./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/ldv-memsafety/memleaks_test20-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 5e519f3a 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_e7a1cd6b-2ad4-48c8-9f51-b49c53810879/bin/uautomizer-Dbtcem3rbc/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7a1cd6b-2ad4-48c8-9f51-b49c53810879/bin/uautomizer-Dbtcem3rbc/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7a1cd6b-2ad4-48c8-9f51-b49c53810879/bin/uautomizer-Dbtcem3rbc/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7a1cd6b-2ad4-48c8-9f51-b49c53810879/bin/uautomizer-Dbtcem3rbc/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-memsafety/memleaks_test20-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7a1cd6b-2ad4-48c8-9f51-b49c53810879/bin/uautomizer-Dbtcem3rbc/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7a1cd6b-2ad4-48c8-9f51-b49c53810879/bin/uautomizer-Dbtcem3rbc --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 c03aa9fd4feebd47970076773e3fcb11c7b82646fa9d57d8ea4dde0614545dfa --- 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-5e519f3 [2022-11-02 20:42:25,924 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-02 20:42:25,928 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-02 20:42:25,992 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-02 20:42:25,993 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-02 20:42:25,998 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-02 20:42:26,001 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-02 20:42:26,006 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-02 20:42:26,008 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-02 20:42:26,017 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-02 20:42:26,019 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-02 20:42:26,022 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-02 20:42:26,022 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-02 20:42:26,026 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-02 20:42:26,028 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-02 20:42:26,030 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-02 20:42:26,032 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-02 20:42:26,034 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-02 20:42:26,035 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-02 20:42:26,047 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-02 20:42:26,051 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-02 20:42:26,053 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-02 20:42:26,054 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-02 20:42:26,057 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-02 20:42:26,064 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-02 20:42:26,069 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-02 20:42:26,069 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-02 20:42:26,070 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-02 20:42:26,072 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-02 20:42:26,073 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-02 20:42:26,074 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-02 20:42:26,075 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-02 20:42:26,077 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-02 20:42:26,079 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-02 20:42:26,080 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-02 20:42:26,080 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-02 20:42:26,081 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-02 20:42:26,081 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-02 20:42:26,082 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-02 20:42:26,083 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-02 20:42:26,084 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-02 20:42:26,084 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7a1cd6b-2ad4-48c8-9f51-b49c53810879/bin/uautomizer-Dbtcem3rbc/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2022-11-02 20:42:26,134 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-02 20:42:26,134 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-02 20:42:26,135 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-02 20:42:26,135 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-02 20:42:26,136 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-02 20:42:26,137 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-02 20:42:26,138 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-02 20:42:26,138 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-02 20:42:26,138 INFO L138 SettingsManager]: * Use SBE=true [2022-11-02 20:42:26,139 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-02 20:42:26,140 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-02 20:42:26,141 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-02 20:42:26,141 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-02 20:42:26,141 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-02 20:42:26,142 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-02 20:42:26,142 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-11-02 20:42:26,142 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-11-02 20:42:26,142 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-11-02 20:42:26,143 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-02 20:42:26,143 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-02 20:42:26,143 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-02 20:42:26,143 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-02 20:42:26,144 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-02 20:42:26,144 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-02 20:42:26,144 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-02 20:42:26,145 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-02 20:42:26,145 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-02 20:42:26,145 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-02 20:42:26,146 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-02 20:42:26,146 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-02 20:42:26,148 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_e7a1cd6b-2ad4-48c8-9f51-b49c53810879/bin/uautomizer-Dbtcem3rbc/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7a1cd6b-2ad4-48c8-9f51-b49c53810879/bin/uautomizer-Dbtcem3rbc Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c03aa9fd4feebd47970076773e3fcb11c7b82646fa9d57d8ea4dde0614545dfa [2022-11-02 20:42:26,486 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-02 20:42:26,511 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-02 20:42:26,514 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-02 20:42:26,516 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-02 20:42:26,517 INFO L275 PluginConnector]: CDTParser initialized [2022-11-02 20:42:26,518 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7a1cd6b-2ad4-48c8-9f51-b49c53810879/bin/uautomizer-Dbtcem3rbc/../../sv-benchmarks/c/ldv-memsafety/memleaks_test20-2.i [2022-11-02 20:42:26,623 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7a1cd6b-2ad4-48c8-9f51-b49c53810879/bin/uautomizer-Dbtcem3rbc/data/7fd9be877/ab34d559407a43b2a2e7bc9c9d8fbba0/FLAG97ca2beb9 [2022-11-02 20:42:27,431 INFO L306 CDTParser]: Found 1 translation units. [2022-11-02 20:42:27,436 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7a1cd6b-2ad4-48c8-9f51-b49c53810879/sv-benchmarks/c/ldv-memsafety/memleaks_test20-2.i [2022-11-02 20:42:27,475 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7a1cd6b-2ad4-48c8-9f51-b49c53810879/bin/uautomizer-Dbtcem3rbc/data/7fd9be877/ab34d559407a43b2a2e7bc9c9d8fbba0/FLAG97ca2beb9 [2022-11-02 20:42:27,646 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7a1cd6b-2ad4-48c8-9f51-b49c53810879/bin/uautomizer-Dbtcem3rbc/data/7fd9be877/ab34d559407a43b2a2e7bc9c9d8fbba0 [2022-11-02 20:42:27,652 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-02 20:42:27,654 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-02 20:42:27,656 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-02 20:42:27,657 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-02 20:42:27,662 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-02 20:42:27,663 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 08:42:27" (1/1) ... [2022-11-02 20:42:27,664 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4769908f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:42:27, skipping insertion in model container [2022-11-02 20:42:27,665 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 08:42:27" (1/1) ... [2022-11-02 20:42:27,675 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-02 20:42:27,720 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-02 20:42:28,290 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 20:42:28,311 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) [2022-11-02 20:42:28,312 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@3ec946c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:42:28, skipping insertion in model container [2022-11-02 20:42:28,312 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-02 20:42:28,312 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2022-11-02 20:42:28,315 INFO L158 Benchmark]: Toolchain (without parser) took 659.26ms. Allocated memory is still 127.9MB. Free memory was 87.0MB in the beginning and 97.4MB in the end (delta: -10.