./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/goblint-regression/06-symbeq_15-list_entry_nr.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version b5237d83 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ec3991c-902f-4ad8-a46c-e83fa378cad6/bin/uautomizer-vX5HgA9Q3a/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ec3991c-902f-4ad8-a46c-e83fa378cad6/bin/uautomizer-vX5HgA9Q3a/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ec3991c-902f-4ad8-a46c-e83fa378cad6/bin/uautomizer-vX5HgA9Q3a/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ec3991c-902f-4ad8-a46c-e83fa378cad6/bin/uautomizer-vX5HgA9Q3a/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/goblint-regression/06-symbeq_15-list_entry_nr.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ec3991c-902f-4ad8-a46c-e83fa378cad6/bin/uautomizer-vX5HgA9Q3a/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ec3991c-902f-4ad8-a46c-e83fa378cad6/bin/uautomizer-vX5HgA9Q3a --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 23d465ba9caf460ed15aca3aec6b262b1ee2c4f0003cc0e5fbc446c20cfe164a --- 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-b5237d8 [2022-11-21 13:54:05,476 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-21 13:54:05,479 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-21 13:54:05,514 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-21 13:54:05,514 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-21 13:54:05,515 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-21 13:54:05,517 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-21 13:54:05,532 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-21 13:54:05,534 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-21 13:54:05,535 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-21 13:54:05,536 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-21 13:54:05,537 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-21 13:54:05,538 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-21 13:54:05,539 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-21 13:54:05,540 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-21 13:54:05,541 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-21 13:54:05,542 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-21 13:54:05,546 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-21 13:54:05,547 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-21 13:54:05,550 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-21 13:54:05,556 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-21 13:54:05,559 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-21 13:54:05,560 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-21 13:54:05,561 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-21 13:54:05,568 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-21 13:54:05,569 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-21 13:54:05,572 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-21 13:54:05,573 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-21 13:54:05,574 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-21 13:54:05,575 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-21 13:54:05,575 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-21 13:54:05,576 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-21 13:54:05,577 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-21 13:54:05,579 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-21 13:54:05,580 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-21 13:54:05,581 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-21 13:54:05,583 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-21 13:54:05,583 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-21 13:54:05,584 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-21 13:54:05,585 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-21 13:54:05,587 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-21 13:54:05,588 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ec3991c-902f-4ad8-a46c-e83fa378cad6/bin/uautomizer-vX5HgA9Q3a/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2022-11-21 13:54:05,622 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-21 13:54:05,627 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-21 13:54:05,627 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-21 13:54:05,628 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-21 13:54:05,629 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-21 13:54:05,629 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-21 13:54:05,630 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-21 13:54:05,630 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-21 13:54:05,630 INFO L138 SettingsManager]: * Use SBE=true [2022-11-21 13:54:05,630 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-21 13:54:05,631 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-21 13:54:05,632 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-21 13:54:05,632 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-21 13:54:05,632 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-21 13:54:05,632 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-21 13:54:05,633 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-11-21 13:54:05,633 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-11-21 13:54:05,633 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-11-21 13:54:05,633 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-21 13:54:05,633 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-21 13:54:05,634 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-21 13:54:05,634 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-21 13:54:05,634 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-21 13:54:05,634 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-21 13:54:05,635 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-21 13:54:05,635 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 13:54:05,635 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-21 13:54:05,635 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-21 13:54:05,636 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-21 13:54:05,636 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-21 13:54:05,637 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_5ec3991c-902f-4ad8-a46c-e83fa378cad6/bin/uautomizer-vX5HgA9Q3a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ec3991c-902f-4ad8-a46c-e83fa378cad6/bin/uautomizer-vX5HgA9Q3a Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 23d465ba9caf460ed15aca3aec6b262b1ee2c4f0003cc0e5fbc446c20cfe164a [2022-11-21 13:54:05,947 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-21 13:54:05,971 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-21 13:54:05,974 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-21 13:54:05,975 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-21 13:54:05,977 INFO L275 PluginConnector]: CDTParser initialized [2022-11-21 13:54:05,979 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ec3991c-902f-4ad8-a46c-e83fa378cad6/bin/uautomizer-vX5HgA9Q3a/../../sv-benchmarks/c/goblint-regression/06-symbeq_15-list_entry_nr.i [2022-11-21 13:54:09,021 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-21 13:54:09,395 INFO L351 CDTParser]: Found 1 translation units. [2022-11-21 13:54:09,401 