./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/goblint-regression/06-symbeq_11-equ_nr.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 8393723b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89b2a723-0eaf-4f7a-8b61-885ea58424be/bin/uautomizer-TMbwUNV5ro/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89b2a723-0eaf-4f7a-8b61-885ea58424be/bin/uautomizer-TMbwUNV5ro/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89b2a723-0eaf-4f7a-8b61-885ea58424be/bin/uautomizer-TMbwUNV5ro/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89b2a723-0eaf-4f7a-8b61-885ea58424be/bin/uautomizer-TMbwUNV5ro/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/goblint-regression/06-symbeq_11-equ_nr.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89b2a723-0eaf-4f7a-8b61-885ea58424be/bin/uautomizer-TMbwUNV5ro/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89b2a723-0eaf-4f7a-8b61-885ea58424be/bin/uautomizer-TMbwUNV5ro --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 071be118cd0932d66afa6bce30fcab76880adc6e53d2ca540223cce2e13054f4 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-8393723 [2022-11-18 21:01:30,965 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-18 21:01:30,968 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-18 21:01:31,005 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-18 21:01:31,007 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-18 21:01:31,012 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-18 21:01:31,015 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-18 21:01:31,020 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-18 21:01:31,023 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-18 21:01:31,030 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-18 21:01:31,032 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-18 21:01:31,035 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-18 21:01:31,035 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-18 21:01:31,038 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-18 21:01:31,040 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-18 21:01:31,043 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-18 21:01:31,045 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-18 21:01:31,047 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-18 21:01:31,049 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-18 21:01:31,060 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-18 21:01:31,062 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-18 21:01:31,063 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-18 21:01:31,067 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-18 21:01:31,068 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-18 21:01:31,078 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-18 21:01:31,079 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-18 21:01:31,079 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-18 21:01:31,082 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-18 21:01:31,082 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-18 21:01:31,084 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-18 21:01:31,084 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-18 21:01:31,085 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-18 21:01:31,088 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-18 21:01:31,089 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-18 21:01:31,092 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-18 21:01:31,092 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-18 21:01:31,093 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-18 21:01:31,094 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-18 21:01:31,094 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-18 21:01:31,095 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-18 21:01:31,096 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-18 21:01:31,097 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89b2a723-0eaf-4f7a-8b61-885ea58424be/bin/uautomizer-TMbwUNV5ro/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2022-11-18 21:01:31,130 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-18 21:01:31,130 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-18 21:01:31,131 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-18 21:01:31,131 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-18 21:01:31,132 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-18 21:01:31,132 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-18 21:01:31,133 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-18 21:01:31,133 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-18 21:01:31,134 INFO L138 SettingsManager]: * Use SBE=true [2022-11-18 21:01:31,134 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-18 21:01:31,134 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-18 21:01:31,135 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-18 21:01:31,135 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-18 21:01:31,135 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-18 21:01:31,135 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-18 21:01:31,136 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-11-18 21:01:31,136 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-11-18 21:01:31,136 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-11-18 21:01:31,136 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-18 21:01:31,137 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-18 21:01:31,137 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-18 21:01:31,137 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-18 21:01:31,138 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-18 21:01:31,138 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-18 21:01:31,138 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-18 21:01:31,139 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 21:01:31,139 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-18 21:01:31,139 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-18 21:01:31,139 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-18 21:01:31,140 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-18 21:01:31,140 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_89b2a723-0eaf-4f7a-8b61-885ea58424be/bin/uautomizer-TMbwUNV5ro/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89b2a723-0eaf-4f7a-8b61-885ea58424be/bin/uautomizer-TMbwUNV5ro Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 071be118cd0932d66afa6bce30fcab76880adc6e53d2ca540223cce2e13054f4 [2022-11-18 21:01:31,506 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-18 21:01:31,531 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-18 21:01:31,534 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-18 21:01:31,536 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-18 21:01:31,537 