./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/ddv-machzwd/ddv_machzwd_inl.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version dbf71c69 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41dba0ce-c1fc-4818-9d18-3d6c8ac144b2/bin/uautomizer-J5u9QxTXDZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41dba0ce-c1fc-4818-9d18-3d6c8ac144b2/bin/uautomizer-J5u9QxTXDZ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41dba0ce-c1fc-4818-9d18-3d6c8ac144b2/bin/uautomizer-J5u9QxTXDZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41dba0ce-c1fc-4818-9d18-3d6c8ac144b2/bin/uautomizer-J5u9QxTXDZ/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ddv-machzwd/ddv_machzwd_inl.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41dba0ce-c1fc-4818-9d18-3d6c8ac144b2/bin/uautomizer-J5u9QxTXDZ/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41dba0ce-c1fc-4818-9d18-3d6c8ac144b2/bin/uautomizer-J5u9QxTXDZ --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 6e9935ba6b05a3c7e4f0c65d8e33bc471835cb8eb350ac893c3dd9a00ab8c4f5 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-dbf71c6-m [2022-10-17 10:12:10,091 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-17 10:12:10,094 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-17 10:12:10,142 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-17 10:12:10,143 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-17 10:12:10,147 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-17 10:12:10,149 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-17 10:12:10,154 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-17 10:12:10,157 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-17 10:12:10,162 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-17 10:12:10,163 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-17 10:12:10,166 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-17 10:12:10,166 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-17 10:12:10,169 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-17 10:12:10,170 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-17 10:12:10,172 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-17 10:12:10,174 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-17 10:12:10,175 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-17 10:12:10,177 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-17 10:12:10,184 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-17 10:12:10,186 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-17 10:12:10,187 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-17 10:12:10,190 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-17 10:12:10,191 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-17 10:12:10,201 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-17 10:12:10,202 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-17 10:12:10,202 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-17 10:12:10,204 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-17 10:12:10,205 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-17 10:12:10,206 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-17 10:12:10,206 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-17 10:12:10,208 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-17 10:12:10,211 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-17 10:12:10,212 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-17 10:12:10,213 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-17 10:12:10,213 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-17 10:12:10,214 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-17 10:12:10,214 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-17 10:12:10,214 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-17 10:12:10,215 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-17 10:12:10,216 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-17 10:12:10,217 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41dba0ce-c1fc-4818-9d18-3d6c8ac144b2/bin/uautomizer-J5u9QxTXDZ/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2022-10-17 10:12:10,257 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-17 10:12:10,257 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-17 10:12:10,258 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-17 10:12:10,258 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-17 10:12:10,259 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-17 10:12:10,259 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-17 10:12:10,260 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-17 10:12:10,260 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-17 10:12:10,261 INFO L138 SettingsManager]: * Use SBE=true [2022-10-17 10:12:10,261 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-17 10:12:10,262 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-17 10:12:10,263 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-17 10:12:10,263 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-17 10:12:10,263 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-17 10:12:10,263 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-17 10:12:10,264 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-10-17 10:12:10,264 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-10-17 10:12:10,264 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-10-17 10:12:10,265 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-17 10:12:10,265 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-10-17 10:12:10,265 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-17 10:12:10,265 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-17 10:12:10,266 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-17 10:12:10,266 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-17 10:12:10,266 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-17 10:12:10,267 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-17 10:12:10,267 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-17 10:12:10,267 