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ec3991c-902f-4ad8-a46c-e83fa378cad6/sv-benchmarks/c/goblint-regression/06-symbeq_15-list_entry_nr.i [2022-11-21 13:54:09,427 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ec3991c-902f-4ad8-a46c-e83fa378cad6/bin/uautomizer-vX5HgA9Q3a/data/dd88988c8/af5b54125d2e4af48ae94d7202ccfabd/FLAG0c3577449 [2022-11-21 13:54:09,454 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ec3991c-902f-4ad8-a46c-e83fa378cad6/bin/uautomizer-vX5HgA9Q3a/data/dd88988c8/af5b54125d2e4af48ae94d7202ccfabd [2022-11-21 13:54:09,457 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-21 13:54:09,459 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-21 13:54:09,463 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-21 13:54:09,463 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-21 13:54:09,467 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-21 13:54:09,471 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 01:54:09" (1/1) ... [2022-11-21 13:54:09,472 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@28b81855 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:54:09, skipping insertion in model container [2022-11-21 13:54:09,472 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 01:54:09" (1/1) ... [2022-11-21 13:54:09,481 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-21 13:54:09,546 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-21 13:54:10,233 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 13:54:10,247 ERROR L326 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types of different sizes while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2022-11-21 13:54:10,248 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@2af1aeae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:54:10, skipping insertion in model container [2022-11-21 13:54:10,248 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-21 13:54:10,248 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2022-11-21 13:54:10,250 INFO L158 Benchmark]: Toolchain (without parser) took 790.75ms. Allocated memory is still 174.1MB. Free memory was 140.6MB in the beginning and 136.3MB in the end (delta: 4.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-11-21 13:54:10,251 INFO L158 Benchmark]: CDTParser took 0.61ms. Allocated memory is still 130.0MB. Free memory is still 98.3MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-21 13:54:10,252 INFO L158 Benchmark]: CACSL2BoogieTranslator took 785.63ms. Allocated memory is still 174.1MB. Free memory was 140.6MB in the beginning and 136.3MB in the end (delta: 4.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-11-21 13:54:10,253 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.61ms. Allocated memory is still 130.0MB. Free memory is still 98.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 785.63ms. Allocated memory is still 174.1MB. Free memory was 140.6MB in the beginning and 136.3MB in the end (delta: 4.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 1233]: Unsupported Syntax Found a cast between two array/pointer types of different sizes while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ec3991c-902f-4ad8-a46c-e83fa378cad6/bin/uautomizer-vX5HgA9Q3a/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ec3991c-902f-4ad8-a46c-e83fa378cad6/bin/uautomizer-vX5HgA9Q3a/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ec3991c-902f-4ad8-a46c-e83fa378cad6/bin/uautomizer-vX5HgA9Q3a/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ec3991c-902f-4ad8-a46c-e83fa378cad6/bin/uautomizer-vX5HgA9Q3a/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/goblint-regression/06-symbeq_15-list_entry_nr.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ec3991c-902f-4ad8-a46c-e83fa378cad6/bin/uautomizer-vX5HgA9Q3a/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ec3991c-902f-4ad8-a46c-e83fa378cad6/bin/uautomizer-vX5HgA9Q3a --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 23d465ba9caf460ed15aca3aec6b262b1ee2c4f0003cc0e5fbc446c20cfe164a --- 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-b5237d8 [2022-11-21 13:54:12,667 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-21 13:54:12,670 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-21 13:54:12,719 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-21 13:54:12,720 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-21 13:54:12,725 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-21 13:54:12,728 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-21 13:54:12,733 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-21 13:54:12,736 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-21 13:54:12,742 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-21 13:54:12,744 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-21 13:54:12,747 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-21 13:54:12,749 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-21 13:54:12,752 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-21 13:54:12,754 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-21 13:54:12,758 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-21 13:54:12,763 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-21 13:54:12,764 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-21 13:54:12,766 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-21 13:54:12,771 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-21 13:54:12,772 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-21 13:54:12,774 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-21 13:54:12,776 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-21 13:54:12,777 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-21 13:54:12,785 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-21 13:54:12,785 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-21 13:54:12,787 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-21 13:54:12,788 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-21 13:54:12,790 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-21 13:54:12,791 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-21 13:54:12,791 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-21 13:54:12,792 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-21 13:54:12,793 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-21 13:54:12,808 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-21 13:54:12,810 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-21 13:54:12,810 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-21 13:54:12,811 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-21 13:54:12,811 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-21 13:54:12,812 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-21 13:54:12,813 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-21 13:54:12,813 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-21 13:54:12,816 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ec3991c-902f-4ad8-a46c-e83fa378cad6/bin/uautomizer-vX5HgA9Q3a/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2022-11-21 13:54:12,856 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-21 13:54:12,856 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-21 13:54:12,858 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-21 13:54:12,858 