./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test3-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version dbf71c69 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34590f23-235d-4a3f-84f1-efadeed8a0eb/bin/uautomizer-J5u9QxTXDZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34590f23-235d-4a3f-84f1-efadeed8a0eb/bin/uautomizer-J5u9QxTXDZ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34590f23-235d-4a3f-84f1-efadeed8a0eb/bin/uautomizer-J5u9QxTXDZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34590f23-235d-4a3f-84f1-efadeed8a0eb/bin/uautomizer-J5u9QxTXDZ/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test3-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34590f23-235d-4a3f-84f1-efadeed8a0eb/bin/uautomizer-J5u9QxTXDZ/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34590f23-235d-4a3f-84f1-efadeed8a0eb/bin/uautomizer-J5u9QxTXDZ --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 2f1aaf5276e100f83cf10565e66c3b5d8c0baa3bbd1a1424b76fbee71241f226 --- 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-dbf71c6-m [2022-10-17 11:05:38,876 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-17 11:05:38,878 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-17 11:05:38,927 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-17 11:05:38,928 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-17 11:05:38,933 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-17 11:05:38,936 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-17 11:05:38,942 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-17 11:05:38,945 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-17 11:05:38,952 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-17 11:05:38,953 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-17 11:05:38,955 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-17 11:05:38,955 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-17 11:05:38,956 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-17 11:05:38,957 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-17 11:05:38,959 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-17 11:05:38,960 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-17 11:05:38,961 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-17 11:05:38,963 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-17 11:05:38,975 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-17 11:05:38,977 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-17 11:05:38,980 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-17 11:05:38,984 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-17 11:05:38,985 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-17 11:05:38,989 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-17 11:05:38,990 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-17 11:05:38,990 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-17 11:05:38,992 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-17 11:05:38,993 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-17 11:05:38,994 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-17 11:05:38,995 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-17 11:05:38,996 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-17 11:05:38,998 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-17 11:05:39,000 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-17 11:05:39,001 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-17 11:05:39,001 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-17 11:05:39,002 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-17 11:05:39,002 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-17 11:05:39,002 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-17 11:05:39,003 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-17 11:05:39,004 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-17 11:05:39,004 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34590f23-235d-4a3f-84f1-efadeed8a0eb/bin/uautomizer-J5u9QxTXDZ/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2022-10-17 11:05:39,053 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-17 11:05:39,053 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-17 11:05:39,054 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-17 11:05:39,054 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-17 11:05:39,055 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-17 11:05:39,055 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-17 11:05:39,056 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-17 11:05:39,056 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-17 11:05:39,056 INFO L138 SettingsManager]: * Use SBE=true [2022-10-17 11:05:39,057 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-17 11:05:39,058 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-17 11:05:39,058 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-17 11:05:39,058 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-17 11:05:39,058 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-17 11:05:39,059 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-17 11:05:39,059 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-10-17 11:05:39,059 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-10-17 11:05:39,068 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-10-17 11:05:39,068 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-17 11:05:39,069 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-10-17 11:05:39,069 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-17 11:05:39,069 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-17 11:05:39,069 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-17 11:05:39,070 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-17 11:05:39,070 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-17 11:05:39,070 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-17 11:05:39,070 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-17 11:05:39,071 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-17 11:05:39,071 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-17 11:05:39,071 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-17 11:05:39,073 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_34590f23-235d-4a3f-84f1-efadeed8a0eb/bin/uautomizer-J5u9QxTXDZ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34590f23-235d-4a3f-84f1-efadeed8a0eb/bin/uautomizer-J5u9QxTXDZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2f1aaf5276e100f83cf10565e66c3b5d8c0baa3bbd1a1424b76fbee71241f226 [2022-10-17 11:05:39,355 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-17 11:05:39,383 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-17 11:05:39,386 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-17 11:05:39,387 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-17 11:05:39,388 INFO L275 PluginConnector]: CDTParser initialized [2022-10-17 11:05:39,390 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34590f23-235d-4a3f-84f1-efadeed8a0eb/bin/uautomizer-J5u9QxTXDZ/../../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test3-1.i [2022-10-17 11:05:39,465 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34590f23-235d-4a3f-84f1-efadeed8a0eb/bin/uautomizer-J5u9QxTXDZ/data/b1c2e9069/bfa7c8cd7eee48faa6fff2684ced7194/FLAG5848d04fc [2022-10-17 11:05:40,104 INFO L306 CDTParser]: Found 1 translation units. [2022-10-17 11:05:40,105 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34590f23-235d-4a3f-84f1-efadeed8a0eb/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test3-1.i [2022-10-17 11:05:40,123 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34590f23-235d-4a3f-84f1-efadeed8a0eb/bin/uautomizer-J5u9QxTXDZ/data/b1c2e9069/bfa7c8cd7eee48faa6fff2684ced7194/FLAG5848d04fc [2022-10-17 11:05:40,301 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34590f23-235d-4a3f-84f1-efadeed8a0eb/bin/uautomizer-J5u9QxTXDZ/data/b1c2e9069/bfa7c8cd7eee48faa6fff2684ced7194 [2022-10-17 11:05:40,306 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-17 11:05:40,309 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-10-17 11:05:40,311 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-17 11:05:40,311 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-17 11:05:40,314 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-17 11:05:40,315 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 11:05:40" (1/1) ... [2022-10-17 11:05:40,316 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@17748c15 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:05:40, skipping insertion in model container [2022-10-17 11:05:40,316 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 11:05:40" (1/1) ... [2022-10-17 11:05:40,324 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-17 11:05:40,376 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-17 11:05:40,926 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34590f23-235d-4a3f-84f1-efadeed8a0eb/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test3-1.i[33021,33034] [2022-10-17 11:05:41,117 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34590f23-235d-4a3f-84f1-efadeed8a0eb/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test3-1.i[44590,44603] [2022-10-17 11:05:41,130 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 11:05:41,150 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) [2022-10-17 11:05:41,151 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@4cce2a24 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:05:41, skipping insertion in model container [2022-10-17 11:05:41,152 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-17 11:05:41,152 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2022-10-17 11:05:41,155 INFO L158 Benchmark]: Toolchain (without parser) took 844.54ms. Allocated memory is still 94.4MB. Free memory was 72.2MB in the beginning and 60.1MB in the end (delta: 12.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-10-17 11:05:41,158 INFO L158 Benchmark]: CDTParser took 0.35ms. Allocated memory is still 94.4MB. Free memory was 69.9MB in the beginning and 69.8MB in the end (delta: 77.0kB). There was no memory consumed. Max. memory is 16.1GB. [2022-10-17 11:05:41,161 INFO L158 Benchmark]: CACSL2BoogieTranslator took 841.25ms. Allocated memory is still 94.4MB. Free memory was 71.9MB in the beginning and 60.1MB in the end (delta: 11.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-10-17 11:05:41,163 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35ms. Allocated memory is still 94.4MB. Free memory was 69.9MB in the beginning and 69.8MB in the end (delta: 77.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 841.25ms. Allocated memory is still 94.4MB. Free memory was 71.9MB in the beginning and 60.1MB in the end (delta: 11.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 736]: 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/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34590f23-235d-4a3f-84f1-efadeed8a0eb/bin/uautomizer-J5u9QxTXDZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34590f23-235d-4a3f-84f1-efadeed8a0eb/bin/uautomizer-J5u9QxTXDZ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34590f23-235d-4a3f-84f1-efadeed8a0eb/bin/uautomizer-J5u9QxTXDZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34590f23-235d-4a3f-84f1-efadeed8a0eb/bin/uautomizer-J5u9QxTXDZ/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test3-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34590f23-235d-4a3f-84f1-efadeed8a0eb/bin/uautomizer-J5u9QxTXDZ/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34590f23-235d-4a3f-84f1-efadeed8a0eb/bin/uautomizer-J5u9QxTXDZ --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 2f1aaf5276e100f83cf10565e66c3b5d8c0baa3bbd1a1424b76fbee71241f226 --- 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-dbf71c6-m [2022-10-17 11:05:43,568 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-17 11:05:43,571 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-17 11:05:43,629 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-17 11:05:43,630 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-17 11:05:43,635 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-17 11:05:43,638 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-17 11:05:43,645 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-17 11:05:43,654 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-17 11:05:43,660 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-17 11:05:43,661 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-17 11:05:43,664 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-17 11:05:43,664 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-17 11:05:43,667 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-17 11:05:43,669 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-17 11:05:43,671 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-17 11:05:43,672 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-17 11:05:43,674 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-17 11:05:43,676 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-17 11:05:43,683 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-17 11:05:43,685 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-17 11:05:43,687 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-17 11:05:43,690 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-17 11:05:43,692 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-17 11:05:43,703 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-17 11:05:43,704 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-17 11:05:43,704 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-17 11:05:43,706 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-17 11:05:43,707 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-17 11:05:43,709 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-17 11:05:43,709 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-17 11:05:43,710 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-17 11:05:43,712 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-17 11:05:43,713 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-17 11:05:43,714 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-17 11:05:43,715 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-17 11:05:43,716 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-17 11:05:43,716 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-17 11:05:43,716 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-17 11:05:43,718 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-17 11:05:43,719 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-17 11:05:43,720 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34590f23-235d-4a3f-84f1-efadeed8a0eb/bin/uautomizer-J5u9QxTXDZ/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2022-10-17 11:05:43,767 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-17 11:05:43,767 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-17 11:05:43,768 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-17 11:05:43,768 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-17 11:05:43,769 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-17 11:05:43,769 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-17 11:05:43,771 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-17 11:05:43,771 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-17 11:05:43,771 INFO L138 SettingsManager]: * Use SBE=true [2022-10-17 11:05:43,772 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-17 11:05:43,773 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-17 11:05:43,773 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-17 11:05:43,773 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-17 11:05:43,773 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-17 11:05:43,774 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-17 11:05:43,774 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-10-17 11:05:43,774 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-10-17 11:05:43,775 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-10-17 11:05:43,775 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-17 11:05:43,775 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-10-17 11:05:43,775 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-10-17 11:05:43,775 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-10-17 11:05:43,776 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-17 11:05:43,776 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-17 11:05:43,776 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-17 11:05:43,776 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-17 11:05:43,777 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-17 11:05:43,777 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-17 11:05:43,777 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-17 11:05:43,778 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-17 11:05:43,778 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-10-17 11:05:43,778 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-10-17 11:05:43,779 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-10-17 11:05:43,779 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_34590f23-235d-4a3f-84f1-efadeed8a0eb/bin/uautomizer-J5u9QxTXDZ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34590f23-235d-4a3f-84f1-efadeed8a0eb/bin/uautomizer-J5u9QxTXDZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2f1aaf5276e100f83cf10565e66c3b5d8c0baa3bbd1a1424b76fbee71241f226 [2022-10-17 11:05:44,212 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-17 11:05:44,236 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-17 11:05:44,239 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-17 11:05:44,240 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-17 11:05:44,241 INFO L275 PluginConnector]: CDTParser initialized [2022-10-17 11:05:44,242 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34590f23-235d-4a3f-84f1-efadeed8a0eb/bin/uautomizer-J5u9QxTXDZ/../../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test3-1.i [2022-10-17 11:05:44,321 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34590f23-235d-4a3f-84f1-efadeed8a0eb/bin/uautomizer-J5u9QxTXDZ/data/ce6993db7/41b19c78d22a4cc4b4655accbe21fc01/FLAG2be3f8f39 [2022-10-17 11:05:45,040 INFO L306 CDTParser]: Found 1 translation units. [2022-10-17 11:05:45,040 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34590f23-235d-4a3f-84f1-efadeed8a0eb/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test3-1.i [2022-10-17 11:05:45,058 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34590f23-235d-4a3f-84f1-efadeed8a0eb/bin/uautomizer-J5u9QxTXDZ/data/ce6993db7/41b19c78d22a4cc4b4655accbe21fc01/FLAG2be3f8f39 [2022-10-17 11:05:45,197 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34590f23-235d-4a3f-84f1-efadeed8a0eb/bin/uautomizer-J5u9QxTXDZ/data/ce6993db7/41b19c78d22a4cc4b4655accbe21fc01 [2022-10-17 11:05:45,200 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-17 11:05:45,201 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-10-17 11:05:45,203 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-17 11:05:45,203 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-17 11:05:45,208 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-17 11:05:45,208 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 11:05:45" (1/1) ... [2022-10-17 11:05:45,210 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@49a15c10 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:05:45, skipping insertion in model container [2022-10-17 11:05:45,210 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 11:05:45" (1/1) ... [2022-10-17 11:05:45,227 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-17 11:05:45,295 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-17 11:05:45,834 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34590f23-235d-4a3f-84f1-efadeed8a0eb/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test3-1.i[33021,33034] [2022-10-17 11:05:45,962 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34590f23-235d-4a3f-84f1-efadeed8a0eb/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test3-1.i[44590,44603] [2022-10-17 11:05:45,971 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 11:05:45,985 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-10-17 11:05:46,000 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-17 11:05:46,030 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34590f23-235d-4a3f-84f1-efadeed8a0eb/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test3-1.i[33021,33034] [2022-10-17 11:05:46,159 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34590f23-235d-4a3f-84f1-efadeed8a0eb/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test3-1.i[44590,44603] [2022-10-17 11:05:46,167 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 11:05:46,184 INFO L203 MainTranslator]: Completed pre-run [2022-10-17 11:05:46,236 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34590f23-235d-4a3f-84f1-efadeed8a0eb/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test3-1.i[33021,33034] [2022-10-17 11:05:46,307 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34590f23-235d-4a3f-84f1-efadeed8a0eb/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test3-1.i[44590,44603] [2022-10-17 11:05:46,313 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 11:05:46,374 INFO L208 MainTranslator]: Completed translation [2022-10-17 11:05:46,374 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:05:46 WrapperNode [2022-10-17 11:05:46,375 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-17 11:05:46,376 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-17 11:05:46,376 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-17 11:05:46,376 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-17 11:05:46,384 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:05:46" (1/1) ... [2022-10-17 11:05:46,423 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:05:46" (1/1) ... [2022-10-17 11:05:46,476 INFO L138 Inliner]: procedures = 180, calls = 285, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1041 [2022-10-17 11:05:46,476 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-17 11:05:46,477 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-17 11:05:46,477 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-17 11:05:46,478 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-17 11:05:46,490 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:05:46" (1/1) ... [2022-10-17 11:05:46,490 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:05:46" (1/1) ... [2022-10-17 11:05:46,509 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:05:46" (1/1) ... [2022-10-17 11:05:46,509 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:05:46" (1/1) ... [2022-10-17 11:05:46,589 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:05:46" (1/1) ... [2022-10-17 11:05:46,607 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:05:46" (1/1) ... [2022-10-17 11:05:46,625 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:05:46" (1/1) ... [2022-10-17 11:05:46,645 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:05:46" (1/1) ... [2022-10-17 11:05:46,681 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-17 11:05:46,682 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-17 11:05:46,682 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-17 11:05:46,683 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-17 11:05:46,683 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:05:46" (1/1) ... [2022-10-17 11:05:46,690 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-17 11:05:46,705 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34590f23-235d-4a3f-84f1-efadeed8a0eb/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 11:05:46,722 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34590f23-235d-4a3f-84f1-efadeed8a0eb/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-10-17 11:05:46,751 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34590f23-235d-4a3f-84f1-efadeed8a0eb/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-10-17 11:05:46,773 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2022-10-17 11:05:46,773 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-10-17 11:05:46,773 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-10-17 11:05:46,773 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-10-17 11:05:46,774 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-10-17 11:05:46,774 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-10-17 11:05:46,774 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-10-17 11:05:46,774 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-17 11:05:46,774 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-10-17 11:05:46,774 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-10-17 11:05:46,775 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2022-10-17 11:05:46,775 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-10-17 11:05:46,775 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-10-17 11:05:46,775 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-10-17 11:05:46,775 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-10-17 11:05:46,775 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-17 11:05:46,775 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-17 11:05:47,025 INFO L235 CfgBuilder]: Building ICFG [2022-10-17 11:05:47,039 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-17 11:05:47,043 WARN L816 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-10-17 11:05:52,503 INFO L276 CfgBuilder]: Performing block encoding [2022-10-17 11:05:52,541 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-17 11:05:52,541 INFO L300 CfgBuilder]: Removed 63 assume(true) statements. [2022-10-17 11:05:52,549 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 11:05:52 BoogieIcfgContainer [2022-10-17 11:05:52,550 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-17 11:05:52,553 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-17 11:05:52,553 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-17 11:05:52,557 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-17 11:05:52,557 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.10 11:05:45" (1/3) ... [2022-10-17 11:05:52,558 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@79c1153e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.10 11:05:52, skipping insertion in model container [2022-10-17 11:05:52,558 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:05:46" (2/3) ... [2022-10-17 11:05:52,558 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@79c1153e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.10 11:05:52, skipping insertion in model container [2022-10-17 11:05:52,559 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 11:05:52" (3/3) ... [2022-10-17 11:05:52,562 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_FNV_test3-1.i [2022-10-17 11:05:52,582 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-17 11:05:52,582 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 534 error locations. [2022-10-17 11:05:52,681 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-17 11:05:52,689 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;@3f540d0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-17 11:05:52,690 INFO L358 AbstractCegarLoop]: Starting to check reachability of 534 error locations. [2022-10-17 11:05:52,701 INFO L276 IsEmpty]: Start isEmpty. Operand has 1072 states, 530 states have (on average 2.2452830188679247) internal successors, (1190), 1066 states have internal predecessors, (1190), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2022-10-17 11:05:52,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-10-17 11:05:52,708 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 11:05:52,709 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2022-10-17 11:05:52,710 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 531 more)] === [2022-10-17 11:05:52,716 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 11:05:52,717 INFO L85 PathProgramCache]: Analyzing trace with hash 38794, now seen corresponding path program 1 times [2022-10-17 11:05:52,729 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-10-17 11:05:52,730 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1143340938] [2022-10-17 11:05:52,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 11:05:52,731 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-10-17 11:05:52,733 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34590f23-235d-4a3f-84f1-efadeed8a0eb/bin/uautomizer-J5u9QxTXDZ/mathsat [2022-10-17 11:05:52,740 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34590f23-235d-4a3f-84f1-efadeed8a0eb/bin/uautomizer-J5u9QxTXDZ/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-10-17 11:05:52,747 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34590f23-235d-4a3f-84f1-efadeed8a0eb/bin/uautomizer-J5u9QxTXDZ/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-10-17 