./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/pthread-memsafety/fillarray1.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_daaf54cb-ed3d-42c3-a750-76d813a829ff/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daaf54cb-ed3d-42c3-a750-76d813a829ff/bin/uautomizer-uyxdKDjOR8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daaf54cb-ed3d-42c3-a750-76d813a829ff/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daaf54cb-ed3d-42c3-a750-76d813a829ff/bin/uautomizer-uyxdKDjOR8/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/pthread-memsafety/fillarray1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daaf54cb-ed3d-42c3-a750-76d813a829ff/bin/uautomizer-uyxdKDjOR8/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daaf54cb-ed3d-42c3-a750-76d813a829ff/bin/uautomizer-uyxdKDjOR8 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 0d955c319d131d508b8618ef571ba23da865842e29989ccda626762130a6dda2 --- 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 [2022-12-13 20:07:20,375 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 20:07:20,377 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 20:07:20,396 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 20:07:20,397 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 20:07:20,398 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 20:07:20,399 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 20:07:20,400 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 20:07:20,402 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 20:07:20,403 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 20:07:20,404 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 20:07:20,405 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 20:07:20,405 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 20:07:20,406 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 20:07:20,408 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 20:07:20,409 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 20:07:20,410 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 20:07:20,411 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 20:07:20,413 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 20:07:20,414 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 20:07:20,416 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 20:07:20,417 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 20:07:20,418 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 20:07:20,418 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 20:07:20,421 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 20:07:20,421 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 20:07:20,421 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 20:07:20,422 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 20:07:20,422 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 20:07:20,423 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 20:07:20,423 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 20:07:20,424 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 20:07:20,424 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 20:07:20,425 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 20:07:20,426 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 20:07:20,426 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 20:07:20,426 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 20:07:20,427 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 20:07:20,427 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 20:07:20,427 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 20:07:20,428 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 20:07:20,429 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daaf54cb-ed3d-42c3-a750-76d813a829ff/bin/uautomizer-uyxdKDjOR8/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2022-12-13 20:07:20,455 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 20:07:20,455 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 20:07:20,455 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 20:07:20,455 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 20:07:20,456 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 20:07:20,456 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 20:07:20,457 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 20:07:20,457 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 20:07:20,457 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 20:07:20,458 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 20:07:20,458 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 20:07:20,458 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-13 20:07:20,458 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 20:07:20,458 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 20:07:20,459 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 20:07:20,459 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-12-13 20:07:20,459 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-12-13 20:07:20,459 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-12-13 20:07:20,459 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 20:07:20,459 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-12-13 20:07:20,460 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 20:07:20,460 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 20:07:20,460 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 20:07:20,460 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 20:07:20,460 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 20:07:20,461 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 20:07:20,461 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 20:07:20,461 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 20:07:20,461 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 20:07:20,461 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 20:07:20,462 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 20:07:20,462 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 20:07:20,462 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 20:07:20,462 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 20:07:20,462 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_daaf54cb-ed3d-42c3-a750-76d813a829ff/bin/uautomizer-uyxdKDjOR8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daaf54cb-ed3d-42c3-a750-76d813a829ff/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0d955c319d131d508b8618ef571ba23da865842e29989ccda626762130a6dda2 [2022-12-13 20:07:20,664 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 20:07:20,680 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 20:07:20,682 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 20:07:20,683 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 20:07:20,683 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 20:07:20,684 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daaf54cb-ed3d-42c3-a750-76d813a829ff/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/pthread-memsafety/fillarray1.i [2022-12-13 20:07:23,394 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 20:07:23,564 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 20:07:23,564 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daaf54cb-ed3d-42c3-a750-76d813a829ff/sv-benchmarks/c/pthread-memsafety/fillarray1.i [2022-12-13 20:07:23,573 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daaf54cb-ed3d-42c3-a750-76d813a829ff/bin/uautomizer-uyxdKDjOR8/data/90bd18a69/c5b2763ab1c04076b6edb2d0e807d5d4/FLAG2e7e29a4b [2022-12-13 20:07:23,583 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daaf54cb-ed3d-42c3-a750-76d813a829ff/bin/uautomizer-uyxdKDjOR8/data/90bd18a69/c5b2763ab1c04076b6edb2d0e807d5d4 [2022-12-13 20:07:23,585 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 20:07:23,587 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 20:07:23,588 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 20:07:23,588 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 20:07:23,591 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 20:07:23,591 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 08:07:23" (1/1) ... [2022-12-13 20:07:23,592 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@713a237 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:07:23, skipping insertion in model container [2022-12-13 20:07:23,592 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 08:07:23" (1/1) ... [2022-12-13 20:07:23,598 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 20:07:23,630 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 20:07:23,889 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 20:07:23,897 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) [2022-12-13 20:07:23,897 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@43c0fc2d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:07:23, skipping insertion in model container [2022-12-13 20:07:23,897 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 20:07:23,898 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2022-12-13 20:07:23,899 INFO L158 Benchmark]: Toolchain (without parser) took 311.71ms. Allocated memory is still 121.6MB. Free memory was 85.1MB in the beginning and 71.4MB in the end (delta: 13.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-12-13 20:07:23,899 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 100.7MB. Free memory is still 42.7MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 20:07:23,900 INFO L158 Benchmark]: CACSL2BoogieTranslator took 309.98ms. Allocated memory is still 121.6MB. Free memory was 85.1MB in the beginning and 71.4MB in the end (delta: 13.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-12-13 20:07:23,900 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 100.7MB. Free memory is still 42.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 309.98ms. Allocated memory is still 121.6MB. Free memory was 85.1MB in the beginning and 71.4MB in the end (delta: 13.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 1044]: 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_daaf54cb-ed3d-42c3-a750-76d813a829ff/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daaf54cb-ed3d-42c3-a750-76d813a829ff/bin/uautomizer-uyxdKDjOR8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daaf54cb-ed3d-42c3-a750-76d813a829ff/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daaf54cb-ed3d-42c3-a750-76d813a829ff/bin/uautomizer-uyxdKDjOR8/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/pthread-memsafety/fillarray1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daaf54cb-ed3d-42c3-a750-76d813a829ff/bin/uautomizer-uyxdKDjOR8/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daaf54cb-ed3d-42c3-a750-76d813a829ff/bin/uautomizer-uyxdKDjOR8 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 0d955c319d131d508b8618ef571ba23da865842e29989ccda626762130a6dda2 --- 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 [2022-12-13 20:07:25,289 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 20:07:25,291 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 20:07:25,315 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 20:07:25,315 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 20:07:25,316 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 20:07:25,318 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 20:07:25,319 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 20:07:25,321 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 20:07:25,322 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 20:07:25,323 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 20:07:25,324 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 20:07:25,324 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 20:07:25,325 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 20:07:25,327 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 20:07:25,328 