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-21 13:54:12,859 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-21 13:54:12,859 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-21 13:54:12,860 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-21 13:54:12,860 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-21 13:54:12,860 INFO L138 SettingsManager]: * Use SBE=true [2022-11-21 13:54:12,861 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-21 13:54:12,862 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-21 13:54:12,862 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-21 13:54:12,862 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-21 13:54:12,863 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-21 13:54:12,863 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-21 13:54:12,863 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-11-21 13:54:12,863 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-11-21 13:54:12,863 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-11-21 13:54:12,863 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-21 13:54:12,864 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-21 13:54:12,864 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-21 13:54:12,864 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-21 13:54:12,864 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-21 13:54:12,864 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-21 13:54:12,865 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-21 13:54:12,865 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-21 13:54:12,865 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-21 13:54:12,865 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 13:54:12,865 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-21 13:54:12,866 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-21 13:54:12,866 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-11-21 13:54:12,866 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-21 13:54:12,866 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-21 13:54:12,867 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_5ec3991c-902f-4ad8-a46c-e83fa378cad6/bin/uautomizer-vX5HgA9Q3a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ec3991c-902f-4ad8-a46c-e83fa378cad6/bin/uautomizer-vX5HgA9Q3a Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 23d465ba9caf460ed15aca3aec6b262b1ee2c4f0003cc0e5fbc446c20cfe164a [2022-11-21 13:54:13,312 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-21 13:54:13,338 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-21 13:54:13,341 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-21 13:54:13,343 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-21 13:54:13,343 INFO L275 PluginConnector]: CDTParser initialized [2022-11-21 13:54:13,345 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ec3991c-902f-4ad8-a46c-e83fa378cad6/bin/uautomizer-vX5HgA9Q3a/../../sv-benchmarks/c/goblint-regression/06-symbeq_15-list_entry_nr.i [2022-11-21 13:54:16,522 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-21 13:54:16,883 INFO L351 CDTParser]: Found 1 translation units. [2022-11-21 13:54:16,884 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ec3991c-902f-4ad8-a46c-e83fa378cad6/sv-benchmarks/c/goblint-regression/06-symbeq_15-list_entry_nr.i [2022-11-21 13:54:16,912 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ec3991c-902f-4ad8-a46c-e83fa378cad6/bin/uautomizer-vX5HgA9Q3a/data/b5fe95ff3/643f4321f7ae4f2084330738b370b4b8/FLAG05dba643c [2022-11-21 13:54:16,928 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ec3991c-902f-4ad8-a46c-e83fa378cad6/bin/uautomizer-vX5HgA9Q3a/data/b5fe95ff3/643f4321f7ae4f2084330738b370b4b8 [2022-11-21 13:54:16,931 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-21 13:54:16,932 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-21 13:54:16,934 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-21 13:54:16,934 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-21 13:54:16,938 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-21 13:54:16,939 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 01:54:16" (1/1) ... [2022-11-21 13:54:16,940 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@69b8cd74 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:54:16, skipping insertion in model container [2022-11-21 13:54:16,940 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 01:54:16" (1/1) ... [2022-11-21 13:54:16,948 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-21 13:54:17,020 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-21 13:54:17,835 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 13:54:17,852 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-11-21 13:54:17,866 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-21 13:54:17,937 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 13:54:17,944 INFO L203 MainTranslator]: Completed pre-run [2022-11-21 13:54:18,015 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 13:54:18,133 INFO L208 MainTranslator]: Completed translation [2022-11-21 13:54:18,134 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:54:18 WrapperNode [2022-11-21 13:54:18,134 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-21 13:54:18,136 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-21 13:54:18,136 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-21 13:54:18,136 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-21 13:54:18,144 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:54:18" (1/1) ... [2022-11-21 13:54:18,179 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:54:18" (1/1) ... [2022-11-21 13:54:18,224 INFO L138 Inliner]: procedures = 366, calls = 15, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 53 [2022-11-21 13:54:18,224 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-21 13:54:18,226 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-21 13:54:18,226 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-21 13:54:18,226 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-21 13:54:18,237 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:54:18" (1/1) ... [2022-11-21 13:54:18,237 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:54:18" (1/1) ... [2022-11-21 13:54:18,264 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:54:18" (1/1) ... [2022-11-21 13:54:18,265 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:54:18" (1/1) ... [2022-11-21 13:54:18,285 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:54:18" (1/1) ... [2022-11-21 13:54:18,287 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:54:18" (1/1) ... [2022-11-21 13:54:18,289 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:54:18" (1/1) ... [2022-11-21 13:54:18,291 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:54:18" (1/1) ... [2022-11-21 13:54:18,305 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-21 13:54:18,306 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-21 13:54:18,307 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-21 13:54:18,307 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-21 13:54:18,308 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:54:18" (1/1) ... [2022-11-21 13:54:18,322 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 13:54:18,335 