11:05:52,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:05:52,915 INFO L263 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-17 11:05:52,923 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 11:05:53,026 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 [2022-10-17 11:05:53,051 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 11:05:53,051 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-17 11:05:53,052 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-10-17 11:05:53,052 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1143340938] [2022-10-17 11:05:53,053 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1143340938] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 11:05:53,053 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 11:05:53,053 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-17 11:05:53,055 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1744365194] [2022-10-17 11:05:53,056 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 11:05:53,061 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-17 11:05:53,061 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-10-17 11:05:53,137 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-17 11:05:53,137 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-17 11:05:53,142 INFO L87 Difference]: Start difference. First operand has 1072 states, 530 states have (on average 2.2452830188679247) internal successors, (1190), 1066 states have internal predecessors, (1190), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 11:05:55,511 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 11:05:55,512 INFO L93 Difference]: Finished difference Result 1067 states and 1132 transitions. [2022-10-17 11:05:55,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-17 11:05:55,515 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2022-10-17 11:05:55,515 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 11:05:55,549 INFO L225 Difference]: With dead ends: 1067 [2022-10-17 11:05:55,550 INFO L226 Difference]: Without dead ends: 1065 [2022-10-17 11:05:55,552 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-17 11:05:55,559 INFO L413 NwaCegarLoop]: 648 mSDtfsCounter, 990 mSDsluCounter, 57 mSDsCounter, 0 mSdLazyCounter, 547 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 998 SdHoareTripleChecker+Valid, 705 SdHoareTripleChecker+Invalid, 563 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 547 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-10-17 11:05:55,562 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [998 Valid, 705 Invalid, 563 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 547 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2022-10-17 11:05:55,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1065 states. [2022-10-17 11:05:55,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1065 to 1057. [2022-10-17 11:05:55,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1057 states, 530 states have (on average 2.0886792452830187) internal successors, (1107), 1051 states have internal predecessors, (1107), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2022-10-17 11:05:55,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1057 states to 1057 states and 1123 transitions. [2022-10-17 11:05:55,690 INFO L78 Accepts]: Start accepts. Automaton has 1057 states and 1123 transitions. Word has length 3 [2022-10-17 11:05:55,691 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 11:05:55,695 INFO L495 AbstractCegarLoop]: Abstraction has 1057 states and 1123 transitions. [2022-10-17 11:05:55,696 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 11:05:55,696 INFO L276 IsEmpty]: Start isEmpty. Operand 1057 states and 1123 transitions. [2022-10-17 11:05:55,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-10-17 11:05:55,697 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 11:05:55,697 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2022-10-17 11:05:55,724 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34590f23-235d-4a3f-84f1-efadeed8a0eb/bin/uautomizer-J5u9QxTXDZ/mathsat -unsat_core_generation=3 (2)] Ended with exit code 0 [2022-10-17 11:05:55,911 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34590f23-235d-4a3f-84f1-efadeed8a0eb/bin/uautomizer-J5u9QxTXDZ/mathsat -unsat_core_generation=3 [2022-10-17 11:05:55,916 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 531 more)] === [2022-10-17 11:05:55,916 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 11:05:55,917 INFO L85 PathProgramCache]: Analyzing trace with hash 38795, now seen corresponding path program 1 times [2022-10-17 11:05:55,917 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-10-17 11:05:55,919 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [18597468] [2022-10-17 11:05:55,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 11:05:55,920 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-10-17 11:05:55,920 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34590f23-235d-4a3f-84f1-efadeed8a0eb/bin/uautomizer-J5u9QxTXDZ/mathsat [2022-10-17 11:05:55,922 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34590f23-235d-4a3f-84f1-efadeed8a0eb/bin/uautomizer-J5u9QxTXDZ/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-10-17 11:05:55,936 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34590f23-235d-4a3f-84f1-efadeed8a0eb/bin/uautomizer-J5u9QxTXDZ/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-10-17 11:05:56,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:05:56,051 INFO L263 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 4 conjunts are in the unsatisfiable core [2022-10-17 11:05:56,054 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 11:05:56,071 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 5 [2022-10-17 11:05:56,084 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 11:05:56,084 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-17 11:05:56,085 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-10-17 11:05:56,085 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [18597468] [2022-10-17 11:05:56,085 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [18597468] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 11:05:56,085 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 11:05:56,086 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-17 11:05:56,086 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [289979068] [2022-10-17 11:05:56,086 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 11:05:56,088 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-17 11:05:56,091 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-10-17 11:05:56,092 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-17 11:05:56,092 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-17 11:05:56,093 INFO L87 Difference]: Start difference. First operand 1057 states and 1123 transitions. Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 11:05:59,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 11:05:59,445 INFO L93 Difference]: Finished difference Result 1467 states and 1573 transitions. [2022-10-17 11:05:59,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-17 11:05:59,446 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2022-10-17 11:05:59,446 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 11:05:59,457 INFO L225 Difference]: With dead ends: 1467 [2022-10-17 11:05:59,458 INFO L226 Difference]: Without dead ends: 1467 [2022-10-17 11:05:59,458 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-17 11:05:59,461 INFO L413 NwaCegarLoop]: 933 mSDtfsCounter, 440 mSDsluCounter, 589 mSDsCounter, 0 mSdLazyCounter, 713 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 445 SdHoareTripleChecker+Valid, 1522 SdHoareTripleChecker+Invalid, 718 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 713 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2022-10-17 11:05:59,462 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [445 Valid, 1522 Invalid, 718 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 713 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2022-10-17 11:05:59,473 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1467 states. [2022-10-17 11:05:59,529 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1467 to 1257. [2022-10-17 11:05:59,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1257 states, 731 states have (on average 2.0779753761969904) internal successors, (1519), 1251 states have internal predecessors, (1519), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2022-10-17 11:05:59,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1257 states to 1257 states and 1535 transitions. [2022-10-17 11:05:59,540 INFO L78 Accepts]: Start accepts. Automaton has 1257 states and 1535 transitions. Word has length 3 [2022-10-17 11:05:59,540 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 11:05:59,540 INFO L495 AbstractCegarLoop]: Abstraction has 1257 states and 1535 transitions. [2022-10-17 11:05:59,541 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 11:05:59,543 INFO L276 IsEmpty]: Start isEmpty. Operand 1257 states and 1535 transitions. [2022-10-17 11:05:59,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-10-17 11:05:59,544 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 11:05:59,544 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-10-17 11:05:59,561 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34590f23-235d-4a3f-84f1-efadeed8a0eb/bin/uautomizer-J5u9QxTXDZ/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-10-17 11:05:59,756 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34590f23-235d-4a3f-84f1-efadeed8a0eb/bin/uautomizer-J5u9QxTXDZ/mathsat -unsat_core_generation=3 [2022-10-17 11:05:59,756 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 531 more)] === [2022-10-17 11:05:59,757 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 11:05:59,757 INFO L85 PathProgramCache]: Analyzing trace with hash 1466973012, now seen corresponding path program 1 times [2022-10-17 11:05:59,758 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-10-17 11:05:59,758 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1038226277] [2022-10-17 11:05:59,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 11:05:59,759 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-10-17 11:05:59,759 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34590f23-235d-4a3f-84f1-efadeed8a0eb/bin/uautomizer-J5u9QxTXDZ/mathsat [2022-10-17 11:05:59,760 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34590f23-235d-4a3f-84f1-efadeed8a0eb/bin/uautomizer-J5u9QxTXDZ/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-10-17 11:05:59,767 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34590f23-235d-4a3f-84f1-efadeed8a0eb/bin/uautomizer-J5u9QxTXDZ/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-10-17 11:05:59,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:05:59,917 INFO L263 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 8 conjunts are in the unsatisfiable core [2022-10-17 11:05:59,920 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 11:05:59,935 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 5 [2022-10-17 11:05:59,947 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 [2022-10-17 11:06:00,035 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 11:06:00,037 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 14 [2022-10-17 11:06:00,055 INFO L356 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2022-10-17 11:06:00,056 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13 [2022-10-17 11:06:00,095 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 11:06:00,096 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-17 11:06:00,096 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-10-17 11:06:00,096 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1038226277] [2022-10-17 11:06:00,097 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1038226277] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 11:06:00,097 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 11:06:00,097 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-17 11:06:00,097 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1617565693] [2022-10-17 11:06:00,099 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 11:06:00,099 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-17 11:06:00,100 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-10-17 11:06:00,101 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-17 11:06:00,102 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-10-17 11:06:00,102 INFO L87 Difference]: Start difference. First operand 1257 states and 1535 transitions. Second operand has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 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) [2022-10-17 11:06:03,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 11:06:03,299 INFO L93 Difference]: Finished difference Result 1258 states and 1538 transitions. [2022-10-17 11:06:03,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-17 11:06:03,300 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2022-10-17 11:06:03,301 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 11:06:03,308 INFO L225 Difference]: With dead ends: 1258 [2022-10-17 11:06:03,309 INFO L226 Difference]: Without dead ends: 1258 [2022-10-17 11:06:03,309 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-10-17 11:06:03,310 INFO L413 NwaCegarLoop]: 374 mSDtfsCounter, 2051 mSDsluCounter, 35 mSDsCounter, 0 mSdLazyCounter, 826 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2059 SdHoareTripleChecker+Valid, 409 SdHoareTripleChecker+Invalid, 858 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 826 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2022-10-17 11:06:03,311 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2059 Valid, 409 Invalid, 858 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 826 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2022-10-17 11:06:03,335 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1258 states. [2022-10-17 11:06:03,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1258 to 1046. [2022-10-17 11:06:03,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1046 states, 530 states have (on average 2.0660377358490565) internal successors, (1095), 1040 states have internal predecessors, (1095), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2022-10-17 11:06:03,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1046 states to 1046 states and 1111 transitions. [2022-10-17 11:06:03,366 INFO L78 Accepts]: Start accepts. Automaton has 1046 states and 1111 transitions. Word has length 7 [2022-10-17 11:06:03,367 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 11:06:03,367 INFO L495 AbstractCegarLoop]: Abstraction has 1046 states and 1111 transitions. [2022-10-17 11:06:03,367 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 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) [2022-10-17 11:06:03,368 INFO L276 IsEmpty]: Start isEmpty. Operand 1046 states and 1111 transitions. [2022-10-17 11:06:03,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-10-17 11:06:03,368 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 11:06:03,369 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 11:06:03,385 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34590f23-235d-4a3f-84f1-efadeed8a0eb/bin/uautomizer-J5u9QxTXDZ/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2022-10-17 11:06:03,573 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34590f23-235d-4a3f-84f1-efadeed8a0eb/bin/uautomizer-J5u9QxTXDZ/mathsat -unsat_core_generation=3 [2022-10-17 11:06:03,574 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 531 more)] === [2022-10-17 11:06:03,574 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 11:06:03,575 INFO L85 PathProgramCache]: Analyzing trace with hash -1768476910, now seen corresponding path program 1 times [2022-10-17 11:06:03,575 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-10-17 11:06:03,576 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [261671569] [2022-10-17 11:06:03,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 11:06:03,576 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-10-17 11:06:03,576 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34590f23-235d-4a3f-84f1-efadeed8a0eb/bin/uautomizer-J5u9QxTXDZ/mathsat [2022-10-17 11:06:03,579 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34590f23-235d-4a3f-84f1-efadeed8a0eb/bin/uautomizer-J5u9QxTXDZ/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-10-17 11:06:03,581 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34590f23-235d-4a3f-84f1-efadeed8a0eb/bin/uautomizer-J5u9QxTXDZ/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-10-17 11:06:03,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:06:03,713 INFO L263 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-17 11:06:03,716 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 11:06:03,722 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 [2022-10-17 11:06:03,737 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 11:06:03,737 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-17 11:06:03,737 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-10-17 11:06:03,737 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [261671569] [2022-10-17 11:06:03,738 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [261671569] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 11:06:03,738 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 11:06:03,738 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-17 11:06:03,738 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1348753113] [2022-10-17 11:06:03,739 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 11:06:03,739 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-17 11:06:03,739 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-10-17 11:06:03,740 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-17 11:06:03,740 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-17 11:06:03,741 INFO L87 Difference]: Start difference. First operand 1046 states and 1111 transitions. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 11:06:06,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 11:06:06,141 INFO L93 Difference]: Finished difference Result 1373 states and 1467 transitions. [2022-10-17 11:06:06,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-17 11:06:06,143 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2022-10-17 11:06:06,144 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 11:06:06,153 INFO L225 Difference]: With dead ends: 1373 [2022-10-17 11:06:06,153 INFO L226 Difference]: Without dead ends: 1373 [2022-10-17 11:06:06,154 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-17 11:06:06,155 INFO L413 NwaCegarLoop]: 953 mSDtfsCounter, 990 mSDsluCounter, 245 mSDsCounter, 0 mSdLazyCounter, 720 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 998 SdHoareTripleChecker+Valid, 1198 SdHoareTripleChecker+Invalid, 774 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 720 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-10-17 11:06:06,156 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [998 Valid, 1198 Invalid, 774 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 720 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2022-10-17 11:06:06,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1373 states. [2022-10-17 11:06:06,181 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1373 to 997. [2022-10-17 11:06:06,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 997 states, 530 states have (on average 1.9735849056603774) internal successors, (1046), 991 states have internal predecessors, (1046), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2022-10-17 11:06:06,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 997 states to 997 states and 1062 transitions. [2022-10-17 11:06:06,189 INFO L78 Accepts]: Start accepts. Automaton has 997 states and 1062 transitions. Word has length 8 [2022-10-17 11:06:06,189 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 11:06:06,189 INFO L495 AbstractCegarLoop]: Abstraction has 997 states and 1062 transitions. [2022-10-17 11:06:06,190 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 11:06:06,190 INFO L276 IsEmpty]: Start isEmpty. Operand 997 states and 1062 transitions. [2022-10-17 11:06:06,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-10-17 11:06:06,191 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 11:06:06,191 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 11:06:06,210 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34590f23-235d-4a3f-84f1-efadeed8a0eb/bin/uautomizer-J5u9QxTXDZ/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2022-10-17 11:06:06,403 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34590f23-235d-4a3f-84f1-efadeed8a0eb/bin/uautomizer-J5u9QxTXDZ/mathsat -unsat_core_generation=3 [2022-10-17 11:06:06,403 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 531 more)] === [2022-10-17 11:06:06,403 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 11:06:06,403 INFO L85 PathProgramCache]: Analyzing trace with hash -1768476909, now seen corresponding path program 1 times [2022-10-17 11:06:06,404 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-10-17 11:06:06,404 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1560517820] [2022-10-17 11:06:06,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 11:06:06,404 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-10-17 11:06:06,404 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34590f23-235d-4a3f-84f1-efadeed8a0eb/bin/uautomizer-J5u9QxTXDZ/mathsat [2022-10-17 11:06:06,405 