./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/weaver/parallel-parallel-sum-1-dsl.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 6b4ec56b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e59ddf52-0662-418b-87ab-3f07748f6658/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e59ddf52-0662-418b-87ab-3f07748f6658/bin/uautomizer-ug76WZFUDN/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e59ddf52-0662-418b-87ab-3f07748f6658/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e59ddf52-0662-418b-87ab-3f07748f6658/bin/uautomizer-ug76WZFUDN/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/weaver/parallel-parallel-sum-1-dsl.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e59ddf52-0662-418b-87ab-3f07748f6658/bin/uautomizer-ug76WZFUDN/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e59ddf52-0662-418b-87ab-3f07748f6658/bin/uautomizer-ug76WZFUDN --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 2b8fef41c3119c5f4fc9586ebd31a4ff7152be41d9f2f8da139e8cd34cf0da86 --- 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-6b4ec56 [2022-11-20 12:18:52,515 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 12:18:52,518 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 12:18:52,543 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 12:18:52,544 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 12:18:52,545 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 12:18:52,547 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 12:18:52,549 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 12:18:52,552 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 12:18:52,553 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 12:18:52,554 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 12:18:52,556 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 12:18:52,556 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 12:18:52,558 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 12:18:52,559 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 12:18:52,561 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 12:18:52,562 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 12:18:52,563 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 12:18:52,566 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 12:18:52,568 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 12:18:52,570 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 12:18:52,582 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 12:18:52,585 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 12:18:52,588 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 12:18:52,597 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 12:18:52,598 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 12:18:52,603 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 12:18:52,604 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 12:18:52,606 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 12:18:52,609 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 12:18:52,610 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 12:18:52,614 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 12:18:52,616 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 12:18:52,617 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 12:18:52,619 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 12:18:52,619 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 12:18:52,620 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 12:18:52,620 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 12:18:52,621 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 12:18:52,622 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 12:18:52,623 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 12:18:52,624 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e59ddf52-0662-418b-87ab-3f07748f6658/bin/uautomizer-ug76WZFUDN/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2022-11-20 12:18:52,652 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 12:18:52,652 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 12:18:52,653 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 12:18:52,653 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 12:18:52,654 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 12:18:52,654 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 12:18:52,655 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 12:18:52,656 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 12:18:52,656 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 12:18:52,656 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 12:18:52,657 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-20 12:18:52,657 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-20 12:18:52,657 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 12:18:52,657 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-20 12:18:52,658 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 12:18:52,658 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-11-20 12:18:52,658 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-11-20 12:18:52,658 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-11-20 12:18:52,659 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 12:18:52,659 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-20 12:18:52,659 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-20 12:18:52,660 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 12:18:52,660 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 12:18:52,660 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 12:18:52,661 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 12:18:52,661 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 12:18:52,661 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 12:18:52,661 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 12:18:52,662 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-20 12:18:52,662 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 12:18:52,662 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_e59ddf52-0662-418b-87ab-3f07748f6658/bin/uautomizer-ug76WZFUDN/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e59ddf52-0662-418b-87ab-3f07748f6658/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2b8fef41c3119c5f4fc9586ebd31a4ff7152be41d9f2f8da139e8cd34cf0da86 [2022-11-20 12:18:53,001 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 12:18:53,028 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 12:18:53,032 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 12:18:53,033 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 12:18:53,034 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 12:18:53,036 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e59ddf52-0662-418b-87ab-3f07748f6658/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/weaver/parallel-parallel-sum-1-dsl.wvr.c [2022-11-20 12:18:57,017 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 12:18:57,243 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 12:18:57,244 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e59ddf52-0662-418b-87ab-3f07748f6658/sv-benchmarks/c/weaver/parallel-parallel-sum-1-dsl.wvr.c [2022-11-20 12:18:57,259 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e59ddf52-0662-418b-87ab-3f07748f6658/bin/uautomizer-ug76WZFUDN/data/6ca97f33f/70db6a0decaa4703862459930f0f8ecb/FLAG880c299f4 [2022-11-20 12:18:57,285 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e59ddf52-0662-418b-87ab-3f07748f6658/bin/uautomizer-ug76WZFUDN/data/6ca97f33f/70db6a0decaa4703862459930f0f8ecb [2022-11-20 12:18:57,291 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 12:18:57,295 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 12:18:57,299 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 12:18:57,299 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 12:18:57,304 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 12:18:57,305 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 12:18:57" (1/1) ... [2022-11-20 12:18:57,306 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@138786ea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:18:57, skipping insertion in model container [2022-11-20 12:18:57,307 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 12:18:57" (1/1) ... [2022-11-20 12:18:57,316 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 12:18:57,345 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 12:18:57,575 WARN L237 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_e59ddf52-0662-418b-87ab-3f07748f6658/sv-benchmarks/c/weaver/parallel-parallel-sum-1-dsl.wvr.c[4372,4385] [2022-11-20 12:18:57,598 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 12:18:57,622 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) [2022-11-20 12:18:57,623 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@762265ad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:18:57, skipping insertion in model container [2022-11-20 12:18:57,624 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 12:18:57,624 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2022-11-20 12:18:57,627 INFO L158 Benchmark]: Toolchain (without parser) took 331.38ms. Allocated memory is still 161.5MB. Free memory was 123.4MB in the beginning and 112.9MB in the end (delta: 10.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-20 12:18:57,628 INFO L158 Benchmark]: CDTParser took 0.40ms. Allocated memory is still 109.1MB. Free memory is still 61.0MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 12:18:57,630 INFO L158 Benchmark]: CACSL2BoogieTranslator took 325.45ms. Allocated memory is still 161.5MB. Free memory was 123.4MB in the beginning and 112.9MB in the end (delta: 10.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-20 12:18:57,632 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.40ms. Allocated memory is still 109.1MB. Free memory is still 61.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 325.45ms. Allocated memory is still 161.5MB. Free memory was 123.4MB in the beginning and 112.9MB in the end (delta: 10.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 183]: Unsupported Syntax Found a cast between two array/pointer types of different sizes while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e59ddf52-0662-418b-87ab-3f07748f6658/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e59ddf52-0662-418b-87ab-3f07748f6658/bin/uautomizer-ug76WZFUDN/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e59ddf52-0662-418b-87ab-3f07748f6658/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e59ddf52-0662-418b-87ab-3f07748f6658/bin/uautomizer-ug76WZFUDN/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/weaver/parallel-parallel-sum-1-dsl.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e59ddf52-0662-418b-87ab-3f07748f6658/bin/uautomizer-ug76WZFUDN/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e59ddf52-0662-418b-87ab-3f07748f6658/bin/uautomizer-ug76WZFUDN --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 2b8fef41c3119c5f4fc9586ebd31a4ff7152be41d9f2f8da139e8cd34cf0da86 --- 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-6b4ec56 [2022-11-20 12:19:00,452 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 12:19:00,456 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 12:19:00,503 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 12:19:00,503 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 12:19:00,505 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 12:19:00,511 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 12:19:00,520 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 12:19:00,523 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 12:19:00,524 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 12:19:00,525 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 12:19:00,526 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 12:19:00,527 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 12:19:00,528 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 12:19:00,530 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 12:19:00,540 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 12:19:00,545 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 12:19:00,547 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 12:19:00,549 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 12:19:00,551 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 12:19:00,553 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 12:19:00,555 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 12:19:00,557 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 12:19:00,558 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 12:19:00,563 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 12:19:00,564 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 12:19:00,564 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 12:19:00,565 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 12:19:00,566 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 12:19:00,567 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 12:19:00,568 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 12:19:00,569 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 12:19:00,570 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 12:19:00,571 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 12:19:00,588 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 12:19:00,589 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 12:19:00,590 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 12:19:00,601 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 12:19:00,601 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 12:19:00,603 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 12:19:00,604 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 12:19:00,605 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e59ddf52-0662-418b-87ab-3f07748f6658/bin/uautomizer-ug76WZFUDN/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2022-11-20 12:19:00,637 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 12:19:00,637 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 12:19:00,637 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 12:19:00,638 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 12:19:00,639 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 12:19:00,639 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 12:19:00,640 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 12:19:00,640 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 12:19:00,640 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 