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ec3991c-902f-4ad8-a46c-e83fa378cad6/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 13:54:18,352 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ec3991c-902f-4ad8-a46c-e83fa378cad6/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-21 13:54:18,364 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ec3991c-902f-4ad8-a46c-e83fa378cad6/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-21 13:54:18,402 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-11-21 13:54:18,402 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-21 13:54:18,402 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-21 13:54:18,402 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-11-21 13:54:18,402 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-21 13:54:18,402 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-21 13:54:18,403 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-11-21 13:54:18,403 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-11-21 13:54:18,403 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-21 13:54:18,403 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-21 13:54:18,404 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-21 13:54:18,620 INFO L235 CfgBuilder]: Building ICFG [2022-11-21 13:54:18,622 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-21 13:54:18,952 INFO L276 CfgBuilder]: Performing block encoding [2022-11-21 13:54:18,960 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-21 13:54:18,960 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-21 13:54:18,962 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 01:54:18 BoogieIcfgContainer [2022-11-21 13:54:18,963 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-21 13:54:18,965 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-21 13:54:18,965 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-21 13:54:18,968 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-21 13:54:18,969 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 01:54:16" (1/3) ... [2022-11-21 13:54:18,969 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8443925 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 01:54:18, skipping insertion in model container [2022-11-21 13:54:18,970 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:54:18" (2/3) ... [2022-11-21 13:54:18,970 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8443925 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 01:54:18, skipping insertion in model container [2022-11-21 13:54:18,970 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 01:54:18" (3/3) ... [2022-11-21 13:54:18,971 INFO L112 eAbstractionObserver]: Analyzing ICFG 06-symbeq_15-list_entry_nr.i [2022-11-21 13:54:18,991 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-21 13:54:18,991 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 13 error locations. [2022-11-21 13:54:18,992 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-21 13:54:19,104 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-21 13:54:19,154 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-21 13:54:19,187 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 86 places, 82 transitions, 169 flow [2022-11-21 13:54:19,190 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 86 places, 82 transitions, 169 flow [2022-11-21 13:54:19,191 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 86 places, 82 transitions, 169 flow [2022-11-21 13:54:19,266 INFO L130 PetriNetUnfolder]: 0/81 cut-off events. [2022-11-21 13:54:19,266 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-21 13:54:19,272 INFO L83 FinitePrefix]: Finished finitePrefix Result has 85 conditions, 81 events. 0/81 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 81 event pairs, 0 based on Foata normal form. 0/68 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2022-11-21 13:54:19,274 INFO L119 LiptonReduction]: Number of co-enabled transitions 1218 [2022-11-21 13:54:31,071 INFO L134 LiptonReduction]: Checked pairs total: 2515 [2022-11-21 13:54:31,072 INFO L136 LiptonReduction]: Total number of compositions: 96 [2022-11-21 13:54:31,080 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 29 places, 25 transitions, 55 flow [2022-11-21 13:54:31,132 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 103 states, 70 states have (on average 2.5714285714285716) internal successors, (180), 102 states have internal predecessors, (180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 13:54:31,162 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-21 13:54:31,171 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;@1aaf0c33, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-21 13:54:31,171 INFO L358 AbstractCegarLoop]: Starting to check reachability of 18 error locations. [2022-11-21 13:54:31,175 INFO L276 IsEmpty]: Start isEmpty. Operand has 103 states, 70 states have (on average 2.5714285714285716) internal successors, (180), 102 states have internal predecessors, (180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 13:54:31,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2 [2022-11-21 13:54:31,180 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 13:54:31,182 INFO L195 NwaCegarLoop]: trace histogram [1] [2022-11-21 13:54:31,182 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 15 more)] === [2022-11-21 13:54:31,191 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 13:54:31,191 INFO L85 PathProgramCache]: Analyzing trace with hash 311, now seen corresponding path program 1 times [2022-11-21 13:54:31,206 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-21 13:54:31,206 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1482628559] [2022-11-21 13:54:31,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 13:54:31,208 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-21 13:54:31,209 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ec3991c-902f-4ad8-a46c-e83fa378cad6/bin/uautomizer-vX5HgA9Q3a/mathsat [2022-11-21 13:54:31,214 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ec3991c-902f-4ad8-a46c-e83fa378cad6/bin/uautomizer-vX5HgA9Q3a/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-21 13:54:31,254 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ec3991c-902f-4ad8-a46c-e83fa378cad6/bin/uautomizer-vX5HgA9Q3a/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-11-21 13:54:31,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:54:31,308 INFO L263 TraceCheckSpWp]: Trace formula consists of 3 conjuncts, 1 conjunts are in the unsatisfiable core [2022-11-21 13:54:31,312 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 13:54:31,316 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 13:54:31,316 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-21 13:54:31,317 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-21 13:54:31,318 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1482628559] [2022-11-21 13:54:31,318 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1482628559] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 13:54:31,319 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 13:54:31,319 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-11-21 13:54:31,321 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2070235899] [2022-11-21 13:54:31,335 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 13:54:31,339 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-21 