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34590f23-235d-4a3f-84f1-efadeed8a0eb/bin/uautomizer-J5u9QxTXDZ/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-10-17 11:06:06,408 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34590f23-235d-4a3f-84f1-efadeed8a0eb/bin/uautomizer-J5u9QxTXDZ/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-10-17 11:06:06,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:06:06,542 INFO L263 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 4 conjunts are in the unsatisfiable core [2022-10-17 11:06:06,548 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 11:06:06,556 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 5 [2022-10-17 11:06:06,586 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 11:06:06,586 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-17 11:06:06,586 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-10-17 11:06:06,587 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1560517820] [2022-10-17 11:06:06,587 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1560517820] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 11:06:06,587 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 11:06:06,587 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-17 11:06:06,587 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [446706932] [2022-10-17 11:06:06,587 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 11:06:06,588 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-17 11:06:06,588 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-10-17 11:06:06,588 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-17 11:06:06,588 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-17 11:06:06,588 INFO L87 Difference]: Start difference. First operand 997 states and 1062 transitions. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 11:06:09,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 11:06:09,844 INFO L93 Difference]: Finished difference Result 1451 states and 1548 transitions. [2022-10-17 11:06:09,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-17 11:06:09,845 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2022-10-17 11:06:09,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 11:06:09,854 INFO L225 Difference]: With dead ends: 1451 [2022-10-17 11:06:09,854 INFO L226 Difference]: Without dead ends: 1451 [2022-10-17 11:06:09,855 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-17 11:06:09,856 INFO L413 NwaCegarLoop]: 1162 mSDtfsCounter, 673 mSDsluCounter, 439 mSDsCounter, 0 mSdLazyCounter, 726 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 673 SdHoareTripleChecker+Valid, 1601 SdHoareTripleChecker+Invalid, 738 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 726 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2022-10-17 11:06:09,856 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [673 Valid, 1601 Invalid, 738 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 726 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2022-10-17 11:06:09,861 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1451 states. [2022-10-17 11:06:09,883 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1451 to 1019. [2022-10-17 11:06:09,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1019 states, 562 states have (on average 1.9608540925266904) internal successors, (1102), 1013 states have internal predecessors, (1102), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2022-10-17 11:06:09,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1019 states to 1019 states and 1118 transitions. [2022-10-17 11:06:09,890 INFO L78 Accepts]: Start accepts. Automaton has 1019 states and 1118 transitions. Word has length 8 [2022-10-17 11:06:09,890 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 11:06:09,891 INFO L495 AbstractCegarLoop]: Abstraction has 1019 states and 1118 transitions. [2022-10-17 11:06:09,891 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 11:06:09,891 INFO L276 IsEmpty]: Start isEmpty. Operand 1019 states and 1118 transitions. [2022-10-17 11:06:09,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-10-17 11:06:09,892 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 11:06:09,892 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 11:06:09,920 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34590f23-235d-4a3f-84f1-efadeed8a0eb/bin/uautomizer-J5u9QxTXDZ/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2022-10-17 11:06:10,105 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34590f23-235d-4a3f-84f1-efadeed8a0eb/bin/uautomizer-J5u9QxTXDZ/mathsat -unsat_core_generation=3 [2022-10-17 11:06:10,106 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr526REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 531 more)] === [2022-10-17 11:06:10,107 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 11:06:10,107 INFO L85 PathProgramCache]: Analyzing trace with hash 871377621, now seen corresponding path program 1 times [2022-10-17 11:06:10,107 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-10-17 11:06:10,107 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1767789554] [2022-10-17 11:06:10,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 11:06:10,108 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-10-17 11:06:10,108 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34590f23-235d-4a3f-84f1-efadeed8a0eb/bin/uautomizer-J5u9QxTXDZ/mathsat [2022-10-17 11:06:10,109 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34590f23-235d-4a3f-84f1-efadeed8a0eb/bin/uautomizer-J5u9QxTXDZ/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-10-17 11:06:10,110 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34590f23-235d-4a3f-84f1-efadeed8a0eb/bin/uautomizer-J5u9QxTXDZ/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2022-10-17 11:06:10,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:06:10,237 INFO L263 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-17 11:06:10,240 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 11:06:10,342 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 11:06:10,342 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-17 11:06:10,342 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-10-17 11:06:10,342 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1767789554] [2022-10-17 11:06:10,343 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1767789554] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 11:06:10,343 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 11:06:10,343 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-17 11:06:10,343 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [656252563] [2022-10-17 11:06:10,344 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 11:06:10,346 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-17 11:06:10,346 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-10-17 11:06:10,347 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-17 11:06:10,347 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-17 11:06:10,347 INFO L87 Difference]: Start difference. First operand 1019 states and 1118 transitions. Second operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 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)