./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test7-1.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_7967bbc0-5f47-4237-b443-4b80357e6714/bin/uautomizer-J5u9QxTXDZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967bbc0-5f47-4237-b443-4b80357e6714/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_7967bbc0-5f47-4237-b443-4b80357e6714/bin/uautomizer-J5u9QxTXDZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967bbc0-5f47-4237-b443-4b80357e6714/bin/uautomizer-J5u9QxTXDZ/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test7-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967bbc0-5f47-4237-b443-4b80357e6714/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_7967bbc0-5f47-4237-b443-4b80357e6714/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 22b4144b7005899e18ff8135fa52f12863f7106dbe1ddb808d25d8593c5f8fc4 --- 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 11:03:09,358 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-17 11:03:09,360 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-17 11:03:09,403 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-17 11:03:09,404 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-17 11:03:09,409 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-17 11:03:09,412 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-17 11:03:09,416 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-17 11:03:09,421 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-17 11:03:09,429 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-17 11:03:09,430 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-17 11:03:09,433 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-17 11:03:09,433 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-17 11:03:09,436 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-17 11:03:09,438 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-17 11:03:09,440 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-17 11:03:09,441 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-17 11:03:09,442 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-17 11:03:09,445 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-17 11:03:09,452 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-17 11:03:09,454 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-17 11:03:09,455 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-17 11:03:09,458 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-17 11:03:09,459 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-17 11:03:09,464 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-17 11:03:09,464 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-17 11:03:09,465 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-17 11:03:09,467 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-17 11:03:09,467 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-17 11:03:09,469 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-17 11:03:09,470 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-17 11:03:09,472 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-17 11:03:09,474 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-17 11:03:09,475 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-17 11:03:09,476 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-17 11:03:09,476 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-17 11:03:09,477 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-17 11:03:09,477 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-17 11:03:09,477 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-17 11:03:09,478 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-17 11:03:09,479 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-17 11:03:09,479 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967bbc0-5f47-4237-b443-4b80357e6714/bin/uautomizer-J5u9QxTXDZ/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2022-10-17 11:03:09,518 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-17 11:03:09,521 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-17 11:03:09,522 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-17 11:03:09,522 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-17 11:03:09,523 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-17 11:03:09,523 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-17 11:03:09,524 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-17 11:03:09,524 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-17 11:03:09,524 INFO L138 SettingsManager]: * Use SBE=true [2022-10-17 11:03:09,524 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-17 11:03:09,525 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-17 11:03:09,526 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-17 11:03:09,526 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-17 11:03:09,526 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-17 11:03:09,526 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-17 11:03:09,527 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-10-17 11:03:09,527 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-10-17 11:03:09,527 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-10-17 11:03:09,527 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-17 11:03:09,527 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-10-17 11:03:09,528 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-17 11:03:09,528 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-17 11:03:09,528 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-17 11:03:09,528 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-17 11:03:09,529 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-17 11:03:09,529 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-17 11:03:09,529 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-17 11:03:09,529 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-17 11:03:09,530 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-17 11:03:09,530 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-17 11:03:09,530 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_7967bbc0-5f47-4237-b443-4b80357e6714/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967bbc0-5f47-4237-b443-4b80357e6714/bin/uautomizer-J5u9QxTXDZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 22b4144b7005899e18ff8135fa52f12863f7106dbe1ddb808d25d8593c5f8fc4 [2022-10-17 11:03:09,770 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-17 11:03:09,806 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-17 11:03:09,809 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-17 11:03:09,811 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-17 11:03:09,811 INFO L275 PluginConnector]: CDTParser initialized [2022-10-17 11:03:09,813 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967bbc0-5f47-4237-b443-4b80357e6714/bin/uautomizer-J5u9QxTXDZ/../../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test7-1.i [2022-10-17 11:03:09,890 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967bbc0-5f47-4237-b443-4b80357e6714/bin/uautomizer-J5u9QxTXDZ/data/92ff6e578/8672ed85a05d4b3db3316d37e65763e3/FLAGc89157e01 [2022-10-17 11:03:10,454 INFO L306 CDTParser]: Found 1 translation units. [2022-10-17 11:03:10,454 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967bbc0-5f47-4237-b443-4b80357e6714/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test7-1.i [2022-10-17 11:03:10,485 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967bbc0-5f47-4237-b443-4b80357e6714/bin/uautomizer-J5u9QxTXDZ/data/92ff6e578/8672ed85a05d4b3db3316d37e65763e3/FLAGc89157e01 [2022-10-17 11:03:10,735 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967bbc0-5f47-4237-b443-4b80357e6714/bin/uautomizer-J5u9QxTXDZ/data/92ff6e578/8672ed85a05d4b3db3316d37e65763e3 [2022-10-17 11:03:10,737 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-17 11:03:10,739 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-10-17 11:03:10,741 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-17 11:03:10,741 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-17 11:03:10,746 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-17 11:03:10,746 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 11:03:10" (1/1) ... [2022-10-17 11:03:10,748 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@a7cad4e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:03:10, skipping insertion in model container [2022-10-17 11:03:10,748 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 11:03:10" (1/1) ... [2022-10-17 11:03:10,756 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-17 11:03:10,830 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-17 11:03:11,361 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_7967bbc0-5f47-4237-b443-4b80357e6714/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test7-1.i[33021,33034] [2022-10-17 11:03:11,485 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_7967bbc0-5f47-4237-b443-4b80357e6714/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test7-1.i[44124,44137] [2022-10-17 11:03:11,486 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_7967bbc0-5f47-4237-b443-4b80357e6714/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test7-1.i[44245,44258] [2022-10-17 11:03:11,495 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 11:03:11,504 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 11:03:11,505 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@7cfe458e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:03:11, skipping insertion in model container [2022-10-17 11:03:11,505 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-17 11:03:11,505 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2022-10-17 11:03:11,507 INFO L158 Benchmark]: Toolchain (without parser) took 767.38ms. Allocated memory is still 109.1MB. Free memory was 67.5MB in the beginning and 75.0MB in the end (delta: -7.