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-02 20:42:28,315 INFO L158 Benchmark]: CDTParser took 0.34ms. Allocated memory is still 127.9MB. Free memory is still 105.6MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-02 20:42:28,316 INFO L158 Benchmark]: CACSL2BoogieTranslator took 655.77ms. Allocated memory is still 127.9MB. Free memory was 86.8MB in the beginning and 97.4MB in the end (delta: -10.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-02 20:42:28,318 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34ms. Allocated memory is still 127.9MB. Free memory is still 105.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 655.77ms. Allocated memory is still 127.9MB. Free memory was 86.8MB in the beginning and 97.4MB in the end (delta: -10.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 576]: 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_e7a1cd6b-2ad4-48c8-9f51-b49c53810879/bin/uautomizer-Dbtcem3rbc/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7a1cd6b-2ad4-48c8-9f51-b49c53810879/bin/uautomizer-Dbtcem3rbc/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7a1cd6b-2ad4-48c8-9f51-b49c53810879/bin/uautomizer-Dbtcem3rbc/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7a1cd6b-2ad4-48c8-9f51-b49c53810879/bin/uautomizer-Dbtcem3rbc/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-memsafety/memleaks_test20-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7a1cd6b-2ad4-48c8-9f51-b49c53810879/bin/uautomizer-Dbtcem3rbc/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7a1cd6b-2ad4-48c8-9f51-b49c53810879/bin/uautomizer-Dbtcem3rbc --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 c03aa9fd4feebd47970076773e3fcb11c7b82646fa9d57d8ea4dde0614545dfa --- 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-5e519f3 [2022-11-02 20:42:31,015 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-02 20:42:31,019 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-02 20:42:31,082 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-02 20:42:31,083 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-02 20:42:31,089 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-02 20:42:31,091 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-02 20:42:31,093 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-02 20:42:31,095 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-02 20:42:31,097 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-02 20:42:31,098 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-02 20:42:31,100 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-02 20:42:31,103 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-02 20:42:31,104 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-02 20:42:31,109 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-02 20:42:31,111 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-02 20:42:31,113 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-02 20:42:31,121 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-02 20:42:31,123 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-02 20:42:31,146 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-02 20:42:31,148 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-02 20:42:31,150 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-02 20:42:31,151 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-02 20:42:31,152 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-02 20:42:31,162 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-02 20:42:31,162 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-02 20:42:31,167 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-02 20:42:31,168 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-02 20:42:31,169 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-02 20:42:31,170 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-02 20:42:31,172 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-02 20:42:31,173 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-02 20:42:31,175 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-02 20:42:31,177 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-02 20:42:31,179 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-02 20:42:31,179 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-02 20:42:31,181 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-02 20:42:31,181 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-02 20:42:31,182 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-02 20:42:31,184 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-02 20:42:31,185 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-02 20:42:31,186 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7a1cd6b-2ad4-48c8-9f51-b49c53810879/bin/uautomizer-Dbtcem3rbc/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2022-11-02 20:42:31,238 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-02 20:42:31,238 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-02 20:42:31,240 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-02 20:42:31,240 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-02 20:42:31,242 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-02 20:42:31,242 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-02 20:42:31,244 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-02 20:42:31,244 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-02 20:42:31,245 INFO L138 SettingsManager]: * Use SBE=true [2022-11-02 20:42:31,245 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-02 20:42:31,247 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-02 20:42:31,247 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-02 20:42:31,247 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-02 20:42:31,248 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-02 20:42:31,248 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-02 20:42:31,248 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-11-02 20:42:31,248 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-11-02 20:42:31,249 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-11-02 20:42:31,249 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-02 20:42:31,249 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-02 20:42:31,250 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-02 20:42:31,250 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-02 20:42:31,250 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-02 20:42:31,251 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-02 20:42:31,251 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-02 20:42:31,251 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-02 20:42:31,252 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-02 20:42:31,252 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-02 20:42:31,252 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-02 20:42:31,252 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-02 20:42:31,253 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-11-02 20:42:31,257 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-02 20:42:31,258 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-02 20:42:31,258 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_e7a1cd6b-2ad4-48c8-9f51-b49c53810879/bin/uautomizer-Dbtcem3rbc/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7a1cd6b-2ad4-48c8-9f51-b49c53810879/bin/uautomizer-Dbtcem3rbc Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c03aa9fd4feebd47970076773e3fcb11c7b82646fa9d57d8ea4dde0614545dfa [2022-11-02 20:42:31,762 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-02 20:42:31,800 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-02 20:42:31,804 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-02 20:42:31,806 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-02 20:42:31,809 INFO L275 PluginConnector]: CDTParser initialized [2022-11-02 20:42:31,811 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7a1cd6b-2ad4-48c8-9f51-b49c53810879/bin/uautomizer-Dbtcem3rbc/../../sv-benchmarks/c/ldv-memsafety/memleaks_test20-2.i [2022-11-02 20:42:31,905 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7a1cd6b-2ad4-48c8-9f51-b49c53810879/bin/uautomizer-Dbtcem3rbc/data/ba6587551/0a0025ff7fdf4647a4ccddd985ff3559/FLAG3c771431e [2022-11-02 20:42:32,764 INFO L306 CDTParser]: Found 1 translation units. [2022-11-02 20:42:32,765 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7a1cd6b-2ad4-48c8-9f51-b49c53810879/sv-benchmarks/c/ldv-memsafety/memleaks_test20-2.i [2022-11-02 20:42:32,807 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7a1cd6b-2ad4-48c8-9f51-b49c53810879/bin/uautomizer-Dbtcem3rbc/data/ba6587551/0a0025ff7fdf4647a4ccddd985ff3559/FLAG3c771431e [2022-11-02 20:42:32,967 