INFO L275 PluginConnector]: CDTParser initialized [2022-11-18 21:01:31,538 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89b2a723-0eaf-4f7a-8b61-885ea58424be/bin/uautomizer-TMbwUNV5ro/../../sv-benchmarks/c/goblint-regression/06-symbeq_11-equ_nr.i [2022-11-18 21:01:31,641 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89b2a723-0eaf-4f7a-8b61-885ea58424be/bin/uautomizer-TMbwUNV5ro/data/7b151b955/fb24eb66e15a4fe79f65e2d17dc6971e/FLAG4d57ba210 [2022-11-18 21:01:32,299 INFO L306 CDTParser]: Found 1 translation units. [2022-11-18 21:01:32,300 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89b2a723-0eaf-4f7a-8b61-885ea58424be/sv-benchmarks/c/goblint-regression/06-symbeq_11-equ_nr.i [2022-11-18 21:01:32,318 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89b2a723-0eaf-4f7a-8b61-885ea58424be/bin/uautomizer-TMbwUNV5ro/data/7b151b955/fb24eb66e15a4fe79f65e2d17dc6971e/FLAG4d57ba210 [2022-11-18 21:01:32,579 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89b2a723-0eaf-4f7a-8b61-885ea58424be/bin/uautomizer-TMbwUNV5ro/data/7b151b955/fb24eb66e15a4fe79f65e2d17dc6971e [2022-11-18 21:01:32,582 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-18 21:01:32,584 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-18 21:01:32,587 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-18 21:01:32,587 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-18 21:01:32,591 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-18 21:01:32,595 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 09:01:32" (1/1) ... [2022-11-18 21:01:32,596 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@786301ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:01:32, skipping insertion in model container [2022-11-18 21:01:32,599 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 09:01:32" (1/1) ... [2022-11-18 21:01:32,607 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-18 21:01:32,671 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-18 21:01:33,316 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 21:01:33,336 INFO L203 MainTranslator]: Completed pre-run [2022-11-18 21:01:33,405 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 21:01:33,455 INFO L208 MainTranslator]: Completed translation [2022-11-18 21:01:33,456 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:01:33 WrapperNode [2022-11-18 21:01:33,456 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-18 21:01:33,457 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-18 21:01:33,458 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-18 21:01:33,458 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-18 21:01:33,468 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:01:33" (1/1) ... [2022-11-18 21:01:33,498 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:01:33" (1/1) ... [2022-11-18 21:01:33,544 INFO L138 Inliner]: procedures = 265, calls = 29, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 64 [2022-11-18 21:01:33,545 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-18 21:01:33,546 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-18 21:01:33,546 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-18 21:01:33,546 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-18 21:01:33,556 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:01:33" (1/1) ... [2022-11-18 21:01:33,557 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:01:33" (1/1) ... [2022-11-18 21:01:33,566 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:01:33" (1/1) ... [2022-11-18 21:01:33,567 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:01:33" (1/1) ... [2022-11-18 21:01:33,572 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:01:33" (1/1) ... [2022-11-18 21:01:33,575 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:01:33" (1/1) ... [2022-11-18 21:01:33,588 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:01:33" (1/1) ... [2022-11-18 21:01:33,590 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:01:33" (1/1) ... [2022-11-18 21:01:33,592 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-18 21:01:33,593 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-18 21:01:33,593 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-18 21:01:33,594 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-18 21:01:33,595 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:01:33" (1/1) ... [2022-11-18 21:01:33,611 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 21:01:33,624 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89b2a723-0eaf-4f7a-8b61-885ea58424be/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 21:01:33,636 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89b2a723-0eaf-4f7a-8b61-885ea58424be/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-18 21:01:33,657 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89b2a723-0eaf-4f7a-8b61-885ea58424be/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-18 21:01:33,687 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-18 21:01:33,688 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-18 21:01:33,689 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-18 21:01:33,689 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-18 21:01:33,689 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-18 21:01:33,689 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-11-18 21:01:33,690 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-11-18 21:01:33,690 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-18 21:01:33,690 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-18 21:01:33,690 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-18 21:01:33,692 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-18 21:01:33,916 INFO L235 CfgBuilder]: Building ICFG [2022-11-18 21:01:33,918 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-18 21:01:34,144 INFO L276 CfgBuilder]: Performing block encoding [2022-11-18 21:01:34,153 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-18 21:01:34,153 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-18 21:01:34,156 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 09:01:34 BoogieIcfgContainer [2022-11-18 21:01:34,156 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-18 21:01:34,158 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-18 21:01:34,158 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-18 21:01:34,162 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-18 21:01:34,163 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 09:01:32" (1/3) ... [2022-11-18 21:01:34,164 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2862eb47 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 09:01:34, skipping insertion in model container [2022-11-18 21:01:34,164 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:01:33" (2/3) ... [2022-11-18 21:01:34,164 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2862eb47 