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-10-17 11:03:11,508 INFO L158 Benchmark]: CDTParser took 0.26ms. Allocated memory is still 109.1MB. Free memory was 87.0MB in the beginning and 86.9MB in the end (delta: 54.1kB). There was no memory consumed. Max. memory is 16.1GB. [2022-10-17 11:03:11,509 INFO L158 Benchmark]: CACSL2BoogieTranslator took 764.50ms. Allocated memory is still 109.1MB. Free memory was 67.3MB in the beginning and 75.0MB in the end (delta: -7.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-10-17 11:03:11,510 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26ms. Allocated memory is still 109.1MB. Free memory was 87.0MB in the beginning and 86.9MB in the end (delta: 54.1kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 764.50ms. Allocated memory is still 109.1MB. Free memory was 67.3MB in the beginning and 75.0MB in the end (delta: -7.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 716]: 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_7967bbc0-5f47-4237-b443-4b80357e6714/bin/uautomizer-J5u9QxTXDZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967bbc0-5f47-4237-b443-4b80357e6714/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_7967bbc0-5f47-4237-b443-4b80357e6714/bin/uautomizer-J5u9QxTXDZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967bbc0-5f47-4237-b443-4b80357e6714/bin/uautomizer-J5u9QxTXDZ/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test7-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967bbc0-5f47-4237-b443-4b80357e6714/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_7967bbc0-5f47-4237-b443-4b80357e6714/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 22b4144b7005899e18ff8135fa52f12863f7106dbe1ddb808d25d8593c5f8fc4 --- 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 11:03:13,763 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-17 11:03:13,766 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-17 11:03:13,803 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-17 11:03:13,804 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-17 11:03:13,805 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-17 11:03:13,807 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-17 11:03:13,810 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-17 11:03:13,812 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-17 11:03:13,813 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-17 11:03:13,814 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-17 11:03:13,816 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-17 11:03:13,817 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-17 11:03:13,818 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-17 11:03:13,819 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-17 11:03:13,821 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-17 11:03:13,822 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-17 11:03:13,823 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-17 11:03:13,825 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-17 11:03:13,828 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-17 11:03:13,830 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-17 11:03:13,831 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-17 11:03:13,833 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-17 11:03:13,834 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-17 11:03:13,840 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-17 11:03:13,840 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-17 11:03:13,841 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-17 11:03:13,842 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-17 11:03:13,843 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-17 11:03:13,844 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-17 11:03:13,844 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-17 11:03:13,845 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-17 11:03:13,846 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-17 11:03:13,847 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-17 11:03:13,848 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-17 11:03:13,849 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-17 11:03:13,850 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-17 11:03:13,850 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-17 11:03:13,850 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-17 11:03:13,852 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-17 11:03:13,852 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-17 11:03:13,853 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967bbc0-5f47-4237-b443-4b80357e6714/bin/uautomizer-J5u9QxTXDZ/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2022-10-17 11:03:13,880 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-17 11:03:13,880 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-17 11:03:13,881 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-17 11:03:13,881 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-17 11:03:13,882 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-17 11:03:13,882 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-17 11:03:13,883 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-17 11:03:13,883 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-17 11:03:13,883 INFO L138 SettingsManager]: * Use SBE=true [2022-10-17 11:03:13,884 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-17 11:03:13,884 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-17 11:03:13,884 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-17 11:03:13,885 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-17 11:03:13,885 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-17 11:03:13,885 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-17 11:03:13,886 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-10-17 11:03:13,886 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-10-17 11:03:13,886 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-10-17 11:03:13,886 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-17 11:03:13,887 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-10-17 11:03:13,887 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-10-17 11:03:13,887 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-10-17 11:03:13,888 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-17 11:03:13,888 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-17 11:03:13,888 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-17 11:03:13,888 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-17 11:03:13,889 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-17 11:03:13,889 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-17 11:03:13,889 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-17 11:03:13,889 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-17 11:03:13,890 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-10-17 11:03:13,890 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-10-17 11:03:13,890 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-10-17 11:03:13,890 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_7967bbc0-5f47-4237-b443-4b80357e6714/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967bbc0-5f47-4237-b443-4b80357e6714/bin/uautomizer-J5u9QxTXDZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 22b4144b7005899e18ff8135fa52f12863f7106dbe1ddb808d25d8593c5f8fc4 [2022-10-17 11:03:14,213 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-17 11:03:14,240 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-17 11:03:14,245 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-17 11:03:14,247 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-17 11:03:14,248 INFO L275 PluginConnector]: CDTParser initialized [2022-10-17 11:03:14,249 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967bbc0-5f47-4237-b443-4b80357e6714/bin/uautomizer-J5u9QxTXDZ/../../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test7-1.i [2022-10-17 11:03:14,324 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967bbc0-5f47-4237-b443-4b80357e6714/bin/uautomizer-J5u9QxTXDZ/data/8645a26c3/e76a0a7d259944619e03449039a4bfb4/FLAGf0b29709c [2022-10-17 11:03:15,087 INFO L306 CDTParser]: Found 1 translation units. [2022-10-17 11:03:15,087 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967bbc0-5f47-4237-b443-4b80357e6714/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test7-1.i [2022-10-17 11:03:15,105 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967bbc0-5f47-4237-b443-4b80357e6714/bin/uautomizer-J5u9QxTXDZ/data/8645a26c3/e76a0a7d259944619e03449039a4bfb4/FLAGf0b29709c [2022-10-17 11:03:15,246 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967bbc0-5f47-4237-b443-4b80357e6714/bin/uautomizer-J5u9QxTXDZ/data/8645a26c3/e76a0a7d259944619e03449039a4bfb4 [2022-10-17 11:03:15,249 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-17 11:03:15,250 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-10-17 11:03:15,251 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-17 11:03:15,252 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-17 11:03:15,255 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-17 11:03:15,256 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 11:03:15" (1/1) ... [2022-10-17 11:03:15,257 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7d35c025 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:03:15, skipping insertion in model container [2022-10-17 11:03:15,257 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 11:03:15" (1/1) ... [2022-10-17 11:03:15,264 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-17 11:03:15,326 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-17 11:03:15,781 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_7967bbc0-5f47-4237-b443-4b80357e6714/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test7-1.i[33021,33034] [2022-10-17 11:03:15,947 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_7967bbc0-5f47-4237-b443-4b80357e6714/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test7-1.i[44124,44137] [2022-10-17 11:03:15,948 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_7967bbc0-5f47-4237-b443-4b80357e6714/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test7-1.i[44245,44258] [2022-10-17 11:03:15,959 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 11:03:15,972 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-10-17 11:03:15,995 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-17 11:03:16,025 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_7967bbc0-5f47-4237-b443-4b80357e6714/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test7-1.i[33021,33034] [2022-10-17 11:03:16,093 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_7967bbc0-5f47-4237-b443-4b80357e6714/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test7-1.i[44124,44137] [2022-10-17 11:03:16,093 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_7967bbc0-5f47-4237-b443-4b80357e6714/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test7-1.i[44245,44258] [2022-10-17 11:03:16,096 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 11:03:16,109 INFO L203 MainTranslator]: Completed pre-run [2022-10-17 11:03:16,170 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_7967bbc0-5f47-4237-b443-4b80357e6714/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test7-1.i[33021,33034] [2022-10-17 11:03:16,254 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_7967bbc0-5f47-4237-b443-4b80357e6714/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test7-1.i[44124,44137] [2022-10-17 11:03:16,255 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_7967bbc0-5f47-4237-b443-4b80357e6714/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test7-1.i[44245,44258] [2022-10-17 11:03:16,258 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 11:03:16,302 INFO L208 MainTranslator]: Completed translation [2022-10-17 11:03:16,303 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:03:16 WrapperNode [2022-10-17 11:03:16,303 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-17 11:03:16,304 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-17 11:03:16,304 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-17 11:03:16,305 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-17 11:03:16,312 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:03:16" (1/1) ... [2022-10-17 11:03:16,352 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:03:16" (1/1) ... [2022-10-17 11:03:16,439 INFO L138 Inliner]: procedures = 179, calls = 277, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 1011 [2022-10-17 11:03:16,439 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-17 11:03:16,440 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-17 11:03:16,440 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-17 11:03:16,440 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-17 11:03:16,457 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:03:16" (1/1) ... [2022-10-17 11:03:16,458 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:03:16" (1/1) ... [2022-10-17 11:03:16,475 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:03:16" (1/1) ... [2022-10-17 11:03:16,475 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:03:16" (1/1) ... [2022-10-17 11:03:16,528 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:03:16" (1/1) ... [2022-10-17 11:03:16,576 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:03:16" (1/1) ... [2022-10-17 11:03:16,581 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:03:16" (1/1) ... [2022-10-17 11:03:16,587 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:03:16" (1/1) ... [2022-10-17 11:03:16,596 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-17 11:03:16,602 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-17 11:03:16,602 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-17 11:03:16,602 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-17 11:03:16,603 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:03:16" (1/1) ... [2022-10-17 11:03:16,610 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-17 11:03:16,621 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967bbc0-5f47-4237-b443-4b80357e6714/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 11:03:16,646 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967bbc0-5f47-4237-b443-4b80357e6714/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-10-17 11:03:16,673 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967bbc0-5f47-4237-b443-4b80357e6714/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-10-17 11:03:16,696 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2022-10-17 11:03:16,697 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-10-17 11:03:16,697 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-10-17 11:03:16,697 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-10-17 11:03:16,697 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-10-17 11:03:16,698 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-17 11:03:16,698 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-10-17 11:03:16,698 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-10-17 11:03:16,698 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2022-10-17 11:03:16,698 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-10-17 11:03:16,699 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-10-17 11:03:16,700 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-10-17 11:03:16,700 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-10-17 11:03:16,700 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-17 11:03:16,700 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-17 11:03:17,037 INFO L235 CfgBuilder]: Building ICFG [2022-10-17 11:03:17,039 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-17 11:03:17,044 WARN L816 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-10-17 11:03:22,395 INFO L276 CfgBuilder]: Performing block encoding [2022-10-17 11:03:22,408 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-17 11:03:22,409 INFO L300 CfgBuilder]: Removed 63 assume(true) statements. [2022-10-17 11:03:22,412 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 11:03:22 BoogieIcfgContainer [2022-10-17 11:03:22,413 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-17 11:03:22,415 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-17 11:03:22,415 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-17 11:03:22,418 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-17 11:03:22,419 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.10 11:03:15" (1/3) ... [2022-10-17 11:03:22,419 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1175b5d9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.10 11:03:22, skipping insertion in model container [2022-10-17 11:03:22,420 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:03:16" (2/3) ... [2022-10-17 11:03:22,420 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1175b5d9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.10 11:03:22, skipping insertion in model container [2022-10-17 11:03:22,420 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 11:03:22" (3/3) ... [2022-10-17 11:03:22,425 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_JEN_test7-1.i [2022-10-17 11:03:22,442 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-17 11:03:22,443 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 530 error locations. [2022-10-17 11:03:22,537 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-17 11:03:22,550 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;@5d517bf9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-17 11:03:22,551 INFO L358 AbstractCegarLoop]: Starting to check reachability of 530 error locations. [2022-10-17 11:03:22,563 INFO L276 IsEmpty]: Start isEmpty. Operand has 1050 states, 518 states have (on average 2.2548262548262548) internal successors, (1168), 1045 states have internal predecessors, (1168), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-10-17 11:03:22,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-10-17 11:03:22,569 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 