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7a1cd6b-2ad4-48c8-9f51-b49c53810879/bin/uautomizer-Dbtcem3rbc/data/ba6587551/0a0025ff7fdf4647a4ccddd985ff3559 [2022-11-02 20:42:32,970 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-02 20:42:32,972 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-02 20:42:32,973 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-02 20:42:32,974 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-02 20:42:32,984 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-02 20:42:32,985 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 08:42:32" (1/1) ... [2022-11-02 20:42:32,986 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@522b21e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:42:32, skipping insertion in model container [2022-11-02 20:42:32,987 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 08:42:32" (1/1) ... [2022-11-02 20:42:32,996 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-02 20:42:33,071 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-02 20:42:33,665 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 20:42:33,700 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-11-02 20:42:33,724 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-02 20:42:33,825 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 20:42:33,839 INFO L203 MainTranslator]: Completed pre-run [2022-11-02 20:42:33,893 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 20:42:33,942 INFO L208 MainTranslator]: Completed translation [2022-11-02 20:42:33,942 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:42:33 WrapperNode [2022-11-02 20:42:33,943 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-02 20:42:33,949 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-02 20:42:33,949 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-02 20:42:33,950 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-02 20:42:33,959 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:42:33" (1/1) ... [2022-11-02 20:42:34,007 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:42:33" (1/1) ... [2022-11-02 20:42:34,052 INFO L138 Inliner]: procedures = 170, calls = 73, calls flagged for inlining = 25, calls inlined = 7, statements flattened = 34 [2022-11-02 20:42:34,053 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-02 20:42:34,054 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-02 20:42:34,054 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-02 20:42:34,054 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-02 20:42:34,070 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:42:33" (1/1) ... [2022-11-02 20:42:34,071 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:42:33" (1/1) ... [2022-11-02 20:42:34,091 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:42:33" (1/1) ... [2022-11-02 20:42:34,092 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:42:33" (1/1) ... [2022-11-02 20:42:34,099 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:42:33" (1/1) ... [2022-11-02 20:42:34,102 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:42:33" (1/1) ... [2022-11-02 20:42:34,104 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:42:33" (1/1) ... [2022-11-02 20:42:34,125 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:42:33" (1/1) ... [2022-11-02 20:42:34,128 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-02 20:42:34,129 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-02 20:42:34,129 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-02 20:42:34,130 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-02 20:42:34,131 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:42:33" (1/1) ... [2022-11-02 20:42:34,142 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-02 20:42:34,155 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7a1cd6b-2ad4-48c8-9f51-b49c53810879/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:42:34,173 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7a1cd6b-2ad4-48c8-9f51-b49c53810879/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-02 20:42:34,204 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7a1cd6b-2ad4-48c8-9f51-b49c53810879/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-02 20:42:34,245 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-02 20:42:34,245 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-02 20:42:34,245 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-02 20:42:34,245 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-02 20:42:34,246 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-02 20:42:34,246 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-02 20:42:34,246 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-02 20:42:34,246 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-02 20:42:34,441 INFO L235 CfgBuilder]: Building ICFG [2022-11-02 20:42:34,443 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-02 20:42:34,664 INFO L276 CfgBuilder]: Performing block encoding [2022-11-02 20:42:34,672 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-02 20:42:34,672 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-02 20:42:34,675 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:42:34 BoogieIcfgContainer [2022-11-02 20:42:34,675 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-02 20:42:34,678 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-02 20:42:34,679 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-02 20:42:34,683 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-02 20:42:34,683 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 08:42:32" (1/3) ... [2022-11-02 20:42:34,684 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38a59115 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 08:42:34, skipping insertion in model container [2022-11-02 20:42:34,684 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:42:33" (2/3) ... [2022-11-02 20:42:34,685 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38a59115 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 08:42:34, skipping insertion in model container [2022-11-02 20:42:34,685 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:42:34" (3/3) ... [2022-11-02 20:42:34,687 INFO L112 eAbstractionObserver]: Analyzing ICFG memleaks_test20-2.i [2022-11-02 20:42:34,727 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-02 20:42:34,727 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2022-11-02 20:42:34,831 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-02 20:42:34,845 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;@234c79eb, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-02 20:42:34,846 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-11-02 20:42:34,863 INFO L276 IsEmpty]: Start isEmpty. Operand has 25 states, 18 states have (on average 1.3888888888888888) internal successors, (25), 22 states have internal predecessors, (25), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-02 20:42:34,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-11-02 20:42:34,877 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:42:34,879 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:42:34,879 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_FREE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE (and 1 more)] === [2022-11-02 20:42:34,894 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:42:34,894 INFO L85 PathProgramCache]: Analyzing trace with hash 320838968, now seen corresponding path program 1 times [2022-11-02 20:42:34,912 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 20:42:34,913 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1865027356] [2022-11-02 20:42:34,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:42:34,914 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 20:42:34,914 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7a1cd6b-2ad4-48c8-9f51-b49c53810879/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 20:42:34,925 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7a1cd6b-2ad4-48c8-9f51-b49c53810879/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 20:42:34,964 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7a1cd6b-2ad4-48c8-9f51-b49c53810879/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-11-02 20:42:35,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:42:35,130 INFO L263 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-02 20:42:35,137 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:42:35,237 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:42:35,238 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 20:42:35,239 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 20:42:35,239 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1865027356] [2022-11-02 20:42:35,240 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1865027356] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:42:35,240 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:42:35,241 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 20:42:35,243 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1669199030] [2022-11-02 20:42:35,244 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:42:35,250 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-02 