse3 v_ArrVal_9982) |c_ULTIMATE.start_main_~user~0#1.base|) .cse4)) (select (store |c_#length| |v_ULTIMATE.start_main_#t~malloc41#1.base_8| v_ArrVal_9984) (select (select (store .cse5 .cse3 v_ArrVal_9983) |c_ULTIMATE.start_main_~user~0#1.base|) .cse4)))))))))))) (or (forall ((v_ArrVal_9981 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_9980 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_9979 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_9978 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_9977 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_9976 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_9982 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse8 (select (select (let ((.cse12 (store |c_#memory_$Pointer$#1.base| .cse0 v_ArrVal_9976))) (let ((.cse9 (select (select .cse12 |c_ULTIMATE.start_main_~user~0#1.base|) .cse4))) (let ((.cse11 (store .cse12 .cse9 v_ArrVal_9978))) (let ((.cse10 (select (select .cse11 |c_ULTIMATE.start_main_~user~0#1.base|) .cse4))) (store (store (store (store |c_#memory_$Pointer$#1.offset| .cse0 v_ArrVal_9977) .cse9 v_ArrVal_9979) .cse10 v_ArrVal_9981) (select (select (store .cse11 .cse10 v_ArrVal_9980) |c_ULTIMATE.start_main_~user~0#1.base|) .cse4) v_ArrVal_9982))))) |c_ULTIMATE.start_main_~user~0#1.base|) .cse4))) (bvule .cse8 (bvadd (_ bv4 32) .cse8)))) (forall ((|v_ULTIMATE.start_main_#t~malloc41#1.base_8| (_ BitVec 32))) (not (= (_ bv0 1) (select |c_#valid| |v_ULTIMATE.start_main_#t~malloc41#1.base_8|)))))))) is different from false [2024-11-28 05:12:52,458 WARN L286 SmtUtils]: Spent 5.95s on a formula simplification that was a NOOP. DAG size: 362 (called from [L 276] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2024-11-28 05:12:54,047 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 05:12:54,048 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 795 treesize of output 819 [2024-11-28 05:13:00,096 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse5 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (and (forall ((v_prenex_39 (Array (_ BitVec 32) (_ BitVec 32))) (v_prenex_37 (Array (_ BitVec 32) (_ BitVec 32))) (v_prenex_35 (Array (_ BitVec 32) (_ BitVec 32))) (v_prenex_36 (Array (_ BitVec 32) (_ BitVec 32))) (v_prenex_33 (Array (_ BitVec 32) (_ BitVec 32))) (v_prenex_34 (Array (_ BitVec 32) (_ BitVec 32))) (v_prenex_32 (Array (_ BitVec 32) (_ BitVec 32))) (v_prenex_40 (Array (_ BitVec 32) (_ BitVec 32))) (v_prenex_41 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (select (select (let ((.cse7 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem34#1.base| v_prenex_35))) (let ((.cse1 (select (select .cse7 |c_ULTIMATE.start_main_~user~0#1.base|) .cse5))) (let ((.cse6 (store .cse7 .cse1 v_prenex_40))) (let ((.cse2 (select (select .cse6 |c_ULTIMATE.start_main_~user~0#1.base|) .cse5))) (let ((.cse4 (store .cse6 .cse2 v_prenex_37))) (let ((.cse3 (select (select .cse4 |c_ULTIMATE.start_main_~user~0#1.base|) .cse5))) (store (store (store (store (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem34#1.base| v_prenex_32) .cse1 v_prenex_39) .cse2 v_prenex_36) .cse3 v_prenex_33) (select (select (store .cse4 .cse3 v_prenex_34) |c_ULTIMATE.start_main_~user~0#1.base|) .cse5) v_prenex_41))))))) |c_ULTIMATE.start_main_~user~0#1.base|) .cse5))) (bvule .cse0 (bvadd (_ bv4 32) .cse0)))) (forall ((v_ArrVal_10076 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_9981 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_9980 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_10075 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_9984 (_ BitVec 32)) (v_ArrVal_9979 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_9978 (Array (_ BitVec 32) (_ BitVec 32))) (|v_ULTIMATE.start_main_#t~malloc41#1.base_8| (_ BitVec 32)) (v_ArrVal_9977 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_9976 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_9983 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_9982 (Array (_ BitVec 32) (_ BitVec 32)))) (or (let ((.cse15 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem34#1.base| v_ArrVal_10075))) (let ((.cse8 (select (select .cse15 |c_ULTIMATE.start_main_~user~0#1.base|) .cse5))) (let ((.cse14 (store .cse15 .cse8 v_ArrVal_9976))) (let ((.cse9 (select (select .cse14 |c_ULTIMATE.start_main_~user~0#1.base|) .cse5))) (let ((.cse13 (store .cse14 .cse9 v_ArrVal_9978))) (let ((.cse10 (select (select .cse13 |c_ULTIMATE.start_main_~user~0#1.base|) .cse5))) (let ((.cse12 (store .cse13 .cse10 v_ArrVal_9980))) (let ((.cse11 (select (select .cse12 |c_ULTIMATE.start_main_~user~0#1.base|) .cse5))) (bvule (bvadd (select (select (store (store (store (store (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_#t~mem34#1.base| v_ArrVal_10076) .cse8 v_ArrVal_9977) .cse9 v_ArrVal_9979) .cse10 v_ArrVal_9981) .cse11 v_ArrVal_9982) |c_ULTIMATE.start_main_~user~0#1.base|) .cse5) (_ bv4 32)) (select (store |c_#length| |v_ULTIMATE.start_main_#t~malloc41#1.base_8| v_ArrVal_9984) (select (select (store .cse12 .cse11 v_ArrVal_9983) |c_ULTIMATE.start_main_~user~0#1.base|) .cse5))))))))))) (= |c_ULTIMATE.start_main_#t~mem34#1.base| |v_ULTIMATE.start_main_#t~malloc41#1.base_8|))))) is different from false [2024-11-28 05:13:00,174 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 05:13:00,174 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1590683690] [2024-11-28 05:13:00,174 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1590683690] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 05:13:00,174 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [2142300654] [2024-11-28 05:13:00,174 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:13:00,174 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-28 05:13:00,174 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e873d2ae-f983-47fb-8d96-6a2fc4d3444a/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 [2024-11-28 05:13:00,176 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e873d2ae-f983-47fb-8d96-6a2fc4d3444a/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-28 05:13:00,178 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e873d2ae-f983-47fb-8d96-6a2fc4d3444a/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (39)] Waiting until timeout for monitored process