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 20:07:25,329 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 20:07:25,330 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 20:07:25,331 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 20:07:25,333 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 20:07:25,335 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 20:07:25,336 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 20:07:25,337 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 20:07:25,338 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 20:07:25,341 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 20:07:25,342 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 20:07:25,342 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 20:07:25,343 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 20:07:25,343 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 20:07:25,344 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 20:07:25,344 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 20:07:25,344 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 20:07:25,345 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 20:07:25,345 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 20:07:25,346 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 20:07:25,347 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 20:07:25,347 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 20:07:25,348 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 20:07:25,348 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 20:07:25,349 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 20:07:25,349 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 20:07:25,350 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daaf54cb-ed3d-42c3-a750-76d813a829ff/bin/uautomizer-uyxdKDjOR8/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2022-12-13 20:07:25,373 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 20:07:25,374 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 20:07:25,374 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 20:07:25,374 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 20:07:25,375 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 20:07:25,375 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 20:07:25,376 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 20:07:25,376 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 20:07:25,376 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 20:07:25,376 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 20:07:25,376 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 20:07:25,376 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-13 20:07:25,377 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 20:07:25,377 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 20:07:25,377 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 20:07:25,377 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-12-13 20:07:25,377 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-12-13 20:07:25,378 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-12-13 20:07:25,378 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 20:07:25,378 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-12-13 20:07:25,378 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-12-13 20:07:25,378 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-12-13 20:07:25,378 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 20:07:25,379 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 20:07:25,379 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 20:07:25,379 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 20:07:25,379 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 20:07:25,379 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 20:07:25,380 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 20:07:25,380 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 20:07:25,380 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-12-13 20:07:25,380 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-12-13 20:07:25,380 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 20:07:25,381 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 20:07:25,381 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 20:07:25,381 INFO L138 SettingsManager]: * Logic for external solver=AUFBV [2022-12-13 20:07:25,381 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 20:07:25,381 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_daaf54cb-ed3d-42c3-a750-76d813a829ff/bin/uautomizer-uyxdKDjOR8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daaf54cb-ed3d-42c3-a750-76d813a829ff/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0d955c319d131d508b8618ef571ba23da865842e29989ccda626762130a6dda2 [2022-12-13 20:07:25,654 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 20:07:25,669 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 20:07:25,671 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 20:07:25,672 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 20:07:25,672 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 20:07:25,673 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daaf54cb-ed3d-42c3-a750-76d813a829ff/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/pthread-memsafety/fillarray1.i [2022-12-13 20:07:28,335 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 20:07:28,548 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 20:07:28,549 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daaf54cb-ed3d-42c3-a750-76d813a829ff/sv-benchmarks/c/pthread-memsafety/fillarray1.i [2022-12-13 20:07:28,568 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daaf54cb-ed3d-42c3-a750-76d813a829ff/bin/uautomizer-uyxdKDjOR8/data/cb3b0215f/30484a3aa82e4f26829fda894d6afa89/FLAGa3cc3c6ca [2022-12-13 20:07:28,582 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daaf54cb-ed3d-42c3-a750-76d813a829ff/bin/uautomizer-uyxdKDjOR8/data/cb3b0215f/30484a3aa82e4f26829fda894d6afa89 [2022-12-13 20:07:28,584 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 20:07:28,585 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 20:07:28,587 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 20:07:28,587 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 20:07:28,590 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 20:07:28,591 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 08:07:28" (1/1) ... [2022-12-13 20:07:28,592 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@370190d1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:07:28, skipping insertion in model container [2022-12-13 20:07:28,592 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 08:07:28" (1/1) ... [2022-12-13 20:07:28,598 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 20:07:28,638 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 20:07:28,965 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 20:07:28,975 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-12-13 20:07:28,986 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 20:07:29,019 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 20:07:29,023 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 20:07:29,055 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 20:07:29,090 INFO L208 MainTranslator]: Completed translation [2022-12-13 20:07:29,090 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:07:29 WrapperNode [2022-12-13 20:07:29,090 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 20:07:29,091 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 20:07:29,091 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 20:07:29,091 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 20:07:29,097 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:07:29" (1/1) ... [2022-12-13 20:07:29,108 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:07:29" (1/1) ... [2022-12-13 20:07:29,122 INFO L138 Inliner]: procedures = 263, calls = 16, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 52 [2022-12-13 20:07:29,122 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 20:07:29,123 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 20:07:29,123 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 20:07:29,123 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 20:07:29,129 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:07:29" (1/1) ... [2022-12-13 20:07:29,129 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:07:29" (1/1) ... [2022-12-13 20:07:29,131 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:07:29" (1/1) ... [2022-12-13 20:07:29,131 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:07:29" (1/1) ... [2022-12-13 20:07:29,136 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:07:29" (1/1) ... [2022-12-13 20:07:29,139 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:07:29" (1/1) ... [2022-12-13 20:07:29,140 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:07:29" (1/1) ... [2022-12-13 20:07:29,141 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:07:29" (1/1) ... [2022-12-13 20:07:29,143 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 20:07:29,144 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 20:07:29,144 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 20:07:29,144 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 20:07:29,145 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:07:29" (1/1) ... [2022-12-13 20:07:29,149 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 20:07:29,157 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daaf54cb-ed3d-42c3-a750-76d813a829ff/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 20:07:29,166 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daaf54cb-ed3d-42c3-a750-76d813a829ff/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 20:07:29,168 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daaf54cb-ed3d-42c3-a750-76d813a829ff/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 20:07:29,202 INFO L130 BoogieDeclarations]: Found specification of procedure t1 [2022-12-13 20:07:29,203 INFO L138 BoogieDeclarations]: Found implementation of procedure t1 [2022-12-13 20:07:29,203 INFO L130 BoogieDeclarations]: Found specification of procedure t2 [2022-12-13 20:07:29,203 INFO L138 BoogieDeclarations]: Found implementation of procedure t2 [2022-12-13 20:07:29,203 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 20:07:29,203 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 20:07:29,203 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-12-13 20:07:29,203 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-12-13 20:07:29,204 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 20:07:29,204 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 20:07:29,205 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-12-13 20:07:29,327 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 20:07:29,329 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 20:07:29,569 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 20:07:29,575 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 20:07:29,575 INFO L300 CfgBuilder]: Removed 4 assume(true) statements. [2022-12-13 20:07:29,577 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 08:07:29 BoogieIcfgContainer [2022-12-13 20:07:29,577 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 20:07:29,580 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 20:07:29,580 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 20:07:29,583 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 20:07:29,583 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 08:07:28" (1/3) ... [2022-12-13 20:07:29,584 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5612fe24 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 08:07:29, skipping insertion in model container [2022-12-13 20:07:29,584 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:07:29" (2/3) ... [2022-12-13 20:07:29,584 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5612fe24 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 08:07:29, skipping insertion in model container [2022-12-13 20:07:29,584 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 08:07:29" (3/3) ... [2022-12-13 20:07:29,586 INFO L112 eAbstractionObserver]: Analyzing ICFG fillarray1.i [2022-12-13 20:07:29,604 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 20:07:29,604 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 12 error locations. [2022-12-13 20:07:29,604 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-13 20:07:29,671 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-12-13 20:07:29,697 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 103 places, 105 transitions, 220 flow [2022-12-13 20:07:29,727 INFO L130 PetriNetUnfolder]: 8/109 cut-off events. [2022-12-13 20:07:29,727 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 20:07:29,731 INFO L83 FinitePrefix]: Finished finitePrefix Result has 116 conditions, 109 events. 8/109 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 151 event pairs, 0 based on Foata normal form. 0/87 useless extension candidates. Maximal degree in co-relation 71. Up to 3 conditions per place. [2022-12-13 20:07:29,731 INFO L82 GeneralOperation]: Start removeDead. Operand has 103 places, 105 transitions, 220 flow [2022-12-13 20:07:29,734 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 101 places, 103 transitions, 212 flow [2022-12-13 20:07:29,737 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2022-12-13 20:07:29,744 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 101 places, 103 transitions, 212 flow [2022-12-13 20:07:29,746 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 101 places, 103 transitions, 212 flow [2022-12-13 20:07:29,747 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 101 places, 103 transitions, 212 flow [2022-12-13 20:07:29,765 INFO L130 PetriNetUnfolder]: 8/109 cut-off events. [2022-12-13 20:07:29,765 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 20:07:29,766 INFO L83 FinitePrefix]: Finished finitePrefix Result has 116 conditions, 109 events. 8/109 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 151 event pairs, 0 based on Foata normal form. 0/87 useless extension candidates. Maximal degree in co-relation 71. Up to 3 conditions per place. [2022-12-13 20:07:29,767 INFO L119 LiptonReduction]: Number of co-enabled transitions 2546 [2022-12-13 20:07:38,324 INFO L134 LiptonReduction]: Checked pairs total: 7730 [2022-12-13 20:07:38,324 INFO L136 LiptonReduction]: Total number of compositions: 85 [2022-12-13 20:07:38,340 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 20:07:38,345 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=PETRI_NET, 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;@4619eb42, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 20:07:38,345 INFO L358 AbstractCegarLoop]: Starting to check reachability of 18 error locations. [2022-12-13 20:07:38,346 INFO L130 PetriNetUnfolder]: 0/1 cut-off events. [2022-12-13 20:07:38,346 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 20:07:38,347 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 20:07:38,347 INFO L209 CegarLoopForPetriNet]: trace histogram [1] [2022-12-13 20:07:38,347 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 15 more)] === [2022-12-13 20:07:38,350 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:07:38,351 INFO L85 PathProgramCache]: Analyzing trace with hash 400, now seen corresponding path program 1 times [2022-12-13 20:07:38,359 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 20:07:38,359 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1343487194] [2022-12-13 20:07:38,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:07:38,360 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 [2022-12-13 20:07:38,360 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daaf54cb-ed3d-42c3-a750-76d813a829ff/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 20:07:38,361 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daaf54cb-ed3d-42c3-a750-76d813a829ff/bin/uautomizer-uyxdKDjOR8/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) [2022-12-13 20:07:38,362 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daaf54cb-ed3d-42c3-a750-76d813a829ff/bin/uautomizer-uyxdKDjOR8/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 [2022-12-13 20:07:38,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:07:38,407 INFO L263 TraceCheckSpWp]: Trace formula consists of 3 conjuncts, 1 conjunts are in the unsatisfiable core [2022-12-13 20:07:38,410 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 20:07:38,414 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 20:07:38,414 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 20:07:38,415 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 20:07:38,415 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1343487194] [2022-12-13 20:07:38,415 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1343487194] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:07:38,415 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:07:38,416 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-12-13 20:07:38,417 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2006652154] [2022-12-13 20:07:38,417 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:07:38,424 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-13 20:07:38,424 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 20:07:38,438 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-13 20:07:38,439 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-13 20:07:38,440 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 99 out of 190 [2022-12-13 20:07:38,441 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 43 transitions, 92 flow. Second operand has 2 states, 2 states have (on average 99.5) internal successors, (199), 2 states have internal predecessors, (199), 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) [2022-12-13 20:07:38,441 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 20:07:38,441 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 99 of 190 [2022-12-13 20:07:38,442 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 20:07:38,646 INFO L130 PetriNetUnfolder]: 569/1096 cut-off events. [2022-12-13 20:07:38,647 INFO L131 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2022-12-13 20:07:38,653 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1953 conditions, 1096 events. 569/1096 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 83. Compared 6245 event pairs, 476 based on Foata normal form. 95/890 useless extension candidates. Maximal degree in co-relation 1938. Up to 840 conditions per place. [2022-12-13 20:07:38,662 INFO L137 encePairwiseOnDemand]: 186/190 looper letters, 25 selfloop transitions, 0 changer transitions 0/39 dead transitions. [2022-12-13 20:07:38,662 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 39 transitions, 134 flow [2022-12-13 20:07:38,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 20:07:38,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2022-12-13 20:07:38,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 227 transitions. [2022-12-13 20:07:38,672 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5973684210526315 [2022-12-13 20:07:38,672 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 227 transitions. [2022-12-13 20:07:38,673 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 227 transitions. [2022-12-13 20:07:38,674 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 20:07:38,675 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 227 transitions. [2022-12-13 20:07:38,677 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 113.5) internal successors, (227), 2 states have internal predecessors, (227), 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) [2022-12-13 20:07:38,680 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 190.0) internal successors, (570), 3 states have internal predecessors, (570), 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) [2022-12-13 20:07:38,681 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 190.0) internal successors, (570), 3 states have internal predecessors, (570), 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) [2022-12-13 20:07:38,682 INFO L175 Difference]: Start difference. First operand has 43 places, 43 transitions, 92 flow. Second operand 2 states and 227 transitions. [2022-12-13 20:07:38,683 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 39 transitions, 134 flow [2022-12-13 20:07:38,684 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 39 transitions, 132 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-12-13 20:07:38,685 INFO L231 Difference]: Finished difference. Result has 40 places, 39 transitions, 82 flow [2022-12-13 20:07:38,687 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=190, PETRI_DIFFERENCE_MINUEND_FLOW=82, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=82, PETRI_PLACES=40, PETRI_TRANSITIONS=39} [2022-12-13 20:07:38,689 INFO L288 CegarLoopForPetriNet]: 43 programPoint places, -3 predicate places. [2022-12-13 20:07:38,689 INFO L495 AbstractCegarLoop]: Abstraction has has 40 places, 39 transitions, 82 flow [2022-12-13 20:07:38,690 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 99.5) internal successors, (199), 2 states have internal predecessors, (199), 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) [2022-12-13 20:07:38,690 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 20:07:38,690 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1] [2022-12-13 20:07:38,702 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daaf54cb-ed3d-42c3-a750-76d813a829ff/bin/uautomizer-uyxdKDjOR8/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 [2022-12-13 20:07:38,890 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daaf54cb-ed3d-42c3-a750-76d813a829ff/bin/uautomizer-uyxdKDjOR8/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 [2022-12-13 20:07:38,891 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 15 more)] === [2022-12-13 20:07:38,891 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:07:38,891 INFO L85 PathProgramCache]: Analyzing trace with hash 12526, now seen corresponding path program 1 times [2022-12-13 20:07:38,891 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 20:07:38,892 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1807393249] [2022-12-13 20:07:38,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:07:38,892 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 [2022-12-13 20:07:38,892 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daaf54cb-ed3d-42c3-a750-76d813a829ff/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 20:07:38,893 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daaf54cb-ed3d-42c3-a750-76d813a829ff/bin/uautomizer-uyxdKDjOR8/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) [2022-12-13 20:07:38,894 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daaf54cb-ed3d-42c3-a750-76d813a829ff/bin/uautomizer-uyxdKDjOR8/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 [2022-12-13 20:07:38,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:07:38,926 INFO L263 TraceCheckSpWp]: Trace formula consists of 23 conjuncts, 2 conjunts are in the unsatisfiable core [2022-12-13 20:07:38,927 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 20:07:38,941 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 20:07:38,941 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 20:07:38,941 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 20:07:38,941 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1807393249] [2022-12-13 20:07:38,941 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1807393249] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:07:38,942 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:07:38,942 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-13 20:07:38,942 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2122293550] [2022-12-13 20:07:38,942 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:07:38,943 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 20:07:38,943 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 20:07:38,943 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 20:07:38,944 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 20:07:38,988 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 89 out of 190 [2022-12-13 20:07:38,989 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 39 transitions, 82 flow. Second operand has 3 states, 3 states have (on average 89.66666666666667) internal successors, (269), 3 states have internal predecessors, (269), 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) [2022-12-13 20:07:38,989 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 20:07:38,989 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 89 of 190 [2022-12-13 20:07:38,990 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 20:07:39,171 INFO L130 PetriNetUnfolder]: 717/1315 cut-off events. [2022-12-13 20:07:39,172 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 20:07:39,173 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2409 conditions, 1315 events. 717/1315 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 95. Compared 7454 event pairs, 547 based on Foata normal form. 0/941 useless extension candidates. Maximal degree in co-relation 2406. Up to 957 conditions per place. [2022-12-13 20:07:39,178 INFO L137 encePairwiseOnDemand]: 187/190 looper letters, 37 selfloop transitions, 1 changer transitions 2/52 dead transitions. [2022-12-13 20:07:39,178 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 52 transitions, 188 flow [2022-12-13 20:07:39,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 20:07:39,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 20:07:39,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 308 transitions. [2022-12-13 20:07:39,181 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5403508771929825 [2022-12-13 20:07:39,181 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 308 transitions. [2022-12-13 20:07:39,181 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 308 transitions. [2022-12-13 20:07:39,182 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 20:07:39,182 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 308 transitions. [2022-12-13 20:07:39,184 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 102.66666666666667) internal successors, (308), 3 states have internal predecessors, (308), 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) [2022-12-13 20:07:39,186 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 190.0) internal successors, (760), 4 states have internal predecessors, (760), 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) [2022-12-13 20:07:39,186 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 190.0) internal successors, (760), 4 states have internal predecessors, (760), 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) [2022-12-13 20:07:39,186 INFO L175 Difference]: Start difference. First operand has 40 places, 39 transitions, 82 flow. Second operand 3 states and 308 transitions. [2022-12-13 20:07:39,187 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 52 transitions, 188 flow [2022-12-13 20:07:39,187 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 52 transitions, 188 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-12-13 20:07:39,188 INFO L231 Difference]: Finished difference. Result has 43 places, 38 transitions, 85 flow [2022-12-13 20:07:39,188 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=190, PETRI_DIFFERENCE_MINUEND_FLOW=82, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=85, PETRI_PLACES=43, PETRI_TRANSITIONS=38} [2022-12-13 20:07:39,189 INFO L288 CegarLoopForPetriNet]: 43 programPoint places, 0 predicate places. [2022-12-13 20:07:39,189 INFO L495 AbstractCegarLoop]: Abstraction has has 43 places, 38 transitions, 85 flow [2022-12-13 20:07:39,189 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 89.66666666666667) internal successors, (269), 3 states have internal predecessors, (269), 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) [2022-12-13 20:07:39,189 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 20:07:39,189 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2022-12-13 20:07:39,196 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daaf54cb-ed3d-42c3-a750-76d813a829ff/bin/uautomizer-uyxdKDjOR8/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 [2022-12-13 20:07:39,390 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daaf54cb-ed3d-42c3-a750-76d813a829ff/bin/uautomizer-uyxdKDjOR8/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 [2022-12-13 20:07:39,390 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 15 more)] === [2022-12-13 20:07:39,391 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:07:39,391 INFO L85 PathProgramCache]: Analyzing trace with hash 394584, now seen corresponding path program 1 times [2022-12-13 20:07:39,392 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 20:07:39,392 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1815484621] [2022-12-13 20:07:39,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:07:39,392 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 [2022-12-13 20:07:39,393 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daaf54cb-ed3d-42c3-a750-76d813a829ff/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 20:07:39,394 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daaf54cb-ed3d-42c3-a750-76d813a829ff/bin/uautomizer-uyxdKDjOR8/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) [2022-12-13 20:07:39,395 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daaf54cb-ed3d-42c3-a750-76d813a829ff/bin/uautomizer-uyxdKDjOR8/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 [2022-12-13 20:07:39,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:07:39,458 INFO L263 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-13 20:07:39,459 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 20:07:39,525 INFO L321 Elim1Store]: treesize reduction 39, result has 40.0 percent of original size [2022-12-13 20:07:39,525 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 12 treesize of output 33 [2022-12-13 20:07:39,544 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 20:07:39,544 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 20:07:39,544 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 20:07:39,544 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1815484621] [2022-12-13 20:07:39,545 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1815484621] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:07:39,545 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:07:39,545 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-13 20:07:39,545 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1216350817] [2022-12-13 20:07:39,545 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:07:39,545 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 20:07:39,546 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 20:07:39,546 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 20:07:39,546 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 20:07:39,600 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 91 out of 190 [2022-12-13 20:07:39,600 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 38 transitions, 85 flow. Second operand has 3 states, 3 states have (on average 92.0) internal successors, (276), 3 states have internal predecessors, (276), 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) [2022-12-13 20:07:39,601 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 20:07:39,601 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 91 of 190 [2022-12-13 20:07:39,601 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 20:07:39,775 INFO L130 PetriNetUnfolder]: 621/1134 cut-off events. [2022-12-13 20:07:39,775 INFO L131 PetriNetUnfolder]: For 42/42 co-relation queries the response was YES. [2022-12-13 20:07:39,777 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2182 conditions, 1134 events. 621/1134 cut-off events. For 42/42 co-relation queries the response was YES. Maximal size of possible extension queue 95. Compared 6510 event pairs, 258 based on Foata normal form. 0/844 useless extension candidates. Maximal degree in co-relation 2177. Up to 477 conditions per place. [2022-12-13 20:07:39,787 INFO L137 encePairwiseOnDemand]: 187/190 looper letters, 34 selfloop transitions, 2 changer transitions 0/49 dead transitions. [2022-12-13 20:07:39,787 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 44 places, 49 transitions, 179 flow [2022-12-13 20:07:39,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 20:07:39,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 20:07:39,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 310 transitions. [2022-12-13 20:07:39,789 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.543859649122807 [2022-12-13 20:07:39,789 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 310 transitions. [2022-12-13 20:07:39,790 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 310 transitions. [2022-12-13 20:07:39,790 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 20:07:39,790 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 310 transitions. [2022-12-13 20:07:39,791 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 103.33333333333333) internal successors, (310), 3 states have internal predecessors, (310), 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) [2022-12-13 20:07:39,793 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 190.0) internal successors, (760), 4 states have internal predecessors, (760), 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) [2022-12-13 20:07:39,794 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 190.0) internal successors, (760), 4 states have internal predecessors, (760), 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) [2022-12-13 20:07:39,794 INFO L175 Difference]: Start difference. First operand has 43 places, 38 transitions, 85 flow. Second operand 3 states and 310 transitions. [2022-12-13 20:07:39,794 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 44 places, 49 transitions, 179 flow [2022-12-13 20:07:39,799 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 49 transitions, 175 flow, removed 1 selfloop flow, removed 2 redundant places. [2022-12-13 20:07:39,799 INFO L231 Difference]: Finished difference. Result has 42 places, 37 transitions, 83 flow [2022-12-13 20:07:39,800 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=190, PETRI_DIFFERENCE_MINUEND_FLOW=79, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=83, PETRI_PLACES=42, PETRI_TRANSITIONS=37} [2022-12-13 20:07:39,800 INFO L288 CegarLoopForPetriNet]: 43 programPoint places, -1 predicate places. [2022-12-13 20:07:39,800 INFO L495 AbstractCegarLoop]: Abstraction has has 42 places, 37 transitions, 83 flow [2022-12-13 20:07:39,801 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 92.0) internal successors, (276), 3 states have internal predecessors, (276), 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) [2022-12-13 20:07:39,801 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 20:07:39,801 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2022-12-13 20:07:39,812 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daaf54cb-ed3d-42c3-a750-76d813a829ff/bin/uautomizer-uyxdKDjOR8/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 [2022-12-13 20:07:40,001 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daaf54cb-ed3d-42c3-a750-76d813a829ff/bin/uautomizer-uyxdKDjOR8/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 [2022-12-13 20:07:40,002 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 15 more)] === [2022-12-13 20:07:40,002 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:07:40,002 INFO L85 PathProgramCache]: Analyzing trace with hash 394583, now seen corresponding path program 1 times [2022-12-13 20:07:40,003 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 20:07:40,003 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1159555032] [2022-12-13 20:07:40,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:07:40,003 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 [2022-12-13 20:07:40,003 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daaf54cb-ed3d-42c3-a750-76d813a829ff/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 20:07:40,004 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daaf54cb-ed3d-42c3-a750-76d813a829ff/bin/uautomizer-uyxdKDjOR8/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) [2022-12-13 20:07:40,005 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daaf54cb-ed3d-42c3-a750-76d813a829ff/bin/uautomizer-uyxdKDjOR8/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 [2022-12-13 20:07:40,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:07:40,067 INFO L263 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 4 conjunts are in the unsatisfiable core [2022-12-13 20:07:40,068 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 20:07:40,115 INFO L321 Elim1Store]: treesize reduction 33, result has 40.0 percent of original size [2022-12-13 20:07:40,115 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 12 treesize of output 27 [2022-12-13 20:07:40,135 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 20:07:40,135 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 20:07:40,136 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 20:07:40,136 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1159555032] [2022-12-13 20:07:40,136 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1159555032] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:07:40,136 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:07:40,136 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-13 20:07:40,136 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2130165953] [2022-12-13 20:07:40,137 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:07:40,137 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 20:07:40,137 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 20:07:40,137 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 20:07:40,137 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 20:07:40,189 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 94 out of 190 [2022-12-13 20:07:40,190 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 37 transitions, 83 flow. Second operand has 3 states, 3 states have (on average 95.0) internal successors, (285), 3 states have internal predecessors, (285), 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) [2022-12-13 20:07:40,190 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 20:07:40,190 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 94 of 190 [2022-12-13 20:07:40,190 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 20:07:40,324 INFO L130 PetriNetUnfolder]: 543/1039 cut-off events. [2022-12-13 20:07:40,324 INFO L131 PetriNetUnfolder]: For 39/39 co-relation queries the response was YES. [2022-12-13 20:07:40,325 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1957 conditions, 1039 events. 543/1039 cut-off events. For 39/39 co-relation queries the response was YES. Maximal size of possible extension queue 85. Compared 5949 event pairs, 324 based on Foata normal form. 0/805 useless extension candidates. Maximal degree in co-relation 1953. Up to 577 conditions per place. [2022-12-13 20:07:40,328 INFO L137 encePairwiseOnDemand]: 187/190 looper letters, 32 selfloop transitions, 2 changer transitions 0/48 dead transitions. [2022-12-13 20:07:40,328 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 48 transitions, 173 flow [2022-12-13 20:07:40,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 20:07:40,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 20:07:40,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 317 transitions. [2022-12-13 20:07:40,330 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5561403508771929 [2022-12-13 20:07:40,330 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 317 transitions. [2022-12-13 20:07:40,330 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 317 transitions. [2022-12-13 20:07:40,330 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 20:07:40,330 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 317 transitions. [2022-12-13 20:07:40,331 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 105.66666666666667) internal successors, (317), 3 states have internal predecessors, (317), 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) [2022-12-13 20:07:40,332 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 190.0) internal successors, (760), 4 states have internal predecessors, (760), 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) [2022-12-13 20:07:40,332 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 190.0) internal successors, (760), 4 states have internal predecessors, (760), 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) [2022-12-13 20:07:40,332 INFO L175 Difference]: Start difference. First operand has 42 places, 37 transitions, 83 flow. Second operand 3 states and 317 transitions. [2022-12-13 20:07:40,332 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 48 transitions, 173 flow [2022-12-13 20:07:40,332 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 48 transitions, 169 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-12-13 20:07:40,333 INFO L231 Difference]: Finished difference. Result has 41 places, 36 transitions, 81 flow [2022-12-13 20:07:40,333 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=190, PETRI_DIFFERENCE_MINUEND_FLOW=77, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=81, PETRI_PLACES=41, PETRI_TRANSITIONS=36} [2022-12-13 20:07:40,334 INFO L288 CegarLoopForPetriNet]: 43 programPoint places, -2 predicate places. [2022-12-13 20:07:40,334 INFO L495 AbstractCegarLoop]: Abstraction has has 41 places, 36 transitions, 81 flow [2022-12-13 20:07:40,334 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 95.0) internal successors, (285), 3 states have internal predecessors, (285), 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) [2022-12-13 20:07:40,334 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 20:07:40,334 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2022-12-13 20:07:40,345 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daaf54cb-ed3d-42c3-a750-76d813a829ff/bin/uautomizer-uyxdKDjOR8/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 [2022-12-13 20:07:40,535 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daaf54cb-ed3d-42c3-a750-76d813a829ff/bin/uautomizer-uyxdKDjOR8/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 [2022-12-13 20:07:40,535 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_FREE === [ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 15 more)] === [2022-12-13 20:07:40,536 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:07:40,536 INFO L85 PathProgramCache]: Analyzing trace with hash 379205335, now seen corresponding path program 1 times [2022-12-13 20:07:40,536 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 20:07:40,536 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1779645200] [2022-12-13 20:07:40,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:07:40,537 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 [2022-12-13 20:07:40,537 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daaf54cb-ed3d-42c3-a750-76d813a829ff/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 20:07:40,538 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daaf54cb-ed3d-42c3-a750-76d813a829ff/bin/uautomizer-uyxdKDjOR8/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) [2022-12-13 20:07:40,540 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daaf54cb-ed3d-42c3-a750-76d813a829ff/bin/uautomizer-uyxdKDjOR8/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 [2022-12-13 20:07:40,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:07:40,689 INFO L263 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 2 conjunts are in the unsatisfiable core [2022-12-13 20:07:40,690 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 20:07:40,701 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 20:07:40,701 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 20:07:40,701 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 20:07:40,701 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1779645200] [2022-12-13 20:07:40,702 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1779645200] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:07:40,702 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:07:40,702 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-13 20:07:40,702 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [611538144] [2022-12-13 20:07:40,702 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:07:40,703 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 20:07:40,703 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 20:07:40,703 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 20:07:40,703 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 20:07:40,713 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 95 out of 190 [2022-12-13 20:07:40,714 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 36 transitions, 81 flow. Second operand has 3 states, 3 states have (on average 96.66666666666667) internal successors, (290), 3 states have internal predecessors, (290), 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) [2022-12-13 20:07:40,714 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 20:07:40,714 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 95 of 190 [2022-12-13 20:07:40,714 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 20:07:40,817 INFO L130 PetriNetUnfolder]: 466/878 cut-off events. [2022-12-13 20:07:40,818 INFO L131 PetriNetUnfolder]: For 42/42 co-relation queries the response was YES. [2022-12-13 20:07:40,819 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1677 conditions, 878 events. 466/878 cut-off events. For 42/42 co-relation queries the response was YES. Maximal size of possible extension queue 70. Compared 4769 event pairs, 395 based on Foata normal form. 0/653 useless extension candidates. Maximal degree in co-relation 1673. Up to 696 conditions per place. [2022-12-13 20:07:40,826 INFO L137 encePairwiseOnDemand]: 188/190 looper letters, 20 selfloop transitions, 1 changer transitions 0/35 dead transitions. [2022-12-13 20:07:40,826 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 35 transitions, 121 flow [2022-12-13 20:07:40,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 20:07:40,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 20:07:40,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 307 transitions. [2022-12-13 20:07:40,829 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5385964912280702 [2022-12-13 20:07:40,829 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 307 transitions. [2022-12-13 20:07:40,829 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 307 transitions. [2022-12-13 20:07:40,829 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 20:07:40,829 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 307 transitions. [2022-12-13 20:07:40,830 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 102.33333333333333) internal successors, (307), 3 states have internal predecessors, (307), 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) [2022-12-13 20:07:40,831 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 190.0) internal successors, (760), 4 states have internal predecessors, (760), 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) [2022-12-13 20:07:40,832 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 190.0) internal successors, (760), 4 states have internal predecessors, (760), 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) [2022-12-13 20:07:40,832 INFO L175 Difference]: Start difference. First operand has 41 places, 36 transitions, 81 flow. Second operand 3 states and 307 transitions. [2022-12-13 20:07:40,832 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 35 transitions, 121 flow [2022-12-13 20:07:40,833 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 35 transitions, 117 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-12-13 20:07:40,833 INFO L231 Difference]: Finished difference. Result has 40 places, 35 transitions, 77 flow [2022-12-13 20:07:40,834 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=190, PETRI_DIFFERENCE_MINUEND_FLOW=75, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=77, PETRI_PLACES=40, PETRI_TRANSITIONS=35} [2022-12-13 20:07:40,834 INFO L288 CegarLoopForPetriNet]: 43 programPoint places, -3 predicate places. [2022-12-13 20:07:40,834 INFO L495 AbstractCegarLoop]: Abstraction has has 40 places, 35 transitions, 77 flow [2022-12-13 20:07:40,835 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 96.66666666666667) internal successors, (290), 3 states have internal predecessors, (290), 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) [2022-12-13 20:07:40,835 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 20:07:40,835 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2022-12-13 20:07:40,846 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daaf54cb-ed3d-42c3-a750-76d813a829ff/bin/uautomizer-uyxdKDjOR8/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 [2022-12-13 20:07:41,035 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daaf54cb-ed3d-42c3-a750-76d813a829ff/bin/uautomizer-uyxdKDjOR8/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 [2022-12-13 20:07:41,036 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_FREE === [ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 15 more)] === [2022-12-13 20:07:41,036 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:07:41,036 INFO L85 PathProgramCache]: Analyzing trace with hash 379205342, now seen corresponding path program 1 times [2022-12-13 20:07:41,036 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 20:07:41,036 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [393982825] [2022-12-13 20:07:41,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:07:41,037 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 [2022-12-13 20:07:41,037 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daaf54cb-ed3d-42c3-a750-76d813a829ff/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 20:07:41,038 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daaf54cb-ed3d-42c3-a750-76d813a829ff/bin/uautomizer-uyxdKDjOR8/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) [2022-12-13 20:07:41,039 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daaf54cb-ed3d-42c3-a750-76d813a829ff/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2022-12-13 20:07:41,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:07:41,098 INFO L263 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 7 conjunts are in the unsatisfiable core [2022-12-13 20:07:41,100 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 20:07:41,139 INFO L321 Elim1Store]: treesize reduction 46, result has 29.2 percent of original size [2022-12-13 20:07:41,139 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 3 case distinctions, treesize of input 22 treesize of output 33 [2022-12-13 20:07:41,172 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 20:07:41,172 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 20:07:41,172 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 20:07:41,173 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [393982825] [2022-12-13 20:07:41,173 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [393982825] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:07:41,173 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:07:41,173 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-13 20:07:41,173 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2062806921] [2022-12-13 20:07:41,173 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:07:41,173 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 20:07:41,174 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 20:07:41,174 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 20:07:41,174 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 20:07:41,245 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 93 out of 190 [2022-12-13 20:07:41,246 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 35 transitions, 77 flow. Second operand has 3 states, 3 states have (on average 94.66666666666667) internal successors, (284), 3 states have internal predecessors, (284), 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) [2022-12-13 20:07:41,246 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 20:07:41,246 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 93 of 190 [2022-12-13 20:07:41,246 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 20:07:41,360 INFO L130 PetriNetUnfolder]: 448/812 cut-off events. [2022-12-13 20:07:41,360 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 20:07:41,361 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1569 conditions, 812 events. 448/812 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 75. Compared 4311 event pairs, 165 based on Foata normal form. 0/657 useless extension candidates. Maximal degree in co-relation 1565. Up to 477 conditions per place. [2022-12-13 20:07:41,363 INFO L137 encePairwiseOnDemand]: 187/190 looper letters, 31 selfloop transitions, 2 changer transitions 0/46 dead transitions. [2022-12-13 20:07:41,363 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 46 transitions, 165 flow [2022-12-13 20:07:41,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 20:07:41,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 20:07:41,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 313 transitions. [2022-12-13 20:07:41,365 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5491228070175439 [2022-12-13 20:07:41,365 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 313 transitions. [2022-12-13 20:07:41,365 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 313 transitions. [2022-12-13 20:07:41,366 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 20:07:41,366 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 313 transitions. [2022-12-13 20:07:41,366 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 104.33333333333333) internal successors, (313), 3 states have internal predecessors, (313), 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) [2022-12-13 20:07:41,367 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 190.0) internal successors, (760), 4 states have internal predecessors, (760), 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) [2022-12-13 20:07:41,367 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 190.0) internal successors, (760), 4 states have internal predecessors, (760), 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) [2022-12-13 20:07:41,367 INFO L175 Difference]: Start difference. First operand has 40 places, 35 transitions, 77 flow. Second operand 3 states and 313 transitions. [2022-12-13 20:07:41,367 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 46 transitions, 165 flow [2022-12-13 20:07:41,368 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 46 transitions, 164 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-13 20:07:41,368 INFO L231 Difference]: Finished difference. Result has 40 places, 34 transitions, 78 flow [2022-12-13 20:07:41,368 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=190, PETRI_DIFFERENCE_MINUEND_FLOW=74, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=34, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=78, PETRI_PLACES=40, PETRI_TRANSITIONS=34} [2022-12-13 20:07:41,369 INFO L288 CegarLoopForPetriNet]: 43 programPoint places, -3 predicate places. [2022-12-13 20:07:41,369 INFO L495 AbstractCegarLoop]: Abstraction has has 40 places, 34 transitions, 78 flow [2022-12-13 20:07:41,369 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 94.66666666666667) internal successors, (284), 3 states have internal predecessors, (284), 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) [2022-12-13 20:07:41,369 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 20:07:41,369 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2022-12-13 20:07:41,381 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daaf54cb-ed3d-42c3-a750-76d813a829ff/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2022-12-13 20:07:41,569 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daaf54cb-ed3d-42c3-a750-76d813a829ff/bin/uautomizer-uyxdKDjOR8/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 [2022-12-13 20:07:41,570 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_FREE === [ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 15 more)] === [2022-12-13 20:07:41,570 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:07:41,570 INFO L85 PathProgramCache]: Analyzing trace with hash 379205336, now seen corresponding path program 1 times [2022-12-13 20:07:41,570 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 20:07:41,571 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1842361500] [2022-12-13 20:07:41,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:07:41,571 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 [2022-12-13 20:07:41,571 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daaf54cb-ed3d-42c3-a750-76d813a829ff/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 20:07:41,572 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daaf54cb-ed3d-42c3-a750-76d813a829ff/bin/uautomizer-uyxdKDjOR8/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) [2022-12-13 20:07:41,573 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daaf54cb-ed3d-42c3-a750-76d813a829ff/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2022-12-13 20:07:41,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:07:41,625 INFO L263 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 2 conjunts are in the unsatisfiable core [2022-12-13 20:07:41,626 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 20:07:41,639 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 20:07:41,639 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 20:07:41,640 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 20:07:41,640 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1842361500] [2022-12-13 20:07:41,640 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1842361500] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:07:41,640 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:07:41,640 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-13 20:07:41,640 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1939666740] [2022-12-13 20:07:41,640 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:07:41,641 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 20:07:41,641 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 20:07:41,641 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 20:07:41,641 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 20:07:41,668 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 95 out of 190 [2022-12-13 20:07:41,668 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 34 transitions, 78 flow. Second operand has 3 states, 3 states have (on average 96.66666666666667) internal successors, (290), 3 states have internal predecessors, (290), 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) [2022-12-13 20:07:41,668 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 20:07:41,668 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 95 of 190 [2022-12-13 20:07:41,669 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 20:07:41,748 INFO L130 PetriNetUnfolder]: 300/580 cut-off events. [2022-12-13 20:07:41,749 INFO L131 PetriNetUnfolder]: For 39/39 co-relation queries the response was YES. [2022-12-13 20:07:41,749 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1142 conditions, 580 events. 