./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test5-1.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_cb3ebe71-cfdb-4a34-9bcf-f4bcc3235047/bin/uautomizer-J5u9QxTXDZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb3ebe71-cfdb-4a34-9bcf-f4bcc3235047/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_cb3ebe71-cfdb-4a34-9bcf-f4bcc3235047/bin/uautomizer-J5u9QxTXDZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb3ebe71-cfdb-4a34-9bcf-f4bcc3235047/bin/uautomizer-J5u9QxTXDZ/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test5-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb3ebe71-cfdb-4a34-9bcf-f4bcc3235047/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_cb3ebe71-cfdb-4a34-9bcf-f4bcc3235047/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 adfc1710e761824cc0d761ee45a1724b8fd34135f47dcc82b27f8b64b97ca013 --- 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 10:14:45,626 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-17 10:14:45,629 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-17 10:14:45,688 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-17 10:14:45,688 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-17 10:14:45,693 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-17 10:14:45,696 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-17 10:14:45,701 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-17 10:14:45,704 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-17 10:14:45,710 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-17 10:14:45,711 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-17 10:14:45,714 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-17 10:14:45,714 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-17 10:14:45,717 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-17 10:14:45,719 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-17 10:14:45,721 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-17 10:14:45,723 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-17 10:14:45,724 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-17 10:14:45,727 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-17 10:14:45,738 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-17 10:14:45,740 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-17 10:14:45,741 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-17 10:14:45,746 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-17 10:14:45,747 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-17 10:14:45,758 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-17 10:14:45,759 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-17 10:14:45,759 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-17 10:14:45,762 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-17 10:14:45,762 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-17 10:14:45,764 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-17 10:14:45,764 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-17 10:14:45,766 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-17 10:14:45,768 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-17 10:14:45,770 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-17 10:14:45,772 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-17 10:14:45,773 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-17 10:14:45,774 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-17 10:14:45,774 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-17 10:14:45,774 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-17 10:14:45,775 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-17 10:14:45,776 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-17 10:14:45,779 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb3ebe71-cfdb-4a34-9bcf-f4bcc3235047/bin/uautomizer-J5u9QxTXDZ/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2022-10-17 10:14:45,828 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-17 10:14:45,828 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-17 10:14:45,829 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-17 10:14:45,829 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-17 10:14:45,830 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-17 10:14:45,830 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-17 10:14:45,831 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-17 10:14:45,831 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-17 10:14:45,832 INFO L138 SettingsManager]: * Use SBE=true [2022-10-17 10:14:45,832 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-17 10:14:45,833 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-17 10:14:45,834 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-17 10:14:45,834 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-17 10:14:45,834 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-17 10:14:45,834 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-17 10:14:45,835 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-10-17 10:14:45,835 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-10-17 10:14:45,835 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-10-17 10:14:45,835 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-17 10:14:45,836 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-10-17 10:14:45,836 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-17 10:14:45,836 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-17 10:14:45,836 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-17 10:14:45,837 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-17 10:14:45,837 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-17 10:14:45,837 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-17 10:14:45,839 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-17 10:14:45,839 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-17 10:14:45,839 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-17 10:14:45,840 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-17 10:14:45,840 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_cb3ebe71-cfdb-4a34-9bcf-f4bcc3235047/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb3ebe71-cfdb-4a34-9bcf-f4bcc3235047/bin/uautomizer-J5u9QxTXDZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> adfc1710e761824cc0d761ee45a1724b8fd34135f47dcc82b27f8b64b97ca013 [2022-10-17 10:14:46,132 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-17 10:14:46,161 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-17 10:14:46,165 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-17 10:14:46,166 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-17 10:14:46,167 INFO L275 PluginConnector]: CDTParser initialized [2022-10-17 10:14:46,168 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb3ebe71-cfdb-4a34-9bcf-f4bcc3235047/bin/uautomizer-J5u9QxTXDZ/../../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test5-1.i [2022-10-17 10:14:46,235 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb3ebe71-cfdb-4a34-9bcf-f4bcc3235047/bin/uautomizer-J5u9QxTXDZ/data/71d956540/d0eff4c7f27045748e605f1d17a314e9/FLAG5853bd0a5 [2022-10-17 10:14:47,051 INFO L306 CDTParser]: Found 1 translation units. [2022-10-17 10:14:47,051 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb3ebe71-cfdb-4a34-9bcf-f4bcc3235047/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test5-1.i [2022-10-17 10:14:47,081 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb3ebe71-cfdb-4a34-9bcf-f4bcc3235047/bin/uautomizer-J5u9QxTXDZ/data/71d956540/d0eff4c7f27045748e605f1d17a314e9/FLAG5853bd0a5 [2022-10-17 10:14:47,203 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb3ebe71-cfdb-4a34-9bcf-f4bcc3235047/bin/uautomizer-J5u9QxTXDZ/data/71d956540/d0eff4c7f27045748e605f1d17a314e9 [2022-10-17 10:14:47,206 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-17 10:14:47,208 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-10-17 10:14:47,210 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-17 10:14:47,210 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-17 10:14:47,214 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-17 10:14:47,215 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 10:14:47" (1/1) ... [2022-10-17 10:14:47,216 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5bd56760 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:14:47, skipping insertion in model container [2022-10-17 10:14:47,217 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 10:14:47" (1/1) ... [2022-10-17 10:14:47,225 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-17 10:14:47,282 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-17 10:14:47,790 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_cb3ebe71-cfdb-4a34-9bcf-f4bcc3235047/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test5-1.i[33021,33034] [2022-10-17 10:14:48,001 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_cb3ebe71-cfdb-4a34-9bcf-f4bcc3235047/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test5-1.i[49681,49694] [2022-10-17 10:14:48,023 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 10:14:48,052 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 10:14:48,053 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@6b5c9b43 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:14:48, skipping insertion in model container [2022-10-17 10:14:48,053 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-17 10:14:48,054 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2022-10-17 10:14:48,056 INFO L158 Benchmark]: Toolchain (without parser) took 847.17ms. Allocated memory is still 115.3MB. Free memory was 91.1MB in the beginning and 77.1MB in the end (delta: 13.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-10-17 10:14:48,057 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 86.0MB. Free memory was 62.7MB in the beginning and 62.7MB in the end (delta: 70.0kB). There was no memory consumed. Max. memory is 16.1GB. [2022-10-17 10:14:48,058 INFO L158 Benchmark]: CACSL2BoogieTranslator took 844.23ms. Allocated memory is still 115.3MB. Free memory was 90.7MB in the beginning and 77.1MB in the end (delta: 13.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-10-17 10:14:48,060 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 86.0MB. Free memory was 62.7MB in the beginning and 62.7MB in the end (delta: 70.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 844.23ms. Allocated memory is still 115.3MB. Free memory was 90.7MB in the beginning and 77.1MB in the end (delta: 13.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 737]: 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_cb3ebe71-cfdb-4a34-9bcf-f4bcc3235047/bin/uautomizer-J5u9QxTXDZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb3ebe71-cfdb-4a34-9bcf-f4bcc3235047/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_cb3ebe71-cfdb-4a34-9bcf-f4bcc3235047/bin/uautomizer-J5u9QxTXDZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb3ebe71-cfdb-4a34-9bcf-f4bcc3235047/bin/uautomizer-J5u9QxTXDZ/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test5-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb3ebe71-cfdb-4a34-9bcf-f4bcc3235047/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_cb3ebe71-cfdb-4a34-9bcf-f4bcc3235047/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 adfc1710e761824cc0d761ee45a1724b8fd34135f47dcc82b27f8b64b97ca013 --- 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 10:14:50,569 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-17 10:14:50,572 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-17 10:14:50,629 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-17 10:14:50,630 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-17 10:14:50,634 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-17 10:14:50,637 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-17 10:14:50,645 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-17 10:14:50,652 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-17 10:14:50,660 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-17 10:14:50,661 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-17 10:14:50,663 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-17 10:14:50,664 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-17 10:14:50,667 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-17 10:14:50,670 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-17 10:14:50,671 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-17 10:14:50,673 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-17 10:14:50,675 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-17 10:14:50,677 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-17 10:14:50,688 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-17 10:14:50,692 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-17 10:14:50,695 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-17 10:14:50,699 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-17 10:14:50,701 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-17 10:14:50,712 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-17 10:14:50,713 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-17 10:14:50,713 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-17 10:14:50,716 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-17 10:14:50,717 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-17 10:14:50,718 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-17 10:14:50,719 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-17 10:14:50,720 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-17 10:14:50,722 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-17 10:14:50,723 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-17 10:14:50,725 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-17 10:14:50,725 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-17 10:14:50,726 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-17 10:14:50,726 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-17 10:14:50,727 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-17 10:14:50,729 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-17 10:14:50,730 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-17 10:14:50,731 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb3ebe71-cfdb-4a34-9bcf-f4bcc3235047/bin/uautomizer-J5u9QxTXDZ/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2022-10-17 10:14:50,775 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-17 10:14:50,775 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-17 10:14:50,777 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-17 10:14:50,777 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-17 10:14:50,778 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-17 10:14:50,778 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-17 10:14:50,780 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-17 10:14:50,780 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-17 10:14:50,780 INFO L138 SettingsManager]: * Use SBE=true [2022-10-17 10:14:50,781 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-17 10:14:50,782 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-17 10:14:50,782 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-17 10:14:50,782 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-17 10:14:50,782 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-17 10:14:50,783 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-17 10:14:50,783 