11:03:22,570 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2022-10-17 11:03:22,570 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 527 more)] === [2022-10-17 11:03:22,577 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 11:03:22,577 INFO L85 PathProgramCache]: Analyzing trace with hash 38794, now seen corresponding path program 1 times [2022-10-17 11:03:22,591 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-10-17 11:03:22,592 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [133682256] [2022-10-17 11:03:22,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 11:03:22,593 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-10-17 11:03:22,594 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967bbc0-5f47-4237-b443-4b80357e6714/bin/uautomizer-J5u9QxTXDZ/mathsat [2022-10-17 11:03:22,597 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967bbc0-5f47-4237-b443-4b80357e6714/bin/uautomizer-J5u9QxTXDZ/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-10-17 11:03:22,617 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967bbc0-5f47-4237-b443-4b80357e6714/bin/uautomizer-J5u9QxTXDZ/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-10-17 11:03:22,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:03:22,765 INFO L263 TraceCheckSpWp]: Trace formula consists of 25 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-17 11:03:22,772 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 11:03:22,869 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 [2022-10-17 11:03:22,886 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 11:03:22,887 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-17 11:03:22,888 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-10-17 11:03:22,888 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [133682256] [2022-10-17 11:03:22,889 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [133682256] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 11:03:22,889 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 11:03:22,889 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-17 11:03:22,891 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [798090189] [2022-10-17 11:03:22,893 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 11:03:22,898 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-17 11:03:22,900 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-10-17 11:03:22,943 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-17 11:03:22,944 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-17 11:03:22,949 INFO L87 Difference]: Start difference. First operand has 1050 states, 518 states have (on average 2.2548262548262548) internal successors, (1168), 1045 states have internal predecessors, (1168), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 11:03:24,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 11:03:24,965 INFO L93 Difference]: Finished difference Result 1041 states and 1096 transitions. [2022-10-17 11:03:24,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-17 11:03:24,968 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2022-10-17 11:03:24,968 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 11:03:24,988 INFO L225 Difference]: With dead ends: 1041 [2022-10-17 11:03:24,988 INFO L226 Difference]: Without dead ends: 1039 [2022-10-17 11:03:24,990 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-17 11:03:24,993 INFO L413 NwaCegarLoop]: 618 mSDtfsCounter, 969 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 536 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 972 SdHoareTripleChecker+Valid, 670 SdHoareTripleChecker+Invalid, 552 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 536 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-10-17 11:03:24,994 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [972 Valid, 670 Invalid, 552 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 536 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-10-17 11:03:25,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1039 states. [2022-10-17 11:03:25,079 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1039 to 1031. [2022-10-17 11:03:25,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1031 states, 516 states have (on average 2.0949612403100777) internal successors, (1081), 1026 states have internal predecessors, (1081), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-10-17 11:03:25,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1031 states to 1031 states and 1087 transitions. [2022-10-17 11:03:25,089 INFO L78 Accepts]: Start accepts. Automaton has 1031 states and 1087 transitions. Word has length 3 [2022-10-17 11:03:25,089 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 11:03:25,089 INFO L495 AbstractCegarLoop]: Abstraction has 1031 states and 1087 transitions. [2022-10-17 11:03:25,090 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 11:03:25,090 INFO L276 IsEmpty]: Start isEmpty. Operand 1031 states and 1087 transitions. [2022-10-17 11:03:25,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-10-17 11:03:25,090 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 11:03:25,091 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2022-10-17 11:03:25,103 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967bbc0-5f47-4237-b443-4b80357e6714/bin/uautomizer-J5u9QxTXDZ/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-10-17 11:03:25,302 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967bbc0-5f47-4237-b443-4b80357e6714/bin/uautomizer-J5u9QxTXDZ/mathsat -unsat_core_generation=3 [2022-10-17 11:03:25,303 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 527 more)] === [2022-10-17 11:03:25,303 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 11:03:25,303 INFO L85 PathProgramCache]: Analyzing trace with hash 38795, now seen corresponding path program 1 times [2022-10-17 11:03:25,304 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-10-17 11:03:25,304 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [806388989] [2022-10-17 11:03:25,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 11:03:25,305 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-10-17 11:03:25,305 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967bbc0-5f47-4237-b443-4b80357e6714/bin/uautomizer-J5u9QxTXDZ/mathsat [2022-10-17 11:03:25,306 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967bbc0-5f47-4237-b443-4b80357e6714/bin/uautomizer-J5u9QxTXDZ/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-10-17 11:03:25,343 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967bbc0-5f47-4237-b443-4b80357e6714/bin/uautomizer-J5u9QxTXDZ/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-10-17 11:03:25,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:03:25,415 INFO L263 TraceCheckSpWp]: Trace formula consists of 25 conjuncts, 4 conjunts are in the unsatisfiable core [2022-10-17 11:03:25,418 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 11:03:25,431 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 [2022-10-17 11:03:25,442 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 11:03:25,442 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-17 11:03:25,443 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-10-17 11:03:25,443 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [806388989] [2022-10-17 11:03:25,443 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [806388989] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 11:03:25,443 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 11:03:25,444 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-17 11:03:25,444 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [875238374] [2022-10-17 11:03:25,444 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 11:03:25,445 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-17 11:03:25,446 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-10-17 11:03:25,446 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-17 11:03:25,446 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-17 11:03:25,447 INFO L87 Difference]: Start difference. First operand 1031 states and 1087 transitions. Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 11:03:28,356 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 11:03:28,357 INFO L93 Difference]: Finished difference Result 1421 states and 1506 transitions. [2022-10-17 11:03:28,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-17 11:03:28,357 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2022-10-17 11:03:28,358 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 11:03:28,366 INFO L225 Difference]: With dead ends: 1421 [2022-10-17 11:03:28,367 INFO L226 Difference]: Without dead ends: 1421 [2022-10-17 11:03:28,367 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-17 11:03:28,369 INFO L413 NwaCegarLoop]: 898 mSDtfsCounter, 419 mSDsluCounter, 564 mSDsCounter, 0 mSdLazyCounter, 696 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 419 SdHoareTripleChecker+Valid, 1462 SdHoareTripleChecker+Invalid, 701 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 696 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2022-10-17 11:03:28,369 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [419 Valid, 1462 Invalid, 701 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 696 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2022-10-17 11:03:28,373 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1421 states. [2022-10-17 11:03:28,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1421 to 1232. [2022-10-17 11:03:28,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1232 states, 718 states have (on average 2.0807799442896937) internal successors, (1494), 1227 states have internal predecessors, (1494), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-10-17 11:03:28,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1232 states to 1232 states and 1500 transitions. [2022-10-17 11:03:28,414 INFO L78 Accepts]: Start accepts. Automaton has 1232 states and 1500 transitions. Word has length 3 [2022-10-17 11:03:28,414 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 11:03:28,414 INFO L495 AbstractCegarLoop]: Abstraction has 1232 states and 1500 transitions. [2022-10-17 11:03:28,415 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 11:03:28,415 INFO L276 IsEmpty]: Start isEmpty. Operand 1232 states and 1500 transitions. [2022-10-17 11:03:28,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-10-17 11:03:28,415 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 11:03:28,416 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-10-17 11:03:28,434 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967bbc0-5f47-4237-b443-4b80357e6714/bin/uautomizer-J5u9QxTXDZ/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-10-17 11:03:28,626 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967bbc0-5f47-4237-b443-4b80357e6714/bin/uautomizer-J5u9QxTXDZ/mathsat -unsat_core_generation=3 [2022-10-17 11:03:28,626 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 527 more)] === [2022-10-17 11:03:28,627 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 11:03:28,627 INFO L85 PathProgramCache]: Analyzing trace with hash 1466973012, now seen corresponding path program 1 times [2022-10-17 11:03:28,628 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-10-17 11:03:28,628 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [385305773] [2022-10-17 11:03:28,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 11:03:28,628 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-10-17 11:03:28,628 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967bbc0-5f47-4237-b443-4b80357e6714/bin/uautomizer-J5u9QxTXDZ/mathsat [2022-10-17 11:03:28,630 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967bbc0-5f47-4237-b443-4b80357e6714/bin/uautomizer-J5u9QxTXDZ/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-10-17 11:03:28,636 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967bbc0-5f47-4237-b443-4b80357e6714/bin/uautomizer-J5u9QxTXDZ/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-10-17 11:03:28,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:03:28,771 INFO L263 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 8 conjunts are in the unsatisfiable core [2022-10-17 11:03:28,774 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 11:03:28,787 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 [2022-10-17 11:03:28,793 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 [2022-10-17 11:03:28,857 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 11:03:28,858 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 14 [2022-10-17 11:03:28,872 INFO L356 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2022-10-17 11:03:28,872 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13 [2022-10-17 11:03:28,898 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 11:03:28,898 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-17 11:03:28,898 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-10-17 11:03:28,898 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [385305773] [2022-10-17 11:03:28,899 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [385305773] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 11:03:28,899 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 11:03:28,899 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-17 11:03:28,899 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2027341579] [2022-10-17 11:03:28,900 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 11:03:28,900 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-17 11:03:28,900 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-10-17 11:03:28,901 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-17 11:03:28,901 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-10-17 11:03:28,901 INFO L87 Difference]: Start difference. First operand 1232 states and 1500 transitions. Second operand has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 11:03:31,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 11:03:31,624 INFO L93 Difference]: Finished difference Result 1233 states and 1503 transitions. [2022-10-17 11:03:31,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-17 11:03:31,627 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2022-10-17 11:03:31,627 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 11:03:31,633 INFO L225 Difference]: With dead ends: 1233 [2022-10-17 11:03:31,634 INFO L226 Difference]: Without dead ends: 1233 [2022-10-17 11:03:31,634 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-10-17 11:03:31,635 INFO L413 NwaCegarLoop]: 347 mSDtfsCounter, 2009 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 812 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2012 SdHoareTripleChecker+Valid, 377 SdHoareTripleChecker+Invalid, 839 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 812 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2022-10-17 11:03:31,636 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2012 Valid, 377 Invalid, 839 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 812 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2022-10-17 11:03:31,639 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1233 states. [2022-10-17 11:03:31,658 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1233 to 1020. [2022-10-17 11:03:31,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1020 states, 516 states have (on average 2.0717054263565893) internal successors, (1069), 1015 states have internal predecessors, (1069), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-10-17 11:03:31,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1020 states to 1020 states and 1075 transitions. [2022-10-17 11:03:31,665 INFO L78 Accepts]: Start accepts. Automaton has 1020 states and 1075 transitions. Word has length 7 [2022-10-17 11:03:31,665 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 11:03:31,665 INFO L495 AbstractCegarLoop]: Abstraction has 1020 states and 1075 transitions. [2022-10-17 11:03:31,665 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 11:03:31,665 INFO L276 IsEmpty]: Start isEmpty. Operand 1020 states and 1075 transitions. [2022-10-17 11:03:31,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-10-17 11:03:31,666 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 11:03:31,666 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 11:03:31,685 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967bbc0-5f47-4237-b443-4b80357e6714/bin/uautomizer-J5u9QxTXDZ/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2022-10-17 11:03:31,880 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967bbc0-5f47-4237-b443-4b80357e6714/bin/uautomizer-J5u9QxTXDZ/mathsat -unsat_core_generation=3 [2022-10-17 11:03:31,881 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 527 more)] === [2022-10-17 11:03:31,881 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 11:03:31,881 INFO L85 PathProgramCache]: Analyzing trace with hash -1768476910, now seen corresponding path program 1 times [2022-10-17 11:03:31,882 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-10-17 11:03:31,882 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [767022807] [2022-10-17 11:03:31,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 11:03:31,882 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-10-17 11:03:31,882 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967bbc0-5f47-4237-b443-4b80357e6714/bin/uautomizer-J5u9QxTXDZ/mathsat [2022-10-17 11:03:31,883 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967bbc0-5f47-4237-b443-4b80357e6714/bin/uautomizer-J5u9QxTXDZ/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-10-17 11:03:31,884 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967bbc0-5f47-4237-b443-4b80357e6714/bin/uautomizer-J5u9QxTXDZ/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-10-17 11:03:31,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:03:32,003 INFO L263 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-17 11:03:32,005 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 11:03:32,011 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 [2022-10-17 11:03:32,022 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 11:03:32,023 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-17 11:03:32,023 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-10-17 11:03:32,023 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [767022807] [2022-10-17 11:03:32,023 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [767022807] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 11:03:32,024 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 11:03:32,024 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-17 11:03:32,024 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [416414842] [2022-10-17 11:03:32,024 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 11:03:32,025 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-17 11:03:32,025 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-10-17 11:03:32,025 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-17 11:03:32,026 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-17 11:03:32,026 INFO L87 Difference]: Start difference. First operand 1020 states and 1075 transitions. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 11:03:34,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 11:03:34,351 INFO L93 Difference]: Finished difference Result 1349 states and 1433 transitions. [2022-10-17 11:03:34,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-17 11:03:34,353 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2022-10-17 11:03:34,353 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 11:03:34,360 INFO L225 Difference]: With dead ends: 1349 [2022-10-17 11:03:34,360 INFO L226 Difference]: Without dead ends: 1349 [2022-10-17 11:03:34,360 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-17 11:03:34,361 INFO L413 NwaCegarLoop]: 923 mSDtfsCounter, 973 mSDsluCounter, 242 mSDsCounter, 0 mSdLazyCounter, 708 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 976 SdHoareTripleChecker+Valid, 1165 SdHoareTripleChecker+Invalid, 759 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 708 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-10-17 11:03:34,362 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [976 Valid, 1165 Invalid, 759 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 708 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2022-10-17 11:03:34,365 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1349 states. [2022-10-17 11:03:34,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1349 to 973. [2022-10-17 11:03:34,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 973 states, 516 states have (on average 1.9806201550387597) internal successors, (1022), 968 states have internal predecessors, (1022), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-10-17 11:03:34,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 973 states to 973 states and 1028 transitions. [2022-10-17 11:03:34,389 INFO L78 Accepts]: Start accepts. Automaton has 973 states and 1028 transitions. Word has length 8 [2022-10-17 11:03:34,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 11:03:34,390 INFO L495 AbstractCegarLoop]: Abstraction has 973 states and 1028 transitions. [2022-10-17 11:03:34,390 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 11:03:34,390 INFO L276 IsEmpty]: Start isEmpty. Operand 973 states and 1028 transitions. [2022-10-17 11:03:34,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-10-17 11:03:34,391 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 11:03:34,391 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 11:03:34,409 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967bbc0-5f47-4237-b443-4b80357e6714/bin/uautomizer-J5u9QxTXDZ/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2022-10-17 11:03:34,605 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967bbc0-5f47-4237-b443-4b80357e6714/bin/uautomizer-J5u9QxTXDZ/mathsat -unsat_core_generation=3 [2022-10-17 11:03:34,605 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 527 more)] === [2022-10-17 11:03:34,605 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 11:03:34,606 INFO L85 PathProgramCache]: Analyzing trace with hash -1768476909, now seen corresponding path program 1 times [2022-10-17 11:03:34,606 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-10-17 11:03:34,606 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [967626872] [2022-10-17 11:03:34,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 11:03:34,606 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-10-17 11:03:34,606 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967bbc0-5f47-4237-b443-4b80357e6714/bin/uautomizer-J5u9QxTXDZ/mathsat [2022-10-17 11:03:34,607 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967bbc0-5f47-4237-b443-4b80357e6714/bin/uautomizer-J5u9QxTXDZ/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-10-17 11:03:34,609 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967bbc0-5f47-4237-b443-4b80357e6714/bin/uautomizer-J5u9QxTXDZ/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-10-17 11:03:34,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:03:34,732 INFO L263 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 4 conjunts are in the unsatisfiable core [2022-10-17 11:03:34,736 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 11:03:34,762 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 [2022-10-17 11:03:34,795 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 11:03:34,795 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-17 11:03:34,796 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-10-17 11:03:34,796 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [967626872] [2022-10-17 11:03:34,796 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [967626872] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 11:03:34,796 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 11:03:34,796 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-17 11:03:34,796 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [598002251] [2022-10-17 11:03:34,797 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 11:03:34,797 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-17 11:03:34,797 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-10-17 11:03:34,797 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-17 11:03:34,798 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-17 11:03:34,798 INFO L87 Difference]: Start difference. First operand 973 states and 1028 transitions. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 11:03:38,016 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 11:03:38,016 INFO L93 Difference]: Finished difference Result 1428 states and 1515 transitions. [2022-10-17 11:03:38,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-17 11:03:38,017 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2022-10-17 11:03:38,017 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 11:03:38,025 INFO L225 Difference]: With dead ends: 1428 [2022-10-17 11:03:38,025 INFO L226 Difference]: Without dead ends: 1428 [2022-10-17 11:03:38,025 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-17 11:03:38,026 INFO L413 NwaCegarLoop]: 1129 mSDtfsCounter, 674 mSDsluCounter, 413 mSDsCounter, 0 mSdLazyCounter, 718 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 674 SdHoareTripleChecker+Valid, 1542 SdHoareTripleChecker+Invalid, 730 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 718 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2022-10-17 11:03:38,027 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [674 Valid, 1542 Invalid, 730 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 718 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2022-10-17 11:03:38,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1428 states. [2022-10-17 11:03:38,059 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1428 to 995. [2022-10-17 11:03:38,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 995 states, 548 states have (on average 1.967153284671533) internal successors, (1078), 990 states have internal predecessors, (1078), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-10-17 11:03:38,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 995 states to 995 states and 1084 transitions. [2022-10-17 11:03:38,065 INFO L78 Accepts]: Start accepts. Automaton has 995 states and 1084 transitions. Word has length 8 [2022-10-17 11:03:38,065 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 11:03:38,065 INFO L495 AbstractCegarLoop]: Abstraction has 995 states and 1084 transitions. [2022-10-17 11:03:38,066 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 11:03:38,066 INFO L276 IsEmpty]: Start isEmpty. Operand 995 states and 1084 transitions. [2022-10-17 11:03:38,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-10-17 11:03:38,066 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 11:03:38,066 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 11:03:38,081 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967bbc0-5f47-4237-b443-4b80357e6714/bin/uautomizer-J5u9QxTXDZ/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2022-10-17 11:03:38,278 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967bbc0-5f47-4237-b443-4b80357e6714/bin/uautomizer-J5u9QxTXDZ/mathsat -unsat_core_generation=3 [2022-10-17 11:03:38,278 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr526ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 527 more)] === [2022-10-17 11:03:38,279 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 11:03:38,279 INFO L85 PathProgramCache]: Analyzing trace with hash 871378613, now seen corresponding path program 1 times [2022-10-17 11:03:38,279 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-10-17 11:03:38,280 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1279697448] [2022-10-17 11:03:38,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 11:03:38,280 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-10-17 