300/580 cut-off events. For 39/39 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 2939 event pairs, 253 based on Foata normal form. 42/523 useless extension candidates. Maximal degree in co-relation 1138. Up to 458 conditions per place. [2022-12-13 20:07:41,751 INFO L137 encePairwiseOnDemand]: 188/190 looper letters, 18 selfloop transitions, 1 changer transitions 0/33 dead transitions. [2022-12-13 20:07:41,751 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 33 transitions, 114 flow [2022-12-13 20:07:41,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 20:07:41,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 20:07:41,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 305 transitions. [2022-12-13 20:07:41,753 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5350877192982456 [2022-12-13 20:07:41,753 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 305 transitions. [2022-12-13 20:07:41,753 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 305 transitions. [2022-12-13 20:07:41,753 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 20:07:41,754 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 305 transitions. [2022-12-13 20:07:41,754 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 101.66666666666667) internal successors, (305), 3 states have internal predecessors, (305), 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) [2022-12-13 20:07:41,756 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 190.0) internal successors, (760), 4 states have internal predecessors, (760), 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) [2022-12-13 20:07:41,756 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 190.0) internal successors, (760), 4 states have internal predecessors, (760), 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) [2022-12-13 20:07:41,756 INFO L175 Difference]: Start difference. First operand has 40 places, 34 transitions, 78 flow. Second operand 3 states and 305 transitions. [2022-12-13 20:07:41,756 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 33 transitions, 114 flow [2022-12-13 20:07:41,757 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 33 transitions, 110 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-12-13 20:07:41,757 INFO L231 Difference]: Finished difference. Result has 39 places, 33 transitions, 74 flow [2022-12-13 20:07:41,758 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=190, PETRI_DIFFERENCE_MINUEND_FLOW=72, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=33, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=74, PETRI_PLACES=39, PETRI_TRANSITIONS=33} [2022-12-13 20:07:41,758 INFO L288 CegarLoopForPetriNet]: 43 programPoint places, -4 predicate places. [2022-12-13 20:07:41,758 INFO L495 AbstractCegarLoop]: Abstraction has has 39 places, 33 transitions, 74 flow [2022-12-13 20:07:41,759 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 96.66666666666667) internal successors, (290), 3 states have internal predecessors, (290), 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) [2022-12-13 20:07:41,759 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 20:07:41,759 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:07:41,770 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daaf54cb-ed3d-42c3-a750-76d813a829ff/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Ended with exit code 0 [2022-12-13 20:07:41,959 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daaf54cb-ed3d-42c3-a750-76d813a829ff/bin/uautomizer-uyxdKDjOR8/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 [2022-12-13 20:07:41,961 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 15 more)] === [2022-12-13 20:07:41,962 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:07:41,962 INFO L85 PathProgramCache]: Analyzing trace with hash 1142827360, now seen corresponding path program 1 times [2022-12-13 20:07:41,963 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 20:07:41,963 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1333415060] [2022-12-13 20:07:41,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:07:41,964 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 [2022-12-13 20:07:41,964 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daaf54cb-ed3d-42c3-a750-76d813a829ff/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 20:07:41,967 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daaf54cb-ed3d-42c3-a750-76d813a829ff/bin/uautomizer-uyxdKDjOR8/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) [2022-12-13 20:07:41,970 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daaf54cb-ed3d-42c3-a750-76d813a829ff/bin/uautomizer-uyxdKDjOR8/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 (9)] Waiting until timeout for monitored process [2022-12-13 20:07:42,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:07:42,103 INFO L263 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 17 conjunts are in the unsatisfiable core [2022-12-13 20:07:42,105 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 20:07:42,283 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 20:07:42,283 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 20:07:42,283 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 20:07:42,283 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1333415060] [2022-12-13 20:07:42,283 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1333415060] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:07:42,283 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:07:42,283 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 20:07:42,284 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [160681113] [2022-12-13 20:07:42,284 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:07:42,284 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 20:07:42,284 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 20:07:42,284 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 20:07:42,284 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-12-13 20:07:44,300 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-13 20:07:46,752 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-13 20:07:48,805 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-13 20:07:50,930 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-13 20:07:53,101 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-13 20:07:55,121 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-13 20:07:57,466 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-13 20:07:59,474 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-13 20:07:59,475 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 190 [2022-12-13 20:07:59,475 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 39 places, 33 transitions, 74 flow. Second operand has 6 states, 6 states have (on average 78.33333333333333) internal successors, (470), 6 states have internal predecessors, (470), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 20:07:59,475 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 20:07:59,475 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 190 [2022-12-13 20:07:59,475 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 20:08:02,483 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-12-13 20:08:02,948 INFO L130 PetriNetUnfolder]: 399/661 cut-off events. [2022-12-13 20:08:02,948 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 20:08:02,948 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1337 conditions, 661 events. 399/661 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 62. Compared 3107 event pairs, 52 based on Foata normal form. 0/585 useless extension candidates. Maximal degree in co-relation 1333. Up to 252 conditions per place. [2022-12-13 20:08:02,950 INFO L137 encePairwiseOnDemand]: 185/190 looper letters, 56 selfloop transitions, 4 changer transitions 0/71 dead transitions. [2022-12-13 20:08:02,950 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 71 transitions, 270 flow [2022-12-13 20:08:02,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 20:08:02,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-13 20:08:02,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 523 transitions. [2022-12-13 20:08:02,952 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4587719298245614 [2022-12-13 20:08:02,952 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 523 transitions. [2022-12-13 20:08:02,953 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 523 transitions. [2022-12-13 20:08:02,953 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 20:08:02,953 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 523 transitions. [2022-12-13 20:08:02,954 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 87.16666666666667) internal successors, (523), 6 states have internal predecessors, (523), 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) [2022-12-13 20:08:02,955 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 190.0) internal successors, (1330), 7 states have internal predecessors, (1330), 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) [2022-12-13 20:08:02,955 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 190.0) internal successors, (1330), 7 states have internal predecessors, (1330), 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) [2022-12-13 20:08:02,955 INFO L175 Difference]: Start difference. First operand has 39 places, 33 transitions, 74 flow. Second operand 6 states and 523 transitions. [2022-12-13 20:08:02,955 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 71 transitions, 270 flow [2022-12-13 20:08:02,955 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 71 transitions, 269 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-13 20:08:02,956 INFO L231 Difference]: Finished difference. Result has 42 places, 32 transitions, 79 flow [2022-12-13 20:08:02,956 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=190, PETRI_DIFFERENCE_MINUEND_FLOW=71, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=32, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=79, PETRI_PLACES=42, PETRI_TRANSITIONS=32} [2022-12-13 20:08:02,957 INFO L288 CegarLoopForPetriNet]: 43 programPoint places, -1 predicate places. [2022-12-13 20:08:02,957 INFO L495 AbstractCegarLoop]: Abstraction has has 42 places, 32 transitions, 79 flow [2022-12-13 20:08:02,957 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 78.33333333333333) internal successors, (470), 6 states have internal predecessors, (470), 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) [2022-12-13 20:08:02,957 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 20:08:02,957 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:08:02,968 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daaf54cb-ed3d-42c3-a750-76d813a829ff/bin/uautomizer-uyxdKDjOR8/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 (9)] Ended with exit code 0 [2022-12-13 20:08:03,157 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daaf54cb-ed3d-42c3-a750-76d813a829ff/bin/uautomizer-uyxdKDjOR8/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 [2022-12-13 20:08:03,158 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting t1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 15 more)] === [2022-12-13 20:08:03,159 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:08:03,159 INFO L85 PathProgramCache]: Analyzing trace with hash 1816875148, now seen corresponding path program 1 times [2022-12-13 