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-17 10:12:10,268 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-17 10:12:10,268 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-17 10:12:10,269 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_41dba0ce-c1fc-4818-9d18-3d6c8ac144b2/bin/uautomizer-J5u9QxTXDZ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41dba0ce-c1fc-4818-9d18-3d6c8ac144b2/bin/uautomizer-J5u9QxTXDZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6e9935ba6b05a3c7e4f0c65d8e33bc471835cb8eb350ac893c3dd9a00ab8c4f5 [2022-10-17 10:12:10,565 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-17 10:12:10,590 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-17 10:12:10,593 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-17 10:12:10,595 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-17 10:12:10,596 INFO L275 PluginConnector]: CDTParser initialized [2022-10-17 10:12:10,598 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41dba0ce-c1fc-4818-9d18-3d6c8ac144b2/bin/uautomizer-J5u9QxTXDZ/../../sv-benchmarks/c/ddv-machzwd/ddv_machzwd_inl.i [2022-10-17 10:12:10,669 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41dba0ce-c1fc-4818-9d18-3d6c8ac144b2/bin/uautomizer-J5u9QxTXDZ/data/41b863f46/b9b87cfdf5014b4d8ade6aadd5a4c2c4/FLAG61aa0a82a [2022-10-17 10:12:11,387 INFO L306 CDTParser]: Found 1 translation units. [2022-10-17 10:12:11,388 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41dba0ce-c1fc-4818-9d18-3d6c8ac144b2/sv-benchmarks/c/ddv-machzwd/ddv_machzwd_inl.i [2022-10-17 10:12:11,424 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41dba0ce-c1fc-4818-9d18-3d6c8ac144b2/bin/uautomizer-J5u9QxTXDZ/data/41b863f46/b9b87cfdf5014b4d8ade6aadd5a4c2c4/FLAG61aa0a82a [2022-10-17 10:12:11,637 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41dba0ce-c1fc-4818-9d18-3d6c8ac144b2/bin/uautomizer-J5u9QxTXDZ/data/41b863f46/b9b87cfdf5014b4d8ade6aadd5a4c2c4 [2022-10-17 10:12:11,639 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-17 10:12:11,641 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-10-17 10:12:11,642 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-17 10:12:11,643 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-17 10:12:11,646 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-17 10:12:11,647 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 10:12:11" (1/1) ... [2022-10-17 10:12:11,648 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5c17e32e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:12:11, skipping insertion in model container [2022-10-17 10:12:11,648 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 10:12:11" (1/1) ... [2022-10-17 10:12:11,655 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-17 10:12:11,744 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-17 10:12:11,959 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41dba0ce-c1fc-4818-9d18-3d6c8ac144b2/sv-benchmarks/c/ddv-machzwd/ddv_machzwd_inl.i[455,468] [2022-10-17 10:12:13,125 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 10:12:13,165 ERROR L326 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) [2022-10-17 10:12:13,166 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@3a231bd3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:12:13, skipping insertion in model container [2022-10-17 10:12:13,166 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-17 10:12:13,166 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2022-10-17 10:12:13,168 INFO L158 Benchmark]: Toolchain (without parser) took 1526.87ms. Allocated memory is still 117.4MB. Free memory was 74.2MB in the beginning and 62.0MB in the end (delta: 12.2MB). Peak memory consumption was 11.5MB. Max. memory is 16.1GB. [2022-10-17 10:12:13,169 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 117.4MB. Free memory is still 95.4MB. There was no memory consumed. Max. memory is 16.1GB. [2022-10-17 10:12:13,170 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1524.12ms. Allocated memory is still 117.4MB. Free memory was 74.0MB in the beginning and 62.0MB in the end (delta: 12.0MB). Peak memory consumption was 11.5MB. Max. memory is 16.1GB. [2022-10-17 10:12:13,171 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 117.4MB. Free memory is still 95.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1524.12ms. Allocated memory is still 117.4MB. Free memory was 74.0MB in the beginning and 62.0MB in the end (delta: 12.0MB). Peak memory consumption was 11.5MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 2975]: Unsupported Syntax Found a cast between two array/pointer types of different sizes while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41dba0ce-c1fc-4818-9d18-3d6c8ac144b2/bin/uautomizer-J5u9QxTXDZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41dba0ce-c1fc-4818-9d18-3d6c8ac144b2/bin/uautomizer-J5u9QxTXDZ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41dba0ce-c1fc-4818-9d18-3d6c8ac144b2/bin/uautomizer-J5u9QxTXDZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41dba0ce-c1fc-4818-9d18-3d6c8ac144b2/bin/uautomizer-J5u9QxTXDZ/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ddv-machzwd/ddv_machzwd_inl.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41dba0ce-c1fc-4818-9d18-3d6c8ac144b2/bin/uautomizer-J5u9QxTXDZ/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41dba0ce-c1fc-4818-9d18-3d6c8ac144b2/bin/uautomizer-J5u9QxTXDZ --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 6e9935ba6b05a3c7e4f0c65d8e33bc471835cb8eb350ac893c3dd9a00ab8c4f5 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-dbf71c6-m [2022-10-17 10:12:15,352 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-17 10:12:15,355 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-17 10:12:15,410 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-17 10:12:15,411 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-17 10:12:15,415 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-17 10:12:15,417 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-17 10:12:15,424 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-17 10:12:15,430 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-17 10:12:15,436 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-17 10:12:15,437 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-17 10:12:15,439 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-17 10:12:15,440 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-17 10:12:15,442 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-17 10:12:15,444 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-17 10:12:15,446 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-17 10:12:15,447 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-17 10:12:15,448 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-17 10:12:15,450 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-17 10:12:15,459 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-17 10:12:15,461 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-17 10:12:15,462 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-17 10:12:15,465 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-17 10:12:15,467 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-17 10:12:15,477 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-17 10:12:15,477 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-17 10:12:15,478 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-17 10:12:15,480 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-17 10:12:15,480 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-17 10:12:15,481 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-17 10:12:15,482 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-17 10:12:15,483 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-17 10:12:15,485 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-17 10:12:15,485 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-17 10:12:15,486 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-17 10:12:15,487 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-17 10:12:15,488 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-17 10:12:15,488 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-17 10:12:15,488 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-17 10:12:15,490 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-17 10:12:15,490 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-17 10:12:15,491 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41dba0ce-c1fc-4818-9d18-3d6c8ac144b2/bin/uautomizer-J5u9QxTXDZ/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2022-10-17 10:12:15,531 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-17 10:12:15,531 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-17 10:12:15,532 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-17 10:12:15,532 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-17 10:12:15,533 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-17 10:12:15,533 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-17 10:12:15,535 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-17 10:12:15,535 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-17 10:12:15,535 INFO L138 SettingsManager]: * Use SBE=true [2022-10-17 10:12:15,535 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-17 10:12:15,536 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-17 10:12:15,536 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-17 10:12:15,537 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-17 10:12:15,537 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-17 10:12:15,537 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-17 10:12:15,537 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-10-17 10:12:15,538 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-10-17 10:12:15,538 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-10-17 10:12:15,538 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-17 10:12:15,538 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-10-17 10:12:15,538 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-10-17 10:12:15,538 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-10-17 10:12:15,539 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-17 10:12:15,539 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-17 10:12:15,539 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-17 10:12:15,539 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-17 10:12:15,540 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-17 10:12:15,540 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-17 10:12:15,540 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-17 10:12:15,540 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-17 10:12:15,541 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-10-17 10:12:15,541 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-10-17 10:12:15,541 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-10-17 10:12:15,541 INFO L138 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_41dba0ce-c1fc-4818-9d18-3d6c8ac144b2/bin/uautomizer-J5u9QxTXDZ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41dba0ce-c1fc-4818-9d18-3d6c8ac144b2/bin/uautomizer-J5u9QxTXDZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6e9935ba6b05a3c7e4f0c65d8e33bc471835cb8eb350ac893c3dd9a00ab8c4f5 [2022-10-17 10:12:15,922 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-17 10:12:15,943 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-17 10:12:15,946 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-17 10:12:15,947 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-17 10:12:15,949 INFO L275 PluginConnector]: CDTParser initialized [2022-10-17 10:12:15,952 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41dba0ce-c1fc-4818-9d18-3d6c8ac144b2/bin/uautomizer-J5u9QxTXDZ/../../sv-benchmarks/c/ddv-machzwd/ddv_machzwd_inl.i [2022-10-17 10:12:16,025 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41dba0ce-c1fc-4818-9d18-3d6c8ac144b2/bin/uautomizer-J5u9QxTXDZ/data/a8bba29c5/f5538bacf0044bfeb8427248fb8d17b0/FLAG2317d3be7 [2022-10-17 10:12:16,726 INFO L306 CDTParser]: Found 1 translation units. [2022-10-17 10:12:16,726 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41dba0ce-c1fc-4818-9d18-3d6c8ac144b2/sv-benchmarks/c/ddv-machzwd/ddv_machzwd_inl.i [2022-10-17 10:12:16,766 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41dba0ce-c1fc-4818-9d18-3d6c8ac144b2/bin/uautomizer-J5u9QxTXDZ/data/a8bba29c5/f5538bacf0044bfeb8427248fb8d17b0/FLAG2317d3be7 [2022-10-17 10:12:17,041 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41dba0ce-c1fc-4818-9d18-3d6c8ac144b2/bin/uautomizer-J5u9QxTXDZ/data/a8bba29c5/f5538bacf0044bfeb8427248fb8d17b0 [2022-10-17 10:12:17,048 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-17 10:12:17,051 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-10-17 10:12:17,054 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-17 10:12:17,055 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-17 10:12:17,058 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-17 10:12:17,059 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 10:12:17" (1/1) ... [2022-10-17 10:12:17,060 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@21830e65 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:12:17, skipping insertion in model container [2022-10-17 10:12:17,060 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 10:12:17" (1/1) ... [2022-10-17 10:12:17,067 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-17 10:12:17,192 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-17 10:12:17,466 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41dba0ce-c1fc-4818-9d18-3d6c8ac144b2/sv-benchmarks/c/ddv-machzwd/ddv_machzwd_inl.i[455,468] [2022-10-17 10:12:18,502 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 10:12:18,558 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-10-17 10:12:18,589 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-17 10:12:18,593 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41dba0ce-c1fc-4818-9d18-3d6c8ac144b2/sv-benchmarks/c/ddv-machzwd/ddv_machzwd_inl.i[455,468] [2022-10-17 10:12:18,850 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 10:12:18,881 INFO L203 MainTranslator]: Completed pre-run [2022-10-17 10:12:18,892 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41dba0ce-c1fc-4818-9d18-3d6c8ac144b2/sv-benchmarks/c/ddv-machzwd/ddv_machzwd_inl.i[455,468] [2022-10-17 10:12:19,084 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 10:12:19,294 INFO L208 MainTranslator]: Completed translation [2022-10-17 10:12:19,294 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:12:19 WrapperNode [2022-10-17 10:12:19,294 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-17 10:12:19,296 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-17 10:12:19,299 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-17 10:12:19,299 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-17 10:12:19,306 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:12:19" (1/1) ... [2022-10-17 10:12:19,385 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:12:19" (1/1) ... [2022-10-17 10:12:19,465 INFO L138 Inliner]: procedures = 482, calls = 839, calls flagged for inlining = 54, calls inlined = 37, statements flattened = 970 [2022-10-17 10:12:19,466 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-17 10:12:19,467 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-17 10:12:19,467 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-17 10:12:19,467 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-17 10:12:19,484 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:12:19" (1/1) ... [2022-10-17 10:12:19,486 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:12:19" (1/1) ... [2022-10-17 10:12:19,495 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:12:19" (1/1) ... [2022-10-17 10:12:19,501 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:12:19" (1/1) ... [2022-10-17 10:12:19,577 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:12:19" (1/1) ... [2022-10-17 10:12:19,584 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:12:19" (1/1) ... [2022-10-17 10:12:19,612 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:12:19" (1/1) ... [2022-10-17 10:12:19,627 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:12:19" (1/1) ... [2022-10-17 10:12:19,644 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-17 10:12:19,645 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-17 10:12:19,645 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-17 10:12:19,645 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-17 10:12:19,646 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:12:19" (1/1) ... [2022-10-17 10:12:19,665 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-17 10:12:19,677 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41dba0ce-c1fc-4818-9d18-3d6c8ac144b2/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:12:19,687 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41dba0ce-c1fc-4818-9d18-3d6c8ac144b2/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-10-17 10:12:19,696 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41dba0ce-c1fc-4818-9d18-3d6c8ac144b2/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-10-17 10:12:19,722 INFO L130 BoogieDeclarations]: Found specification of procedure zf_timer_off [2022-10-17 10:12:19,723 INFO L138 BoogieDeclarations]: Found implementation of procedure zf_timer_off [2022-10-17 10:12:19,723 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~C_UINT~X~C_ULONG~TO~C_INT [2022-10-17 10:12:19,723 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~C_UINT~X~C_ULONG~TO~C_INT [2022-10-17 10:12:19,723 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-10-17 10:12:19,723 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_atomic_begin [2022-10-17 10:12:19,723 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-10-17 10:12:19,724 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-10-17 10:12:19,724 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-10-17 10:12:19,724 