12:19:00,641 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 12:19:00,641 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-20 12:19:00,641 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-20 12:19:00,642 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 12:19:00,642 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-20 12:19:00,642 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 12:19:00,642 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-11-20 12:19:00,643 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-11-20 12:19:00,643 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-11-20 12:19:00,643 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 12:19:00,643 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-20 12:19:00,644 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-20 12:19:00,644 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-20 12:19:00,644 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-20 12:19:00,644 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 12:19:00,645 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 12:19:00,645 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 12:19:00,645 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 12:19:00,646 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 12:19:00,646 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 12:19:00,646 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 12:19:00,646 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-11-20 12:19:00,647 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-20 12:19:00,647 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-20 12:19:00,647 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_e59ddf52-0662-418b-87ab-3f07748f6658/bin/uautomizer-ug76WZFUDN/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e59ddf52-0662-418b-87ab-3f07748f6658/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2b8fef41c3119c5f4fc9586ebd31a4ff7152be41d9f2f8da139e8cd34cf0da86 [2022-11-20 12:19:01,123 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 12:19:01,159 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 12:19:01,162 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 12:19:01,164 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 12:19:01,166 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 12:19:01,168 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e59ddf52-0662-418b-87ab-3f07748f6658/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/weaver/parallel-parallel-sum-1-dsl.wvr.c [2022-11-20 12:19:05,098 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 12:19:05,463 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 12:19:05,464 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e59ddf52-0662-418b-87ab-3f07748f6658/sv-benchmarks/c/weaver/parallel-parallel-sum-1-dsl.wvr.c [2022-11-20 12:19:05,474 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e59ddf52-0662-418b-87ab-3f07748f6658/bin/uautomizer-ug76WZFUDN/data/85ecc48f5/e52f96e7039c476a84eb7358980f8d73/FLAGca0fa765f [2022-11-20 12:19:05,504 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e59ddf52-0662-418b-87ab-3f07748f6658/bin/uautomizer-ug76WZFUDN/data/85ecc48f5/e52f96e7039c476a84eb7358980f8d73 [2022-11-20 12:19:05,507 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 12:19:05,512 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 12:19:05,514 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 12:19:05,514 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 12:19:05,519 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 12:19:05,520 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 12:19:05" (1/1) ... [2022-11-20 12:19:05,522 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3aaa0dd7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:19:05, skipping insertion in model container [2022-11-20 12:19:05,522 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 12:19:05" (1/1) ... [2022-11-20 12:19:05,532 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 12:19:05,560 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 12:19:05,806 WARN L237 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_e59ddf52-0662-418b-87ab-3f07748f6658/sv-benchmarks/c/weaver/parallel-parallel-sum-1-dsl.wvr.c[4372,4385] [2022-11-20 12:19:05,823 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 12:19:05,842 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-11-20 12:19:05,849 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 12:19:05,876 WARN L237 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_e59ddf52-0662-418b-87ab-3f07748f6658/sv-benchmarks/c/weaver/parallel-parallel-sum-1-dsl.wvr.c[4372,4385] [2022-11-20 12:19:05,883 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 12:19:05,898 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 12:19:05,973 WARN L237 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_e59ddf52-0662-418b-87ab-3f07748f6658/sv-benchmarks/c/weaver/parallel-parallel-sum-1-dsl.wvr.c[4372,4385] [2022-11-20 12:19:05,979 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 12:19:06,005 INFO L208 MainTranslator]: Completed translation [2022-11-20 12:19:06,006 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:19:06 WrapperNode [2022-11-20 12:19:06,006 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 12:19:06,008 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 12:19:06,008 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 12:19:06,008 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 12:19:06,018 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:19:06" (1/1) ... [2022-11-20 12:19:06,059 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:19:06" (1/1) ... [2022-11-20 12:19:06,132 INFO L138 Inliner]: procedures = 31, calls = 95, calls flagged for inlining = 21, calls inlined = 27, statements flattened = 275 [2022-11-20 12:19:06,133 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 12:19:06,134 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 12:19:06,134 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 12:19:06,134 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 12:19:06,147 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:19:06" (1/1) ... [2022-11-20 12:19:06,148 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:19:06" (1/1) ... [2022-11-20 12:19:06,156 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:19:06" (1/1) ... [2022-11-20 12:19:06,156 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:19:06" (1/1) ... [2022-11-20 12:19:06,173 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:19:06" (1/1) ... [2022-11-20 12:19:06,179 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:19:06" (1/1) ... [2022-11-20 12:19:06,183 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:19:06" (1/1) ... [2022-11-20 12:19:06,185 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:19:06" (1/1) ... [2022-11-20 12:19:06,191 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 12:19:06,192 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 12:19:06,193 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 12:19:06,193 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 12:19:06,194 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:19:06" (1/1) ... [2022-11-20 12:19:06,203 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 12:19:06,226 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e59ddf52-0662-418b-87ab-3f07748f6658/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:19:06,241 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e59ddf52-0662-418b-87ab-3f07748f6658/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 12:19:06,254 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e59ddf52-0662-418b-87ab-3f07748f6658/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 12:19:06,343 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 12:19:06,344 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-20 12:19:06,344 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-20 12:19:06,347 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-11-20 12:19:06,347 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-11-20 12:19:06,348 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-11-20 12:19:06,348 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-11-20 12:19:06,361 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-11-20 12:19:06,361 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-11-20 12:19:06,362 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-11-20 12:19:06,362 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2022-11-20 12:19:06,362 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2022-11-20 12:19:06,363 INFO L130 BoogieDeclarations]: Found specification of procedure thread5 [2022-11-20 12:19:06,363 INFO L138 BoogieDeclarations]: Found implementation of procedure thread5 [2022-11-20 12:19:06,363 INFO L130 BoogieDeclarations]: Found specification of procedure thread6 [2022-11-20 12:19:06,363 INFO L138 BoogieDeclarations]: Found implementation of procedure thread6 [2022-11-20 12:19:06,363 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-20 12:19:06,365 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-20 12:19:06,365 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-20 12:19:06,366 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 12:19:06,366 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 12:19:06,366 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-20 12:19:06,366 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-11-20 12:19:06,369 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-20 12:19:06,570 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 12:19:06,574 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 12:19:07,910 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 12:19:08,168 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 12:19:08,168 INFO L300 CfgBuilder]: Removed 5 assume(true) statements. [2022-11-20 12:19:08,172 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 12:19:08 BoogieIcfgContainer [2022-11-20 12:19:08,172 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 12:19:08,175 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 12:19:08,175 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 12:19:08,179 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 12:19:08,180 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 12:19:05" (1/3) ... [2022-11-20 12:19:08,181 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b2516d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 12:19:08, skipping insertion in model container [2022-11-20 12:19:08,181 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:19:06" (2/3) ... [2022-11-20 12:19:08,182 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b2516d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 12:19:08, skipping insertion in model container [2022-11-20 12:19:08,182 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 12:19:08" (3/3) ... [2022-11-20 12:19:08,184 INFO L112 eAbstractionObserver]: Analyzing ICFG parallel-parallel-sum-1-dsl.wvr.c [2022-11-20 12:19:08,209 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 12:19:08,210 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 36 error locations. [2022-11-20 12:19:08,210 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-20 12:19:08,447 INFO L144 ThreadInstanceAdder]: Constructed 18 joinOtherThreadTransitions. [2022-11-20 12:19:08,521 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-20 12:19:08,557 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 293 places, 292 transitions, 656 flow [2022-11-20 12:19:08,570 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 293 places, 292 transitions, 656 flow [2022-11-20 12:19:08,573 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 293 places, 292 transitions, 656 flow [2022-11-20 12:19:08,807 INFO L130 PetriNetUnfolder]: 18/260 cut-off events. [2022-11-20 12:19:08,807 INFO L131 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2022-11-20 12:19:08,817 INFO L83 FinitePrefix]: Finished finitePrefix Result has 289 conditions, 260 events. 18/260 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 456 event pairs, 0 based on Foata normal form. 0/206 useless extension candidates. Maximal degree in co-relation 219. Up to 3 conditions per place. [2022-11-20 12:19:08,825 INFO L119 LiptonReduction]: Number of co-enabled transitions 11976 [2022-11-20 12:19:44,352 INFO L134 LiptonReduction]: Checked pairs total: 60265 [2022-11-20 12:19:44,353 INFO L136 LiptonReduction]: Total number of compositions: 240 [2022-11-20 12:19:44,363 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 131 places, 121 transitions, 314 flow [2022-11-20 12:19:52,199 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 113236 states, 108024 states have (on average 5.811541879582315) internal successors, (627786), 113235 states have internal predecessors, (627786), 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) [2022-11-20 12:19:52,247 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 12:19:52,255 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;@55e4492c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 12:19:52,255 INFO L358 AbstractCegarLoop]: Starting to check reachability of 70 error locations. [2022-11-20 12:19:52,434 INFO L276 IsEmpty]: Start isEmpty. Operand has 113236 states, 108024 states have (on average 5.811541879582315) internal successors, (627786), 113235 states have internal predecessors, (627786), 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) [2022-11-20 12:19:52,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2022-11-20 12:19:52,441 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:19:52,442 INFO L195 NwaCegarLoop]: trace histogram [1, 1] [2022-11-20 12:19:52,443 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 67 more)] === [2022-11-20 12:19:52,449 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:19:52,450 INFO L85 PathProgramCache]: Analyzing trace with hash 46036, now seen corresponding path program 1 times [2022-11-20 12:19:52,466 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 12:19:52,466 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1050076484] [2022-11-20 12:19:52,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:19:52,467 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:19:52,468 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e59ddf52-0662-418b-87ab-3f07748f6658/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 12:19:52,474 