11:03:38,280 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967bbc0-5f47-4237-b443-4b80357e6714/bin/uautomizer-J5u9QxTXDZ/mathsat [2022-10-17 11:03:38,281 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967bbc0-5f47-4237-b443-4b80357e6714/bin/uautomizer-J5u9QxTXDZ/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-10-17 11:03:38,282 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967bbc0-5f47-4237-b443-4b80357e6714/bin/uautomizer-J5u9QxTXDZ/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2022-10-17 11:03:38,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:03:38,402 INFO L263 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-17 11:03:38,404 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 11:03:38,500 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 11:03:38,500 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-17 11:03:38,500 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-10-17 11:03:38,500 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1279697448] [2022-10-17 11:03:38,500 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1279697448] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 11:03:38,501 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 11:03:38,501 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-17 11:03:38,501 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2045361623] [2022-10-17 11:03:38,501 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 11:03:38,501 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-17 11:03:38,502 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-10-17 11:03:38,502 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-17 11:03:38,502 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-17 11:03:38,502 INFO L87 Difference]: Start difference. First operand 995 states and 1084 transitions. Second operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 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) [2022-10-17 11:03:39,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 11:03:39,227 INFO L93 Difference]: Finished difference Result 1446 states and 1568 transitions. [2022-10-17 11:03:39,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-17 11:03:39,228 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 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 [2022-10-17 11:03:39,229 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 11:03:39,236 INFO L225 Difference]: With dead ends: 1446 [2022-10-17 11:03:39,236 INFO L226 Difference]: Without dead ends: 1446 [2022-10-17 11:03:39,237 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-17 11:03:39,238 INFO L413 NwaCegarLoop]: 1080 mSDtfsCounter, 548 mSDsluCounter, 1845 mSDsCounter, 0 mSdLazyCounter, 240 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 550 SdHoareTripleChecker+Valid, 2925 SdHoareTripleChecker+Invalid, 247 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 240 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-10-17 11:03:39,238 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [550 Valid, 2925 Invalid, 247 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 240 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-10-17 11:03:39,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1446 states. [2022-10-17 11:03:39,263 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1446 to 1236. [2022-10-17 11:03:39,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1236 states, 789 states have (on average 1.944233206590621) internal successors, (1534), 1231 states have internal predecessors, (1534), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-10-17 11:03:39,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1236 states to 1236 states and 1540 transitions. [2022-10-17 11:03:39,271 INFO L78 Accepts]: Start accepts. Automaton has 1236 states and 1540 transitions. Word has length 11 [2022-10-17 11:03:39,272 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 11:03:39,272 INFO L495 AbstractCegarLoop]: Abstraction has 1236 states and 1540 transitions. [2022-10-17 11:03:39,272 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 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) [2022-10-17 11:03:39,272 INFO L276 IsEmpty]: Start isEmpty. Operand 1236 states and 1540 transitions. [2022-10-17 11:03:39,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-10-17 11:03:39,273 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 11:03:39,273 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 11:03:39,285 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967bbc0-5f47-4237-b443-4b80357e6714/bin/uautomizer-J5u9QxTXDZ/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2022-10-17 11:03:39,485 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967bbc0-5f47-4237-b443-4b80357e6714/bin/uautomizer-J5u9QxTXDZ/mathsat -unsat_core_generation=3 [2022-10-17 11:03:39,485 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr529ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 527 more)] === [2022-10-17 11:03:39,486 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 11:03:39,486 INFO L85 PathProgramCache]: Analyzing trace with hash 1242933253, now seen corresponding path program 1 times [2022-10-17 11:03:39,486 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-10-17 11:03:39,486 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1294361173] [2022-10-17 11:03:39,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 11:03:39,486 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-10-17 11:03:39,487 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967bbc0-5f47-4237-b443-4b80357e6714/bin/uautomizer-J5u9QxTXDZ/mathsat [2022-10-17 11:03:39,488 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967bbc0-5f47-4237-b443-4b80357e6714/bin/uautomizer-J5u9QxTXDZ/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-10-17 11:03:39,489 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967bbc0-5f47-4237-b443-4b80357e6714/bin/uautomizer-J5u9QxTXDZ/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2022-10-17 11:03:39,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:03:39,660 INFO L263 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 7 conjunts are in the unsatisfiable core [2022-10-17 11:03:39,667 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 11:03:39,676 INFO L173 IndexEqualityManager]: detected equality via solver [2022-10-17 11:03:39,679 INFO L173 IndexEqualityManager]: detected equality via solver [2022-10-17 11:03:39,687 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 38 [2022-10-17 11:03:39,739 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-10-17 11:03:39,740 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 62 treesize of output 22 [2022-10-17 11:03:39,774 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 11:03:39,774 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-17 11:03:39,774 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-10-17 11:03:39,775 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1294361173] [2022-10-17 11:03:39,775 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1294361173] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 11:03:39,775 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 11:03:39,775 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-17 11:03:39,775 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [755610903] [2022-10-17 11:03:39,776 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 11:03:39,776 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-17 11:03:39,776 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-10-17 11:03:39,777 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-17 11:03:39,777 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-17 11:03:39,777 INFO L87 Difference]: Start difference. First operand 1236 states and 1540 transitions. Second operand has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 11:03:41,069 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 11:03:41,069 INFO L93 Difference]: Finished difference Result 1592 states and 1955 transitions. [2022-10-17 11:03:41,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-17 11:03:41,070 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2022-10-17 11:03:41,070 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 11:03:41,077 INFO L225 Difference]: With dead ends: 1592 [2022-10-17 11:03:41,077 INFO L226 Difference]: Without dead ends: 1592 [2022-10-17 11:03:41,077 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-17 11:03:41,078 INFO L413 NwaCegarLoop]: 967 mSDtfsCounter, 352 mSDsluCounter, 1868 mSDsCounter, 0 mSdLazyCounter, 196 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 352 SdHoareTripleChecker+Valid, 2835 SdHoareTripleChecker+Invalid, 245 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 196 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 48 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-10-17 11:03:41,078 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [352 Valid, 2835 Invalid, 245 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 196 Invalid, 0 Unknown, 48 Unchecked, 1.2s Time] [2022-10-17 11:03:41,081 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1592 states. [2022-10-17 11:03:41,101 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1592 to 1235. [2022-10-17 