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 09:01:34, skipping insertion in model container [2022-11-18 21:01:34,165 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 09:01:34" (3/3) ... [2022-11-18 21:01:34,166 INFO L112 eAbstractionObserver]: Analyzing ICFG 06-symbeq_11-equ_nr.i [2022-11-18 21:01:34,189 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-18 21:01:34,189 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 7 error locations. [2022-11-18 21:01:34,190 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-18 21:01:34,241 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-18 21:01:34,279 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-18 21:01:34,295 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 88 places, 86 transitions, 177 flow [2022-11-18 21:01:34,299 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 88 places, 86 transitions, 177 flow [2022-11-18 21:01:34,301 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 88 places, 86 transitions, 177 flow [2022-11-18 21:01:34,348 INFO L130 PetriNetUnfolder]: 1/91 cut-off events. [2022-11-18 21:01:34,349 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-18 21:01:34,353 INFO L83 FinitePrefix]: Finished finitePrefix Result has 95 conditions, 91 events. 1/91 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 69 event pairs, 0 based on Foata normal form. 0/81 useless extension candidates. Maximal degree in co-relation 64. Up to 2 conditions per place. [2022-11-18 21:01:34,354 INFO L119 LiptonReduction]: Number of co-enabled transitions 306 [2022-11-18 21:01:47,282 INFO L134 LiptonReduction]: Checked pairs total: 1004 [2022-11-18 21:01:47,282 INFO L136 LiptonReduction]: Total number of compositions: 89 [2022-11-18 21:01:47,299 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 22 places, 19 transitions, 43 flow [2022-11-18 21:01:47,324 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 58 states, 44 states have (on average 2.159090909090909) internal successors, (95), 57 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) [2022-11-18 21:01:47,351 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-18 21:01:47,362 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;@16fb4cc6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 21:01:47,363 INFO L358 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2022-11-18 21:01:47,366 INFO L276 IsEmpty]: Start isEmpty. Operand has 58 states, 44 states have (on average 2.159090909090909) internal successors, (95), 57 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) [2022-11-18 21:01:47,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2 [2022-11-18 21:01:47,372 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 21:01:47,373 INFO L195 NwaCegarLoop]: trace histogram [1] [2022-11-18 21:01:47,373 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 7 more)] === [2022-11-18 21:01:47,382 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:01:47,383 INFO L85 PathProgramCache]: Analyzing trace with hash 308, now seen corresponding path program 1 times [2022-11-18 21:01:47,394 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 21:01:47,395 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1095833644] [2022-11-18 21:01:47,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:01:47,396 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 21:01:47,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:01:47,545 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 21:01:47,547 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 21:01:47,547 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1095833644] [2022-11-18 21:01:47,548 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1095833644] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 21:01:47,548 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 21:01:47,549 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-11-18 21:01:47,550 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1383224319] [2022-11-18 21:01:47,551 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 21:01:47,556 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-18 21:01:47,557 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 21:01:47,587 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-18 21:01:47,588 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-18 21:01:47,591 INFO L87 Difference]: Start difference. First operand has 58 states, 44 states have (on average 2.159090909090909) internal successors, (95), 57 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) Second operand has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:01:47,657 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 21:01:47,657 INFO L93 Difference]: Finished difference Result 56 states and 93 transitions. [2022-11-18 21:01:47,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 21:01:47,661 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 1 [2022-11-18 21:01:47,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 21:01:47,672 INFO L225 Difference]: With dead ends: 56 [2022-11-18 21:01:47,673 INFO L226 Difference]: Without dead ends: 56 [2022-11-18 21:01:47,674 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-18 21:01:47,679 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 3 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 21:01:47,681 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 3 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 21:01:47,702 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2022-11-18 21:01:47,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 56. [2022-11-18 21:01:47,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56 states, 44 states have (on average 2.1136363636363638) internal successors, (93), 55 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:01:47,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 93 transitions. [2022-11-18 21:01:47,730 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 93 transitions. Word has length 1 [2022-11-18 21:01:47,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 21:01:47,731 INFO L495 AbstractCegarLoop]: Abstraction has 56 states and 93 transitions. [2022-11-18 21:01:47,736 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:01:47,738 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 93 transitions. [2022-11-18 21:01:47,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2022-11-18 21:01:47,738 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 21:01:47,738 INFO L195 NwaCegarLoop]: trace histogram [1, 1] [2022-11-18 21:01:47,739 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-18 21:01:47,739 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 7 more)] === [2022-11-18 21:01:47,740 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:01:47,740 INFO L85 PathProgramCache]: Analyzing trace with hash 9500, now seen corresponding path program 1 times [2022-11-18 21:01:47,740 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 21:01:47,741 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1171310406] [2022-11-18 21:01:47,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:01:47,741 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 21:01:47,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:01:47,886 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 21:01:47,886 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 21:01:47,886 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1171310406] [2022-11-18 21:01:47,887 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1171310406] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 21:01:47,887 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 21:01:47,887 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-18 21:01:47,887 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1403793456] [2022-11-18 21:01:47,887 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 21:01:47,889 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 21:01:47,890 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 21:01:47,890 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 21:01:47,890 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 21:01:47,891 INFO L87 Difference]: Start difference. First operand 56 states and 93 transitions. Second operand has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:01:47,956 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 21:01:47,957 INFO L93 Difference]: Finished difference Result 55 states and 92 transitions. [2022-11-18 21:01:47,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 21:01:47,958 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 2 [2022-11-18 21:01:47,959 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 21:01:47,963 INFO L225 Difference]: With dead ends: 55 [2022-11-18 21:01:47,967 INFO L226 Difference]: Without dead ends: 54 [2022-11-18 21:01:47,968 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 21:01:47,970 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 3 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 21:01:47,971 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 4 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 21:01:47,975 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2022-11-18 21:01:47,989 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 54. [2022-11-18 21:01:47,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 43 states have (on average 2.116279069767442) internal successors, (91), 53 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:01:47,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 91 transitions. [2022-11-18 21:01:47,995 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 91 transitions. Word has length 2 [2022-11-18 21:01:47,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 21:01:47,996 INFO L495 AbstractCegarLoop]: Abstraction has 54 states and 91 transitions. [2022-11-18 21:01:47,997 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:01:47,997 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 91 transitions. [2022-11-18 21:01:47,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-11-18 21:01:47,998 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 21:01:47,999 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2022-11-18 21:01:47,999 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-18 21:01:48,000 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 7 more)] === [2022-11-18 21:01:48,000 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:01:48,000 INFO L85 PathProgramCache]: Analyzing trace with hash 301126, now seen corresponding path program 1 times [2022-11-18 21:01:48,001 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 21:01:48,004 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1084103453] [2022-11-18 21:01:48,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:01:48,010 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 21:01:48,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:01:48,489 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 21:01:48,489 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 21:01:48,489 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1084103453] [2022-11-18 21:01:48,489 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1084103453] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 21:01:48,490 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 21:01:48,490 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-18 21:01:48,490 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1359166034] [2022-11-18 21:01:48,490 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 21:01:48,491 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 21:01:48,491 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 21:01:48,492 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 21:01:48,492 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 21:01:48,492 INFO L87 Difference]: Start difference. First operand 54 states and 91 transitions. Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:01:48,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 21:01:48,525 INFO L93 Difference]: Finished difference Result 45 states and 74 transitions. [2022-11-18 21:01:48,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 21:01:48,525 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2022-11-18 21:01:48,526 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 21:01:48,526 INFO L225 Difference]: With dead ends: 45 [2022-11-18 21:01:48,526 INFO L226 Difference]: Without dead ends: 45 [2022-11-18 21:01:48,527 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 21:01:48,528 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 12 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 2 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 21:01:48,529 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 2 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 21:01:48,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2022-11-18 21:01:48,533 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2022-11-18 21:01:48,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45 states, 38 states have (on average 1.9473684210526316) internal successors, (74), 44 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:01:48,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 74 transitions. [2022-11-18 21:01:48,535 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 74 transitions. Word has length 3 [2022-11-18 21:01:48,536 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 21:01:48,536 INFO L495 AbstractCegarLoop]: Abstraction has 45 states and 74 transitions. [2022-11-18 21:01:48,536 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:01:48,536 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 74 transitions. [2022-11-18 