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-10-17 10:14:50,783 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-10-17 10:14:50,784 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-10-17 10:14:50,784 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-17 10:14:50,784 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-10-17 10:14:50,784 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-10-17 10:14:50,784 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-10-17 10:14:50,785 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-17 10:14:50,785 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-17 10:14:50,785 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-17 10:14:50,785 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-17 10:14:50,786 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-17 10:14:50,786 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-17 10:14:50,786 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-17 10:14:50,787 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-17 10:14:50,787 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-10-17 10:14:50,787 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-10-17 10:14:50,788 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-10-17 10:14:50,788 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_cb3ebe71-cfdb-4a34-9bcf-f4bcc3235047/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb3ebe71-cfdb-4a34-9bcf-f4bcc3235047/bin/uautomizer-J5u9QxTXDZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> adfc1710e761824cc0d761ee45a1724b8fd34135f47dcc82b27f8b64b97ca013 [2022-10-17 10:14:51,224 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-17 10:14:51,246 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-17 10:14:51,249 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-17 10:14:51,251 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-17 10:14:51,251 INFO L275 PluginConnector]: CDTParser initialized [2022-10-17 10:14:51,253 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb3ebe71-cfdb-4a34-9bcf-f4bcc3235047/bin/uautomizer-J5u9QxTXDZ/../../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test5-1.i [2022-10-17 10:14:51,319 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb3ebe71-cfdb-4a34-9bcf-f4bcc3235047/bin/uautomizer-J5u9QxTXDZ/data/b65d0d2b3/0f094b4a57374a95b4802fc423b889c9/FLAG3a942e96f [2022-10-17 10:14:52,097 INFO L306 CDTParser]: Found 1 translation units. [2022-10-17 10:14:52,099 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb3ebe71-cfdb-4a34-9bcf-f4bcc3235047/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test5-1.i [2022-10-17 10:14:52,128 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb3ebe71-cfdb-4a34-9bcf-f4bcc3235047/bin/uautomizer-J5u9QxTXDZ/data/b65d0d2b3/0f094b4a57374a95b4802fc423b889c9/FLAG3a942e96f [2022-10-17 10:14:52,206 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb3ebe71-cfdb-4a34-9bcf-f4bcc3235047/bin/uautomizer-J5u9QxTXDZ/data/b65d0d2b3/0f094b4a57374a95b4802fc423b889c9 [2022-10-17 10:14:52,209 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-17 10:14:52,213 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-10-17 10:14:52,215 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-17 10:14:52,215 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-17 10:14:52,220 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-17 10:14:52,221 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 10:14:52" (1/1) ... [2022-10-17 10:14:52,223 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 10:14:52, skipping insertion in model container [2022-10-17 10:14:52,223 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 10:14:52" (1/1) ... [2022-10-17 10:14:52,231 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-17 10:14:52,321 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-17 10:14:52,815 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_cb3ebe71-cfdb-4a34-9bcf-f4bcc3235047/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test5-1.i[33021,33034] [2022-10-17 10:14:52,975 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_cb3ebe71-cfdb-4a34-9bcf-f4bcc3235047/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test5-1.i[49681,49694] [2022-10-17 10:14:52,986 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 10:14:53,000 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-10-17 10:14:53,019 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-17 10:14:53,057 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_cb3ebe71-cfdb-4a34-9bcf-f4bcc3235047/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test5-1.i[33021,33034] [2022-10-17 10:14:53,202 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_cb3ebe71-cfdb-4a34-9bcf-f4bcc3235047/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test5-1.i[49681,49694] [2022-10-17 10:14:53,224 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 10:14:53,233 INFO L203 MainTranslator]: Completed pre-run [2022-10-17 10:14:53,286 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_cb3ebe71-cfdb-4a34-9bcf-f4bcc3235047/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test5-1.i[33021,33034] [2022-10-17 10:14:53,347 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_cb3ebe71-cfdb-4a34-9bcf-f4bcc3235047/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test5-1.i[49681,49694] [2022-10-17 10:14:53,350 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 10:14:53,424 INFO L208 MainTranslator]: Completed translation [2022-10-17 10:14:53,425 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:14:53 WrapperNode [2022-10-17 10:14:53,425 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-17 10:14:53,426 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-17 10:14:53,427 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-17 10:14:53,427 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-17 10:14:53,435 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:14:53" (1/1) ... [2022-10-17 10:14:53,477 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:14:53" (1/1) ... [2022-10-17 10:14:53,553 INFO L138 Inliner]: procedures = 180, calls = 388, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1414 [2022-10-17 10:14:53,553 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-17 10:14:53,554 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-17 10:14:53,554 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-17 10:14:53,555 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-17 10:14:53,565 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:14:53" (1/1) ... [2022-10-17 10:14:53,565 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:14:53" (1/1) ... [2022-10-17 10:14:53,581 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:14:53" (1/1) ... [2022-10-17 10:14:53,582 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:14:53" (1/1) ... [2022-10-17 10:14:53,687 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:14:53" (1/1) ... [2022-10-17 10:14:53,705 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:14:53" (1/1) ... [2022-10-17 10:14:53,711 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:14:53" (1/1) ... [2022-10-17 10:14:53,719 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:14:53" (1/1) ... [2022-10-17 10:14:53,733 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-17 10:14:53,734 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-17 10:14:53,734 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-17 10:14:53,734 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-17 10:14:53,735 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:14:53" (1/1) ... [2022-10-17 10:14:53,743 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-17 10:14:53,760 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb3ebe71-cfdb-4a34-9bcf-f4bcc3235047/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:14:53,790 