13:54:31,340 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-21 13:54:31,366 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-21 13:54:31,367 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-21 13:54:31,369 INFO L87 Difference]: Start difference. First operand has 103 states, 70 states have (on average 2.5714285714285716) internal successors, (180), 102 states have internal predecessors, (180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 13:54:31,465 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 13:54:31,465 INFO L93 Difference]: Finished difference Result 72 states and 125 transitions. [2022-11-21 13:54:31,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-21 13:54:31,468 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 1 [2022-11-21 13:54:31,468 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 13:54:31,477 INFO L225 Difference]: With dead ends: 72 [2022-11-21 13:54:31,478 INFO L226 Difference]: Without dead ends: 72 [2022-11-21 13:54:31,479 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-21 13:54:31,483 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-21 13:54:31,484 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 2 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-21 13:54:31,503 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2022-11-21 13:54:31,521 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 72. [2022-11-21 13:54:31,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72 states, 57 states have (on average 2.192982456140351) internal successors, (125), 71 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 13:54:31,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 125 transitions. [2022-11-21 13:54:31,527 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 125 transitions. Word has length 1 [2022-11-21 13:54:31,528 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 13:54:31,528 INFO L495 AbstractCegarLoop]: Abstraction has 72 states and 125 transitions. [2022-11-21 13:54:31,528 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 13:54:31,528 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 125 transitions. [2022-11-21 13:54:31,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-11-21 13:54:31,529 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 13:54:31,529 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2022-11-21 13:54:31,564 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ec3991c-902f-4ad8-a46c-e83fa378cad6/bin/uautomizer-vX5HgA9Q3a/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-11-21 13:54:31,754 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ec3991c-902f-4ad8-a46c-e83fa378cad6/bin/uautomizer-vX5HgA9Q3a/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-21 13:54:31,755 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 15 more)] === [2022-11-21 13:54:31,755 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 13:54:31,755 INFO L85 PathProgramCache]: Analyzing trace with hash 307887, now seen corresponding path program 1 times [2022-11-21 13:54:31,756 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-21 13:54:31,756 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [399412094] [2022-11-21 13:54:31,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 13:54:31,757 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-21 13:54:31,757 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ec3991c-902f-4ad8-a46c-e83fa378cad6/bin/uautomizer-vX5HgA9Q3a/mathsat [2022-11-21 13:54:31,778 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ec3991c-902f-4ad8-a46c-e83fa378cad6/bin/uautomizer-vX5HgA9Q3a/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-21 13:54:31,814 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ec3991c-902f-4ad8-a46c-e83fa378cad6/bin/uautomizer-vX5HgA9Q3a/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-11-21 13:54:31,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:54:31,941 INFO L263 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-21 13:54:31,943 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 13:54:32,031 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-11-21 13:54:32,032 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 9 treesize of output 15 [2022-11-21 13:54:32,059 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 13:54:32,059 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-21 13:54:32,060 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-21 13:54:32,060 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [399412094] [2022-11-21 13:54:32,060 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [399412094] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 13:54:32,060 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 13:54:32,060 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-21 13:54:32,061 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [341849813] [2022-11-21 13:54:32,061 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 13:54:32,062 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 13:54:32,062 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-21 13:54:32,063 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 13:54:32,063 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 13:54:32,063 INFO L87 Difference]: Start difference. First operand 72 states and 125 transitions. Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 13:54:32,133 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 13:54:32,133 INFO L93 Difference]: Finished difference Result 56 states and 95 transitions. [2022-11-21 13:54:32,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 13:54:32,134 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2022-11-21 13:54:32,134 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 13:54:32,135 INFO L225 Difference]: With dead ends: 56 [2022-11-21 13:54:32,135 INFO L226 Difference]: Without dead ends: 56 [2022-11-21 13:54:32,135 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 13:54:32,136 INFO L413 NwaCegarLoop]: 1 mSDtfsCounter, 13 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 1 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-21 13:54:32,137 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 1 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-21 13:54:32,138 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2022-11-21 13:54:32,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 56. [2022-11-21 13:54:32,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56 states, 48 states have (on average 1.9791666666666667) internal successors, (95), 55 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 13:54:32,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 95 transitions. [2022-11-21 13:54:32,145 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 95 transitions. Word has length 3 [2022-11-21 13:54:32,145 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 13:54:32,145 INFO L495 AbstractCegarLoop]: Abstraction has 56 states and 95 transitions. [2022-11-21 13:54:32,145 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 13:54:32,146 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 95 transitions. [2022-11-21 13:54:32,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-11-21 13:54:32,146 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 13:54:32,146 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2022-11-21 13:54:32,160 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ec3991c-902f-4ad8-a46c-e83fa378cad6/bin/uautomizer-vX5HgA9Q3a/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-11-21 13:54:32,358 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ec3991c-902f-4ad8-a46c-e83fa378cad6/bin/uautomizer-vX5HgA9Q3a/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-21 13:54:32,359 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 15 more)] === [2022-11-21 13:54:32,359 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 13:54:32,359 INFO L85 PathProgramCache]: Analyzing trace with hash 307889, now seen corresponding path program 1 times [2022-11-21 13:54:32,360 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-21 13:54:32,360 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1941344229] [2022-11-21 13:54:32,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 13:54:32,360 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-21 13:54:32,360 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ec3991c-902f-4ad8-a46c-e83fa378cad6/bin/uautomizer-vX5HgA9Q3a/mathsat [2022-11-21 13:54:32,361 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ec3991c-902f-4ad8-a46c-e83fa378cad6/bin/uautomizer-vX5HgA9Q3a/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-21 13:54:32,367 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ec3991c-902f-4ad8-a46c-e83fa378cad6/bin/uautomizer-vX5HgA9Q3a/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-11-21 13:54:32,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:54:32,472 INFO L263 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-21 13:54:32,474 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 13:54:32,503 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-11-21 13:54:32,503 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 9 treesize of output 19 [2022-11-21 13:54:32,517 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 13:54:32,517 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-21 13:54:32,517 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-21 13:54:32,518 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1941344229] [2022-11-21 13:54:32,518 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1941344229] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 13:54:32,518 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 13:54:32,518 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-21 13:54:32,519 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1675989715] [2022-11-21 13:54:32,520 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 13:54:32,520 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 13:54:32,520 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-21 13:54:32,521 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 13:54:32,521 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 13:54:32,522 INFO L87 Difference]: Start difference. First operand 56 states and 95 transitions. Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 13:54:32,609 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 13:54:32,609 INFO L93 Difference]: Finished difference Result 49 states and 82 transitions. [2022-11-21 13:54:32,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 13:54:32,610 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2022-11-21 13:54:32,610 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 13:54:32,611 INFO L225 Difference]: With dead ends: 49 [2022-11-21 13:54:32,611 INFO L226 Difference]: Without dead ends: 49 [2022-11-21 13:54:32,611 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 13:54:32,612 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 10 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-21 13:54:32,613 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 0 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-21 13:54:32,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2022-11-21 13:54:32,617 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 49. [2022-11-21 13:54:32,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49 states, 44 states have (on average 1.8636363636363635) internal successors, (82), 48 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 13:54:32,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 82 transitions. [2022-11-21 13:54:32,618 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 82 transitions. Word has length 3 [2022-11-21 13:54:32,618 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 13:54:32,618 INFO L495 AbstractCegarLoop]: Abstraction has 49 states and 82 transitions. [2022-11-21 13:54:32,618 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 13:54:32,619 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 82 transitions. [2022-11-21 13:54:32,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-11-21 13:54:32,619 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 13:54:32,619 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-11-21 13:54:32,636 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ec3991c-902f-4ad8-a46c-e83fa378cad6/bin/uautomizer-vX5HgA9Q3a/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2022-11-21 13:54:32,831 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ec3991c-902f-4ad8-a46c-e83fa378cad6/bin/uautomizer-vX5HgA9Q3a/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-21 13:54:32,831 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 15 more)] === [2022-11-21 13:54:32,832 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 13:54:32,832 INFO L85 PathProgramCache]: Analyzing trace with hash 9544549, now seen corresponding path program 1 times [2022-11-21 13:54:32,832 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-21 13:54:32,832 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2087685062] [2022-11-21 13:54:32,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 13:54:32,833 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-21 13:54:32,833 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ec3991c-902f-4ad8-a46c-e83fa378cad6/bin/uautomizer-vX5HgA9Q3a/mathsat [2022-11-21 13:54:32,835 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ec3991c-902f-4ad8-a46c-e83fa378cad6/bin/uautomizer-vX5HgA9Q3a/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-21 13:54:32,875 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ec3991c-902f-4ad8-a46c-e83fa378cad6/bin/uautomizer-vX5HgA9Q3a/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-11-21 13:54:32,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:54:32,929 INFO L263 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-21 13:54:32,931 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 13:54:32,956 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-11-21 13:54:32,956 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 9 treesize of output 19 [2022-11-21 13:54:32,990 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 13:54:32,991 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-21 13:54:32,991 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-21 13:54:32,992 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2087685062] [2022-11-21 13:54:32,992 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2087685062] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 13:54:32,993 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 13:54:32,993 