./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 8393723b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53d82a7e-fd3c-4b02-8326-1e2cfa663529/bin/uautomizer-TMbwUNV5ro/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53d82a7e-fd3c-4b02-8326-1e2cfa663529/bin/uautomizer-TMbwUNV5ro/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53d82a7e-fd3c-4b02-8326-1e2cfa663529/bin/uautomizer-TMbwUNV5ro/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53d82a7e-fd3c-4b02-8326-1e2cfa663529/bin/uautomizer-TMbwUNV5ro/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/pthread-memsafety/fillarray1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53d82a7e-fd3c-4b02-8326-1e2cfa663529/bin/uautomizer-TMbwUNV5ro/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53d82a7e-fd3c-4b02-8326-1e2cfa663529/bin/uautomizer-TMbwUNV5ro --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-8393723 [2022-11-18 20:22:56,272 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-18 20:22:56,275 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-18 20:22:56,312 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-18 20:22:56,313 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-18 20:22:56,314 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-18 20:22:56,315 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-18 20:22:56,317 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-18 20:22:56,319 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-18 20:22:56,320 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-18 20:22:56,321 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-18 20:22:56,322 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-18 20:22:56,322 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-18 20:22:56,323 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-18 20:22:56,325 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-18 20:22:56,326 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-18 20:22:56,327 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-18 20:22:56,328 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-18 20:22:56,330 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-18 20:22:56,332 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-18 20:22:56,333 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-18 20:22:56,334 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-18 20:22:56,336 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-18 20:22:56,337 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-18 20:22:56,340 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-18 20:22:56,341 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-18 20:22:56,341 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-18 20:22:56,342 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-18 20:22:56,343 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-18 20:22:56,344 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-18 20:22:56,345 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-18 20:22:56,346 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-18 20:22:56,346 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-18 20:22:56,347 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-18 20:22:56,348 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-18 20:22:56,349 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-18 20:22:56,350 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-18 20:22:56,350 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-18 20:22:56,350 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-18 20:22:56,351 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-18 20:22:56,352 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-18 20:22:56,358 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53d82a7e-fd3c-4b02-8326-1e2cfa663529/bin/uautomizer-TMbwUNV5ro/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2022-11-18 20:22:56,387 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-18 20:22:56,392 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-18 20:22:56,392 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-18 20:22:56,392 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-18 20:22:56,393 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-18 20:22:56,393 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-18 20:22:56,394 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-18 20:22:56,394 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-18 20:22:56,395 INFO L138 SettingsManager]: * Use SBE=true [2022-11-18 20:22:56,395 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-18 20:22:56,395 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-18 20:22:56,395 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-18 20:22:56,396 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-18 20:22:56,396 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-18 20:22:56,396 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-18 20:22:56,396 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-11-18 20:22:56,396 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-11-18 20:22:56,397 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-11-18 20:22:56,397 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-18 20:22:56,397 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-18 20:22:56,397 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-18 20:22:56,397 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-18 20:22:56,398 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-18 20:22:56,398 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-18 20:22:56,398 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-18 20:22:56,398 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 20:22:56,398 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-18 20:22:56,399 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-18 20:22:56,399 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-18 20:22:56,399 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-18 20:22:56,399 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53d82a7e-fd3c-4b02-8326-1e2cfa663529/bin/uautomizer-TMbwUNV5ro/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53d82a7e-fd3c-4b02-8326-1e2cfa663529/bin/uautomizer-TMbwUNV5ro Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0d955c319d131d508b8618ef571ba23da865842e29989ccda626762130a6dda2 [2022-11-18 20:22:56,660 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-18 20:22:56,698 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-18 20:22:56,701 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-18 20:22:56,702 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-18 20:22:56,703 INFO L275 PluginConnector]: CDTParser initialized [2022-11-18 20:22:56,705 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53d82a7e-fd3c-4b02-8326-1e2cfa663529/bin/uautomizer-TMbwUNV5ro/../../sv-benchmarks/c/pthread-memsafety/fillarray1.i [2022-11-18 20:22:56,792 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53d82a7e-fd3c-4b02-8326-1e2cfa663529/bin/uautomizer-TMbwUNV5ro/data/fb3c5d4bf/5b90b4a64683426184bec6b23878469b/FLAG22899e3c4 [2022-11-18 20:22:57,317 INFO L306 CDTParser]: Found 1 translation units. [2022-11-18 20:22:57,318 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53d82a7e-fd3c-4b02-8326-1e2cfa663529/sv-benchmarks/c/pthread-memsafety/fillarray1.i [2022-11-18 20:22:57,341 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53d82a7e-fd3c-4b02-8326-1e2cfa663529/bin/uautomizer-TMbwUNV5ro/data/fb3c5d4bf/5b90b4a64683426184bec6b23878469b/FLAG22899e3c4 [2022-11-18 20:22:57,609 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53d82a7e-fd3c-4b02-8326-1e2cfa663529/bin/uautomizer-TMbwUNV5ro/data/fb3c5d4bf/5b90b4a64683426184bec6b23878469b [2022-11-18 20:22:57,612 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-18 20:22:57,613 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-18 20:22:57,615 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-18 20:22:57,615 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-18 20:22:57,619 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-18 20:22:57,620 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 08:22:57" (1/1) ... [2022-11-18 20:22:57,621 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@749c6034 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:22:57, skipping insertion in model container [2022-11-18 20:22:57,621 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 08:22:57" (1/1) ... [2022-11-18 20:22:57,631 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-18 20:22:57,698 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-18 20:22:58,312 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 20:22:58,326 ERROR L326 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types of different sizes while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2022-11-18 20:22:58,327 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@79d2fd2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:22:58, skipping insertion in model container [2022-11-18 20:22:58,327 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-18 20:22:58,328 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2022-11-18 20:22:58,330 INFO L158 Benchmark]: Toolchain (without parser) took 715.94ms. Allocated memory is still 148.9MB. Free memory was 112.3MB in the beginning and 120.4MB in the end (delta: -8.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-18 20:22:58,332 INFO L158 Benchmark]: CDTParser took 0.38ms. Allocated memory is still 92.3MB. Free memory was 64.0MB in the beginning and 64.0MB in the end (delta: 30.6kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-18 20:22:58,335 INFO L158 Benchmark]: CACSL2BoogieTranslator took 712.39ms. Allocated memory is still 148.9MB. Free memory was 112.0MB in the beginning and 120.4MB in the end (delta: -8.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-18 20:22:58,337 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.38ms. Allocated memory is still 92.3MB. Free memory was 64.0MB in the beginning and 64.0MB in the end (delta: 30.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 712.39ms. Allocated memory is still 148.9MB. Free memory was 112.0MB in the beginning and 120.4MB in the end (delta: -8.4MB). Peak memory consumption was 10.5MB. 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-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53d82a7e-fd3c-4b02-8326-1e2cfa663529/bin/uautomizer-TMbwUNV5ro/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53d82a7e-fd3c-4b02-8326-1e2cfa663529/bin/uautomizer-TMbwUNV5ro/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53d82a7e-fd3c-4b02-8326-1e2cfa663529/bin/uautomizer-TMbwUNV5ro/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53d82a7e-fd3c-4b02-8326-1e2cfa663529/bin/uautomizer-TMbwUNV5ro/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/pthread-memsafety/fillarray1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53d82a7e-fd3c-4b02-8326-1e2cfa663529/bin/uautomizer-TMbwUNV5ro/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53d82a7e-fd3c-4b02-8326-1e2cfa663529/bin/uautomizer-TMbwUNV5ro --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-8393723 [2022-11-18 20:23:00,799 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-18 20:23:00,803 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-18 20:23:00,848 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-18 20:23:00,849 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-18 20:23:00,854 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-18 20:23:00,858 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-18 20:23:00,866 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-18 20:23:00,869 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-18 20:23:00,875 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-18 20:23:00,877 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-18 20:23:00,879 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-18 20:23:00,880 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-18 20:23:00,883 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-18 20:23:00,885 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-18 20:23:00,887 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-18 20:23:00,890 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-18 20:23:00,891 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-18 20:23:00,898 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-18 20:23:00,903 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-18 20:23:00,905 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-18 20:23:00,907 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-18 20:23:00,908 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-18 20:23:00,909 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-18 20:23:00,913 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-18 20:23:00,914 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-18 20:23:00,914 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-18 20:23:00,915 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-18 20:23:00,916 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-18 20:23:00,917 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-18 20:23:00,918 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-18 20:23:00,919 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-18 20:23:00,920 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-18 20:23:00,921 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-18 20:23:00,922 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-18 20:23:00,923 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-18 20:23:00,924 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-18 20:23:00,924 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-18 20:23:00,925 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-18 20:23:00,926 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-18 20:23:00,927 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-18 20:23:00,928 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53d82a7e-fd3c-4b02-8326-1e2cfa663529/bin/uautomizer-TMbwUNV5ro/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2022-11-18 20:23:00,991 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-18 20:23:00,992 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-18 20:23:00,993 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-18 20:23:00,994 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-18 20:23:00,995 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-18 20:23:00,995 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-18 20:23:00,997 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-18 20:23:00,997 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-18 20:23:00,997 INFO L138 SettingsManager]: * Use SBE=true [2022-11-18 20:23:00,998 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-18 20:23:00,999 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-18 20:23:00,999 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-18 20:23:00,999 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-18 20:23:01,000 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-18 20:23:01,001 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-18 20:23:01,001 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-11-18 20:23:01,001 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-11-18 20:23:01,001 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-11-18 20:23:01,002 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-18 20:23:01,002 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-18 20:23:01,002 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-18 20:23:01,002 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-18 20:23:01,003 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-18 20:23:01,003 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-18 20:23:01,003 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-18 20:23:01,003 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-18 20:23:01,004 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-18 20:23:01,004 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 20:23:01,004 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-18 20:23:01,005 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-18 20:23:01,005 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-11-18 20:23:01,005 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-18 20:23:01,006 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-18 20:23:01,006 INFO L138 