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb3ebe71-cfdb-4a34-9bcf-f4bcc3235047/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-10-17 10:14:53,808 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb3ebe71-cfdb-4a34-9bcf-f4bcc3235047/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-10-17 10:14:53,844 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2022-10-17 10:14:53,845 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-10-17 10:14:53,845 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-10-17 10:14:53,845 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-10-17 10:14:53,845 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-10-17 10:14:53,846 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-10-17 10:14:53,846 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-10-17 10:14:53,846 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-17 10:14:53,846 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-10-17 10:14:53,848 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-10-17 10:14:53,848 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2022-10-17 10:14:53,848 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-10-17 10:14:53,848 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-10-17 10:14:53,849 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-10-17 10:14:53,849 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-10-17 10:14:53,849 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-17 10:14:53,849 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-17 10:14:54,195 INFO L235 CfgBuilder]: Building ICFG [2022-10-17 10:14:54,197 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-17 10:14:54,202 WARN L816 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-10-17 10:15:02,122 INFO L276 CfgBuilder]: Performing block encoding [2022-10-17 10:15:02,146 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-17 10:15:02,146 INFO L300 CfgBuilder]: Removed 83 assume(true) statements. [2022-10-17 10:15:02,151 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 10:15:02 BoogieIcfgContainer [2022-10-17 10:15:02,151 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-17 10:15:02,153 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-17 10:15:02,154 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-17 10:15:02,157 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-17 10:15:02,157 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.10 10:14:52" (1/3) ... [2022-10-17 10:15:02,158 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@753cab0e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.10 10:15:02, skipping insertion in model container [2022-10-17 10:15:02,158 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:14:53" (2/3) ... [2022-10-17 10:15:02,159 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@753cab0e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.10 10:15:02, skipping insertion in model container [2022-10-17 10:15:02,159 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 10:15:02" (3/3) ... [2022-10-17 10:15:02,160 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_SFH_test5-1.i [2022-10-17 10:15:02,180 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-17 10:15:02,181 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 729 error locations. [2022-10-17 10:15:02,263 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-17 10:15:02,271 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;@9206d4c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-17 10:15:02,271 INFO L358 AbstractCegarLoop]: Starting to check reachability of 729 error locations. [2022-10-17 10:15:02,281 INFO L276 IsEmpty]: Start isEmpty. Operand has 1456 states, 719 states have (on average 2.2378303198887344) internal successors, (1609), 1447 states have internal predecessors, (1609), 11 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2022-10-17 10:15:02,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-10-17 10:15:02,287 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:15:02,288 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-10-17 10:15:02,289 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 726 more)] === [2022-10-17 10:15:02,294 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:15:02,295 INFO L85 PathProgramCache]: Analyzing trace with hash 37287509, now seen corresponding path program 1 times [2022-10-17 10:15:02,307 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-10-17 10:15:02,308 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1251078095] [2022-10-17 10:15:02,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:15:02,309 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-10-17 10:15:02,309 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb3ebe71-cfdb-4a34-9bcf-f4bcc3235047/bin/uautomizer-J5u9QxTXDZ/mathsat [2022-10-17 10:15:02,312 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb3ebe71-cfdb-4a34-9bcf-f4bcc3235047/bin/uautomizer-J5u9QxTXDZ/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-10-17 10:15:02,346 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb3ebe71-cfdb-4a34-9bcf-f4bcc3235047/bin/uautomizer-J5u9QxTXDZ/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-10-17 10:15:02,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:15:02,542 INFO L263 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 1 conjunts are in the unsatisfiable core [2022-10-17 10:15:02,562 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 10:15:02,585 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 10:15:02,585 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-17 10:15:02,586 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-10-17 10:15:02,587 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1251078095] [2022-10-17 10:15:02,587 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1251078095] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:15:02,588 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:15:02,588 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-17 10:15:02,590 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1128367153] [2022-10-17 10:15:02,591 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:15:02,596 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-10-17 10:15:02,597 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-10-17 10:15:02,646 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-10-17 10:15:02,646 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-10-17 10:15:02,655 INFO L87 Difference]: Start difference. First operand has 1456 states, 719 states have (on average 2.2378303198887344) internal successors, (1609), 1447 states have internal predecessors, (1609), 11 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) Second operand has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:15:02,750 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:15:02,751 INFO L93 Difference]: Finished difference Result 1438 states and 1521 transitions. [2022-10-17 10:15:02,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-17 10:15:02,753 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2022-10-17 10:15:02,753 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 10:15:02,786 INFO L225 Difference]: With dead ends: 1438 [2022-10-17 10:15:02,787 INFO L226 Difference]: Without dead ends: 1436 [2022-10-17 10:15:02,789 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-10-17 10:15:02,793 INFO L413 NwaCegarLoop]: 1521 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1521 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-17 10:15:02,794 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1521 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-17 