./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test5-3.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version cf1a7837 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_bc0d62e1-c990-4f24-a9e9-04265b1fd009/bin/utaipan-verify-NcY6lQBIFX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc0d62e1-c990-4f24-a9e9-04265b1fd009/bin/utaipan-verify-NcY6lQBIFX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc0d62e1-c990-4f24-a9e9-04265b1fd009/bin/utaipan-verify-NcY6lQBIFX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc0d62e1-c990-4f24-a9e9-04265b1fd009/bin/utaipan-verify-NcY6lQBIFX/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test5-3.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc0d62e1-c990-4f24-a9e9-04265b1fd009/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc0d62e1-c990-4f24-a9e9-04265b1fd009/bin/utaipan-verify-NcY6lQBIFX --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 5b724500cddd07446974ec59df8ac86aa980f4ff713324fa73d397377235cbe2 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 00:48:50,775 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 00:48:50,902 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc0d62e1-c990-4f24-a9e9-04265b1fd009/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2023-11-12 00:48:50,913 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 00:48:50,916 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 00:48:50,990 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 00:48:50,991 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 00:48:50,991 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 00:48:50,993 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 00:48:51,010 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 00:48:51,011 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-12 00:48:51,013 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-12 00:48:51,013 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-12 00:48:51,015 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-12 00:48:51,016 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-12 00:48:51,017 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-12 00:48:51,017 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-12 00:48:51,018 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-12 00:48:51,019 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-12 00:48:51,019 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-12 00:48:51,020 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-12 00:48:51,021 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-12 00:48:51,021 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-12 00:48:51,022 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-12 00:48:51,023 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 00:48:51,024 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-12 00:48:51,024 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-12 00:48:51,025 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-12 00:48:51,025 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 00:48:51,026 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-12 00:48:51,028 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-12 00:48:51,028 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-12 00:48:51,028 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 00:48:51,029 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-12 00:48:51,029 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-12 00:48:51,029 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-12 00:48:51,030 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 00:48:51,030 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 00:48:51,031 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 00:48:51,031 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 00:48:51,031 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 00:48:51,032 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 00:48:51,034 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-12 00:48:51,034 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-12 00:48:51,035 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-12 00:48:51,036 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 00:48:51,036 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_bc0d62e1-c990-4f24-a9e9-04265b1fd009/bin/utaipan-verify-NcY6lQBIFX/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc0d62e1-c990-4f24-a9e9-04265b1fd009/bin/utaipan-verify-NcY6lQBIFX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5b724500cddd07446974ec59df8ac86aa980f4ff713324fa73d397377235cbe2 [2023-11-12 00:48:51,338 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 00:48:51,363 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 00:48:51,366 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 00:48:51,367 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 00:48:51,369 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 00:48:51,371 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc0d62e1-c990-4f24-a9e9-04265b1fd009/bin/utaipan-verify-NcY6lQBIFX/../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test5-3.i [2023-11-12 00:48:54,637 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 00:48:55,179 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 00:48:55,180 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc0d62e1-c990-4f24-a9e9-04265b1fd009/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test5-3.i [2023-11-12 00:48:55,218 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc0d62e1-c990-4f24-a9e9-04265b1fd009/bin/utaipan-verify-NcY6lQBIFX/data/9f541fddf/ce94162c55244eae91bc761848b52c7d/FLAG0c3b2ab01 [2023-11-12 00:48:55,238 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc0d62e1-c990-4f24-a9e9-04265b1fd009/bin/utaipan-verify-NcY6lQBIFX/data/9f541fddf/ce94162c55244eae91bc761848b52c7d [2023-11-12 00:48:55,241 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 00:48:55,243 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 00:48:55,245 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 00:48:55,245 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 00:48:55,254 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 00:48:55,255 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:48:55" (1/1) ... [2023-11-12 00:48:55,256 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@507eab43 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:48:55, skipping insertion in model container [2023-11-12 00:48:55,256 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:48:55" (1/1) ... [2023-11-12 00:48:55,360 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 00:48:56,137 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:48:56,152 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) [2023-11-12 00:48:56,154 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@4fc77488 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:48:56, skipping insertion in model container [2023-11-12 00:48:56,154 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 00:48:56,155 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2023-11-12 00:48:56,158 INFO L158 Benchmark]: Toolchain (without parser) took 913.12ms. Allocated memory is still 169.9MB. Free memory was 137.6MB in the beginning and 113.5MB in the end (delta: 24.1MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2023-11-12 00:48:56,158 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 121.6MB. Free memory was 85.9MB in the beginning and 85.7MB in the end (delta: 159.4kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-12 00:48:56,160 INFO L158 Benchmark]: CACSL2BoogieTranslator took 910.23ms. Allocated memory is still 169.9MB. Free memory was 137.6MB in the beginning and 113.5MB in the end (delta: 24.1MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2023-11-12 00:48:56,162 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 121.6MB. Free memory was 85.9MB in the beginning and 85.7MB in the end (delta: 159.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 910.23ms. Allocated memory is still 169.9MB. Free memory was 137.6MB in the beginning and 113.5MB in the end (delta: 24.1MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 737]: 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_bc0d62e1-c990-4f24-a9e9-04265b1fd009/bin/utaipan-verify-NcY6lQBIFX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc0d62e1-c990-4f24-a9e9-04265b1fd009/bin/utaipan-verify-NcY6lQBIFX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc0d62e1-c990-4f24-a9e9-04265b1fd009/bin/utaipan-verify-NcY6lQBIFX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc0d62e1-c990-4f24-a9e9-04265b1fd009/bin/utaipan-verify-NcY6lQBIFX/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test5-3.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc0d62e1-c990-4f24-a9e9-04265b1fd009/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc0d62e1-c990-4f24-a9e9-04265b1fd009/bin/utaipan-verify-NcY6lQBIFX --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 5b724500cddd07446974ec59df8ac86aa980f4ff713324fa73d397377235cbe2 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 00:48:59,020 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 00:48:59,126 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc0d62e1-c990-4f24-a9e9-04265b1fd009/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf [2023-11-12 00:48:59,136 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 00:48:59,137 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 00:48:59,206 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 00:48:59,207 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 00:48:59,208 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 00:48:59,209 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 00:48:59,215 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 00:48:59,216 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-12 00:48:59,217 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-12 00:48:59,217 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-12 00:48:59,219 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-12 00:48:59,220 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-12 00:48:59,220 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-12 00:48:59,221 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-12 00:48:59,222 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-12 00:48:59,223 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 00:48:59,224 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-12 00:48:59,225 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-12 00:48:59,226 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-12 00:48:59,226 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 00:48:59,227 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-12 00:48:59,227 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-12 00:48:59,228 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-12 00:48:59,228 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 00:48:59,229 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-12 00:48:59,229 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-12 00:48:59,230 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-12 00:48:59,232 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-12 00:48:59,232 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-12 00:48:59,233 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 00:48:59,233 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 00:48:59,233 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-12 00:48:59,234 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 00:48:59,235 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 00:48:59,236 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 00:48:59,236 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 00:48:59,236 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-12 00:48:59,237 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-12 00:48:59,237 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-12 00:48:59,237 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 00:48:59,238 INFO L153 SettingsManager]: * Logic for external solver=AUFBV 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_bc0d62e1-c990-4f24-a9e9-04265b1fd009/bin/utaipan-verify-NcY6lQBIFX/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc0d62e1-c990-4f24-a9e9-04265b1fd009/bin/utaipan-verify-NcY6lQBIFX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5b724500cddd07446974ec59df8ac86aa980f4ff713324fa73d397377235cbe2 [2023-11-12 00:48:59,786 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 00:48:59,827 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 00:48:59,831 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 00:48:59,833 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 00:48:59,833 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 00:48:59,835 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc0d62e1-c990-4f24-a9e9-04265b1fd009/bin/utaipan-verify-NcY6lQBIFX/../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test5-3.i [2023-11-12 00:49:03,144 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 00:49:03,695 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 00:49:03,697 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc0d62e1-c990-4f24-a9e9-04265b1fd009/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test5-3.i [2023-11-12 00:49:03,726 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc0d62e1-c990-4f24-a9e9-04265b1fd009/bin/utaipan-verify-NcY6lQBIFX/data/7a90fd489/57d7b0fcae1747ed8b909562c4ec53e6/FLAGdf09b688e [2023-11-12 00:49:03,752 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc0d62e1-c990-4f24-a9e9-04265b1fd009/bin/utaipan-verify-NcY6lQBIFX/data/7a90fd489/57d7b0fcae1747ed8b909562c4ec53e6 [2023-11-12 00:49:03,757 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 00:49:03,760 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 00:49:03,763 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 00:49:03,764 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 00:49:03,770 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 00:49:03,771 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:49:03" (1/1) ... [2023-11-12 00:49:03,772 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@41b3297e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:49:03, skipping insertion in model container [2023-11-12 00:49:03,772 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:49:03" (1/1) ... [2023-11-12 00:49:03,859 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 00:49:04,669 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:49:04,686 INFO L199 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2023-11-12 00:49:04,709 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 00:49:04,930 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:49:04,942 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 00:49:05,067 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:49:05,119 WARN L672 CHandler]: The function memcmp is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:49:05,128 INFO L206 MainTranslator]: Completed translation [2023-11-12 00:49:05,129 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:49:05 WrapperNode [2023-11-12 00:49:05,129 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 00:49:05,130 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 00:49:05,130 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 00:49:05,131 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 00:49:05,140 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:49:05" (1/1) ... [2023-11-12 00:49:05,230 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:49:05" (1/1) ... [2023-11-12 00:49:05,371 INFO L138 Inliner]: procedures = 180, calls = 489, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1732 [2023-11-12 00:49:05,372 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 00:49:05,372 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 00:49:05,373 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 00:49:05,373 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 00:49:05,384 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:49:05" (1/1) ... [2023-11-12 00:49:05,384 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:49:05" (1/1) ... [2023-11-12 00:49:05,397 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:49:05" (1/1) ... [2023-11-12 00:49:05,398 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:49:05" (1/1) ... [2023-11-12 00:49:05,510 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:49:05" (1/1) ... [2023-11-12 00:49:05,545 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:49:05" (1/1) ... [2023-11-12 00:49:05,555 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:49:05" (1/1) ... [2023-11-12 00:49:05,578 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:49:05" (1/1) ... [2023-11-12 00:49:05,612 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 00:49:05,614 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 00:49:05,615 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 00:49:05,615 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 00:49:05,616 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:49:05" (1/1) ... [2023-11-12 00:49:05,624 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 00:49:05,638 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc0d62e1-c990-4f24-a9e9-04265b1fd009/bin/utaipan-verify-NcY6lQBIFX/z3 [2023-11-12 00:49:05,656 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc0d62e1-c990-4f24-a9e9-04265b1fd009/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-12 00:49:05,692 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc0d62e1-c990-4f24-a9e9-04265b1fd009/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-12 00:49:05,711 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-11-12 00:49:05,711 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-11-12 00:49:05,711 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2023-11-12 00:49:05,712 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2023-11-12 00:49:05,712 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-12 00:49:05,712 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-12 00:49:05,712 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2023-11-12 00:49:05,712 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2023-11-12 00:49:05,714 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-12 00:49:05,714 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 00:49:05,715 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-12 00:49:05,715 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-12 00:49:05,715 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2023-11-12 00:49:05,715 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-12 00:49:05,715 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-12 00:49:05,716 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2023-11-12 00:49:05,716 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-12 00:49:05,717 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 00:49:05,717 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 00:49:06,065 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 00:49:06,067 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 00:49:06,112 WARN L817 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2023-11-12 00:49:16,161 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 00:49:16,182 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 00:49:16,182 INFO L302 CfgBuilder]: Removed 100 assume(true) statements. [2023-11-12 00:49:16,188 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:49:16 BoogieIcfgContainer [2023-11-12 00:49:16,189 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 00:49:16,191 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-12 00:49:16,192 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-12 00:49:16,196 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-12 00:49:16,196 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 12:49:03" (1/3) ... [2023-11-12 00:49:16,197 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@799104d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:49:16, skipping insertion in model container [2023-11-12 00:49:16,197 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:49:05" (2/3) ... [2023-11-12 00:49:16,198 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@799104d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:49:16, skipping insertion in model container [2023-11-12 00:49:16,198 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:49:16" (3/3) ... [2023-11-12 00:49:16,199 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_BER_test5-3.i [2023-11-12 00:49:16,223 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-12 00:49:16,223 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 931 error locations. [2023-11-12 00:49:16,315 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-12 00:49:16,368 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=FINITE_AUTOMATA, 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;@44fd9144, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-12 00:49:16,371 INFO L358 AbstractCegarLoop]: Starting to check reachability of 931 error locations. [2023-11-12 00:49:16,381 INFO L276 IsEmpty]: Start isEmpty. Operand has 1849 states, 907 states have (on average 2.2425578831312016) internal successors, (2034), 1839 states have internal predecessors, (2034), 13 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (13), 9 states have call predecessors, (13), 13 states have call successors, (13) [2023-11-12 00:49:16,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-11-12 00:49:16,388 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:49:16,389 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2023-11-12 00:49:16,390 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 928 more)] === [2023-11-12 00:49:16,396 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:49:16,397 INFO L85 PathProgramCache]: Analyzing trace with hash 45876316, now seen corresponding path program 1 times [2023-11-12 00:49:16,417 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-12 00:49:16,418 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [139636581] [2023-11-12 00:49:16,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:49:16,419 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-12 00:49:16,419 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc0d62e1-c990-4f24-a9e9-04265b1fd009/bin/utaipan-verify-NcY6lQBIFX/mathsat [2023-11-12 00:49:16,425 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc0d62e1-c990-4f24-a9e9-04265b1fd009/bin/utaipan-verify-NcY6lQBIFX/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) [2023-11-12 00:49:16,446 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc0d62e1-c990-4f24-a9e9-04265b1fd009/bin/utaipan-verify-NcY6lQBIFX/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 [2023-11-12 00:49:16,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:49:16,702 INFO L262 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-12 00:49:16,711 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 00:49:16,790 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 [2023-11-12 00:49:16,813 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 00:49:16,813 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 00:49:16,814 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-12 00:49:16,814 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [139636581] [2023-11-12 00:49:16,815 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [139636581] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:49:16,815 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:49:16,816 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-12 00:49:16,818 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [790453339] [2023-11-12 00:49:16,819 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:49:16,827 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 00:49:16,827 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-12 00:49:16,867 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 00:49:16,868 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 00:49:16,874 INFO L87 Difference]: Start difference. First operand has 1849 states, 907 states have (on average 2.2425578831312016) internal successors, (2034), 1839 states have internal predecessors, (2034), 13 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (13), 9 states have call predecessors, (13), 13 states have call successors, (13) Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 00:49:21,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:49:21,719 INFO L93 Difference]: Finished difference Result 2094 states and 2239 transitions. [2023-11-12 00:49:21,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 00:49:21,721 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2023-11-12 00:49:21,722 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:49:21,760 INFO L225 Difference]: With dead ends: 2094 [2023-11-12 00:49:21,760 INFO L226 Difference]: Without dead ends: 2092 [2023-11-12 00:49:21,761 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 [2023-11-12 00:49:21,766 INFO L413 NwaCegarLoop]: 1370 mSDtfsCounter, 1375 mSDsluCounter, 472 mSDsCounter, 0 mSdLazyCounter, 1087 mSolverCounterSat, 102 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1386 SdHoareTripleChecker+Valid, 1842 SdHoareTripleChecker+Invalid, 1189 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 102 IncrementalHoareTripleChecker+Valid, 1087 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2023-11-12 00:49:21,767 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1386 Valid, 1842 Invalid, 1189 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [102 Valid, 1087 Invalid, 0 Unknown, 0 Unchecked, 4.7s Time] [2023-11-12 00:49:21,796 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2092 states. [2023-11-12 00:49:21,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2092 to 1816. [2023-11-12 00:49:21,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1816 states, 977 states have (on average 1.9979529170931423) internal successors, (1952), 1806 states have internal predecessors, (1952), 13 states have call successors, (13), 3 states have call predecessors, (13), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2023-11-12 00:49:21,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1816 states to 1816 states and 1976 transitions. [2023-11-12 00:49:21,943 INFO L78 Accepts]: Start accepts. Automaton has 1816 states and 1976 transitions. Word has length 5 [2023-11-12 00:49:21,943 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:49:21,943 INFO L495 AbstractCegarLoop]: Abstraction has 1816 states and 1976 transitions. [2023-11-12 00:49:21,944 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 00:49:21,944 INFO L276 IsEmpty]: Start isEmpty. Operand 1816 states and 1976 transitions. [2023-11-12 00:49:21,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-11-12 00:49:21,945 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:49:21,945 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2023-11-12 00:49:21,963 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc0d62e1-c990-4f24-a9e9-04265b1fd009/bin/utaipan-verify-NcY6lQBIFX/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)] Ended with exit code 0 [2023-11-12 00:49:22,158 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc0d62e1-c990-4f24-a9e9-04265b1fd009/bin/utaipan-verify-NcY6lQBIFX/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 [2023-11-12 00:49:22,159 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 928 more)] === [2023-11-12 00:49:22,160 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:49:22,160 INFO L85 PathProgramCache]: Analyzing trace with hash 45876317, now seen corresponding path program 1 times [2023-11-12 00:49:22,160 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-12 00:49:22,161 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2073290732] [2023-11-12 00:49:22,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:49:22,161 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 [2023-11-12 00:49:22,161 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc0d62e1-c990-4f24-a9e9-04265b1fd009/bin/utaipan-verify-NcY6lQBIFX/mathsat [2023-11-12 00:49:22,163 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc0d62e1-c990-4f24-a9e9-04265b1fd009/bin/utaipan-verify-NcY6lQBIFX/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) [2023-11-12 00:49:22,169 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc0d62e1-c990-4f24-a9e9-04265b1fd009/bin/utaipan-verify-NcY6lQBIFX/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 [2023-11-12 00:49:22,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:49:22,451 INFO L262 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-12 00:49:22,459 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 00:49:22,478 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 [2023-11-12 00:49:22,511 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 00:49:22,512 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 00:49:22,512 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-12 00:49:22,518 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2073290732] [2023-11-12 00:49:22,518 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2073290732] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:49:22,520 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:49:22,521 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-12 00:49:22,522 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1299266001] [2023-11-12 00:49:22,522 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:49:22,523 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 00:49:22,524 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-12 00:49:22,525 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 00:49:22,525 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 00:49:22,526 INFO L87 Difference]: Start difference. First operand 1816 states and 1976 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 00:49:29,341 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:49:29,341 INFO L93 Difference]: Finished difference Result 2345 states and 2556 transitions. [2023-11-12 00:49:29,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 00:49:29,342 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2023-11-12 00:49:29,342 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:49:29,355 INFO L225 Difference]: With dead ends: 2345 [2023-11-12 00:49:29,355 INFO L226 Difference]: Without dead ends: 2345 [2023-11-12 00:49:29,355 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 [2023-11-12 00:49:29,357 INFO L413 NwaCegarLoop]: 1761 mSDtfsCounter, 751 mSDsluCounter, 814 mSDsCounter, 0 mSdLazyCounter, 1159 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 756 SdHoareTripleChecker+Valid, 2575 SdHoareTripleChecker+Invalid, 1182 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 1159 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.7s IncrementalHoareTripleChecker+Time [2023-11-12 00:49:29,357 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [756 Valid, 2575 Invalid, 1182 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 1159 Invalid, 0 Unknown, 0 Unchecked, 6.7s Time] [2023-11-12 00:49:29,363 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2345 states. [2023-11-12 00:49:29,401 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2345 to 1976. [2023-11-12 00:49:29,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1976 states, 1147 states have (on average 1.972101133391456) internal successors, (2262), 1966 states have internal predecessors, (2262), 13 states have call successors, (13), 3 states have call predecessors, (13), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2023-11-12 00:49:29,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1976 states to 1976 states and 2286 transitions. [2023-11-12 00:49:29,415 INFO L78 Accepts]: Start accepts. Automaton has 1976 states and 2286 transitions. Word has length 5 [2023-11-12 00:49:29,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:49:29,416 INFO L495 AbstractCegarLoop]: Abstraction has 1976 states and 2286 transitions. [2023-11-12 00:49:29,416 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 00:49:29,416 INFO L276 IsEmpty]: Start isEmpty. Operand 1976 states and 2286 transitions. [2023-11-12 00:49:29,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-12 00:49:29,417 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:49:29,417 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2023-11-12 00:49:29,431 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc0d62e1-c990-4f24-a9e9-04265b1fd009/bin/utaipan-verify-NcY6lQBIFX/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 [2023-11-12 00:49:29,622 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc0d62e1-c990-4f24-a9e9-04265b1fd009/bin/utaipan-verify-NcY6lQBIFX/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 [2023-11-12 00:49:29,623 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr640REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 928 more)] === [2023-11-12 00:49:29,623 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:49:29,623 INFO L85 PathProgramCache]: Analyzing trace with hash 1423857071, now seen corresponding path program 1 times [2023-11-12 00:49:29,624 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-12 00:49:29,624 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2084058499] [2023-11-12 00:49:29,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:49:29,624 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 [2023-11-12 00:49:29,625 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc0d62e1-c990-4f24-a9e9-04265b1fd009/bin/utaipan-verify-NcY6lQBIFX/mathsat [2023-11-12 00:49:29,626 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc0d62e1-c990-4f24-a9e9-04265b1fd009/bin/utaipan-verify-NcY6lQBIFX/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) [2023-11-12 00:49:29,633 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc0d62e1-c990-4f24-a9e9-04265b1fd009/bin/utaipan-verify-NcY6lQBIFX/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 [2023-11-12 00:49:29,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:49:29,794 INFO L262 TraceCheckSpWp]: Trace formula consists of 30 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-12 00:49:29,797 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 00:49:29,810 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 00:49:29,810 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 00:49:29,810 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-12 00:49:29,814 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2084058499] [2023-11-12 00:49:29,818 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2084058499] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:49:29,818 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:49:29,818 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-12 00:49:29,818 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [519487775] [2023-11-12 00:49:29,819 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:49:29,819 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 00:49:29,819 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-12 00:49:29,820 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 00:49:29,821 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 00:49:29,821 INFO L87 Difference]: Start difference. First operand 1976 states and 2286 transitions. Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 00:49:30,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:49:30,006 INFO L93 Difference]: Finished difference Result 3552 states and 4153 transitions. [2023-11-12 00:49:30,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 00:49:30,010 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2023-11-12 00:49:30,010 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:49:30,029 INFO L225 Difference]: With dead ends: 3552 [2023-11-12 00:49:30,029 INFO L226 Difference]: Without dead ends: 3552 [2023-11-12 00:49:30,030 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 00:49:30,034 INFO L413 NwaCegarLoop]: 2317 mSDtfsCounter, 1383 mSDsluCounter, 1817 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1394 SdHoareTripleChecker+Valid, 4134 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-12 00:49:30,036 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1394 Valid, 4134 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-12 00:49:30,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3552 states. [2023-11-12 00:49:30,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3552 to 1978. [2023-11-12 00:49:30,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1978 states, 1149 states have (on average 1.9704090513489991) internal successors, (2264), 1968 states have internal predecessors, (2264), 13 states have call successors, (13), 3 states have call predecessors, (13), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2023-11-12 00:49:30,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1978 states to 1978 states and 2288 transitions. [2023-11-12 00:49:30,133 INFO L78 Accepts]: Start accepts. Automaton has 1978 states and 2288 transitions. Word has length 6 [2023-11-12 00:49:30,133 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:49:30,133 INFO L495 AbstractCegarLoop]: Abstraction has 1978 states and 2288 transitions. [2023-11-12 00:49:30,133 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 00:49:30,133 INFO L276 IsEmpty]: Start isEmpty. Operand 1978 states and 2288 transitions. [2023-11-12 00:49:30,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-11-12 00:49:30,134 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:49:30,134 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 00:49:30,155 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc0d62e1-c990-4f24-a9e9-04265b1fd009/bin/utaipan-verify-NcY6lQBIFX/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 [2023-11-12 00:49:30,345 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc0d62e1-c990-4f24-a9e9-04265b1fd009/bin/utaipan-verify-NcY6lQBIFX/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 [2023-11-12 00:49:30,345 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 928 more)] === [2023-11-12 00:49:30,346 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:49:30,346 INFO L85 PathProgramCache]: Analyzing trace with hash -1344610650, now seen corresponding path program 1 times [2023-11-12 00:49:30,347 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-12 00:49:30,347 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [453236815] [2023-11-12 00:49:30,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:49:30,347 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 [2023-11-12 00:49:30,347 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc0d62e1-c990-4f24-a9e9-04265b1fd009/bin/utaipan-verify-NcY6lQBIFX/mathsat [2023-11-12 00:49:30,348 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc0d62e1-c990-4f24-a9e9-04265b1fd009/bin/utaipan-verify-NcY6lQBIFX/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) [2023-11-12 00:49:30,350 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc0d62e1-c990-4f24-a9e9-04265b1fd009/bin/utaipan-verify-NcY6lQBIFX/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 [2023-11-12 00:49:30,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:49:30,573 INFO L262 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-12 00:49:30,577 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 00:49:30,588 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 00:49:30,588 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 00:49:30,588 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-12 00:49:30,589 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [453236815] [2023-11-12 00:49:30,589 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [453236815] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:49:30,589 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:49:30,589 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-12 00:49:30,590 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [24086935] [2023-11-12 00:49:30,590 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:49:30,590 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 00:49:30,590 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-12 00:49:30,591 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 00:49:30,591 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 00:49:30,591 INFO L87 Difference]: Start difference. First operand 1978 states and 2288 transitions. Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 00:49:30,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:49:30,648 INFO L93 Difference]: Finished difference Result 1936 states and 2245 transitions. [2023-11-12 00:49:30,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 00:49:30,649 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2023-11-12 00:49:30,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:49:30,660 INFO L225 Difference]: With dead ends: 1936 [2023-11-12 00:49:30,661 INFO L226 Difference]: Without dead ends: 1936 [2023-11-12 00:49:30,661 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 [2023-11-12 00:49:30,662 INFO L413 NwaCegarLoop]: 1772 mSDtfsCounter, 81 mSDsluCounter, 1700 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 3472 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 [2023-11-12 00:49:30,663 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [81 Valid, 3472 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-12 00:49:30,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1936 states. [2023-11-12 00:49:30,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1936 to 1936. [2023-11-12 00:49:30,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1936 states, 1131 states have (on average 1.9637488947833774) internal successors, (2221), 1926 states have internal predecessors, (2221), 13 states have call successors, (13), 3 states have call predecessors, (13), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2023-11-12 00:49:30,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1936 states to 1936 states and 2245 transitions. [2023-11-12 00:49:30,714 INFO L78 Accepts]: Start accepts. Automaton has 1936 states and 2245 transitions. Word has length 11 [2023-11-12 00:49:30,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:49:30,715 INFO L495 AbstractCegarLoop]: Abstraction has 1936 states and 2245 transitions. [2023-11-12 00:49:30,715 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 00:49:30,715 INFO L276 IsEmpty]: Start isEmpty. Operand 1936 states and 2245 transitions. [2023-11-12 00:49:30,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-11-12 00:49:30,716 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:49:30,716 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 00:49:30,733 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc0d62e1-c990-4f24-a9e9-04265b1fd009/bin/utaipan-verify-NcY6lQBIFX/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 [2023-11-12 00:49:30,928 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc0d62e1-c990-4f24-a9e9-04265b1fd009/bin/utaipan-verify-NcY6lQBIFX/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 [2023-11-12 00:49:30,928 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr28REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 928 more)] === [2023-11-12 00:49:30,929 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:49:30,929 INFO L85 PathProgramCache]: Analyzing trace with hash 614317568, now seen corresponding path program 1 times [2023-11-12 00:49:30,930 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-12 00:49:30,930 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [176489847] [2023-11-12 00:49:30,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:49:30,931 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 [2023-11-12 00:49:30,931 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc0d62e1-c990-4f24-a9e9-04265b1fd009/bin/utaipan-verify-NcY6lQBIFX/mathsat [2023-11-12 00:49:30,932 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc0d62e1-c990-4f24-a9e9-04265b1fd009/bin/utaipan-verify-NcY6lQBIFX/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) [2023-11-12 00:49:30,971 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc0d62e1-c990-4f24-a9e9-04265b1fd009/bin/utaipan-verify-NcY6lQBIFX/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 [2023-11-12 00:49:31,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:49:31,149 INFO L262 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-12 00:49:31,153 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 00:49:31,174 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 00:49:31,174 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 00:49:31,175 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-12 00:49:31,175 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [176489847] [2023-11-12 00:49:31,175 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [176489847] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:49:31,175 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:49:31,175 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-12 00:49:31,176 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2119507292] [2023-11-12 00:49:31,176 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:49:31,176 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-12 00:49:31,176 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-12 00:49:31,177 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-12 00:49:31,177 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-12 00:49:31,177 INFO L87 Difference]: Start difference. First operand 1936 states and 2245 transitions. Second operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 00:49:31,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:49:31,295 INFO L93 Difference]: Finished difference Result 1915 states and 2217 transitions. [2023-11-12 00:49:31,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-12 00:49:31,296 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2023-11-12 00:49:31,296 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:49:31,307 INFO L225 Difference]: With dead ends: 1915 [2023-11-12 00:49:31,307 INFO L226 Difference]: Without dead ends: 1915 [2023-11-12 00:49:31,308 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-12 00:49:31,309 INFO L413 NwaCegarLoop]: 1727 mSDtfsCounter, 62 mSDsluCounter, 3420 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 5147 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-12 00:49:31,309 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 5147 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-12 00:49:31,314 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1915 states. [2023-11-12 00:49:31,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1915 to 1914. [2023-11-12 00:49:31,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1914 states, 1123 states have (on average 1.9519145146927872) internal successors, (2192), 1904 states have internal predecessors, (2192), 13 states have call successors, (13), 3 states have call predecessors, (13), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2023-11-12 00:49:31,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1914 states to 1914 states and 2216 transitions. [2023-11-12 00:49:31,363 INFO L78 Accepts]: Start accepts. Automaton has 1914 states and 2216 transitions. Word has length 13 [2023-11-12 00:49:31,364 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:49:31,364 INFO L495 AbstractCegarLoop]: Abstraction has 1914 states and 2216 transitions. [2023-11-12 00:49:31,395 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 00:49:31,395 INFO L276 IsEmpty]: Start isEmpty. Operand 1914 states and 2216 transitions. [2023-11-12 00:49:31,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2023-11-12 00:49:31,396 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:49:31,396 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 00:49:31,415 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc0d62e1-c990-4f24-a9e9-04265b1fd009/bin/utaipan-verify-NcY6lQBIFX/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 [2023-11-12 00:49:31,603 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc0d62e1-c990-4f24-a9e9-04265b1fd009/bin/utaipan-verify-NcY6lQBIFX/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 [2023-11-12 00:49:31,604 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr42REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 928 more)] === [2023-11-12 00:49:31,604 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:49:31,604 INFO L85 PathProgramCache]: Analyzing trace with hash -957630610, now seen corresponding path program 1 times [2023-11-12 00:49:31,604 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-12 00:49:31,605 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [407533288] [2023-11-12 00:49:31,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:49:31,605 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 [2023-11-12 00:49:31,605 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc0d62e1-c990-4f24-a9e9-04265b1fd009/bin/utaipan-verify-NcY6lQBIFX/mathsat [2023-11-12 00:49:31,607 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc0d62e1-c990-4f24-a9e9-04265b1fd009/bin/utaipan-verify-NcY6lQBIFX/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) [2023-11-12 00:49:31,630 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc0d62e1-c990-4f24-a9e9-04265b1fd009/bin/utaipan-verify-NcY6lQBIFX/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 [2023-11-12 00:49:31,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:49:31,834 INFO L262 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-12 00:49:31,838 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 00:49:31,846 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 [2023-11-12 00:49:31,941 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 00:49:31,942 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 00:49:31,942 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-12 00:49:31,942 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [407533288] [2023-11-12 00:49:31,942 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [407533288] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:49:31,943 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:49:31,943 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-12 00:49:31,943 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [840565224] [2023-11-12 00:49:31,943 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:49:31,943 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-12 00:49:31,943 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-12 00:49:31,944 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-12 00:49:31,945 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-12 00:49:31,945 INFO L87 Difference]: Start difference. First operand 1914 states and 2216 transitions. Second operand has 4 states, 3 states have (on average 9.0) internal successors, (27), 4 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 00:49:37,014 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:49:37,015 INFO L93 Difference]: Finished difference Result 2187 states and 2474 transitions. [2023-11-12 00:49:37,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-12 00:49:37,015 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 9.0) internal successors, (27), 4 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 27 [2023-11-12 00:49:37,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:49:37,027 INFO L225 Difference]: With dead ends: 2187 [2023-11-12 00:49:37,027 INFO L226 Difference]: Without dead ends: 2187 [2023-11-12 00:49:37,027 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-12 00:49:37,028 INFO L413 NwaCegarLoop]: 1074 mSDtfsCounter, 1304 mSDsluCounter, 1272 mSDsCounter, 0 mSdLazyCounter, 1933 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1315 SdHoareTripleChecker+Valid, 2346 SdHoareTripleChecker+Invalid, 1947 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 1933 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2023-11-12 00:49:37,028 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1315 Valid, 2346 Invalid, 1947 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 1933 Invalid, 0 Unknown, 0 Unchecked, 5.0s Time] [2023-11-12 00:49:37,038 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2187 states. [2023-11-12 00:49:37,068 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2187 to 1910. [2023-11-12 00:49:37,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1910 states, 1123 states have (on average 1.9483526268922529) internal successors, (2188), 1900 states have internal predecessors, (2188), 13 states have call successors, (13), 3 states have call predecessors, (13), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2023-11-12 00:49:37,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1910 states to 1910 states and 2212 transitions. [2023-11-12 00:49:37,079 INFO L78 Accepts]: Start accepts. Automaton has 1910 states and 2212 transitions. Word has length 27 [2023-11-12 00:49:37,079 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:49:37,079 INFO L495 AbstractCegarLoop]: Abstraction has 1910 states and 2212 transitions. [2023-11-12 00:49:37,079 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 9.0) internal successors, (27), 4 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 00:49:37,080 INFO L276 IsEmpty]: Start isEmpty. Operand 1910 states and 2212 transitions. [2023-11-12 00:49:37,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2023-11-12 00:49:37,081 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:49:37,081 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 00:49:37,098 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc0d62e1-c990-4f24-a9e9-04265b1fd009/bin/utaipan-verify-NcY6lQBIFX/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 [2023-11-12 00:49:37,293 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc0d62e1-c990-4f24-a9e9-04265b1fd009/bin/utaipan-verify-NcY6lQBIFX/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 [2023-11-12 00:49:37,293 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr43REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 928 more)] === [2023-11-12 00:49:37,294 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:49:37,294 INFO L85 PathProgramCache]: Analyzing trace with hash -957630609, now seen corresponding path program 1 times [2023-11-12 00:49:37,294 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-12 00:49:37,294 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [729760553] [2023-11-12 00:49:37,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:49:37,294 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 [2023-11-12 00:49:37,295 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc0d62e1-c990-4f24-a9e9-04265b1fd009/bin/utaipan-verify-NcY6lQBIFX/mathsat [2023-11-12 00:49:37,296 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc0d62e1-c990-4f24-a9e9-04265b1fd009/bin/utaipan-verify-NcY6lQBIFX/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) [2023-11-12 00:49:37,299 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc0d62e1-c990-4f24-a9e9-04265b1fd009/bin/utaipan-verify-NcY6lQBIFX/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 [2023-11-12 00:49:37,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:49:37,515 INFO L262 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-12 00:49:37,519 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 00:49:37,535 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 [2023-11-12 00:49:37,790 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 00:49:37,791 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 00:49:37,791 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-12 00:49:37,791 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [729760553] [2023-11-12 00:49:37,791 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [729760553] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:49:37,791 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:49:37,792 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-12 00:49:37,792 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1075357815] [2023-11-12 00:49:37,792 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:49:37,792 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-12 00:49:37,793 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-12 00:49:37,793 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-12 00:49:37,793 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-12 00:49:37,794 INFO L87 Difference]: Start difference. First operand 1910 states and 2212 transitions. Second operand has 4 states, 3 states have (on average 9.0) internal successors, (27), 4 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)