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53d82a7e-fd3c-4b02-8326-1e2cfa663529/bin/uautomizer-TMbwUNV5ro/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53d82a7e-fd3c-4b02-8326-1e2cfa663529/bin/uautomizer-TMbwUNV5ro Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0d955c319d131d508b8618ef571ba23da865842e29989ccda626762130a6dda2 [2022-11-18 20:23:01,515 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-18 20:23:01,549 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-18 20:23:01,551 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-18 20:23:01,553 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-18 20:23:01,556 INFO L275 PluginConnector]: CDTParser initialized [2022-11-18 20:23:01,558 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53d82a7e-fd3c-4b02-8326-1e2cfa663529/bin/uautomizer-TMbwUNV5ro/../../sv-benchmarks/c/pthread-memsafety/fillarray1.i [2022-11-18 20:23:01,639 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53d82a7e-fd3c-4b02-8326-1e2cfa663529/bin/uautomizer-TMbwUNV5ro/data/431395e82/63bd8e75442c4b87a6db5aad76d4fed2/FLAG8a4f34949 [2022-11-18 20:23:02,329 INFO L306 CDTParser]: Found 1 translation units. [2022-11-18 20:23:02,330 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53d82a7e-fd3c-4b02-8326-1e2cfa663529/sv-benchmarks/c/pthread-memsafety/fillarray1.i [2022-11-18 20:23:02,348 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53d82a7e-fd3c-4b02-8326-1e2cfa663529/bin/uautomizer-TMbwUNV5ro/data/431395e82/63bd8e75442c4b87a6db5aad76d4fed2/FLAG8a4f34949 [2022-11-18 20:23:02,557 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53d82a7e-fd3c-4b02-8326-1e2cfa663529/bin/uautomizer-TMbwUNV5ro/data/431395e82/63bd8e75442c4b87a6db5aad76d4fed2 [2022-11-18 20:23:02,560 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-18 20:23:02,562 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-18 20:23:02,563 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-18 20:23:02,563 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-18 20:23:02,572 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-18 20:23:02,573 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 08:23:02" (1/1) ... [2022-11-18 20:23:02,574 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6bfd70bb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:23:02, skipping insertion in model container [2022-11-18 20:23:02,575 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 08:23:02" (1/1) ... [2022-11-18 20:23:02,582 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-18 20:23:02,651 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-18 20:23:03,355 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 20:23:03,368 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-11-18 20:23:03,388 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-18 20:23:03,448 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 20:23:03,464 INFO L203 MainTranslator]: Completed pre-run [2022-11-18 20:23:03,499 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 20:23:03,569 INFO L208 MainTranslator]: Completed translation [2022-11-18 20:23:03,570 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:23:03 WrapperNode [2022-11-18 20:23:03,570 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-18 20:23:03,571 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-18 20:23:03,572 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-18 20:23:03,572 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-18 20:23:03,579 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:23:03" (1/1) ... [2022-11-18 20:23:03,608 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:23:03" (1/1) ... [2022-11-18 20:23:03,658 INFO L138 Inliner]: procedures = 263, calls = 16, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 52 [2022-11-18 20:23:03,658 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-18 20:23:03,659 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-18 20:23:03,659 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-18 20:23:03,659 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-18 20:23:03,670 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:23:03" (1/1) ... [2022-11-18 20:23:03,670 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:23:03" (1/1) ... [2022-11-18 20:23:03,674 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:23:03" (1/1) ... [2022-11-18 20:23:03,674 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:23:03" (1/1) ... [2022-11-18 20:23:03,684 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:23:03" (1/1) ... [2022-11-18 20:23:03,689 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:23:03" (1/1) ... [2022-11-18 20:23:03,691 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:23:03" (1/1) ... [2022-11-18 20:23:03,693 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:23:03" (1/1) ... [2022-11-18 20:23:03,696 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-18 20:23:03,697 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-18 20:23:03,697 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-18 20:23:03,697 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-18 20:23:03,698 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:23:03" (1/1) ... [2022-11-18 20:23:03,705 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 20:23:03,719 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53d82a7e-fd3c-4b02-8326-1e2cfa663529/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:23:03,733 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53d82a7e-fd3c-4b02-8326-1e2cfa663529/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-18 20:23:03,764 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53d82a7e-fd3c-4b02-8326-1e2cfa663529/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-18 20:23:03,785 INFO L130 BoogieDeclarations]: Found specification of procedure t1 [2022-11-18 20:23:03,785 INFO L138 BoogieDeclarations]: Found implementation of procedure t1 [2022-11-18 20:23:03,786 INFO L130 BoogieDeclarations]: Found specification of procedure t2 [2022-11-18 20:23:03,786 INFO L138 BoogieDeclarations]: Found implementation of procedure t2 [2022-11-18 20:23:03,786 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-18 20:23:03,786 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-18 20:23:03,786 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-11-18 20:23:03,787 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-18 20:23:03,787 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-18 20:23:03,787 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-18 20:23:03,789 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-18 20:23:04,014 INFO L235 CfgBuilder]: Building ICFG [2022-11-18 20:23:04,017 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-18 20:23:04,450 INFO L276 CfgBuilder]: Performing block encoding [2022-11-18 20:23:04,459 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-18 20:23:04,459 INFO L300 CfgBuilder]: Removed 4 assume(true) statements. [2022-11-18 20:23:04,466 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:23:04 BoogieIcfgContainer [2022-11-18 20:23:04,467 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-18 20:23:04,469 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-18 20:23:04,470 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-18 20:23:04,475 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-18 20:23:04,475 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 08:23:02" (1/3) ... [2022-11-18 20:23:04,476 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@617cf35 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 08:23:04, skipping insertion in model container [2022-11-18 20:23:04,476 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:23:03" (2/3) ... [2022-11-18 20:23:04,477 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@617cf35 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 08:23:04, skipping insertion in model container [2022-11-18 20:23:04,477 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:23:04" (3/3) ... [2022-11-18 20:23:04,481 INFO L112 eAbstractionObserver]: Analyzing ICFG fillarray1.i [2022-11-18 20:23:04,507 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-18 20:23:04,508 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 12 error locations. [2022-11-18 20:23:04,508 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-18 20:23:04,644 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-18 20:23:04,686 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-18 20:23:04,705 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 103 places, 105 transitions, 220 flow [2022-11-18 20:23:04,708 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 103 places, 105 transitions, 220 flow [2022-11-18 20:23:04,711 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 103 places, 105 transitions, 220 flow [2022-11-18 20:23:04,782 INFO L130 PetriNetUnfolder]: 8/109 cut-off events. [2022-11-18 20:23:04,783 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-18 20:23:04,789 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. [2022-11-18 20:23:04,792 INFO L119 LiptonReduction]: Number of co-enabled transitions 2546 [2022-11-18 20:23:16,387 INFO L134 LiptonReduction]: Checked pairs total: 6968 [2022-11-18 20:23:16,387 INFO L136 LiptonReduction]: Total number of compositions: 89 [2022-11-18 20:23:16,396 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 45 places, 45 transitions, 100 flow [2022-11-18 20:23:16,498 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 1135 states, 1082 states have (on average 3.353049907578558) internal successors, (3628), 1134 states have internal predecessors, (3628), 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) [2022-11-18 20:23:16,519 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-18 20:23:16,526 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@34a860e6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 20:23:16,527 INFO L358 AbstractCegarLoop]: Starting to check reachability of 18 error locations. [2022-11-18 20:23:16,533 INFO L276 IsEmpty]: Start isEmpty. Operand has 1135 states, 1082 states have (on average 3.353049907578558) internal successors, (3628), 1134 states have internal predecessors, (3628), 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) [2022-11-18 20:23:16,538 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2 [2022-11-18 20:23:16,538 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:23:16,539 INFO L195 NwaCegarLoop]: trace histogram [1] [2022-11-18 20:23:16,540 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 15 more)] === [2022-11-18 20:23:16,545 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:23:16,548 INFO L85 PathProgramCache]: Analyzing trace with hash 404, now seen corresponding path program 1 times [2022-11-18 20:23:16,564 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 20:23:16,564 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [347006516] [2022-11-18 20:23:16,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:23:16,567 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 [2022-11-18 20:23:16,567 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53d82a7e-fd3c-4b02-8326-1e2cfa663529/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 20:23:16,576 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53d82a7e-fd3c-4b02-8326-1e2cfa663529/bin/uautomizer-TMbwUNV5ro/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) [2022-11-18 20:23:16,590 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53d82a7e-fd3c-4b02-8326-1e2cfa663529/bin/uautomizer-TMbwUNV5ro/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 [2022-11-18 20:23:16,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:23:16,662 INFO L263 TraceCheckSpWp]: Trace formula consists of 3 conjuncts, 1 conjunts are in the unsatisfiable core [2022-11-18 20:23:16,667 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:23:16,672 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:23:16,673 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 20:23:16,673 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 20:23:16,674 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [347006516] [2022-11-18 20:23:16,675 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [347006516] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:23:16,675 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:23:16,675 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-11-18 20:23:16,677 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1434617343] [2022-11-18 20:23:16,678 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:23:16,683 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-18 20:23:16,683 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 20:23:16,710 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-18 20:23:16,711 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-18 20:23:16,718 INFO L87 Difference]: Start difference. First operand has 1135 states, 1082 states have (on average 3.353049907578558) internal successors, (3628), 1134 states have internal predecessors, (3628), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:23:16,969 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:23:16,969 INFO L93 Difference]: Finished difference Result 1133 states and 3428 transitions. [2022-11-18 20:23:16,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 20:23:16,973 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 1 [2022-11-18 20:23:16,973 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:23:17,010 INFO L225 Difference]: With dead ends: 1133 [2022-11-18 20:23:17,011 INFO L226 Difference]: Without dead ends: 1133 [2022-11-18 20:23:17,012 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-18 20:23:17,015 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 14 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-18 20:23:17,017 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 14 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-18 20:23:17,042 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1133 states. [2022-11-18 20:23:17,165 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1133 to 1133. [2022-11-18 20:23:17,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1133 states, 1082 states have (on average 3.168207024029575) internal successors, (3428), 1132 states have internal predecessors, (3428), 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) [2022-11-18 20:23:17,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1133 states to 1133 states and 3428 transitions. [2022-11-18 20:23:17,193 INFO L78 Accepts]: Start accepts. Automaton has 1133 states and 3428 transitions. Word has length 1 [2022-11-18 20:23:17,193 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:23:17,194 INFO L495 AbstractCegarLoop]: Abstraction has 1133 states and 3428 transitions. [2022-11-18 20:23:17,194 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:23:17,194 INFO L276 IsEmpty]: Start isEmpty. Operand 1133 states and 3428 transitions. [2022-11-18 20:23:17,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2022-11-18 20:23:17,195 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:23:17,195 INFO L195 NwaCegarLoop]: trace histogram [1, 1] [2022-11-18 20:23:17,221 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53d82a7e-fd3c-4b02-8326-1e2cfa663529/bin/uautomizer-TMbwUNV5ro/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)] Ended with exit code 0 [2022-11-18 20:23:17,421 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53d82a7e-fd3c-4b02-8326-1e2cfa663529/bin/uautomizer-TMbwUNV5ro/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 [2022-11-18 20:23:17,422 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)] === [2022-11-18 20:23:17,422 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:23:17,423 INFO L85 PathProgramCache]: Analyzing trace with hash 12678, now seen corresponding path program 1 times [2022-11-18 20:23:17,423 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 20:23:17,424 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [573069466] [2022-11-18 20:23:17,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:23:17,424 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 [2022-11-18 20:23:17,424 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53d82a7e-fd3c-4b02-8326-1e2cfa663529/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 20:23:17,426 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53d82a7e-fd3c-4b02-8326-1e2cfa663529/bin/uautomizer-TMbwUNV5ro/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) [2022-11-18 20:23:17,429 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53d82a7e-fd3c-4b02-8326-1e2cfa663529/bin/uautomizer-TMbwUNV5ro/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 [2022-11-18 20:23:17,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:23:17,514 INFO L263 TraceCheckSpWp]: Trace formula consists of 23 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-18 20:23:17,515 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:23:17,543 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:23:17,546 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 20:23:17,547 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 20:23:17,547 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [573069466] [2022-11-18 20:23:17,547 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [573069466] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:23:17,547 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:23:17,553 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-18 20:23:17,554 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [596405841] [2022-11-18 20:23:17,556 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:23:17,558 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:23:17,563 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 20:23:17,564 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:23:17,566 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:23:17,567 INFO L87 Difference]: Start difference. First operand 1133 states and 3428 transitions. Second operand has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:23:17,778 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:23:17,779 INFO L93 Difference]: Finished difference Result 1132 states and 3427 transitions. [2022-11-18 20:23:17,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:23:17,780 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 2 [2022-11-18 20:23:17,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:23:17,791 INFO L225 Difference]: With dead ends: 1132 [2022-11-18 20:23:17,791 INFO L226 Difference]: Without dead ends: 1131 [2022-11-18 20:23:17,792 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:23:17,797 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 24 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 34 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-18 20:23:17,799 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 34 Invalid, 67 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-18 20:23:17,806 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1131 states. [2022-11-18 20:23:17,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1131 to 1131. [2022-11-18 20:23:17,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1131 states, 1081 states have (on average 3.169287696577243) internal successors, (3426), 1130 states have internal predecessors, (3426), 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) [2022-11-18 20:23:17,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1131 states to 1131 states and 3426 transitions. [2022-11-18 20:23:17,870 INFO L78 Accepts]: Start accepts. Automaton has 1131 states and 3426 transitions. Word has length 2 [2022-11-18 20:23:17,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:23:17,872 INFO L495 AbstractCegarLoop]: Abstraction has 1131 states and 3426 transitions. [2022-11-18 20:23:17,872 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:23:17,872 INFO L276 IsEmpty]: Start isEmpty. Operand 1131 states and 3426 transitions. [2022-11-18 20:23:17,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-11-18 20:23:17,873 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:23:17,874 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2022-11-18 20:23:17,895 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53d82a7e-fd3c-4b02-8326-1e2cfa663529/bin/uautomizer-TMbwUNV5ro/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 [2022-11-18 20:23:18,085 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53d82a7e-fd3c-4b02-8326-1e2cfa663529/bin/uautomizer-TMbwUNV5ro/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 [2022-11-18 20:23:18,086 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)] === [2022-11-18 20:23:18,086 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:23:18,087 INFO L85 PathProgramCache]: Analyzing trace with hash 399388, now seen corresponding path program 1 times [2022-11-18 20:23:18,087 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 20:23:18,088 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1555120807] [2022-11-18 20:23:18,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:23:18,088 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 [2022-11-18 20:23:18,088 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53d82a7e-fd3c-4b02-8326-1e2cfa663529/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 20:23:18,090 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53d82a7e-fd3c-4b02-8326-1e2cfa663529/bin/uautomizer-TMbwUNV5ro/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) [2022-11-18 20:23:18,096 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53d82a7e-fd3c-4b02-8326-1e2cfa663529/bin/uautomizer-TMbwUNV5ro/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 [2022-11-18 20:23:18,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:23:18,192 INFO L263 TraceCheckSpWp]: Trace formula consists of 57 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-18 20:23:18,194 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:23:18,325 INFO L321 Elim1Store]: treesize reduction 33, result has 40.0 percent of original size [2022-11-18 20:23:18,326 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 [2022-11-18 20:23:18,389 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:23:18,390 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 20:23:18,390 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 20:23:18,392 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1555120807] [2022-11-18 20:23:18,392 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1555120807] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:23:18,392 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:23:18,392 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-18 20:23:18,393 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1219114448] [2022-11-18 20:23:18,393 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:23:18,393 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:23:18,393 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 20:23:18,395 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:23:18,395 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:23:18,396 INFO L87 Difference]: Start difference. First operand 1131 states and 3426 transitions. Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:23:18,575 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:23:18,577 INFO L93 Difference]: Finished difference Result 1120 states and 3403 transitions. [2022-11-18 20:23:18,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:23:18,579 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2022-11-18 20:23:18,579 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:23:18,586 INFO L225 Difference]: With dead ends: 1120 [2022-11-18 20:23:18,586 INFO L226 Difference]: Without dead ends: 1120 [2022-11-18 20:23:18,588 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:23:18,591 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 32 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 23 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-18 20:23:18,596 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 23 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-18 20:23:18,601 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1120 states. [2022-11-18 20:23:18,636 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1120 to 1120. [2022-11-18 20:23:18,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1120 states, 1073 states have (on average 3.1714818266542406) internal successors, (3403), 1119 states have internal predecessors, (3403), 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) [2022-11-18 20:23:18,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1120 states to 1120 states and 3403 transitions. [2022-11-18 20:23:18,648 INFO L78 Accepts]: Start accepts. Automaton has 1120 states and 3403 transitions. Word has length 3 [2022-11-18 20:23:18,648 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:23:18,651 INFO L495 AbstractCegarLoop]: Abstraction has 1120 states and 3403 transitions. [2022-11-18 20:23:18,652 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:23:18,652 INFO L276 IsEmpty]: Start isEmpty. Operand 1120 states and 3403 transitions. [2022-11-18 20:23:18,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-11-18 20:23:18,652 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:23:18,653 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2022-11-18 20:23:18,665 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53d82a7e-fd3c-4b02-8326-1e2cfa663529/bin/uautomizer-TMbwUNV5ro/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 [2022-11-18 20:23:18,864 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53d82a7e-fd3c-4b02-8326-1e2cfa663529/bin/uautomizer-TMbwUNV5ro/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 [2022-11-18 20:23:18,864 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)] === [2022-11-18 20:23:18,865 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:23:18,865 INFO L85 PathProgramCache]: Analyzing trace with hash 399390, now seen corresponding path program 1 times [2022-11-18 20:23:18,865 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 20:23:18,866 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [691026544] [2022-11-18 20:23:18,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:23:18,866 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 [2022-11-18 20:23:18,866 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53d82a7e-fd3c-4b02-8326-1e2cfa663529/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 20:23:18,867 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53d82a7e-fd3c-4b02-8326-1e2cfa663529/bin/uautomizer-TMbwUNV5ro/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) [2022-11-18 20:23:18,874 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53d82a7e-fd3c-4b02-8326-1e2cfa663529/bin/uautomizer-TMbwUNV5ro/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 [2022-11-18 20:23:18,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:23:18,940 INFO L263 TraceCheckSpWp]: Trace formula consists of 57 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-18 20:23:18,941 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:23:19,011 INFO L321 Elim1Store]: treesize reduction 39, result has 40.0 percent of original size [2022-11-18 20:23:19,012 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 [2022-11-18 20:23:19,027 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:23:19,028 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 20:23:19,028 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 20:23:19,028 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [691026544] [2022-11-18 20:23:19,029 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [691026544] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:23:19,029 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:23:19,029 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-18 20:23:19,029 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [733034649] [2022-11-18 20:23:19,029 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:23:19,030 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:23:19,030 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 20:23:19,031 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:23:19,031 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:23:19,031 INFO L87 Difference]: Start difference. First operand 1120 states and 3403 transitions. Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:23:19,220 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:23:19,220 INFO L93 Difference]: Finished difference Result 1109 states and 3380 transitions. [2022-11-18 20:23:19,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:23:19,221 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2022-11-18 20:23:19,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:23:19,229 INFO L225 Difference]: With dead ends: 1109 [2022-11-18 20:23:19,229 INFO L226 Difference]: Without dead ends: 1109 [2022-11-18 20:23:19,231 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:23:19,236 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 29 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 22 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-18 20:23:19,237 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 22 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-18 20:23:19,241 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1109 states. [2022-11-18 20:23:19,269 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1109 to 1109. [2022-11-18 20:23:19,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1109 states, 1065 states have (on average 3.1737089201877935) internal successors, (3380), 1108 states have internal predecessors, (3380), 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) [2022-11-18 20:23:19,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1109 states to 1109 states and 3380 transitions. [2022-11-18 20:23:19,300 INFO L78 Accepts]: Start accepts. Automaton has 1109 states and 3380 transitions. Word has length 3 [2022-11-18 20:23:19,300 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:23:19,300 INFO L495 AbstractCegarLoop]: Abstraction has 1109 states and 3380 transitions. [2022-11-18 20:23:19,300 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:23:19,303 INFO L276 IsEmpty]: Start isEmpty. Operand 1109 states and 3380 transitions. [2022-11-18 20:23:19,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-18 20:23:19,304 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:23:19,304 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-18 20:23:19,316 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53d82a7e-fd3c-4b02-8326-1e2cfa663529/bin/uautomizer-TMbwUNV5ro/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 [2022-11-18 20:23:19,516 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53d82a7e-fd3c-4b02-8326-1e2cfa663529/bin/uautomizer-TMbwUNV5ro/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 [2022-11-18 20:23:19,516 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_FREE === [ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 15 more)] === [2022-11-18 20:23:19,517 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:23:19,517 INFO L85 PathProgramCache]: Analyzing trace with hash 383821976, now seen corresponding path program 1 times [2022-11-18 20:23:19,517 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 20:23:19,518 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1753737944] [2022-11-18 20:23:19,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:23:19,518 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 [2022-11-18 20:23:19,518 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53d82a7e-fd3c-4b02-8326-1e2cfa663529/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 20:23:19,519 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53d82a7e-fd3c-4b02-8326-1e2cfa663529/bin/uautomizer-TMbwUNV5ro/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) [2022-11-18 20:23:19,540 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53d82a7e-fd3c-4b02-8326-1e2cfa663529/bin/uautomizer-TMbwUNV5ro/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 [2022-11-18 20:23:19,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:23:19,622 INFO L263 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-18 20:23:19,623 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:23:19,640 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:23:19,640 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 20:23:19,641 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 20:23:19,641 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1753737944] [2022-11-18 20:23:19,641 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1753737944] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:23:19,641 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:23:19,642 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-18 20:23:19,642 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1849593558] [2022-11-18 20:23:19,642 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:23:19,642 