20:42:35,250 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 20:42:35,298 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-02 20:42:35,299 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-02 20:42:35,301 INFO L87 Difference]: Start difference. First operand has 25 states, 18 states have (on average 1.3888888888888888) internal successors, (25), 22 states have internal predecessors, (25), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Second operand has 5 states, 5 states have (on average 2.2) internal successors, (11), 4 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-02 20:42:35,422 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:42:35,425 INFO L93 Difference]: Finished difference Result 45 states and 47 transitions. [2022-11-02 20:42:35,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-02 20:42:35,430 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.2) internal successors, (11), 4 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 13 [2022-11-02 20:42:35,431 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:42:35,442 INFO L225 Difference]: With dead ends: 45 [2022-11-02 20:42:35,442 INFO L226 Difference]: Without dead ends: 41 [2022-11-02 20:42:35,451 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-02 20:42:35,462 INFO L413 NwaCegarLoop]: 40 mSDtfsCounter, 17 mSDsluCounter, 99 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 139 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-02 20:42:35,465 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 139 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-02 20:42:35,498 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2022-11-02 20:42:35,520 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 27. [2022-11-02 20:42:35,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 20 states have (on average 1.3) internal successors, (26), 23 states have internal predecessors, (26), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-02 20:42:35,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 29 transitions. [2022-11-02 20:42:35,527 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 29 transitions. Word has length 13 [2022-11-02 20:42:35,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:42:35,528 INFO L495 AbstractCegarLoop]: Abstraction has 27 states and 29 transitions. [2022-11-02 20:42:35,528 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.2) internal successors, (11), 4 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-02 20:42:35,529 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 29 transitions. [2022-11-02 20:42:35,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-11-02 20:42:35,530 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:42:35,531 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:42:35,552 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7a1cd6b-2ad4-48c8-9f51-b49c53810879/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-11-02 20:42:35,746 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7a1cd6b-2ad4-48c8-9f51-b49c53810879/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 20:42:35,746 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_FREE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE (and 1 more)] === [2022-11-02 20:42:35,747 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:42:35,747 INFO L85 PathProgramCache]: Analyzing trace with hash -1486615495, now seen corresponding path program 1 times [2022-11-02 20:42:35,748 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 20:42:35,748 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2105268722] [2022-11-02 20:42:35,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:42:35,749 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 20:42:35,749 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7a1cd6b-2ad4-48c8-9f51-b49c53810879/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 20:42:35,752 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7a1cd6b-2ad4-48c8-9f51-b49c53810879/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 20:42:35,765 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7a1cd6b-2ad4-48c8-9f51-b49c53810879/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-11-02 20:42:35,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:42:35,869 INFO L263 TraceCheckSpWp]: Trace formula consists of 44 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-02 20:42:35,872 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:42:36,082 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:42:36,082 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 20:42:36,083 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 20:42:36,083 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2105268722] [2022-11-02 20:42:36,083 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2105268722] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:42:36,084 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:42:36,084 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-02 20:42:36,084 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1324354559] [2022-11-02 20:42:36,085 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:42:36,086 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-02 20:42:36,087 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 20:42:36,087 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-02 20:42:36,088 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-02 20:42:36,088 INFO L87 Difference]: Start difference. First operand 27 states and 29 transitions. Second operand has 5 states, 5 states have (on average 2.2) internal successors, (11), 4 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-02 20:42:36,197 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:42:36,198 INFO L93 Difference]: Finished difference Result 38 states and 38 transitions. [2022-11-02 20:42:36,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-02 20:42:36,200 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.2) internal successors, (11), 4 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 13 [2022-11-02 20:42:36,204 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:42:36,207 INFO L225 Difference]: With dead ends: 38 [2022-11-02 20:42:36,207 INFO L226 Difference]: Without dead ends: 38 [2022-11-02 20:42:36,208 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-02 20:42:36,212 INFO L413 NwaCegarLoop]: 22 mSDtfsCounter, 22 mSDsluCounter, 54 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 76 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-02 20:42:36,216 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 76 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-02 20:42:36,217 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2022-11-02 20:42:36,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 30. [2022-11-02 20:42:36,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 23 states have (on average 1.2608695652173914) internal successors, (29), 26 states have internal predecessors, (29), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-02 20:42:36,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 32 transitions. [2022-11-02 20:42:36,226 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 32 transitions. Word has length 13 [2022-11-02 20:42:36,227 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:42:36,227 INFO L495 AbstractCegarLoop]: Abstraction has 30 states and 32 transitions. [2022-11-02 20:42:36,227 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.2) internal successors, (11), 4 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-02 20:42:36,227 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 32 transitions. [2022-11-02 20:42:36,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-11-02 20:42:36,229 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:42:36,230 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:42:36,249 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7a1cd6b-2ad4-48c8-9f51-b49c53810879/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-11-02 20:42:36,444 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7a1cd6b-2ad4-48c8-9f51-b49c53810879/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 20:42:36,445 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_FREE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE (and 1 more)] === [2022-11-02 20:42:36,445 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:42:36,446 INFO L85 PathProgramCache]: Analyzing trace with hash 1237800257, now seen corresponding path program 1 times [2022-11-02 20:42:36,446 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 20:42:36,447 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [268636034] [2022-11-02 20:42:36,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:42:36,447 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 20:42:36,447 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7a1cd6b-2ad4-48c8-9f51-b49c53810879/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 20:42:36,459 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7a1cd6b-2ad4-48c8-9f51-b49c53810879/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 20:42:36,477 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7a1cd6b-2ad4-48c8-9f51-b49c53810879/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-11-02 20:42:36,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:42:36,552 INFO L263 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 11 conjunts are in the unsatisfiable core [2022-11-02 20:42:36,555 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:42:36,672 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:42:36,672 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 20:42:36,673 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 20:42:36,673 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [268636034] [2022-11-02 20:42:36,673 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [268636034] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:42:36,674 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:42:36,674 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-02 20:42:36,674 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1464712347] [2022-11-02 20:42:36,674 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:42:36,675 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-02 20:42:36,675 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 20:42:36,676 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-02 20:42:36,676 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-11-02 20:42:36,677 INFO L87 Difference]: Start difference. First operand 30 states and 32 transitions. Second operand has 9 states, 8 states have (on average 1.5) internal successors, (12), 8 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-02 20:42:36,885 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:42:36,886 INFO L93 Difference]: Finished difference Result 33 states and 33 transitions. [2022-11-02 20:42:36,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-02 20:42:36,886 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 1.5) internal successors, (12), 8 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 14 [2022-11-02 20:42:36,887 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:42:36,891 INFO L225 Difference]: With dead ends: 33 [2022-11-02 20:42:36,891 INFO L226 Difference]: Without dead ends: 33 [2022-11-02 20:42:36,893 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=50, Invalid=132, Unknown=0, NotChecked=0, Total=182 [2022-11-02 20:42:36,898 INFO L413 NwaCegarLoop]: 22 mSDtfsCounter, 50 mSDsluCounter, 97 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 119 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-02 20:42:36,899 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 119 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-02 20:42:36,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2022-11-02 20:42:36,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 29. [2022-11-02 20:42:36,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 23 states have (on average 1.173913043478261) internal successors, (27), 25 states have internal predecessors, (27), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-02 20:42:36,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 30 transitions. [2022-11-02 20:42:36,904 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 30 transitions. Word has length 14 [2022-11-02 20:42:36,904 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:42:36,904 INFO L495 AbstractCegarLoop]: Abstraction has 29 states and 30 transitions. [2022-11-02 20:42:36,905 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 1.5) internal successors, (12), 8 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-02 20:42:36,905 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 30 transitions. [2022-11-02 20:42:36,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-11-02 20:42:36,909 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:42:36,910 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:42:36,930 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7a1cd6b-2ad4-48c8-9f51-b49c53810879/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (4)] Ended with exit code 0 [2022-11-02 20:42:37,124 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7a1cd6b-2ad4-48c8-9f51-b49c53810879/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 20:42:37,125 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_FREE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE (and 1 more)] === [2022-11-02 20:42:37,125 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:42:37,126 INFO L85 PathProgramCache]: Analyzing trace with hash -282897639, now seen corresponding path program 1 times [2022-11-02 20:42:37,126 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 20:42:37,126 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2087352046] [2022-11-02 20:42:37,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:42:37,127 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 20:42:37,127 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7a1cd6b-2ad4-48c8-9f51-b49c53810879/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 20:42:37,136 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7a1cd6b-2ad4-48c8-9f51-b49c53810879/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 20:42:37,140 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7a1cd6b-2ad4-48c8-9f51-b49c53810879/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-11-02 20:42:37,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:42:37,236 INFO L263 TraceCheckSpWp]: Trace formula consists of 57 conjuncts, 13 conjunts are in the unsatisfiable core [2022-11-02 20:42:37,238 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:42:37,523 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:42:37,523 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 20:42:37,523 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 20:42:37,523 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2087352046] [2022-11-02 20:42:37,524 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2087352046] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:42:37,524 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:42:37,524 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-02 20:42:37,524 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [298159003] [2022-11-02 20:42:37,524 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:42:37,525 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-02 20:42:37,525 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 20:42:37,525 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-02 20:42:37,526 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2022-11-02 20:42:37,526 INFO L87 Difference]: Start difference. First operand 29 states and 30 transitions. Second operand has 10 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 8 states have internal predecessors, (13), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-02 20:42:38,038 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:42:38,039 INFO L93 Difference]: Finished difference Result 41 states and 41 transitions. [2022-11-02 20:42:38,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-02 20:42:38,039 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 8 states have internal predecessors, (13), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 15 [2022-11-02 20:42:38,040 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:42:38,040 INFO L225 Difference]: With dead ends: 41 [2022-11-02 20:42:38,040 INFO L226 Difference]: Without dead ends: 41 [2022-11-02 20:42:38,041 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=64, Invalid=146, Unknown=0, NotChecked=0, Total=210 [2022-11-02 20:42:38,042 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 67 mSDsluCounter, 98 mSDsCounter, 0 mSdLazyCounter, 95 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 117 SdHoareTripleChecker+Invalid, 96 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 95 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-02 20:42:38,042 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [68 Valid, 117 Invalid, 96 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 95 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-02 20:42:38,043 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2022-11-02 20:42:38,046 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 35. [2022-11-02 20:42:38,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 29 states have (on average 1.1379310344827587) internal successors, (33), 31 states have internal predecessors, (33), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-02 20:42:38,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 36 transitions. [2022-11-02 20:42:38,047 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 36 transitions. Word has length 15 [2022-11-02 20:42:38,048 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:42:38,048 INFO L495 AbstractCegarLoop]: Abstraction has 35 states and 36 transitions. [2022-11-02 20:42:38,048 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 8 states have internal predecessors, (13), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-02 20:42:38,048 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 36 transitions. [2022-11-02 20:42:38,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-11-02 20:42:38,049 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:42:38,049 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:42:38,070 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7a1cd6b-2ad4-48c8-9f51-b49c53810879/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2022-11-02 20:42:38,250 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7a1cd6b-2ad4-48c8-9f51-b49c53810879/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 20:42:38,250 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE (and 1 more)] === [2022-11-02 20:42:38,251 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:42:38,251 INFO L85 PathProgramCache]: Analyzing trace with hash 1586867004, now seen corresponding path program 1 times [2022-11-02 20:42:38,251 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 20:42:38,251 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1248619602] [2022-11-02 20:42:38,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:42:38,252 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 20:42:38,252 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7a1cd6b-2ad4-48c8-9f51-b49c53810879/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 20:42:38,253 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7a1cd6b-2ad4-48c8-9f51-b49c53810879/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 20:42:38,259 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7a1cd6b-2ad4-48c8-9f51-b49c53810879/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-11-02 20:42:38,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:42:38,320 INFO L263 TraceCheckSpWp]: Trace formula consists of 44 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-02 20:42:38,338 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:42:38,378 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:42:38,378 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 20:42:38,379 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 20:42:38,379 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1248619602] [2022-11-02 20:42:38,379 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1248619602] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:42:38,379 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:42:38,379 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-02 20:42:38,380 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1880843646] [2022-11-02 20:42:38,380 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:42:38,380 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-02 20:42:38,381 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 20:42:38,381 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-02 20:42:38,381 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-02 20:42:38,382 INFO L87 Difference]: Start difference. First operand 35 states and 36 transitions. Second operand has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-02 20:42:38,417 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:42:38,418 INFO L93 Difference]: Finished difference Result 40 states and 40 transitions. [2022-11-02 20:42:38,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-02 20:42:38,419 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 15 [2022-11-02 20:42:38,419 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:42:38,419 INFO L225 Difference]: With dead ends: 40 [2022-11-02 20:42:38,420 INFO L226 Difference]: Without dead ends: 34 [2022-11-02 20:42:38,420 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-02 20:42:38,421 INFO L413 NwaCegarLoop]: 30 mSDtfsCounter, 7 mSDsluCounter, 35 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 65 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-02 20:42:38,422 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 65 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-02 20:42:38,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2022-11-02 20:42:38,426 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 32. [2022-11-02 20:42:38,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 26 states have (on average 1.1153846153846154) internal successors, (29), 28 states have internal predecessors, (29), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-02 20:42:38,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 32 transitions. [2022-11-02 20:42:38,427 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 32 transitions. Word has length 15 [2022-11-02 20:42:38,428 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:42:38,428 INFO L495 AbstractCegarLoop]: Abstraction has 32 states and 32 transitions. [2022-11-02 20:42:38,428 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-02 20:42:38,428 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 32 transitions. [2022-11-02 20:42:38,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-11-02 20:42:38,429 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:42:38,429 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:42:38,450 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7a1cd6b-2ad4-48c8-9f51-b49c53810879/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2022-11-02 20:42:38,643 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7a1cd6b-2ad4-48c8-9f51-b49c53810879/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 20:42:38,644 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_FREE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE (and 1 more)] === [2022-11-02 20:42:38,644 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:42:38,644 INFO L85 PathProgramCache]: Analyzing trace with hash -2079848998, now seen corresponding path program 1 times [2022-11-02 20:42:38,644 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 20:42:38,645 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [210318725] [2022-11-02 20:42:38,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:42:38,645 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 20:42:38,645 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7a1cd6b-2ad4-48c8-9f51-b49c53810879/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 20:42:38,647 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7a1cd6b-2ad4-48c8-9f51-b49c53810879/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 20:42:38,649 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7a1cd6b-2ad4-48c8-9f51-b49c53810879/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2022-11-02 20:42:38,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:42:38,714 INFO L263 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-02 20:42:38,716 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:42:38,792 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:42:38,792 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 20:42:38,792 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 20:42:38,792 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [210318725] [2022-11-02 20:42:38,793 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [210318725] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:42:38,793 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:42:38,793 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 20:42:38,793 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1765858558] [2022-11-02 20:42:38,794 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:42:38,794 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-02 20:42:38,794 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 20:42:38,795 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-02 20:42:38,795 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-02 20:42:38,795 INFO L87 Difference]: Start difference. First operand 32 states and 32 transitions. Second operand has 5 states, 5 states have (on average 2.6) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-02 20:42:38,817 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:42:38,817 INFO L93 Difference]: Finished difference Result 25 states and 24 transitions. [2022-11-02 20:42:38,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-02 20:42:38,819 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.6) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 15 [2022-11-02 20:42:38,819 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:42:38,819 INFO L225 Difference]: With dead ends: 25 [2022-11-02 20:42:38,820 INFO L226 Difference]: Without dead ends: 21 [2022-11-02 20:42:38,820 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-02 20:42:38,821 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 0 mSDsluCounter, 59 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 82 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-02 20:42:38,821 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 82 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-02 20:42:38,822 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2022-11-02 20:42:38,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2022-11-02 20:42:38,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 17 states have (on average 1.0588235294117647) internal successors, (18), 18 states have internal predecessors, (18), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-02 20:42:38,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 20 transitions. [2022-11-02 20:42:38,825 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 20 transitions. Word has length 15 [2022-11-02 20:42:38,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:42:38,826 INFO L495 AbstractCegarLoop]: Abstraction has 21 states and 20 transitions. [2022-11-02 20:42:38,826 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.6) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-02 20:42:38,826 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 20 transitions. [2022-11-02 20:42:38,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-11-02 20:42:38,827 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:42:38,827 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:42:38,848 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7a1cd6b-2ad4-48c8-9f51-b49c53810879/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2022-11-02 20:42:39,048 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7a1cd6b-2ad4-48c8-9f51-b49c53810879/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 20:42:39,048 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE (and 1 more)] === [2022-11-02 20:42:39,049 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:42:39,049 INFO L85 PathProgramCache]: Analyzing trace with hash -179892157, now seen corresponding path program 1 times [2022-11-02 20:42:39,049 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 20:42:39,049 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [525207706] [2022-11-02 20:42:39,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:42:39,050 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 20:42:39,050 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7a1cd6b-2ad4-48c8-9f51-b49c53810879/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 20:42:39,051 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7a1cd6b-2ad4-48c8-9f51-b49c53810879/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 20:42:39,054 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7a1cd6b-2ad4-48c8-9f51-b49c53810879/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2022-11-02 20:42:39,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:42:39,167 INFO L263 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 12 conjunts are in the unsatisfiable core [2022-11-02 20:42:39,172 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:42:39,219 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 0 case distinctions, treesize of input 6 treesize of output 7 [2022-11-02 20:42:39,366 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:42:39,366 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 20:42:39,367 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 20:42:39,367 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [525207706] [2022-11-02 20:42:39,367 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [525207706] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:42:39,367 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:42:39,367 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-02 20:42:39,368 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [299095492] [2022-11-02 20:42:39,368 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:42:39,369 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-02 20:42:39,369 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 20:42:39,370 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-02 20:42:39,370 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-11-02 20:42:39,370 INFO L87 Difference]: Start difference. First operand 21 states and 20 transitions. Second operand has 9 states, 8 states have (on average 1.75) internal successors, (14), 8 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-02 20:42:39,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:42:39,585 INFO L93 Difference]: Finished difference Result 20 states and 19 transitions. [2022-11-02 20:42:39,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-02 20:42:39,587 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 1.75) internal successors, (14), 8 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 16 [2022-11-02 20:42:39,588 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:42:39,588 INFO L225 Difference]: With dead ends: 20 [2022-11-02 20:42:39,588 INFO L226 Difference]: Without dead ends: 20 [2022-11-02 20:42:39,589 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2022-11-02 20:42:39,589 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 19 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 52 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-02 20:42:39,590 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 52 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-02 20:42:39,591 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2022-11-02 20:42:39,592 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2022-11-02 20:42:39,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 17 states have (on average 1.0) internal successors, (17), 17 states have internal predecessors, (17), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-02 20:42:39,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 19 transitions. [2022-11-02 20:42:39,593 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 19 transitions. Word has length 16 [2022-11-02 20:42:39,593 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:42:39,593 INFO L495 AbstractCegarLoop]: Abstraction has 20 states and 19 transitions. [2022-11-02 20:42:39,594 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 1.75) internal successors, (14), 8 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-02 20:42:39,594 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 19 transitions. [2022-11-02 20:42:39,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-11-02 20:42:39,594 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:42:39,595 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:42:39,609 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7a1cd6b-2ad4-48c8-9f51-b49c53810879/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2022-11-02 20:42:39,795 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7a1cd6b-2ad4-48c8-9f51-b49c53810879/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 20:42:39,796 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE (and 1 more)] === [2022-11-02 20:42:39,796 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:42:39,796 INFO L85 PathProgramCache]: Analyzing trace with hash 951999840, now seen corresponding path program 1 times [2022-11-02 20:42:39,797 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-02 20:42:39,797 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [415672591] [2022-11-02 20:42:39,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:42:39,797 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-02 20:42:39,798 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7a1cd6b-2ad4-48c8-9f51-b49c53810879/bin/uautomizer-Dbtcem3rbc/mathsat [2022-11-02 20:42:39,799 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7a1cd6b-2ad4-48c8-9f51-b49c53810879/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-02 20:42:39,802 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7a1cd6b-2ad4-48c8-9f51-b49c53810879/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2022-11-02 20:42:39,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:42:39,885 INFO L263 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 17 conjunts are in the unsatisfiable core [2022-11-02 20:42:39,891 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:42:40,313 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:42:40,313 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 20:42:40,313 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-02 20:42:40,313 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [415672591] [2022-11-02 20:42:40,314 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [415672591] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:42:40,314 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:42:40,314 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-02 20:42:40,314 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [953009761] [2022-11-02 20:42:40,314 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:42:40,314 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-02 20:42:40,315 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-02 20:42:40,315 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-02 20:42:40,315 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=110, Unknown=0, NotChecked=0, Total=132 [2022-11-02 20:42:40,315 INFO L87 Difference]: Start difference. First operand 20 states and 19 transitions. Second operand has 12 states, 10 states have (on average 1.7) internal successors, (17), 11 states have internal predecessors, (17), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-02 20:42:40,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:42:40,340 INFO L93 Difference]: Finished difference Result 19 states and 18 transitions. [2022-11-02 20:42:40,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-02 20:42:40,342 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 10 states have (on average 1.7) internal successors, (17), 11 states have internal predecessors, (17), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 19 [2022-11-02 20:42:40,342 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:42:40,342 INFO L225 Difference]: With dead ends: 19 [2022-11-02 20:42:40,342 INFO L226 Difference]: Without dead ends: 0 [2022-11-02 20:42:40,343 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=22, Invalid=110, Unknown=0, NotChecked=0, Total=132 [2022-11-02 20:42:40,344 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 2 mSDsluCounter, 47 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 56 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 37 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-02 20:42:40,345 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 56 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 37 Unchecked, 0.0s Time] [2022-11-02 20:42:40,346 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-02 20:42:40,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-02 20:42:40,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 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) [2022-11-02 20:42:40,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-02 20:42:40,347 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 19 [2022-11-02 20:42:40,347 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:42:40,347 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-02 20:42:40,348 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 10 states have (on average 1.7) internal successors, (17), 11 states have internal predecessors, (17), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-02 20:42:40,348 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-02 20:42:40,348 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-02 20:42:40,351 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_FREE (3 of 4 remaining) [2022-11-02 20:42:40,352 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_FREE (2 of 4 remaining) [2022-11-02 20:42:40,352 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE (1 of 4 remaining) [2022-11-02 20:42:40,353 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK (0 of 4 remaining) [2022-11-02 20:42:40,368 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7a1cd6b-2ad4-48c8-9f51-b49c53810879/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (9)] Ended with exit code 0 [2022-11-02 20:42:40,568 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7a1cd6b-2ad4-48c8-9f51-b49c53810879/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 [2022-11-02 20:42:40,572 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:42:40,574 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-02 20:42:40,578 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.11 08:42:40 BoogieIcfgContainer [2022-11-02 20:42:40,578 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-02 20:42:40,579 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-02 20:42:40,579 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-02 20:42:40,579 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-02 20:42:40,580 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:42:34" (3/4) ... [2022-11-02 20:42:40,583 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-02 20:42:40,592 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_malloc [2022-11-02 20:42:40,599 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2022-11-02 20:42:40,599 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-11-02 20:42:40,600 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-02 20:42:40,639 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7a1cd6b-2ad4-48c8-9f51-b49c53810879/bin/uautomizer-Dbtcem3rbc/witness.graphml [2022-11-02 20:42:40,639 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-02 20:42:40,640 INFO L158 Benchmark]: Toolchain (without parser) took 7668.07ms. Allocated memory was 75.5MB in the beginning and 94.4MB in the end (delta: 18.9MB). Free memory was 54.1MB in the beginning and 42.7MB in the end (delta: 11.4MB). Peak memory consumption was 31.7MB. Max. memory is 16.1GB. [2022-11-02 20:42:40,640 INFO L158 Benchmark]: CDTParser took 0.37ms. Allocated memory is still 75.5MB. Free memory is still 54.7MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-02 20:42:40,641 INFO L158 Benchmark]: CACSL2BoogieTranslator took 969.83ms. Allocated memory is still 75.5MB. Free memory was 53.8MB in the beginning and 39.7MB in the end (delta: 14.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-02 20:42:40,641 INFO L158 Benchmark]: Boogie Procedure Inliner took 103.95ms. Allocated memory is still 75.5MB. Free memory was 39.7MB in the beginning and 37.3MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-02 20:42:40,642 INFO L158 Benchmark]: Boogie Preprocessor took 74.85ms. Allocated memory is still 75.5MB. Free memory was 37.3MB in the beginning and 35.8MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-02 20:42:40,642 INFO L158 Benchmark]: RCFGBuilder took 546.31ms. Allocated memory is still 75.5MB. Free memory was 35.8MB in the beginning and 49.0MB in the end (delta: -13.2MB). Peak memory consumption was 8.0MB. Max. memory is 16.1GB. [2022-11-02 20:42:40,643 INFO L158 Benchmark]: TraceAbstraction took 5899.52ms. Allocated memory was 75.5MB in the beginning and 94.4MB in the end (delta: 18.9MB). Free memory was 48.3MB in the beginning and 45.5MB in the end (delta: 2.7MB). Peak memory consumption was 20.2MB. Max. memory is 16.1GB. [2022-11-02 20:42:40,643 INFO L158 Benchmark]: Witness Printer took 60.91ms. Allocated memory is still 94.4MB. Free memory was 44.8MB in the beginning and 42.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-02 20:42:40,645 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.37ms. Allocated memory is still 75.5MB. Free memory is still 54.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 969.83ms. Allocated memory is still 75.5MB. Free memory was 53.8MB in the beginning and 39.7MB in the end (delta: 14.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 103.95ms. Allocated memory is still 75.5MB. Free memory was 39.7MB in the beginning and 37.3MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 74.85ms. Allocated memory is still 75.5MB. Free memory was 37.3MB in the beginning and 35.8MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 546.31ms. Allocated memory is still 75.5MB. Free memory was 35.8MB in the beginning and 49.0MB in the end (delta: -13.2MB). Peak memory consumption was 8.0MB. Max. memory is 16.1GB. * TraceAbstraction took 5899.52ms. Allocated memory was 75.5MB in the beginning and 94.4MB in the end (delta: 18.9MB). Free memory was 48.3MB in the beginning and 45.5MB in the end (delta: 2.7MB). Peak memory consumption was 20.2MB. Max. memory is 16.1GB. * Witness Printer took 60.91ms. Allocated memory is still 94.4MB. Free memory was 44.8MB in the beginning and 42.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: 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 - PositiveResult [Line: 781]: free always succeeds For all program executions holds that free always succeeds at this location - PositiveResult [Line: 781]: free always succeeds For all program executions holds that free always succeeds at this location - PositiveResult [Line: 781]: free always succeeds For all program executions holds that free always succeeds at this location - PositiveResult [Line: 789]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 25 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 5.8s, OverallIterations: 8, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 185 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 184 mSDsluCounter, 706 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 37 IncrementalHoareTripleChecker+Unchecked, 529 mSDsCounter, 7 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 274 IncrementalHoareTripleChecker+Invalid, 318 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 7 mSolverCounterUnsat, 177 mSDtfsCounter, 274 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 129 GetRequests, 69 SyntacticMatches, 0 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 1.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=35occurred in iteration=4, InterpolantAutomatonStates: 63, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 8 MinimizatonAttempts, 34 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.5s InterpolantComputationTime, 120 NumberOfCodeBlocks, 120 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 112 ConstructedInterpolants, 14 QuantifiedInterpolants, 576 SizeOfPredicates, 33 NumberOfNonLiveVariables, 425 ConjunctsInSsa, 75 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-11-02 20:42:40,698 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7a1cd6b-2ad4-48c8-9f51-b49c53810879/bin/uautomizer-Dbtcem3rbc/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 Result: TRUE