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2 [2022-10-17 10:12:19,724 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-10-17 10:12:19,724 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2022-10-17 10:12:19,724 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2022-10-17 10:12:19,725 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2022-10-17 10:12:19,725 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-10-17 10:12:19,725 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_atomic_end [2022-10-17 10:12:19,725 INFO L130 BoogieDeclarations]: Found specification of procedure zf_get_control [2022-10-17 10:12:19,725 INFO L138 BoogieDeclarations]: Found implementation of procedure zf_get_control [2022-10-17 10:12:19,725 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~C_INT [2022-10-17 10:12:19,726 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~C_INT [2022-10-17 10:12:19,726 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-10-17 10:12:19,726 INFO L130 BoogieDeclarations]: Found specification of procedure request_region [2022-10-17 10:12:19,726 INFO L138 BoogieDeclarations]: Found implementation of procedure request_region [2022-10-17 10:12:19,726 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-17 10:12:19,726 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-10-17 10:12:19,726 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-10-17 10:12:19,727 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-10-17 10:12:19,727 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_irqsave [2022-10-17 10:12:19,727 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_irqsave [2022-10-17 10:12:19,727 INFO L130 BoogieDeclarations]: Found specification of procedure release_region [2022-10-17 10:12:19,727 INFO L138 BoogieDeclarations]: Found implementation of procedure release_region [2022-10-17 10:12:19,727 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-17 10:12:19,728 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-17 10:12:19,728 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_init [2022-10-17 10:12:19,728 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_init [2022-10-17 10:12:19,728 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2022-10-17 10:12:19,728 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-10-17 10:12:19,729 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2022-10-17 10:12:19,729 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-10-17 10:12:19,729 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-10-17 10:12:19,729 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-10-17 10:12:19,729 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer [2022-10-17 10:12:19,729 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer [2022-10-17 10:12:19,730 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-10-17 10:12:19,730 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-10-17 10:12:19,730 INFO L130 BoogieDeclarations]: Found specification of procedure add_timer [2022-10-17 10:12:19,730 INFO L138 BoogieDeclarations]: Found implementation of procedure add_timer [2022-10-17 10:12:19,730 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2022-10-17 10:12:19,730 INFO L130 BoogieDeclarations]: Found specification of procedure cdev_add [2022-10-17 10:12:19,731 INFO L138 BoogieDeclarations]: Found implementation of procedure cdev_add [2022-10-17 10:12:19,731 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2022-10-17 10:12:19,731 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2022-10-17 10:12:19,731 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-10-17 10:12:19,731 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-10-17 10:12:19,731 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2022-10-17 10:12:19,732 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2022-10-17 10:12:19,732 INFO L130 BoogieDeclarations]: Found specification of procedure outw [2022-10-17 10:12:19,732 INFO L138 BoogieDeclarations]: Found implementation of procedure outw [2022-10-17 10:12:19,732 INFO L130 BoogieDeclarations]: Found specification of procedure outb [2022-10-17 10:12:19,732 INFO L138 BoogieDeclarations]: Found implementation of procedure outb [2022-10-17 10:12:19,733 INFO L130 BoogieDeclarations]: Found specification of procedure misc_deregister [2022-10-17 10:12:19,733 INFO L138 BoogieDeclarations]: Found implementation of procedure misc_deregister [2022-10-17 10:12:19,733 INFO L130 BoogieDeclarations]: Found specification of procedure assert_context_process [2022-10-17 10:12:19,733 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_context_process [2022-10-17 10:12:19,733 INFO L130 BoogieDeclarations]: Found specification of procedure zf_set_control [2022-10-17 10:12:19,733 INFO L138 BoogieDeclarations]: Found implementation of procedure zf_set_control [2022-10-17 10:12:19,734 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~C_ULONG~X~$Pointer$~TO~C_LONG [2022-10-17 10:12:19,734 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~C_ULONG~X~$Pointer$~TO~C_LONG [2022-10-17 10:12:19,734 INFO L130 BoogieDeclarations]: Found specification of procedure zf_readw [2022-10-17 10:12:19,734 INFO L138 BoogieDeclarations]: Found implementation of procedure zf_readw [2022-10-17 10:12:19,734 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2022-10-17 10:12:19,734 INFO L130 BoogieDeclarations]: Found specification of procedure zf_ping [2022-10-17 10:12:19,735 INFO L138 BoogieDeclarations]: Found implementation of procedure zf_ping [2022-10-17 10:12:19,735 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2022-10-17 10:12:19,735 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2022-10-17 10:12:19,735 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~C_ULONG~TO~VOID [2022-10-17 10:12:19,735 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~C_ULONG~TO~VOID [2022-10-17 10:12:20,191 INFO L235 CfgBuilder]: Building ICFG [2022-10-17 10:12:20,194 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-17 10:12:26,140 INFO L276 