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-21 13:54:32,993 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1162601692] [2022-11-21 13:54:32,993 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 13:54:32,993 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-21 13:54:32,994 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-21 13:54:32,994 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-21 13:54:32,995 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-21 13:54:32,995 INFO L87 Difference]: Start difference. First operand 49 states and 82 transitions. Second operand has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 13:54:33,157 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 13:54:33,158 INFO L93 Difference]: Finished difference Result 43 states and 62 transitions. [2022-11-21 13:54:33,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-21 13:54:33,159 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 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 4 [2022-11-21 13:54:33,159 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 13:54:33,159 INFO L225 Difference]: With dead ends: 43 [2022-11-21 13:54:33,159 INFO L226 Difference]: Without dead ends: 42 [2022-11-21 13:54:33,160 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-21 13:54:33,161 INFO L413 NwaCegarLoop]: 1 mSDtfsCounter, 17 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 1 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-21 13:54:33,162 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 1 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-21 13:54:33,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2022-11-21 13:54:33,166 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 40. [2022-11-21 13:54:33,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40 states, 35 states have (on average 1.7142857142857142) internal successors, (60), 39 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 13:54:33,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 60 transitions. [2022-11-21 13:54:33,167 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 60 transitions. Word has length 4 [2022-11-21 13:54:33,167 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 13:54:33,167 INFO L495 AbstractCegarLoop]: Abstraction has 40 states and 60 transitions. [2022-11-21 13:54:33,167 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 13:54:33,168 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 60 transitions. [2022-11-21 13:54:33,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-21 13:54:33,168 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 13:54:33,168 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-21 13:54:33,186 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ec3991c-902f-4ad8-a46c-e83fa378cad6/bin/uautomizer-vX5HgA9Q3a/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2022-11-21 13:54:33,369 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ec3991c-902f-4ad8-a46c-e83fa378cad6/bin/uautomizer-vX5HgA9Q3a/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-21 13:54:33,369 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 15 more)] === [2022-11-21 13:54:33,369 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 13:54:33,370 INFO L85 PathProgramCache]: Analyzing trace with hash 876796665, now seen corresponding path program 1 times [2022-11-21 13:54:33,370 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-21 13:54:33,370 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [649381762] [2022-11-21 13:54:33,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 13:54:33,371 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-21 13:54:33,371 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ec3991c-902f-4ad8-a46c-e83fa378cad6/bin/uautomizer-vX5HgA9Q3a/mathsat [2022-11-21 13:54:33,373 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ec3991c-902f-4ad8-a46c-e83fa378cad6/bin/uautomizer-vX5HgA9Q3a/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-21 13:54:33,409 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ec3991c-902f-4ad8-a46c-e83fa378cad6/bin/uautomizer-vX5HgA9Q3a/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-11-21 13:54:33,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 13:54:33,512 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-21 13:54:33,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 13:54:33,623 INFO L130 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2022-11-21 13:54:33,623 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-21 13:54:33,624 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK (17 of 18 remaining) [2022-11-21 13:54:33,626 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (16 of 18 remaining) [2022-11-21 13:54:33,627 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (15 of 18 remaining) [2022-11-21 13:54:33,627 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (14 of 18 remaining) [2022-11-21 13:54:33,627 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (13 of 18 remaining) [2022-11-21 13:54:33,628 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (12 of 18 remaining) [2022-11-21 13:54:33,628 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (11 of 18 remaining) [2022-11-21 13:54:33,628 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (10 of 18 remaining) [2022-11-21 13:54:33,628 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (9 of 18 remaining) [2022-11-21 13:54:33,628 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 18 remaining) [2022-11-21 13:54:33,629 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (7 of 18 remaining) [2022-11-21 13:54:33,629 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 18 remaining) [2022-11-21 13:54:33,629 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 18 remaining) [2022-11-21 13:54:33,629 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 18 remaining) [2022-11-21 13:54:33,630 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 18 remaining) [2022-11-21 13:54:33,630 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 18 remaining) [2022-11-21 13:54:33,630 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (1 of 18 remaining) [2022-11-21 13:54:33,630 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (0 of 18 remaining) [2022-11-21 13:54:33,659 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ec3991c-902f-4ad8-a46c-e83fa378cad6/bin/uautomizer-vX5HgA9Q3a/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2022-11-21 13:54:33,831 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ec3991c-902f-4ad8-a46c-e83fa378cad6/bin/uautomizer-vX5HgA9Q3a/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-21 13:54:33,834 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2022-11-21 13:54:33,853 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-21 13:54:33,853 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-21 13:54:33,912 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.11 01:54:33 BasicIcfg [2022-11-21 13:54:33,912 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-21 13:54:33,915 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-21 13:54:33,915 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-21 13:54:33,916 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-21 13:54:33,917 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 01:54:18" (3/4) ... [2022-11-21 