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:23:19,643 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 20:23:19,643 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:23:19,643 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:23:19,644 INFO L87 Difference]: Start difference. First operand 1109 states and 3380 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 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) [2022-11-18 20:23:19,734 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:23:19,735 INFO L93 Difference]: Finished difference Result 988 states and 2995 transitions. [2022-11-18 20:23:19,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:23:19,736 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2022-11-18 20:23:19,736 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:23:19,744 INFO L225 Difference]: With dead ends: 988 [2022-11-18 20:23:19,744 INFO L226 Difference]: Without dead ends: 988 [2022-11-18 20:23:19,745 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:23:19,746 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 31 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 14 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 20:23:19,746 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 14 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 20:23:19,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 988 states. [2022-11-18 20:23:19,778 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 988 to 988. [2022-11-18 20:23:19,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 988 states, 953 states have (on average 3.142707240293809) internal successors, (2995), 987 states have internal predecessors, (2995), 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) [2022-11-18 20:23:19,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 988 states to 988 states and 2995 transitions. [2022-11-18 20:23:19,787 INFO L78 Accepts]: Start accepts. Automaton has 988 states and 2995 transitions. Word has length 5 [2022-11-18 20:23:19,788 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:23:19,788 INFO L495 AbstractCegarLoop]: Abstraction has 988 states and 2995 transitions. [2022-11-18 20:23:19,789 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 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) [2022-11-18 20:23:19,789 INFO L276 IsEmpty]: Start isEmpty. Operand 988 states and 2995 transitions. [2022-11-18 20:23:19,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-18 20:23:19,789 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:23:19,790 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-18 20:23:19,807 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53d82a7e-fd3c-4b02-8326-1e2cfa663529/bin/uautomizer-TMbwUNV5ro/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 [2022-11-18 20:23:20,001 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53d82a7e-fd3c-4b02-8326-1e2cfa663529/bin/uautomizer-TMbwUNV5ro/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 [2022-11-18 20:23:20,002 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_FREE === [ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 15 more)] === [2022-11-18 20:23:20,002 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:23:20,002 INFO L85 PathProgramCache]: Analyzing trace with hash 383821978, now seen corresponding path program 1 times [2022-11-18 20:23:20,003 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 20:23:20,003 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1241286064] [2022-11-18 20:23:20,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:23:20,003 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 20:23:20,003 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53d82a7e-fd3c-4b02-8326-1e2cfa663529/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 20:23:20,004 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53d82a7e-fd3c-4b02-8326-1e2cfa663529/bin/uautomizer-TMbwUNV5ro/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) [2022-11-18 20:23:20,005 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53d82a7e-fd3c-4b02-8326-1e2cfa663529/bin/uautomizer-TMbwUNV5ro/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 [2022-11-18 20:23:20,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:23:20,119 INFO L263 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-18 20:23:20,120 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:23:20,143 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:23:20,144 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 20:23:20,144 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 20:23:20,145 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1241286064] [2022-11-18 20:23:20,145 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1241286064] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:23:20,145 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:23:20,145 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-18 20:23:20,146 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [941876397] [2022-11-18 20:23:20,146 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:23:20,146 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:23:20,146 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 20:23:20,148 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:23:20,149 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:23:20,149 INFO L87 Difference]: Start difference. First operand 988 states and 2995 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 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) [2022-11-18 20:23:20,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:23:20,232 INFO L93 Difference]: Finished difference Result 867 states and 2610 transitions. [2022-11-18 20:23:20,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:23:20,234 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2022-11-18 20:23:20,234 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:23:20,241 INFO L225 Difference]: With dead ends: 867 [2022-11-18 20:23:20,241 INFO L226 Difference]: Without dead ends: 867 [2022-11-18 20:23:20,242 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:23:20,244 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 30 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 14 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 20:23:20,245 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 14 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 20:23:20,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 867 states. [2022-11-18 20:23:20,272 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 867 to 867. [2022-11-18 20:23:20,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 867 states, 841 states have (on average 3.103448275862069) internal successors, (2610), 866 states have internal predecessors, (2610), 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) [2022-11-18 20:23:20,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 867 states to 867 states and 2610 transitions. [2022-11-18 20:23:20,313 INFO L78 Accepts]: Start accepts. Automaton has 867 states and 2610 transitions. Word has length 5 [2022-11-18 20:23:20,313 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:23:20,313 INFO L495 AbstractCegarLoop]: Abstraction has 867 states and 2610 transitions. [2022-11-18 20:23:20,314 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 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) [2022-11-18 20:23:20,314 INFO L276 IsEmpty]: Start isEmpty. Operand 867 states and 2610 transitions. [2022-11-18 20:23:20,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-18 20:23:20,314 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:23:20,315 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-18 20:23:20,328 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53d82a7e-fd3c-4b02-8326-1e2cfa663529/bin/uautomizer-TMbwUNV5ro/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 [2022-11-18 20:23:20,524 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53d82a7e-fd3c-4b02-8326-1e2cfa663529/bin/uautomizer-TMbwUNV5ro/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 [2022-11-18 20:23:20,525 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_FREE === [ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 15 more)] === [2022-11-18 20:23:20,525 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:23:20,525 INFO L85 PathProgramCache]: Analyzing trace with hash 383821999, now seen corresponding path program 1 times [2022-11-18 20:23:20,525 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 20:23:20,525 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1967353441] [2022-11-18 20:23:20,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:23:20,526 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 [2022-11-18 20:23:20,526 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53d82a7e-fd3c-4b02-8326-1e2cfa663529/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 20:23:20,527 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53d82a7e-fd3c-4b02-8326-1e2cfa663529/bin/uautomizer-TMbwUNV5ro/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) [2022-11-18 20:23:20,542 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53d82a7e-fd3c-4b02-8326-1e2cfa663529/bin/uautomizer-TMbwUNV5ro/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 [2022-11-18 20:23:20,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:23:20,653 INFO L263 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-18 20:23:20,655 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:23:20,721 INFO L321 Elim1Store]: treesize reduction 46, result has 29.2 percent of original size [2022-11-18 20:23:20,722 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 3 case distinctions, treesize of input 22 treesize of output 33 [2022-11-18 20:23:20,801 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:23:20,801 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 20:23:20,802 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 20:23:20,802 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1967353441] [2022-11-18 20:23:20,804 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1967353441] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:23:20,804 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:23:20,804 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-18 20:23:20,805 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [578409691] [2022-11-18 20:23:20,805 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:23:20,805 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:23:20,806 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 20:23:20,806 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:23:20,806 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:23:20,807 INFO L87 Difference]: Start difference. First operand 867 states and 2610 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 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) [2022-11-18 20:23:20,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:23:20,943 INFO L93 Difference]: Finished difference Result 746 states and 2225 transitions. [2022-11-18 20:23:20,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:23:20,943 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2022-11-18 20:23:20,944 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:23:20,949 INFO L225 Difference]: With dead ends: 746 [2022-11-18 20:23:20,949 INFO L226 Difference]: Without dead ends: 746 [2022-11-18 20:23:20,949 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:23:20,950 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 24 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 22 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 20:23:20,951 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 22 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 20:23:20,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 746 states. [2022-11-18 20:23:20,975 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 746 to 746. [2022-11-18 20:23:20,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 746 states, 729 states have (on average 3.0521262002743486) internal successors, (2225), 745 states have internal predecessors, (2225), 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) [2022-11-18 20:23:20,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 746 states to 746 states and 2225 transitions. [2022-11-18 20:23:20,982 INFO L78 Accepts]: Start accepts. Automaton has 746 states and 2225 transitions. Word has length 5 [2022-11-18 20:23:20,982 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:23:20,983 INFO L495 AbstractCegarLoop]: Abstraction has 746 states and 2225 transitions. [2022-11-18 20:23:20,983 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 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) [2022-11-18 20:23:20,983 INFO L276 IsEmpty]: Start isEmpty. Operand 746 states and 2225 transitions. [2022-11-18 20:23:20,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-18 20:23:20,985 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:23:20,985 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:23:21,008 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53d82a7e-fd3c-4b02-8326-1e2cfa663529/bin/uautomizer-TMbwUNV5ro/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 [2022-11-18 20:23:21,198 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53d82a7e-fd3c-4b02-8326-1e2cfa663529/bin/uautomizer-TMbwUNV5ro/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 [2022-11-18 20:23:21,198 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)] === [2022-11-18 20:23:21,199 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:23:21,199 INFO L85 PathProgramCache]: Analyzing trace with hash 1238404631, now seen corresponding path program 1 times [2022-11-18 20:23:21,199 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 20:23:21,199 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [424593759] [2022-11-18 20:23:21,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:23:21,199 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 [2022-11-18 20:23:21,200 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53d82a7e-fd3c-4b02-8326-1e2cfa663529/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 20:23:21,201 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53d82a7e-fd3c-4b02-8326-1e2cfa663529/bin/uautomizer-TMbwUNV5ro/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) [2022-11-18 20:23:21,205 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53d82a7e-fd3c-4b02-8326-1e2cfa663529/bin/uautomizer-TMbwUNV5ro/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 [2022-11-18 20:23:21,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:23:21,313 INFO L263 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 17 conjunts are in the unsatisfiable core [2022-11-18 20:23:21,316 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:23:21,689 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:23:21,689 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 20:23:21,690 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 20:23:21,690 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [424593759] [2022-11-18 20:23:21,690 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [424593759] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:23:21,690 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:23:21,690 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-18 20:23:21,690 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [444592566] [2022-11-18 20:23:21,690 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:23:21,691 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 20:23:21,691 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 20:23:21,691 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 20:23:21,691 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-18 20:23:21,692 INFO L87 Difference]: Start difference. First operand 746 states and 2225 transitions. Second operand has 6 states, 5 states have (on average 1.6) internal successors, (8), 5 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:23:21,739 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:23:21,739 INFO L93 Difference]: Finished difference Result 745 states and 2222 transitions. [2022-11-18 20:23:21,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 20:23:21,740 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 1.6) internal successors, (8), 5 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2022-11-18 20:23:21,740 