./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/pthread/twostage_3-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58e6b1ae-6b61-4537-a420-63c2153e3f30/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58e6b1ae-6b61-4537-a420-63c2153e3f30/bin/utaipan-gh47qXpMRh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58e6b1ae-6b61-4537-a420-63c2153e3f30/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58e6b1ae-6b61-4537-a420-63c2153e3f30/bin/utaipan-gh47qXpMRh/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/pthread/twostage_3-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58e6b1ae-6b61-4537-a420-63c2153e3f30/bin/utaipan-gh47qXpMRh/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58e6b1ae-6b61-4537-a420-63c2153e3f30/bin/utaipan-gh47qXpMRh --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 9e65812efd79e833978ab1548160841e061a451f72b6ff490ed9b7c0a593a91c --- 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-2329fc7 [2022-12-14 06:17:09,542 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 06:17:09,544 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 06:17:09,558 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 06:17:09,559 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 06:17:09,559 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 06:17:09,560 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 06:17:09,561 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 06:17:09,562 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 06:17:09,563 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 06:17:09,563 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 06:17:09,564 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 06:17:09,564 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 06:17:09,565 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 06:17:09,565 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 06:17:09,566 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 06:17:09,566 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 06:17:09,567 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 06:17:09,568 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 06:17:09,569 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 06:17:09,570 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 06:17:09,571 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 06:17:09,572 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 06:17:09,572 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 06:17:09,574 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 06:17:09,575 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 06:17:09,575 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 06:17:09,575 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 06:17:09,576 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 06:17:09,576 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 06:17:09,577 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 06:17:09,577 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 06:17:09,578 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 06:17:09,578 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 06:17:09,579 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 06:17:09,579 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 06:17:09,579 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 06:17:09,579 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 06:17:09,580 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 06:17:09,580 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 06:17:09,580 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 06:17:09,581 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58e6b1ae-6b61-4537-a420-63c2153e3f30/bin/utaipan-gh47qXpMRh/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2022-12-14 06:17:09,598 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 06:17:09,598 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 06:17:09,598 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 06:17:09,599 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 06:17:09,599 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 06:17:09,599 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 06:17:09,599 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 06:17:09,599 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 06:17:09,600 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 06:17:09,600 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 06:17:09,600 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 06:17:09,600 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 06:17:09,600 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 06:17:09,600 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 06:17:09,600 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 06:17:09,600 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 06:17:09,601 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 06:17:09,601 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 06:17:09,601 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-14 06:17:09,601 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-14 06:17:09,601 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 06:17:09,602 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 06:17:09,602 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-14 06:17:09,602 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 06:17:09,602 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 06:17:09,602 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 06:17:09,602 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-12-14 06:17:09,602 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-12-14 06:17:09,602 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-12-14 06:17:09,602 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 06:17:09,603 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-12-14 06:17:09,603 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 06:17:09,603 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 06:17:09,603 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 06:17:09,603 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 06:17:09,603 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 06:17:09,603 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 06:17:09,603 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 06:17:09,604 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 06:17:09,604 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 06:17:09,604 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 06:17:09,604 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 06:17:09,604 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_58e6b1ae-6b61-4537-a420-63c2153e3f30/bin/utaipan-gh47qXpMRh/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58e6b1ae-6b61-4537-a420-63c2153e3f30/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9e65812efd79e833978ab1548160841e061a451f72b6ff490ed9b7c0a593a91c [2022-12-14 06:17:09,812 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 06:17:09,830 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 06:17:09,832 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 06:17:09,833 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 06:17:09,833 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 06:17:09,834 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58e6b1ae-6b61-4537-a420-63c2153e3f30/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/pthread/twostage_3-2.i [2022-12-14 06:17:12,473 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 06:17:12,699 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 06:17:12,700 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58e6b1ae-6b61-4537-a420-63c2153e3f30/sv-benchmarks/c/pthread/twostage_3-2.i [2022-12-14 06:17:12,722 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58e6b1ae-6b61-4537-a420-63c2153e3f30/bin/utaipan-gh47qXpMRh/data/56c7d3aae/54ef6a59a9364862a6fab7e40d5a4891/FLAG69fa0f9bd [2022-12-14 06:17:12,735 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58e6b1ae-6b61-4537-a420-63c2153e3f30/bin/utaipan-gh47qXpMRh/data/56c7d3aae/54ef6a59a9364862a6fab7e40d5a4891 [2022-12-14 06:17:12,737 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 06:17:12,739 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 06:17:12,740 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 06:17:12,740 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 06:17:12,743 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 06:17:12,744 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 06:17:12" (1/1) ... [2022-12-14 06:17:12,745 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3c712682 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:17:12, skipping insertion in model container [2022-12-14 06:17:12,745 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 06:17:12" (1/1) ... [2022-12-14 06:17:12,753 