10:15:02,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1436 states. [2022-10-17 10:15:02,904 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1436 to 1436. [2022-10-17 10:15:02,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1436 states, 710 states have (on average 2.108450704225352) internal successors, (1497), 1427 states have internal predecessors, (1497), 11 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2022-10-17 10:15:02,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1436 states to 1436 states and 1519 transitions. [2022-10-17 10:15:02,921 INFO L78 Accepts]: Start accepts. Automaton has 1436 states and 1519 transitions. Word has length 5 [2022-10-17 10:15:02,922 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 10:15:02,922 INFO L495 AbstractCegarLoop]: Abstraction has 1436 states and 1519 transitions. [2022-10-17 10:15:02,922 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:15:02,923 INFO L276 IsEmpty]: Start isEmpty. Operand 1436 states and 1519 transitions. [2022-10-17 10:15:02,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-10-17 10:15:02,923 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:15:02,923 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-10-17 10:15:02,939 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb3ebe71-cfdb-4a34-9bcf-f4bcc3235047/bin/uautomizer-J5u9QxTXDZ/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-10-17 10:15:03,128 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb3ebe71-cfdb-4a34-9bcf-f4bcc3235047/bin/uautomizer-J5u9QxTXDZ/mathsat -unsat_core_generation=3 [2022-10-17 10:15:03,128 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 726 more)] === [2022-10-17 10:15:03,129 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:15:03,129 INFO L85 PathProgramCache]: Analyzing trace with hash 37287571, now seen corresponding path program 1 times [2022-10-17 10:15:03,130 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-10-17 10:15:03,130 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [295291697] [2022-10-17 10:15:03,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:15:03,131 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-10-17 10:15:03,131 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb3ebe71-cfdb-4a34-9bcf-f4bcc3235047/bin/uautomizer-J5u9QxTXDZ/mathsat [2022-10-17 10:15:03,136 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb3ebe71-cfdb-4a34-9bcf-f4bcc3235047/bin/uautomizer-J5u9QxTXDZ/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-10-17 10:15:03,140 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb3ebe71-cfdb-4a34-9bcf-f4bcc3235047/bin/uautomizer-J5u9QxTXDZ/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-10-17 10:15:03,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:15:03,380 INFO L263 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-17 10:15:03,383 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 10:15:03,438 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 10:15:03,470 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 10:15:03,470 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-17 10:15:03,470 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-10-17 10:15:03,471 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [295291697] [2022-10-17 10:15:03,471 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [295291697] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:15:03,471 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:15:03,472 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-17 10:15:03,472 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [353334237] [2022-10-17 10:15:03,472 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:15:03,473 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-17 10:15:03,474 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-10-17 10:15:03,474 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-17 10:15:03,475 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-17 10:15:03,475 INFO L87 Difference]: Start difference. First operand 1436 states and 1519 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:15:07,183 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:15:07,183 INFO L93 Difference]: Finished difference Result 1692 states and 1818 transitions. [2022-10-17 10:15:07,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-17 10:15:07,184 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2022-10-17 10:15:07,184 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 10:15:07,203 INFO L225 Difference]: With dead ends: 1692 [2022-10-17 10:15:07,204 INFO L226 Difference]: Without dead ends: 1692 [2022-10-17 10:15:07,204 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-17 10:15:07,209 INFO L413 NwaCegarLoop]: 957 mSDtfsCounter, 1369 mSDsluCounter, 264 mSDsCounter, 0 mSdLazyCounter, 881 mSolverCounterSat, 102 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1380 SdHoareTripleChecker+Valid, 1221 SdHoareTripleChecker+Invalid, 983 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 102 IncrementalHoareTripleChecker+Valid, 881 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2022-10-17 10:15:07,211 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1380 Valid, 1221 Invalid, 983 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [102 Valid, 881 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2022-10-17 10:15:07,221 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1692 states. [2022-10-17 10:15:07,269 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1692 to 1421. [2022-10-17 10:15:07,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1421 states, 786 states have (on average 1.960559796437659) internal successors, (1541), 1412 states have internal predecessors, (1541), 11 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2022-10-17 10:15:07,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1421 states to 1421 states and 1563 transitions. [2022-10-17 10:15:07,284 INFO L78 Accepts]: Start accepts. Automaton has 1421 states and 1563 transitions. Word has length 5 [2022-10-17 10:15:07,285 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 10:15:07,285 INFO L495 AbstractCegarLoop]: Abstraction has 1421 states and 1563 transitions. [2022-10-17 10:15:07,285 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:15:07,285 INFO L276 IsEmpty]: Start isEmpty. Operand 1421 states and 1563 transitions. [2022-10-17 10:15:07,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-10-17 10:15:07,286 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:15:07,286 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-10-17 10:15:07,305 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb3ebe71-cfdb-4a34-9bcf-f4bcc3235047/bin/uautomizer-J5u9QxTXDZ/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-10-17 10:15:07,499 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb3ebe71-cfdb-4a34-9bcf-f4bcc3235047/bin/uautomizer-J5u9QxTXDZ/mathsat -unsat_core_generation=3 [2022-10-17 10:15:07,500 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 726 more)] === [2022-10-17 10:15:07,501 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:15:07,501 INFO L85 PathProgramCache]: Analyzing trace with hash 37287572, now seen corresponding path program 1 times [2022-10-17 10:15:07,502 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-10-17 10:15:07,502 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1105610616] [2022-10-17 10:15:07,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:15:07,503 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-10-17 10:15:07,503 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb3ebe71-cfdb-4a34-9bcf-f4bcc3235047/bin/uautomizer-J5u9QxTXDZ/mathsat [2022-10-17 10:15:07,504 