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:23:21,745 INFO L225 Difference]: With dead ends: 745 [2022-11-18 20:23:21,746 INFO L226 Difference]: Without dead ends: 745 [2022-11-18 20:23:21,746 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-18 20:23:21,747 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 0 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 53 SdHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 65 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 20:23:21,747 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 53 Invalid, 76 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 65 Unchecked, 0.0s Time] [2022-11-18 20:23:21,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 745 states. [2022-11-18 20:23:21,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 745 to 745. [2022-11-18 20:23:21,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 745 states, 728 states have (on average 3.052197802197802) internal successors, (2222), 744 states have internal predecessors, (2222), 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) [2022-11-18 20:23:21,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 745 states to 745 states and 2222 transitions. [2022-11-18 20:23:21,773 INFO L78 Accepts]: Start accepts. Automaton has 745 states and 2222 transitions. Word has length 8 [2022-11-18 20:23:21,773 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:23:21,773 INFO L495 AbstractCegarLoop]: Abstraction has 745 states and 2222 transitions. [2022-11-18 20:23:21,774 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 1.6) internal successors, (8), 5 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:23:21,774 INFO L276 IsEmpty]: Start isEmpty. Operand 745 states and 2222 transitions. [2022-11-18 20:23:21,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-18 20:23:21,775 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:23:21,775 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:23:21,794 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53d82a7e-fd3c-4b02-8326-1e2cfa663529/bin/uautomizer-TMbwUNV5ro/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 [2022-11-18 20:23:21,988 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53d82a7e-fd3c-4b02-8326-1e2cfa663529/bin/uautomizer-TMbwUNV5ro/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 [2022-11-18 20:23:21,988 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 15 more)] === [2022-11-18 20:23:21,989 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:23:21,989 INFO L85 PathProgramCache]: Analyzing trace with hash -329600934, now seen corresponding path program 1 times [2022-11-18 20:23:21,989 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 20:23:21,989 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1072466272] [2022-11-18 20:23:21,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:23:21,990 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 [2022-11-18 20:23:21,990 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53d82a7e-fd3c-4b02-8326-1e2cfa663529/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 20:23:21,991 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53d82a7e-fd3c-4b02-8326-1e2cfa663529/bin/uautomizer-TMbwUNV5ro/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) [2022-11-18 20:23:22,012 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53d82a7e-fd3c-4b02-8326-1e2cfa663529/bin/uautomizer-TMbwUNV5ro/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 [2022-11-18 20:23:22,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:23:22,125 INFO L263 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 17 conjunts are in the unsatisfiable core [2022-11-18 20:23:22,129 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:23:23,730 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:23:23,730 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 20:23:23,730 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 20:23:23,731 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1072466272] [2022-11-18 20:23:23,731 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1072466272] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:23:23,731 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:23:23,731 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-18 20:23:23,731 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1119336321] [2022-11-18 20:23:23,731 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:23:23,732 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 20:23:23,732 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 20:23:23,732 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 20:23:23,732 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-18 20:23:23,733 INFO L87 Difference]: Start difference. First operand 745 states and 2222 transitions. Second operand has 6 states, 5 states have (on average 1.8) internal successors, (9), 5 states have internal predecessors, (9), 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) [2022-11-18 20:23:23,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:23:23,786 INFO L93 Difference]: Finished difference Result 748 states and 2231 transitions. [2022-11-18 20:23:23,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 20:23:23,787 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 1.8) internal successors, (9), 5 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2022-11-18 20:23:23,787 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:23:23,792 INFO L225 Difference]: With dead ends: 748 [2022-11-18 20:23:23,793 INFO L226 Difference]: Without dead ends: 748 [2022-11-18 20:23:23,793 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-18 20:23:23,794 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 0 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 53 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 64 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 20:23:23,794 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 53 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 64 Unchecked, 0.0s Time] [2022-11-18 20:23:23,797 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 748 states. [2022-11-18 20:23:23,818 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 748 to 748. [2022-11-18 20:23:23,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 748 states, 731 states have (on average 3.0519835841313268) internal successors, (2231), 747 states have internal predecessors, (2231), 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) [2022-11-18 20:23:23,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 748 states to 748 states and 2231 transitions. [2022-11-18 20:23:23,825 INFO L78 Accepts]: Start accepts. Automaton has 748 states and 2231 transitions. Word has length 9 [2022-11-18 20:23:23,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:23:23,826 INFO L495 AbstractCegarLoop]: Abstraction has 748 states and 2231 transitions. [2022-11-18 20:23:23,826 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 1.8) internal successors, (9), 5 states have internal predecessors, (9), 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) [2022-11-18 20:23:23,826 INFO L276 IsEmpty]: Start isEmpty. Operand 748 states and 2231 transitions. [2022-11-18 20:23:23,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-18 20:23:23,828 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:23:23,828 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:23:23,847 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53d82a7e-fd3c-4b02-8326-1e2cfa663529/bin/uautomizer-TMbwUNV5ro/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 [2022-11-18 20:23:24,042 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53d82a7e-fd3c-4b02-8326-1e2cfa663529/bin/uautomizer-TMbwUNV5ro/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 [2022-11-18 20:23:24,042 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 15 more)] === [2022-11-18 20:23:24,042 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:23:24,043 INFO L85 PathProgramCache]: Analyzing trace with hash -261677454, now seen corresponding path program 2 times [2022-11-18 20:23:24,043 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 20:23:24,043 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [885261873] [2022-11-18 20:23:24,043 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-18 20:23:24,043 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 [2022-11-18 20:23:24,043 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53d82a7e-fd3c-4b02-8326-1e2cfa663529/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 20:23:24,044 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53d82a7e-fd3c-4b02-8326-1e2cfa663529/bin/uautomizer-TMbwUNV5ro/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) [2022-11-18 20:23:24,046 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53d82a7e-fd3c-4b02-8326-1e2cfa663529/bin/uautomizer-TMbwUNV5ro/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 (11)] Waiting until timeout for monitored process [2022-11-18 20:23:24,172 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-18 20:23:24,172 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 20:23:24,177 INFO L263 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 17 conjunts are in the unsatisfiable core [2022-11-18 20:23:24,181 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:23:24,499 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:23:24,500 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 20:23:24,500 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 20:23:24,500 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [885261873] [2022-11-18 20:23:24,500 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [885261873] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:23:24,500 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:23:24,501 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-18 20:23:24,501 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [568700740] [2022-11-18 20:23:24,501 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:23:24,501 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 20:23:24,501 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 20:23:24,502 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 20:23:24,502 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-18 20:23:24,502 INFO L87 Difference]: Start difference. First operand 748 states and 2231 transitions. Second operand has 6 states, 5 states have (on average 1.8) internal successors, (9), 5 states have internal predecessors, (9), 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) [2022-11-18 20:23:24,560 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:23:24,560 INFO L93 Difference]: Finished difference Result 777 states and 2321 transitions. [2022-11-18 20:23:24,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 20:23:24,565 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 1.8) internal successors, (9), 5 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2022-11-18 20:23:24,566 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:23:24,571 INFO L225 Difference]: With dead ends: 777 [2022-11-18 20:23:24,571 INFO L226 Difference]: Without dead ends: 777 [2022-11-18 20:23:24,572 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-18 20:23:24,573 INFO L413 NwaCegarLoop]: 28 mSDtfsCounter, 33 mSDsluCounter, 85 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 113 SdHoareTripleChecker+Invalid, 130 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 119 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 20:23:24,574 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 113 Invalid, 130 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 119 Unchecked, 0.0s Time] [2022-11-18 20:23:24,577 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 777 states. [2022-11-18 20:23:24,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 777 to 777. [2022-11-18 20:23:24,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 777 states, 760 states have (on average 3.0539473684210527) internal successors, (2321), 776 states have internal predecessors, (2321), 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) [2022-11-18 20:23:24,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 777 states to 777 states and 2321 transitions. [2022-11-18 20:23:24,606 INFO L78 Accepts]: Start accepts. Automaton has 777 states and 2321 transitions. Word has length 9 [2022-11-18 20:23:24,606 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:23:24,606 INFO L495 AbstractCegarLoop]: Abstraction has 777 states and 2321 transitions. [2022-11-18 20:23:24,606 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 1.8) internal successors, (9), 5 states have internal predecessors, (9), 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) [2022-11-18 20:23:24,607 INFO L276 IsEmpty]: Start isEmpty. Operand 777 states and 2321 transitions. [2022-11-18 20:23:24,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-18 20:23:24,613 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:23:24,614 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:23:24,634 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53d82a7e-fd3c-4b02-8326-1e2cfa663529/bin/uautomizer-TMbwUNV5ro/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 (11)] Forceful destruction successful, exit code 0 [2022-11-18 20:23:24,834 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53d82a7e-fd3c-4b02-8326-1e2cfa663529/bin/uautomizer-TMbwUNV5ro/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 [2022-11-18 20:23:24,834 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 15 more)] === [2022-11-18 20:23:24,835 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:23:24,836 INFO L85 PathProgramCache]: Analyzing trace with hash -264214494, now seen corresponding path program 3 times [2022-11-18 20:23:24,836 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 20:23:24,836 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [429941051] [2022-11-18 20:23:24,836 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-18 20:23:24,837 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 [2022-11-18 20:23:24,837 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53d82a7e-fd3c-4b02-8326-1e2cfa663529/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 20:23:24,838 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53d82a7e-fd3c-4b02-8326-1e2cfa663529/bin/uautomizer-TMbwUNV5ro/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) [2022-11-18 20:23:24,844 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53d82a7e-fd3c-4b02-8326-1e2cfa663529/bin/uautomizer-TMbwUNV5ro/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 (12)] Waiting until timeout for monitored process [2022-11-18 20:23:24,961 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2022-11-18 20:23:24,961 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 20:23:24,964 INFO L263 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 17 conjunts are in the unsatisfiable core [2022-11-18 20:23:24,967 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:23:25,274 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:23:25,274 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 20:23:25,274 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 20:23:25,274 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [429941051] [2022-11-18 20:23:25,275 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [429941051] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:23:25,275 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:23:25,275 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-18 20:23:25,275 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [69070313] [2022-11-18 20:23:25,275 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:23:25,275 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 20:23:25,275 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 20:23:25,276 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 20:23:25,288 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-18 20:23:25,288 INFO L87 Difference]: Start difference. First operand 777 states and 2321 transitions. Second operand has 6 states, 5 states have (on average 1.8) internal successors, (9), 5 states have internal predecessors, (9), 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) [2022-11-18 20:23:25,334 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:23:25,334 INFO L93 Difference]: Finished difference Result 778 states and 2324 transitions. [2022-11-18 20:23:25,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 