./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/busybox-1.22.0/echo-1.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version e7bb482b Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44df7876-f3a8-4ace-9fa3-5b5575df1734/bin/uautomizer-verify-WvqO1wxjHP/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44df7876-f3a8-4ace-9fa3-5b5575df1734/bin/uautomizer-verify-WvqO1wxjHP/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44df7876-f3a8-4ace-9fa3-5b5575df1734/bin/uautomizer-verify-WvqO1wxjHP/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44df7876-f3a8-4ace-9fa3-5b5575df1734/bin/uautomizer-verify-WvqO1wxjHP/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/busybox-1.22.0/echo-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44df7876-f3a8-4ace-9fa3-5b5575df1734/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-DerefFreeMemtrack-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44df7876-f3a8-4ace-9fa3-5b5575df1734/bin/uautomizer-verify-WvqO1wxjHP --witnessprinter.witness.filename witness.graphml --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 64bit --witnessprinter.graph.data.programhash 7358b2dc480e91987625c19ffeadfa203dcfde2b2c6c164270230269682769ca --- Real Ultimate output --- This is Ultimate 0.2.3-dev-e7bb482 [2023-11-06 22:00:40,968 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-06 22:00:41,084 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44df7876-f3a8-4ace-9fa3-5b5575df1734/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-DerefFreeMemtrack-64bit-Automizer_Default.epf [2023-11-06 22:00:41,093 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-06 22:00:41,094 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-06 22:00:41,160 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-06 22:00:41,161 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-06 22:00:41,161 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-06 22:00:41,162 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-06 22:00:41,163 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-06 22:00:41,164 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-06 22:00:41,165 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-06 22:00:41,165 INFO L153 SettingsManager]: * Use SBE=true [2023-11-06 22:00:41,166 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-06 22:00:41,166 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-06 22:00:41,167 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-06 22:00:41,168 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-06 22:00:41,168 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-06 22:00:41,169 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-06 22:00:41,169 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-06 22:00:41,170 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-06 22:00:41,170 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-06 22:00:41,171 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-06 22:00:41,171 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-06 22:00:41,172 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-06 22:00:41,172 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-06 22:00:41,173 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 22:00:41,173 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-06 22:00:41,174 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-06 22:00:41,174 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-06 22:00:41,174 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-06 22:00:41,175 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-06 22:00:41,175 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-06 22:00:41,175 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-06 22:00:41,176 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-06 22:00:41,176 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44df7876-f3a8-4ace-9fa3-5b5575df1734/bin/uautomizer-verify-WvqO1wxjHP/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44df7876-f3a8-4ace-9fa3-5b5575df1734/bin/uautomizer-verify-WvqO1wxjHP Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7358b2dc480e91987625c19ffeadfa203dcfde2b2c6c164270230269682769ca [2023-11-06 22:00:41,550 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-06 22:00:41,593 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-06 22:00:41,596 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-06 22:00:41,598 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-06 22:00:41,599 INFO L274 PluginConnector]: CDTParser initialized [2023-11-06 22:00:41,601 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44df7876-f3a8-4ace-9fa3-5b5575df1734/bin/uautomizer-verify-WvqO1wxjHP/../../sv-benchmarks/c/busybox-1.22.0/echo-1.i [2023-11-06 22:00:44,763 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-06 22:00:45,348 INFO L384 CDTParser]: Found 1 translation units. [2023-11-06 22:00:45,349 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44df7876-f3a8-4ace-9fa3-5b5575df1734/sv-benchmarks/c/busybox-1.22.0/echo-1.i [2023-11-06 22:00:45,383 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44df7876-f3a8-4ace-9fa3-5b5575df1734/bin/uautomizer-verify-WvqO1wxjHP/data/e06514895/86f14e26dec243269acc4221cd12a1ce/FLAG94e0fde41 [2023-11-06 22:00:45,400 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44df7876-f3a8-4ace-9fa3-5b5575df1734/bin/uautomizer-verify-WvqO1wxjHP/data/e06514895/86f14e26dec243269acc4221cd12a1ce [2023-11-06 22:00:45,403 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-06 22:00:45,405 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-06 22:00:45,407 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-06 22:00:45,407 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-06 22:00:45,413 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-06 22:00:45,414 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:00:45" (1/1) ... [2023-11-06 22:00:45,416 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2ebbecd5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:00:45, skipping insertion in model container [2023-11-06 22:00:45,416 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:00:45" (1/1) ... [2023-11-06 22:00:45,498 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 22:00:47,163 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:00:47,217 ERROR L324 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types of different sizes while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2023-11-06 22:00:47,218 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@1fdd6261 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:00:47, skipping insertion in model container [2023-11-06 22:00:47,219 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-06 22:00:47,219 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2023-11-06 22:00:47,221 INFO L158 Benchmark]: Toolchain (without parser) took 1815.38ms. Allocated memory is still 169.9MB. Free memory was 134.1MB in the beginning and 105.2MB in the end (delta: 28.9MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. [2023-11-06 22:00:47,222 INFO L158 Benchmark]: CDTParser took 0.34ms. Allocated memory is still 125.8MB. Free memory is still 98.7MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-06 22:00:47,223 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1812.34ms. Allocated memory is still 169.9MB. Free memory was 134.1MB in the beginning and 105.2MB in the end (delta: 28.9MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. [2023-11-06 22:00:47,225 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34ms. Allocated memory is still 125.8MB. Free memory is still 98.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1812.34ms. Allocated memory is still 169.9MB. Free memory was 134.1MB in the beginning and 105.2MB in the end (delta: 28.9MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 2538]: Unsupported Syntax Found a cast between two array/pointer types of different sizes while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44df7876-f3a8-4ace-9fa3-5b5575df1734/bin/uautomizer-verify-WvqO1wxjHP/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44df7876-f3a8-4ace-9fa3-5b5575df1734/bin/uautomizer-verify-WvqO1wxjHP/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44df7876-f3a8-4ace-9fa3-5b5575df1734/bin/uautomizer-verify-WvqO1wxjHP/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44df7876-f3a8-4ace-9fa3-5b5575df1734/bin/uautomizer-verify-WvqO1wxjHP/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/busybox-1.22.0/echo-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44df7876-f3a8-4ace-9fa3-5b5575df1734/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-DerefFreeMemtrack-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44df7876-f3a8-4ace-9fa3-5b5575df1734/bin/uautomizer-verify-WvqO1wxjHP --witnessprinter.witness.filename witness.graphml --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 64bit --witnessprinter.graph.data.programhash 7358b2dc480e91987625c19ffeadfa203dcfde2b2c6c164270230269682769ca --- Real Ultimate output --- This is Ultimate 0.2.3-dev-e7bb482 [2023-11-06 22:00:50,166 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-06 22:00:50,320 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44df7876-f3a8-4ace-9fa3-5b5575df1734/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-DerefFreeMemtrack-64bit-Automizer_Bitvector.epf [2023-11-06 22:00:50,329 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-06 22:00:50,330 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-06 22:00:50,376 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-06 22:00:50,377 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-06 22:00:50,378 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-06 22:00:50,379 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-06 22:00:50,385 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-06 22:00:50,386 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-06 22:00:50,386 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-06 22:00:50,387 INFO L153 SettingsManager]: * Use SBE=true [2023-11-06 22:00:50,389 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-06 22:00:50,390 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-06 22:00:50,390 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-06 22:00:50,390 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-06 22:00:50,391 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-06 22:00:50,391 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-06 22:00:50,393 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-06 22:00:50,393 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-06 22:00:50,394 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-06 22:00:50,394 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-06 22:00:50,395 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-06 22:00:50,395 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-06 22:00:50,396 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-06 22:00:50,397 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-06 22:00:50,397 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-06 22:00:50,398 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 22:00:50,399 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-06 22:00:50,400 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-06 22:00:50,400 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-11-06 22:00:50,401 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-06 22:00:50,401 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-06 22:00:50,402 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-06 22:00:50,402 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-06 22:00:50,402 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-11-06 22:00:50,403 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-06 22:00:50,403 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44df7876-f3a8-4ace-9fa3-5b5575df1734/bin/uautomizer-verify-WvqO1wxjHP/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44df7876-f3a8-4ace-9fa3-5b5575df1734/bin/uautomizer-verify-WvqO1wxjHP Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7358b2dc480e91987625c19ffeadfa203dcfde2b2c6c164270230269682769ca [2023-11-06 22:00:50,918 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-06 22:00:50,959 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-06 22:00:50,963 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-06 22:00:50,965 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-06 22:00:50,966 INFO L274 PluginConnector]: CDTParser initialized [2023-11-06 22:00:50,967 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44df7876-f3a8-4ace-9fa3-5b5575df1734/bin/uautomizer-verify-WvqO1wxjHP/../../sv-benchmarks/c/busybox-1.22.0/echo-1.i [2023-11-06 22:00:54,248 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-06 22:00:54,818 INFO L384 CDTParser]: Found 1 translation units. [2023-11-06 22:00:54,819 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44df7876-f3a8-4ace-9fa3-5b5575df1734/sv-benchmarks/c/busybox-1.22.0/echo-1.i [2023-11-06 22:00:54,859 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44df7876-f3a8-4ace-9fa3-5b5575df1734/bin/uautomizer-verify-WvqO1wxjHP/data/3b9b4bfab/5a11c49a0d774818be5d234c69427b13/FLAG1f308ec57 [2023-11-06 22:00:54,884 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44df7876-f3a8-4ace-9fa3-5b5575df1734/bin/uautomizer-verify-WvqO1wxjHP/data/3b9b4bfab/5a11c49a0d774818be5d234c69427b13 [2023-11-06 22:00:54,891 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-06 22:00:54,894 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-06 22:00:54,898 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-06 22:00:54,898 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-06 22:00:54,904 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-06 22:00:54,905 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:00:54" (1/1) ... [2023-11-06 22:00:54,907 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3e3f5253 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:00:54, skipping insertion in model container [2023-11-06 22:00:54,907 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:00:54" (1/1) ... [2023-11-06 22:00:55,020 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 22:00:56,486 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:00:56,522 INFO L199 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2023-11-06 22:00:56,553 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 22:00:56,771 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:00:56,794 INFO L202 MainTranslator]: Completed pre-run [2023-11-06 22:00:56,957 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:00:57,177 WARN L672 CHandler]: The function fflush is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 22:00:57,177 WARN L672 CHandler]: The function strerror is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 22:00:57,178 WARN L672 CHandler]: The function longjmp is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 22:00:57,186 INFO L206 MainTranslator]: Completed translation [2023-11-06 22:00:57,187 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:00:57 WrapperNode [2023-11-06 22:00:57,187 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-06 22:00:57,189 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-06 22:00:57,189 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-06 22:00:57,189 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-06 22:00:57,197 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:00:57" (1/1) ... [2023-11-06 22:00:57,276 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:00:57" (1/1) ... [2023-11-06 22:00:57,361 INFO L138 Inliner]: procedures = 613, calls = 214, calls flagged for inlining = 17, calls inlined = 15, statements flattened = 725 [2023-11-06 22:00:57,362 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-06 22:00:57,363 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-06 22:00:57,363 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-06 22:00:57,363 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-06 22:00:57,374 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:00:57" (1/1) ... [2023-11-06 22:00:57,375 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:00:57" (1/1) ... [2023-11-06 22:00:57,393 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:00:57" (1/1) ... [2023-11-06 22:00:57,394 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:00:57" (1/1) ... [2023-11-06 22:00:57,442 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:00:57" (1/1) ... [2023-11-06 22:00:57,453 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:00:57" (1/1) ... [2023-11-06 22:00:57,468 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:00:57" (1/1) ... [2023-11-06 22:00:57,477 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:00:57" (1/1) ... [2023-11-06 22:00:57,493 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-06 22:00:57,494 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-06 22:00:57,494 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-06 22:00:57,495 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-06 22:00:57,496 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:00:57" (1/1) ... [2023-11-06 22:00:57,504 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 22:00:57,517 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44df7876-f3a8-4ace-9fa3-5b5575df1734/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:00:57,534 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44df7876-f3a8-4ace-9fa3-5b5575df1734/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-06 22:00:57,567 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44df7876-f3a8-4ace-9fa3-5b5575df1734/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-06 22:00:57,584 INFO L130 BoogieDeclarations]: Found specification of procedure strerror [2023-11-06 22:00:57,585 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-06 22:00:57,585 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-06 22:00:57,585 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2023-11-06 22:00:57,585 INFO L130 BoogieDeclarations]: Found specification of procedure bb_verror_msg [2023-11-06 22:00:57,585 INFO L138 BoogieDeclarations]: Found implementation of procedure bb_verror_msg [2023-11-06 22:00:57,586 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-06 22:00:57,586 INFO L130 BoogieDeclarations]: Found specification of procedure fflush [2023-11-06 22:00:57,586 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-06 22:00:57,586 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-06 22:00:57,586 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2023-11-06 22:00:57,588 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2023-11-06 22:00:57,588 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2023-11-06 22:00:57,589 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2023-11-06 22:00:57,589 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-06 22:00:57,589 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-06 22:00:57,589 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2023-11-06 22:00:57,589 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy [2023-11-06 22:00:57,590 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy [2023-11-06 22:00:57,590 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2023-11-06 22:00:57,590 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-11-06 22:00:57,591 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-11-06 22:00:57,592 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-06 22:00:57,592 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-06 22:00:57,592 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-06 22:00:57,592 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-06 22:00:57,592 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2023-11-06 22:00:57,593 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2023-11-06 22:00:57,594 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-06 22:00:57,594 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2023-11-06 22:00:57,594 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2023-11-06 22:00:57,595 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2023-11-06 22:00:57,595 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2023-11-06 22:00:57,595 INFO L130 BoogieDeclarations]: Found specification of procedure full_write [2023-11-06 22:00:57,596 INFO L138 BoogieDeclarations]: Found implementation of procedure full_write [2023-11-06 22:00:58,191 INFO L236 CfgBuilder]: Building ICFG [2023-11-06 22:00:58,193 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-06 22:01:04,044 INFO L277 CfgBuilder]: Performing block encoding [2023-11-06 22:01:04,067 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-06 22:01:04,067 INFO L302 CfgBuilder]: Removed 16 assume(true) statements. [2023-11-06 22:01:04,071 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:01:04 BoogieIcfgContainer [2023-11-06 22:01:04,072 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-06 22:01:04,076 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-06 22:01:04,076 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-06 22:01:04,080 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-06 22:01:04,081 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 10:00:54" (1/3) ... [2023-11-06 22:01:04,082 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@11d7eecf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:01:04, skipping insertion in model container [2023-11-06 22:01:04,082 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:00:57" (2/3) ... [2023-11-06 22:01:04,084 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@11d7eecf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:01:04, skipping insertion in model container [2023-11-06 22:01:04,085 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:01:04" (3/3) ... [2023-11-06 22:01:04,086 INFO L112 eAbstractionObserver]: Analyzing ICFG echo-1.i [2023-11-06 22:01:04,110 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-06 22:01:04,111 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 185 error locations. [2023-11-06 22:01:04,203 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-06 22:01:04,215 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@1b6722f7, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-06 22:01:04,215 INFO L358 AbstractCegarLoop]: Starting to check reachability of 185 error locations. [2023-11-06 22:01:04,226 INFO L276 IsEmpty]: Start isEmpty. Operand has 470 states, 270 states have (on average 1.9777777777777779) internal successors, (534), 455 states have internal predecessors, (534), 10 states have call successors, (10), 4 states have call predecessors, (10), 4 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2023-11-06 22:01:04,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2023-11-06 22:01:04,235 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:01:04,236 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2023-11-06 22:01:04,236 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [#Ultimate.C_strcpyErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, #Ultimate.C_strcpyErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, #Ultimate.C_strcpyErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE (and 182 more)] === [2023-11-06 22:01:04,247 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:01:04,248 INFO L85 PathProgramCache]: Analyzing trace with hash 345631, now seen corresponding path program 1 times [2023-11-06 22:01:04,268 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 22:01:04,269 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [853301248] [2023-11-06 22:01:04,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:01:04,269 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 22:01:04,270 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44df7876-f3a8-4ace-9fa3-5b5575df1734/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 22:01:04,275 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44df7876-f3a8-4ace-9fa3-5b5575df1734/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-06 22:01:04,289 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44df7876-f3a8-4ace-9fa3-5b5575df1734/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-11-06 22:01:04,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:01:04,656 INFO L262 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-06 22:01:04,661 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:01:04,772 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2023-11-06 22:01:04,804 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:01:04,804 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:01:04,805 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 22:01:04,806 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [853301248] [2023-11-06 22:01:04,806 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [853301248] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:01:04,807 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:01:04,807 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 22:01:04,809 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [603937004] [2023-11-06 22:01:04,810 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:01:04,816 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:01:04,818 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 22:01:04,856 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:01:04,857 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:01:04,861 INFO L87 Difference]: Start difference. First operand has 470 states, 270 states have (on average 1.9777777777777779) internal successors, (534), 455 states have internal predecessors, (534), 10 states have call successors, (10), 4 states have call predecessors, (10), 4 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) 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) [2023-11-06 22:01:06,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:01:06,789 INFO L93 Difference]: Finished difference Result 577 states and 656 transitions. [2023-11-06 22:01:06,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:01:06,794 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 [2023-11-06 22:01:06,794 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:01:06,812 INFO L225 Difference]: With dead ends: 577 [2023-11-06 22:01:06,813 INFO L226 Difference]: Without dead ends: 575 [2023-11-06 22:01:06,814 INFO L412 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 [2023-11-06 22:01:06,818 INFO L413 NwaCegarLoop]: 435 mSDtfsCounter, 231 mSDsluCounter, 258 mSDsCounter, 0 mSdLazyCounter, 245 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 233 SdHoareTripleChecker+Valid, 693 SdHoareTripleChecker+Invalid, 251 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 245 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2023-11-06 22:01:06,819 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [233 Valid, 693 Invalid, 251 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 245 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2023-11-06 22:01:06,841 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 575 states. [2023-11-06 22:01:06,914 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 575 to 463. [2023-11-06 22:01:06,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 463 states, 268 states have (on average 1.873134328358209) internal successors, (502), 448 states have internal predecessors, (502), 10 states have call successors, (10), 4 states have call predecessors, (10), 4 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2023-11-06 22:01:06,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 463 states to 463 states and 522 transitions. [2023-11-06 22:01:06,923 INFO L78 Accepts]: Start accepts. Automaton has 463 states and 522 transitions. Word has length 3 [2023-11-06 22:01:06,923 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:01:06,924 INFO L495 AbstractCegarLoop]: Abstraction has 463 states and 522 transitions. [2023-11-06 22:01:06,924 INFO L496 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) [2023-11-06 22:01:06,924 INFO L276 IsEmpty]: Start isEmpty. Operand 463 states and 522 transitions. [2023-11-06 22:01:06,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2023-11-06 22:01:06,925 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:01:06,925 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2023-11-06 22:01:06,936 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44df7876-f3a8-4ace-9fa3-5b5575df1734/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2023-11-06 22:01:07,125 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44df7876-f3a8-4ace-9fa3-5b5575df1734/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 22:01:07,126 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [#Ultimate.C_strcpyErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, #Ultimate.C_strcpyErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, #Ultimate.C_strcpyErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE (and 182 more)] === [2023-11-06 22:01:07,126 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:01:07,126 INFO L85 PathProgramCache]: Analyzing trace with hash 345632, now seen corresponding path program 1 times [2023-11-06 22:01:07,127 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 22:01:07,128 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1850337847] [2023-11-06 22:01:07,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:01:07,128 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 22:01:07,128 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44df7876-f3a8-4ace-9fa3-5b5575df1734/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 22:01:07,130 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44df7876-f3a8-4ace-9fa3-5b5575df1734/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-06 22:01:07,135 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44df7876-f3a8-4ace-9fa3-5b5575df1734/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-11-06 22:01:07,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:01:07,425 INFO L262 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-06 22:01:07,427 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:01:07,442 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-11-06 22:01:07,465 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:01:07,465 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:01:07,465 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 22:01:07,466 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1850337847] [2023-11-06 22:01:07,466 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1850337847] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:01:07,466 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:01:07,466 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 22:01:07,467 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1349331190] [2023-11-06 22:01:07,467 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:01:07,468 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:01:07,469 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 22:01:07,469 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:01:07,470 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:01:07,473 INFO L87 Difference]: Start difference. First operand 463 states and 522 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) [2023-11-06 22:01:09,972 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:01:09,974 INFO L93 Difference]: Finished difference Result 462 states and 521 transitions. [2023-11-06 22:01:09,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:01:09,980 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 [2023-11-06 22:01:09,981 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:01:09,983 INFO L225 Difference]: With dead ends: 462 [2023-11-06 22:01:09,983 INFO L226 Difference]: Without dead ends: 462 [2023-11-06 22:01:09,984 INFO L412 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 [2023-11-06 22:01:09,985 INFO L413 NwaCegarLoop]: 514 mSDtfsCounter, 13 mSDsluCounter, 334 mSDsCounter, 0 mSdLazyCounter, 179 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 848 SdHoareTripleChecker+Invalid, 179 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 179 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2023-11-06 22:01:09,986 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 848 Invalid, 179 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 179 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2023-11-06 22:01:09,988 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 462 states. [2023-11-06 22:01:10,007 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 462 to 462. [2023-11-06 22:01:10,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 462 states, 268 states have (on average 1.8694029850746268) internal successors, (501), 447 states have internal predecessors, (501), 10 states have call successors, (10), 4 states have call predecessors, (10), 4 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2023-11-06 22:01:10,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 462 states to 462 states and 521 transitions. [2023-11-06 22:01:10,012 INFO L78 Accepts]: Start accepts. Automaton has 462 states and 521 transitions. Word has length 3 [2023-11-06 22:01:10,012 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:01:10,013 INFO L495 AbstractCegarLoop]: Abstraction has 462 states and 521 transitions. [2023-11-06 22:01:10,013 INFO L496 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) [2023-11-06 22:01:10,013 INFO L276 IsEmpty]: Start isEmpty. Operand 462 states and 521 transitions. [2023-11-06 22:01:10,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-06 22:01:10,014 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:01:10,014 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2023-11-06 22:01:10,031 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44df7876-f3a8-4ace-9fa3-5b5575df1734/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2023-11-06 22:01:10,231 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44df7876-f3a8-4ace-9fa3-5b5575df1734/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 22:01:10,231 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [#Ultimate.C_strcpyErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, #Ultimate.C_strcpyErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, #Ultimate.C_strcpyErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE (and 182 more)] === [2023-11-06 22:01:10,232 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:01:10,232 INFO L85 PathProgramCache]: Analyzing trace with hash 1707050729, now seen corresponding path program 1 times [2023-11-06 22:01:10,233 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 22:01:10,234 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [915993946] [2023-11-06 22:01:10,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:01:10,234 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 22:01:10,234 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44df7876-f3a8-4ace-9fa3-5b5575df1734/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 22:01:10,236 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44df7876-f3a8-4ace-9fa3-5b5575df1734/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-06 22:01:10,240 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44df7876-f3a8-4ace-9fa3-5b5575df1734/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2023-11-06 22:01:10,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:01:10,518 INFO L262 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-06 22:01:10,519 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:01:10,536 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-11-06 22:01:10,672 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:01:10,672 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:01:10,673 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 22:01:10,673 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [915993946] [2023-11-06 22:01:10,673 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [915993946] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:01:10,673 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:01:10,673 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-06 22:01:10,674 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [138042182] [2023-11-06 22:01:10,674 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:01:10,674 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-06 22:01:10,674 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 22:01:10,675 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-06 22:01:10,675 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-06 22:01:10,675 INFO L87 Difference]: Start difference. First operand 462 states and 521 transitions. Second operand has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:01:13,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:01:13,179 INFO L93 Difference]: Finished difference Result 466 states and 525 transitions. [2023-11-06 22:01:13,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-06 22:01:13,181 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2023-11-06 22:01:13,181 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:01:13,183 INFO L225 Difference]: With dead ends: 466 [2023-11-06 22:01:13,184 INFO L226 Difference]: Without dead ends: 466 [2023-11-06 22:01:13,184 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-06 22:01:13,185 INFO L413 NwaCegarLoop]: 512 mSDtfsCounter, 16 mSDsluCounter, 337 mSDsCounter, 0 mSdLazyCounter, 192 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 849 SdHoareTripleChecker+Invalid, 193 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 192 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2023-11-06 22:01:13,186 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 849 Invalid, 193 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 192 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2023-11-06 22:01:13,188 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 466 states. [2023-11-06 22:01:13,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 466 to 464. [2023-11-06 22:01:13,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 464 states, 270 states have (on average 1.862962962962963) internal successors, (503), 449 states have internal predecessors, (503), 10 states have call successors, (10), 4 states have call predecessors, (10), 4 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2023-11-06 22:01:13,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 464 states to 464 states and 523 transitions. [2023-11-06 22:01:13,204 INFO L78 Accepts]: Start accepts. Automaton has 464 states and 523 transitions. Word has length 6 [2023-11-06 22:01:13,204 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:01:13,205 INFO L495 AbstractCegarLoop]: Abstraction has 464 states and 523 transitions. [2023-11-06 22:01:13,205 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:01:13,205 INFO L276 IsEmpty]: Start isEmpty. Operand 464 states and 523 transitions. [2023-11-06 22:01:13,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-11-06 22:01:13,206 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:01:13,206 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:01:13,219 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44df7876-f3a8-4ace-9fa3-5b5575df1734/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Ended with exit code 0 [2023-11-06 22:01:13,416 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44df7876-f3a8-4ace-9fa3-5b5575df1734/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 22:01:13,417 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [#Ultimate.C_strcpyErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, #Ultimate.C_strcpyErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, #Ultimate.C_strcpyErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE (and 182 more)] === [2023-11-06 22:01:13,417 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:01:13,417 INFO L85 PathProgramCache]: Analyzing trace with hash -605972884, now seen corresponding path program 1 times [2023-11-06 22:01:13,418 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 22:01:13,418 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1455302199] [2023-11-06 22:01:13,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:01:13,419 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 22:01:13,419 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44df7876-f3a8-4ace-9fa3-5b5575df1734/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 22:01:13,420 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44df7876-f3a8-4ace-9fa3-5b5575df1734/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-06 22:01:13,424 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44df7876-f3a8-4ace-9fa3-5b5575df1734/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2023-11-06 22:01:13,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:01:13,686 INFO L262 TraceCheckSpWp]: Trace formula consists of 136 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-06 22:01:13,687 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:01:13,702 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-11-06 22:01:13,920 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:01:13,921 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 22:01:14,791 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:01:14,793 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 22:01:14,793 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1455302199] [2023-11-06 22:01:14,794 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1455302199] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-06 22:01:14,794 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-06 22:01:14,794 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2023-11-06 22:01:14,794 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [131131032] [2023-11-06 22:01:14,794 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-06 22:01:14,795 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-06 22:01:14,795 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 22:01:14,796 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-06 22:01:14,796 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-11-06 22:01:14,796 INFO L87 Difference]: Start difference. First operand 464 states and 523 transitions. Second operand has 8 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 8 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) [2023-11-06 22:01:28,475 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:01:28,475 INFO L93 Difference]: Finished difference Result 470 states and 529 transitions. [2023-11-06 22:01:28,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-06 22:01:28,477 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 8 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 10 [2023-11-06 22:01:28,477 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:01:28,479 INFO L225 Difference]: With dead ends: 470 [2023-11-06 22:01:28,480 INFO L226 Difference]: Without dead ends: 470 [2023-11-06 22:01:28,480 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2023-11-06 22:01:28,481 INFO L413 NwaCegarLoop]: 512 mSDtfsCounter, 31 mSDsluCounter, 1008 mSDsCounter, 0 mSdLazyCounter, 550 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 1520 SdHoareTripleChecker+Invalid, 555 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 550 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.4s IncrementalHoareTripleChecker+Time [2023-11-06 22:01:28,482 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 1520 Invalid, 555 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 550 Invalid, 0 Unknown, 0 Unchecked, 13.4s Time] [2023-11-06 22:01:28,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 470 states. [2023-11-06 22:01:28,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 470 to 470. [2023-11-06 22:01:28,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 470 states, 277 states have (on average 1.8375451263537905) internal successors, (509), 455 states have internal predecessors, (509), 10 states have call successors, (10), 4 states have call predecessors, (10), 4 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2023-11-06 22:01:28,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 470 states to 470 states and 529 transitions. [2023-11-06 22:01:28,497 INFO L78 Accepts]: Start accepts. Automaton has 470 states and 529 transitions. Word has length 10 [2023-11-06 22:01:28,498 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:01:28,498 INFO L495 AbstractCegarLoop]: Abstraction has 470 states and 529 transitions. [2023-11-06 22:01:28,498 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 8 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) [2023-11-06 22:01:28,498 INFO L276 IsEmpty]: Start isEmpty. Operand 470 states and 529 transitions. [2023-11-06 22:01:28,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2023-11-06 22:01:28,499 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:01:28,499 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:01:28,515 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44df7876-f3a8-4ace-9fa3-5b5575df1734/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2023-11-06 22:01:28,713 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44df7876-f3a8-4ace-9fa3-5b5575df1734/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 22:01:28,714 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [#Ultimate.C_strcpyErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, #Ultimate.C_strcpyErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, #Ultimate.C_strcpyErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE (and 182 more)] === [2023-11-06 22:01:28,714 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:01:28,714 INFO L85 PathProgramCache]: Analyzing trace with hash -956362755, now seen corresponding path program 1 times [2023-11-06 22:01:28,715 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 22:01:28,716 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1565434045] [2023-11-06 22:01:28,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:01:28,716 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 22:01:28,716 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44df7876-f3a8-4ace-9fa3-5b5575df1734/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 22:01:28,719 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44df7876-f3a8-4ace-9fa3-5b5575df1734/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-06 22:01:28,723 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44df7876-f3a8-4ace-9fa3-5b5575df1734/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2023-11-06 22:01:29,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:01:29,022 INFO L262 TraceCheckSpWp]: Trace formula consists of 170 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-06 22:01:29,024 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:01:29,113 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:01:29,113 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 22:01:29,272 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:01:29,272 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 22:01:29,273 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1565434045] [2023-11-06 22:01:29,273 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1565434045] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-06 22:01:29,273 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-06 22:01:29,273 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2023-11-06 22:01:29,274 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2068960322] [2023-11-06 22:01:29,274 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-06 22:01:29,275 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-06 22:01:29,275 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 22:01:29,275 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-06 22:01:29,276 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2023-11-06 22:01:29,276 INFO L87 Difference]: Start difference. First operand 470 states and 529 transitions. Second operand has 10 states, 10 states have (on average 3.3) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:01:29,656 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:01:29,656 INFO L93 Difference]: Finished difference Result 490 states and 549 transitions. [2023-11-06 22:01:29,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-06 22:01:29,657 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 3.3) internal successors, (33), 10 states have internal predecessors, (33), 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 [2023-11-06 22:01:29,657 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:01:29,660 INFO L225 Difference]: With dead ends: 490 [2023-11-06 22:01:29,661 INFO L226 Difference]: Without dead ends: 490 [2023-11-06 22:01:29,661 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=63, Invalid=93, Unknown=0, NotChecked=0, Total=156 [2023-11-06 22:01:29,662 INFO L413 NwaCegarLoop]: 520 mSDtfsCounter, 18 mSDsluCounter, 3087 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 3607 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-06 22:01:29,662 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 3607 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-06 22:01:29,664 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 490 states. [2023-11-06 22:01:29,674 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 490 to 490. [2023-11-06 22:01:29,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 490 states, 297 states have (on average 1.7811447811447811) internal successors, (529), 475 states have internal predecessors, (529), 10 states have call successors, (10), 4 states have call predecessors, (10), 4 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2023-11-06 22:01:29,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 490 states to 490 states and 549 transitions. [2023-11-06 22:01:29,678 INFO L78 Accepts]: Start accepts. Automaton has 490 states and 549 transitions. Word has length 19 [2023-11-06 22:01:29,679 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:01:29,679 INFO L495 AbstractCegarLoop]: Abstraction has 490 states and 549 transitions. [2023-11-06 22:01:29,679 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 3.3) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:01:29,679 INFO L276 IsEmpty]: Start isEmpty. Operand 490 states and 549 transitions. [2023-11-06 22:01:29,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2023-11-06 22:01:29,680 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:01:29,681 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:01:29,694 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44df7876-f3a8-4ace-9fa3-5b5575df1734/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2023-11-06 22:01:29,888 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44df7876-f3a8-4ace-9fa3-5b5575df1734/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 22:01:29,889 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [#Ultimate.C_strcpyErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, #Ultimate.C_strcpyErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, #Ultimate.C_strcpyErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE (and 182 more)] === [2023-11-06 22:01:29,889 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:01:29,889 INFO L85 PathProgramCache]: Analyzing trace with hash 765878734, now seen corresponding path program 2 times [2023-11-06 22:01:29,890 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 22:01:29,890 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1114715485] [2023-11-06 22:01:29,890 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-06 22:01:29,890 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 22:01:29,890 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44df7876-f3a8-4ace-9fa3-5b5575df1734/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 22:01:29,892 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44df7876-f3a8-4ace-9fa3-5b5575df1734/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-06 22:01:29,897 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44df7876-f3a8-4ace-9fa3-5b5575df1734/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2023-11-06 22:01:30,187 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-11-06 22:01:30,188 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-06 22:01:30,194 INFO L262 TraceCheckSpWp]: Trace formula consists of 122 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-06 22:01:30,197 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:01:30,276 INFO L322 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2023-11-06 22:01:30,276 INFO L351 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 14 treesize of output 20 [2023-11-06 22:01:30,733 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked. [2023-11-06 22:01:30,734 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:01:30,734 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 22:01:30,734 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1114715485] [2023-11-06 22:01:30,734 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1114715485] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:01:30,734 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:01:30,734 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-06 22:01:30,735 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1615584840] [2023-11-06 22:01:30,735 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:01:30,735 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:01:30,735 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 22:01:30,736 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:01:30,736 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:01:30,736 INFO L87 Difference]: Start difference. First operand 490 states and 549 transitions. Second operand has 3 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:01:32,958 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:01:32,959 INFO L93 Difference]: Finished difference Result 793 states and 896 transitions. [2023-11-06 22:01:32,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:01:32,960 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2023-11-06 22:01:32,960 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:01:32,965 INFO L225 Difference]: With dead ends: 793 [2023-11-06 22:01:32,966 INFO L226 Difference]: Without dead ends: 793 [2023-11-06 22:01:32,966 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 36 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:01:32,967 INFO L413 NwaCegarLoop]: 496 mSDtfsCounter, 434 mSDsluCounter, 260 mSDsCounter, 0 mSdLazyCounter, 318 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 434 SdHoareTripleChecker+Valid, 756 SdHoareTripleChecker+Invalid, 326 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 318 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2023-11-06 22:01:32,968 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [434 Valid, 756 Invalid, 326 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 318 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2023-11-06 22:01:32,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 793 states. [2023-11-06 22:01:32,990 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 793 to 628. [2023-11-06 22:01:32,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 628 states, 426 states have (on average 1.8145539906103287) internal successors, (773), 604 states have internal predecessors, (773), 17 states have call successors, (17), 8 states have call predecessors, (17), 7 states have return successors, (17), 15 states have call predecessors, (17), 17 states have call successors, (17) [2023-11-06 22:01:32,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 628 states to 628 states and 807 transitions. [2023-11-06 22:01:32,996 INFO L78 Accepts]: Start accepts. Automaton has 628 states and 807 transitions. Word has length 39 [2023-11-06 22:01:32,997 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:01:32,997 INFO L495 AbstractCegarLoop]: Abstraction has 628 states and 807 transitions. [2023-11-06 22:01:32,997 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:01:32,997 INFO L276 IsEmpty]: Start isEmpty. Operand 628 states and 807 transitions. [2023-11-06 22:01:32,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2023-11-06 22:01:32,999 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:01:32,999 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:01:33,021 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44df7876-f3a8-4ace-9fa3-5b5575df1734/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2023-11-06 22:01:33,213 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44df7876-f3a8-4ace-9fa3-5b5575df1734/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 22:01:33,213 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [#Ultimate.C_strcpyErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, #Ultimate.C_strcpyErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, #Ultimate.C_strcpyErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE (and 182 more)] === [2023-11-06 22:01:33,214 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:01:33,214 INFO L85 PathProgramCache]: Analyzing trace with hash 765878735, now seen corresponding path program 1 times [2023-11-06 22:01:33,215 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 22:01:33,215 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1482381916] [2023-11-06 22:01:33,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:01:33,215 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 22:01:33,215 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44df7876-f3a8-4ace-9fa3-5b5575df1734/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 22:01:33,217 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44df7876-f3a8-4ace-9fa3-5b5575df1734/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-06 22:01:33,232 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44df7876-f3a8-4ace-9fa3-5b5575df1734/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2023-11-06 22:01:33,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:01:33,572 INFO L262 TraceCheckSpWp]: Trace formula consists of 250 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-06 22:01:33,575 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:01:33,892 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 0 proven. 120 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:01:33,892 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 22:01:34,467 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 0 proven. 120 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:01:34,467 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 22:01:34,467 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1482381916] [2023-11-06 22:01:34,468 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1482381916] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-06 22:01:34,468 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-06 22:01:34,468 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 20 [2023-11-06 22:01:34,468 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [901404424] [2023-11-06 22:01:34,468 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-06 22:01:34,469 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2023-11-06 22:01:34,469 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 22:01:34,470 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2023-11-06 22:01:34,470 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=290, Unknown=0, NotChecked=0, Total=380 [2023-11-06 22:01:34,470 INFO L87 Difference]: Start difference. First operand 628 states and 807 transitions. Second operand has 20 states, 20 states have (on average 3.65) internal successors, (73), 20 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:01:35,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:01:35,402 INFO L93 Difference]: Finished difference Result 636 states and 815 transitions. [2023-11-06 22:01:35,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-06 22:01:35,403 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 3.65) internal successors, (73), 20 states have internal predecessors, (73), 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 39 [2023-11-06 22:01:35,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:01:35,410 INFO L225 Difference]: With dead ends: 636 [2023-11-06 22:01:35,410 INFO L226 Difference]: Without dead ends: 636 [2023-11-06 22:01:35,411 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=90, Invalid=290, Unknown=0, NotChecked=0, Total=380 [2023-11-06 22:01:35,412 INFO L413 NwaCegarLoop]: 524 mSDtfsCounter, 9 mSDsluCounter, 5180 mSDsCounter, 0 mSdLazyCounter, 276 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 5704 SdHoareTripleChecker+Invalid, 277 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 276 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-11-06 22:01:35,412 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 5704 Invalid, 277 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 276 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-11-06 22:01:35,414 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 636 states. [2023-11-06 22:01:35,431 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 636 to 636. [2023-11-06 22:01:35,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 636 states, 434 states have (on average 1.7995391705069124) internal successors, (781), 612 states have internal predecessors, (781), 17 states have call successors, (17), 8 states have call predecessors, (17), 7 states have return successors, (17), 15 states have call predecessors, (17), 17 states have call successors, (17) [2023-11-06 22:01:35,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 636 states to 636 states and 815 transitions. [2023-11-06 22:01:35,437 INFO L78 Accepts]: Start accepts. Automaton has 636 states and 815 transitions. Word has length 39 [2023-11-06 22:01:35,438 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:01:35,438 INFO L495 AbstractCegarLoop]: Abstraction has 636 states and 815 transitions. [2023-11-06 22:01:35,438 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 3.65) internal successors, (73), 20 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:01:35,438 INFO L276 IsEmpty]: Start isEmpty. Operand 636 states and 815 transitions. [2023-11-06 22:01:35,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2023-11-06 22:01:35,440 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:01:35,440 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:01:35,459 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44df7876-f3a8-4ace-9fa3-5b5575df1734/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2023-11-06 22:01:35,658 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44df7876-f3a8-4ace-9fa3-5b5575df1734/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 22:01:35,659 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [#Ultimate.C_strcpyErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, #Ultimate.C_strcpyErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, #Ultimate.C_strcpyErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE (and 182 more)] === [2023-11-06 22:01:35,659 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:01:35,659 INFO L85 PathProgramCache]: Analyzing trace with hash 1662321929, now seen corresponding path program 2 times [2023-11-06 22:01:35,659 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 22:01:35,660 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2055915400] [2023-11-06 22:01:35,660 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-06 22:01:35,660 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 22:01:35,660 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44df7876-f3a8-4ace-9fa3-5b5575df1734/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 22:01:35,661 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44df7876-f3a8-4ace-9fa3-5b5575df1734/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-06 22:01:35,665 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44df7876-f3a8-4ace-9fa3-5b5575df1734/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2023-11-06 22:01:36,030 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-11-06 22:01:36,030 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-06 22:01:36,038 INFO L262 TraceCheckSpWp]: Trace formula consists of 122 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-06 22:01:36,042 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:01:36,133 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 22:01:36,139 INFO L351 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 [2023-11-06 22:01:36,964 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2023-11-06 22:01:36,964 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:01:36,965 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 22:01:36,965 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2055915400] [2023-11-06 22:01:36,965 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2055915400] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:01:36,965 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:01:36,965 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 22:01:36,965 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [732203119] [2023-11-06 22:01:36,966 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:01:36,966 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-06 22:01:36,966 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 22:01:36,967 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-06 22:01:36,967 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-06 22:01:36,967 INFO L87 Difference]: Start difference. First operand 636 states and 815 transitions. Second operand has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:01:41,587 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:01:41,588 INFO L93 Difference]: Finished difference Result 935 states and 1052 transitions. [2023-11-06 22:01:41,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-06 22:01:41,589 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2023-11-06 22:01:41,589 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:01:41,595 INFO L225 Difference]: With dead ends: 935 [2023-11-06 22:01:41,595 INFO L226 Difference]: Without dead ends: 935 [2023-11-06 22:01:41,595 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-06 22:01:41,596 INFO L413 NwaCegarLoop]: 426 mSDtfsCounter, 992 mSDsluCounter, 365 mSDsCounter, 0 mSdLazyCounter, 450 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 992 SdHoareTripleChecker+Valid, 791 SdHoareTripleChecker+Invalid, 483 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 450 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2023-11-06 22:01:41,597 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [992 Valid, 791 Invalid, 483 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 450 Invalid, 0 Unknown, 0 Unchecked, 4.6s Time] [2023-11-06 22:01:41,599 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 935 states. [2023-11-06 22:01:41,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 935 to 731. [2023-11-06 22:01:41,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 731 states, 525 states have (on average 1.8038095238095238) internal successors, (947), 703 states have internal predecessors, (947), 19 states have call successors, (19), 10 states have call predecessors, (19), 10 states have return successors, (20), 17 states have call predecessors, (20), 19 states have call successors, (20) [2023-11-06 22:01:41,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 731 states to 731 states and 986 transitions. [2023-11-06 22:01:41,622 INFO L78 Accepts]: Start accepts. Automaton has 731 states and 986 transitions. Word has length 47 [2023-11-06 22:01:41,623 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:01:41,623 INFO L495 AbstractCegarLoop]: Abstraction has 731 states and 986 transitions. [2023-11-06 22:01:41,623 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:01:41,623 INFO L276 IsEmpty]: Start isEmpty. Operand 731 states and 986 transitions. [2023-11-06 22:01:41,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2023-11-06 22:01:41,625 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:01:41,625 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:01:41,641 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44df7876-f3a8-4ace-9fa3-5b5575df1734/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2023-11-06 22:01:41,840 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44df7876-f3a8-4ace-9fa3-5b5575df1734/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 22:01:41,841 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [#Ultimate.C_strcpyErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, #Ultimate.C_strcpyErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, #Ultimate.C_strcpyErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE (and 182 more)] === [2023-11-06 22:01:41,841 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:01:41,841 INFO L85 PathProgramCache]: Analyzing trace with hash 42910800, now seen corresponding path program 1 times [2023-11-06 22:01:41,842 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 22:01:41,842 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [267836585] [2023-11-06 22:01:41,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:01:41,842 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 22:01:41,842 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44df7876-f3a8-4ace-9fa3-5b5575df1734/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 22:01:41,843 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44df7876-f3a8-4ace-9fa3-5b5575df1734/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-06 22:01:41,844 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44df7876-f3a8-4ace-9fa3-5b5575df1734/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2023-11-06 22:01:42,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:01:42,349 INFO L262 TraceCheckSpWp]: Trace formula consists of 326 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-06 22:01:42,361 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:01:42,409 INFO L322 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2023-11-06 22:01:42,410 INFO L351 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 1 case distinctions, treesize of input 9 treesize of output 15 [2023-11-06 22:01:42,457 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2023-11-06 22:01:42,457 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:01:42,457 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 22:01:42,457 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [267836585] [2023-11-06 22:01:42,458 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [267836585] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:01:42,458 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:01:42,458 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 22:01:42,458 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [199390716] [2023-11-06 22:01:42,458 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:01:42,459 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:01:42,459 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 22:01:42,460 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:01:42,460 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:01:42,460 INFO L87 Difference]: Start difference. First operand 731 states and 986 transitions. Second operand has 3 states, 2 states have (on average 8.5) internal successors, (17), 3 states have internal predecessors, (17), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-06 22:01:46,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:01:46,335 INFO L93 Difference]: Finished difference Result 775 states and 988 transitions. [2023-11-06 22:01:46,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:01:46,341 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 8.5) internal successors, (17), 3 states have internal predecessors, (17), 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 55 [2023-11-06 22:01:46,341 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:01:46,346 INFO L225 Difference]: With dead ends: 775 [2023-11-06 22:01:46,346 INFO L226 Difference]: Without dead ends: 775 [2023-11-06 22:01:46,347 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:01:46,348 INFO L413 NwaCegarLoop]: 431 mSDtfsCounter, 212 mSDsluCounter, 266 mSDsCounter, 0 mSdLazyCounter, 240 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 213 SdHoareTripleChecker+Valid, 697 SdHoareTripleChecker+Invalid, 248 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 240 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2023-11-06 22:01:46,348 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [213 Valid, 697 Invalid, 248 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 240 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2023-11-06 22:01:46,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 775 states. [2023-11-06 22:01:46,368 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 775 to 726. [2023-11-06 22:01:46,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 726 states, 525 states have (on average 1.7942857142857143) internal successors, (942), 698 states have internal predecessors, (942), 19 states have call successors, (19), 10 states have call predecessors, (19), 10 states have return successors, (20), 17 states have call predecessors, (20), 19 states have call successors, (20) [2023-11-06 22:01:46,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 726 states to 726 states and 981 transitions. [2023-11-06 22:01:46,375 INFO L78 Accepts]: Start accepts. Automaton has 726 states and 981 transitions. Word has length 55 [2023-11-06 22:01:46,376 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:01:46,376 INFO L495 AbstractCegarLoop]: Abstraction has 726 states and 981 transitions. [2023-11-06 22:01:46,376 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 8.5) internal successors, (17), 3 states have internal predecessors, (17), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-06 22:01:46,376 INFO L276 IsEmpty]: Start isEmpty. Operand 726 states and 981 transitions. [2023-11-06 22:01:46,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2023-11-06 22:01:46,377 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:01:46,378 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:01:46,405 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44df7876-f3a8-4ace-9fa3-5b5575df1734/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2023-11-06 22:01:46,590 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44df7876-f3a8-4ace-9fa3-5b5575df1734/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 22:01:46,591 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [#Ultimate.C_strcpyErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, #Ultimate.C_strcpyErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, #Ultimate.C_strcpyErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE (and 182 more)] === [2023-11-06 22:01:46,591 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:01:46,591 INFO L85 PathProgramCache]: Analyzing trace with hash 42910801, now seen corresponding path program 1 times [2023-11-06 22:01:46,592 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 22:01:46,592 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [412882546] [2023-11-06 22:01:46,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:01:46,592 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 22:01:46,592 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44df7876-f3a8-4ace-9fa3-5b5575df1734/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 22:01:46,593 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44df7876-f3a8-4ace-9fa3-5b5575df1734/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-06 22:01:46,598 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44df7876-f3a8-4ace-9fa3-5b5575df1734/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2023-11-06 22:01:47,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:01:47,257 INFO L262 TraceCheckSpWp]: Trace formula consists of 326 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-06 22:01:47,263 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:01:47,399 INFO L322 Elim1Store]: treesize reduction 20, result has 33.3 percent of original size [2023-11-06 22:01:47,399 INFO L351 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 1 case distinctions, treesize of input 19 treesize of output 21 [2023-11-06 22:01:47,542 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2023-11-06 22:01:47,542 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:01:47,542 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 22:01:47,543 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [412882546] [2023-11-06 22:01:47,543 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [412882546] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:01:47,543 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:01:47,543 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-06 22:01:47,543 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [550376324] [2023-11-06 22:01:47,544 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:01:47,544 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-06 22:01:47,544 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 22:01:47,545 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-06 22:01:47,545 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-06 22:01:47,546 INFO L87 Difference]: Start difference. First operand 726 states and 981 transitions. Second operand has 6 states, 5 states have (on average 3.4) internal successors, (17), 5 states have internal predecessors, (17), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-06 22:01:50,865 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:01:50,865 INFO L93 Difference]: Finished difference Result 769 states and 1032 transitions. [2023-11-06 22:01:50,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-06 22:01:50,869 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.4) internal successors, (17), 5 states have internal predecessors, (17), 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 55 [2023-11-06 22:01:50,869 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:01:50,875 INFO L225 Difference]: With dead ends: 769 [2023-11-06 22:01:50,875 INFO L226 Difference]: Without dead ends: 769 [2023-11-06 22:01:50,875 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-11-06 22:01:50,876 INFO L413 NwaCegarLoop]: 484 mSDtfsCounter, 380 mSDsluCounter, 1363 mSDsCounter, 0 mSdLazyCounter, 193 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 383 SdHoareTripleChecker+Valid, 1847 SdHoareTripleChecker+Invalid, 193 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 193 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2023-11-06 22:01:50,877 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [383 Valid, 1847 Invalid, 193 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 193 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2023-11-06 22:01:50,879 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 769 states. [2023-11-06 22:01:50,897 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 769 to 725. [2023-11-06 22:01:50,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 725 states, 525 states have (on average 1.7923809523809524) internal successors, (941), 697 states have internal predecessors, (941), 19 states have call successors, (19), 10 states have call predecessors, (19), 10 states have return successors, (20), 17 states have call predecessors, (20), 19 states have call successors, (20) [2023-11-06 22:01:50,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 725 states to 725 states and 980 transitions. [2023-11-06 22:01:50,904 INFO L78 Accepts]: Start accepts. Automaton has 725 states and 980 transitions. Word has length 55 [2023-11-06 22:01:50,904 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:01:50,905 INFO L495 AbstractCegarLoop]: Abstraction has 725 states and 980 transitions. [2023-11-06 22:01:50,905 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.4) internal successors, (17), 5 states have internal predecessors, (17), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-06 22:01:50,905 INFO L276 IsEmpty]: Start isEmpty. Operand 725 states and 980 transitions. [2023-11-06 22:01:50,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2023-11-06 22:01:50,906 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:01:50,907 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:01:50,931 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44df7876-f3a8-4ace-9fa3-5b5575df1734/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2023-11-06 22:01:51,130 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44df7876-f3a8-4ace-9fa3-5b5575df1734/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 22:01:51,130 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr9REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [#Ultimate.C_strcpyErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, #Ultimate.C_strcpyErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, #Ultimate.C_strcpyErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE (and 182 more)] === [2023-11-06 22:01:51,130 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:01:51,131 INFO L85 PathProgramCache]: Analyzing trace with hash -1544291404, now seen corresponding path program 1 times [2023-11-06 22:01:51,131 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 22:01:51,132 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2016781010] [2023-11-06 22:01:51,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:01:51,132 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 22:01:51,132 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44df7876-f3a8-4ace-9fa3-5b5575df1734/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 22:01:51,134 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44df7876-f3a8-4ace-9fa3-5b5575df1734/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-06 22:01:51,181 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44df7876-f3a8-4ace-9fa3-5b5575df1734/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2023-11-06 22:01:51,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:01:51,997 INFO L262 TraceCheckSpWp]: Trace formula consists of 349 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-06 22:01:52,001 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:01:52,101 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 22:01:52,102 INFO L351 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 16 treesize of output 10 [2023-11-06 22:01:52,139 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2023-11-06 22:01:52,708 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 22:01:52,710 INFO L351 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 19 treesize of output 14 [2023-11-06 22:01:52,736 INFO L322 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2023-11-06 22:01:52,737 INFO L351 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 [2023-11-06 22:01:52,911 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2023-11-06 22:01:52,911 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:01:52,911 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 22:01:52,911 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2016781010] [2023-11-06 22:01:52,911 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2016781010] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:01:52,911 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:01:52,912 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-06 22:01:52,912 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1260509289] [2023-11-06 22:01:52,912 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:01:52,912 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-06 22:01:52,912 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 22:01:52,913 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-06 22:01:52,913 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2023-11-06 22:01:52,914 INFO L87 Difference]: Start difference. First operand 725 states and 980 transitions. Second operand has 9 states, 8 states have (on average 2.5) internal successors, (20), 8 states have internal predecessors, (20), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-06 22:02:11,085 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:02:11,085 INFO L93 Difference]: Finished difference Result 869 states and 1065 transitions. [2023-11-06 22:02:11,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-06 22:02:11,087 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 2.5) internal successors, (20), 8 states have internal predecessors, (20), 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 58 [2023-11-06 22:02:11,087 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:02:11,092 INFO L225 Difference]: With dead ends: 869 [2023-11-06 22:02:11,092 INFO L226 Difference]: Without dead ends: 869 [2023-11-06 22:02:11,093 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2023-11-06 22:02:11,093 INFO L413 NwaCegarLoop]: 379 mSDtfsCounter, 887 mSDsluCounter, 1957 mSDsCounter, 0 mSdLazyCounter, 1298 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 889 SdHoareTripleChecker+Valid, 2336 SdHoareTripleChecker+Invalid, 1314 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 1298 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.9s IncrementalHoareTripleChecker+Time [2023-11-06 22:02:11,094 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [889 Valid, 2336 Invalid, 1314 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 1298 Invalid, 0 Unknown, 0 Unchecked, 17.9s Time] [2023-11-06 22:02:11,095 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 869 states. [2023-11-06 22:02:11,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 869 to 758. [2023-11-06 22:02:11,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 758 states, 558 states have (on average 1.7849462365591398) internal successors, (996), 729 states have internal predecessors, (996), 19 states have call successors, (19), 10 states have call predecessors, (19), 10 states have return successors, (20), 18 states have call predecessors, (20), 19 states have call successors, (20) [2023-11-06 22:02:11,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 758 states to 758 states and 1035 transitions. [2023-11-06 22:02:11,115 INFO L78 Accepts]: Start accepts. Automaton has 758 states and 1035 transitions. Word has length 58 [2023-11-06 22:02:11,115 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:02:11,115 INFO L495 AbstractCegarLoop]: Abstraction has 758 states and 1035 transitions. [2023-11-06 22:02:11,115 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 2.5) internal successors, (20), 8 states have internal predecessors, (20), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-06 22:02:11,115 INFO L276 IsEmpty]: Start isEmpty. Operand 758 states and 1035 transitions. [2023-11-06 22:02:11,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2023-11-06 22:02:11,116 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:02:11,117 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:02:11,141 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44df7876-f3a8-4ace-9fa3-5b5575df1734/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2023-11-06 22:02:11,334 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44df7876-f3a8-4ace-9fa3-5b5575df1734/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 22:02:11,334 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr12REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [#Ultimate.C_strcpyErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, #Ultimate.C_strcpyErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, #Ultimate.C_strcpyErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE (and 182 more)] === [2023-11-06 22:02:11,334 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:02:11,334 INFO L85 PathProgramCache]: Analyzing trace with hash 1704760094, now seen corresponding path program 1 times [2023-11-06 22:02:11,335 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 22:02:11,335 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [660430828] [2023-11-06 22:02:11,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:02:11,335 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 22:02:11,335 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44df7876-f3a8-4ace-9fa3-5b5575df1734/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 22:02:11,337 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44df7876-f3a8-4ace-9fa3-5b5575df1734/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-06 22:02:11,344 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44df7876-f3a8-4ace-9fa3-5b5575df1734/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2023-11-06 22:02:12,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:02:12,088 INFO L262 TraceCheckSpWp]: Trace formula consists of 369 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-06 22:02:12,091 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:02:12,106 INFO L351 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 11 treesize of output 7 [2023-11-06 22:02:12,118 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 22:02:12,119 INFO L351 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 1 [2023-11-06 22:02:12,185 INFO L322 Elim1Store]: treesize reduction 24, result has 33.3 percent of original size [2023-11-06 22:02:12,185 INFO L351 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 [2023-11-06 22:02:12,221 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2023-11-06 22:02:12,221 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:02:12,221 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 22:02:12,222 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [660430828] [2023-11-06 22:02:12,222 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [660430828] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:02:12,222 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:02:12,222 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-06 22:02:12,222 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [165584073] [2023-11-06 22:02:12,222 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:02:12,223 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-06 22:02:12,223 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 22:02:12,223 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-06 22:02:12,223 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-06 22:02:12,224 INFO L87 Difference]: Start difference. First operand 758 states and 1035 transitions. Second operand has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 4 states have internal predecessors, (23), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-06 22:02:13,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:02:13,943 INFO L93 Difference]: Finished difference Result 806 states and 1040 transitions. [2023-11-06 22:02:13,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-06 22:02:13,944 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 4 states have internal predecessors, (23), 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 61 [2023-11-06 22:02:13,944 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:02:13,949 INFO L225 Difference]: With dead ends: 806 [2023-11-06 22:02:13,949 INFO L226 Difference]: Without dead ends: 806 [2023-11-06 22:02:13,949 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-06 22:02:13,950 INFO L413 NwaCegarLoop]: 433 mSDtfsCounter, 212 mSDsluCounter, 403 mSDsCounter, 0 mSdLazyCounter, 312 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 213 SdHoareTripleChecker+Valid, 836 SdHoareTripleChecker+Invalid, 316 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 312 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2023-11-06 22:02:13,950 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [213 Valid, 836 Invalid, 316 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 312 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2023-11-06 22:02:13,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 806 states. [2023-11-06 22:02:13,965 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 806 to 757. [2023-11-06 22:02:13,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 757 states, 558 states have (on average 1.7813620071684588) internal successors, (994), 728 states have internal predecessors, (994), 19 states have call successors, (19), 10 states have call predecessors, (19), 10 states have return successors, (20), 18 states have call predecessors, (20), 19 states have call successors, (20) [2023-11-06 22:02:13,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 757 states to 757 states and 1033 transitions. [2023-11-06 22:02:13,971 INFO L78 Accepts]: Start accepts. Automaton has 757 states and 1033 transitions. Word has length 61 [2023-11-06 22:02:13,971 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:02:13,971 INFO L495 AbstractCegarLoop]: Abstraction has 757 states and 1033 transitions. [2023-11-06 22:02:13,971 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 4 states have internal predecessors, (23), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-06 22:02:13,971 INFO L276 IsEmpty]: Start isEmpty. Operand 757 states and 1033 transitions. [2023-11-06 22:02:13,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2023-11-06 22:02:13,972 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:02:13,972 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:02:13,996 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44df7876-f3a8-4ace-9fa3-5b5575df1734/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2023-11-06 22:02:14,195 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44df7876-f3a8-4ace-9fa3-5b5575df1734/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 22:02:14,195 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr13REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [#Ultimate.C_strcpyErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, #Ultimate.C_strcpyErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, #Ultimate.C_strcpyErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE (and 182 more)] === [2023-11-06 22:02:14,196 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:02:14,196 INFO L85 PathProgramCache]: Analyzing trace with hash 1704760095, now seen corresponding path program 1 times [2023-11-06 22:02:14,196 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 22:02:14,197 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [391624577] [2023-11-06 22:02:14,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:02:14,197 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 22:02:14,197 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44df7876-f3a8-4ace-9fa3-5b5575df1734/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 22:02:14,198 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44df7876-f3a8-4ace-9fa3-5b5575df1734/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-06 22:02:14,201 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44df7876-f3a8-4ace-9fa3-5b5575df1734/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2023-11-06 22:02:15,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:02:15,044 INFO L262 TraceCheckSpWp]: Trace formula consists of 369 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-06 22:02:15,048 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:02:15,126 INFO L351 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 16 treesize of output 10 [2023-11-06 22:02:15,159 INFO L351 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 11 treesize of output 7 [2023-11-06 22:02:15,173 INFO L351 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 11 treesize of output 10 [2023-11-06 22:02:15,201 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2023-11-06 22:02:15,529 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 22:02:15,530 INFO L351 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 19 treesize of output 14 [2023-11-06 22:02:15,552 INFO L322 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2023-11-06 22:02:15,552 INFO L351 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 [2023-11-06 22:02:15,822 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2023-11-06 22:02:15,823 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:02:15,823 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 22:02:15,823 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [391624577] [2023-11-06 22:02:15,823 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [391624577] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:02:15,823 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:02:15,823 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-06 22:02:15,824 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2005259400] [2023-11-06 22:02:15,824 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:02:15,824 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-06 22:02:15,824 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 22:02:15,824 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-06 22:02:15,825 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-11-06 22:02:15,825 INFO L87 Difference]: Start difference. First operand 757 states and 1033 transitions. Second operand has 8 states, 7 states have (on average 3.2857142857142856) internal successors, (23), 7 states have internal predecessors, (23), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-06 22:02:26,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:02:26,206 INFO L93 Difference]: Finished difference Result 812 states and 1041 transitions. [2023-11-06 22:02:26,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-06 22:02:26,207 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.2857142857142856) internal successors, (23), 7 states have internal predecessors, (23), 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 61 [2023-11-06 22:02:26,207 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:02:26,211 INFO L225 Difference]: With dead ends: 812 [2023-11-06 22:02:26,212 INFO L226 Difference]: Without dead ends: 812 [2023-11-06 22:02:26,212 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2023-11-06 22:02:26,213 INFO L413 NwaCegarLoop]: 389 mSDtfsCounter, 694 mSDsluCounter, 1474 mSDsCounter, 0 mSdLazyCounter, 832 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 696 SdHoareTripleChecker+Valid, 1863 SdHoareTripleChecker+Invalid, 841 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 832 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.2s IncrementalHoareTripleChecker+Time [2023-11-06 22:02:26,213 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [696 Valid, 1863 Invalid, 841 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 832 Invalid, 0 Unknown, 0 Unchecked, 10.2s Time] [2023-11-06 22:02:26,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 812 states. [2023-11-06 22:02:26,227 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 812 to 757. [2023-11-06 22:02:26,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 757 states, 558 states have (on average 1.7795698924731183) internal successors, (993), 728 states have internal predecessors, (993), 19 states have call successors, (19), 10 states have call predecessors, (19), 10 states have return successors, (20), 18 states have call predecessors, (20), 19 states have call successors, (20) [2023-11-06 22:02:26,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 757 states to 757 states and 1032 transitions. [2023-11-06 22:02:26,233 INFO L78 Accepts]: Start accepts. Automaton has 757 states and 1032 transitions. Word has length 61 [2023-11-06 22:02:26,233 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:02:26,234 INFO L495 AbstractCegarLoop]: Abstraction has 757 states and 1032 transitions. [2023-11-06 22:02:26,234 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.2857142857142856) internal successors, (23), 7 states have internal predecessors, (23), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-06 22:02:26,234 INFO L276 IsEmpty]: Start isEmpty. Operand 757 states and 1032 transitions. [2023-11-06 22:02:26,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2023-11-06 22:02:26,235 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:02:26,235 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 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] [2023-11-06 22:02:26,261 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44df7876-f3a8-4ace-9fa3-5b5575df1734/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Ended with exit code 0 [2023-11-06 22:02:26,456 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44df7876-f3a8-4ace-9fa3-5b5575df1734/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 22:02:26,457 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr16REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [#Ultimate.C_strcpyErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, #Ultimate.C_strcpyErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, #Ultimate.C_strcpyErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE (and 182 more)] === [2023-11-06 22:02:26,457 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:02:26,457 INFO L85 PathProgramCache]: Analyzing trace with hash -1479976198, now seen corresponding path program 1 times [2023-11-06 22:02:26,458 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 22:02:26,458 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1267549816] [2023-11-06 22:02:26,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:02:26,458 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 22:02:26,458 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44df7876-f3a8-4ace-9fa3-5b5575df1734/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 22:02:26,459 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44df7876-f3a8-4ace-9fa3-5b5575df1734/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-06 22:02:26,462 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44df7876-f3a8-4ace-9fa3-5b5575df1734/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2023-11-06 22:02:27,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:02:27,191 INFO L262 TraceCheckSpWp]: Trace formula consists of 389 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-06 22:02:27,193 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:02:27,245 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2023-11-06 22:02:27,300 INFO L351 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 21 treesize of output 1 [2023-11-06 22:02:27,490 INFO L322 Elim1Store]: treesize reduction 20, result has 33.3 percent of original size [2023-11-06 22:02:27,491 INFO L351 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 1 new quantified variables, introduced 1 case distinctions, treesize of input 36 treesize of output 28 [2023-11-06 22:02:27,606 INFO L322 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2023-11-06 22:02:27,607 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 42 treesize of output 14 [2023-11-06 22:02:27,641 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2023-11-06 22:02:27,641 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:02:27,641 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 22:02:27,641 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1267549816] [2023-11-06 22:02:27,641 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1267549816] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:02:27,641 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:02:27,642 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-06 22:02:27,642 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [452360660] [2023-11-06 22:02:27,642 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:02:27,642 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-06 22:02:27,643 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 22:02:27,643 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-06 22:02:27,643 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2023-11-06 22:02:27,644 INFO L87 Difference]: Start difference. First operand 757 states and 1032 transitions. Second operand has 8 states, 7 states have (on average 3.7142857142857144) internal successors, (26), 8 states have internal predecessors, (26), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-06 22:02:33,513 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-06 22:02:35,519 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-06 22:02:37,529 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-06 22:02:38,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:02:38,571 INFO L93 Difference]: Finished difference Result 754 states and 1027 transitions. [2023-11-06 22:02:38,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-06 22:02:38,572 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.7142857142857144) internal successors, (26), 8 states have internal predecessors, (26), 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 64 [2023-11-06 22:02:38,573 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:02:38,577 INFO L225 Difference]: With dead ends: 754 [2023-11-06 22:02:38,577 INFO L226 Difference]: Without dead ends: 754 [2023-11-06 22:02:38,577 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2023-11-06 22:02:38,578 INFO L413 NwaCegarLoop]: 490 mSDtfsCounter, 273 mSDsluCounter, 1016 mSDsCounter, 0 mSdLazyCounter, 516 mSolverCounterSat, 4 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 276 SdHoareTripleChecker+Valid, 1506 SdHoareTripleChecker+Invalid, 523 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 516 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.8s IncrementalHoareTripleChecker+Time [2023-11-06 22:02:38,578 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [276 Valid, 1506 Invalid, 523 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 516 Invalid, 3 Unknown, 0 Unchecked, 10.8s Time] [2023-11-06 22:02:38,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 754 states. [2023-11-06 22:02:38,592 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 754 to 736. [2023-11-06 22:02:38,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 736 states, 540 states have (on average 1.7703703703703704) internal successors, (956), 708 states have internal predecessors, (956), 19 states have call successors, (19), 10 states have call predecessors, (19), 10 states have return successors, (20), 17 states have call predecessors, (20), 19 states have call successors, (20) [2023-11-06 22:02:38,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 736 states to 736 states and 995 transitions. [2023-11-06 22:02:38,598 INFO L78 Accepts]: Start accepts. Automaton has 736 states and 995 transitions. Word has length 64 [2023-11-06 22:02:38,598 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:02:38,598 INFO L495 AbstractCegarLoop]: Abstraction has 736 states and 995 transitions. [2023-11-06 22:02:38,598 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.7142857142857144) internal successors, (26), 8 states have internal predecessors, (26), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-06 22:02:38,598 INFO L276 IsEmpty]: Start isEmpty. Operand 736 states and 995 transitions. [2023-11-06 22:02:38,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2023-11-06 22:02:38,599 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:02:38,599 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 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] [2023-11-06 22:02:38,622 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44df7876-f3a8-4ace-9fa3-5b5575df1734/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2023-11-06 22:02:38,812 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44df7876-f3a8-4ace-9fa3-5b5575df1734/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 22:02:38,813 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr17REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [#Ultimate.C_strcpyErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, #Ultimate.C_strcpyErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, #Ultimate.C_strcpyErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE (and 182 more)] === [2023-11-06 22:02:38,813 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:02:38,813 INFO L85 PathProgramCache]: Analyzing trace with hash -1479976197, now seen corresponding path program 1 times [2023-11-06 22:02:38,813 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 22:02:38,814 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1087828541] [2023-11-06 22:02:38,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:02:38,814 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 22:02:38,814 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44df7876-f3a8-4ace-9fa3-5b5575df1734/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 22:02:38,815 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44df7876-f3a8-4ace-9fa3-5b5575df1734/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-06 22:02:38,816 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44df7876-f3a8-4ace-9fa3-5b5575df1734/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2023-11-06 22:02:39,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:02:39,545 INFO L262 TraceCheckSpWp]: Trace formula consists of 389 conjuncts, 16 conjunts are in the unsatisfiable core [2023-11-06 22:02:39,547 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:02:39,560 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2023-11-06 22:02:39,595 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-11-06 22:02:39,682 INFO L351 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 16 treesize of output 12 [2023-11-06 22:02:39,713 INFO L351 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 25 treesize of output 1 [2023-11-06 22:02:39,852 INFO L351 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 23 treesize of output 18 [2023-11-06 22:02:39,878 INFO L351 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 21 treesize of output 16 [2023-11-06 22:02:39,966 INFO L351 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 27 treesize of output 9 [2023-11-06 22:02:40,013 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2023-11-06 22:02:40,014 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:02:40,014 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 22:02:40,014 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1087828541] [2023-11-06 22:02:40,014 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1087828541] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:02:40,014 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:02:40,014 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-06 22:02:40,014 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [12095627] [2023-11-06 22:02:40,014 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:02:40,015 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-06 22:02:40,015 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 22:02:40,016 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-06 22:02:40,016 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-11-06 22:02:40,016 INFO L87 Difference]: Start difference. First operand 736 states and 995 transitions. Second operand has 7 states, 6 states have (on average 4.333333333333333) internal successors, (26), 7 states have internal predecessors, (26), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-06 22:02:46,187 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-06 22:02:47,216 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:02:47,216 INFO L93 Difference]: Finished difference Result 735 states and 993 transitions. [2023-11-06 22:02:47,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-06 22:02:47,218 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 4.333333333333333) internal successors, (26), 7 states have internal predecessors, (26), 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 64 [2023-11-06 22:02:47,219 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:02:47,223 INFO L225 Difference]: With dead ends: 735 [2023-11-06 22:02:47,223 INFO L226 Difference]: Without dead ends: 735 [2023-11-06 22:02:47,223 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2023-11-06 22:02:47,224 INFO L413 NwaCegarLoop]: 483 mSDtfsCounter, 271 mSDsluCounter, 1221 mSDsCounter, 0 mSdLazyCounter, 573 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 274 SdHoareTripleChecker+Valid, 1704 SdHoareTripleChecker+Invalid, 575 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 573 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.0s IncrementalHoareTripleChecker+Time [2023-11-06 22:02:47,224 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [274 Valid, 1704 Invalid, 575 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 573 Invalid, 1 Unknown, 0 Unchecked, 7.0s Time] [2023-11-06 22:02:47,226 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 735 states. [2023-11-06 22:02:47,238 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 735 to 735. [2023-11-06 22:02:47,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 735 states, 540 states have (on average 1.7666666666666666) internal successors, (954), 707 states have internal predecessors, (954), 19 states have call successors, (19), 10 states have call predecessors, (19), 10 states have return successors, (20), 17 states have call predecessors, (20), 19 states have call successors, (20) [2023-11-06 22:02:47,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 735 states to 735 states and 993 transitions. [2023-11-06 22:02:47,244 INFO L78 Accepts]: Start accepts. Automaton has 735 states and 993 transitions. Word has length 64 [2023-11-06 22:02:47,244 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:02:47,244 INFO L495 AbstractCegarLoop]: Abstraction has 735 states and 993 transitions. [2023-11-06 22:02:47,244 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 4.333333333333333) internal successors, (26), 7 states have internal predecessors, (26), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-06 22:02:47,244 INFO L276 IsEmpty]: Start isEmpty. Operand 735 states and 993 transitions. [2023-11-06 22:02:47,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2023-11-06 22:02:47,245 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:02:47,245 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 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] [2023-11-06 22:02:47,268 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44df7876-f3a8-4ace-9fa3-5b5575df1734/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Forceful destruction successful, exit code 0 [2023-11-06 22:02:47,460 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44df7876-f3a8-4ace-9fa3-5b5575df1734/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 22:02:47,461 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr20REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [#Ultimate.C_strcpyErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, #Ultimate.C_strcpyErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, #Ultimate.C_strcpyErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE (and 182 more)] === [2023-11-06 22:02:47,461 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:02:47,461 INFO L85 PathProgramCache]: Analyzing trace with hash 543793636, now seen corresponding path program 1 times [2023-11-06 22:02:47,462 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 22:02:47,462 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1406678072] [2023-11-06 22:02:47,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:02:47,462 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 22:02:47,462 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44df7876-f3a8-4ace-9fa3-5b5575df1734/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 22:02:47,464 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44df7876-f3a8-4ace-9fa3-5b5575df1734/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-06 22:02:47,503 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44df7876-f3a8-4ace-9fa3-5b5575df1734/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2023-11-06 22:02:48,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:02:48,296 INFO L262 TraceCheckSpWp]: Trace formula consists of 411 conjuncts, 14 conjunts are in the unsatisfiable core [2023-11-06 22:02:48,299 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:02:48,312 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2023-11-06 22:02:48,440 INFO L322 Elim1Store]: treesize reduction 22, result has 35.3 percent of original size [2023-11-06 22:02:48,441 INFO L351 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 27 [2023-11-06 22:02:48,523 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 1 [2023-11-06 22:02:48,733 INFO L351 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 38 treesize of output 31 [2023-11-06 22:02:48,971 INFO L322 Elim1Store]: treesize reduction 24, result has 17.2 percent of original size [2023-11-06 22:02:48,971 INFO L351 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 56 treesize of output 55 [2023-11-06 22:02:49,080 INFO L351 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 42 treesize of output 15 [2023-11-06 22:02:49,236 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2023-11-06 22:02:49,236 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:02:49,237 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 22:02:49,237 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1406678072] [2023-11-06 22:02:49,237 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1406678072] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:02:49,237 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:02:49,237 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-06 22:02:49,238 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1080702082] [2023-11-06 22:02:49,238 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:02:49,238 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-06 22:02:49,239 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 22:02:49,239 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-06 22:02:49,239 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2023-11-06 22:02:49,240 INFO L87 Difference]: Start difference. First operand 735 states and 993 transitions. Second operand has 9 states, 8 states have (on average 3.875) internal successors, (31), 9 states have internal predecessors, (31), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-06 22:02:56,509 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-06 22:02:58,518 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-06 22:03:00,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:03:00,138 INFO L93 Difference]: Finished difference Result 798 states and 1017 transitions. [2023-11-06 22:03:00,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-06 22:03:00,138 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.875) internal successors, (31), 9 states have internal predecessors, (31), 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 69 [2023-11-06 22:03:00,139 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:03:00,142 INFO L225 Difference]: With dead ends: 798 [2023-11-06 22:03:00,142 INFO L226 Difference]: Without dead ends: 798 [2023-11-06 22:03:00,142 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2023-11-06 22:03:00,143 INFO L413 NwaCegarLoop]: 414 mSDtfsCounter, 426 mSDsluCounter, 1236 mSDsCounter, 0 mSdLazyCounter, 742 mSolverCounterSat, 8 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 429 SdHoareTripleChecker+Valid, 1650 SdHoareTripleChecker+Invalid, 752 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 742 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.5s IncrementalHoareTripleChecker+Time [2023-11-06 22:03:00,143 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [429 Valid, 1650 Invalid, 752 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 742 Invalid, 2 Unknown, 0 Unchecked, 10.5s Time] [2023-11-06 22:03:00,145 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 798 states. [2023-11-06 22:03:00,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 798 to 743. [2023-11-06 22:03:00,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 743 states, 548 states have (on average 1.7645985401459854) internal successors, (967), 715 states have internal predecessors, (967), 19 states have call successors, (19), 10 states have call predecessors, (19), 10 states have return successors, (20), 17 states have call predecessors, (20), 19 states have call successors, (20) [2023-11-06 22:03:00,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 743 states to 743 states and 1006 transitions. [2023-11-06 22:03:00,162 INFO L78 Accepts]: Start accepts. Automaton has 743 states and 1006 transitions. Word has length 69 [2023-11-06 22:03:00,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:03:00,162 INFO L495 AbstractCegarLoop]: Abstraction has 743 states and 1006 transitions. [2023-11-06 22:03:00,162 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.875) internal successors, (31), 9 states have internal predecessors, (31), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-06 22:03:00,163 INFO L276 IsEmpty]: Start isEmpty. Operand 743 states and 1006 transitions. [2023-11-06 22:03:00,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2023-11-06 22:03:00,163 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:03:00,163 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 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] [2023-11-06 22:03:00,186 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44df7876-f3a8-4ace-9fa3-5b5575df1734/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Forceful destruction successful, exit code 0 [2023-11-06 22:03:00,385 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44df7876-f3a8-4ace-9fa3-5b5575df1734/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 22:03:00,385 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr21REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [#Ultimate.C_strcpyErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, #Ultimate.C_strcpyErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, #Ultimate.C_strcpyErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE (and 182 more)] === [2023-11-06 22:03:00,385 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:03:00,386 INFO L85 PathProgramCache]: Analyzing trace with hash 543793637, now seen corresponding path program 1 times [2023-11-06 22:03:00,386 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 22:03:00,386 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [40306401] [2023-11-06 22:03:00,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:03:00,386 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 22:03:00,387 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44df7876-f3a8-4ace-9fa3-5b5575df1734/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 22:03:00,387 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44df7876-f3a8-4ace-9fa3-5b5575df1734/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-06 22:03:00,389 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44df7876-f3a8-4ace-9fa3-5b5575df1734/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2023-11-06 22:03:01,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:03:01,228 INFO L262 TraceCheckSpWp]: Trace formula consists of 411 conjuncts, 25 conjunts are in the unsatisfiable core [2023-11-06 22:03:01,232 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:03:01,240 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2023-11-06 22:03:01,340 INFO L322 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2023-11-06 22:03:01,340 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13 [2023-11-06 22:03:01,353 INFO L351 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 [2023-11-06 22:03:01,438 INFO L351 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 16 treesize of output 12 [2023-11-06 22:03:01,487 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 1 [2023-11-06 22:03:01,692 INFO L351 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 36 treesize of output 29 [2023-11-06 22:03:01,698 INFO L351 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 21 treesize of output 16 [2023-11-06 22:03:01,991 INFO L322 Elim1Store]: treesize reduction 24, result has 17.2 percent of original size [2023-11-06 22:03:01,992 INFO L351 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 80 treesize of output 75 [2023-11-06 22:03:02,005 INFO L351 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 39 treesize of output 16 [2023-11-06 22:03:02,217 INFO L351 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 40 treesize of output 13 [2023-11-06 22:03:02,233 INFO L351 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 12 treesize of output 3 [2023-11-06 22:03:02,311 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2023-11-06 22:03:02,311 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:03:02,311 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 22:03:02,311 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [40306401] [2023-11-06 22:03:02,311 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [40306401] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:03:02,312 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:03:02,312 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-06 22:03:02,312 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [624313201] [2023-11-06 22:03:02,312 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:03:02,312 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-06 22:03:02,312 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 22:03:02,313 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-06 22:03:02,313 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2023-11-06 22:03:02,313 INFO L87 Difference]: Start difference. First operand 743 states and 1006 transitions. Second operand has 10 states, 9 states have (on average 3.4444444444444446) internal successors, (31), 10 states have internal predecessors, (31), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-06 22:03:10,543 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-06 22:03:12,556 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-06 22:03:14,565 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-06 22:03:16,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:03:16,174 INFO L93 Difference]: Finished difference Result 795 states and 1011 transitions. [2023-11-06 22:03:16,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-06 22:03:16,175 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.4444444444444446) internal successors, (31), 10 states have internal predecessors, (31), 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 69 [2023-11-06 22:03:16,175 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:03:16,178 INFO L225 Difference]: With dead ends: 795 [2023-11-06 22:03:16,178 INFO L226 Difference]: Without dead ends: 795 [2023-11-06 22:03:16,179 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=75, Invalid=197, Unknown=0, NotChecked=0, Total=272 [2023-11-06 22:03:16,179 INFO L413 NwaCegarLoop]: 415 mSDtfsCounter, 627 mSDsluCounter, 1474 mSDsCounter, 0 mSdLazyCounter, 1092 mSolverCounterSat, 11 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 630 SdHoareTripleChecker+Valid, 1889 SdHoareTripleChecker+Invalid, 1106 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 1092 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.3s IncrementalHoareTripleChecker+Time [2023-11-06 22:03:16,179 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [630 Valid, 1889 Invalid, 1106 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 1092 Invalid, 3 Unknown, 0 Unchecked, 13.3s Time] [2023-11-06 22:03:16,180 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 795 states. [2023-11-06 22:03:16,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 795 to 743. [2023-11-06 22:03:16,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 743 states, 548 states have (on average 1.7572992700729928) internal successors, (963), 715 states have internal predecessors, (963), 19 states have call successors, (19), 10 states have call predecessors, (19), 10 states have return successors, (20), 17 states have call predecessors, (20), 19 states have call successors, (20) [2023-11-06 22:03:16,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 743 states to 743 states and 1002 transitions. [2023-11-06 22:03:16,196 INFO L78 Accepts]: Start accepts. Automaton has 743 states and 1002 transitions. Word has length 69 [2023-11-06 22:03:16,196 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:03:16,197 INFO L495 AbstractCegarLoop]: Abstraction has 743 states and 1002 transitions. [2023-11-06 22:03:16,197 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.4444444444444446) internal successors, (31), 10 states have internal predecessors, (31), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-06 22:03:16,197 INFO L276 IsEmpty]: Start isEmpty. Operand 743 states and 1002 transitions. [2023-11-06 22:03:16,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2023-11-06 22:03:16,198 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:03:16,198 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:03:16,221 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44df7876-f3a8-4ace-9fa3-5b5575df1734/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Forceful destruction successful, exit code 0 [2023-11-06 22:03:16,420 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44df7876-f3a8-4ace-9fa3-5b5575df1734/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 22:03:16,420 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr20REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [#Ultimate.C_strcpyErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, #Ultimate.C_strcpyErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, #Ultimate.C_strcpyErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE (and 182 more)] === [2023-11-06 22:03:16,420 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:03:16,420 INFO L85 PathProgramCache]: Analyzing trace with hash -672497496, now seen corresponding path program 1 times [2023-11-06 22:03:16,421 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 22:03:16,421 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [698823616] [2023-11-06 22:03:16,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:03:16,421 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 22:03:16,421 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44df7876-f3a8-4ace-9fa3-5b5575df1734/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 22:03:16,422 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44df7876-f3a8-4ace-9fa3-5b5575df1734/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-06 22:03:16,424 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44df7876-f3a8-4ace-9fa3-5b5575df1734/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (19)] Waiting until timeout for monitored process [2023-11-06 22:03:17,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:03:17,254 INFO L262 TraceCheckSpWp]: Trace formula consists of 434 conjuncts, 16 conjunts are in the unsatisfiable core [2023-11-06 22:03:17,257 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:03:17,264 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2023-11-06 22:03:17,382 INFO L322 Elim1Store]: treesize reduction 22, result has 35.3 percent of original size [2023-11-06 22:03:17,383 INFO L351 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 27 [2023-11-06 22:03:17,467 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 1 [2023-11-06 22:03:17,661 INFO L351 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 38 treesize of output 31 [2023-11-06 22:03:17,903 INFO L322 Elim1Store]: treesize reduction 24, result has 17.2 percent of original size [2023-11-06 22:03:17,903 INFO L351 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 56 treesize of output 55 [2023-11-06 22:03:18,160 INFO L322 Elim1Store]: treesize reduction 24, result has 17.2 percent of original size [2023-11-06 22:03:18,160 INFO L351 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 56 treesize of output 55 [2023-11-06 22:03:18,278 INFO L351 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 42 treesize of output 15 [2023-11-06 22:03:18,418 INFO L134 CoverageAnalysis]: Checked inductivity of 194 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 192 trivial. 0 not checked. [2023-11-06 22:03:18,418 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 22:03:18,599 WARN L839 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1356 (Array (_ BitVec 64) (_ BitVec 64)))) (= (_ bv0 1) (bvadd (select |c_#valid| (select (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_#t~mem195#1.base| v_ArrVal_1356) |c_ULTIMATE.start_main_~argv~0#1.base|) (bvadd (bvmul (_ bv8 64) ((_ sign_extend 32) |c_ULTIMATE.start_main_~i~4#1|)) |c_ULTIMATE.start_main_~argv~0#1.offset|))) (_ bv1 1)))) is different from false [2023-11-06 22:03:18,652 WARN L839 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1356 (Array (_ BitVec 64) (_ BitVec 64)))) (= (bvadd (select |c_#valid| (let ((.cse0 (bvadd (bvmul (_ bv8 64) ((_ sign_extend 32) |c_ULTIMATE.start_main_~i~4#1|)) |c_ULTIMATE.start_main_~argv~0#1.offset|))) (select (select (store |c_#memory_$Pointer$.base| (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~argv~0#1.base|) .cse0) v_ArrVal_1356) |c_ULTIMATE.start_main_~argv~0#1.base|) .cse0))) (_ bv1 1)) (_ bv0 1))) is different from false [2023-11-06 22:03:18,706 WARN L839 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1356 (Array (_ BitVec 64) (_ BitVec 64))) (v_ArrVal_1355 (Array (_ BitVec 64) (_ BitVec 64)))) (= (_ bv0 1) (bvadd (select |c_#valid| (let ((.cse1 (bvadd (bvmul (_ bv8 64) ((_ sign_extend 32) |c_ULTIMATE.start_main_~i~4#1|)) |c_ULTIMATE.start_main_~argv~0#1.offset|))) (select (select (let ((.cse0 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_#t~mem193#1.base| v_ArrVal_1355))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~argv~0#1.base|) .cse1) v_ArrVal_1356)) |c_ULTIMATE.start_main_~argv~0#1.base|) .cse1))) (_ bv1 1)))) is different from false [2023-11-06 22:03:18,739 WARN L839 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1356 (Array (_ BitVec 64) (_ BitVec 64))) (v_ArrVal_1355 (Array (_ BitVec 64) (_ BitVec 64)))) (= (bvadd (select |c_#valid| (let ((.cse1 (bvadd (bvmul (_ bv8 64) ((_ sign_extend 32) |c_ULTIMATE.start_main_~i~4#1|)) |c_ULTIMATE.start_main_~argv~0#1.offset|))) (select (select (let ((.cse0 (store |c_#memory_$Pointer$.base| (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~argv~0#1.base|) .cse1) v_ArrVal_1355))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~argv~0#1.base|) .cse1) v_ArrVal_1356)) |c_ULTIMATE.start_main_~argv~0#1.base|) .cse1))) (_ bv1 1)) (_ bv0 1))) is different from false [2023-11-06 22:03:18,790 WARN L839 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1356 (Array (_ BitVec 64) (_ BitVec 64))) (v_ArrVal_1355 (Array (_ BitVec 64) (_ BitVec 64))) (v_ArrVal_1354 (Array (_ BitVec 64) (_ BitVec 64)))) (= (_ bv0 1) (bvadd (select |c_#valid| (let ((.cse1 (bvadd (bvmul (_ bv8 64) ((_ sign_extend 32) |c_ULTIMATE.start_main_~i~4#1|)) |c_ULTIMATE.start_main_~argv~0#1.offset|))) (select (select (let ((.cse0 (let ((.cse2 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~mem_track~0#1.base| v_ArrVal_1354))) (store .cse2 (select (select .cse2 |c_ULTIMATE.start_main_~argv~0#1.base|) .cse1) v_ArrVal_1355)))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~argv~0#1.base|) .cse1) v_ArrVal_1356)) |c_ULTIMATE.start_main_~argv~0#1.base|) .cse1))) (_ bv1 1)))) is different from false [2023-11-06 22:03:18,859 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-06 22:03:18,859 INFO L351 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 1 new quantified variables, introduced 1 case distinctions, treesize of input 116 treesize of output 78 [2023-11-06 22:03:18,869 INFO L351 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 13423 treesize of output 10732 [2023-11-06 22:03:19,327 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 3662 treesize of output 3438 [2023-11-06 22:03:19,375 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 3438 treesize of output 2899 [2023-11-06 22:03:19,423 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 2899 treesize of output 2395 [2023-11-06 22:03:59,640 WARN L293 SmtUtils]: Spent 35.65s on a formula simplification that was a NOOP. DAG size: 1094 (called from [L 319] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2023-11-06 22:03:59,642 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-06 22:03:59,645 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 21 select indices, 21 select index equivalence classes, 0 disjoint index pairs (out of 210 index pairs), introduced 21 new quantified variables, introduced 210 case distinctions, treesize of input 297 treesize of output 2353