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb3ebe71-cfdb-4a34-9bcf-f4bcc3235047/bin/uautomizer-J5u9QxTXDZ/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-10-17 10:15:07,509 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb3ebe71-cfdb-4a34-9bcf-f4bcc3235047/bin/uautomizer-J5u9QxTXDZ/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-10-17 10:15:07,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:15:07,657 INFO L263 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 4 conjunts are in the unsatisfiable core [2022-10-17 10:15:07,660 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 10:15:07,686 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 10:15:07,742 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 10:15:07,742 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-17 10:15:07,742 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-10-17 10:15:07,743 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1105610616] [2022-10-17 10:15:07,743 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1105610616] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:15:07,743 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:15:07,743 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-17 10:15:07,743 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [847759485] [2022-10-17 10:15:07,744 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:15:07,744 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-17 10:15:07,744 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-10-17 10:15:07,745 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-17 10:15:07,745 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-17 10:15:07,745 INFO L87 Difference]: Start difference. First operand 1421 states and 1563 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:15:12,463 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:15:12,463 INFO L93 Difference]: Finished difference Result 1943 states and 2134 transitions. [2022-10-17 10:15:12,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-17 10:15:12,464 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2022-10-17 10:15:12,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 10:15:12,487 INFO L225 Difference]: With dead ends: 1943 [2022-10-17 10:15:12,488 INFO L226 Difference]: Without dead ends: 1943 [2022-10-17 10:15:12,488 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-17 10:15:12,489 INFO L413 NwaCegarLoop]: 1351 mSDtfsCounter, 743 mSDsluCounter, 605 mSDsCounter, 0 mSdLazyCounter, 958 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 748 SdHoareTripleChecker+Valid, 1956 SdHoareTripleChecker+Invalid, 981 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 958 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2022-10-17 10:15:12,490 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [748 Valid, 1956 Invalid, 981 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 958 Invalid, 0 Unknown, 0 Unchecked, 4.6s Time] [2022-10-17 10:15:12,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1943 states. [2022-10-17 10:15:12,527 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1943 to 1577. [2022-10-17 10:15:12,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1577 states, 952 states have (on average 1.940126050420168) internal successors, (1847), 1568 states have internal predecessors, (1847), 11 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2022-10-17 10:15:12,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1577 states to 1577 states and 1869 transitions. [2022-10-17 10:15:12,540 INFO L78 Accepts]: Start accepts. Automaton has 1577 states and 1869 transitions. Word has length 5 [2022-10-17 10:15:12,540 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 10:15:12,540 INFO L495 AbstractCegarLoop]: Abstraction has 1577 states and 1869 transitions. [2022-10-17 10:15:12,540 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:15:12,541 INFO L276 IsEmpty]: Start isEmpty. Operand 1577 states and 1869 transitions. [2022-10-17 10:15:12,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-10-17 10:15:12,541 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:15:12,542 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-10-17 10:15:12,561 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb3ebe71-cfdb-4a34-9bcf-f4bcc3235047/bin/uautomizer-J5u9QxTXDZ/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2022-10-17 10:15:12,753 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb3ebe71-cfdb-4a34-9bcf-f4bcc3235047/bin/uautomizer-J5u9QxTXDZ/mathsat -unsat_core_generation=3 [2022-10-17 10:15:12,754 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr640REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 726 more)] === [2022-10-17 10:15:12,755 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:15:12,755 INFO L85 PathProgramCache]: Analyzing trace with hash 1157601995, now seen corresponding path program 1 times [2022-10-17 10:15:12,755 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-10-17 10:15:12,755 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [84700880] [2022-10-17 10:15:12,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:15:12,756 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-10-17 10:15:12,756 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb3ebe71-cfdb-4a34-9bcf-f4bcc3235047/bin/uautomizer-J5u9QxTXDZ/mathsat [2022-10-17 10:15:12,760 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb3ebe71-cfdb-4a34-9bcf-f4bcc3235047/bin/uautomizer-J5u9QxTXDZ/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-10-17 10:15:12,761 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb3ebe71-cfdb-4a34-9bcf-f4bcc3235047/bin/uautomizer-J5u9QxTXDZ/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-10-17 10:15:12,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:15:12,866 INFO L263 TraceCheckSpWp]: Trace formula consists of 32 conjuncts, 2 conjunts are in the unsatisfiable core [2022-10-17 10:15:12,869 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 10:15:12,880 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 10:15:12,880 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-17 10:15:12,880 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-10-17 10:15:12,881 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [84700880] [2022-10-17 10:15:12,881 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [84700880] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:15:12,881 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:15:12,881 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-17 10:15:12,882 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1898816471] [2022-10-17 10:15:12,882 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:15:12,882 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-17 10:15:12,882 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-10-17 10:15:12,883 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-17 10:15:12,883 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-17 10:15:12,883 INFO L87 Difference]: Start difference. First operand 1577 states and 1869 transitions. Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 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 10:15:13,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:15:13,082 INFO L93 Difference]: Finished difference Result 3137 states and 3721 transitions. [2022-10-17 10:15:13,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-17 10:15:13,086 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 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 6 [2022-10-17 10:15:13,086 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 10:15:13,103 INFO L225 Difference]: With dead ends: 3137 [2022-10-17 10:15:13,103 INFO L226 Difference]: Without dead ends: 3137 [2022-10-17 10:15:13,104 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 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 10:15:13,108 INFO L413 NwaCegarLoop]: 1922 mSDtfsCounter, 1377 mSDsluCounter, 1408 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1388 SdHoareTripleChecker+Valid, 3330 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-17 10:15:13,109 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1388 Valid, 3330 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-17 10:15:13,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3137 states. [2022-10-17 10:15:13,168 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3137 to 1579. [2022-10-17 10:15:13,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1579 states, 954 states have (on average 1.9381551362683438) internal successors, (1849), 1570 states have internal predecessors, (1849), 11 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2022-10-17 10:15:13,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1579 states to 1579 states and 1871 transitions. [2022-10-17 10:15:13,183 INFO L78 Accepts]: Start accepts. Automaton has 1579 states and 1871 transitions. Word has length 6 [2022-10-17 10:15:13,183 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 10:15:13,183 INFO L495 AbstractCegarLoop]: Abstraction has 1579 states and 1871 transitions. [2022-10-17 10:15:13,184 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 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 10:15:13,184 INFO L276 IsEmpty]: Start isEmpty. Operand 1579 states and 1871 transitions. [2022-10-17 10:15:13,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-10-17 10:15:13,185 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:15:13,191 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:15:13,210 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb3ebe71-cfdb-4a34-9bcf-f4bcc3235047/bin/uautomizer-J5u9QxTXDZ/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2022-10-17 10:15:13,401 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb3ebe71-cfdb-4a34-9bcf-f4bcc3235047/bin/uautomizer-J5u9QxTXDZ/mathsat -unsat_core_generation=3 [2022-10-17 10:15:13,402 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 726 more)] === [2022-10-17 10:15:13,402 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:15:13,402 INFO L85 PathProgramCache]: Analyzing trace with hash 334651453, now seen corresponding path program 1 times [2022-10-17 10:15:13,403 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-10-17 10:15:13,403 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [859096667] [2022-10-17 10:15:13,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:15:13,403 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-10-17 10:15:13,403 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb3ebe71-cfdb-4a34-9bcf-f4bcc3235047/bin/uautomizer-J5u9QxTXDZ/mathsat [2022-10-17 10:15:13,406 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb3ebe71-cfdb-4a34-9bcf-f4bcc3235047/bin/uautomizer-J5u9QxTXDZ/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-10-17 10:15:13,409 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb3ebe71-cfdb-4a34-9bcf-f4bcc3235047/bin/uautomizer-J5u9QxTXDZ/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-10-17 10:15:13,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:15:13,611 INFO L263 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 2 conjunts are in the unsatisfiable core [2022-10-17 10:15:13,613 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 10:15:13,623 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 10:15:13,623 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-17 10:15:13,624 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-10-17 10:15:13,624 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [859096667] [2022-10-17 10:15:13,624 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [859096667] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:15:13,624 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:15:13,624 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-17 10:15:13,624 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1817758677] [2022-10-17 10:15:13,624 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:15:13,625 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-17 10:15:13,625 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-10-17 10:15:13,625 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-17 10:15:13,625 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-17 10:15:13,626 INFO L87 Difference]: Start difference. First operand 1579 states and 1871 transitions. Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 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) [2022-10-17 10:15:13,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:15:13,672 INFO L93 Difference]: Finished difference Result 1543 states and 1834 transitions. [2022-10-17 10:15:13,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-17 10:15:13,673 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 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) Word has length 11 [2022-10-17 10:15:13,673 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 10:15:13,682 INFO L225 Difference]: With dead ends: 1543 [2022-10-17 10:15:13,682 INFO L226 Difference]: Without dead ends: 1543 [2022-10-17 10:15:13,683 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 9 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 10:15:13,683 INFO L413 NwaCegarLoop]: 1370 mSDtfsCounter, 1340 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1351 SdHoareTripleChecker+Valid, 1398 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-17 10:15:13,684 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1351 Valid, 1398 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-17 10:15:13,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1543 states. [2022-10-17 10:15:13,719 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1543 to 1537. [2022-10-17 10:15:13,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1537 states, 936 states have (on average 1.9294871794871795) internal successors, (1806), 1528 states have internal predecessors, (1806), 11 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2022-10-17 10:15:13,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1537 states to 1537 states and 1828 transitions. [2022-10-17 10:15:13,731 INFO L78 Accepts]: Start accepts. Automaton has 1537 states and 1828 transitions. Word has length 11 [2022-10-17 10:15:13,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 10:15:13,731 INFO L495 AbstractCegarLoop]: Abstraction has 1537 states and 1828 transitions. [2022-10-17 10:15:13,732 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 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) [2022-10-17 10:15:13,732 INFO L276 IsEmpty]: Start isEmpty. Operand 1537 states and 1828 transitions. [2022-10-17 10:15:13,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-10-17 10:15:13,733 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:15:13,733 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:15:13,755 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb3ebe71-cfdb-4a34-9bcf-f4bcc3235047/bin/uautomizer-J5u9QxTXDZ/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2022-10-17 10:15:13,955 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb3ebe71-cfdb-4a34-9bcf-f4bcc3235047/bin/uautomizer-J5u9QxTXDZ/mathsat -unsat_core_generation=3 [2022-10-17 10:15:13,955 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr28REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 726 more)] === [2022-10-17 10:15:13,956 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:15:13,956 INFO L85 PathProgramCache]: Analyzing trace with hash -522505033, now