20:23:25,336 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 1.8) internal successors, (9), 5 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2022-11-18 20:23:25,336 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:23:25,341 INFO L225 Difference]: With dead ends: 778 [2022-11-18 20:23:25,341 INFO L226 Difference]: Without dead ends: 778 [2022-11-18 20:23:25,342 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-18 20:23:25,342 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 0 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 53 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 67 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 20:23:25,343 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 53 Invalid, 78 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 67 Unchecked, 0.0s Time] [2022-11-18 20:23:25,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 778 states. [2022-11-18 20:23:25,366 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 778 to 776. [2022-11-18 20:23:25,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 776 states, 759 states have (on average 3.054018445322793) internal successors, (2318), 775 states have internal predecessors, (2318), 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) [2022-11-18 20:23:25,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 776 states to 776 states and 2318 transitions. [2022-11-18 20:23:25,372 INFO L78 Accepts]: Start accepts. Automaton has 776 states and 2318 transitions. Word has length 9 [2022-11-18 20:23:25,373 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:23:25,373 INFO L495 AbstractCegarLoop]: Abstraction has 776 states and 2318 transitions. [2022-11-18 20:23:25,373 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 1.8) internal successors, (9), 5 states have internal predecessors, (9), 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) [2022-11-18 20:23:25,373 INFO L276 IsEmpty]: Start isEmpty. Operand 776 states and 2318 transitions. [2022-11-18 20:23:25,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-18 20:23:25,374 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:23:25,374 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:23:25,388 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53d82a7e-fd3c-4b02-8326-1e2cfa663529/bin/uautomizer-TMbwUNV5ro/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 (12)] Forceful destruction successful, exit code 0 [2022-11-18 20:23:25,588 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53d82a7e-fd3c-4b02-8326-1e2cfa663529/bin/uautomizer-TMbwUNV5ro/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 [2022-11-18 20:23:25,588 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 15 more)] === [2022-11-18 20:23:25,588 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:23:25,588 INFO L85 PathProgramCache]: Analyzing trace with hash -264158694, now seen corresponding path program 4 times [2022-11-18 20:23:25,589 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 20:23:25,589 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1936755729] [2022-11-18 20:23:25,589 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-18 20:23:25,589 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 [2022-11-18 20:23:25,589 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53d82a7e-fd3c-4b02-8326-1e2cfa663529/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 20:23:25,590 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53d82a7e-fd3c-4b02-8326-1e2cfa663529/bin/uautomizer-TMbwUNV5ro/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) [2022-11-18 20:23:25,591 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53d82a7e-fd3c-4b02-8326-1e2cfa663529/bin/uautomizer-TMbwUNV5ro/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 (13)] Waiting until timeout for monitored process [2022-11-18 20:23:25,718 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-18 20:23:25,718 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 20:23:25,722 INFO L263 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 17 conjunts are in the unsatisfiable core [2022-11-18 20:23:25,725 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:23:26,023 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:23:26,024 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 20:23:26,024 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 20:23:26,024 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1936755729] [2022-11-18 20:23:26,024 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1936755729] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:23:26,024 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:23:26,024 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-18 20:23:26,025 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1950766449] [2022-11-18 20:23:26,025 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:23:26,025 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 20:23:26,025 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 20:23:26,026 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 20:23:26,026 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-18 20:23:26,026 INFO L87 Difference]: Start difference. First operand 776 states and 2318 transitions. Second operand has 6 states, 5 states have (on average 1.8) internal successors, (9), 5 states have internal predecessors, (9), 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) [2022-11-18 20:23:26,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:23:26,070 INFO L93 Difference]: Finished difference Result 784 states and 2343 transitions. [2022-11-18 20:23:26,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 20:23:26,071 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 1.8) internal successors, (9), 5 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2022-11-18 20:23:26,071 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:23:26,077 INFO L225 Difference]: With dead ends: 784 [2022-11-18 20:23:26,077 INFO L226 Difference]: Without dead ends: 784 [2022-11-18 20:23:26,077 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-18 20:23:26,078 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 11 mSDsluCounter, 55 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 73 SdHoareTripleChecker+Invalid, 88 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 77 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 20:23:26,079 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 73 Invalid, 88 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 77 Unchecked, 0.0s Time] [2022-11-18 20:23:26,081 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 784 states. [2022-11-18 20:23:26,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 784 to 774. [2022-11-18 20:23:26,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 774 states, 757 states have (on average 3.0541611624834872) internal successors, (2312), 773 states have internal predecessors, (2312), 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) [2022-11-18 20:23:26,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 774 states to 774 states and 2312 transitions. [2022-11-18 20:23:26,116 INFO L78 Accepts]: Start accepts. Automaton has 774 states and 2312 transitions. Word has length 9 [2022-11-18 20:23:26,116 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:23:26,116 INFO L495 AbstractCegarLoop]: Abstraction has 774 states and 2312 transitions. [2022-11-18 20:23:26,117 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 1.8) internal successors, (9), 5 states have internal predecessors, (9), 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) [2022-11-18 20:23:26,117 INFO L276 IsEmpty]: Start isEmpty. Operand 774 states and 2312 transitions. [2022-11-18 20:23:26,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-18 20:23:26,118 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:23:26,118 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:23:26,138 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53d82a7e-fd3c-4b02-8326-1e2cfa663529/bin/uautomizer-TMbwUNV5ro/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 (13)] Forceful destruction successful, exit code 0 [2022-11-18 20:23:26,337 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53d82a7e-fd3c-4b02-8326-1e2cfa663529/bin/uautomizer-TMbwUNV5ro/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 [2022-11-18 20:23:26,338 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 15 more)] === [2022-11-18 20:23:26,338 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:23:26,338 INFO L85 PathProgramCache]: Analyzing trace with hash -264157795, now seen corresponding path program 1 times [2022-11-18 20:23:26,339 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 20:23:26,339 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2073406476] [2022-11-18 20:23:26,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:23:26,339 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 [2022-11-18 20:23:26,339 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53d82a7e-fd3c-4b02-8326-1e2cfa663529/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 20:23:26,340 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53d82a7e-fd3c-4b02-8326-1e2cfa663529/bin/uautomizer-TMbwUNV5ro/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) [2022-11-18 20:23:26,342 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53d82a7e-fd3c-4b02-8326-1e2cfa663529/bin/uautomizer-TMbwUNV5ro/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 (14)] Waiting until timeout for monitored process [2022-11-18 20:23:26,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:23:26,462 INFO L263 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 17 conjunts are in the unsatisfiable core [2022-11-18 20:23:26,464 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:23:26,761 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:23:26,761 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 20:23:26,761 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 20:23:26,762 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2073406476] [2022-11-18 20:23:26,762 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2073406476] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:23:26,762 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:23:26,762 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-18 20:23:26,762 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [526653291] [2022-11-18 20:23:26,762 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:23:26,763 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 20:23:26,763 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 20:23:26,763 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 20:23:26,763 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-18 20:23:26,764 INFO L87 Difference]: Start difference. First operand 774 states and 2312 transitions. Second operand has 6 states, 5 states have (on average 1.8) internal successors, (9), 5 states have internal predecessors, (9), 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) [2022-11-18 20:23:26,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:23:26,808 INFO L93 Difference]: Finished difference Result 775 states and 2315 transitions. [2022-11-18 20:23:26,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 20:23:26,809 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 1.8) internal successors, (9), 5 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2022-11-18 20:23:26,809 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:23:26,815 INFO L225 Difference]: With dead ends: 775 [2022-11-18 20:23:26,815 INFO L226 Difference]: Without dead ends: 775 [2022-11-18 20:23:26,815 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-18 20:23:26,816 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 0 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 53 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 66 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 20:23:26,816 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 53 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 66 Unchecked, 0.0s Time] [2022-11-18 20:23:26,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 775 states. [2022-11-18 20:23:26,836 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 775 to 775. [2022-11-18 20:23:26,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 775 states, 758 states have (on average 3.054089709762533) internal successors, (2315), 774 states have internal predecessors, (2315), 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) [2022-11-18 20:23:26,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 775 states to 775 states and 2315 transitions. [2022-11-18 20:23:26,855 INFO L78 Accepts]: Start accepts. Automaton has 775 states and 2315 transitions. Word has length 9 [2022-11-18 20:23:26,855 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:23:26,855 INFO L495 AbstractCegarLoop]: Abstraction has 775 states and 2315 transitions. [2022-11-18 20:23:26,855 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 1.8) internal successors, (9), 5 states have internal predecessors, (9), 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) [2022-11-18 20:23:26,855 INFO L276 IsEmpty]: Start isEmpty. Operand 775 states and 2315 transitions. [2022-11-18 20:23:26,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-18 20:23:26,856 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:23:26,856 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:23:26,876 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53d82a7e-fd3c-4b02-8326-1e2cfa663529/bin/uautomizer-TMbwUNV5ro/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 (14)] Forceful destruction successful, exit code 0 [2022-11-18 20:23:27,056 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53d82a7e-fd3c-4b02-8326-1e2cfa663529/bin/uautomizer-TMbwUNV5ro/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 [2022-11-18 20:23:27,056 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 15 more)] === [2022-11-18 20:23:27,057 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:23:27,057 INFO L85 PathProgramCache]: Analyzing trace with hash -264186625, now seen corresponding path program 2 times [2022-11-18 20:23:27,057 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 20:23:27,057 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1159252626] [2022-11-18 20:23:27,058 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-18 20:23:27,058 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 [2022-11-18 20:23:27,058 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53d82a7e-fd3c-4b02-8326-1e2cfa663529/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 20:23:27,059 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53d82a7e-fd3c-4b02-8326-1e2cfa663529/bin/uautomizer-TMbwUNV5ro/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) [2022-11-18 20:23:27,060 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53d82a7e-fd3c-4b02-8326-1e2cfa663529/bin/uautomizer-TMbwUNV5ro/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 (15)] Waiting until timeout for monitored process [2022-11-18 20:23:27,182 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-18 20:23:27,182 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 20:23:27,186 INFO L263 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 17 conjunts are in the unsatisfiable core [2022-11-18 20:23:27,189 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:23:27,469 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:23:27,469 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 20:23:27,469 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 20:23:27,469 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1159252626] [2022-11-18 20:23:27,470 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1159252626] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:23:27,470 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:23:27,470 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-18 20:23:27,470 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [393192795] [2022-11-18 20:23:27,470 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:23:27,470 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 20:23:27,470 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 20:23:27,471 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 20:23:27,471 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-18 20:23:27,471 INFO L87 Difference]: Start difference. First operand 775 states and 2315 transitions. Second operand has 6 