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 06:17:12,801 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 06:17:13,288 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-12-14 06:17:13,290 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_58e6b1ae-6b61-4537-a420-63c2153e3f30/sv-benchmarks/c/pthread/twostage_3-2.i[58991,59004] [2022-12-14 06:17:13,296 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-12-14 06:17:13,300 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-12-14 06:17:13,301 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-12-14 06:17:13,305 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-12-14 06:17:13,308 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-12-14 06:17:13,310 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-12-14 06:17:13,311 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-12-14 06:17:13,314 WARN L1576 CHandler]: Possible shadowing of function lock [2022-12-14 06:17:13,314 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-12-14 06:17:13,315 WARN L1576 CHandler]: Possible shadowing of function lock [2022-12-14 06:17:13,315 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-12-14 06:17:13,316 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 06:17:13,326 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) [2022-12-14 06:17:13,327 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@6b2ba145 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:17:13, skipping insertion in model container [2022-12-14 06:17:13,327 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 06:17:13,327 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2022-12-14 06:17:13,329 INFO L158 Benchmark]: Toolchain (without parser) took 589.28ms. Allocated memory is still 119.5MB. Free memory was 81.4MB in the beginning and 64.6MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-12-14 06:17:13,329 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 119.5MB. Free memory is still 91.2MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 06:17:13,330 INFO L158 Benchmark]: CACSL2BoogieTranslator took 587.07ms. Allocated memory is still 119.5MB. Free memory was 81.4MB in the beginning and 64.6MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-12-14 06:17:13,331 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21ms. Allocated memory is still 119.5MB. Free memory is still 91.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 587.07ms. Allocated memory is still 119.5MB. Free memory was 81.4MB in the beginning and 64.6MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 1284]: Unsupported Syntax Found a cast between two array/pointer types of different sizes while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58e6b1ae-6b61-4537-a420-63c2153e3f30/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58e6b1ae-6b61-4537-a420-63c2153e3f30/bin/utaipan-gh47qXpMRh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58e6b1ae-6b61-4537-a420-63c2153e3f30/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58e6b1ae-6b61-4537-a420-63c2153e3f30/bin/utaipan-gh47qXpMRh/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/pthread/twostage_3-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58e6b1ae-6b61-4537-a420-63c2153e3f30/bin/utaipan-gh47qXpMRh/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58e6b1ae-6b61-4537-a420-63c2153e3f30/bin/utaipan-gh47qXpMRh --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 9e65812efd79e833978ab1548160841e061a451f72b6ff490ed9b7c0a593a91c --- 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-2329fc7 [2022-12-14 06:17:14,827 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 06:17:14,828 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 06:17:14,842 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 06:17:14,842 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 06:17:14,843 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 06:17:14,844 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 06:17:14,845 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 06:17:14,846 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 06:17:14,847 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 06:17:14,847 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 06:17:14,848 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 06:17:14,848 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 06:17:14,849 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 06:17:14,850 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 06:17:14,851 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 06:17:14,851 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 06:17:14,852 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 06:17:14,853 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 06:17:14,854 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 06:17:14,855 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 06:17:14,856 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 06:17:14,857 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 06:17:14,857 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 06:17:14,864 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 06:17:14,865 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 06:17:14,865 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 06:17:14,866 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 06:17:14,867 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 06:17:14,868 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 06:17:14,869 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 06:17:14,882 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 06:17:14,883 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 06:17:14,884 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 06:17:14,886 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 06:17:14,886 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 06:17:14,887 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 06:17:14,887 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 06:17:14,887 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 06:17:14,888 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 06:17:14,889 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 06:17:14,890 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58e6b1ae-6b61-4537-a420-63c2153e3f30/bin/utaipan-gh47qXpMRh/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf [2022-12-14 06:17:14,914 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 06:17:14,914 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 06:17:14,915 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 06:17:14,915 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 06:17:14,915 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 06:17:14,915 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 06:17:14,916 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 06:17:14,916 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 06:17:14,916 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 06:17:14,916 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 06:17:14,916 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 06:17:14,916 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 06:17:14,917 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-14 06:17:14,917 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-14 06:17:14,917 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 06:17:14,917 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 06:17:14,917 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-14 06:17:14,918 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 06:17:14,918 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 06:17:14,918 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 06:17:14,918 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-12-14 06:17:14,918 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-12-14 06:17:14,918 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-12-14 06:17:14,918 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 06:17:14,919 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-12-14 06:17:14,919 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-12-14 06:17:14,919 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-12-14 06:17:14,919 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 06:17:14,919 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 06:17:14,919 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 06:17:14,920 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-14 06:17:14,920 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 06:17:14,920 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 06:17:14,920 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 06:17:14,920 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 06:17:14,920 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-12-14 06:17:14,920 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-12-14 06:17:14,921 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 06:17:14,921 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-14 06:17:14,921 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_58e6b1ae-6b61-4537-a420-63c2153e3f30/bin/utaipan-gh47qXpMRh/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58e6b1ae-6b61-4537-a420-63c2153e3f30/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9e65812efd79e833978ab1548160841e061a451f72b6ff490ed9b7c0a593a91c [2022-12-14 06:17:15,199 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 06:17:15,216 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 06:17:15,219 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 06:17:15,220 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 06:17:15,220 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 06:17:15,221 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58e6b1ae-6b61-4537-a420-63c2153e3f30/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/pthread/twostage_3-2.i [2022-12-14 06:17:17,807 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 06:17:18,057 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 06:17:18,058 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58e6b1ae-6b61-4537-a420-63c2153e3f30/sv-benchmarks/c/pthread/twostage_3-2.i [2022-12-14 06:17:18,079 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58e6b1ae-6b61-4537-a420-63c2153e3f30/bin/utaipan-gh47qXpMRh/data/8b6e6c699/8333457ce6a0469b8d93996c3d467a17/FLAG5d1bc39d3 [2022-12-14 06:17:18,090 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58e6b1ae-6b61-4537-a420-63c2153e3f30/bin/utaipan-gh47qXpMRh/data/8b6e6c699/8333457ce6a0469b8d93996c3d467a17 [2022-12-14 06:17:18,092 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 06:17:18,093 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 06:17:18,093 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 06:17:18,093 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 06:17:18,096 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 06:17:18,097 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 06:17:18" (1/1) ... [2022-12-14 06:17:18,097 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@16f4bbc1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:17:18, skipping insertion in model container [2022-12-14 06:17:18,097 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 06:17:18" (1/1) ... [2022-12-14 06:17:18,102 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 06:17:18,131 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 06:17:18,635 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-12-14 06:17:18,637 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_58e6b1ae-6b61-4537-a420-63c2153e3f30/sv-benchmarks/c/pthread/twostage_3-2.i[58991,59004] [2022-12-14 06:17:18,641 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-12-14 06:17:18,644 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-12-14 06:17:18,644 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-12-14 06:17:18,647 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-12-14 06:17:18,650 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-12-14 06:17:18,651 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-12-14 06:17:18,652 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-12-14 06:17:18,654 WARN L1576 CHandler]: Possible shadowing of function lock [2022-12-14 06:17:18,654 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-12-14 06:17:18,654 WARN L1576 CHandler]: Possible shadowing of function lock [2022-12-14 06:17:18,663 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-12-14 06:17:18,664 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 06:17:18,673 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-12-14 06:17:18,678 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 06:17:18,695 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-12-14 06:17:18,696 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_58e6b1ae-6b61-4537-a420-63c2153e3f30/sv-benchmarks/c/pthread/twostage_3-2.i[58991,59004] [2022-12-14 06:17:18,696 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-12-14 06:17:18,697 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-12-14 06:17:18,698 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-12-14 06:17:18,699 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-12-14 06:17:18,700 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-12-14 06:17:18,701 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-12-14 06:17:18,702 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-12-14 06:17:18,703 WARN L1576 CHandler]: Possible shadowing of function lock [2022-12-14 06:17:18,703 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-12-14 06:17:18,704 WARN L1576 CHandler]: Possible shadowing of function lock [2022-12-14 06:17:18,704 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-12-14 06:17:18,704 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 06:17:18,708 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 06:17:18,731 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-12-14 06:17:18,731 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_58e6b1ae-6b61-4537-a420-63c2153e3f30/sv-benchmarks/c/pthread/twostage_3-2.i[58991,59004] [2022-12-14 06:17:18,732 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-12-14 06:17:18,733 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-12-14 06:17:18,733 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-12-14 06:17:18,735 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-12-14 06:17:18,736 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-12-14 06:17:18,737 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-12-14 06:17:18,738 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-12-14 06:17:18,739 WARN L1576 CHandler]: Possible shadowing of function lock [2022-12-14 06:17:18,739 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-12-14 06:17:18,739 WARN L1576 CHandler]: Possible shadowing of function lock [2022-12-14 06:17:18,740 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-12-14 06:17:18,740 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 06:17:18,812 INFO L208 MainTranslator]: Completed translation [2022-12-14 06:17:18,812 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:17:18 WrapperNode [2022-12-14 06:17:18,813 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 06:17:18,814 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 06:17:18,814 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 06:17:18,814 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 06:17:18,820 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:17:18" (1/1) ... [2022-12-14 06:17:18,844 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:17:18" (1/1) ... [2022-12-14 06:17:18,870 INFO L138 Inliner]: procedures = 376, calls = 47, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 156 [2022-12-14 06:17:18,871 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 06:17:18,871 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 06:17:18,871 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 06:17:18,872 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 06:17:18,879 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:17:18" (1/1) ... [2022-12-14 06:17:18,879 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:17:18" (1/1) ... [2022-12-14 06:17:18,882 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:17:18" (1/1) ... [2022-12-14 06:17:18,882 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:17:18" (1/1) ... [2022-12-14 06:17:18,888 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:17:18" (1/1) ... [2022-12-14 06:17:18,891 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:17:18" (1/1) ... [2022-12-14 06:17:18,892 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:17:18" (1/1) ... [2022-12-14 06:17:18,894 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:17:18" (1/1) ... [2022-12-14 06:17:18,896 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 06:17:18,896 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 06:17:18,897 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 06:17:18,897 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 06:17:18,897 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:17:18" (1/1) ... [2022-12-14 06:17:18,902 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 06:17:18,914 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58e6b1ae-6b61-4537-a420-63c2153e3f30/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 06:17:18,925 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58e6b1ae-6b61-4537-a420-63c2153e3f30/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 06:17:18,927 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58e6b1ae-6b61-4537-a420-63c2153e3f30/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 06:17:18,959 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-12-14 06:17:18,959 INFO L130 BoogieDeclarations]: Found specification of procedure funcA [2022-12-14 06:17:18,959 INFO L138 