11:03:41,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1235 states, 788 states have (on average 1.9441624365482233) internal successors, (1532), 1230 states have internal predecessors, (1532), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-10-17 11:03:41,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1235 states to 1235 states and 1538 transitions. [2022-10-17 11:03:41,109 INFO L78 Accepts]: Start accepts. Automaton has 1235 states and 1538 transitions. Word has length 12 [2022-10-17 11:03:41,109 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 11:03:41,109 INFO L495 AbstractCegarLoop]: Abstraction has 1235 states and 1538 transitions. [2022-10-17 11:03:41,110 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 11:03:41,110 INFO L276 IsEmpty]: Start isEmpty. Operand 1235 states and 1538 transitions. [2022-10-17 11:03:41,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-10-17 11:03:41,110 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 11:03:41,110 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 11:03:41,132 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967bbc0-5f47-4237-b443-4b80357e6714/bin/uautomizer-J5u9QxTXDZ/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2022-10-17 11:03:41,323 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967bbc0-5f47-4237-b443-4b80357e6714/bin/uautomizer-J5u9QxTXDZ/mathsat -unsat_core_generation=3 [2022-10-17 11:03:41,323 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr14REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 527 more)] === [2022-10-17 11:03:41,324 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 11:03:41,324 INFO L85 PathProgramCache]: Analyzing trace with hash -344619170, now seen corresponding path program 1 times [2022-10-17 11:03:41,324 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-10-17 11:03:41,324 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1138431647] [2022-10-17 11:03:41,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 11:03:41,325 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-10-17 11:03:41,325 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967bbc0-5f47-4237-b443-4b80357e6714/bin/uautomizer-J5u9QxTXDZ/mathsat [2022-10-17 11:03:41,326 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967bbc0-5f47-4237-b443-4b80357e6714/bin/uautomizer-J5u9QxTXDZ/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-10-17 11:03:41,365 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967bbc0-5f47-4237-b443-4b80357e6714/bin/uautomizer-J5u9QxTXDZ/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2022-10-17 11:03:41,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:03:41,499 INFO L263 TraceCheckSpWp]: Trace formula consists of 132 conjuncts, 2 conjunts are in the unsatisfiable core [2022-10-17 11:03:41,500 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 11:03:41,509 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 11:03:41,510 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-17 11:03:41,510 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-10-17 11:03:41,510 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1138431647] [2022-10-17 11:03:41,510 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1138431647] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 11:03:41,510 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 11:03:41,510 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-17 11:03:41,511 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1417358507] [2022-10-17 11:03:41,511 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 11:03:41,511 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-17 11:03:41,511 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-10-17 11:03:41,512 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-17 11:03:41,512 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-17 11:03:41,512 INFO L87 Difference]: Start difference. First operand 1235 states and 1538 transitions. Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 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) [2022-10-17 11:03:41,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 11:03:41,535 INFO L93 Difference]: Finished difference Result 1175 states and 1452 transitions. [2022-10-17 11:03:41,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-17 11:03:41,536 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 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 18 [2022-10-17 11:03:41,536 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 11:03:41,542 INFO L225 Difference]: With dead ends: 1175 [2022-10-17 11:03:41,543 INFO L226 Difference]: Without dead ends: 1175 [2022-10-17 11:03:41,543 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-17 11:03:41,544 INFO L413 NwaCegarLoop]: 971 mSDtfsCounter, 955 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 958 SdHoareTripleChecker+Valid, 993 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-17 11:03:41,544 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [958 Valid, 993 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-17 11:03:41,547 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1175 states. [2022-10-17 11:03:41,562 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1175 to 1175. [2022-10-17 11:03:41,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1175 states, 752 states have (on average 1.922872340425532) internal successors, (1446), 1170 states have internal predecessors, (1446), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-10-17 11:03:41,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1175 states to 1175 states and 1452 transitions. [2022-10-17 11:03:41,570 INFO L78 Accepts]: Start accepts. Automaton has 1175 states and 1452 transitions. Word has length 18 [2022-10-17 11:03:41,570 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 11:03:41,570 INFO L495 AbstractCegarLoop]: Abstraction has 1175 states and 1452 transitions. [2022-10-17 11:03:41,570 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 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) [2022-10-17 11:03:41,570 INFO L276 IsEmpty]: Start isEmpty. Operand 1175 states and 1452 transitions. [2022-10-17 11:03:41,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-10-17 11:03:41,571 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 11:03:41,571 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] [2022-10-17 11:03:41,584 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967bbc0-5f47-4237-b443-4b80357e6714/bin/uautomizer-J5u9QxTXDZ/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2022-10-17 11:03:41,783 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967bbc0-5f47-4237-b443-4b80357e6714/bin/uautomizer-J5u9QxTXDZ/mathsat -unsat_core_generation=3 [2022-10-17 11:03:41,783 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr38REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 527 more)] === [2022-10-17 11:03:41,785 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 11:03:41,785 INFO L85 PathProgramCache]: Analyzing trace with hash -466544200, now seen corresponding path program 1 times [2022-10-17 11:03:41,785 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-10-17 11:03:41,785 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [263569587] [2022-10-17 11:03:41,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 11:03:41,786 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-10-17 11:03:41,786 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967bbc0-5f47-4237-b443-4b80357e6714/bin/uautomizer-J5u9QxTXDZ/mathsat [2022-10-17 11:03:41,787 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967bbc0-5f47-4237-b443-4b80357e6714/bin/uautomizer-J5u9QxTXDZ/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-10-17 11:03:41,827 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7967bbc0-5f47-4237-b443-4b80357e6714/bin/uautomizer-J5u9QxTXDZ/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2022-10-17 11:03:41,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:03:41,972 INFO L263 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-17 11:03:41,974 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 11:03:41,993 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 11:03:41,993 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-17 11:03:41,993 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-10-17 11:03:41,993 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [263569587] [2022-10-17 11:03:41,993 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [263569587] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 11:03:41,993 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 11:03:41,994 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-17 11:03:41,994 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1086120338] [2022-10-17 11:03:41,994 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 11:03:41,994 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-17 11:03:41,994 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-10-17 11:03:41,995 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-17 11:03:41,995 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-17 11:03:41,995 INFO L87 Difference]: Start difference. First operand 1175 states and 1452 transitions. Second operand has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 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)