CfgBuilder]: Performing block encoding [2022-10-17 10:12:26,151 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-17 10:12:26,151 INFO L300 CfgBuilder]: Removed 4 assume(true) statements. [2022-10-17 10:12:26,155 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 10:12:26 BoogieIcfgContainer [2022-10-17 10:12:26,155 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-17 10:12:26,158 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-17 10:12:26,158 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-17 10:12:26,161 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-17 10:12:26,161 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.10 10:12:17" (1/3) ... [2022-10-17 10:12:26,162 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@667db04 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.10 10:12:26, skipping insertion in model container [2022-10-17 10:12:26,162 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:12:19" (2/3) ... [2022-10-17 10:12:26,162 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@667db04 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.10 10:12:26, skipping insertion in model container [2022-10-17 10:12:26,162 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 10:12:26" (3/3) ... [2022-10-17 10:12:26,164 INFO L112 eAbstractionObserver]: Analyzing ICFG ddv_machzwd_inl.i [2022-10-17 10:12:26,182 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-17 10:12:26,182 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 205 error locations. [2022-10-17 10:12:26,239 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-17 10:12:26,246 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;@683d1693, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-17 10:12:26,246 INFO L358 AbstractCegarLoop]: Starting to check reachability of 205 error locations. [2022-10-17 10:12:26,252 INFO L276 IsEmpty]: Start isEmpty. Operand has 666 states, 356 states have (on average 1.8202247191011236) internal successors, (648), 566 states have internal predecessors, (648), 78 states have call successors, (78), 26 states have call predecessors, (78), 26 states have return successors, (78), 78 states have call predecessors, (78), 78 states have call successors, (78) [2022-10-17 10:12:26,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-10-17 10:12:26,259 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:12:26,260 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-10-17 10:12:26,260 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting spin_lock_initErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [spin_lock_initErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, spin_lock_initErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, spin_lock_initErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 202 more)] === [2022-10-17 10:12:26,265 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:12:26,265 INFO L85 PathProgramCache]: Analyzing trace with hash 333908101, now seen corresponding path program 1 times [2022-10-17 10:12:26,280 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-10-17 10:12:26,280 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [191117668] [2022-10-17 10:12:26,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:12:26,281 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-10-17 10:12:26,281 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41dba0ce-c1fc-4818-9d18-3d6c8ac144b2/bin/uautomizer-J5u9QxTXDZ/mathsat [2022-10-17 10:12:26,289 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41dba0ce-c1fc-4818-9d18-3d6c8ac144b2/bin/uautomizer-J5u9QxTXDZ/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-10-17 10:12:26,365 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41dba0ce-c1fc-4818-9d18-3d6c8ac144b2/bin/uautomizer-J5u9QxTXDZ/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-10-17 10:12:26,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:12:26,822 INFO L263 TraceCheckSpWp]: Trace formula consists of 472 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-17 10:12:26,826 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 10:12:26,941 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:12:26,942 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-17 10:12:26,942 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-10-17 10:12:26,943 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [191117668] [2022-10-17 10:12:26,943 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [191117668] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:12:26,943 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:12:26,944 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-17 10:12:26,945 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [296828685] [2022-10-17 10:12:26,946 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:12:26,950 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-17 10:12:26,950 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-10-17 10:12:26,975 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-17 10:12:26,976 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-17 10:12:26,980 INFO L87 Difference]: Start difference. First operand has 666 states, 356 states have (on average 1.8202247191011236) internal successors, (648), 566 states have internal predecessors, (648), 78 states have call successors, (78), 26 states have call predecessors, (78), 26 states have return successors, (78), 78 states have call predecessors, (78), 78 states have call successors, (78) Second operand has 5 states, 4 states have (on average 1.0) internal successors, (4), 3 states have internal predecessors, (4), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:12:29,028 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-17 10:12:31,038 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-17 10:12:34,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:12:34,379 INFO L93 Difference]: Finished difference Result 1204 states and 1443 transitions. [2022-10-17 10:12:34,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-17 10:12:34,382 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 1.0) internal successors, (4), 3 states have internal predecessors, (4), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2022-10-17 10:12:34,382 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 10:12:34,411 INFO L225 Difference]: With dead ends: 1204 [2022-10-17 10:12:34,418 INFO L226 Difference]: Without dead ends: 1200 [2022-10-17 10:12:34,420 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-10-17 10:12:34,427 INFO L413 NwaCegarLoop]: 759 mSDtfsCounter, 687 mSDsluCounter, 1725 mSDsCounter, 0 mSdLazyCounter, 1106 mSolverCounterSat, 4 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 688 SdHoareTripleChecker+Valid, 2484 SdHoareTripleChecker+Invalid, 1112 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1106 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.2s IncrementalHoareTripleChecker+Time [2022-10-17 10:12:34,428 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [688 Valid, 2484 Invalid, 1112 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1106 Invalid, 2 Unknown, 0 Unchecked, 7.2s Time] [2022-10-17 10:12:34,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1200 states. [2022-10-17 10:12:34,571 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1200 to 987. [2022-10-17 10:12:34,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 987 states, 594 states have (on average 1.803030303030303) internal successors, (1071), 814 states have internal predecessors, (1071), 138 states have call successors, (138), 50 states have call predecessors, (138), 50 states have return successors, (138), 131 states have call predecessors, (138), 138 states have call successors, (138) [2022-10-17 10:12:34,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 987 states to 987 states and 1347 transitions. [2022-10-17 10:12:34,589 INFO L78 Accepts]: Start accepts. Automaton has 987 states and 1347 transitions. Word has length 5 [2022-10-17 10:12:34,590 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 10:12:34,590 INFO L495 AbstractCegarLoop]: Abstraction has 987 states and 1347 transitions. [2022-10-17 10:12:34,594 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 1.0) internal successors, (4), 3 states have internal predecessors, (4), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:12:34,594 INFO L276 IsEmpty]: Start isEmpty. Operand 987 states and 1347 transitions. [2022-10-17 10:12:34,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-10-17 10:12:34,595 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:12:34,595 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-10-17 10:12:34,613 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41dba0ce-c1fc-4818-9d18-3d6c8ac144b2/bin/uautomizer-J5u9QxTXDZ/mathsat -unsat_core_generation=3 (2)] Ended with exit code 0 [2022-10-17 10:12:34,813 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41dba0ce-c1fc-4818-9d18-3d6c8ac144b2/bin/uautomizer-J5u9QxTXDZ/mathsat -unsat_core_generation=3 [2022-10-17 10:12:34,813 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting spin_lock_initErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [spin_lock_initErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, spin_lock_initErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, spin_lock_initErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 202 more)] === [2022-10-17 10:12:34,814 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:12:34,814 INFO L85 PathProgramCache]: Analyzing trace with hash 333908102, now seen corresponding path program 1 times [2022-10-17 10:12:34,815 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-10-17 10:12:34,815 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2068512421] [2022-10-17 10:12:34,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:12:34,816 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-10-17 10:12:34,816 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41dba0ce-c1fc-4818-9d18-3d6c8ac144b2/bin/uautomizer-J5u9QxTXDZ/mathsat [2022-10-17 10:12:34,817 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41dba0ce-c1fc-4818-9d18-3d6c8ac144b2/bin/uautomizer-J5u9QxTXDZ/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-10-17 10:12:34,824 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41dba0ce-c1fc-4818-9d18-3d6c8ac144b2/bin/uautomizer-J5u9QxTXDZ/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-10-17 10:12:35,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:12:35,265 INFO L263 TraceCheckSpWp]: Trace formula consists of 472 conjuncts, 8 conjunts are in the unsatisfiable core [2022-10-17 10:12:35,267 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 10:12:35,356 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:12:35,357 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-17 10:12:35,357 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-10-17 10:12:35,357 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2068512421] [2022-10-17 10:12:35,357 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2068512421] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:12:35,357 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:12:35,358 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-17 10:12:35,358 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [492502225] [2022-10-17 10:12:35,358 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:12:35,359 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-17 10:12:35,359 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-10-17 10:12:35,360 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-17 10:12:35,360 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-17 10:12:35,360 INFO L87 Difference]: Start difference. First operand 987 states and 1347 transitions. Second operand has 5 states, 4 states have (on average 1.0) internal successors, (4), 3 states have internal predecessors, (4), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:12:37,392 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-17 10:12:39,403 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-17 10:12:42,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:12:42,673 INFO L93 Difference]: Finished difference Result 1119 states and 1439 transitions. [2022-10-17 10:12:42,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-17 10:12:42,674 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 1.0) internal successors, (4), 3 states have internal predecessors, (4), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2022-10-17 10:12:42,674 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 10:12:42,683 INFO L225 Difference]: With dead ends: 1119 [2022-10-17 10:12:42,683 INFO L226 Difference]: Without dead ends: 1119 [2022-10-17 10:12:42,683 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-10-17 10:12:42,685 INFO L413 NwaCegarLoop]: 840 mSDtfsCounter, 268 mSDsluCounter, 1790 mSDsCounter, 0 mSdLazyCounter, 850 mSolverCounterSat, 1 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 269 SdHoareTripleChecker+Valid, 2630 SdHoareTripleChecker+Invalid, 853 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 850 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.2s IncrementalHoareTripleChecker+Time [2022-10-17 10:12:42,685 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [269 Valid, 2630 Invalid, 853 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 850 Invalid, 2 Unknown, 0 Unchecked, 7.2s Time] [2022-10-17 10:12:42,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1119 states. [2022-10-17 10:12:42,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1119 to 1060. [2022-10-17 10:12:42,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1060 states, 635 states have (on average 1.7653543307086614) internal successors, (1121), 856 states have internal predecessors, (1121), 157 states have call successors, (157), 63 states have call predecessors, (157), 63 states have return successors, (157), 150 states have call predecessors, (157), 157 states have call successors, (157) [2022-10-17 10:12:42,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1060 states to 1060 states and 1435 transitions. [2022-10-17 10:12:42,735 INFO L78 Accepts]: Start accepts. Automaton has 1060 states and 1435 transitions. Word has length 5 [2022-10-17 10:12:42,736 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 10:12:42,736 INFO L495 AbstractCegarLoop]: Abstraction has 1060 states and 1435 transitions. [2022-10-17 10:12:42,736 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 1.0) internal successors, (4), 3 states have internal predecessors, (4), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:12:42,736 INFO L276 IsEmpty]: Start isEmpty. Operand 1060 states and 1435 transitions. [2022-10-17 10:12:42,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-10-17 10:12:42,737 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:12:42,737 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:12:42,750 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41dba0ce-c1fc-4818-9d18-3d6c8ac144b2/bin/uautomizer-J5u9QxTXDZ/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-10-17 10:12:42,945 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41dba0ce-c1fc-4818-9d18-3d6c8ac144b2/bin/uautomizer-J5u9QxTXDZ/mathsat -unsat_core_generation=3 [2022-10-17 10:12:42,946 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [spin_lock_initErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, spin_lock_initErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, spin_lock_initErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 202 more)] === [2022-10-17 10:12:42,946 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:12:42,946 INFO L85 PathProgramCache]: Analyzing trace with hash -863937403, now seen corresponding path program 1 times [2022-10-17 10:12:42,947 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-10-17 10:12:42,947 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1919962977] [2022-10-17 10:12:42,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:12:42,947 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-10-17 10:12:42,947 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41dba0ce-c1fc-4818-9d18-3d6c8ac144b2/bin/uautomizer-J5u9QxTXDZ/mathsat [2022-10-17 10:12:42,948 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41dba0ce-c1fc-4818-9d18-3d6c8ac144b2/bin/uautomizer-J5u9QxTXDZ/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-10-17 10:12:42,949 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41dba0ce-c1fc-4818-9d18-3d6c8ac144b2/bin/uautomizer-J5u9QxTXDZ/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-10-17 10:12:43,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:12:43,370 INFO L263 TraceCheckSpWp]: Trace formula consists of 520 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-17 10:12:43,371 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 10:12:43,486 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:12:43,486 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-17 10:12:43,486 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-10-17 10:12:43,487 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1919962977] [2022-10-17 10:12:43,487 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1919962977] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:12:43,487 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:12:43,487 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-10-17 10:12:43,487 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1002480366] [2022-10-17 10:12:43,488 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:12:43,488 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-17 10:12:43,488 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-10-17 10:12:43,489 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-17 10:12:43,489 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-17 10:12:43,490 INFO L87 Difference]: Start difference. First operand 1060 states and 1435 transitions. Second operand has 3 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)