seen corresponding path program 1 times [2022-10-17 10:15:13,956 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-10-17 10:15:13,956 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [960683028] [2022-10-17 10:15:13,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:15:13,957 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-10-17 10:15:13,957 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb3ebe71-cfdb-4a34-9bcf-f4bcc3235047/bin/uautomizer-J5u9QxTXDZ/mathsat [2022-10-17 10:15:13,958 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb3ebe71-cfdb-4a34-9bcf-f4bcc3235047/bin/uautomizer-J5u9QxTXDZ/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-10-17 10:15:13,959 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb3ebe71-cfdb-4a34-9bcf-f4bcc3235047/bin/uautomizer-J5u9QxTXDZ/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2022-10-17 10:15:14,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:15:14,152 INFO L263 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-17 10:15:14,156 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 10:15:14,180 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 10:15:14,181 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-17 10:15:14,181 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-10-17 10:15:14,181 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [960683028] [2022-10-17 10:15:14,181 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [960683028] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:15:14,181 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:15:14,182 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-17 10:15:14,182 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1796037957] [2022-10-17 10:15:14,182 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:15:14,182 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-17 10:15:14,182 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-10-17 10:15:14,183 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-17 10:15:14,183 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-17 10:15:14,183 INFO L87 Difference]: Start difference. First operand 1537 states and 1828 transitions. Second operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 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 10:15:14,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:15:14,293 INFO L93 Difference]: Finished difference Result 1522 states and 1806 transitions. [2022-10-17 10:15:14,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-17 10:15:14,294 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 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 13 [2022-10-17 10:15:14,294 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 10:15:14,304 INFO L225 Difference]: With dead ends: 1522 [2022-10-17 10:15:14,304 INFO L226 Difference]: Without dead ends: 1522 [2022-10-17 10:15:14,305 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-17 10:15:14,305 INFO L413 NwaCegarLoop]: 1325 mSDtfsCounter, 1311 mSDsluCounter, 1346 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1322 SdHoareTripleChecker+Valid, 2671 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-17 10:15:14,306 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1322 Valid, 2671 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-17 10:15:14,311 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1522 states. [2022-10-17 10:15:14,339 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1522 to 1515. [2022-10-17 10:15:14,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1515 states, 928 states have (on average 1.9148706896551724) internal successors, (1777), 1506 states have internal predecessors, (1777), 11 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2022-10-17 10:15:14,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1515 states to 1515 states and 1799 transitions. [2022-10-17 10:15:14,352 INFO L78 Accepts]: Start accepts. Automaton has 1515 states and 1799 transitions. Word has length 13 [2022-10-17 10:15:14,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 10:15:14,353 INFO L495 AbstractCegarLoop]: Abstraction has 1515 states and 1799 transitions. [2022-10-17 10:15:14,353 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 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 10:15:14,354 INFO L276 IsEmpty]: Start isEmpty. Operand 1515 states and 1799 transitions. [2022-10-17 10:15:14,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-10-17 10:15:14,355 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:15:14,355 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:15:14,376 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb3ebe71-cfdb-4a34-9bcf-f4bcc3235047/bin/uautomizer-J5u9QxTXDZ/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2022-10-17 10:15:14,569 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb3ebe71-cfdb-4a34-9bcf-f4bcc3235047/bin/uautomizer-J5u9QxTXDZ/mathsat -unsat_core_generation=3 [2022-10-17 10:15:14,569 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr42REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 726 more)] === [2022-10-17 10:15:14,569 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:15:14,570 INFO L85 PathProgramCache]: Analyzing trace with hash -22216187, now seen corresponding path program 1 times [2022-10-17 10:15:14,570 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-10-17 10:15:14,570 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1663004395] [2022-10-17 10:15:14,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:15:14,571 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-10-17 10:15:14,571 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb3ebe71-cfdb-4a34-9bcf-f4bcc3235047/bin/uautomizer-J5u9QxTXDZ/mathsat [2022-10-17 10:15:14,572 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb3ebe71-cfdb-4a34-9bcf-f4bcc3235047/bin/uautomizer-J5u9QxTXDZ/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-10-17 10:15:14,592 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb3ebe71-cfdb-4a34-9bcf-f4bcc3235047/bin/uautomizer-J5u9QxTXDZ/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2022-10-17 10:15:14,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:15:14,775 INFO L263 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 4 conjunts are in the unsatisfiable core [2022-10-17 10:15:14,779 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 10:15:14,786 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 10:15:14,885 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 10:15:14,885 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-17 10:15:14,886 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-10-17 10:15:14,886 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1663004395] [2022-10-17 10:15:14,886 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1663004395] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:15:14,886 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:15:14,886 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-17 10:15:14,886 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1053825955] [2022-10-17 10:15:14,886 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:15:14,887 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-17 10:15:14,887 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-10-17 10:15:14,887 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-17 10:15:14,888 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-17 10:15:14,888 INFO L87 Difference]: Start difference. First operand 1515 states and 1799 transitions. Second operand has 4 states, 3 states have (on average 9.0) internal successors, (27), 4 states have internal predecessors, (27), 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)