states, 5 states have (on average 1.8) internal successors, (9), 5 states have internal predecessors, (9), 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) [2022-11-18 20:23:27,514 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:23:27,514 INFO L93 Difference]: Finished difference Result 786 states and 2349 transitions. [2022-11-18 20:23:27,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 20:23:27,516 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 1.8) internal successors, (9), 5 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2022-11-18 20:23:27,516 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:23:27,520 INFO L225 Difference]: With dead ends: 786 [2022-11-18 20:23:27,520 INFO L226 Difference]: Without dead ends: 786 [2022-11-18 20:23:27,521 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-18 20:23:27,521 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 11 mSDsluCounter, 55 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 73 SdHoareTripleChecker+Invalid, 89 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 78 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 20:23:27,522 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 73 Invalid, 89 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 78 Unchecked, 0.0s Time] [2022-11-18 20:23:27,524 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 786 states. [2022-11-18 20:23:27,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 786 to 786. [2022-11-18 20:23:27,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 786 states, 769 states have (on average 3.054616384915475) internal successors, (2349), 785 states have internal predecessors, (2349), 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) [2022-11-18 20:23:27,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 786 states to 786 states and 2349 transitions. [2022-11-18 20:23:27,545 INFO L78 Accepts]: Start accepts. Automaton has 786 states and 2349 transitions. Word has length 9 [2022-11-18 20:23:27,545 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:23:27,545 INFO L495 AbstractCegarLoop]: Abstraction has 786 states and 2349 transitions. [2022-11-18 20:23:27,545 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 1.8) internal successors, (9), 5 states have internal predecessors, (9), 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) [2022-11-18 20:23:27,546 INFO L276 IsEmpty]: Start isEmpty. Operand 786 states and 2349 transitions. [2022-11-18 20:23:27,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-18 20:23:27,546 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:23:27,546 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:23:27,565 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53d82a7e-fd3c-4b02-8326-1e2cfa663529/bin/uautomizer-TMbwUNV5ro/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 (15)] Forceful destruction successful, exit code 0 [2022-11-18 20:23:27,758 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53d82a7e-fd3c-4b02-8326-1e2cfa663529/bin/uautomizer-TMbwUNV5ro/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 [2022-11-18 20:23:27,759 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 15 more)] === [2022-11-18 20:23:27,759 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:23:27,759 INFO L85 PathProgramCache]: Analyzing trace with hash -260813515, now seen corresponding path program 3 times [2022-11-18 20:23:27,759 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 20:23:27,759 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [111335444] [2022-11-18 20:23:27,760 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-18 20:23:27,760 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 [2022-11-18 20:23:27,760 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53d82a7e-fd3c-4b02-8326-1e2cfa663529/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 20:23:27,761 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53d82a7e-fd3c-4b02-8326-1e2cfa663529/bin/uautomizer-TMbwUNV5ro/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) [2022-11-18 20:23:27,768 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53d82a7e-fd3c-4b02-8326-1e2cfa663529/bin/uautomizer-TMbwUNV5ro/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 (16)] Waiting until timeout for monitored process [2022-11-18 20:23:27,897 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2022-11-18 20:23:27,898 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 20:23:27,902 INFO L263 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 17 conjunts are in the unsatisfiable core [2022-11-18 20:23:27,905 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:23:28,240 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:23:28,240 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 20:23:28,240 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 20:23:28,240 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [111335444] [2022-11-18 20:23:28,241 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [111335444] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:23:28,241 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:23:28,241 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-18 20:23:28,241 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [86863409] [2022-11-18 20:23:28,241 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:23:28,242 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 20:23:28,242 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 20:23:28,242 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 20:23:28,242 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-18 20:23:28,243 INFO L87 Difference]: Start difference. First operand 786 states and 2349 transitions. Second operand has 6 states, 5 states have (on average 1.8) internal successors, (9), 5 states have internal predecessors, (9), 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) [2022-11-18 20:23:28,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:23:28,293 INFO L93 Difference]: Finished difference Result 816 states and 2442 transitions. [2022-11-18 20:23:28,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 20:23:28,295 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 1.8) internal successors, (9), 5 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2022-11-18 20:23:28,295 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:23:28,300 INFO L225 Difference]: With dead ends: 816 [2022-11-18 20:23:28,301 INFO L226 Difference]: Without dead ends: 816 [2022-11-18 20:23:28,301 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-18 20:23:28,302 INFO L413 NwaCegarLoop]: 28 mSDtfsCounter, 21 mSDsluCounter, 85 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 113 SdHoareTripleChecker+Invalid, 94 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 83 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 20:23:28,302 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 113 Invalid, 94 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 83 Unchecked, 0.0s Time] [2022-11-18 20:23:28,305 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 816 states. [2022-11-18 20:23:28,322 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 816 to 812. [2022-11-18 20:23:28,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 812 states, 795 states have (on average 3.060377358490566) internal successors, (2433), 811 states have internal predecessors, (2433), 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) [2022-11-18 20:23:28,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 812 states to 812 states and 2433 transitions. [2022-11-18 20:23:28,327 INFO L78 Accepts]: Start accepts. Automaton has 812 states and 2433 transitions. Word has length 9 [2022-11-18 20:23:28,328 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:23:28,328 INFO L495 AbstractCegarLoop]: Abstraction has 812 states and 2433 transitions. [2022-11-18 20:23:28,328 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 1.8) internal successors, (9), 5 states have internal predecessors, (9), 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) [2022-11-18 20:23:28,328 INFO L276 IsEmpty]: Start isEmpty. Operand 812 states and 2433 transitions. [2022-11-18 20:23:28,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-18 20:23:28,329 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:23:28,329 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:23:28,350 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53d82a7e-fd3c-4b02-8326-1e2cfa663529/bin/uautomizer-TMbwUNV5ro/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 (16)] Forceful destruction successful, exit code 0 [2022-11-18 20:23:28,542 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53d82a7e-fd3c-4b02-8326-1e2cfa663529/bin/uautomizer-TMbwUNV5ro/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 [2022-11-18 20:23:28,542 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 15 more)] === [2022-11-18 20:23:28,543 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:23:28,543 INFO L85 PathProgramCache]: Analyzing trace with hash -302818825, now seen corresponding path program 4 times [2022-11-18 20:23:28,544 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 20:23:28,544 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [163099600] [2022-11-18 20:23:28,544 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-18 20:23:28,544 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 [2022-11-18 20:23:28,545 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53d82a7e-fd3c-4b02-8326-1e2cfa663529/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 20:23:28,546 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53d82a7e-fd3c-4b02-8326-1e2cfa663529/bin/uautomizer-TMbwUNV5ro/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) [2022-11-18 20:23:28,553 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53d82a7e-fd3c-4b02-8326-1e2cfa663529/bin/uautomizer-TMbwUNV5ro/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 (17)] Waiting until timeout for monitored process [2022-11-18 20:23:28,682 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-18 20:23:28,682 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 20:23:28,686 INFO L263 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 17 conjunts are in the unsatisfiable core [2022-11-18 20:23:28,689 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:23:30,984 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:23:30,985 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 20:23:30,985 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 20:23:30,985 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [163099600] [2022-11-18 20:23:30,985 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [163099600] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:23:30,985 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:23:30,985 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-18 20:23:30,986 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [139554261] [2022-11-18 20:23:30,986 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:23:30,986 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 20:23:30,986 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 20:23:30,987 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 20:23:30,987 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=20, Unknown=1, NotChecked=0, Total=30 [2022-11-18 20:23:30,987 INFO L87 Difference]: Start difference. First operand 812 states and 2433 transitions. Second operand has 6 states, 5 states have (on average 1.8) internal successors, (9), 5 states have internal predecessors, (9), 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) [2022-11-18 20:23:31,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:23:31,033 INFO L93 Difference]: Finished difference Result 811 states and 2430 transitions. [2022-11-18 20:23:31,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 20:23:31,034 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 1.8) internal successors, (9), 5 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2022-11-18 20:23:31,035 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:23:31,040 INFO L225 Difference]: With dead ends: 811 [2022-11-18 20:23:31,040 INFO L226 Difference]: Without dead ends: 811 [2022-11-18 20:23:31,040 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=9, Invalid=20, Unknown=1, NotChecked=0, Total=30 [2022-11-18 20:23:31,041 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 0 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 53 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 63 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 20:23:31,041 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 53 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 63 Unchecked, 0.0s Time] [2022-11-18 20:23:31,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 811 states. [2022-11-18 20:23:31,060 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 811 to 809. [2022-11-18 20:23:31,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 809 states, 792 states have (on average 3.0606060606060606) internal successors, (2424), 808 states have internal predecessors, (2424), 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) [2022-11-18 20:23:31,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 809 states to 809 states and 2424 transitions. [2022-11-18 20:23:31,066 INFO L78 Accepts]: Start accepts. Automaton has 809 states and 2424 transitions. Word has length 9 [2022-11-18 20:23:31,066 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:23:31,066 INFO L495 AbstractCegarLoop]: Abstraction has 809 states and 2424 transitions. [2022-11-18 20:23:31,066 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 1.8) internal successors, (9), 5 states have internal predecessors, (9), 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) [2022-11-18 20:23:31,067 INFO L276 IsEmpty]: Start isEmpty. Operand 809 states and 2424 transitions. [2022-11-18 20:23:31,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-18 20:23:31,067 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:23:31,067 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:23:31,089 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53d82a7e-fd3c-4b02-8326-1e2cfa663529/bin/uautomizer-TMbwUNV5ro/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 (17)] Forceful destruction successful, exit code 0 [2022-11-18 20:23:31,280 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53d82a7e-fd3c-4b02-8326-1e2cfa663529/bin/uautomizer-TMbwUNV5ro/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 [2022-11-18 20:23:31,281 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting t1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 15 more)] === [2022-11-18 20:23:31,281 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:23:31,281 INFO L85 PathProgramCache]: Analyzing trace with hash -91677995, now seen corresponding path program 1 times [2022-11-18 20:23:31,281 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 20:23:31,282 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1980985213] [2022-11-18 20:23:31,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:23:31,282 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 [2022-11-18 20:23:31,282 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53d82a7e-fd3c-4b02-8326-1e2cfa663529/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 20:23:31,283 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53d82a7e-fd3c-4b02-8326-1e2cfa663529/bin/uautomizer-TMbwUNV5ro/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) [2022-11-18 20:23:31,289 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53d82a7e-fd3c-4b02-8326-1e2cfa663529/bin/uautomizer-TMbwUNV5ro/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 (18)] Waiting until timeout for monitored process [2022-11-18 20:23:31,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:23:31,400 INFO L263 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 12 conjunts are in the unsatisfiable core [2022-11-18 20:23:31,402 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:23:31,465 INFO L321 Elim1Store]: treesize reduction 50, result has 23.1 percent of original size [2022-11-18 20:23:31,466 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 [2022-11-18 20:23:31,703 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:23:31,703 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 20:23:31,704 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 20:23:31,704 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1980985213] [2022-11-18 20:23:31,704 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1980985213] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:23:31,704 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:23:31,705 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-18 20:23:31,705 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1090951517] [2022-11-18 20:23:31,705 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:23:31,705 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 20:23:31,706 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 20:23:31,706 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 20:23:31,706 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-18 20:23:31,707 INFO L87 Difference]: Start difference. First operand 809 states and 2424 transitions. Second operand has 6 states, 5 states have (on average 1.8) internal successors, (9), 5 states have internal predecessors, (9), 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) [2022-11-18 20:23:31,760 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:23:31,760 INFO L93 Difference]: Finished difference Result 814 states and 2436 transitions. [2022-11-18 20:23:31,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 20:23:31,761 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 1.8) internal successors, (9), 5 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2022-11-18 20:23:31,762 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:23:31,768 INFO L225 Difference]: With dead ends: 814 [2022-11-18 20:23:31,768 INFO L226 Difference]: Without dead ends: 814 [2022-11-18 20:23:31,768 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-18 20:23:31,769 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 2 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 48 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 70 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 20:23:31,769 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 48 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 70 Unchecked, 0.0s Time] [2022-11-18 20:23:31,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 814 states. [2022-11-18 20:23:31,790 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 814 to 813. [2022-11-18 20:23:31,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 813 states, 796 states have (on average 3.057788944723618) internal successors, (2434), 812 states have internal predecessors, (2434), 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) [2022-11-18 20:23:31,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 813 states to 813 states and 2434 transitions. [2022-11-18 20:23:31,796 INFO L78 Accepts]: Start accepts. Automaton has 813 states and 2434 transitions. Word has length 9 [2022-11-18 20:23:31,796 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:23:31,796 INFO L495 AbstractCegarLoop]: Abstraction has 813 states and 2434 transitions. [2022-11-18 20:23:31,796 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 1.8) internal successors, (9), 5 states have internal predecessors, (9), 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) [2022-11-18 20:23:31,797 INFO L276 IsEmpty]: Start isEmpty. Operand 813 states and 2434 transitions. [2022-11-18 20:23:31,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-18 20:23:31,798 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:23:31,798 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:23:31,822 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53d82a7e-fd3c-4b02-8326-1e2cfa663529/bin/uautomizer-TMbwUNV5ro/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 (18)] Forceful destruction successful, exit code 0 [2022-11-18 20:23:32,022 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53d82a7e-fd3c-4b02-8326-1e2cfa663529/bin/uautomizer-TMbwUNV5ro/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 [2022-11-18 20:23:32,023 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting t1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 15 more)] === [2022-11-18 20:23:32,023 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:23:32,024 INFO L85 PathProgramCache]: Analyzing trace with hash -91677994, now seen corresponding path program 1 times [2022-11-18 20:23:32,024 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 20:23:32,024 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [889319623] [2022-11-18 20:23:32,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:23:32,024 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 [2022-11-18 20:23:32,024 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53d82a7e-fd3c-4b02-8326-1e2cfa663529/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 20:23:32,026 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53d82a7e-fd3c-4b02-8326-1e2cfa663529/bin/uautomizer-TMbwUNV5ro/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) [2022-11-18 20:23:32,071 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53d82a7e-fd3c-4b02-8326-1e2cfa663529/bin/uautomizer-TMbwUNV5ro/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 (19)] Waiting until timeout for monitored process [2022-11-18 20:23:32,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:23:32,172 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 20:23:32,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:23:32,279 INFO L130 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2022-11-18 20:23:32,279 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-18 20:23:32,281 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location t1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (17 of 18 remaining) [2022-11-18 20:23:32,283 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK (16 of 18 remaining) [2022-11-18 20:23:32,283 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (15 of 18 remaining) [2022-11-18 20:23:32,284 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (14 of 18 remaining) [2022-11-18 20:23:32,284 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (13 of 18 remaining) [2022-11-18 20:23:32,284 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (12 of 18 remaining) [2022-11-18 20:23:32,284 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_FREE (11 of 18 remaining) [2022-11-18 20:23:32,285 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_FREE (10 of 18 remaining) [2022-11-18 20:23:32,285 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_FREE (9 of 18 remaining) [2022-11-18 20:23:32,285 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 18 remaining) [2022-11-18 20:23:32,285 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (7 of 18 remaining) [2022-11-18 20:23:32,286 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 18 remaining) [2022-11-18 20:23:32,286 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 18 remaining) [2022-11-18 20:23:32,286 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 18 remaining) [2022-11-18 20:23:32,286 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 18 remaining) [2022-11-18 20:23:32,287 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 18 remaining) [2022-11-18 20:23:32,287 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (1 of 18 remaining) [2022-11-18 20:23:32,287 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (0 of 18 remaining) [2022-11-18 20:23:32,323 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53d82a7e-fd3c-4b02-8326-1e2cfa663529/bin/uautomizer-TMbwUNV5ro/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 (19)] Forceful destruction successful, exit code 0 [2022-11-18 20:23:32,488 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53d82a7e-fd3c-4b02-8326-1e2cfa663529/bin/uautomizer-TMbwUNV5ro/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 [2022-11-18 20:23:32,490 INFO L444 BasicCegarLoop]: Path program histogram: [4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:23:32,497 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-18 20:23:32,497 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-18 20:23:32,545 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 08:23:32 BasicIcfg [2022-11-18 20:23:32,545 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-18 20:23:32,546 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-18 20:23:32,546 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-18 20:23:32,546 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-18 20:23:32,547 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:23:04" (3/4) ... [2022-11-18 20:23:32,560 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-11-18 20:23:32,639 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53d82a7e-fd3c-4b02-8326-1e2cfa663529/bin/uautomizer-TMbwUNV5ro/witness.graphml [2022-11-18 20:23:32,639 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-18 20:23:32,640 INFO L158 Benchmark]: Toolchain (without parser) took 30077.99ms. Allocated memory was 73.4MB in the beginning and 142.6MB in the end (delta: 69.2MB). Free memory was 54.2MB in the beginning and 95.3MB in the end (delta: -41.1MB). Peak memory consumption was 28.5MB. Max. memory is 16.1GB. [2022-11-18 20:23:32,640 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 73.4MB. Free memory was 54.7MB in the beginning and 54.6MB in the end (delta: 94.4kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-18 20:23:32,641 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1007.23ms. Allocated memory is still 73.4MB. Free memory was 54.0MB in the beginning and 35.0MB in the end (delta: 19.0MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-11-18 20:23:32,641 INFO L158 Benchmark]: Boogie Procedure Inliner took 87.00ms. Allocated memory is still 73.4MB. Free memory was 35.0MB in the beginning and 56.3MB in the end (delta: -21.3MB). Peak memory consumption was 5.9MB. Max. memory is 16.1GB. [2022-11-18 20:23:32,642 INFO L158 Benchmark]: Boogie Preprocessor took 37.32ms. Allocated memory is still 73.4MB. Free memory was 56.3MB in the beginning and 54.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-18 20:23:32,642 INFO L158 Benchmark]: RCFGBuilder took 769.68ms. Allocated memory is still 73.4MB. Free memory was 54.2MB in the beginning and 36.7MB in the end (delta: 17.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-11-18 20:23:32,643 INFO L158 Benchmark]: TraceAbstraction took 28075.79ms. Allocated memory was 73.4MB in the beginning and 142.6MB in the end (delta: 69.2MB). Free memory was 35.9MB in the beginning and 99.5MB in the end (delta: -63.5MB). Peak memory consumption was 6.5MB. Max. memory is 16.1GB. [2022-11-18 20:23:32,644 INFO L158 Benchmark]: Witness Printer took 93.36ms. Allocated memory is still 142.6MB. Free memory was 98.4MB in the beginning and 95.3MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-18 20:23:32,653 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 73.4MB. Free memory was 54.7MB in the beginning and 54.6MB in the end (delta: 94.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1007.23ms. Allocated memory is still 73.4MB. Free memory was 54.0MB in the beginning and 35.0MB in the end (delta: 19.0MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 87.00ms. Allocated memory is still 73.4MB. Free memory was 35.0MB in the beginning and 56.3MB in the end (delta: -21.3MB). Peak memory consumption was 5.9MB. Max. memory is 16.1GB. * Boogie Preprocessor took 37.32ms. Allocated memory is still 73.4MB. Free memory was 56.3MB in the beginning and 54.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 769.68ms. Allocated memory is still 73.4MB. Free memory was 54.2MB in the beginning and 36.7MB in the end (delta: 17.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 28075.79ms. Allocated memory was 73.4MB in the beginning and 142.6MB in the end (delta: 69.2MB). Free memory was 35.9MB in the beginning and 99.5MB in the end (delta: -63.5MB). Peak memory consumption was 6.5MB. Max. memory is 16.1GB. * Witness Printer took 93.36ms. Allocated memory is still 142.6MB. Free memory was 98.4MB in the beginning and 95.3MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 11.7s, 103 PlacesBefore, 45 PlacesAfterwards, 105 TransitionsBefore, 45 TransitionsAfterwards, 2546 CoEnabledTransitionPairs, 6 FixpointIterations, 45 TrivialSequentialCompositions, 36 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 6 ConcurrentYvCompositions, 2 ChoiceCompositions, 89 TotalNumberOfCompositions, 6968 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2556, independent: 2339, independent conditional: 0, independent unconditional: 2339, dependent: 217, dependent conditional: 0, dependent unconditional: 217, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1293, independent: 1251, independent conditional: 0, independent unconditional: 1251, dependent: 42, dependent conditional: 0, dependent unconditional: 42, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1293, independent: 1239, independent conditional: 0, independent unconditional: 1239, dependent: 54, dependent conditional: 0, dependent unconditional: 54, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 54, independent: 12, independent conditional: 0, independent unconditional: 12, dependent: 42, dependent conditional: 0, dependent unconditional: 42, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 474, independent: 59, independent conditional: 0, independent unconditional: 59, dependent: 415, dependent conditional: 0, dependent unconditional: 415, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 2556, independent: 1088, independent conditional: 0, independent unconditional: 1088, dependent: 175, dependent conditional: 0, dependent unconditional: 175, unknown: 1293, unknown conditional: 0, unknown unconditional: 1293] , 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 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: -1]: pointer dereference may fail pointer dereference may fail We found a FailurePath: [L1039] 0 int j = 2, i = 1; [L1037] 0 int size; [L1040] 0 int x, y, z; [L1038] 0 int ind; [L1068] 0 size = __VERIFIER_nondet_int() [L1069] COND FALSE 0 !(size < 1 || size > 20) [L1072] 0 int *a = (int *)malloc(size); [L1073] 0 pthread_t id1, id2; [L1074] 0 ind = 0 [L1075] FCALL, FORK 0 pthread_create(&id1, ((void *)0), t1, a) VAL [\old(argc)=5, a={131073:0}, arg={131073:0}, argc=5, argv={7:6}, argv={7:6}, i=1, id1={524291:0}, id2={524295:0}, ind=0, j=2, pthread_create(&id1, ((void *)0), t1, a)=-1, size=2, x=0, y=0, z=0] [L1042] 1 x = 1 VAL [arg={131073:0}, arg={131073:0}, i=1, ind=0, j=2, size=2, x=1, y=0, z=0] [L1043] 1 y = 1 [L1044] 1 int *a = (int *)arg; VAL [a={131073:0}, arg={131073:0}, arg={131073:0}, i=1, ind=0, j=2, size=2, x=1, y=1, z=0] [L1045] COND FALSE 1 !(y == 1 && z) VAL [a={131073:0}, arg={131073:0}, arg={131073:0}, i=1, ind=0, j=2, size=2, x=1, y=1, z=0] [L1047] COND TRUE 1 ind < size - 1 VAL [a={131073:0}, arg={131073:0}, arg={131073:0}, i=1, ind=0, j=2, size=2, x=1, y=1, z=0] [L1048] 1 ++ind VAL [a={131073:0}, arg={131073:0}, arg={131073:0}, 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. OverallTime: 27.8s, OverallIterations: 18, TraceHistogramMax: 1, PathProgramHistogramMax: 4, EmptinessCheckTime: 0.0s, AutomataDifference: 1.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 11.8s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 248 SdHoareTripleChecker+Valid, 1.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 248 mSDsluCounter, 828 SdHoareTripleChecker+Invalid, 1.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 752 IncrementalHoareTripleChecker+Unchecked, 557 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 365 IncrementalHoareTripleChecker+Invalid, 1118 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 271 mSDtfsCounter, 365 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 96 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1135occurred in iteration=0, InterpolantAutomatonStates: 80, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.8s AutomataMinimizationTime, 17 MinimizatonAttempts, 19 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.8s SatisfiabilityAnalysisTime, 7.0s InterpolantComputationTime, 122 NumberOfCodeBlocks, 122 NumberOfCodeBlocksAsserted, 18 NumberOfCheckSat, 96 ConstructedInterpolants, 79 QuantifiedInterpolants, 3162 SizeOfPredicates, 29 NumberOfNonLiveVariables, 1175 ConjunctsInSsa, 185 ConjunctsInUnsatCore, 17 InterpolantComputations, 17 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! [2022-11-18 20:23:32,691 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53d82a7e-fd3c-4b02-8326-1e2cfa663529/bin/uautomizer-TMbwUNV5ro/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)