21:01:48,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-11-18 21:01:48,537 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 21:01:48,537 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2022-11-18 21:01:48,537 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-18 21:01:48,538 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 7 more)] === [2022-11-18 21:01:48,538 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:01:48,538 INFO L85 PathProgramCache]: Analyzing trace with hash 301136, now seen corresponding path program 1 times [2022-11-18 21:01:48,539 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 21:01:48,539 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1731691402] [2022-11-18 21:01:48,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:01:48,539 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 21:01:48,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:01:48,775 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 21:01:48,775 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 21:01:48,776 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1731691402] [2022-11-18 21:01:48,778 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1731691402] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 21:01:48,779 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 21:01:48,779 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-18 21:01:48,779 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1576458513] [2022-11-18 21:01:48,779 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 21:01:48,783 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 21:01:48,784 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 21:01:48,786 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 21:01:48,786 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 21:01:48,786 INFO L87 Difference]: Start difference. First operand 45 states and 74 transitions. Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:01:48,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 21:01:48,819 INFO L93 Difference]: Finished difference Result 40 states and 65 transitions. [2022-11-18 21:01:48,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 21:01:48,820 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2022-11-18 21:01:48,820 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 21:01:48,821 INFO L225 Difference]: With dead ends: 40 [2022-11-18 21:01:48,822 INFO L226 Difference]: Without dead ends: 40 [2022-11-18 21:01:48,822 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 21:01:48,823 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 8 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 2 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 21:01:48,824 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 2 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 21:01:48,825 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2022-11-18 21:01:48,828 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 40. [2022-11-18 21:01:48,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40 states, 35 states have (on average 1.8571428571428572) internal successors, (65), 39 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:01:48,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 65 transitions. [2022-11-18 21:01:48,829 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 65 transitions. Word has length 3 [2022-11-18 21:01:48,830 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 21:01:48,830 INFO L495 AbstractCegarLoop]: Abstraction has 40 states and 65 transitions. [2022-11-18 21:01:48,830 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:01:48,831 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 65 transitions. [2022-11-18 21:01:48,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-11-18 21:01:48,831 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 21:01:48,831 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2022-11-18 21:01:48,832 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-18 21:01:48,832 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 7 more)] === [2022-11-18 21:01:48,832 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:01:48,833 INFO L85 PathProgramCache]: Analyzing trace with hash 301137, now seen corresponding path program 1 times [2022-11-18 21:01:48,833 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 21:01:48,833 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1804328967] [2022-11-18 21:01:48,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:01:48,834 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 21:01:48,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:01:49,105 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 21:01:49,106 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 21:01:49,106 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1804328967] [2022-11-18 21:01:49,106 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1804328967] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 21:01:49,106 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 21:01:49,106 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-18 21:01:49,107 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2021837983] [2022-11-18 21:01:49,107 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 21:01:49,107 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 21:01:49,107 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 21:01:49,108 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 21:01:49,108 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 21:01:49,108 INFO L87 Difference]: Start difference. First operand 40 states and 65 transitions. Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:01:49,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 21:01:49,141 INFO L93 Difference]: Finished difference Result 35 states and 56 transitions. [2022-11-18 21:01:49,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 21:01:49,146 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2022-11-18 21:01:49,146 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 21:01:49,146 INFO L225 Difference]: With dead ends: 35 [2022-11-18 21:01:49,146 INFO L226 Difference]: Without dead ends: 35 [2022-11-18 21:01:49,147 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 21:01:49,149 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 10 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 2 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 21:01:49,149 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 2 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 21:01:49,150 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2022-11-18 21:01:49,152 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2022-11-18 21:01:49,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 32 states have (on average 1.75) internal successors, (56), 34 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:01:49,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 56 transitions. [2022-11-18 21:01:49,153 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 56 transitions. Word has length 3 [2022-11-18 21:01:49,153 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 21:01:49,153 INFO L495 AbstractCegarLoop]: Abstraction has 35 states and 56 transitions. [2022-11-18 21:01:49,154 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:01:49,154 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 56 transitions. [2022-11-18 21:01:49,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-11-18 21:01:49,154 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 21:01:49,154 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-11-18 21:01:49,155 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-18 21:01:49,155 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 7 more)] === [2022-11-18 21:01:49,155 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:01:49,155 INFO L85 PathProgramCache]: Analyzing trace with hash 9334430, now seen corresponding path program 1 times [2022-11-18 21:01:49,156 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 21:01:49,156 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1685456580] [2022-11-18 21:01:49,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:01:49,156 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 21:01:49,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:01:49,385 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 21:01:49,385 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 21:01:49,385 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1685456580] [2022-11-18 21:01:49,385 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1685456580] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 21:01:49,385 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 21:01:49,385 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-18 21:01:49,386 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1944944877] [2022-11-18 21:01:49,386 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 21:01:49,386 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 21:01:49,386 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 21:01:49,387 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 21:01:49,387 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 21:01:49,387 INFO L87 Difference]: Start difference. First operand 35 states and 56 transitions. Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 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) [2022-11-18 21:01:49,425 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 21:01:49,425 INFO L93 Difference]: Finished difference Result 35 states and 52 transitions. [2022-11-18 21:01:49,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 21:01:49,426 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 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 [2022-11-18 21:01:49,426 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 21:01:49,430 INFO L225 Difference]: With dead ends: 35 [2022-11-18 21:01:49,430 INFO L226 Difference]: Without dead ends: 35 [2022-11-18 21:01:49,431 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 21:01:49,433 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 6 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 2 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 21:01:49,434 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 2 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 21:01:49,435 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2022-11-18 21:01:49,441 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 31. [2022-11-18 21:01:49,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 28 states have (on average 1.7142857142857142) internal successors, (48), 30 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:01:49,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 48 transitions. [2022-11-18 21:01:49,442 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 48 transitions. Word has length 4 [2022-11-18 21:01:49,442 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 21:01:49,442 INFO L495 AbstractCegarLoop]: Abstraction has 31 states and 48 transitions. [2022-11-18 21:01:49,443 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 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) [2022-11-18 21:01:49,443 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 48 transitions. [2022-11-18 21:01:49,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-18 21:01:49,443 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 21:01:49,443 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-18 21:01:49,444 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-18 21:01:49,444 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 7 more)] === [2022-11-18 21:01:49,444 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:01:49,444 INFO L85 PathProgramCache]: Analyzing trace with hash -1060472798, now seen corresponding path program 1 times [2022-11-18 21:01:49,445 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 21:01:49,445 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1921818839] [2022-11-18 21:01:49,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:01:49,445 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 21:01:49,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:01:49,613 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 21:01:49,614 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 21:01:49,614 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1921818839] [2022-11-18 21:01:49,614 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1921818839] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 21:01:49,614 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 21:01:49,614 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 21:01:49,614 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1581788879] [2022-11-18 21:01:49,615 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 21:01:49,615 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-18 21:01:49,615 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 21:01:49,615 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 21:01:49,616 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-18 21:01:49,616 INFO L87 Difference]: Start difference. First operand 31 states and 48 transitions. Second operand has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:01:49,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 21:01:49,651 INFO L93 Difference]: Finished difference Result 26 states and 39 transitions. [2022-11-18 21:01:49,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-18 21:01:49,652 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2022-11-18 21:01:49,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 21:01:49,653 INFO L225 Difference]: With dead ends: 26 [2022-11-18 21:01:49,653 INFO L226 Difference]: Without dead ends: 16 [2022-11-18 21:01:49,653 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-18 21:01:49,654 INFO L413 NwaCegarLoop]: 1 mSDtfsCounter, 8 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 2 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 21:01:49,654 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 2 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 21:01:49,655 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2022-11-18 21:01:49,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2022-11-18 21:01:49,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 15 states have (on average 1.4) internal successors, (21), 15 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:01:49,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 21 transitions. [2022-11-18 21:01:49,657 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 21 transitions. Word has length 7 [2022-11-18 21:01:49,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 21:01:49,658 INFO L495 AbstractCegarLoop]: Abstraction has 16 states and 21 transitions. [2022-11-18 21:01:49,658 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:01:49,658 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 21 transitions. [2022-11-18 21:01:49,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-18 21:01:49,658 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 21:01:49,659 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 21:01:49,659 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-18 21:01:49,659 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting t_funErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 7 more)] === [2022-11-18 21:01:49,660 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:01:49,660 INFO L85 PathProgramCache]: Analyzing trace with hash 590381536, now seen corresponding path program 1 times [2022-11-18 21:01:49,660 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 21:01:49,660 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [651947746] [2022-11-18 21:01:49,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:01:49,660 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 21:01:49,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:01:49,943 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 21:01:49,943 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 21:01:49,943 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [651947746] [2022-11-18 21:01:49,943 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [651947746] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 21:01:49,944 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 21:01:49,944 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 21:01:49,944 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1395802765] [2022-11-18 21:01:49,944 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 21:01:49,944 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-18 21:01:49,945 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 21:01:49,945 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-18 21:01:49,945 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-18 21:01:49,945 INFO L87 Difference]: Start difference. First operand 16 states and 21 transitions. Second operand has 5 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:01:50,013 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 21:01:50,014 INFO L93 Difference]: Finished difference Result 14 states and 18 transitions. [2022-11-18 21:01:50,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-18 21:01:50,015 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2022-11-18 21:01:50,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 21:01:50,015 INFO L225 Difference]: With dead ends: 14 [2022-11-18 21:01:50,015 INFO L226 Difference]: Without dead ends: 0 [2022-11-18 21:01:50,015 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-11-18 21:01:50,016 INFO L413 NwaCegarLoop]: 1 mSDtfsCounter, 12 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 1 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 21:01:50,017 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 1 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 21:01:50,017 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-18 21:01:50,018 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-18 21:01:50,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:01:50,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-18 21:01:50,018 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 8 [2022-11-18 21:01:50,018 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 21:01:50,018 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-18 21:01:50,019 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:01:50,019 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-18 21:01:50,019 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-18 21:01:50,022 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK (9 of 10 remaining) [2022-11-18 21:01:50,023 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (8 of 10 remaining) [2022-11-18 21:01:50,023 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (7 of 10 remaining) [2022-11-18 21:01:50,023 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 10 remaining) [2022-11-18 21:01:50,023 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 10 remaining) [2022-11-18 21:01:50,024 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 10 remaining) [2022-11-18 21:01:50,024 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 10 remaining) [2022-11-18 21:01:50,024 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 10 remaining) [2022-11-18 21:01:50,024 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (1 of 10 remaining) [2022-11-18 21:01:50,024 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (0 of 10 remaining) [2022-11-18 21:01:50,025 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-18 21:01:50,028 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 21:01:50,035 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-18 21:01:50,035 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-18 21:01:50,039 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 09:01:50 BasicIcfg [2022-11-18 21:01:50,039 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-18 21:01:50,041 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-18 21:01:50,041 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-18 21:01:50,041 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-18 21:01:50,042 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 09:01:34" (3/4) ... [2022-11-18 21:01:50,045 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-18 21:01:50,053 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2022-11-18 21:01:50,059 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2022-11-18 21:01:50,060 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2022-11-18 21:01:50,060 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2022-11-18 21:01:50,109 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89b2a723-0eaf-4f7a-8b61-885ea58424be/bin/uautomizer-TMbwUNV5ro/witness.graphml [2022-11-18 21:01:50,113 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-18 21:01:50,114 INFO L158 Benchmark]: Toolchain (without parser) took 17530.06ms. Allocated memory was 121.6MB in the beginning and 186.6MB in the end (delta: 65.0MB). Free memory was 86.0MB in the beginning and 57.8MB in the end (delta: 28.2MB). Peak memory consumption was 93.6MB. Max. memory is 16.1GB. [2022-11-18 21:01:50,114 INFO L158 Benchmark]: CDTParser took 0.33ms. Allocated memory is still 83.9MB. Free memory was 41.0MB in the beginning and 41.0MB in the end (delta: 36.6kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-18 21:01:50,115 INFO L158 Benchmark]: CACSL2BoogieTranslator took 870.10ms. Allocated memory is still 121.6MB. Free memory was 85.8MB in the beginning and 80.0MB in the end (delta: 5.8MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-18 21:01:50,115 INFO L158 Benchmark]: Boogie Procedure Inliner took 87.91ms. Allocated memory is still 121.6MB. Free memory was 80.0MB in the beginning and 77.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-18 21:01:50,116 INFO L158 Benchmark]: Boogie Preprocessor took 46.49ms. Allocated memory is still 121.6MB. Free memory was 77.9MB in the beginning and 76.4MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-18 21:01:50,116 INFO L158 Benchmark]: RCFGBuilder took 562.89ms. Allocated memory is still 121.6MB. Free memory was 76.4MB in the beginning and 62.4MB in the end (delta: 14.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-18 21:01:50,117 INFO L158 Benchmark]: TraceAbstraction took 15881.01ms. Allocated memory was 121.6MB in the beginning and 186.6MB in the end (delta: 65.0MB). Free memory was 61.8MB in the beginning and 60.9MB in the end (delta: 826.1kB). Peak memory consumption was 66.5MB. Max. memory is 16.1GB. [2022-11-18 21:01:50,118 INFO L158 Benchmark]: Witness Printer took 72.68ms. Allocated memory is still 186.6MB. Free memory was 60.9MB in the beginning and 57.8MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-18 21:01:50,120 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33ms. Allocated memory is still 83.9MB. Free memory was 41.0MB in the beginning and 41.0MB in the end (delta: 36.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 870.10ms. Allocated memory is still 121.6MB. Free memory was 85.8MB in the beginning and 80.0MB in the end (delta: 5.8MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 87.91ms. Allocated memory is still 121.6MB. Free memory was 80.0MB in the beginning and 77.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 46.49ms. Allocated memory is still 121.6MB. Free memory was 77.9MB in the beginning and 76.4MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 562.89ms. Allocated memory is still 121.6MB. Free memory was 76.4MB in the beginning and 62.4MB in the end (delta: 14.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 15881.01ms. Allocated memory was 121.6MB in the beginning and 186.6MB in the end (delta: 65.0MB). Free memory was 61.8MB in the beginning and 60.9MB in the end (delta: 826.1kB). Peak memory consumption was 66.5MB. Max. memory is 16.1GB. * Witness Printer took 72.68ms. Allocated memory is still 186.6MB. Free memory was 60.9MB in the beginning and 57.8MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 13.0s, 88 PlacesBefore, 22 PlacesAfterwards, 86 TransitionsBefore, 19 TransitionsAfterwards, 306 CoEnabledTransitionPairs, 9 FixpointIterations, 65 TrivialSequentialCompositions, 20 ConcurrentSequentialCompositions, 3 TrivialYvCompositions, 0 ConcurrentYvCompositions, 1 ChoiceCompositions, 89 TotalNumberOfCompositions, 1004 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 628, independent: 513, independent conditional: 0, independent unconditional: 513, dependent: 115, dependent conditional: 0, dependent unconditional: 115, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 218, independent: 199, independent conditional: 0, independent unconditional: 199, dependent: 19, dependent conditional: 0, dependent unconditional: 19, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 218, independent: 193, independent conditional: 0, independent unconditional: 193, dependent: 25, dependent conditional: 0, dependent unconditional: 25, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 25, independent: 6, independent conditional: 0, independent unconditional: 6, dependent: 19, dependent conditional: 0, dependent unconditional: 19, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 144, independent: 28, independent conditional: 0, independent unconditional: 28, dependent: 116, dependent conditional: 0, dependent unconditional: 116, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 628, independent: 314, independent conditional: 0, independent unconditional: 314, dependent: 96, dependent conditional: 0, dependent unconditional: 96, unknown: 218, unknown conditional: 0, unknown unconditional: 218] , Statistics on independence cache: Total cache size (in pairs): 36, Positive cache size: 26, Positive conditional cache size: 0, Positive unconditional cache size: 26, Negative cache size: 10, Negative conditional cache size: 0, Negative unconditional cache size: 10, 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 - PositiveResult [Line: 1000]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 96 locations, 10 error locations. Started 1 CEGAR loops. OverallTime: 15.7s, OverallIterations: 8, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 13.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 59 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 59 mSDsluCounter, 18 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2 mSDsCounter, 4 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 138 IncrementalHoareTripleChecker+Invalid, 142 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 4 mSolverCounterUnsat, 16 mSDtfsCounter, 138 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 11 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=58occurred in iteration=0, InterpolantAutomatonStates: 25, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 8 MinimizatonAttempts, 4 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.6s InterpolantComputationTime, 31 NumberOfCodeBlocks, 31 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 23 ConstructedInterpolants, 0 QuantifiedInterpolants, 246 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 7 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-11-18 21:01:50,142 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89b2a723-0eaf-4f7a-8b61-885ea58424be/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE