./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/array-memsafety-realloc/array-realloc-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- 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_694f9110-61ed-43b9-87a8-7b1a466835ba/bin/uautomizer-verify-WvqO1wxjHP/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_694f9110-61ed-43b9-87a8-7b1a466835ba/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_694f9110-61ed-43b9-87a8-7b1a466835ba/bin/uautomizer-verify-WvqO1wxjHP/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_694f9110-61ed-43b9-87a8-7b1a466835ba/bin/uautomizer-verify-WvqO1wxjHP/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/array-memsafety-realloc/array-realloc-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_694f9110-61ed-43b9-87a8-7b1a466835ba/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_694f9110-61ed-43b9-87a8-7b1a466835ba/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 32bit --witnessprinter.graph.data.programhash a7528f200456114b53348dcc6f65daa446d01523914ddd1f3b2ed0ccb2daf1cf --- Real Ultimate output --- This is Ultimate 0.2.3-dev-e7bb482 [2023-11-06 22:16:28,018 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-06 22:16:28,099 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_694f9110-61ed-43b9-87a8-7b1a466835ba/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2023-11-06 22:16:28,104 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-06 22:16:28,105 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-06 22:16:28,130 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-06 22:16:28,131 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-06 22:16:28,132 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-06 22:16:28,133 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-06 22:16:28,133 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-06 22:16:28,134 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-06 22:16:28,134 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-06 22:16:28,135 INFO L153 SettingsManager]: * Use SBE=true [2023-11-06 22:16:28,136 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-06 22:16:28,136 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-06 22:16:28,137 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-06 22:16:28,137 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-06 22:16:28,138 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-06 22:16:28,138 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-06 22:16:28,139 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-06 22:16:28,139 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-06 22:16:28,140 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-06 22:16:28,141 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-06 22:16:28,141 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-06 22:16:28,141 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-06 22:16:28,142 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-06 22:16:28,142 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-06 22:16:28,143 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-06 22:16:28,143 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-06 22:16:28,144 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 22:16:28,144 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-06 22:16:28,145 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-06 22:16:28,145 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-06 22:16:28,146 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-06 22:16:28,146 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-06 22:16:28,147 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-06 22:16:28,147 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-06 22:16:28,147 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-06 22:16:28,148 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_694f9110-61ed-43b9-87a8-7b1a466835ba/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_694f9110-61ed-43b9-87a8-7b1a466835ba/bin/uautomizer-verify-WvqO1wxjHP Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a7528f200456114b53348dcc6f65daa446d01523914ddd1f3b2ed0ccb2daf1cf [2023-11-06 22:16:28,417 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-06 22:16:28,438 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-06 22:16:28,443 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-06 22:16:28,444 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-06 22:16:28,445 INFO L274 PluginConnector]: CDTParser initialized [2023-11-06 22:16:28,446 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_694f9110-61ed-43b9-87a8-7b1a466835ba/bin/uautomizer-verify-WvqO1wxjHP/../../sv-benchmarks/c/array-memsafety-realloc/array-realloc-1.i [2023-11-06 22:16:31,644 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-06 22:16:31,923 INFO L384 CDTParser]: Found 1 translation units. [2023-11-06 22:16:31,923 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_694f9110-61ed-43b9-87a8-7b1a466835ba/sv-benchmarks/c/array-memsafety-realloc/array-realloc-1.i [2023-11-06 22:16:31,960 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_694f9110-61ed-43b9-87a8-7b1a466835ba/bin/uautomizer-verify-WvqO1wxjHP/data/3a262cfbd/c850f5f9cb2b41a1b596ec29ef1f82ed/FLAG67855ddbb [2023-11-06 22:16:31,979 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_694f9110-61ed-43b9-87a8-7b1a466835ba/bin/uautomizer-verify-WvqO1wxjHP/data/3a262cfbd/c850f5f9cb2b41a1b596ec29ef1f82ed [2023-11-06 22:16:31,986 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-06 22:16:31,990 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-06 22:16:31,991 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-06 22:16:31,991 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-06 22:16:31,999 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-06 22:16:32,004 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:16:31" (1/1) ... [2023-11-06 22:16:32,005 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7e0cf766 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:16:32, skipping insertion in model container [2023-11-06 22:16:32,005 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:16:31" (1/1) ... [2023-11-06 22:16:32,074 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 22:16:32,440 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:16:32,454 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 22:16:32,455 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@36cc359e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:16:32, skipping insertion in model container [2023-11-06 22:16:32,455 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-06 22:16:32,456 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2023-11-06 22:16:32,458 INFO L158 Benchmark]: Toolchain (without parser) took 467.26ms. Allocated memory is still 159.4MB. Free memory was 117.7MB in the beginning and 123.6MB in the end (delta: -5.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-06 22:16:32,458 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 119.5MB. Free memory is still 87.4MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-06 22:16:32,459 INFO L158 Benchmark]: CACSL2BoogieTranslator took 464.66ms. Allocated memory is still 159.4MB. Free memory was 117.7MB in the beginning and 123.8MB in the end (delta: -6.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-06 22:16:32,460 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 119.5MB. Free memory is still 87.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 464.66ms. Allocated memory is still 159.4MB. Free memory was 117.7MB in the beginning and 123.8MB in the end (delta: -6.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 515]: 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_694f9110-61ed-43b9-87a8-7b1a466835ba/bin/uautomizer-verify-WvqO1wxjHP/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_694f9110-61ed-43b9-87a8-7b1a466835ba/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_694f9110-61ed-43b9-87a8-7b1a466835ba/bin/uautomizer-verify-WvqO1wxjHP/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_694f9110-61ed-43b9-87a8-7b1a466835ba/bin/uautomizer-verify-WvqO1wxjHP/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/array-memsafety-realloc/array-realloc-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_694f9110-61ed-43b9-87a8-7b1a466835ba/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_694f9110-61ed-43b9-87a8-7b1a466835ba/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 32bit --witnessprinter.graph.data.programhash a7528f200456114b53348dcc6f65daa446d01523914ddd1f3b2ed0ccb2daf1cf --- Real Ultimate output --- This is Ultimate 0.2.3-dev-e7bb482 [2023-11-06 22:16:34,919 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-06 22:16:35,067 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_694f9110-61ed-43b9-87a8-7b1a466835ba/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2023-11-06 22:16:35,077 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-06 22:16:35,078 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-06 22:16:35,126 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-06 22:16:35,127 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-06 22:16:35,127 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-06 22:16:35,128 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-06 22:16:35,133 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-06 22:16:35,134 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-06 22:16:35,135 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-06 22:16:35,135 INFO L153 SettingsManager]: * Use SBE=true [2023-11-06 22:16:35,137 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-06 22:16:35,138 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-06 22:16:35,138 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-06 22:16:35,138 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-06 22:16:35,139 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-06 22:16:35,139 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-06 22:16:35,141 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-06 22:16:35,141 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-06 22:16:35,142 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-06 22:16:35,142 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-06 22:16:35,142 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-06 22:16:35,143 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-06 22:16:35,143 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-06 22:16:35,144 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-06 22:16:35,144 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-06 22:16:35,145 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-06 22:16:35,146 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-06 22:16:35,147 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-06 22:16:35,147 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 22:16:35,148 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-06 22:16:35,148 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-06 22:16:35,149 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-11-06 22:16:35,149 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-06 22:16:35,149 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-06 22:16:35,149 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-06 22:16:35,150 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-06 22:16:35,151 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-11-06 22:16:35,151 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-06 22:16:35,152 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_694f9110-61ed-43b9-87a8-7b1a466835ba/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_694f9110-61ed-43b9-87a8-7b1a466835ba/bin/uautomizer-verify-WvqO1wxjHP Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a7528f200456114b53348dcc6f65daa446d01523914ddd1f3b2ed0ccb2daf1cf [2023-11-06 22:16:35,580 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-06 22:16:35,608 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-06 22:16:35,612 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-06 22:16:35,613 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-06 22:16:35,614 INFO L274 PluginConnector]: CDTParser initialized [2023-11-06 22:16:35,615 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_694f9110-61ed-43b9-87a8-7b1a466835ba/bin/uautomizer-verify-WvqO1wxjHP/../../sv-benchmarks/c/array-memsafety-realloc/array-realloc-1.i [2023-11-06 22:16:38,859 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-06 22:16:39,244 INFO L384 CDTParser]: Found 1 translation units. [2023-11-06 22:16:39,247 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_694f9110-61ed-43b9-87a8-7b1a466835ba/sv-benchmarks/c/array-memsafety-realloc/array-realloc-1.i [2023-11-06 22:16:39,271 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_694f9110-61ed-43b9-87a8-7b1a466835ba/bin/uautomizer-verify-WvqO1wxjHP/data/c446989a5/99555c7e644b478ab2e004612381bd63/FLAG5cacc42b3 [2023-11-06 22:16:39,289 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_694f9110-61ed-43b9-87a8-7b1a466835ba/bin/uautomizer-verify-WvqO1wxjHP/data/c446989a5/99555c7e644b478ab2e004612381bd63 [2023-11-06 22:16:39,295 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-06 22:16:39,297 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-06 22:16:39,300 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-06 22:16:39,301 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-06 22:16:39,306 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-06 22:16:39,307 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:16:39" (1/1) ... [2023-11-06 22:16:39,308 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7e7dc73d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:16:39, skipping insertion in model container [2023-11-06 22:16:39,308 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:16:39" (1/1) ... [2023-11-06 22:16:39,374 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 22:16:39,777 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:16:39,794 INFO L199 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2023-11-06 22:16:39,811 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 22:16:39,856 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:16:39,875 INFO L202 MainTranslator]: Completed pre-run [2023-11-06 22:16:39,919 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:16:39,954 INFO L206 MainTranslator]: Completed translation [2023-11-06 22:16:39,955 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:16:39 WrapperNode [2023-11-06 22:16:39,956 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-06 22:16:39,957 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-06 22:16:39,959 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-06 22:16:39,959 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-06 22:16:39,967 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:16:39" (1/1) ... [2023-11-06 22:16:39,997 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:16:39" (1/1) ... [2023-11-06 22:16:40,026 INFO L138 Inliner]: procedures = 118, calls = 11, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 58 [2023-11-06 22:16:40,026 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-06 22:16:40,027 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-06 22:16:40,027 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-06 22:16:40,027 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-06 22:16:40,036 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:16:39" (1/1) ... [2023-11-06 22:16:40,036 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:16:39" (1/1) ... [2023-11-06 22:16:40,040 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:16:39" (1/1) ... [2023-11-06 22:16:40,040 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:16:39" (1/1) ... [2023-11-06 22:16:40,054 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:16:39" (1/1) ... [2023-11-06 22:16:40,057 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:16:39" (1/1) ... [2023-11-06 22:16:40,061 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:16:39" (1/1) ... [2023-11-06 22:16:40,062 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:16:39" (1/1) ... [2023-11-06 22:16:40,066 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-06 22:16:40,067 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-06 22:16:40,067 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-06 22:16:40,067 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-06 22:16:40,068 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:16:39" (1/1) ... [2023-11-06 22:16:40,074 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 22:16:40,089 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_694f9110-61ed-43b9-87a8-7b1a466835ba/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:16:40,101 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_694f9110-61ed-43b9-87a8-7b1a466835ba/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-06 22:16:40,108 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_694f9110-61ed-43b9-87a8-7b1a466835ba/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-06 22:16:40,145 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-06 22:16:40,145 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-06 22:16:40,145 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2023-11-06 22:16:40,145 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-06 22:16:40,145 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-06 22:16:40,270 INFO L236 CfgBuilder]: Building ICFG [2023-11-06 22:16:40,274 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-06 22:16:40,486 INFO L277 CfgBuilder]: Performing block encoding [2023-11-06 22:16:40,492 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-06 22:16:40,492 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-06 22:16:40,494 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:16:40 BoogieIcfgContainer [2023-11-06 22:16:40,495 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-06 22:16:40,497 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-06 22:16:40,497 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-06 22:16:40,500 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-06 22:16:40,500 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 10:16:39" (1/3) ... [2023-11-06 22:16:40,500 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@743da59b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:16:40, skipping insertion in model container [2023-11-06 22:16:40,501 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:16:39" (2/3) ... [2023-11-06 22:16:40,501 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@743da59b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:16:40, skipping insertion in model container [2023-11-06 22:16:40,501 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:16:40" (3/3) ... [2023-11-06 22:16:40,502 INFO L112 eAbstractionObserver]: Analyzing ICFG array-realloc-1.i [2023-11-06 22:16:40,539 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-06 22:16:40,539 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 9 error locations. [2023-11-06 22:16:40,602 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-06 22:16:40,609 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;@28891a11, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-06 22:16:40,609 INFO L358 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2023-11-06 22:16:40,613 INFO L276 IsEmpty]: Start isEmpty. Operand has 30 states, 20 states have (on average 1.75) internal successors, (35), 29 states have internal predecessors, (35), 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 22:16:40,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-11-06 22:16:40,621 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:16:40,622 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2023-11-06 22:16:40,622 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE (and 6 more)] === [2023-11-06 22:16:40,630 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:16:40,631 INFO L85 PathProgramCache]: Analyzing trace with hash 925656, now seen corresponding path program 1 times [2023-11-06 22:16:40,647 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 22:16:40,648 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1861658714] [2023-11-06 22:16:40,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:16:40,649 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 22:16:40,649 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_694f9110-61ed-43b9-87a8-7b1a466835ba/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 22:16:40,656 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_694f9110-61ed-43b9-87a8-7b1a466835ba/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 22:16:40,696 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_694f9110-61ed-43b9-87a8-7b1a466835ba/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 22:16:40,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:16:40,772 INFO L262 TraceCheckSpWp]: Trace formula consists of 19 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-06 22:16:40,776 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:16:40,808 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 22:16:40,809 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:16:40,809 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 22:16:40,810 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1861658714] [2023-11-06 22:16:40,811 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1861658714] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:16:40,811 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:16:40,811 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 22:16:40,813 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1491627899] [2023-11-06 22:16:40,813 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:16:40,817 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:16:40,817 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 22:16:40,855 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:16:40,856 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:16:40,858 INFO L87 Difference]: Start difference. First operand has 30 states, 20 states have (on average 1.75) internal successors, (35), 29 states have internal predecessors, (35), 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) Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:16:40,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:16:40,922 INFO L93 Difference]: Finished difference Result 31 states and 35 transitions. [2023-11-06 22:16:40,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:16:40,924 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2023-11-06 22:16:40,925 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:16:40,932 INFO L225 Difference]: With dead ends: 31 [2023-11-06 22:16:40,932 INFO L226 Difference]: Without dead ends: 28 [2023-11-06 22:16:40,934 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 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 22:16:40,938 INFO L413 NwaCegarLoop]: 32 mSDtfsCounter, 2 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 51 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-06 22:16:40,940 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 51 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 22:16:40,956 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2023-11-06 22:16:40,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2023-11-06 22:16:40,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 19 states have (on average 1.631578947368421) internal successors, (31), 27 states have internal predecessors, (31), 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 22:16:40,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 31 transitions. [2023-11-06 22:16:40,975 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 31 transitions. Word has length 4 [2023-11-06 22:16:40,975 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:16:40,976 INFO L495 AbstractCegarLoop]: Abstraction has 28 states and 31 transitions. [2023-11-06 22:16:40,976 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:16:40,977 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 31 transitions. [2023-11-06 22:16:40,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-11-06 22:16:40,977 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:16:40,977 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2023-11-06 22:16:40,997 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_694f9110-61ed-43b9-87a8-7b1a466835ba/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 22:16:41,189 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_694f9110-61ed-43b9-87a8-7b1a466835ba/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 22:16:41,190 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE (and 6 more)] === [2023-11-06 22:16:41,191 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:16:41,191 INFO L85 PathProgramCache]: Analyzing trace with hash 28695828, now seen corresponding path program 1 times [2023-11-06 22:16:41,192 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 22:16:41,192 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1569887687] [2023-11-06 22:16:41,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:16:41,192 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 22:16:41,193 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_694f9110-61ed-43b9-87a8-7b1a466835ba/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 22:16:41,194 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_694f9110-61ed-43b9-87a8-7b1a466835ba/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 22:16:41,234 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_694f9110-61ed-43b9-87a8-7b1a466835ba/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 22:16:41,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:16:41,254 INFO L262 TraceCheckSpWp]: Trace formula consists of 30 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-06 22:16:41,255 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:16:41,263 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 22:16:41,263 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:16:41,263 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 22:16:41,264 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1569887687] [2023-11-06 22:16:41,264 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1569887687] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:16:41,264 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:16:41,264 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-06 22:16:41,265 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [147916322] [2023-11-06 22:16:41,265 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:16:41,266 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:16:41,266 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 22:16:41,267 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:16:41,267 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:16:41,267 INFO L87 Difference]: Start difference. First operand 28 states and 31 transitions. Second operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:16:41,283 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:16:41,283 INFO L93 Difference]: Finished difference Result 28 states and 30 transitions. [2023-11-06 22:16:41,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:16:41,284 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2023-11-06 22:16:41,284 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:16:41,285 INFO L225 Difference]: With dead ends: 28 [2023-11-06 22:16:41,285 INFO L226 Difference]: Without dead ends: 28 [2023-11-06 22:16:41,286 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:16:41,287 INFO L413 NwaCegarLoop]: 25 mSDtfsCounter, 27 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 26 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-06 22:16:41,288 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 26 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 22:16:41,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2023-11-06 22:16:41,292 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2023-11-06 22:16:41,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 19 states have (on average 1.5789473684210527) internal successors, (30), 27 states have internal predecessors, (30), 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 22:16:41,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 30 transitions. [2023-11-06 22:16:41,294 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 30 transitions. Word has length 5 [2023-11-06 22:16:41,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:16:41,294 INFO L495 AbstractCegarLoop]: Abstraction has 28 states and 30 transitions. [2023-11-06 22:16:41,294 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:16:41,295 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 30 transitions. [2023-11-06 22:16:41,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-06 22:16:41,295 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:16:41,295 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:16:41,307 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_694f9110-61ed-43b9-87a8-7b1a466835ba/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 22:16:41,507 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_694f9110-61ed-43b9-87a8-7b1a466835ba/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 22:16:41,507 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE (and 6 more)] === [2023-11-06 22:16:41,507 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:16:41,508 INFO L85 PathProgramCache]: Analyzing trace with hash 1806910252, now seen corresponding path program 1 times [2023-11-06 22:16:41,508 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 22:16:41,508 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1706256817] [2023-11-06 22:16:41,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:16:41,509 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 22:16:41,509 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_694f9110-61ed-43b9-87a8-7b1a466835ba/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 22:16:41,568 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_694f9110-61ed-43b9-87a8-7b1a466835ba/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 22:16:41,604 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_694f9110-61ed-43b9-87a8-7b1a466835ba/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 22:16:41,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:16:41,631 INFO L262 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-06 22:16:41,632 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:16:41,670 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 22:16:41,670 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:16:41,671 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 22:16:41,671 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1706256817] [2023-11-06 22:16:41,671 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1706256817] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:16:41,671 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:16:41,671 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-06 22:16:41,672 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [452808842] [2023-11-06 22:16:41,672 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:16:41,672 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:16:41,673 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 22:16:41,673 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:16:41,673 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:16:41,674 INFO L87 Difference]: Start difference. First operand 28 states and 30 transitions. Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 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 22:16:41,738 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:16:41,738 INFO L93 Difference]: Finished difference Result 34 states and 38 transitions. [2023-11-06 22:16:41,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:16:41,739 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 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 7 [2023-11-06 22:16:41,739 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:16:41,740 INFO L225 Difference]: With dead ends: 34 [2023-11-06 22:16:41,740 INFO L226 Difference]: Without dead ends: 34 [2023-11-06 22:16:41,741 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 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 22:16:41,742 INFO L413 NwaCegarLoop]: 29 mSDtfsCounter, 5 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 44 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-06 22:16:41,743 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 44 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-06 22:16:41,744 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2023-11-06 22:16:41,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 30. [2023-11-06 22:16:41,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 21 states have (on average 1.5714285714285714) internal successors, (33), 29 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 22:16:41,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 33 transitions. [2023-11-06 22:16:41,754 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 33 transitions. Word has length 7 [2023-11-06 22:16:41,754 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:16:41,754 INFO L495 AbstractCegarLoop]: Abstraction has 30 states and 33 transitions. [2023-11-06 22:16:41,755 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 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 22:16:41,755 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 33 transitions. [2023-11-06 22:16:41,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-06 22:16:41,757 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:16:41,757 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:16:41,772 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_694f9110-61ed-43b9-87a8-7b1a466835ba/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)] Forceful destruction successful, exit code 0 [2023-11-06 22:16:41,967 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_694f9110-61ed-43b9-87a8-7b1a466835ba/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 22:16:41,968 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE (and 6 more)] === [2023-11-06 22:16:41,968 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:16:41,969 INFO L85 PathProgramCache]: Analyzing trace with hash 179688781, now seen corresponding path program 1 times [2023-11-06 22:16:41,969 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 22:16:41,969 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1146455327] [2023-11-06 22:16:41,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:16:41,970 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 22:16:41,970 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_694f9110-61ed-43b9-87a8-7b1a466835ba/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 22:16:41,972 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_694f9110-61ed-43b9-87a8-7b1a466835ba/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 22:16:41,984 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_694f9110-61ed-43b9-87a8-7b1a466835ba/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 22:16:42,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:16:42,043 INFO L262 TraceCheckSpWp]: Trace formula consists of 54 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-06 22:16:42,045 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:16:42,100 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 22:16:42,100 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:16:42,100 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 22:16:42,100 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1146455327] [2023-11-06 22:16:42,101 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1146455327] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:16:42,101 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:16:42,101 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-06 22:16:42,103 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [250022431] [2023-11-06 22:16:42,103 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:16:42,106 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-06 22:16:42,109 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 22:16:42,109 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-06 22:16:42,110 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-06 22:16:42,110 INFO L87 Difference]: Start difference. First operand 30 states and 33 transitions. Second operand has 5 states, 5 states have (on average 1.6) internal successors, (8), 5 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:16:42,212 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:16:42,212 INFO L93 Difference]: Finished difference Result 38 states and 41 transitions. [2023-11-06 22:16:42,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-06 22:16:42,213 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 1.6) internal successors, (8), 5 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2023-11-06 22:16:42,213 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:16:42,215 INFO L225 Difference]: With dead ends: 38 [2023-11-06 22:16:42,215 INFO L226 Difference]: Without dead ends: 38 [2023-11-06 22:16:42,216 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-11-06 22:16:42,218 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 48 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 67 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-06 22:16:42,220 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 67 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 22:16:42,221 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2023-11-06 22:16:42,229 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 31. [2023-11-06 22:16:42,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 22 states have (on average 1.5454545454545454) internal successors, (34), 30 states have internal predecessors, (34), 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 22:16:42,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 34 transitions. [2023-11-06 22:16:42,230 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 34 transitions. Word has length 8 [2023-11-06 22:16:42,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:16:42,231 INFO L495 AbstractCegarLoop]: Abstraction has 31 states and 34 transitions. [2023-11-06 22:16:42,231 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 1.6) internal successors, (8), 5 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:16:42,231 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 34 transitions. [2023-11-06 22:16:42,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-06 22:16:42,231 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:16:42,232 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:16:42,250 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_694f9110-61ed-43b9-87a8-7b1a466835ba/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 22:16:42,432 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_694f9110-61ed-43b9-87a8-7b1a466835ba/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 22:16:42,432 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE (and 6 more)] === [2023-11-06 22:16:42,433 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:16:42,433 INFO L85 PathProgramCache]: Analyzing trace with hash 179690703, now seen corresponding path program 1 times [2023-11-06 22:16:42,433 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 22:16:42,434 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [377124457] [2023-11-06 22:16:42,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:16:42,434 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 22:16:42,434 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_694f9110-61ed-43b9-87a8-7b1a466835ba/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 22:16:42,435 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_694f9110-61ed-43b9-87a8-7b1a466835ba/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 22:16:42,436 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_694f9110-61ed-43b9-87a8-7b1a466835ba/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 22:16:42,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:16:42,500 INFO L262 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-06 22:16:42,502 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:16:42,548 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 22:16:42,558 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 22:16:42,558 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 22:16:42,574 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 22:16:42,574 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:16:42,575 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 22:16:42,575 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [377124457] [2023-11-06 22:16:42,575 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [377124457] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:16:42,575 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:16:42,576 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-06 22:16:42,576 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1848093663] [2023-11-06 22:16:42,576 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:16:42,576 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-06 22:16:42,577 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 22:16:42,577 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-06 22:16:42,577 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-06 22:16:42,578 INFO L87 Difference]: Start difference. First operand 31 states and 34 transitions. Second operand has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:16:42,676 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:16:42,676 INFO L93 Difference]: Finished difference Result 38 states and 41 transitions. [2023-11-06 22:16:42,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-06 22:16:42,677 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2023-11-06 22:16:42,677 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:16:42,678 INFO L225 Difference]: With dead ends: 38 [2023-11-06 22:16:42,678 INFO L226 Difference]: Without dead ends: 38 [2023-11-06 22:16:42,678 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-06 22:16:42,679 INFO L413 NwaCegarLoop]: 27 mSDtfsCounter, 30 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 47 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-06 22:16:42,680 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 47 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-06 22:16:42,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2023-11-06 22:16:42,682 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 29. [2023-11-06 22:16:42,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 22 states have (on average 1.4545454545454546) internal successors, (32), 28 states have internal predecessors, (32), 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 22:16:42,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 32 transitions. [2023-11-06 22:16:42,683 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 32 transitions. Word has length 8 [2023-11-06 22:16:42,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:16:42,684 INFO L495 AbstractCegarLoop]: Abstraction has 29 states and 32 transitions. [2023-11-06 22:16:42,685 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:16:42,685 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 32 transitions. [2023-11-06 22:16:42,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-06 22:16:42,685 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:16:42,686 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:16:42,705 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_694f9110-61ed-43b9-87a8-7b1a466835ba/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 22:16:42,897 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_694f9110-61ed-43b9-87a8-7b1a466835ba/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 22:16:42,897 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE (and 6 more)] === [2023-11-06 22:16:42,898 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:16:42,898 INFO L85 PathProgramCache]: Analyzing trace with hash 179690704, now seen corresponding path program 1 times [2023-11-06 22:16:42,898 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 22:16:42,898 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2024184083] [2023-11-06 22:16:42,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:16:42,899 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 22:16:42,899 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_694f9110-61ed-43b9-87a8-7b1a466835ba/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 22:16:42,900 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_694f9110-61ed-43b9-87a8-7b1a466835ba/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 22:16:42,904 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_694f9110-61ed-43b9-87a8-7b1a466835ba/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 22:16:43,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:16:43,004 INFO L262 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-06 22:16:43,007 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:16:43,060 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 22:16:43,124 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 22:16:43,124 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:16:43,124 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 22:16:43,124 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2024184083] [2023-11-06 22:16:43,125 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2024184083] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:16:43,125 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:16:43,125 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-06 22:16:43,125 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [67773281] [2023-11-06 22:16:43,126 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:16:43,126 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-06 22:16:43,126 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 22:16:43,127 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-06 22:16:43,127 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-06 22:16:43,127 INFO L87 Difference]: Start difference. First operand 29 states and 32 transitions. Second operand has 6 states, 5 states have (on average 1.6) internal successors, (8), 6 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:16:43,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:16:43,314 INFO L93 Difference]: Finished difference Result 58 states and 61 transitions. [2023-11-06 22:16:43,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-06 22:16:43,315 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 1.6) internal successors, (8), 6 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2023-11-06 22:16:43,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:16:43,316 INFO L225 Difference]: With dead ends: 58 [2023-11-06 22:16:43,316 INFO L226 Difference]: Without dead ends: 58 [2023-11-06 22:16:43,316 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-11-06 22:16:43,317 INFO L413 NwaCegarLoop]: 26 mSDtfsCounter, 43 mSDsluCounter, 67 mSDsCounter, 0 mSdLazyCounter, 77 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 93 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 77 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-06 22:16:43,317 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 93 Invalid, 79 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 77 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-06 22:16:43,318 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2023-11-06 22:16:43,320 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 35. [2023-11-06 22:16:43,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 28 states have (on average 1.4285714285714286) internal successors, (40), 34 states have internal predecessors, (40), 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 22:16:43,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 40 transitions. [2023-11-06 22:16:43,321 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 40 transitions. Word has length 8 [2023-11-06 22:16:43,321 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:16:43,322 INFO L495 AbstractCegarLoop]: Abstraction has 35 states and 40 transitions. [2023-11-06 22:16:43,322 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 1.6) internal successors, (8), 6 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:16:43,322 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 40 transitions. [2023-11-06 22:16:43,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-11-06 22:16:43,322 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:16:43,322 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:16:43,341 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_694f9110-61ed-43b9-87a8-7b1a466835ba/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 22:16:43,536 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_694f9110-61ed-43b9-87a8-7b1a466835ba/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 22:16:43,537 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_FREE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE (and 6 more)] === [2023-11-06 22:16:43,537 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:16:43,537 INFO L85 PathProgramCache]: Analyzing trace with hash 1274213166, now seen corresponding path program 1 times [2023-11-06 22:16:43,537 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 22:16:43,537 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1652293867] [2023-11-06 22:16:43,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:16:43,538 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 22:16:43,538 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_694f9110-61ed-43b9-87a8-7b1a466835ba/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 22:16:43,539 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_694f9110-61ed-43b9-87a8-7b1a466835ba/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 22:16:43,540 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_694f9110-61ed-43b9-87a8-7b1a466835ba/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 22:16:43,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:16:43,588 INFO L262 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-06 22:16:43,590 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:16:43,606 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 22:16:43,606 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:16:43,606 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 22:16:43,606 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1652293867] [2023-11-06 22:16:43,606 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1652293867] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:16:43,607 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:16:43,607 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 22:16:43,607 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1169503692] [2023-11-06 22:16:43,607 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:16:43,607 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:16:43,608 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 22:16:43,608 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:16:43,608 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:16:43,608 INFO L87 Difference]: Start difference. First operand 35 states and 40 transitions. Second operand has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:16:43,616 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:16:43,616 INFO L93 Difference]: Finished difference Result 34 states and 39 transitions. [2023-11-06 22:16:43,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:16:43,617 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2023-11-06 22:16:43,617 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:16:43,618 INFO L225 Difference]: With dead ends: 34 [2023-11-06 22:16:43,618 INFO L226 Difference]: Without dead ends: 34 [2023-11-06 22:16:43,619 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:16:43,620 INFO L413 NwaCegarLoop]: 25 mSDtfsCounter, 19 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 26 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-06 22:16:43,620 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 26 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 22:16:43,621 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2023-11-06 22:16:43,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2023-11-06 22:16:43,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34 states, 28 states have (on average 1.3928571428571428) internal successors, (39), 33 states have internal predecessors, (39), 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 22:16:43,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 39 transitions. [2023-11-06 22:16:43,624 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 39 transitions. Word has length 9 [2023-11-06 22:16:43,625 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:16:43,625 INFO L495 AbstractCegarLoop]: Abstraction has 34 states and 39 transitions. [2023-11-06 22:16:43,625 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:16:43,625 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 39 transitions. [2023-11-06 22:16:43,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-11-06 22:16:43,626 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:16:43,626 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:16:43,642 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_694f9110-61ed-43b9-87a8-7b1a466835ba/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 22:16:43,837 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_694f9110-61ed-43b9-87a8-7b1a466835ba/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 22:16:43,838 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_FREE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE (and 6 more)] === [2023-11-06 22:16:43,838 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:16:43,838 INFO L85 PathProgramCache]: Analyzing trace with hash 845902566, now seen corresponding path program 1 times [2023-11-06 22:16:43,838 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 22:16:43,838 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1786203632] [2023-11-06 22:16:43,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:16:43,838 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 22:16:43,839 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_694f9110-61ed-43b9-87a8-7b1a466835ba/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 22:16:43,839 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_694f9110-61ed-43b9-87a8-7b1a466835ba/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 22:16:43,841 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_694f9110-61ed-43b9-87a8-7b1a466835ba/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 22:16:43,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:16:43,896 INFO L262 TraceCheckSpWp]: Trace formula consists of 44 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-06 22:16:43,897 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:16:43,929 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 22:16:43,930 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:16:43,930 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 22:16:43,930 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1786203632] [2023-11-06 22:16:43,930 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1786203632] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:16:43,930 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:16:43,931 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 22:16:43,931 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1433595058] [2023-11-06 22:16:43,931 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:16:43,931 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:16:43,932 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 22:16:43,932 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:16:43,932 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:16:43,933 INFO L87 Difference]: Start difference. First operand 34 states and 39 transitions. Second operand has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 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 22:16:43,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:16:43,961 INFO L93 Difference]: Finished difference Result 33 states and 38 transitions. [2023-11-06 22:16:43,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:16:43,962 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 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 22:16:43,962 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:16:43,962 INFO L225 Difference]: With dead ends: 33 [2023-11-06 22:16:43,963 INFO L226 Difference]: Without dead ends: 33 [2023-11-06 22:16:43,963 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 8 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 22:16:43,963 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 17 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 18 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-06 22:16:43,964 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 18 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 22:16:43,964 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2023-11-06 22:16:43,965 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2023-11-06 22:16:43,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 28 states have (on average 1.3571428571428572) internal successors, (38), 32 states have internal predecessors, (38), 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 22:16:43,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 38 transitions. [2023-11-06 22:16:43,966 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 38 transitions. Word has length 10 [2023-11-06 22:16:43,966 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:16:43,966 INFO L495 AbstractCegarLoop]: Abstraction has 33 states and 38 transitions. [2023-11-06 22:16:43,966 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 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 22:16:43,967 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 38 transitions. [2023-11-06 22:16:43,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-11-06 22:16:43,967 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:16:43,967 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:16:43,981 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_694f9110-61ed-43b9-87a8-7b1a466835ba/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 22:16:44,167 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_694f9110-61ed-43b9-87a8-7b1a466835ba/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 22:16:44,168 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_FREE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE (and 6 more)] === [2023-11-06 22:16:44,168 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:16:44,168 INFO L85 PathProgramCache]: Analyzing trace with hash 453175856, now seen corresponding path program 1 times [2023-11-06 22:16:44,168 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 22:16:44,169 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1864256459] [2023-11-06 22:16:44,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:16:44,169 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 22:16:44,169 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_694f9110-61ed-43b9-87a8-7b1a466835ba/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 22:16:44,176 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_694f9110-61ed-43b9-87a8-7b1a466835ba/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 22:16:44,177 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_694f9110-61ed-43b9-87a8-7b1a466835ba/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 22:16:44,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:16:44,226 INFO L262 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-06 22:16:44,228 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:16:44,233 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 22:16:44,258 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 22:16:44,259 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:16:44,259 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 22:16:44,259 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1864256459] [2023-11-06 22:16:44,259 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1864256459] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:16:44,259 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:16:44,259 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 22:16:44,260 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1380489040] [2023-11-06 22:16:44,260 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:16:44,260 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:16:44,260 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 22:16:44,261 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:16:44,261 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:16:44,261 INFO L87 Difference]: Start difference. First operand 33 states and 38 transitions. Second operand has 3 states, 2 states have (on average 5.5) 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 22:16:44,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:16:44,295 INFO L93 Difference]: Finished difference Result 38 states and 43 transitions. [2023-11-06 22:16:44,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:16:44,296 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2023-11-06 22:16:44,296 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:16:44,296 INFO L225 Difference]: With dead ends: 38 [2023-11-06 22:16:44,296 INFO L226 Difference]: Without dead ends: 38 [2023-11-06 22:16:44,297 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:16:44,297 INFO L413 NwaCegarLoop]: 22 mSDtfsCounter, 1 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 36 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-06 22:16:44,298 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 36 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 22:16:44,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2023-11-06 22:16:44,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2023-11-06 22:16:44,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38 states, 33 states have (on average 1.303030303030303) internal successors, (43), 37 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:16:44,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 43 transitions. [2023-11-06 22:16:44,302 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 43 transitions. Word has length 11 [2023-11-06 22:16:44,302 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:16:44,302 INFO L495 AbstractCegarLoop]: Abstraction has 38 states and 43 transitions. [2023-11-06 22:16:44,302 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.5) 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 22:16:44,303 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 43 transitions. [2023-11-06 22:16:44,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-11-06 22:16:44,303 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:16:44,303 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:16:44,324 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_694f9110-61ed-43b9-87a8-7b1a466835ba/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 22:16:44,514 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_694f9110-61ed-43b9-87a8-7b1a466835ba/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 22:16:44,515 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE (and 6 more)] === [2023-11-06 22:16:44,515 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:16:44,515 INFO L85 PathProgramCache]: Analyzing trace with hash 1163549737, now seen corresponding path program 1 times [2023-11-06 22:16:44,516 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 22:16:44,516 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [571957999] [2023-11-06 22:16:44,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:16:44,516 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 22:16:44,516 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_694f9110-61ed-43b9-87a8-7b1a466835ba/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 22:16:44,517 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_694f9110-61ed-43b9-87a8-7b1a466835ba/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 22:16:44,522 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_694f9110-61ed-43b9-87a8-7b1a466835ba/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 22:16:44,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:16:44,577 INFO L262 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-06 22:16:44,578 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:16:44,624 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 22:16:44,624 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:16:44,624 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 22:16:44,624 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [571957999] [2023-11-06 22:16:44,625 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [571957999] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:16:44,625 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:16:44,625 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-06 22:16:44,625 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [125417318] [2023-11-06 22:16:44,625 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:16:44,626 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-06 22:16:44,626 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 22:16:44,626 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-06 22:16:44,626 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-06 22:16:44,627 INFO L87 Difference]: Start difference. First operand 38 states and 43 transitions. Second operand has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:16:44,654 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:16:44,654 INFO L93 Difference]: Finished difference Result 32 states and 36 transitions. [2023-11-06 22:16:44,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-06 22:16:44,655 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2023-11-06 22:16:44,656 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:16:44,656 INFO L225 Difference]: With dead ends: 32 [2023-11-06 22:16:44,656 INFO L226 Difference]: Without dead ends: 32 [2023-11-06 22:16:44,657 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 9 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 22:16:44,657 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 23 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 42 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-06 22:16:44,658 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 42 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 22:16:44,658 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2023-11-06 22:16:44,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2023-11-06 22:16:44,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 27 states have (on average 1.3333333333333333) internal successors, (36), 31 states have internal predecessors, (36), 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 22:16:44,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 36 transitions. [2023-11-06 22:16:44,661 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 36 transitions. Word has length 12 [2023-11-06 22:16:44,661 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:16:44,661 INFO L495 AbstractCegarLoop]: Abstraction has 32 states and 36 transitions. [2023-11-06 22:16:44,662 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:16:44,662 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 36 transitions. [2023-11-06 22:16:44,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-11-06 22:16:44,663 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:16:44,663 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:16:44,677 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_694f9110-61ed-43b9-87a8-7b1a466835ba/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 22:16:44,874 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_694f9110-61ed-43b9-87a8-7b1a466835ba/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 22:16:44,874 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_FREE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE (and 6 more)] === [2023-11-06 22:16:44,874 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:16:44,874 INFO L85 PathProgramCache]: Analyzing trace with hash 702945990, now seen corresponding path program 1 times [2023-11-06 22:16:44,875 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 22:16:44,875 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [815404712] [2023-11-06 22:16:44,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:16:44,875 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 22:16:44,875 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_694f9110-61ed-43b9-87a8-7b1a466835ba/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 22:16:44,876 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_694f9110-61ed-43b9-87a8-7b1a466835ba/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 22:16:44,884 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_694f9110-61ed-43b9-87a8-7b1a466835ba/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 22:16:44,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:16:44,962 INFO L262 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-06 22:16:44,963 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:16:45,257 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:16:45,258 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:16:45,258 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 22:16:45,258 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [815404712] [2023-11-06 22:16:45,258 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [815404712] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:16:45,258 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:16:45,259 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-06 22:16:45,259 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [288201924] [2023-11-06 22:16:45,259 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:16:45,259 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-06 22:16:45,260 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 22:16:45,260 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-06 22:16:45,260 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2023-11-06 22:16:45,263 INFO L87 Difference]: Start difference. First operand 32 states and 36 transitions. Second operand has 6 states, 5 states have (on average 2.6) internal successors, (13), 5 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:16:45,385 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:16:45,385 INFO L93 Difference]: Finished difference Result 31 states and 35 transitions. [2023-11-06 22:16:45,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-06 22:16:45,392 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.6) internal successors, (13), 5 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2023-11-06 22:16:45,392 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:16:45,392 INFO L225 Difference]: With dead ends: 31 [2023-11-06 22:16:45,392 INFO L226 Difference]: Without dead ends: 31 [2023-11-06 22:16:45,393 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=22, Unknown=0, NotChecked=0, Total=42 [2023-11-06 22:16:45,393 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 46 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 21 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-06 22:16:45,394 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 21 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-06 22:16:45,394 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2023-11-06 22:16:45,396 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2023-11-06 22:16:45,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 27 states have (on average 1.2962962962962963) internal successors, (35), 30 states have internal predecessors, (35), 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 22:16:45,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 35 transitions. [2023-11-06 22:16:45,397 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 35 transitions. Word has length 13 [2023-11-06 22:16:45,397 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:16:45,397 INFO L495 AbstractCegarLoop]: Abstraction has 31 states and 35 transitions. [2023-11-06 22:16:45,397 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.6) internal successors, (13), 5 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:16:45,397 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 35 transitions. [2023-11-06 22:16:45,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-11-06 22:16:45,398 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:16:45,398 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:16:45,408 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_694f9110-61ed-43b9-87a8-7b1a466835ba/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)] Ended with exit code 0 [2023-11-06 22:16:45,600 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_694f9110-61ed-43b9-87a8-7b1a466835ba/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 22:16:45,601 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE (and 6 more)] === [2023-11-06 22:16:45,601 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:16:45,601 INFO L85 PathProgramCache]: Analyzing trace with hash 702991736, now seen corresponding path program 1 times [2023-11-06 22:16:45,602 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 22:16:45,602 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [721903846] [2023-11-06 22:16:45,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:16:45,602 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 22:16:45,602 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_694f9110-61ed-43b9-87a8-7b1a466835ba/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 22:16:45,603 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_694f9110-61ed-43b9-87a8-7b1a466835ba/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 22:16:45,619 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_694f9110-61ed-43b9-87a8-7b1a466835ba/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 22:16:45,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:16:45,679 INFO L262 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-06 22:16:45,681 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:16:45,718 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:16:45,718 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:16:45,719 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 22:16:45,719 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [721903846] [2023-11-06 22:16:45,719 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [721903846] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:16:45,719 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:16:45,719 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-06 22:16:45,720 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1912027017] [2023-11-06 22:16:45,720 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:16:45,720 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-06 22:16:45,720 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 22:16:45,721 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-06 22:16:45,721 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-06 22:16:45,721 INFO L87 Difference]: Start difference. First operand 31 states and 35 transitions. Second operand has 6 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 6 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:16:45,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:16:45,847 INFO L93 Difference]: Finished difference Result 31 states and 32 transitions. [2023-11-06 22:16:45,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-06 22:16:45,847 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 6 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2023-11-06 22:16:45,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:16:45,848 INFO L225 Difference]: With dead ends: 31 [2023-11-06 22:16:45,848 INFO L226 Difference]: Without dead ends: 31 [2023-11-06 22:16:45,848 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2023-11-06 22:16:45,849 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 41 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 53 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-06 22:16:45,849 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 53 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-06 22:16:45,850 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2023-11-06 22:16:45,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2023-11-06 22:16:45,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 27 states have (on average 1.1851851851851851) internal successors, (32), 30 states have internal predecessors, (32), 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 22:16:45,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 32 transitions. [2023-11-06 22:16:45,852 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 32 transitions. Word has length 13 [2023-11-06 22:16:45,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:16:45,852 INFO L495 AbstractCegarLoop]: Abstraction has 31 states and 32 transitions. [2023-11-06 22:16:45,852 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 6 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:16:45,853 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 32 transitions. [2023-11-06 22:16:45,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-11-06 22:16:45,853 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:16:45,853 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:16:45,870 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_694f9110-61ed-43b9-87a8-7b1a466835ba/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 22:16:46,054 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_694f9110-61ed-43b9-87a8-7b1a466835ba/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 22:16:46,054 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE (and 6 more)] === [2023-11-06 22:16:46,054 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:16:46,054 INFO L85 PathProgramCache]: Analyzing trace with hash 702993658, now seen corresponding path program 1 times [2023-11-06 22:16:46,055 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 22:16:46,055 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [346168844] [2023-11-06 22:16:46,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:16:46,055 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 22:16:46,055 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_694f9110-61ed-43b9-87a8-7b1a466835ba/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 22:16:46,056 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_694f9110-61ed-43b9-87a8-7b1a466835ba/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 22:16:46,061 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_694f9110-61ed-43b9-87a8-7b1a466835ba/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 22:16:46,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:16:46,146 INFO L262 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-06 22:16:46,148 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:16:46,198 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 22:16:46,248 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:16:46,249 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 22:16:46,696 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:16:46,696 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 22:16:46,696 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [346168844] [2023-11-06 22:16:46,696 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [346168844] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-06 22:16:46,697 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-06 22:16:46,697 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 11 [2023-11-06 22:16:46,697 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2081567254] [2023-11-06 22:16:46,697 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-06 22:16:46,697 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-06 22:16:46,697 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 22:16:46,698 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-06 22:16:46,698 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2023-11-06 22:16:46,698 INFO L87 Difference]: Start difference. First operand 31 states and 32 transitions. Second operand has 12 states, 11 states have (on average 2.090909090909091) internal successors, (23), 12 states have internal predecessors, (23), 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 22:16:48,856 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:16:48,856 INFO L93 Difference]: Finished difference Result 112 states and 112 transitions. [2023-11-06 22:16:48,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-11-06 22:16:48,858 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.090909090909091) internal successors, (23), 12 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2023-11-06 22:16:48,859 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:16:48,859 INFO L225 Difference]: With dead ends: 112 [2023-11-06 22:16:48,860 INFO L226 Difference]: Without dead ends: 112 [2023-11-06 22:16:48,860 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 129 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=176, Invalid=580, Unknown=0, NotChecked=0, Total=756 [2023-11-06 22:16:48,861 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 191 mSDsluCounter, 108 mSDsCounter, 0 mSdLazyCounter, 194 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 191 SdHoareTripleChecker+Valid, 127 SdHoareTripleChecker+Invalid, 198 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 194 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-11-06 22:16:48,861 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [191 Valid, 127 Invalid, 198 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 194 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-06 22:16:48,862 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2023-11-06 22:16:48,868 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 49. [2023-11-06 22:16:48,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49 states, 45 states have (on average 1.1777777777777778) internal successors, (53), 48 states have internal predecessors, (53), 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 22:16:48,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 53 transitions. [2023-11-06 22:16:48,875 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 53 transitions. Word has length 13 [2023-11-06 22:16:48,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:16:48,875 INFO L495 AbstractCegarLoop]: Abstraction has 49 states and 53 transitions. [2023-11-06 22:16:48,875 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 2.090909090909091) internal successors, (23), 12 states have internal predecessors, (23), 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 22:16:48,875 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 53 transitions. [2023-11-06 22:16:48,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2023-11-06 22:16:48,895 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:16:48,895 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:16:48,921 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_694f9110-61ed-43b9-87a8-7b1a466835ba/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)] Forceful destruction successful, exit code 0 [2023-11-06 22:16:49,100 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_694f9110-61ed-43b9-87a8-7b1a466835ba/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 22:16:49,100 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_FREE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE (and 6 more)] === [2023-11-06 22:16:49,101 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:16:49,101 INFO L85 PathProgramCache]: Analyzing trace with hash 1949553038, now seen corresponding path program 1 times [2023-11-06 22:16:49,101 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 22:16:49,101 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [922856309] [2023-11-06 22:16:49,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:16:49,102 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 22:16:49,102 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_694f9110-61ed-43b9-87a8-7b1a466835ba/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 22:16:49,108 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_694f9110-61ed-43b9-87a8-7b1a466835ba/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 22:16:49,109 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_694f9110-61ed-43b9-87a8-7b1a466835ba/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 22:16:49,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:16:49,196 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 22:16:49,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:16:49,287 INFO L130 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2023-11-06 22:16:49,287 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-06 22:16:49,288 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_FREE (8 of 9 remaining) [2023-11-06 22:16:49,290 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (7 of 9 remaining) [2023-11-06 22:16:49,290 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 9 remaining) [2023-11-06 22:16:49,290 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE (5 of 9 remaining) [2023-11-06 22:16:49,291 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_FREE (4 of 9 remaining) [2023-11-06 22:16:49,291 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_FREE (3 of 9 remaining) [2023-11-06 22:16:49,291 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_FREE (2 of 9 remaining) [2023-11-06 22:16:49,291 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_FREE (1 of 9 remaining) [2023-11-06 22:16:49,291 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK (0 of 9 remaining) [2023-11-06 22:16:49,300 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_694f9110-61ed-43b9-87a8-7b1a466835ba/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 22:16:49,496 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_694f9110-61ed-43b9-87a8-7b1a466835ba/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 22:16:49,498 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:16:49,501 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-06 22:16:49,537 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.11 10:16:49 BoogieIcfgContainer [2023-11-06 22:16:49,538 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-06 22:16:49,538 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-06 22:16:49,538 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-06 22:16:49,539 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-06 22:16:49,539 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:16:40" (3/4) ... [2023-11-06 22:16:49,540 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2023-11-06 22:16:49,599 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_694f9110-61ed-43b9-87a8-7b1a466835ba/bin/uautomizer-verify-WvqO1wxjHP/witness.graphml.graphml [2023-11-06 22:16:49,599 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-06 22:16:49,600 INFO L158 Benchmark]: Toolchain (without parser) took 10302.92ms. Allocated memory was 81.8MB in the beginning and 98.6MB in the end (delta: 16.8MB). Free memory was 56.5MB in the beginning and 61.1MB in the end (delta: -4.6MB). Peak memory consumption was 14.6MB. Max. memory is 16.1GB. [2023-11-06 22:16:49,600 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 56.6MB. Free memory was 32.3MB in the beginning and 32.2MB in the end (delta: 58.3kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-06 22:16:49,600 INFO L158 Benchmark]: CACSL2BoogieTranslator took 656.03ms. Allocated memory is still 81.8MB. Free memory was 56.3MB in the beginning and 55.3MB in the end (delta: 1.0MB). Peak memory consumption was 18.5MB. Max. memory is 16.1GB. [2023-11-06 22:16:49,601 INFO L158 Benchmark]: Boogie Procedure Inliner took 69.05ms. Allocated memory is still 81.8MB. Free memory was 55.3MB in the beginning and 53.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-06 22:16:49,601 INFO L158 Benchmark]: Boogie Preprocessor took 39.35ms. Allocated memory is still 81.8MB. Free memory was 53.2MB in the beginning and 51.7MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-06 22:16:49,602 INFO L158 Benchmark]: RCFGBuilder took 428.19ms. Allocated memory is still 81.8MB. Free memory was 51.7MB in the beginning and 37.4MB in the end (delta: 14.4MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-11-06 22:16:49,602 INFO L158 Benchmark]: TraceAbstraction took 9040.81ms. Allocated memory was 81.8MB in the beginning and 98.6MB in the end (delta: 16.8MB). Free memory was 36.7MB in the beginning and 64.1MB in the end (delta: -27.4MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-06 22:16:49,603 INFO L158 Benchmark]: Witness Printer took 60.66ms. Allocated memory is still 98.6MB. Free memory was 63.3MB in the beginning and 61.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-06 22:16:49,605 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32ms. Allocated memory is still 56.6MB. Free memory was 32.3MB in the beginning and 32.2MB in the end (delta: 58.3kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 656.03ms. Allocated memory is still 81.8MB. Free memory was 56.3MB in the beginning and 55.3MB in the end (delta: 1.0MB). Peak memory consumption was 18.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 69.05ms. Allocated memory is still 81.8MB. Free memory was 55.3MB in the beginning and 53.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 39.35ms. Allocated memory is still 81.8MB. Free memory was 53.2MB in the beginning and 51.7MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 428.19ms. Allocated memory is still 81.8MB. Free memory was 51.7MB in the beginning and 37.4MB in the end (delta: 14.4MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 9040.81ms. Allocated memory was 81.8MB in the beginning and 98.6MB in the end (delta: 16.8MB). Free memory was 36.7MB in the beginning and 64.1MB in the end (delta: -27.4MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 60.66ms. Allocated memory is still 98.6MB. Free memory was 63.3MB in the beginning and 61.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 538]: free of unallocated memory possible free of unallocated memory possible We found a FailurePath: [L512] int num; [L513] int ind, newsize, i = 1; VAL [i=1, ind=0, newsize=0, num=0] [L528] num = __VERIFIER_nondet_int() [L529] COND FALSE !(!(num > 0 && num < 100)) [L532] int *a = (int *)malloc(sizeof(int)); [L533] COND FALSE !(a == ((void *)0)) [L536] newsize = 0 [L537] CALL expandArray(a) [L515] int *a = (int *)arg; [L516] int *b = ((void *)0); VAL [a={1:0}, arg={1:0}, arg={1:0}, b={0:0}, i=1, ind=0, newsize=0, num=1] [L517] COND TRUE newsize < num [L518] newsize = newsize + 1 [L519] EXPR, FCALL realloc(a, sizeof(int) * newsize) [L519] b = realloc(a, sizeof(int) * newsize) [L520] b[newsize - 1] = i VAL [a={1:0}, arg={1:0}, arg={1:0}, b={1:0}, i=1, ind=0, newsize=1, num=1] [L521] a = b VAL [a={1:0}, arg={1:0}, arg={1:0}, b={1:0}, i=1, ind=0, newsize=1, num=1] [L517] COND FALSE !(newsize < num) VAL [a={1:0}, arg={1:0}, arg={1:0}, b={1:0}, i=1, ind=0, newsize=1, num=1] [L523] COND TRUE b != ((void *)0) VAL [a={1:0}, arg={1:0}, arg={1:0}, b={1:0}, i=1, ind=0, newsize=1, num=1] [L524] free(b) VAL [a={1:0}, arg={1:0}, arg={1:0}, b={1:0}, i=1, ind=0, newsize=1, num=1] [L524] free(b) VAL [a={1:0}, arg={1:0}, arg={1:0}, b={1:0}, i=1, ind=0, newsize=1, num=1] [L524] free(b) [L525] return 0; VAL [\result={0:0}, a={1:0}, arg={1:0}, arg={1:0}, b={1:0}, i=1, ind=0, newsize=1, num=1] [L537] RET expandArray(a) [L538] free(a) VAL [\old(argc)=5, a={1:0}, argc=5, argv={7:6}, argv={7:6}, i=1, ind=0, newsize=1, num=1] [L538] free(a) VAL [\old(argc)=5, a={1:0}, argc=5, argv={7:6}, argv={7:6}, i=1, ind=0, newsize=1, num=1] [L538] free(a) VAL [\old(argc)=5, a={1:0}, argc=5, argv={7:6}, argv={7:6}, i=1, ind=0, newsize=1, num=1] - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 524]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 524]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 524]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 538]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 538]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 527]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 30 locations, 9 error locations. Started 1 CEGAR loops. OverallTime: 8.9s, OverallIterations: 14, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 3.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 493 SdHoareTripleChecker+Valid, 1.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 493 mSDsluCounter, 651 SdHoareTripleChecker+Invalid, 1.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 351 mSDsCounter, 14 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 456 IncrementalHoareTripleChecker+Invalid, 470 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 14 mSolverCounterUnsat, 300 mSDtfsCounter, 456 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 146 GetRequests, 85 SyntacticMatches, 0 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 132 ImplicationChecksByTransitivity, 2.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=49occurred in iteration=13, InterpolantAutomatonStates: 77, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 13 MinimizatonAttempts, 106 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.4s InterpolantComputationTime, 140 NumberOfCodeBlocks, 140 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 120 ConstructedInterpolants, 10 QuantifiedInterpolants, 564 SizeOfPredicates, 19 NumberOfNonLiveVariables, 679 ConjunctsInSsa, 58 ConjunctsInUnsatCore, 14 InterpolantComputations, 12 PerfectInterpolantSequences, 5/13 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2023-11-06 22:16:49,628 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_694f9110-61ed-43b9-87a8-7b1a466835ba/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(valid-free)