20:08:03,159 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 20:08:03,160 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1379773028] [2022-12-13 20:08:03,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:08:03,160 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 [2022-12-13 20:08:03,160 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daaf54cb-ed3d-42c3-a750-76d813a829ff/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 20:08:03,162 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daaf54cb-ed3d-42c3-a750-76d813a829ff/bin/uautomizer-uyxdKDjOR8/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) [2022-12-13 20:08:03,163 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daaf54cb-ed3d-42c3-a750-76d813a829ff/bin/uautomizer-uyxdKDjOR8/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 (10)] Waiting until timeout for monitored process [2022-12-13 20:08:03,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 20:08:03,225 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 20:08:03,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 20:08:03,269 INFO L130 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2022-12-13 20:08:03,270 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-13 20:08:03,270 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location t1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (17 of 18 remaining) [2022-12-13 20:08:03,272 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK (16 of 18 remaining) [2022-12-13 20:08:03,272 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (15 of 18 remaining) [2022-12-13 20:08:03,272 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (14 of 18 remaining) [2022-12-13 20:08:03,273 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (13 of 18 remaining) [2022-12-13 20:08:03,273 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (12 of 18 remaining) [2022-12-13 20:08:03,273 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_FREE (11 of 18 remaining) [2022-12-13 20:08:03,273 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_FREE (10 of 18 remaining) [2022-12-13 20:08:03,273 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_FREE (9 of 18 remaining) [2022-12-13 20:08:03,273 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 18 remaining) [2022-12-13 20:08:03,273 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (7 of 18 remaining) [2022-12-13 20:08:03,273 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 18 remaining) [2022-12-13 20:08:03,274 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 18 remaining) [2022-12-13 20:08:03,274 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 18 remaining) [2022-12-13 20:08:03,274 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 18 remaining) [2022-12-13 20:08:03,274 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 18 remaining) [2022-12-13 20:08:03,274 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (1 of 18 remaining) [2022-12-13 20:08:03,274 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (0 of 18 remaining) [2022-12-13 20:08:03,288 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daaf54cb-ed3d-42c3-a750-76d813a829ff/bin/uautomizer-uyxdKDjOR8/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 (10)] Ended with exit code 0 [2022-12-13 20:08:03,475 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daaf54cb-ed3d-42c3-a750-76d813a829ff/bin/uautomizer-uyxdKDjOR8/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 [2022-12-13 20:08:03,475 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:08:03,482 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-13 20:08:03,482 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-13 20:08:03,518 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.12 08:08:03 BasicIcfg [2022-12-13 20:08:03,518 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-13 20:08:03,518 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 20:08:03,518 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 20:08:03,518 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 20:08:03,519 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 08:07:29" (3/4) ... [2022-12-13 20:08:03,520 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-12-13 20:08:03,553 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daaf54cb-ed3d-42c3-a750-76d813a829ff/bin/uautomizer-uyxdKDjOR8/witness.graphml [2022-12-13 20:08:03,554 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 20:08:03,554 INFO L158 Benchmark]: Toolchain (without parser) took 34968.65ms. Allocated memory is still 79.7MB. Free memory was 56.7MB in the beginning and 31.0MB in the end (delta: 25.8MB). Peak memory consumption was 27.4MB. Max. memory is 16.1GB. [2022-12-13 20:08:03,554 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 62.9MB. Free memory is still 41.0MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 20:08:03,554 INFO L158 Benchmark]: CACSL2BoogieTranslator took 503.78ms. Allocated memory is still 79.7MB. Free memory was 56.6MB in the beginning and 42.7MB in the end (delta: 13.9MB). Peak memory consumption was 19.9MB. Max. memory is 16.1GB. [2022-12-13 20:08:03,555 INFO L158 Benchmark]: Boogie Procedure Inliner took 31.04ms. Allocated memory is still 79.7MB. Free memory was 42.7MB in the beginning and 40.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 20:08:03,555 INFO L158 Benchmark]: Boogie Preprocessor took 20.81ms. Allocated memory is still 79.7MB. Free memory was 40.6MB in the beginning and 38.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 20:08:03,555 INFO L158 Benchmark]: RCFGBuilder took 433.41ms. Allocated memory is still 79.7MB. Free memory was 38.5MB in the beginning and 44.2MB in the end (delta: -5.7MB). Peak memory consumption was 8.0MB. Max. memory is 16.1GB. [2022-12-13 20:08:03,555 INFO L158 Benchmark]: TraceAbstraction took 33938.18ms. Allocated memory is still 79.7MB. Free memory was 43.5MB in the beginning and 35.2MB in the end (delta: 8.3MB). Peak memory consumption was 7.9MB. Max. memory is 16.1GB. [2022-12-13 20:08:03,555 INFO L158 Benchmark]: Witness Printer took 35.45ms. Allocated memory is still 79.7MB. Free memory was 35.2MB in the beginning and 31.0MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-12-13 20:08:03,556 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 62.9MB. Free memory is still 41.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 503.78ms. Allocated memory is still 79.7MB. Free memory was 56.6MB in the beginning and 42.7MB in the end (delta: 13.9MB). Peak memory consumption was 19.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 31.04ms. Allocated memory is still 79.7MB. Free memory was 42.7MB in the beginning and 40.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 20.81ms. Allocated memory is still 79.7MB. Free memory was 40.6MB in the beginning and 38.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 433.41ms. Allocated memory is still 79.7MB. Free memory was 38.5MB in the beginning and 44.2MB in the end (delta: -5.7MB). Peak memory consumption was 8.0MB. Max. memory is 16.1GB. * TraceAbstraction took 33938.18ms. Allocated memory is still 79.7MB. Free memory was 43.5MB in the beginning and 35.2MB in the end (delta: 8.3MB). Peak memory consumption was 7.9MB. Max. memory is 16.1GB. * Witness Printer took 35.45ms. Allocated memory is still 79.7MB. Free memory was 35.2MB in the beginning and 31.0MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 8.6s, 101 PlacesBefore, 43 PlacesAfterwards, 103 TransitionsBefore, 43 TransitionsAfterwards, 2546 CoEnabledTransitionPairs, 7 FixpointIterations, 40 TrivialSequentialCompositions, 37 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 6 ConcurrentYvCompositions, 2 ChoiceCompositions, 85 TotalNumberOfCompositions, 7730 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2462, independent: 2218, independent conditional: 0, independent unconditional: 2218, dependent: 244, dependent conditional: 0, dependent unconditional: 244, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1057, independent: 1021, independent conditional: 0, independent unconditional: 1021, dependent: 36, dependent conditional: 0, dependent unconditional: 36, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 2462, independent: 1197, independent conditional: 0, independent unconditional: 1197, dependent: 208, dependent conditional: 0, dependent unconditional: 208, unknown: 1057, unknown conditional: 0, unknown unconditional: 1057] , Statistics on independence cache: Total cache size (in pairs): 135, Positive cache size: 113, Positive conditional cache size: 0, Positive unconditional cache size: 113, Negative cache size: 22, Negative conditional cache size: 0, Negative unconditional cache size: 22, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - CounterExampleResult [Line: -1]: pointer dereference may fail pointer dereference may fail We found a FailurePath: [L1037] 0 int size; [L1038] 0 int ind; [L1039] 0 int j = 2, i = 1; [L1040] 0 int x, y, z; [L1068] 0 size = __VERIFIER_nondet_int() [L1069] COND FALSE 0 !(size < 1 || size > 20) [L1072] 0 int *a = (int *)malloc(size); [L1073] 0 pthread_t id1, id2; [L1074] 0 ind = 0 [L1075] FCALL, FORK 0 pthread_create(&id1, ((void *)0), t1, a) VAL [\old(argc)=5, a={2:0}, arg={2:0}, argc=5, argv={9:6}, argv={9:6}, i=1, id1={7:0}, id2={15:0}, ind=0, j=2, pthread_create(&id1, ((void *)0), t1, a)=0, size=2, x=0, y=0, z=0] [L1042] 1 x = 1 VAL [arg={2:0}, arg={2:0}, i=1, ind=0, j=2, size=2, x=1, y=0, z=0] [L1043] 1 y = 1 [L1044] 1 int *a = (int *)arg; VAL [a={2:0}, arg={2:0}, arg={2:0}, i=1, ind=0, j=2, size=2, x=1, y=1, z=0] [L1045] COND FALSE 1 !(y == 1 && z) VAL [a={2:0}, arg={2:0}, arg={2:0}, i=1, ind=0, j=2, size=2, x=1, y=1, z=0] [L1047] COND TRUE 1 ind < size - 1 VAL [a={2:0}, arg={2:0}, arg={2:0}, i=1, ind=0, j=2, size=2, x=1, y=1, z=0] [L1048] 1 ++ind VAL [a={2:0}, arg={2:0}, arg={2:0}, i=1, ind=1, j=2, size=2, x=1, y=1, z=0] [L1049] 1 a[ind] = i - UnprovableResult [Line: 1067]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed 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: 1077]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1077]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1077]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1075]: 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: 1076]: 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: -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. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 131 locations, 18 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 33.8s, OverallIterations: 9, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 22.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 8.6s, HoareTripleCheckerStatistics: 12 mSolverCounterUnknown, 441 SdHoareTripleChecker+Valid, 21.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 255 mSDsluCounter, 66 SdHoareTripleChecker+Invalid, 21.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 25 mSDsCounter, 25 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 754 IncrementalHoareTripleChecker+Invalid, 791 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 25 mSolverCounterUnsat, 41 mSDtfsCounter, 754 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 24 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=92occurred in iteration=0, InterpolantAutomatonStates: 26, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 41 NumberOfCodeBlocks, 41 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 24 ConstructedInterpolants, 7 QuantifiedInterpolants, 372 SizeOfPredicates, 8 NumberOfNonLiveVariables, 444 ConjunctsInSsa, 38 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 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! [2022-12-13 20:08:03,573 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daaf54cb-ed3d-42c3-a750-76d813a829ff/bin/uautomizer-uyxdKDjOR8/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)