./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 4e7fbc69 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_e4b73716-b0ea-42b1-a498-e8ad1515bf1e/bin/uautomizer-QkZJyEgLgS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4b73716-b0ea-42b1-a498-e8ad1515bf1e/bin/uautomizer-QkZJyEgLgS/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4b73716-b0ea-42b1-a498-e8ad1515bf1e/bin/uautomizer-QkZJyEgLgS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4b73716-b0ea-42b1-a498-e8ad1515bf1e/bin/uautomizer-QkZJyEgLgS/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/pthread-memsafety/fillarray1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4b73716-b0ea-42b1-a498-e8ad1515bf1e/bin/uautomizer-QkZJyEgLgS/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4b73716-b0ea-42b1-a498-e8ad1515bf1e/bin/uautomizer-QkZJyEgLgS --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-4e7fbc6 [2022-11-23 03:41:53,561 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-23 03:41:53,564 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-23 03:41:53,604 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-23 03:41:53,605 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-23 03:41:53,609 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-23 03:41:53,611 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-23 03:41:53,614 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-23 03:41:53,616 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-23 03:41:53,621 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-23 03:41:53,624 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-23 03:41:53,626 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-23 03:41:53,626 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-23 03:41:53,629 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-23 03:41:53,631 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-23 03:41:53,633 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-23 03:41:53,635 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-23 03:41:53,636 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-23 03:41:53,638 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-23 03:41:53,644 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-23 03:41:53,646 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-23 03:41:53,648 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-23 03:41:53,650 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-23 03:41:53,651 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-23 03:41:53,665 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-23 03:41:53,665 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-23 03:41:53,665 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-23 03:41:53,668 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-23 03:41:53,668 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-23 03:41:53,669 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-23 03:41:53,670 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-23 03:41:53,671 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-23 03:41:53,673 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-23 03:41:53,674 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-23 03:41:53,676 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-23 03:41:53,677 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-23 03:41:53,677 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-23 03:41:53,678 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-23 03:41:53,678 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-23 03:41:53,679 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-23 03:41:53,680 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-23 03:41:53,681 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4b73716-b0ea-42b1-a498-e8ad1515bf1e/bin/uautomizer-QkZJyEgLgS/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2022-11-23 03:41:53,721 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-23 03:41:53,721 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-23 03:41:53,722 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-23 03:41:53,722 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-23 03:41:53,723 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-23 03:41:53,723 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-23 03:41:53,724 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-23 03:41:53,724 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-23 03:41:53,724 INFO L138 SettingsManager]: * Use SBE=true [2022-11-23 03:41:53,725 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-23 03:41:53,726 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-23 03:41:53,726 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-23 03:41:53,726 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-23 03:41:53,727 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-23 03:41:53,727 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-23 03:41:53,727 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-11-23 03:41:53,727 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-11-23 03:41:53,727 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-11-23 03:41:53,728 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-23 03:41:53,728 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-23 03:41:53,728 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-23 03:41:53,728 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-23 03:41:53,729 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-23 03:41:53,729 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-23 03:41:53,729 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-23 03:41:53,729 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 03:41:53,730 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-23 03:41:53,730 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-23 03:41:53,731 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-23 03:41:53,731 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-23 03:41:53,731 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-23 03:41:53,731 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-11-23 03:41:53,732 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-23 03:41:53,732 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_e4b73716-b0ea-42b1-a498-e8ad1515bf1e/bin/uautomizer-QkZJyEgLgS/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4b73716-b0ea-42b1-a498-e8ad1515bf1e/bin/uautomizer-QkZJyEgLgS Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0d955c319d131d508b8618ef571ba23da865842e29989ccda626762130a6dda2 [2022-11-23 03:41:54,049 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-23 03:41:54,086 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-23 03:41:54,088 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-23 03:41:54,090 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-23 03:41:54,090 INFO L275 PluginConnector]: CDTParser initialized [2022-11-23 03:41:54,092 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4b73716-b0ea-42b1-a498-e8ad1515bf1e/bin/uautomizer-QkZJyEgLgS/../../sv-benchmarks/c/pthread-memsafety/fillarray1.i [2022-11-23 03:41:57,215 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-23 03:41:57,485 INFO L351 CDTParser]: Found 1 translation units. [2022-11-23 03:41:57,486 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4b73716-b0ea-42b1-a498-e8ad1515bf1e/sv-benchmarks/c/pthread-memsafety/fillarray1.i [2022-11-23 03:41:57,501 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4b73716-b0ea-42b1-a498-e8ad1515bf1e/bin/uautomizer-QkZJyEgLgS/data/2176a15f4/90875b6d49a44a50962ae6d9e530a2a6/FLAG7f452f102 [2022-11-23 03:41:57,516 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4b73716-b0ea-42b1-a498-e8ad1515bf1e/bin/uautomizer-QkZJyEgLgS/data/2176a15f4/90875b6d49a44a50962ae6d9e530a2a6 [2022-11-23 03:41:57,519 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-23 03:41:57,521 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-23 03:41:57,522 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-23 03:41:57,522 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-23 03:41:57,526 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-23 03:41:57,527 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:41:57" (1/1) ... [2022-11-23 03:41:57,528 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7b97b36f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:41:57, skipping insertion in model container [2022-11-23 03:41:57,529 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:41:57" (1/1) ... [2022-11-23 03:41:57,536 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-23 03:41:57,583 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-23 03:41:58,120 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 03:41:58,135 ERROR L326 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types of different sizes while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2022-11-23 03:41:58,136 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@2dc32630 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:41:58, skipping insertion in model container [2022-11-23 03:41:58,136 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-23 03:41:58,137 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2022-11-23 03:41:58,141 INFO L158 Benchmark]: Toolchain (without parser) took 619.06ms. Allocated memory was 138.4MB in the beginning and 186.6MB in the end (delta: 48.2MB). Free memory was 74.7MB in the beginning and 154.4MB in the end (delta: -79.7MB). Peak memory consumption was 17.1MB. Max. memory is 16.1GB. [2022-11-23 03:41:58,142 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 138.4MB. Free memory is still 72.1MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-23 03:41:58,143 INFO L158 Benchmark]: CACSL2BoogieTranslator took 614.74ms. Allocated memory was 138.4MB in the beginning and 186.6MB in the end (delta: 48.2MB). Free memory was 74.3MB in the beginning and 154.4MB in the end (delta: -80.1MB). Peak memory consumption was 17.1MB. Max. memory is 16.1GB. [2022-11-23 03:41:58,145 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 138.4MB. Free memory is still 72.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 614.74ms. Allocated memory was 138.4MB in the beginning and 186.6MB in the end (delta: 48.2MB). Free memory was 74.3MB in the beginning and 154.4MB in the end (delta: -80.1MB). Peak memory consumption was 17.1MB. 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_e4b73716-b0ea-42b1-a498-e8ad1515bf1e/bin/uautomizer-QkZJyEgLgS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4b73716-b0ea-42b1-a498-e8ad1515bf1e/bin/uautomizer-QkZJyEgLgS/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4b73716-b0ea-42b1-a498-e8ad1515bf1e/bin/uautomizer-QkZJyEgLgS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4b73716-b0ea-42b1-a498-e8ad1515bf1e/bin/uautomizer-QkZJyEgLgS/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/pthread-memsafety/fillarray1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4b73716-b0ea-42b1-a498-e8ad1515bf1e/bin/uautomizer-QkZJyEgLgS/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4b73716-b0ea-42b1-a498-e8ad1515bf1e/bin/uautomizer-QkZJyEgLgS --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-4e7fbc6 [2022-11-23 03:42:00,464 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-23 03:42:00,467 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-23 03:42:00,514 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-23 03:42:00,515 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-23 03:42:00,516 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-23 03:42:00,517 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-23 03:42:00,519 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-23 03:42:00,521 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-23 03:42:00,522 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-23 03:42:00,523 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-23 03:42:00,524 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-23 03:42:00,524 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-23 03:42:00,525 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-23 03:42:00,526 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-23 03:42:00,527 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-23 03:42:00,528 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-23 03:42:00,529 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-23 03:42:00,531 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-23 03:42:00,532 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-23 03:42:00,534 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-23 03:42:00,535 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-23 03:42:00,536 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-23 03:42:00,537 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-23 03:42:00,541 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-23 03:42:00,541 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-23 03:42:00,541 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-23 03:42:00,542 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-23 03:42:00,543 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-23 03:42:00,544 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-23 03:42:00,544 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-23 03:42:00,545 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-23 03:42:00,546 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-23 03:42:00,546 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-23 03:42:00,547 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-23 03:42:00,548 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-23 03:42:00,548 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-23 03:42:00,549 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-23 03:42:00,549 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-23 03:42:00,550 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-23 03:42:00,550 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-23 03:42:00,551 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4b73716-b0ea-42b1-a498-e8ad1515bf1e/bin/uautomizer-QkZJyEgLgS/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2022-11-23 03:42:00,573 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-23 03:42:00,573 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-23 03:42:00,574 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-23 03:42:00,574 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-23 03:42:00,575 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-23 03:42:00,575 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-23 03:42:00,576 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-23 03:42:00,576 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-23 03:42:00,576 INFO L138 SettingsManager]: * Use SBE=true [2022-11-23 03:42:00,576 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-23 03:42:00,576 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-23 03:42:00,577 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-23 03:42:00,577 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-23 03:42:00,577 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-23 03:42:00,577 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-23 03:42:00,577 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-11-23 03:42:00,577 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-11-23 03:42:00,578 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-11-23 03:42:00,578 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-23 03:42:00,578 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-23 03:42:00,578 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-23 03:42:00,578 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-23 03:42:00,578 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-23 03:42:00,579 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-23 03:42:00,579 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-23 03:42:00,579 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-23 03:42:00,579 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-23 03:42:00,579 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 03:42:00,580 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-23 03:42:00,580 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-23 03:42:00,580 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-11-23 03:42:00,580 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-23 03:42:00,580 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-23 03:42:00,580 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-11-23 03:42:00,581 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-23 03:42:00,581 INFO L138 SettingsManager]: * Logic for external solver=AUFBV [2022-11-23 03:42:00,581 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_e4b73716-b0ea-42b1-a498-e8ad1515bf1e/bin/uautomizer-QkZJyEgLgS/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4b73716-b0ea-42b1-a498-e8ad1515bf1e/bin/uautomizer-QkZJyEgLgS Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0d955c319d131d508b8618ef571ba23da865842e29989ccda626762130a6dda2 [2022-11-23 03:42:00,943 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-23 03:42:00,971 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-23 03:42:00,975 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-23 03:42:00,977 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-23 03:42:00,977 INFO L275 PluginConnector]: CDTParser initialized [2022-11-23 03:42:00,979 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4b73716-b0ea-42b1-a498-e8ad1515bf1e/bin/uautomizer-QkZJyEgLgS/../../sv-benchmarks/c/pthread-memsafety/fillarray1.i [2022-11-23 03:42:04,060 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-23 03:42:04,385 INFO L351 CDTParser]: Found 1 translation units. [2022-11-23 03:42:04,386 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4b73716-b0ea-42b1-a498-e8ad1515bf1e/sv-benchmarks/c/pthread-memsafety/fillarray1.i [2022-11-23 03:42:04,401 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4b73716-b0ea-42b1-a498-e8ad1515bf1e/bin/uautomizer-QkZJyEgLgS/data/c34cd0212/c8948da2481f4de08a0c5c22fff48308/FLAG087da1eb1 [2022-11-23 03:42:04,421 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4b73716-b0ea-42b1-a498-e8ad1515bf1e/bin/uautomizer-QkZJyEgLgS/data/c34cd0212/c8948da2481f4de08a0c5c22fff48308 [2022-11-23 03:42:04,423 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-23 03:42:04,425 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-23 03:42:04,426 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-23 03:42:04,426 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-23 03:42:04,430 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-23 03:42:04,430 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:42:04" (1/1) ... [2022-11-23 03:42:04,432 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@10ca540b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:42:04, skipping insertion in model container [2022-11-23 03:42:04,432 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:42:04" (1/1) ... [2022-11-23 03:42:04,439 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-23 03:42:04,476 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-23 03:42:04,943 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 03:42:04,955 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-11-23 03:42:04,968 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-23 03:42:04,999 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 03:42:05,004 INFO L203 MainTranslator]: Completed pre-run [2022-11-23 03:42:05,044 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 03:42:05,104 INFO L208 MainTranslator]: Completed translation [2022-11-23 03:42:05,105 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:42:05 WrapperNode [2022-11-23 03:42:05,105 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-23 03:42:05,106 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-23 03:42:05,107 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-23 03:42:05,107 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-23 03:42:05,115 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:42:05" (1/1) ... [2022-11-23 03:42:05,133 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:42:05" (1/1) ... [2022-11-23 03:42:05,155 INFO L138 Inliner]: procedures = 263, calls = 16, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 52 [2022-11-23 03:42:05,156 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-23 03:42:05,156 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-23 03:42:05,156 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-23 03:42:05,157 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-23 03:42:05,166 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:42:05" (1/1) ... [2022-11-23 03:42:05,166 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:42:05" (1/1) ... [2022-11-23 03:42:05,170 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:42:05" (1/1) ... [2022-11-23 03:42:05,170 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:42:05" (1/1) ... [2022-11-23 03:42:05,179 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:42:05" (1/1) ... [2022-11-23 03:42:05,183 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:42:05" (1/1) ... [2022-11-23 03:42:05,185 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:42:05" (1/1) ... [2022-11-23 03:42:05,187 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:42:05" (1/1) ... [2022-11-23 03:42:05,190 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-23 03:42:05,191 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-23 03:42:05,191 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-23 03:42:05,192 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-23 03:42:05,192 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:42:05" (1/1) ... [2022-11-23 03:42:05,199 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 03:42:05,224 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4b73716-b0ea-42b1-a498-e8ad1515bf1e/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 03:42:05,240 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4b73716-b0ea-42b1-a498-e8ad1515bf1e/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-23 03:42:05,263 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4b73716-b0ea-42b1-a498-e8ad1515bf1e/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-23 03:42:05,292 INFO L130 BoogieDeclarations]: Found specification of procedure t1 [2022-11-23 03:42:05,293 INFO L138 BoogieDeclarations]: Found implementation of procedure t1 [2022-11-23 03:42:05,293 INFO L130 BoogieDeclarations]: Found specification of procedure t2 [2022-11-23 03:42:05,293 INFO L138 BoogieDeclarations]: Found implementation of procedure t2 [2022-11-23 03:42:05,293 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-23 03:42:05,294 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-23 03:42:05,294 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-11-23 03:42:05,294 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-23 03:42:05,294 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-23 03:42:05,294 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-23 03:42:05,296 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-23 03:42:05,472 INFO L235 CfgBuilder]: Building ICFG [2022-11-23 03:42:05,474 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-23 03:42:05,885 INFO L276 CfgBuilder]: Performing block encoding [2022-11-23 03:42:05,893 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-23 03:42:05,893 INFO L300 CfgBuilder]: Removed 4 assume(true) statements. [2022-11-23 03:42:05,895 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:42:05 BoogieIcfgContainer [2022-11-23 03:42:05,895 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-23 03:42:05,898 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-23 03:42:05,898 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-23 03:42:05,901 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-23 03:42:05,902 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 03:42:04" (1/3) ... [2022-11-23 03:42:05,902 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2967706e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:42:05, skipping insertion in model container [2022-11-23 03:42:05,902 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:42:05" (2/3) ... [2022-11-23 03:42:05,903 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2967706e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:42:05, skipping insertion in model container [2022-11-23 03:42:05,903 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:42:05" (3/3) ... [2022-11-23 03:42:05,904 INFO L112 eAbstractionObserver]: Analyzing ICFG fillarray1.i [2022-11-23 03:42:05,924 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-23 03:42:05,924 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 12 error locations. [2022-11-23 03:42:05,924 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-23 03:42:05,998 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-23 03:42:06,038 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 103 places, 105 transitions, 220 flow [2022-11-23 03:42:06,085 INFO L130 PetriNetUnfolder]: 8/109 cut-off events. [2022-11-23 03:42:06,085 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-23 03:42:06,091 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 150 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. [2022-11-23 03:42:06,091 INFO L82 GeneralOperation]: Start removeDead. Operand has 103 places, 105 transitions, 220 flow [2022-11-23 03:42:06,096 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 101 places, 103 transitions, 212 flow [2022-11-23 03:42:06,100 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-23 03:42:06,116 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 101 places, 103 transitions, 212 flow [2022-11-23 03:42:06,126 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 101 places, 103 transitions, 212 flow [2022-11-23 03:42:06,131 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 101 places, 103 transitions, 212 flow [2022-11-23 03:42:06,179 INFO L130 PetriNetUnfolder]: 8/109 cut-off events. [2022-11-23 03:42:06,180 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-23 03:42:06,181 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 150 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. [2022-11-23 03:42:06,186 INFO L119 LiptonReduction]: Number of co-enabled transitions 2546 [2022-11-23 03:42:18,187 INFO L134 LiptonReduction]: Checked pairs total: 6894 [2022-11-23 03:42:18,188 INFO L136 LiptonReduction]: Total number of compositions: 92 [2022-11-23 03:42:18,204 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-23 03:42:18,212 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;@2997cf0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-23 03:42:18,212 INFO L358 AbstractCegarLoop]: Starting to check reachability of 18 error locations. [2022-11-23 03:42:18,214 INFO L130 PetriNetUnfolder]: 0/1 cut-off events. [2022-11-23 03:42:18,214 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-23 03:42:18,215 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-23 03:42:18,215 INFO L209 CegarLoopForPetriNet]: trace histogram [1] [2022-11-23 03:42:18,216 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)] === [2022-11-23 03:42:18,221 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:42:18,221 INFO L85 PathProgramCache]: Analyzing trace with hash 407, now seen corresponding path program 1 times [2022-11-23 03:42:18,234 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-23 03:42:18,235 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [718191174] [2022-11-23 03:42:18,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:42:18,235 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 03:42:18,236 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4b73716-b0ea-42b1-a498-e8ad1515bf1e/bin/uautomizer-QkZJyEgLgS/mathsat [2022-11-23 03:42:18,243 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4b73716-b0ea-42b1-a498-e8ad1515bf1e/bin/uautomizer-QkZJyEgLgS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-23 03:42:18,244 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4b73716-b0ea-42b1-a498-e8ad1515bf1e/bin/uautomizer-QkZJyEgLgS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-11-23 03:42:18,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:42:18,336 INFO L263 TraceCheckSpWp]: Trace formula consists of 3 conjuncts, 1 conjunts are in the unsatisfiable core [2022-11-23 03:42:18,340 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 03:42:18,344 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:42:18,345 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 03:42:18,346 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-23 03:42:18,347 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [718191174] [2022-11-23 03:42:18,347 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [718191174] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 03:42:18,348 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 03:42:18,348 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-11-23 03:42:18,350 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1509181183] [2022-11-23 03:42:18,351 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 03:42:18,360 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-23 03:42:18,360 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-23 03:42:18,388 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-23 03:42:18,390 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-23 03:42:18,392 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 99 out of 197 [2022-11-23 03:42:18,395 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) [2022-11-23 03:42:18,395 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-23 03:42:18,395 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 99 of 197 [2022-11-23 03:42:18,396 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-23 03:42:18,736 INFO L130 PetriNetUnfolder]: 583/1175 cut-off events. [2022-11-23 03:42:18,736 INFO L131 PetriNetUnfolder]: For 5/5 co-relation queries the response was YES. [2022-11-23 03:42:18,742 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2032 conditions, 1175 events. 583/1175 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 90. Compared 7002 event pairs, 476 based on Foata normal form. 95/925 useless extension candidates. Maximal degree in co-relation 2017. Up to 840 conditions per place. [2022-11-23 03:42:18,753 INFO L137 encePairwiseOnDemand]: 193/197 looper letters, 25 selfloop transitions, 0 changer transitions 0/39 dead transitions. [2022-11-23 03:42:18,753 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 39 transitions, 134 flow [2022-11-23 03:42:18,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-23 03:42:18,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2022-11-23 03:42:18,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 227 transitions. [2022-11-23 03:42:18,772 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5761421319796954 [2022-11-23 03:42:18,773 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 227 transitions. [2022-11-23 03:42:18,774 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 227 transitions. [2022-11-23 03:42:18,778 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-23 03:42:18,780 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 227 transitions. [2022-11-23 03:42:18,788 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) [2022-11-23 03:42:18,793 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 197.0) internal successors, (591), 3 states have internal predecessors, (591), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:42:18,794 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 197.0) internal successors, (591), 3 states have internal predecessors, (591), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:42:18,796 INFO L175 Difference]: Start difference. First operand has 43 places, 43 transitions, 92 flow. Second operand 2 states and 227 transitions. [2022-11-23 03:42:18,797 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 39 transitions, 134 flow [2022-11-23 03:42:18,800 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 39 transitions, 132 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-23 03:42:18,802 INFO L231 Difference]: Finished difference. Result has 40 places, 39 transitions, 82 flow [2022-11-23 03:42:18,804 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=197, 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} [2022-11-23 03:42:18,808 INFO L288 CegarLoopForPetriNet]: 43 programPoint places, -3 predicate places. [2022-11-23 03:42:18,808 INFO L495 AbstractCegarLoop]: Abstraction has has 40 places, 39 transitions, 82 flow [2022-11-23 03:42:18,809 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) [2022-11-23 03:42:18,809 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-23 03:42:18,809 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1] [2022-11-23 03:42:18,826 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4b73716-b0ea-42b1-a498-e8ad1515bf1e/bin/uautomizer-QkZJyEgLgS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-11-23 03:42:19,020 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4b73716-b0ea-42b1-a498-e8ad1515bf1e/bin/uautomizer-QkZJyEgLgS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 03:42:19,021 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)] === [2022-11-23 03:42:19,022 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:42:19,022 INFO L85 PathProgramCache]: Analyzing trace with hash 12771, now seen corresponding path program 1 times [2022-11-23 03:42:19,022 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-23 03:42:19,023 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1825016350] [2022-11-23 03:42:19,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:42:19,023 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 03:42:19,023 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4b73716-b0ea-42b1-a498-e8ad1515bf1e/bin/uautomizer-QkZJyEgLgS/mathsat [2022-11-23 03:42:19,024 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4b73716-b0ea-42b1-a498-e8ad1515bf1e/bin/uautomizer-QkZJyEgLgS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-23 03:42:19,074 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4b73716-b0ea-42b1-a498-e8ad1515bf1e/bin/uautomizer-QkZJyEgLgS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-11-23 03:42:19,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:42:19,108 INFO L263 TraceCheckSpWp]: Trace formula consists of 23 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-23 03:42:19,109 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 03:42:19,130 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:42:19,130 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 03:42:19,131 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-23 03:42:19,131 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1825016350] [2022-11-23 03:42:19,131 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1825016350] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 03:42:19,131 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 03:42:19,131 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-23 03:42:19,132 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [162424417] [2022-11-23 03:42:19,132 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 03:42:19,133 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 03:42:19,133 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-23 03:42:19,134 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 03:42:19,134 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 03:42:19,206 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 89 out of 197 [2022-11-23 03:42:19,207 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) [2022-11-23 03:42:19,207 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-23 03:42:19,207 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 89 of 197 [2022-11-23 03:42:19,207 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-23 03:42:19,542 INFO L130 PetriNetUnfolder]: 721/1340 cut-off events. [2022-11-23 03:42:19,543 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-23 03:42:19,547 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2434 conditions, 1340 events. 721/1340 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 105. Compared 7871 event pairs, 547 based on Foata normal form. 0/933 useless extension candidates. Maximal degree in co-relation 2431. Up to 957 conditions per place. [2022-11-23 03:42:19,555 INFO L137 encePairwiseOnDemand]: 194/197 looper letters, 37 selfloop transitions, 1 changer transitions 2/52 dead transitions. [2022-11-23 03:42:19,556 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 52 transitions, 188 flow [2022-11-23 03:42:19,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 03:42:19,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-23 03:42:19,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 308 transitions. [2022-11-23 03:42:19,563 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5211505922165821 [2022-11-23 03:42:19,564 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 308 transitions. [2022-11-23 03:42:19,564 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 308 transitions. [2022-11-23 03:42:19,564 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-23 03:42:19,565 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 308 transitions. [2022-11-23 03:42:19,567 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) [2022-11-23 03:42:19,570 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 197.0) internal successors, (788), 4 states have internal predecessors, (788), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:42:19,571 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 197.0) internal successors, (788), 4 states have internal predecessors, (788), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:42:19,571 INFO L175 Difference]: Start difference. First operand has 40 places, 39 transitions, 82 flow. Second operand 3 states and 308 transitions. [2022-11-23 03:42:19,571 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 52 transitions, 188 flow [2022-11-23 03:42:19,572 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 52 transitions, 188 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-23 03:42:19,573 INFO L231 Difference]: Finished difference. Result has 43 places, 38 transitions, 85 flow [2022-11-23 03:42:19,573 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=197, 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} [2022-11-23 03:42:19,576 INFO L288 CegarLoopForPetriNet]: 43 programPoint places, 0 predicate places. [2022-11-23 03:42:19,576 INFO L495 AbstractCegarLoop]: Abstraction has has 43 places, 38 transitions, 85 flow [2022-11-23 03:42:19,576 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) [2022-11-23 03:42:19,577 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-23 03:42:19,577 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2022-11-23 03:42:19,593 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4b73716-b0ea-42b1-a498-e8ad1515bf1e/bin/uautomizer-QkZJyEgLgS/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)] Forceful destruction successful, exit code 0 [2022-11-23 03:42:19,788 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4b73716-b0ea-42b1-a498-e8ad1515bf1e/bin/uautomizer-QkZJyEgLgS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 03:42:19,789 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 15 more)] === [2022-11-23 03:42:19,790 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:42:19,790 INFO L85 PathProgramCache]: Analyzing trace with hash 402273, now seen corresponding path program 1 times [2022-11-23 03:42:19,791 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-23 03:42:19,791 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [94756310] [2022-11-23 03:42:19,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:42:19,791 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 03:42:19,792 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4b73716-b0ea-42b1-a498-e8ad1515bf1e/bin/uautomizer-QkZJyEgLgS/mathsat [2022-11-23 03:42:19,793 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4b73716-b0ea-42b1-a498-e8ad1515bf1e/bin/uautomizer-QkZJyEgLgS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-23 03:42:19,798 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4b73716-b0ea-42b1-a498-e8ad1515bf1e/bin/uautomizer-QkZJyEgLgS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-11-23 03:42:19,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:42:19,871 INFO L263 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-23 03:42:19,873 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 03:42:20,007 INFO L321 Elim1Store]: treesize reduction 33, result has 40.0 percent of original size [2022-11-23 03:42:20,008 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 [2022-11-23 03:42:20,046 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:42:20,046 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 03:42:20,047 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-23 03:42:20,047 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [94756310] [2022-11-23 03:42:20,047 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [94756310] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 03:42:20,047 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 03:42:20,048 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-23 03:42:20,048 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2095661941] [2022-11-23 03:42:20,048 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 03:42:20,048 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 03:42:20,049 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-23 03:42:20,049 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 03:42:20,049 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 03:42:20,141 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 94 out of 197 [2022-11-23 03:42:20,141 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 38 transitions, 85 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) [2022-11-23 03:42:20,142 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-23 03:42:20,142 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 94 of 197 [2022-11-23 03:42:20,142 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-23 03:42:20,392 INFO L130 PetriNetUnfolder]: 560/1106 cut-off events. [2022-11-23 03:42:20,393 INFO L131 PetriNetUnfolder]: For 42/42 co-relation queries the response was YES. [2022-11-23 03:42:20,396 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2035 conditions, 1106 events. 560/1106 cut-off events. For 42/42 co-relation queries the response was YES. Maximal size of possible extension queue 91. Compared 6554 event pairs, 329 based on Foata normal form. 0/795 useless extension candidates. Maximal degree in co-relation 2030. Up to 588 conditions per place. [2022-11-23 03:42:20,401 INFO L137 encePairwiseOnDemand]: 194/197 looper letters, 33 selfloop transitions, 2 changer transitions 0/49 dead transitions. [2022-11-23 03:42:20,402 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 44 places, 49 transitions, 177 flow [2022-11-23 03:42:20,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 03:42:20,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-23 03:42:20,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 318 transitions. [2022-11-23 03:42:20,405 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5380710659898477 [2022-11-23 03:42:20,405 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 318 transitions. [2022-11-23 03:42:20,405 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 318 transitions. [2022-11-23 03:42:20,405 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-23 03:42:20,406 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 318 transitions. [2022-11-23 03:42:20,407 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 106.0) internal successors, (318), 3 states have internal predecessors, (318), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:42:20,409 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 197.0) internal successors, (788), 4 states have internal predecessors, (788), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:42:20,410 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 197.0) internal successors, (788), 4 states have internal predecessors, (788), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:42:20,410 INFO L175 Difference]: Start difference. First operand has 43 places, 38 transitions, 85 flow. Second operand 3 states and 318 transitions. [2022-11-23 03:42:20,410 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 44 places, 49 transitions, 177 flow [2022-11-23 03:42:20,417 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 49 transitions, 173 flow, removed 1 selfloop flow, removed 2 redundant places. [2022-11-23 03:42:20,418 INFO L231 Difference]: Finished difference. Result has 42 places, 37 transitions, 83 flow [2022-11-23 03:42:20,418 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=197, 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} [2022-11-23 03:42:20,420 INFO L288 CegarLoopForPetriNet]: 43 programPoint places, -1 predicate places. [2022-11-23 03:42:20,420 INFO L495 AbstractCegarLoop]: Abstraction has has 42 places, 37 transitions, 83 flow [2022-11-23 03:42:20,421 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) [2022-11-23 03:42:20,421 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-23 03:42:20,421 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2022-11-23 03:42:20,432 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4b73716-b0ea-42b1-a498-e8ad1515bf1e/bin/uautomizer-QkZJyEgLgS/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)] Forceful destruction successful, exit code 0 [2022-11-23 03:42:20,632 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4b73716-b0ea-42b1-a498-e8ad1515bf1e/bin/uautomizer-QkZJyEgLgS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 03:42:20,633 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 15 more)] === [2022-11-23 03:42:20,634 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:42:20,635 INFO L85 PathProgramCache]: Analyzing trace with hash 402271, now seen corresponding path program 1 times [2022-11-23 03:42:20,636 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-23 03:42:20,636 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [523507005] [2022-11-23 03:42:20,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:42:20,637 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 03:42:20,640 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4b73716-b0ea-42b1-a498-e8ad1515bf1e/bin/uautomizer-QkZJyEgLgS/mathsat [2022-11-23 03:42:20,642 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4b73716-b0ea-42b1-a498-e8ad1515bf1e/bin/uautomizer-QkZJyEgLgS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-23 03:42:20,691 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4b73716-b0ea-42b1-a498-e8ad1515bf1e/bin/uautomizer-QkZJyEgLgS/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 [2022-11-23 03:42:20,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:42:20,735 INFO L263 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-23 03:42:20,737 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 03:42:20,795 INFO L321 Elim1Store]: treesize reduction 39, result has 40.0 percent of original size [2022-11-23 03:42:20,795 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 12 treesize of output 33 [2022-11-23 03:42:20,817 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:42:20,822 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 03:42:20,823 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-23 03:42:20,824 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [523507005] [2022-11-23 03:42:20,824 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [523507005] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 03:42:20,824 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 03:42:20,824 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-23 03:42:20,825 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1155672788] [2022-11-23 03:42:20,825 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 03:42:20,825 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 03:42:20,825 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-23 03:42:20,827 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 03:42:20,827 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 03:42:20,926 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 91 out of 197 [2022-11-23 03:42:20,927 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 37 transitions, 83 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) [2022-11-23 03:42:20,927 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-23 03:42:20,927 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 91 of 197 [2022-11-23 03:42:20,927 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-23 03:42:21,139 INFO L130 PetriNetUnfolder]: 622/1159 cut-off events. [2022-11-23 03:42:21,139 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-23 03:42:21,142 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2196 conditions, 1159 events. 622/1159 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 103. Compared 6796 event pairs, 253 based on Foata normal form. 0/856 useless extension candidates. Maximal degree in co-relation 2192. Up to 477 conditions per place. [2022-11-23 03:42:21,148 INFO L137 encePairwiseOnDemand]: 194/197 looper letters, 33 selfloop transitions, 2 changer transitions 0/48 dead transitions. [2022-11-23 03:42:21,149 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 48 transitions, 175 flow [2022-11-23 03:42:21,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 03:42:21,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-23 03:42:21,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 309 transitions. [2022-11-23 03:42:21,151 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5228426395939086 [2022-11-23 03:42:21,152 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 309 transitions. [2022-11-23 03:42:21,152 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 309 transitions. [2022-11-23 03:42:21,152 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-23 03:42:21,152 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 309 transitions. [2022-11-23 03:42:21,153 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 103.0) internal successors, (309), 3 states have internal predecessors, (309), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:42:21,155 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 197.0) internal successors, (788), 4 states have internal predecessors, (788), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:42:21,156 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 197.0) internal successors, (788), 4 states have internal predecessors, (788), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:42:21,156 INFO L175 Difference]: Start difference. First operand has 42 places, 37 transitions, 83 flow. Second operand 3 states and 309 transitions. [2022-11-23 03:42:21,156 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 48 transitions, 175 flow [2022-11-23 03:42:21,159 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 48 transitions, 171 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-23 03:42:21,161 INFO L231 Difference]: Finished difference. Result has 41 places, 36 transitions, 81 flow [2022-11-23 03:42:21,161 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=197, 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} [2022-11-23 03:42:21,163 INFO L288 CegarLoopForPetriNet]: 43 programPoint places, -2 predicate places. [2022-11-23 03:42:21,164 INFO L495 AbstractCegarLoop]: Abstraction has has 41 places, 36 transitions, 81 flow [2022-11-23 03:42:21,164 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) [2022-11-23 03:42:21,164 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-23 03:42:21,164 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2022-11-23 03:42:21,176 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4b73716-b0ea-42b1-a498-e8ad1515bf1e/bin/uautomizer-QkZJyEgLgS/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)] Forceful destruction successful, exit code 0 [2022-11-23 03:42:21,376 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4b73716-b0ea-42b1-a498-e8ad1515bf1e/bin/uautomizer-QkZJyEgLgS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 03:42:21,376 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_FREE === [ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 15 more)] === [2022-11-23 03:42:21,377 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:42:21,377 INFO L85 PathProgramCache]: Analyzing trace with hash 386592543, now seen corresponding path program 1 times [2022-11-23 03:42:21,377 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-23 03:42:21,377 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [154964019] [2022-11-23 03:42:21,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:42:21,378 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 03:42:21,378 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4b73716-b0ea-42b1-a498-e8ad1515bf1e/bin/uautomizer-QkZJyEgLgS/mathsat [2022-11-23 03:42:21,379 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4b73716-b0ea-42b1-a498-e8ad1515bf1e/bin/uautomizer-QkZJyEgLgS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-23 03:42:21,402 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4b73716-b0ea-42b1-a498-e8ad1515bf1e/bin/uautomizer-QkZJyEgLgS/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 [2022-11-23 03:42:21,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:42:21,472 INFO L263 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-23 03:42:21,473 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 03:42:21,494 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:42:21,494 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 03:42:21,495 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-23 03:42:21,495 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [154964019] [2022-11-23 03:42:21,495 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [154964019] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 03:42:21,495 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 03:42:21,495 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-23 03:42:21,496 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1047784209] [2022-11-23 03:42:21,496 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 03:42:21,496 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 03:42:21,496 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-23 03:42:21,497 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 03:42:21,497 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 03:42:21,542 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 95 out of 197 [2022-11-23 03:42:21,543 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) [2022-11-23 03:42:21,543 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-23 03:42:21,543 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 95 of 197 [2022-11-23 03:42:21,543 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-23 03:42:21,701 INFO L130 PetriNetUnfolder]: 476/933 cut-off events. [2022-11-23 03:42:21,702 INFO L131 PetriNetUnfolder]: For 40/40 co-relation queries the response was YES. [2022-11-23 03:42:21,704 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1732 conditions, 933 events. 476/933 cut-off events. For 40/40 co-relation queries the response was YES. Maximal size of possible extension queue 73. Compared 5266 event pairs, 395 based on Foata normal form. 0/724 useless extension candidates. Maximal degree in co-relation 1728. Up to 696 conditions per place. [2022-11-23 03:42:21,708 INFO L137 encePairwiseOnDemand]: 195/197 looper letters, 20 selfloop transitions, 1 changer transitions 0/35 dead transitions. [2022-11-23 03:42:21,709 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 35 transitions, 121 flow [2022-11-23 03:42:21,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 03:42:21,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-23 03:42:21,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 307 transitions. [2022-11-23 03:42:21,711 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5194585448392555 [2022-11-23 03:42:21,711 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 307 transitions. [2022-11-23 03:42:21,712 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 307 transitions. [2022-11-23 03:42:21,712 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-23 03:42:21,712 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 307 transitions. [2022-11-23 03:42:21,713 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) [2022-11-23 03:42:21,714 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 197.0) internal successors, (788), 4 states have internal predecessors, (788), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:42:21,715 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 197.0) internal successors, (788), 4 states have internal predecessors, (788), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:42:21,715 INFO L175 Difference]: Start difference. First operand has 41 places, 36 transitions, 81 flow. Second operand 3 states and 307 transitions. [2022-11-23 03:42:21,715 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 35 transitions, 121 flow [2022-11-23 03:42:21,716 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 35 transitions, 117 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-23 03:42:21,717 INFO L231 Difference]: Finished difference. Result has 40 places, 35 transitions, 77 flow [2022-11-23 03:42:21,717 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=197, 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} [2022-11-23 03:42:21,718 INFO L288 CegarLoopForPetriNet]: 43 programPoint places, -3 predicate places. [2022-11-23 03:42:21,718 INFO L495 AbstractCegarLoop]: Abstraction has has 40 places, 35 transitions, 77 flow [2022-11-23 03:42:21,718 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) [2022-11-23 03:42:21,718 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-23 03:42:21,719 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2022-11-23 03:42:21,730 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4b73716-b0ea-42b1-a498-e8ad1515bf1e/bin/uautomizer-QkZJyEgLgS/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)] Forceful destruction successful, exit code 0 [2022-11-23 03:42:21,930 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4b73716-b0ea-42b1-a498-e8ad1515bf1e/bin/uautomizer-QkZJyEgLgS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 03:42:21,930 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)] === [2022-11-23 03:42:21,931 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:42:21,931 INFO L85 PathProgramCache]: Analyzing trace with hash 386592556, now seen corresponding path program 1 times [2022-11-23 03:42:21,931 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-23 03:42:21,931 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1284513313] [2022-11-23 03:42:21,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:42:21,931 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 03:42:21,931 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4b73716-b0ea-42b1-a498-e8ad1515bf1e/bin/uautomizer-QkZJyEgLgS/mathsat [2022-11-23 03:42:21,932 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4b73716-b0ea-42b1-a498-e8ad1515bf1e/bin/uautomizer-QkZJyEgLgS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-23 03:42:21,937 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4b73716-b0ea-42b1-a498-e8ad1515bf1e/bin/uautomizer-QkZJyEgLgS/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 [2022-11-23 03:42:22,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:42:22,032 INFO L263 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-23 03:42:22,034 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 03:42:22,086 INFO L321 Elim1Store]: treesize reduction 50, result has 23.1 percent of original size [2022-11-23 03:42:22,086 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 3 case distinctions, treesize of input 22 treesize of output 29 [2022-11-23 03:42:22,212 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:42:22,213 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 03:42:22,213 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-23 03:42:22,213 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1284513313] [2022-11-23 03:42:22,213 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1284513313] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 03:42:22,213 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 03:42:22,214 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-23 03:42:22,214 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [64216071] [2022-11-23 03:42:22,215 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 03:42:22,215 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 03:42:22,216 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-23 03:42:22,217 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 03:42:22,217 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 03:42:22,379 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 93 out of 197 [2022-11-23 03:42:22,380 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) [2022-11-23 03:42:22,380 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-23 03:42:22,380 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 93 of 197 [2022-11-23 03:42:22,380 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-23 03:42:22,587 INFO L130 PetriNetUnfolder]: 452/831 cut-off events. [2022-11-23 03:42:22,587 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-23 03:42:22,589 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1588 conditions, 831 events. 452/831 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 77. Compared 4458 event pairs, 165 based on Foata normal form. 0/666 useless extension candidates. Maximal degree in co-relation 1584. Up to 477 conditions per place. [2022-11-23 03:42:22,594 INFO L137 encePairwiseOnDemand]: 194/197 looper letters, 31 selfloop transitions, 2 changer transitions 0/46 dead transitions. [2022-11-23 03:42:22,594 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 46 transitions, 165 flow [2022-11-23 03:42:22,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 03:42:22,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-23 03:42:22,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 313 transitions. [2022-11-23 03:42:22,597 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5296108291032149 [2022-11-23 03:42:22,597 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 313 transitions. [2022-11-23 03:42:22,598 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 313 transitions. [2022-11-23 03:42:22,598 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-23 03:42:22,598 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 313 transitions. [2022-11-23 03:42:22,600 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) [2022-11-23 03:42:22,601 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 197.0) internal successors, (788), 4 states have internal predecessors, (788), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:42:22,602 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 197.0) internal successors, (788), 4 states have internal predecessors, (788), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:42:22,602 INFO L175 Difference]: Start difference. First operand has 40 places, 35 transitions, 77 flow. Second operand 3 states and 313 transitions. [2022-11-23 03:42:22,602 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 46 transitions, 165 flow [2022-11-23 03:42:22,604 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 46 transitions, 164 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-23 03:42:22,605 INFO L231 Difference]: Finished difference. Result has 40 places, 34 transitions, 78 flow [2022-11-23 03:42:22,605 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=197, 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} [2022-11-23 03:42:22,608 INFO L288 CegarLoopForPetriNet]: 43 programPoint places, -3 predicate places. [2022-11-23 03:42:22,608 INFO L495 AbstractCegarLoop]: Abstraction has has 40 places, 34 transitions, 78 flow [2022-11-23 03:42:22,609 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) [2022-11-23 03:42:22,609 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-23 03:42:22,609 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2022-11-23 03:42:22,628 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4b73716-b0ea-42b1-a498-e8ad1515bf1e/bin/uautomizer-QkZJyEgLgS/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 [2022-11-23 03:42:22,821 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4b73716-b0ea-42b1-a498-e8ad1515bf1e/bin/uautomizer-QkZJyEgLgS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 03:42:22,822 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_FREE === [ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 15 more)] === [2022-11-23 03:42:22,822 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:42:22,822 INFO L85 PathProgramCache]: Analyzing trace with hash 386592542, now seen corresponding path program 1 times [2022-11-23 03:42:22,822 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-23 03:42:22,823 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [746504875] [2022-11-23 03:42:22,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:42:22,823 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 03:42:22,823 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4b73716-b0ea-42b1-a498-e8ad1515bf1e/bin/uautomizer-QkZJyEgLgS/mathsat [2022-11-23 03:42:22,824 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4b73716-b0ea-42b1-a498-e8ad1515bf1e/bin/uautomizer-QkZJyEgLgS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-23 03:42:22,830 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4b73716-b0ea-42b1-a498-e8ad1515bf1e/bin/uautomizer-QkZJyEgLgS/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 [2022-11-23 03:42:22,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:42:22,910 INFO L263 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-23 03:42:22,910 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 03:42:22,929 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:42:22,929 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 03:42:22,930 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-23 03:42:22,930 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [746504875] [2022-11-23 03:42:22,930 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [746504875] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 03:42:22,930 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 03:42:22,930 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-23 03:42:22,931 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [81014793] [2022-11-23 03:42:22,931 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 03:42:22,931 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 03:42:22,931 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-23 03:42:22,932 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 03:42:22,932 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 03:42:22,945 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 95 out of 197 [2022-11-23 03:42:22,946 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) [2022-11-23 03:42:22,946 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-23 03:42:22,946 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 95 of 197 [2022-11-23 03:42:22,946 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-23 03:42:23,051 INFO L130 PetriNetUnfolder]: 306/611 cut-off events. [2022-11-23 03:42:23,051 INFO L131 PetriNetUnfolder]: For 40/40 co-relation queries the response was YES. [2022-11-23 03:42:23,053 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1173 conditions, 611 events. 306/611 cut-off events. For 40/40 co-relation queries the response was YES. Maximal size of possible extension queue 47. Compared 3198 event pairs, 253 based on Foata normal form. 42/540 useless extension candidates. Maximal degree in co-relation 1169. Up to 458 conditions per place. [2022-11-23 03:42:23,055 INFO L137 encePairwiseOnDemand]: 195/197 looper letters, 18 selfloop transitions, 1 changer transitions 0/33 dead transitions. [2022-11-23 03:42:23,056 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 33 transitions, 114 flow [2022-11-23 03:42:23,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 03:42:23,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-23 03:42:23,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 305 transitions. [2022-11-23 03:42:23,057 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5160744500846024 [2022-11-23 03:42:23,058 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 305 transitions. [2022-11-23 03:42:23,058 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 305 transitions. [2022-11-23 03:42:23,058 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-23 03:42:23,058 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 305 transitions. [2022-11-23 03:42:23,059 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) [2022-11-23 03:42:23,060 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 197.0) internal successors, (788), 4 states have internal predecessors, (788), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:42:23,061 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 197.0) internal successors, (788), 4 states have internal predecessors, (788), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:42:23,061 INFO L175 Difference]: Start difference. First operand has 40 places, 34 transitions, 78 flow. Second operand 3 states and 305 transitions. [2022-11-23 03:42:23,061 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 33 transitions, 114 flow [2022-11-23 03:42:23,062 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 33 transitions, 110 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-23 03:42:23,062 INFO L231 Difference]: Finished difference. Result has 39 places, 33 transitions, 74 flow [2022-11-23 03:42:23,063 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=197, 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} [2022-11-23 03:42:23,063 INFO L288 CegarLoopForPetriNet]: 43 programPoint places, -4 predicate places. [2022-11-23 03:42:23,064 INFO L495 AbstractCegarLoop]: Abstraction has has 39 places, 33 transitions, 74 flow [2022-11-23 03:42:23,065 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) [2022-11-23 03:42:23,065 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-23 03:42:23,066 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 03:42:23,082 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4b73716-b0ea-42b1-a498-e8ad1515bf1e/bin/uautomizer-QkZJyEgLgS/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)] Forceful destruction successful, exit code 0 [2022-11-23 03:42:23,277 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4b73716-b0ea-42b1-a498-e8ad1515bf1e/bin/uautomizer-QkZJyEgLgS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 03:42:23,278 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)] === [2022-11-23 03:42:23,278 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:42:23,278 INFO L85 PathProgramCache]: Analyzing trace with hash -2123069320, now seen corresponding path program 1 times [2022-11-23 03:42:23,278 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-23 03:42:23,285 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2117112819] [2022-11-23 03:42:23,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:42:23,286 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 03:42:23,286 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4b73716-b0ea-42b1-a498-e8ad1515bf1e/bin/uautomizer-QkZJyEgLgS/mathsat [2022-11-23 03:42:23,287 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4b73716-b0ea-42b1-a498-e8ad1515bf1e/bin/uautomizer-QkZJyEgLgS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-23 03:42:23,319 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4b73716-b0ea-42b1-a498-e8ad1515bf1e/bin/uautomizer-QkZJyEgLgS/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 [2022-11-23 03:42:23,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:42:23,436 INFO L263 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 17 conjunts are in the unsatisfiable core [2022-11-23 03:42:23,440 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 03:42:23,738 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:42:23,738 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 03:42:23,738 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-23 03:42:23,738 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2117112819] [2022-11-23 03:42:23,739 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2117112819] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 03:42:23,739 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 03:42:23,739 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-23 03:42:23,739 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1921223969] [2022-11-23 03:42:23,739 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 03:42:23,739 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-23 03:42:23,739 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-23 03:42:23,740 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-23 03:42:23,740 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-23 03:42:25,927 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] [2022-11-23 03:42:28,113 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-23 03:42:30,130 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-23 03:42:32,253 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-23 03:42:34,277 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-23 03:42:36,316 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-23 03:42:38,324 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-23 03:42:40,353 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-23 03:42:42,507 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-23 03:42:44,566 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-23 03:42:44,566 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 197 [2022-11-23 03:42:44,567 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 39 places, 33 transitions, 74 flow. Second operand has 6 states, 6 states have (on average 75.33333333333333) internal successors, (452), 6 states have internal predecessors, (452), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:42:44,567 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-23 03:42:44,567 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 197 [2022-11-23 03:42:44,567 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-23 03:42:47,082 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-23 03:42:48,248 INFO L130 PetriNetUnfolder]: 432/732 cut-off events. [2022-11-23 03:42:48,248 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-23 03:42:48,250 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1482 conditions, 732 events. 432/732 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 67. Compared 3569 event pairs, 62 based on Foata normal form. 0/641 useless extension candidates. Maximal degree in co-relation 1478. Up to 280 conditions per place. [2022-11-23 03:42:48,254 INFO L137 encePairwiseOnDemand]: 192/197 looper letters, 56 selfloop transitions, 4 changer transitions 0/71 dead transitions. [2022-11-23 03:42:48,254 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 71 transitions, 270 flow [2022-11-23 03:42:48,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-23 03:42:48,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-23 03:42:48,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 505 transitions. [2022-11-23 03:42:48,257 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4272419627749577 [2022-11-23 03:42:48,257 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 505 transitions. [2022-11-23 03:42:48,257 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 505 transitions. [2022-11-23 03:42:48,258 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-23 03:42:48,258 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 505 transitions. [2022-11-23 03:42:48,260 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 84.16666666666667) internal successors, (505), 6 states have internal predecessors, (505), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:42:48,262 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 197.0) internal successors, (1379), 7 states have internal predecessors, (1379), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:42:48,263 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 197.0) internal successors, (1379), 7 states have internal predecessors, (1379), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:42:48,264 INFO L175 Difference]: Start difference. First operand has 39 places, 33 transitions, 74 flow. Second operand 6 states and 505 transitions. [2022-11-23 03:42:48,264 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 71 transitions, 270 flow [2022-11-23 03:42:48,265 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 71 transitions, 269 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-23 03:42:48,267 INFO L231 Difference]: Finished difference. Result has 42 places, 32 transitions, 79 flow [2022-11-23 03:42:48,267 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=197, 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} [2022-11-23 03:42:48,271 INFO L288 CegarLoopForPetriNet]: 43 programPoint places, -1 predicate places. [2022-11-23 03:42:48,271 INFO L495 AbstractCegarLoop]: Abstraction has has 42 places, 32 transitions, 79 flow [2022-11-23 03:42:48,271 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 75.33333333333333) internal successors, (452), 6 states have internal predecessors, (452), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:42:48,271 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-23 03:42:48,272 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 03:42:48,289 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4b73716-b0ea-42b1-a498-e8ad1515bf1e/bin/uautomizer-QkZJyEgLgS/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)] Forceful destruction successful, exit code 0 [2022-11-23 03:42:48,485 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4b73716-b0ea-42b1-a498-e8ad1515bf1e/bin/uautomizer-QkZJyEgLgS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 03:42:48,486 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting t1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 15 more)] === [2022-11-23 03:42:48,486 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:42:48,486 INFO L85 PathProgramCache]: Analyzing trace with hash -1219074087, now seen corresponding path program 1 times [2022-11-23 03:42:48,486 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-23 03:42:48,487 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [642007238] [2022-11-23 03:42:48,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:42:48,487 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 03:42:48,487 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4b73716-b0ea-42b1-a498-e8ad1515bf1e/bin/uautomizer-QkZJyEgLgS/mathsat [2022-11-23 03:42:48,494 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4b73716-b0ea-42b1-a498-e8ad1515bf1e/bin/uautomizer-QkZJyEgLgS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-23 03:42:48,495 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4b73716-b0ea-42b1-a498-e8ad1515bf1e/bin/uautomizer-QkZJyEgLgS/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 [2022-11-23 03:42:48,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 03:42:48,601 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-23 03:42:48,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 03:42:48,669 INFO L130 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2022-11-23 03:42:48,670 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-23 03:42:48,671 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location t1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (17 of 18 remaining) [2022-11-23 03:42:48,673 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK (16 of 18 remaining) [2022-11-23 03:42:48,673 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (15 of 18 remaining) [2022-11-23 03:42:48,674 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (14 of 18 remaining) [2022-11-23 03:42:48,674 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (13 of 18 remaining) [2022-11-23 03:42:48,674 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (12 of 18 remaining) [2022-11-23 03:42:48,674 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_FREE (11 of 18 remaining) [2022-11-23 03:42:48,675 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_FREE (10 of 18 remaining) [2022-11-23 03:42:48,675 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_FREE (9 of 18 remaining) [2022-11-23 03:42:48,675 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 18 remaining) [2022-11-23 03:42:48,675 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (7 of 18 remaining) [2022-11-23 03:42:48,675 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 18 remaining) [2022-11-23 03:42:48,676 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 18 remaining) [2022-11-23 03:42:48,676 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 18 remaining) [2022-11-23 03:42:48,676 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 18 remaining) [2022-11-23 03:42:48,676 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 18 remaining) [2022-11-23 03:42:48,676 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (1 of 18 remaining) [2022-11-23 03:42:48,677 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (0 of 18 remaining) [2022-11-23 03:42:48,696 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4b73716-b0ea-42b1-a498-e8ad1515bf1e/bin/uautomizer-QkZJyEgLgS/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)] Forceful destruction successful, exit code 0 [2022-11-23 03:42:48,877 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4b73716-b0ea-42b1-a498-e8ad1515bf1e/bin/uautomizer-QkZJyEgLgS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 03:42:48,878 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 03:42:48,883 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-23 03:42:48,883 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-23 03:42:48,926 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 03:42:48 BasicIcfg [2022-11-23 03:42:48,926 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-23 03:42:48,927 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-23 03:42:48,927 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-23 03:42:48,927 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-23 03:42:48,928 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:42:05" (3/4) ... [2022-11-23 03:42:48,929 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-11-23 03:42:49,016 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4b73716-b0ea-42b1-a498-e8ad1515bf1e/bin/uautomizer-QkZJyEgLgS/witness.graphml [2022-11-23 03:42:49,016 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-23 03:42:49,017 INFO L158 Benchmark]: Toolchain (without parser) took 44592.18ms. Allocated memory was 69.2MB in the beginning and 113.2MB in the end (delta: 44.0MB). Free memory was 44.7MB in the beginning and 39.4MB in the end (delta: 5.3MB). Peak memory consumption was 49.5MB. Max. memory is 16.1GB. [2022-11-23 03:42:49,017 INFO L158 Benchmark]: CDTParser took 0.57ms. Allocated memory is still 69.2MB. Free memory is still 46.6MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-23 03:42:49,017 INFO L158 Benchmark]: CACSL2BoogieTranslator took 679.80ms. Allocated memory was 69.2MB in the beginning and 94.4MB in the end (delta: 25.2MB). Free memory was 44.5MB in the beginning and 52.9MB in the end (delta: -8.4MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-11-23 03:42:49,018 INFO L158 Benchmark]: Boogie Procedure Inliner took 49.30ms. Allocated memory is still 94.4MB. Free memory was 52.5MB in the beginning and 50.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-23 03:42:49,018 INFO L158 Benchmark]: Boogie Preprocessor took 34.23ms. Allocated memory is still 94.4MB. Free memory was 50.4MB in the beginning and 48.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-23 03:42:49,019 INFO L158 Benchmark]: RCFGBuilder took 704.47ms. Allocated memory is still 94.4MB. Free memory was 48.3MB in the beginning and 60.2MB in the end (delta: -11.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-23 03:42:49,019 INFO L158 Benchmark]: TraceAbstraction took 43028.44ms. Allocated memory was 94.4MB in the beginning and 113.2MB in the end (delta: 18.9MB). Free memory was 59.3MB in the beginning and 43.6MB in the end (delta: 15.7MB). Peak memory consumption was 33.2MB. Max. memory is 16.1GB. [2022-11-23 03:42:49,020 INFO L158 Benchmark]: Witness Printer took 89.40ms. Allocated memory is still 113.2MB. Free memory was 43.6MB in the beginning and 39.4MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-23 03:42:49,023 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.57ms. Allocated memory is still 69.2MB. Free memory is still 46.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 679.80ms. Allocated memory was 69.2MB in the beginning and 94.4MB in the end (delta: 25.2MB). Free memory was 44.5MB in the beginning and 52.9MB in the end (delta: -8.4MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 49.30ms. Allocated memory is still 94.4MB. Free memory was 52.5MB in the beginning and 50.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 34.23ms. Allocated memory is still 94.4MB. Free memory was 50.4MB in the beginning and 48.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 704.47ms. Allocated memory is still 94.4MB. Free memory was 48.3MB in the beginning and 60.2MB in the end (delta: -11.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 43028.44ms. Allocated memory was 94.4MB in the beginning and 113.2MB in the end (delta: 18.9MB). Free memory was 59.3MB in the beginning and 43.6MB in the end (delta: 15.7MB). Peak memory consumption was 33.2MB. Max. memory is 16.1GB. * Witness Printer took 89.40ms. Allocated memory is still 113.2MB. Free memory was 43.6MB in the beginning and 39.4MB 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.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 12.1s, 101 PlacesBefore, 43 PlacesAfterwards, 103 TransitionsBefore, 43 TransitionsAfterwards, 2546 CoEnabledTransitionPairs, 6 FixpointIterations, 47 TrivialSequentialCompositions, 37 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 6 ConcurrentYvCompositions, 2 ChoiceCompositions, 92 TotalNumberOfCompositions, 6894 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2573, independent: 2364, independent conditional: 0, independent unconditional: 2364, dependent: 209, dependent conditional: 0, dependent unconditional: 209, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1292, independent: 1251, independent conditional: 0, independent unconditional: 1251, dependent: 41, dependent conditional: 0, dependent unconditional: 41, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1292, independent: 1239, independent conditional: 0, independent unconditional: 1239, dependent: 53, dependent conditional: 0, dependent unconditional: 53, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 53, independent: 12, independent conditional: 0, independent unconditional: 12, dependent: 41, dependent conditional: 0, dependent unconditional: 41, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 431, independent: 58, independent conditional: 0, independent unconditional: 58, dependent: 373, dependent conditional: 0, dependent unconditional: 373, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 2573, independent: 1113, independent conditional: 0, independent unconditional: 1113, dependent: 168, dependent conditional: 0, dependent unconditional: 168, unknown: 1292, unknown conditional: 0, unknown unconditional: 1292] , Statistics on independence cache: Total cache size (in pairs): 176, Positive cache size: 151, Positive conditional cache size: 0, Positive unconditional cache size: 151, Negative cache size: 25, Negative conditional cache size: 0, Negative unconditional cache size: 25, 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 [#in~arg={2:0}, #in~argv={9:6}, a={2:0}, argc=5, 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, unknown-#in~argc-unknown=5, x=0, y=0, z=0] [L1042] 1 x = 1 VAL [#in~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 [#in~arg={2:0}, a={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 [#in~arg={2:0}, a={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 [#in~arg={2:0}, a={2:0}, arg={2:0}, i=1, ind=0, j=2, size=2, x=1, y=1, z=0] [L1048] 1 ++ind VAL [#in~arg={2:0}, a={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: 42.8s, OverallIterations: 9, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 26.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 12.2s, HoareTripleCheckerStatistics: 15 mSolverCounterUnknown, 426 SdHoareTripleChecker+Valid, 25.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 246 mSDsluCounter, 65 SdHoareTripleChecker+Invalid, 25.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 24 mSDsCounter, 25 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 717 IncrementalHoareTripleChecker+Invalid, 757 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 25 mSolverCounterUnsat, 41 mSDtfsCounter, 717 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 24 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s 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, 0.3s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 41 NumberOfCodeBlocks, 41 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 24 ConstructedInterpolants, 11 QuantifiedInterpolants, 428 SizeOfPredicates, 8 NumberOfNonLiveVariables, 444 ConjunctsInSsa, 40 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! [2022-11-23 03:42:49,071 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4b73716-b0ea-42b1-a498-e8ad1515bf1e/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, 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)