BoogieDeclarations]: Found implementation of procedure funcA [2022-12-14 06:17:18,959 INFO L130 BoogieDeclarations]: Found specification of procedure funcB [2022-12-14 06:17:18,959 INFO L138 BoogieDeclarations]: Found implementation of procedure funcB [2022-12-14 06:17:18,960 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-14 06:17:18,960 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-14 06:17:18,960 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-12-14 06:17:18,960 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-12-14 06:17:18,960 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2022-12-14 06:17:18,960 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-12-14 06:17:18,960 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-12-14 06:17:18,960 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 06:17:18,960 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 06:17:18,961 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 06:17:18,962 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-12-14 06:17:19,102 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 06:17:19,104 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 06:17:19,540 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 06:17:19,549 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 06:17:19,550 INFO L300 CfgBuilder]: Removed 4 assume(true) statements. [2022-12-14 06:17:19,552 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 06:17:19 BoogieIcfgContainer [2022-12-14 06:17:19,552 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 06:17:19,554 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 06:17:19,555 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 06:17:19,557 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 06:17:19,558 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 06:17:18" (1/3) ... [2022-12-14 06:17:19,558 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@41718daf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 06:17:19, skipping insertion in model container [2022-12-14 06:17:19,558 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:17:18" (2/3) ... [2022-12-14 06:17:19,559 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@41718daf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 06:17:19, skipping insertion in model container [2022-12-14 06:17:19,559 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 06:17:19" (3/3) ... [2022-12-14 06:17:19,560 INFO L112 eAbstractionObserver]: Analyzing ICFG twostage_3-2.i [2022-12-14 06:17:19,576 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 06:17:19,576 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 26 error locations. [2022-12-14 06:17:19,576 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-14 06:17:19,646 INFO L144 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2022-12-14 06:17:19,671 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-14 06:17:19,682 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 215 places, 228 transitions, 478 flow [2022-12-14 06:17:19,684 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 215 places, 228 transitions, 478 flow [2022-12-14 06:17:19,685 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 215 places, 228 transitions, 478 flow [2022-12-14 06:17:19,770 INFO L130 PetriNetUnfolder]: 39/467 cut-off events. [2022-12-14 06:17:19,770 INFO L131 PetriNetUnfolder]: For 8/8 co-relation queries the response was YES. [2022-12-14 06:17:19,776 INFO L83 FinitePrefix]: Finished finitePrefix Result has 487 conditions, 467 events. 39/467 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 1979 event pairs, 0 based on Foata normal form. 0/352 useless extension candidates. Maximal degree in co-relation 254. Up to 8 conditions per place. [2022-12-14 06:17:19,780 INFO L119 LiptonReduction]: Number of co-enabled transitions 6766 [2022-12-14 06:17:59,761 WARN L233 SmtUtils]: Spent 15.12s on a formula simplification. DAG size of input: 254 DAG size of output: 239 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-14 06:18:07,209 WARN L233 SmtUtils]: Spent 7.44s on a formula simplification that was a NOOP. DAG size: 233 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-14 06:18:17,453 WARN L233 SmtUtils]: Spent 10.24s on a formula simplification. DAG size of input: 267 DAG size of output: 252 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-14 06:18:22,792 WARN L233 SmtUtils]: Spent 5.34s on a formula simplification that was a NOOP. DAG size: 246 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-14 06:19:57,643 WARN L233 SmtUtils]: Spent 1.53m on a formula simplification. DAG size of input: 291 DAG size of output: 280 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-14 06:20:44,521 WARN L233 SmtUtils]: Spent 46.88s on a formula simplification that was a NOOP. DAG size: 280 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-14 06:21:43,788 WARN L233 SmtUtils]: Spent 59.26s on a formula simplification. DAG size of input: 304 DAG size of output: 290 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-14 06:22:12,674 WARN L233 SmtUtils]: Spent 28.88s on a formula simplification that was a NOOP. DAG size: 290 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-14 06:22:12,677 INFO L134 LiptonReduction]: Checked pairs total: 16920 [2022-12-14 06:22:12,677 INFO L136 LiptonReduction]: Total number of compositions: 245 [2022-12-14 06:22:12,682 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 63 places, 63 transitions, 148 flow [2022-12-14 06:22:12,736 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 1882 states, 1774 states have (on average 2.732243517474634) internal successors, (4847), 1881 states have internal predecessors, (4847), 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) [2022-12-14 06:22:12,749 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 06:22:12,752 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;@6fde0f0a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 06:22:12,752 INFO L358 AbstractCegarLoop]: Starting to check reachability of 29 error locations. [2022-12-14 06:22:12,757 INFO L276 IsEmpty]: Start isEmpty. Operand has 1882 states, 1774 states have (on average 2.732243517474634) internal successors, (4847), 1881 states have internal predecessors, (4847), 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) [2022-12-14 06:22:12,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2 [2022-12-14 06:22:12,761 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:22:12,761 INFO L195 NwaCegarLoop]: trace histogram [1] [2022-12-14 06:22:12,761 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 26 more)] === [2022-12-14 06:22:12,765 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:22:12,765 INFO L85 PathProgramCache]: Analyzing trace with hash 831, now seen corresponding path program 1 times [2022-12-14 06:22:12,773 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 06:22:12,773 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1477876338] [2022-12-14 06:22:12,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:22:12,774 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 [2022-12-14 06:22:12,774 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58e6b1ae-6b61-4537-a420-63c2153e3f30/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 06:22:12,801 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58e6b1ae-6b61-4537-a420-63c2153e3f30/bin/utaipan-gh47qXpMRh/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) [2022-12-14 06:22:12,802 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58e6b1ae-6b61-4537-a420-63c2153e3f30/bin/utaipan-gh47qXpMRh/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 [2022-12-14 06:22:12,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:22:12,858 INFO L263 TraceCheckSpWp]: Trace formula consists of 3 conjuncts, 1 conjunts are in the unsatisfiable core [2022-12-14 06:22:12,860 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 06:22:12,863 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 06:22:12,863 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 06:22:12,864 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 06:22:12,864 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1477876338] [2022-12-14 06:22:12,864 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1477876338] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:22:12,864 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 06:22:12,864 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-12-14 06:22:12,865 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1395485041] [2022-12-14 06:22:12,866 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:22:12,869 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-14 06:22:12,869 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 06:22:12,886 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-14 06:22:12,886 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-14 06:22:12,891 INFO L87 Difference]: Start difference. First operand has 1882 states, 1774 states have (on average 2.732243517474634) internal successors, (4847), 1881 states have internal predecessors, (4847), 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 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 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) [2022-12-14 06:22:13,098 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:22:13,098 INFO L93 Difference]: Finished difference Result 1874 states and 4839 transitions. [2022-12-14 06:22:13,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-14 06:22:13,101 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 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 1 [2022-12-14 06:22:13,101 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:22:13,124 INFO L225 Difference]: With dead ends: 1874 [2022-12-14 06:22:13,124 INFO L226 Difference]: Without dead ends: 1849 [2022-12-14 06:22:13,125 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-14 06:22:13,128 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 17 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-12-14 06:22:13,129 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 17 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-12-14 06:22:13,149 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1849 states. [2022-12-14 06:22:13,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1849 to 1849. [2022-12-14 06:22:13,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1849 states, 1754 states have (on average 2.7206385404789053) internal successors, (4772), 1848 states have internal predecessors, (4772), 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) [2022-12-14 06:22:13,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1849 states to 1849 states and 4772 transitions. [2022-12-14 06:22:13,224 INFO L78 Accepts]: Start accepts. Automaton has 1849 states and 4772 transitions. Word has length 1 [2022-12-14 06:22:13,224 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:22:13,224 INFO L495 AbstractCegarLoop]: Abstraction has 1849 states and 4772 transitions. [2022-12-14 06:22:13,224 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 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) [2022-12-14 06:22:13,224 INFO L276 IsEmpty]: Start isEmpty. Operand 1849 states and 4772 transitions. [2022-12-14 06:22:13,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2022-12-14 06:22:13,225 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:22:13,225 INFO L195 NwaCegarLoop]: trace histogram [1, 1] [2022-12-14 06:22:13,236 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58e6b1ae-6b61-4537-a420-63c2153e3f30/bin/utaipan-gh47qXpMRh/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 [2022-12-14 06:22:13,425 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58e6b1ae-6b61-4537-a420-63c2153e3f30/bin/utaipan-gh47qXpMRh/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 [2022-12-14 06:22:13,427 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 26 more)] === [2022-12-14 06:22:13,428 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:22:13,429 INFO L85 PathProgramCache]: Analyzing trace with hash 26480, now seen corresponding path program 1 times [2022-12-14 06:22:13,431 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 06:22:13,431 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [432625096] [2022-12-14 06:22:13,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:22:13,432 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 [2022-12-14 06:22:13,432 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58e6b1ae-6b61-4537-a420-63c2153e3f30/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 06:22:13,435 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58e6b1ae-6b61-4537-a420-63c2153e3f30/bin/utaipan-gh47qXpMRh/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) [2022-12-14 06:22:13,438 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58e6b1ae-6b61-4537-a420-63c2153e3f30/bin/utaipan-gh47qXpMRh/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 [2022-12-14 06:22:13,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:22:13,656 INFO L263 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 20 conjunts are in the unsatisfiable core [2022-12-14 06:22:13,659 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 06:22:14,556 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-12-14 06:22:14,557 INFO L350 Elim1Store]: Elim1 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 1 new quantified variables, introduced 1 case distinctions, treesize of input 195 treesize of output 194 [2022-12-14 06:22:15,126 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-12-14 06:22:15,127 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 1 new quantified variables, introduced 1 case distinctions, treesize of input 183 treesize of output 182 [2022-12-14 06:22:15,315 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:22:15,344 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:22:15,347 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:22:15,350 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:22:16,238 INFO L321 Elim1Store]: treesize reduction 1112, result has 15.9 percent of original size [2022-12-14 06:22:16,239 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 14 select indices, 14 select index equivalence classes, 72 disjoint index pairs (out of 91 index pairs), introduced 14 new quantified variables, introduced 42 case distinctions, treesize of input 114 treesize of output 287 [2022-12-14 06:22:16,271 WARN L718 sPolynomialRelations]: Constructing 16384(two to the power of 14 dual juncts. [2022-12-14 06:22:16,561 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 06:22:16,561 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 06:22:16,561 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 06:22:16,561 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [432625096] [2022-12-14 06:22:16,561 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [432625096] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:22:16,562 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 06:22:16,562 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-14 06:22:16,562 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1378487415] [2022-12-14 06:22:16,562 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:22:16,563 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 06:22:16,563 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 06:22:16,563 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 06:22:16,563 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 06:22:16,566 INFO L87 Difference]: Start difference. First operand 1849 states and 4772 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) [2022-12-14 06:22:16,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:22:16,901 INFO L93 Difference]: Finished difference Result 1761 states and 4546 transitions. [2022-12-14 06:22:16,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 06:22:16,902 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 [2022-12-14 06:22:16,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:22:16,908 INFO L225 Difference]: With dead ends: 1761 [2022-12-14 06:22:16,908 INFO L226 Difference]: Without dead ends: 1761 [2022-12-14 06:22:16,908 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 06:22:16,909 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 50 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 16 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-12-14 06:22:16,909 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 16 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-12-14 06:22:16,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1761 states. [2022-12-14 06:22:16,938 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1761 to 1761. [2022-12-14 06:22:16,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1761 states, 1674 states have (on average 2.7156511350059738) internal successors, (4546), 1760 states have internal predecessors, (4546), 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) [2022-12-14 06:22:16,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1761 states to 1761 states and 4546 transitions. [2022-12-14 06:22:16,946 INFO L78 Accepts]: Start accepts. Automaton has 1761 states and 4546 transitions. Word has length 2 [2022-12-14 06:22:16,946 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:22:16,947 INFO L495 AbstractCegarLoop]: Abstraction has 1761 states and 4546 transitions. [2022-12-14 06:22:16,947 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) [2022-12-14 06:22:16,947 INFO L276 IsEmpty]: Start isEmpty. Operand 1761 states and 4546 transitions. [2022-12-14 06:22:16,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2022-12-14 06:22:16,947 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:22:16,947 INFO L195 NwaCegarLoop]: trace histogram [1, 1] [2022-12-14 06:22:16,960 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58e6b1ae-6b61-4537-a420-63c2153e3f30/bin/utaipan-gh47qXpMRh/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 [2022-12-14 06:22:17,148 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58e6b1ae-6b61-4537-a420-63c2153e3f30/bin/utaipan-gh47qXpMRh/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 [2022-12-14 06:22:17,148 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr9REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 26 more)] === [2022-12-14 06:22:17,149 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:22:17,149 INFO L85 PathProgramCache]: Analyzing trace with hash 26481, now seen corresponding path program 1 times [2022-12-14 06:22:17,149 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 06:22:17,149 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [883553208] [2022-12-14 06:22:17,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:22:17,150 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 [2022-12-14 06:22:17,150 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58e6b1ae-6b61-4537-a420-63c2153e3f30/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 06:22:17,151 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58e6b1ae-6b61-4537-a420-63c2153e3f30/bin/utaipan-gh47qXpMRh/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) [2022-12-14 06:22:17,152 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58e6b1ae-6b61-4537-a420-63c2153e3f30/bin/utaipan-gh47qXpMRh/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 [2022-12-14 06:22:17,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:22:17,296 INFO L263 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 22 conjunts are in the unsatisfiable core [2022-12-14 06:22:17,299 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 06:22:18,134 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-14 06:22:18,134 INFO L350 Elim1Store]: Elim1 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 1 new quantified variables, introduced 1 case distinctions, treesize of input 195 treesize of output 198 [2022-12-14 06:22:18,799 INFO L321 Elim1Store]: treesize reduction 40, result has 27.3 percent of original size [2022-12-14 06:22:18,800 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 2 new quantified variables, introduced 2 case distinctions, treesize of input 189 treesize of output 194 [2022-12-14 06:22:19,008 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:22:19,010 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 06:22:19,041 INFO L321 Elim1Store]: treesize reduction 11, result has 50.0 percent of original size [2022-12-14 06:22:19,041 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 17 treesize of output 25 [2022-12-14 06:22:19,355 INFO L321 Elim1Store]: treesize reduction 149, result has 40.6 percent of original size [2022-12-14 06:22:19,355 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 14 select indices, 14 select index equivalence classes, 68 disjoint index pairs (out of 91 index pairs), introduced 14 new quantified variables, introduced 25 case distinctions, treesize of input 108 treesize of output 181 [2022-12-14 06:22:19,407 WARN L718 sPolynomialRelations]: Constructing 8192(two to the power of 13 dual juncts. [2022-12-14 06:22:19,407 WARN L718 sPolynomialRelations]: Constructing 8192(two to the power of 13 dual juncts. [2022-12-14 06:22:19,425 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 06:22:19,425 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 06:22:19,425 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 06:22:19,426 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [883553208] [2022-12-14 06:22:19,426 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [883553208] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:22:19,426 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 06:22:19,426 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-14 06:22:19,426 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [546022772] [2022-12-14 06:22:19,426 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:22:19,426 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 06:22:19,426 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 06:22:19,427 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 06:22:19,427 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 06:22:19,427 INFO L87 Difference]: Start difference. First operand 1761 states and 4546 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) [2022-12-14 06:22:19,597 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:22:19,597 INFO L93 Difference]: Finished difference Result 1673 states and 4320 transitions. [2022-12-14 06:22:19,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 06:22:19,597 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 [2022-12-14 06:22:19,598 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:22:19,603 INFO L225 Difference]: With dead ends: 1673 [2022-12-14 06:22:19,603 INFO L226 Difference]: Without dead ends: 1673 [2022-12-14 06:22:19,603 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 [2022-12-14 06:22:19,604 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 50 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 11 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-12-14 06:22:19,604 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 11 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-12-14 06:22:19,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1673 states. [2022-12-14 06:22:19,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1673 to 1673. [2022-12-14 06:22:19,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1673 states, 1594 states have (on average 2.710163111668758) internal successors, (4320), 1672 states have internal predecessors, (4320), 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) [2022-12-14 06:22:19,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1673 states to 1673 states and 4320 transitions. [2022-12-14 06:22:19,643 INFO L78 Accepts]: Start accepts. Automaton has 1673 states and 4320 transitions. Word has length 2 [2022-12-14 06:22:19,644 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:22:19,644 INFO L495 AbstractCegarLoop]: Abstraction has 1673 states and 4320 transitions. [2022-12-14 06:22:19,644 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) [2022-12-14 06:22:19,644 INFO L276 IsEmpty]: Start isEmpty. Operand 1673 states and 4320 transitions. [2022-12-14 06:22:19,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2022-12-14 06:22:19,644 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:22:19,644 INFO L195 NwaCegarLoop]: trace histogram [1, 1] [2022-12-14 06:22:19,652 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58e6b1ae-6b61-4537-a420-63c2153e3f30/bin/utaipan-gh47qXpMRh/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)] Ended with exit code 0 [2022-12-14 06:22:19,845 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58e6b1ae-6b61-4537-a420-63c2153e3f30/bin/utaipan-gh47qXpMRh/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 [2022-12-14 06:22:19,845 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr10REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 26 more)] === [2022-12-14 06:22:19,846 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:22:19,846 INFO L85 PathProgramCache]: Analyzing trace with hash 26738, now seen corresponding path program 1 times [2022-12-14 06:22:19,846 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 06:22:19,846 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [878355759] [2022-12-14 06:22:19,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:22:19,846 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 [2022-12-14 06:22:19,847 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58e6b1ae-6b61-4537-a420-63c2153e3f30/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 06:22:19,847 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58e6b1ae-6b61-4537-a420-63c2153e3f30/bin/utaipan-gh47qXpMRh/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) [2022-12-14 06:22:19,848 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58e6b1ae-6b61-4537-a420-63c2153e3f30/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-12-14 06:22:19,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:22:19,961 INFO L263 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 5 conjunts are in the unsatisfiable core [2022-12-14 06:22:19,963 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 06:22:19,974 INFO L321 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2022-12-14 06:22:19,975 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 1 case distinctions, treesize of input 19 treesize of output 22 [2022-12-14 06:22:19,981 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 06:22:19,981 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 06:22:19,982 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 06:22:19,982 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [878355759] [2022-12-14 06:22:19,982 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [878355759] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:22:19,982 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 06:22:19,982 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-14 06:22:19,982 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [447489029] [2022-12-14 06:22:19,982 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:22:19,982 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 06:22:19,983 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 06:22:19,983 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 06:22:19,983 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 06:22:19,983 INFO L87 Difference]: Start difference. First operand 1673 states and 4320 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) [2022-12-14 06:22:20,157 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:22:20,157 INFO L93 Difference]: Finished difference Result 1585 states and 4094 transitions. [2022-12-14 06:22:20,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 06:22:20,158 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 [2022-12-14 06:22:20,158 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:22:20,164 INFO L225 Difference]: With dead ends: 1585 [2022-12-14 06:22:20,165 INFO L226 Difference]: Without dead ends: 1585 [2022-12-14 06:22:20,165 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 [2022-12-14 06:22:20,166 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 46 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 16 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-12-14 06:22:20,166 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 16 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-12-14 06:22:20,170 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1585 states. [2022-12-14 06:22:20,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1585 to 1585. [2022-12-14 06:22:20,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1585 states, 1514 states have (on average 2.7040951122853367) internal successors, (4094), 1584 states have internal predecessors, (4094), 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) [2022-12-14 06:22:20,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1585 states to 1585 states and 4094 transitions. [2022-12-14 06:22:20,210 INFO L78 Accepts]: Start accepts. Automaton has 1585 states and 4094 transitions. Word has length 2 [2022-12-14 06:22:20,210 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:22:20,210 INFO L495 AbstractCegarLoop]: Abstraction has 1585 states and 4094 transitions. [2022-12-14 06:22:20,210 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) [2022-12-14 06:22:20,210 INFO L276 IsEmpty]: Start isEmpty. Operand 1585 states and 4094 transitions. [2022-12-14 06:22:20,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2022-12-14 06:22:20,210 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:22:20,210 INFO L195 NwaCegarLoop]: trace histogram [1, 1] [2022-12-14 06:22:20,219 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58e6b1ae-6b61-4537-a420-63c2153e3f30/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Ended with exit code 0 [2022-12-14 06:22:20,411 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58e6b1ae-6b61-4537-a420-63c2153e3f30/bin/utaipan-gh47qXpMRh/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 [2022-12-14 06:22:20,412 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr11REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 26 more)] === [2022-12-14 06:22:20,413 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:22:20,414 INFO L85 PathProgramCache]: Analyzing trace with hash 26740, now seen corresponding path program 1 times [2022-12-14 06:22:20,415 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 06:22:20,415 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1378736963] [2022-12-14 06:22:20,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:22:20,415 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 [2022-12-14 06:22:20,416 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58e6b1ae-6b61-4537-a420-63c2153e3f30/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 06:22:20,418 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58e6b1ae-6b61-4537-a420-63c2153e3f30/bin/utaipan-gh47qXpMRh/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) [2022-12-14 06:22:20,421 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58e6b1ae-6b61-4537-a420-63c2153e3f30/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-12-14 06:22:20,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 06:22:20,673 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-14 06:22:20,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 06:22:20,825 INFO L130 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2022-12-14 06:22:20,825 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-14 06:22:20,826 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr11REQUIRES_VIOLATIONMEMORY_DEREFERENCE (28 of 29 remaining) [2022-12-14 06:22:20,827 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (27 of 29 remaining) [2022-12-14 06:22:20,828 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (26 of 29 remaining) [2022-12-14 06:22:20,828 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (25 of 29 remaining) [2022-12-14 06:22:20,828 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (24 of 29 remaining) [2022-12-14 06:22:20,828 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (23 of 29 remaining) [2022-12-14 06:22:20,828 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (22 of 29 remaining) [2022-12-14 06:22:20,828 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (21 of 29 remaining) [2022-12-14 06:22:20,828 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (20 of 29 remaining) [2022-12-14 06:22:20,828 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE (19 of 29 remaining) [2022-12-14 06:22:20,828 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9REQUIRES_VIOLATIONMEMORY_DEREFERENCE (18 of 29 remaining) [2022-12-14 06:22:20,829 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr12REQUIRES_VIOLATIONMEMORY_DEREFERENCE (17 of 29 remaining) [2022-12-14 06:22:20,829 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr13REQUIRES_VIOLATIONMEMORY_DEREFERENCE (16 of 29 remaining) [2022-12-14 06:22:20,829 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr16REQUIRES_VIOLATIONMEMORY_DEREFERENCE (15 of 29 remaining) [2022-12-14 06:22:20,829 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr17REQUIRES_VIOLATIONMEMORY_DEREFERENCE (14 of 29 remaining) [2022-12-14 06:22:20,829 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10REQUIRES_VIOLATIONMEMORY_DEREFERENCE (13 of 29 remaining) [2022-12-14 06:22:20,829 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr20REQUIRES_VIOLATIONMEMORY_DEREFERENCE (12 of 29 remaining) [2022-12-14 06:22:20,829 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr21REQUIRES_VIOLATIONMEMORY_DEREFERENCE (11 of 29 remaining) [2022-12-14 06:22:20,829 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr18REQUIRES_VIOLATIONMEMORY_DEREFERENCE (10 of 29 remaining) [2022-12-14 06:22:20,830 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr19REQUIRES_VIOLATIONMEMORY_DEREFERENCE (9 of 29 remaining) [2022-12-14 06:22:20,830 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr14REQUIRES_VIOLATIONMEMORY_DEREFERENCE (8 of 29 remaining) [2022-12-14 06:22:20,830 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr15REQUIRES_VIOLATIONMEMORY_DEREFERENCE (7 of 29 remaining) [2022-12-14 06:22:20,830 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr22REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 29 remaining) [2022-12-14 06:22:20,830 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr23REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 29 remaining) [2022-12-14 06:22:20,830 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_LEAK (4 of 29 remaining) [2022-12-14 06:22:20,830 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 29 remaining) [2022-12-14 06:22:20,830 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 29 remaining) [2022-12-14 06:22:20,830 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location funcBErr0ASSERT_VIOLATIONMEMORY_LEAK (1 of 29 remaining) [2022-12-14 06:22:20,831 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location funcBErr0ASSERT_VIOLATIONMEMORY_LEAK (0 of 29 remaining) [2022-12-14 06:22:20,839 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58e6b1ae-6b61-4537-a420-63c2153e3f30/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Ended with exit code 0 [2022-12-14 06:22:21,031 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58e6b1ae-6b61-4537-a420-63c2153e3f30/bin/utaipan-gh47qXpMRh/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 [2022-12-14 06:22:21,036 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2022-12-14 06:22:21,041 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-14 06:22:21,041 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-14 06:22:21,055 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.12 06:22:21 BasicIcfg [2022-12-14 06:22:21,055 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-14 06:22:21,056 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-14 06:22:21,056 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-14 06:22:21,056 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-14 06:22:21,056 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 06:17:19" (3/4) ... [2022-12-14 06:22:21,058 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-12-14 06:22:21,081 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58e6b1ae-6b61-4537-a420-63c2153e3f30/bin/utaipan-gh47qXpMRh/witness.graphml [2022-12-14 06:22:21,082 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-14 06:22:21,082 INFO L158 Benchmark]: Toolchain (without parser) took 302989.45ms. Allocated memory was 77.6MB in the beginning and 113.2MB in the end (delta: 35.7MB). Free memory was 52.3MB in the beginning and 43.3MB in the end (delta: 9.0MB). Peak memory consumption was 45.1MB. Max. memory is 16.1GB. [2022-12-14 06:22:21,082 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 44.0MB. Free memory was 22.6MB in the beginning and 22.6MB in the end (delta: 42.2kB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 06:22:21,082 INFO L158 Benchmark]: CACSL2BoogieTranslator took 719.44ms. Allocated memory is still 77.6MB. Free memory was 51.9MB in the beginning and 42.6MB in the end (delta: 9.3MB). Peak memory consumption was 24.5MB. Max. memory is 16.1GB. [2022-12-14 06:22:21,082 INFO L158 Benchmark]: Boogie Procedure Inliner took 57.15ms. Allocated memory is still 77.6MB. Free memory was 42.6MB in the beginning and 39.9MB in the end (delta: 2.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-12-14 06:22:21,083 INFO L158 Benchmark]: Boogie Preprocessor took 24.66ms. Allocated memory is still 77.6MB. Free memory was 39.9MB in the beginning and 37.4MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 06:22:21,083 INFO L158 Benchmark]: RCFGBuilder took 655.75ms. Allocated memory was 77.6MB in the beginning and 94.4MB in the end (delta: 16.8MB). Free memory was 37.4MB in the beginning and 46.8MB in the end (delta: -9.3MB). Peak memory consumption was 8.8MB. Max. memory is 16.1GB. [2022-12-14 06:22:21,083 INFO L158 Benchmark]: TraceAbstraction took 301500.98ms. Allocated memory was 94.4MB in the beginning and 113.2MB in the end (delta: 18.9MB). Free memory was 46.3MB in the beginning and 46.1MB in the end (delta: 144.3kB). Peak memory consumption was 22.3MB. Max. memory is 16.1GB. [2022-12-14 06:22:21,083 INFO L158 Benchmark]: Witness Printer took 25.85ms. Allocated memory is still 113.2MB. Free memory was 45.4MB in the beginning and 43.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 06:22:21,084 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 44.0MB. Free memory was 22.6MB in the beginning and 22.6MB in the end (delta: 42.2kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 719.44ms. Allocated memory is still 77.6MB. Free memory was 51.9MB in the beginning and 42.6MB in the end (delta: 9.3MB). Peak memory consumption was 24.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 57.15ms. Allocated memory is still 77.6MB. Free memory was 42.6MB in the beginning and 39.9MB in the end (delta: 2.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 24.66ms. Allocated memory is still 77.6MB. Free memory was 39.9MB in the beginning and 37.4MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 655.75ms. Allocated memory was 77.6MB in the beginning and 94.4MB in the end (delta: 16.8MB). Free memory was 37.4MB in the beginning and 46.8MB in the end (delta: -9.3MB). Peak memory consumption was 8.8MB. Max. memory is 16.1GB. * TraceAbstraction took 301500.98ms. Allocated memory was 94.4MB in the beginning and 113.2MB in the end (delta: 18.9MB). Free memory was 46.3MB in the beginning and 46.1MB in the end (delta: 144.3kB). Peak memory consumption was 22.3MB. Max. memory is 16.1GB. * Witness Printer took 25.85ms. Allocated memory is still 113.2MB. Free memory was 45.4MB in the beginning and 43.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 293.0s, 215 PlacesBefore, 63 PlacesAfterwards, 228 TransitionsBefore, 63 TransitionsAfterwards, 6766 CoEnabledTransitionPairs, 8 FixpointIterations, 93 TrivialSequentialCompositions, 103 ConcurrentSequentialCompositions, 11 TrivialYvCompositions, 25 ConcurrentYvCompositions, 13 ChoiceCompositions, 245 TotalNumberOfCompositions, 16920 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 7846, independent: 7631, independent conditional: 0, independent unconditional: 7631, dependent: 215, dependent conditional: 0, dependent unconditional: 215, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 4180, independent: 4143, independent conditional: 0, independent unconditional: 4143, dependent: 37, dependent conditional: 0, dependent unconditional: 37, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 4180, independent: 4124, independent conditional: 0, independent unconditional: 4124, dependent: 56, dependent conditional: 0, dependent unconditional: 56, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 56, independent: 19, independent conditional: 0, independent unconditional: 19, dependent: 37, dependent conditional: 0, dependent unconditional: 37, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 161, independent: 40, independent conditional: 0, independent unconditional: 40, dependent: 122, dependent conditional: 0, dependent unconditional: 122, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 7846, independent: 3488, independent conditional: 0, independent unconditional: 3488, dependent: 178, dependent conditional: 0, dependent unconditional: 178, unknown: 4180, unknown conditional: 0, unknown unconditional: 4180] , Statistics on independence cache: Total cache size (in pairs): 268, Positive cache size: 252, Positive conditional cache size: 0, Positive unconditional cache size: 252, Negative cache size: 16, Negative conditional cache size: 0, Negative unconditional cache size: 16, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: -1]: pointer dereference may fail pointer dereference may fail We found a FailurePath: [L1236] static int iTThreads = 2; [L1237] static int iRThreads = 1; [L1238] static int data1Value = 0; [L1239] static int data2Value = 0; [L1240] pthread_mutex_t *data1Lock; [L1241] pthread_mutex_t *data2Lock; [L1274] int i,err; [L1275] COND TRUE argc != 1 [L1276] COND FALSE !(argc != 3) [L1284] data1Lock = (pthread_mutex_t *) malloc(sizeof(pthread_mutex_t)) [L1285] data2Lock = (pthread_mutex_t *) malloc(sizeof(pthread_mutex_t)) [L1286] EXPR err = pthread_mutex_init(data1Lock, ((void *)0)) [L1286] COND FALSE !(0 != (err = pthread_mutex_init(data1Lock, ((void *)0)))) [L1290] EXPR err = pthread_mutex_init(data2Lock, ((void *)0)) [L1290] COND FALSE !(0 != (err = pthread_mutex_init(data2Lock, ((void *)0)))) [L1294] EXPR \read(iTThreads) [L1294] pthread_t tPool[iTThreads]; [L1295] EXPR \read(iRThreads) [L1295] pthread_t rPool[iRThreads]; [L1296] i = 0 VAL [\old(argc)=3, \read(iRThreads)=-2145386495, \read(iTThreads)=1073741824, argc=3, argv={16:15}, argv={16:15}, data1Lock={28:0}, data1Value=0, data2Lock={25:0}, data2Value=0, err=0, i=0, iRThreads={14:0}, iTThreads={13:0}, rPool={-2147483641:0}, tPool={-2147483633:0}] [L1296] EXPR \read(iTThreads) [L1296] COND TRUE i < iTThreads - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1273]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 1303]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 1297]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 1268]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 245 locations, 29 error locations. Started 1 CEGAR loops. OverallTime: 301.4s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 293.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 146 SdHoareTripleChecker+Valid, 0.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 146 mSDsluCounter, 60 SdHoareTripleChecker+Invalid, 0.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 10 mSDsCounter, 3 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 182 IncrementalHoareTripleChecker+Invalid, 185 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3 mSolverCounterUnsat, 50 mSDtfsCounter, 182 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1882occurred in iteration=0, InterpolantAutomatonStates: 11, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 5.1s InterpolantComputationTime, 9 NumberOfCodeBlocks, 9 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 3 ConstructedInterpolants, 1 QuantifiedInterpolants, 236 SizeOfPredicates, 46 NumberOfNonLiveVariables, 294 ConjunctsInSsa, 48 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2022-12-14 06:22:21,104 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58e6b1ae-6b61-4537-a420-63c2153e3f30/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(valid-deref)