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e59ddf52-0662-418b-87ab-3f07748f6658/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 12:19:52,483 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e59ddf52-0662-418b-87ab-3f07748f6658/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-11-20 12:19:52,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:52,603 INFO L263 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-20 12:19:52,622 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:19:52,877 INFO L321 Elim1Store]: treesize reduction 39, result has 40.0 percent of original size [2022-11-20 12:19:52,878 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 12 treesize of output 33 [2022-11-20 12:19:52,912 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:19:52,912 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 12:19:52,913 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 12:19:52,914 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1050076484] [2022-11-20 12:19:52,916 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1050076484] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:19:52,916 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:19:52,916 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-20 12:19:52,918 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1916900883] [2022-11-20 12:19:52,919 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:19:52,925 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 12:19:52,927 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 12:19:52,967 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 12:19:52,968 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:19:53,775 INFO L87 Difference]: Start difference. First operand has 113236 states, 108024 states have (on average 5.811541879582315) internal successors, (627786), 113235 states have internal predecessors, (627786), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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) [2022-11-20 12:19:58,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:19:58,081 INFO L93 Difference]: Finished difference Result 113234 states and 627784 transitions. [2022-11-20 12:19:58,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 12:19:58,084 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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 2 [2022-11-20 12:19:58,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:20:00,508 INFO L225 Difference]: With dead ends: 113234 [2022-11-20 12:20:00,509 INFO L226 Difference]: Without dead ends: 113234 [2022-11-20 12:20:00,510 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:20:00,514 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 83 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 155 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 34 SdHoareTripleChecker+Invalid, 159 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 155 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-11-20 12:20:00,516 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [83 Valid, 34 Invalid, 159 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 155 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-11-20 12:20:01,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113234 states. [2022-11-20 12:20:07,951 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113234 to 113234. [2022-11-20 12:20:08,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 113234 states, 108024 states have (on average 5.811523365178108) internal successors, (627784), 113233 states have internal predecessors, (627784), 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) [2022-11-20 12:20:10,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113234 states to 113234 states and 627784 transitions. [2022-11-20 12:20:10,996 INFO L78 Accepts]: Start accepts. Automaton has 113234 states and 627784 transitions. Word has length 2 [2022-11-20 12:20:10,997 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:20:10,997 INFO L495 AbstractCegarLoop]: Abstraction has 113234 states and 627784 transitions. [2022-11-20 12:20:10,998 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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) [2022-11-20 12:20:10,998 INFO L276 IsEmpty]: Start isEmpty. Operand 113234 states and 627784 transitions. [2022-11-20 12:20:10,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2022-11-20 12:20:10,998 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:20:10,999 INFO L195 NwaCegarLoop]: trace histogram [1, 1] [2022-11-20 12:20:11,015 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e59ddf52-0662-418b-87ab-3f07748f6658/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-11-20 12:20:11,210 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e59ddf52-0662-418b-87ab-3f07748f6658/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:20:11,211 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 67 more)] === [2022-11-20 12:20:11,212 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:20:11,212 INFO L85 PathProgramCache]: Analyzing trace with hash 46037, now seen corresponding path program 1 times [2022-11-20 12:20:11,213 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 12:20:11,213 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1028714922] [2022-11-20 12:20:11,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:20:11,214 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:20:11,214 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e59ddf52-0662-418b-87ab-3f07748f6658/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 12:20:11,216 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e59ddf52-0662-418b-87ab-3f07748f6658/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 12:20:11,221 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e59ddf52-0662-418b-87ab-3f07748f6658/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-11-20 12:20:11,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:20:11,346 INFO L263 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-20 12:20:11,349 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:20:11,470 INFO L321 Elim1Store]: treesize reduction 37, result has 37.3 percent of original size [2022-11-20 12:20:11,471 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 14 treesize of output 29 [2022-11-20 12:20:11,511 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:20:11,512 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 12:20:11,512 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 12:20:11,512 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1028714922] [2022-11-20 12:20:11,513 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1028714922] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:20:11,513 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:20:11,513 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-20 12:20:11,513 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [575762061] [2022-11-20 12:20:11,514 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:20:11,515 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 12:20:11,515 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 12:20:11,516 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 12:20:11,516 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:20:11,516 INFO L87 Difference]: Start difference. First operand 113234 states and 627784 transitions. Second operand has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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) [2022-11-20 12:20:15,346 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:20:15,347 INFO L93 Difference]: Finished difference Result 113248 states and 627812 transitions. [2022-11-20 12:20:15,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 12:20:15,348 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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 2 [2022-11-20 12:20:15,348 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:20:17,833 INFO L225 Difference]: With dead ends: 113248 [2022-11-20 12:20:17,834 INFO L226 Difference]: Without dead ends: 113248 [2022-11-20 12:20:17,834 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:20:17,835 INFO L413 NwaCegarLoop]: 30 mSDtfsCounter, 13 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 148 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 47 SdHoareTripleChecker+Invalid, 148 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 148 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-20 12:20:17,836 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 47 Invalid, 148 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 148 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-20 12:20:18,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113248 states. [2022-11-20 12:20:23,612 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113248 to 113235. [2022-11-20 12:20:23,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 113235 states, 108025 states have (on average 5.811506595695441) internal successors, (627788), 113234 states have internal predecessors, (627788), 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) [2022-11-20 12:20:26,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113235 states to 113235 states and 627788 transitions. [2022-11-20 12:20:26,225 INFO L78 Accepts]: Start accepts. Automaton has 113235 states and 627788 transitions. Word has length 2 [2022-11-20 12:20:26,225 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:20:26,225 INFO L495 AbstractCegarLoop]: Abstraction has 113235 states and 627788 transitions. [2022-11-20 12:20:26,225 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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) [2022-11-20 12:20:26,225 INFO L276 IsEmpty]: Start isEmpty. Operand 113235 states and 627788 transitions. [2022-11-20 12:20:26,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2022-11-20 12:20:26,226 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:20:26,226 INFO L195 NwaCegarLoop]: trace histogram [1, 1] [2022-11-20 12:20:26,239 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e59ddf52-0662-418b-87ab-3f07748f6658/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2022-11-20 12:20:26,426 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e59ddf52-0662-418b-87ab-3f07748f6658/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:20:26,427 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 67 more)] === [2022-11-20 12:20:26,427 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:20:26,428 INFO L85 PathProgramCache]: Analyzing trace with hash 46216, now seen corresponding path program 1 times [2022-11-20 12:20:26,428 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 12:20:26,428 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [359692801] [2022-11-20 12:20:26,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:20:26,429 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:20:26,429 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e59ddf52-0662-418b-87ab-3f07748f6658/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 12:20:26,430 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e59ddf52-0662-418b-87ab-3f07748f6658/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 12:20:26,435 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e59ddf52-0662-418b-87ab-3f07748f6658/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-11-20 12:20:26,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:20:26,551 INFO L263 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-20 12:20:26,554 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:20:26,611 INFO L321 Elim1Store]: treesize reduction 50, result has 23.1 percent of original size [2022-11-20 12:20:26,611 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 3 case distinctions, treesize of input 22 treesize of output 29 [2022-11-20 12:20:26,680 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:20:26,680 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 12:20:26,681 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 12:20:26,681 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [359692801] [2022-11-20 12:20:26,681 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [359692801] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:20:26,681 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:20:26,681 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-20 12:20:26,682 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [172393703] [2022-11-20 12:20:26,682 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:20:26,682 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 12:20:26,682 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 12:20:26,683 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 12:20:26,683 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:20:26,683 INFO L87 Difference]: Start difference. First operand 113235 states and 627788 transitions. Second operand has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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) [2022-11-20 12:20:29,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:20:29,569 INFO L93 Difference]: Finished difference Result 113235 states and 627787 transitions. [2022-11-20 12:20:29,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 12:20:29,570 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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 2 [2022-11-20 12:20:29,570 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:20:31,874 INFO L225 Difference]: With dead ends: 113235 [2022-11-20 12:20:31,874 INFO L226 Difference]: Without dead ends: 113235 [2022-11-20 12:20:31,876 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:20:31,878 INFO L413 NwaCegarLoop]: 34 mSDtfsCounter, 0 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 51 SdHoareTripleChecker+Invalid, 141 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 80 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-20 12:20:31,878 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 51 Invalid, 141 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 61 Invalid, 0 Unknown, 80 Unchecked, 0.3s Time] [2022-11-20 12:20:32,188 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113235 states. [2022-11-20 12:20:37,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113235 to 113235. [2022-11-20 12:20:37,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 113235 states, 108025 states have (on average 5.8114973385790325) internal successors, (627787), 113234 states have internal predecessors, (627787), 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)