13:54:33,919 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-21 13:54:33,920 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-21 13:54:33,920 INFO L158 Benchmark]: Toolchain (without parser) took 16988.22ms. Allocated memory was 71.3MB in the beginning and 119.5MB in the end (delta: 48.2MB). Free memory was 37.5MB in the beginning and 91.4MB in the end (delta: -53.8MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-21 13:54:33,921 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 71.3MB. Free memory is still 48.7MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-21 13:54:33,935 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1200.98ms. Allocated memory was 71.3MB in the beginning and 98.6MB in the end (delta: 27.3MB). Free memory was 37.3MB in the beginning and 53.1MB in the end (delta: -15.8MB). Peak memory consumption was 12.0MB. Max. memory is 16.1GB. [2022-11-21 13:54:33,936 INFO L158 Benchmark]: Boogie Procedure Inliner took 88.87ms. Allocated memory is still 98.6MB. Free memory was 53.1MB in the beginning and 50.6MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-21 13:54:33,936 INFO L158 Benchmark]: Boogie Preprocessor took 79.67ms. Allocated memory is still 98.6MB. Free memory was 50.6MB in the beginning and 76.3MB in the end (delta: -25.7MB). Peak memory consumption was 3.9MB. Max. memory is 16.1GB. [2022-11-21 13:54:33,938 INFO L158 Benchmark]: RCFGBuilder took 656.48ms. Allocated memory is still 98.6MB. Free memory was 76.3MB in the beginning and 58.8MB in the end (delta: 17.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-11-21 13:54:33,940 INFO L158 Benchmark]: TraceAbstraction took 14947.62ms. Allocated memory was 98.6MB in the beginning and 119.5MB in the end (delta: 21.0MB). Free memory was 58.1MB in the beginning and 92.4MB in the end (delta: -34.3MB). Peak memory consumption was 6.2MB. Max. memory is 16.1GB. [2022-11-21 13:54:33,941 INFO L158 Benchmark]: Witness Printer took 4.92ms. Allocated memory is still 119.5MB. Free memory was 92.4MB in the beginning and 91.4MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-21 13:54:33,951 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27ms. Allocated memory is still 71.3MB. Free memory is still 48.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1200.98ms. Allocated memory was 71.3MB in the beginning and 98.6MB in the end (delta: 27.3MB). Free memory was 37.3MB in the beginning and 53.1MB in the end (delta: -15.8MB). Peak memory consumption was 12.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 88.87ms. Allocated memory is still 98.6MB. Free memory was 53.1MB in the beginning and 50.6MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 79.67ms. Allocated memory is still 98.6MB. Free memory was 50.6MB in the beginning and 76.3MB in the end (delta: -25.7MB). Peak memory consumption was 3.9MB. Max. memory is 16.1GB. * RCFGBuilder took 656.48ms. Allocated memory is still 98.6MB. Free memory was 76.3MB in the beginning and 58.8MB in the end (delta: 17.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 14947.62ms. Allocated memory was 98.6MB in the beginning and 119.5MB in the end (delta: 21.0MB). Free memory was 58.1MB in the beginning and 92.4MB in the end (delta: -34.3MB). Peak memory consumption was 6.2MB. Max. memory is 16.1GB. * Witness Printer took 4.92ms. Allocated memory is still 119.5MB. Free memory was 92.4MB in the beginning and 91.4MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 11.9s, 86 PlacesBefore, 29 PlacesAfterwards, 82 TransitionsBefore, 25 TransitionsAfterwards, 1218 CoEnabledTransitionPairs, 7 FixpointIterations, 41 TrivialSequentialCompositions, 55 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 96 TotalNumberOfCompositions, 2515 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1582, independent: 1440, independent conditional: 0, independent unconditional: 1440, dependent: 142, dependent conditional: 0, dependent unconditional: 142, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 855, independent: 824, independent conditional: 0, independent unconditional: 824, dependent: 31, dependent conditional: 0, dependent unconditional: 31, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 855, independent: 815, independent conditional: 0, independent unconditional: 815, dependent: 40, dependent conditional: 0, dependent unconditional: 40, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 40, independent: 9, independent conditional: 0, independent unconditional: 9, dependent: 31, dependent conditional: 0, dependent unconditional: 31, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 489, independent: 62, independent conditional: 0, independent unconditional: 62, dependent: 428, dependent conditional: 0, dependent unconditional: 428, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 1582, independent: 616, independent conditional: 0, independent unconditional: 616, dependent: 111, dependent conditional: 0, dependent unconditional: 111, unknown: 855, unknown conditional: 0, unknown unconditional: 855] , Statistics on independence cache: Total cache size (in pairs): 75, Positive cache size: 60, Positive conditional cache size: 0, Positive unconditional cache size: 60, Negative cache size: 15, Negative conditional cache size: 0, Negative unconditional cache size: 15, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 1242]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 1242. Possible FailurePath: [L1223-L1227] 0 struct s { int datum; pthread_mutex_t mutex; int list; } *A; [L1243] 0 pthread_t t1; [L1244] 0 A = malloc(sizeof(struct s)) [L1245] CALL 0 init(A,666) [L1229] 0 p->datum = x [L1245] RET 0 init(A,666) [L1246] FCALL, FORK 0 pthread_create(&t1, ((void *)0), t_fun, ((void *)0)) VAL [A={1:0}, pthread_create(&t1, ((void *)0), t_fun, ((void *)0))=0, t1={4:0}] [L1247] CALL 0 update(&A->list) [L1233] 0 struct s *s = ((struct s *)((char *)(p)-(unsigned long)(&((struct s *)0)->list))); [L1235] EXPR 0 s->datum VAL [A={1:0}, p={1:28}, p={1:28}, s={1:0}, s->datum=666] [L1235] 0 s->datum++ [L1247] RET 0 update(&A->list) [L1248] 0 return 0; [L1248] 0 return 0; - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1246]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 106 locations, 18 error locations. Started 1 CEGAR loops. OverallTime: 14.7s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 12.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 40 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 40 mSDsluCounter, 4 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 5 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 94 IncrementalHoareTripleChecker+Invalid, 99 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 5 mSolverCounterUnsat, 4 mSDtfsCounter, 94 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=103occurred in iteration=0, InterpolantAutomatonStates: 13, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 18 NumberOfCodeBlocks, 18 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 7 ConstructedInterpolants, 0 QuantifiedInterpolants, 53 SizeOfPredicates, 6 NumberOfNonLiveVariables, 194 ConjunctsInSsa, 23 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-11-21 13:54:33,975 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ec3991c-902f-4ad8-a46c-e83fa378cad6/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample