./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/pthread-wmm/safe022_tso.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version b5237d83 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7051b6fe-9aa1-40eb-8be1-aacee06fb437/bin/uautomizer-vX5HgA9Q3a/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7051b6fe-9aa1-40eb-8be1-aacee06fb437/bin/uautomizer-vX5HgA9Q3a/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7051b6fe-9aa1-40eb-8be1-aacee06fb437/bin/uautomizer-vX5HgA9Q3a/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7051b6fe-9aa1-40eb-8be1-aacee06fb437/bin/uautomizer-vX5HgA9Q3a/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/pthread-wmm/safe022_tso.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7051b6fe-9aa1-40eb-8be1-aacee06fb437/bin/uautomizer-vX5HgA9Q3a/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7051b6fe-9aa1-40eb-8be1-aacee06fb437/bin/uautomizer-vX5HgA9Q3a --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash cfc87f4ca115dcc389a4b05cbc106fd8bac1a9e17a58d50108d65580024dc2f5 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-b5237d8 [2022-11-21 16:17:39,506 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-21 16:17:39,508 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-21 16:17:39,528 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-21 16:17:39,528 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-21 16:17:39,529 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-21 16:17:39,531 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-21 16:17:39,533 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-21 16:17:39,535 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-21 16:17:39,536 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-21 16:17:39,537 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-21 16:17:39,538 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-21 16:17:39,539 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-21 16:17:39,540 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-21 16:17:39,541 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-21 16:17:39,543 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-21 16:17:39,544 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-21 16:17:39,545 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-21 16:17:39,550 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-21 16:17:39,553 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-21 16:17:39,554 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-21 16:17:39,556 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-21 16:17:39,557 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-21 16:17:39,559 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-21 16:17:39,563 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-21 16:17:39,563 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-21 16:17:39,563 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-21 16:17:39,565 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-21 16:17:39,565 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-21 16:17:39,566 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-21 16:17:39,567 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-21 16:17:39,568 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-21 16:17:39,569 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-21 16:17:39,570 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-21 16:17:39,571 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-21 16:17:39,571 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-21 16:17:39,572 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-21 16:17:39,573 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-21 16:17:39,573 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-21 16:17:39,574 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-21 16:17:39,575 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-21 16:17:39,580 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7051b6fe-9aa1-40eb-8be1-aacee06fb437/bin/uautomizer-vX5HgA9Q3a/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2022-11-21 16:17:39,617 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-21 16:17:39,618 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-21 16:17:39,618 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-21 16:17:39,618 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-21 16:17:39,619 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-21 16:17:39,619 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-21 16:17:39,620 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-21 16:17:39,620 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-21 16:17:39,621 INFO L138 SettingsManager]: * Use SBE=true [2022-11-21 16:17:39,621 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-21 16:17:39,621 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-21 16:17:39,622 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-21 16:17:39,622 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-21 16:17:39,622 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-21 16:17:39,622 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-21 16:17:39,623 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-11-21 16:17:39,629 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-11-21 16:17:39,629 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-11-21 16:17:39,629 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-21 16:17:39,629 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-21 16:17:39,629 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-21 16:17:39,630 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-21 16:17:39,630 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-21 16:17:39,630 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-21 16:17:39,631 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-21 16:17:39,631 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 16:17:39,631 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-21 16:17:39,631 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-21 16:17:39,632 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-21 16:17:39,633 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-21 16:17:39,633 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_7051b6fe-9aa1-40eb-8be1-aacee06fb437/bin/uautomizer-vX5HgA9Q3a/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7051b6fe-9aa1-40eb-8be1-aacee06fb437/bin/uautomizer-vX5HgA9Q3a Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cfc87f4ca115dcc389a4b05cbc106fd8bac1a9e17a58d50108d65580024dc2f5 [2022-11-21 16:17:39,897 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-21 16:17:39,920 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-21 16:17:39,922 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-21 16:17:39,924 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-21 16:17:39,925 INFO L275 PluginConnector]: CDTParser initialized [2022-11-21 16:17:39,926 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7051b6fe-9aa1-40eb-8be1-aacee06fb437/bin/uautomizer-vX5HgA9Q3a/../../sv-benchmarks/c/pthread-wmm/safe022_tso.i [2022-11-21 16:17:43,002 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-21 16:17:43,318 INFO L351 CDTParser]: Found 1 translation units. [2022-11-21 16:17:43,319 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7051b6fe-9aa1-40eb-8be1-aacee06fb437/sv-benchmarks/c/pthread-wmm/safe022_tso.i [2022-11-21 16:17:43,332 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7051b6fe-9aa1-40eb-8be1-aacee06fb437/bin/uautomizer-vX5HgA9Q3a/data/d35535524/953abf2ec9074a6698d0474e14e2f6d4/FLAG2ce09af1e [2022-11-21 16:17:43,350 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7051b6fe-9aa1-40eb-8be1-aacee06fb437/bin/uautomizer-vX5HgA9Q3a/data/d35535524/953abf2ec9074a6698d0474e14e2f6d4 [2022-11-21 16:17:43,352 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-21 16:17:43,354 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-21 16:17:43,356 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-21 16:17:43,356 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-21 16:17:43,360 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-21 16:17:43,361 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 04:17:43" (1/1) ... [2022-11-21 16:17:43,362 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2f89d242 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:17:43, skipping insertion in model container [2022-11-21 16:17:43,362 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 04:17:43" (1/1) ... [2022-11-21 16:17:43,370 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-21 16:17:43,410 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-21 16:17:43,577 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7051b6fe-9aa1-40eb-8be1-aacee06fb437/sv-benchmarks/c/pthread-wmm/safe022_tso.i[945,958] [2022-11-21 16:17:43,845 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 16:17:43,858 INFO L203 MainTranslator]: Completed pre-run [2022-11-21 16:17:43,871 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7051b6fe-9aa1-40eb-8be1-aacee06fb437/sv-benchmarks/c/pthread-wmm/safe022_tso.i[945,958] [2022-11-21 16:17:43,920 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 16:17:43,969 INFO L208 MainTranslator]: Completed translation [2022-11-21 16:17:43,970 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:17:43 WrapperNode [2022-11-21 16:17:43,971 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-21 16:17:43,973 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-21 16:17:43,974 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-21 16:17:43,974 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-21 16:17:43,984 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:17:43" (1/1) ... [2022-11-21 16:17:44,015 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:17:43" (1/1) ... [2022-11-21 16:17:44,042 INFO L138 Inliner]: procedures = 175, calls = 40, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 59 [2022-11-21 16:17:44,042 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-21 16:17:44,043 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-21 16:17:44,043 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-21 16:17:44,043 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-21 16:17:44,053 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:17:43" (1/1) ... [2022-11-21 16:17:44,054 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:17:43" (1/1) ... [2022-11-21 16:17:44,068 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:17:43" (1/1) ... [2022-11-21 16:17:44,069 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:17:43" (1/1) ... [2022-11-21 16:17:44,075 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:17:43" (1/1) ... [2022-11-21 16:17:44,083 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:17:43" (1/1) ... [2022-11-21 16:17:44,085 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:17:43" (1/1) ... [2022-11-21 16:17:44,096 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:17:43" (1/1) ... [2022-11-21 16:17:44,098 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-21 16:17:44,099 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-21 16:17:44,100 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-21 16:17:44,100 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-21 16:17:44,101 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:17:43" (1/1) ... [2022-11-21 16:17:44,113 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 16:17:44,125 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7051b6fe-9aa1-40eb-8be1-aacee06fb437/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 16:17:44,143 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7051b6fe-9aa1-40eb-8be1-aacee06fb437/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-21 16:17:44,172 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7051b6fe-9aa1-40eb-8be1-aacee06fb437/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-21 16:17:44,195 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-21 16:17:44,196 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-21 16:17:44,196 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-21 16:17:44,196 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-21 16:17:44,196 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-21 16:17:44,196 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-11-21 16:17:44,197 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-11-21 16:17:44,197 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-11-21 16:17:44,198 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-11-21 16:17:44,198 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-21 16:17:44,198 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-21 16:17:44,199 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-21 16:17:44,199 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-21 16:17:44,200 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-21 16:17:44,372 INFO L235 CfgBuilder]: Building ICFG [2022-11-21 16:17:44,375 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-21 16:17:44,587 INFO L276 CfgBuilder]: Performing block encoding [2022-11-21 16:17:44,593 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-21 16:17:44,603 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-21 16:17:44,605 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 04:17:44 BoogieIcfgContainer [2022-11-21 16:17:44,605 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-21 16:17:44,608 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-21 16:17:44,608 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-21 16:17:44,612 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-21 16:17:44,612 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 04:17:43" (1/3) ... [2022-11-21 16:17:44,613 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f0c8f08 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 04:17:44, skipping insertion in model container [2022-11-21 16:17:44,613 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:17:43" (2/3) ... [2022-11-21 16:17:44,614 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f0c8f08 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 04:17:44, skipping insertion in model container [2022-11-21 16:17:44,614 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 04:17:44" (3/3) ... [2022-11-21 16:17:44,615 INFO L112 eAbstractionObserver]: Analyzing ICFG safe022_tso.i [2022-11-21 16:17:44,639 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-21 16:17:44,640 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2022-11-21 16:17:44,640 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-21 16:17:44,704 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-21 16:17:44,748 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-21 16:17:44,763 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 88 places, 83 transitions, 176 flow [2022-11-21 16:17:44,766 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 88 places, 83 transitions, 176 flow [2022-11-21 16:17:44,768 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 88 places, 83 transitions, 176 flow [2022-11-21 16:17:44,821 INFO L130 PetriNetUnfolder]: 2/81 cut-off events. [2022-11-21 16:17:44,822 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-21 16:17:44,826 INFO L83 FinitePrefix]: Finished finitePrefix Result has 88 conditions, 81 events. 2/81 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 51 event pairs, 0 based on Foata normal form. 0/73 useless extension candidates. Maximal degree in co-relation 56. Up to 2 conditions per place. [2022-11-21 16:17:44,827 INFO L119 LiptonReduction]: Number of co-enabled transitions 972 [2022-11-21 16:17:48,027 INFO L134 LiptonReduction]: Checked pairs total: 2058 [2022-11-21 16:17:48,027 INFO L136 LiptonReduction]: Total number of compositions: 91 [2022-11-21 16:17:48,035 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 28 places, 22 transitions, 54 flow [2022-11-21 16:17:48,060 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 100 states, 94 states have (on average 2.4680851063829787) internal successors, (232), 99 states have internal predecessors, (232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:17:48,090 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-21 16:17:48,096 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;@45e38638, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-21 16:17:48,096 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2022-11-21 16:17:48,098 INFO L276 IsEmpty]: Start isEmpty. Operand has 100 states, 94 states have (on average 2.4680851063829787) internal successors, (232), 99 states have internal predecessors, (232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:17:48,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2 [2022-11-21 16:17:48,103 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:17:48,103 INFO L195 NwaCegarLoop]: trace histogram [1] [2022-11-21 16:17:48,103 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 5 more)] === [2022-11-21 16:17:48,108 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:17:48,108 INFO L85 PathProgramCache]: Analyzing trace with hash 309, now seen corresponding path program 1 times [2022-11-21 16:17:48,118 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:17:48,118 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [958705154] [2022-11-21 16:17:48,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:17:48,119 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:17:48,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:48,224 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:17:48,225 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:17:48,225 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [958705154] [2022-11-21 16:17:48,226 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [958705154] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:17:48,226 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:17:48,226 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-11-21 16:17:48,228 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [724131285] [2022-11-21 16:17:48,228 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:17:48,232 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-21 16:17:48,233 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:17:48,254 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-21 16:17:48,255 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-21 16:17:48,257 INFO L87 Difference]: Start difference. First operand has 100 states, 94 states have (on average 2.4680851063829787) internal successors, (232), 99 states have internal predecessors, (232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:17:48,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:17:48,309 INFO L93 Difference]: Finished difference Result 90 states and 200 transitions. [2022-11-21 16:17:48,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-21 16:17:48,312 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 1 [2022-11-21 16:17:48,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:17:48,325 INFO L225 Difference]: With dead ends: 90 [2022-11-21 16:17:48,325 INFO L226 Difference]: Without dead ends: 90 [2022-11-21 16:17:48,326 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-21 16:17:48,333 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 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 [2022-11-21 16:17:48,335 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 2 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-21 16:17:48,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2022-11-21 16:17:48,387 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 90. [2022-11-21 16:17:48,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90 states, 88 states have (on average 2.272727272727273) internal successors, (200), 89 states have internal predecessors, (200), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:17:48,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 200 transitions. [2022-11-21 16:17:48,397 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 200 transitions. Word has length 1 [2022-11-21 16:17:48,398 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:17:48,399 INFO L495 AbstractCegarLoop]: Abstraction has 90 states and 200 transitions. [2022-11-21 16:17:48,403 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:17:48,404 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 200 transitions. [2022-11-21 16:17:48,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-21 16:17:48,405 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:17:48,405 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:17:48,405 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-21 16:17:48,406 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 5 more)] === [2022-11-21 16:17:48,406 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:17:48,406 INFO L85 PathProgramCache]: Analyzing trace with hash 1603662009, now seen corresponding path program 1 times [2022-11-21 16:17:48,406 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:17:48,407 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [246648170] [2022-11-21 16:17:48,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:17:48,407 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:17:48,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:48,920 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:17:48,920 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:17:48,920 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [246648170] [2022-11-21 16:17:48,921 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [246648170] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:17:48,921 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:17:48,921 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-21 16:17:48,922 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2038182631] [2022-11-21 16:17:48,923 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:17:48,924 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-21 16:17:48,924 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:17:48,925 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-21 16:17:48,925 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-21 16:17:48,926 INFO L87 Difference]: Start difference. First operand 90 states and 200 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) [2022-11-21 16:17:48,970 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:17:48,973 INFO L93 Difference]: Finished difference Result 74 states and 160 transitions. [2022-11-21 16:17:48,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-21 16:17:48,974 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 [2022-11-21 16:17:48,974 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:17:48,978 INFO L225 Difference]: With dead ends: 74 [2022-11-21 16:17:48,978 INFO L226 Difference]: Without dead ends: 74 [2022-11-21 16:17:48,980 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 [2022-11-21 16:17:48,981 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 10 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 6 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 [2022-11-21 16:17:48,982 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 6 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-21 16:17:48,987 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2022-11-21 16:17:48,993 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 74. [2022-11-21 16:17:48,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74 states, 73 states have (on average 2.191780821917808) internal successors, (160), 73 states have internal predecessors, (160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:17:48,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 160 transitions. [2022-11-21 16:17:49,000 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 160 transitions. Word has length 7 [2022-11-21 16:17:49,001 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:17:49,001 INFO L495 AbstractCegarLoop]: Abstraction has 74 states and 160 transitions. [2022-11-21 16:17:49,001 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) [2022-11-21 16:17:49,002 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 160 transitions. [2022-11-21 16:17:49,002 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-21 16:17:49,002 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:17:49,003 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:17:49,003 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-21 16:17:49,004 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 5 more)] === [2022-11-21 16:17:49,006 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:17:49,008 INFO L85 PathProgramCache]: Analyzing trace with hash 1603661993, now seen corresponding path program 1 times [2022-11-21 16:17:49,008 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:17:49,008 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1609299222] [2022-11-21 16:17:49,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:17:49,012 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:17:49,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:49,167 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:17:49,167 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:17:49,168 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1609299222] [2022-11-21 16:17:49,168 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1609299222] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:17:49,168 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:17:49,168 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-21 16:17:49,168 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [822904868] [2022-11-21 16:17:49,169 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:17:49,169 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-21 16:17:49,169 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:17:49,170 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-21 16:17:49,170 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-21 16:17:49,170 INFO L87 Difference]: Start difference. First operand 74 states and 160 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) [2022-11-21 16:17:49,220 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:17:49,220 INFO L93 Difference]: Finished difference Result 82 states and 166 transitions. [2022-11-21 16:17:49,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-21 16:17:49,221 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 [2022-11-21 16:17:49,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:17:49,222 INFO L225 Difference]: With dead ends: 82 [2022-11-21 16:17:49,222 INFO L226 Difference]: Without dead ends: 66 [2022-11-21 16:17:49,223 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-21 16:17:49,224 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 13 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 8 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-21 16:17:49,224 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 8 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-21 16:17:49,225 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2022-11-21 16:17:49,229 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 66. [2022-11-21 16:17:49,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66 states, 65 states have (on average 2.123076923076923) internal successors, (138), 65 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:17:49,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 138 transitions. [2022-11-21 16:17:49,230 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 138 transitions. Word has length 7 [2022-11-21 16:17:49,231 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:17:49,231 INFO L495 AbstractCegarLoop]: Abstraction has 66 states and 138 transitions. [2022-11-21 16:17:49,231 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) [2022-11-21 16:17:49,231 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 138 transitions. [2022-11-21 16:17:49,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-21 16:17:49,232 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:17:49,232 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:17:49,232 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-21 16:17:49,233 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 5 more)] === [2022-11-21 16:17:49,233 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:17:49,233 INFO L85 PathProgramCache]: Analyzing trace with hash -1826119267, now seen corresponding path program 1 times [2022-11-21 16:17:49,234 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:17:49,255 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1944163650] [2022-11-21 16:17:49,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:17:49,256 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:17:49,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:49,412 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:17:49,412 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:17:49,412 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1944163650] [2022-11-21 16:17:49,414 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1944163650] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:17:49,415 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:17:49,415 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-21 16:17:49,418 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [817658055] [2022-11-21 16:17:49,418 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:17:49,419 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-21 16:17:49,419 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:17:49,419 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-21 16:17:49,420 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-21 16:17:49,420 INFO L87 Difference]: Start difference. First operand 66 states and 138 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) [2022-11-21 16:17:49,511 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:17:49,511 INFO L93 Difference]: Finished difference Result 78 states and 155 transitions. [2022-11-21 16:17:49,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-21 16:17:49,512 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 [2022-11-21 16:17:49,512 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:17:49,514 INFO L225 Difference]: With dead ends: 78 [2022-11-21 16:17:49,515 INFO L226 Difference]: Without dead ends: 42 [2022-11-21 16:17:49,515 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-21 16:17:49,517 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 28 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 10 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-21 16:17:49,518 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 10 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-21 16:17:49,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2022-11-21 16:17:49,521 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2022-11-21 16:17:49,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 41 states have (on average 1.853658536585366) internal successors, (76), 41 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:17:49,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 76 transitions. [2022-11-21 16:17:49,523 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 76 transitions. Word has length 8 [2022-11-21 16:17:49,523 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:17:49,523 INFO L495 AbstractCegarLoop]: Abstraction has 42 states and 76 transitions. [2022-11-21 16:17:49,523 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) [2022-11-21 16:17:49,524 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 76 transitions. [2022-11-21 16:17:49,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-21 16:17:49,524 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:17:49,525 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:17:49,525 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-21 16:17:49,525 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 5 more)] === [2022-11-21 16:17:49,525 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:17:49,526 INFO L85 PathProgramCache]: Analyzing trace with hash -1762261125, now seen corresponding path program 1 times [2022-11-21 16:17:49,526 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:17:49,526 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1007004800] [2022-11-21 16:17:49,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:17:49,527 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:17:49,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:49,623 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:17:49,623 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:17:49,623 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1007004800] [2022-11-21 16:17:49,624 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1007004800] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:17:49,624 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:17:49,624 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-21 16:17:49,624 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [303531249] [2022-11-21 16:17:49,624 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:17:49,625 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 16:17:49,625 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:17:49,625 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 16:17:49,626 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 16:17:49,626 INFO L87 Difference]: Start difference. First operand 42 states and 76 transitions. Second operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:17:49,647 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:17:49,648 INFO L93 Difference]: Finished difference Result 33 states and 51 transitions. [2022-11-21 16:17:49,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 16:17:49,648 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 2 states have internal predecessors, (10), 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 10 [2022-11-21 16:17:49,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:17:49,649 INFO L225 Difference]: With dead ends: 33 [2022-11-21 16:17:49,649 INFO L226 Difference]: Without dead ends: 33 [2022-11-21 16:17:49,649 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 16:17:49,650 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 2 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 3 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-21 16:17:49,651 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 3 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-21 16:17:49,651 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2022-11-21 16:17:49,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2022-11-21 16:17:49,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 32 states have (on average 1.59375) internal successors, (51), 32 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:17:49,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 51 transitions. [2022-11-21 16:17:49,654 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 51 transitions. Word has length 10 [2022-11-21 16:17:49,655 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:17:49,655 INFO L495 AbstractCegarLoop]: Abstraction has 33 states and 51 transitions. [2022-11-21 16:17:49,655 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:17:49,655 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 51 transitions. [2022-11-21 16:17:49,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-21 16:17:49,656 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:17:49,656 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:17:49,656 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-21 16:17:49,657 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 5 more)] === [2022-11-21 16:17:49,657 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:17:49,657 INFO L85 PathProgramCache]: Analyzing trace with hash 217260934, now seen corresponding path program 1 times [2022-11-21 16:17:49,658 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:17:49,658 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1940223046] [2022-11-21 16:17:49,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:17:49,658 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:17:49,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:49,758 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:17:49,758 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:17:49,759 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1940223046] [2022-11-21 16:17:49,759 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1940223046] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:17:49,759 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:17:49,759 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-21 16:17:49,759 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1177224780] [2022-11-21 16:17:49,760 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:17:49,760 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-21 16:17:49,760 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:17:49,760 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-21 16:17:49,761 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-21 16:17:49,761 INFO L87 Difference]: Start difference. First operand 33 states and 51 transitions. Second operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:17:49,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:17:49,789 INFO L93 Difference]: Finished difference Result 23 states and 31 transitions. [2022-11-21 16:17:49,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-21 16:17:49,790 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2022-11-21 16:17:49,790 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:17:49,790 INFO L225 Difference]: With dead ends: 23 [2022-11-21 16:17:49,790 INFO L226 Difference]: Without dead ends: 23 [2022-11-21 16:17:49,791 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-21 16:17:49,792 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 9 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 3 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-21 16:17:49,792 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 3 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-21 16:17:49,793 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2022-11-21 16:17:49,794 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2022-11-21 16:17:49,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 22 states have (on average 1.4090909090909092) internal successors, (31), 22 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:17:49,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 31 transitions. [2022-11-21 16:17:49,795 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 31 transitions. Word has length 11 [2022-11-21 16:17:49,795 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:17:49,795 INFO L495 AbstractCegarLoop]: Abstraction has 23 states and 31 transitions. [2022-11-21 16:17:49,796 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:17:49,796 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 31 transitions. [2022-11-21 16:17:49,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-11-21 16:17:49,796 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:17:49,797 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:17:49,797 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-21 16:17:49,797 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 5 more)] === [2022-11-21 16:17:49,798 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:17:49,798 INFO L85 PathProgramCache]: Analyzing trace with hash 1332329632, now seen corresponding path program 1 times [2022-11-21 16:17:49,798 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:17:49,798 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [890367124] [2022-11-21 16:17:49,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:17:49,799 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:17:49,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:17:49,900 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:17:49,901 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:17:49,901 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [890367124] [2022-11-21 16:17:49,901 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [890367124] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:17:49,901 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:17:49,902 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-21 16:17:49,902 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1851626564] [2022-11-21 16:17:49,902 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:17:49,902 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-21 16:17:49,902 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:17:49,903 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-21 16:17:49,903 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-21 16:17:49,903 INFO L87 Difference]: Start difference. First operand 23 states and 31 transitions. Second operand has 5 states, 4 states have (on average 3.25) internal successors, (13), 5 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:17:49,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:17:49,945 INFO L93 Difference]: Finished difference Result 22 states and 30 transitions. [2022-11-21 16:17:49,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-21 16:17:49,945 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.25) internal successors, (13), 5 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2022-11-21 16:17:49,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:17:49,946 INFO L225 Difference]: With dead ends: 22 [2022-11-21 16:17:49,946 INFO L226 Difference]: Without dead ends: 0 [2022-11-21 16:17:49,946 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-11-21 16:17:49,947 INFO L413 NwaCegarLoop]: 1 mSDtfsCounter, 6 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 3 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-21 16:17:49,947 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 3 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-21 16:17:49,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-21 16:17:49,948 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-21 16:17:49,948 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) [2022-11-21 16:17:49,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-21 16:17:49,962 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 13 [2022-11-21 16:17:49,962 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:17:49,963 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-21 16:17:49,963 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.25) internal successors, (13), 5 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:17:49,963 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-21 16:17:49,963 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-21 16:17:49,966 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (7 of 8 remaining) [2022-11-21 16:17:49,967 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 8 remaining) [2022-11-21 16:17:49,967 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 8 remaining) [2022-11-21 16:17:49,967 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 8 remaining) [2022-11-21 16:17:49,968 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK (3 of 8 remaining) [2022-11-21 16:17:49,968 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK (2 of 8 remaining) [2022-11-21 16:17:49,968 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 8 remaining) [2022-11-21 16:17:49,969 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 8 remaining) [2022-11-21 16:17:49,969 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-21 16:17:49,971 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:17:49,974 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-21 16:17:49,975 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-21 16:17:49,978 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.11 04:17:49 BasicIcfg [2022-11-21 16:17:49,978 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-21 16:17:49,979 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-21 16:17:49,979 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-21 16:17:49,979 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-21 16:17:49,980 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 04:17:44" (3/4) ... [2022-11-21 16:17:49,983 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-21 16:17:49,990 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2022-11-21 16:17:49,990 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2022-11-21 16:17:49,995 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 18 nodes and edges [2022-11-21 16:17:49,995 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-11-21 16:17:49,995 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2022-11-21 16:17:49,995 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-21 16:17:50,028 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7051b6fe-9aa1-40eb-8be1-aacee06fb437/bin/uautomizer-vX5HgA9Q3a/witness.graphml [2022-11-21 16:17:50,028 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-21 16:17:50,029 INFO L158 Benchmark]: Toolchain (without parser) took 6675.18ms. Allocated memory was 176.2MB in the beginning and 211.8MB in the end (delta: 35.7MB). Free memory was 144.0MB in the beginning and 175.5MB in the end (delta: -31.5MB). Peak memory consumption was 7.3MB. Max. memory is 16.1GB. [2022-11-21 16:17:50,029 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 134.2MB. Free memory was 77.0MB in the beginning and 76.8MB in the end (delta: 117.6kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-21 16:17:50,030 INFO L158 Benchmark]: CACSL2BoogieTranslator took 616.39ms. Allocated memory is still 176.2MB. Free memory was 144.0MB in the beginning and 123.2MB in the end (delta: 20.8MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2022-11-21 16:17:50,030 INFO L158 Benchmark]: Boogie Procedure Inliner took 69.71ms. Allocated memory is still 176.2MB. Free memory was 123.2MB in the beginning and 122.0MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-21 16:17:50,031 INFO L158 Benchmark]: Boogie Preprocessor took 55.49ms. Allocated memory is still 176.2MB. Free memory was 122.0MB in the beginning and 119.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-21 16:17:50,031 INFO L158 Benchmark]: RCFGBuilder took 506.28ms. Allocated memory is still 176.2MB. Free memory was 119.9MB in the beginning and 106.5MB in the end (delta: 13.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-21 16:17:50,031 INFO L158 Benchmark]: TraceAbstraction took 5370.05ms. Allocated memory was 176.2MB in the beginning and 211.8MB in the end (delta: 35.7MB). Free memory was 105.3MB in the beginning and 178.6MB in the end (delta: -73.3MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-21 16:17:50,032 INFO L158 Benchmark]: Witness Printer took 49.95ms. Allocated memory is still 211.8MB. Free memory was 178.6MB in the beginning and 175.5MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-21 16:17:50,034 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32ms. Allocated memory is still 134.2MB. Free memory was 77.0MB in the beginning and 76.8MB in the end (delta: 117.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 616.39ms. Allocated memory is still 176.2MB. Free memory was 144.0MB in the beginning and 123.2MB in the end (delta: 20.8MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 69.71ms. Allocated memory is still 176.2MB. Free memory was 123.2MB in the beginning and 122.0MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 55.49ms. Allocated memory is still 176.2MB. Free memory was 122.0MB in the beginning and 119.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 506.28ms. Allocated memory is still 176.2MB. Free memory was 119.9MB in the beginning and 106.5MB in the end (delta: 13.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 5370.05ms. Allocated memory was 176.2MB in the beginning and 211.8MB in the end (delta: 35.7MB). Free memory was 105.3MB in the beginning and 178.6MB in the end (delta: -73.3MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 49.95ms. Allocated memory is still 211.8MB. Free memory was 178.6MB in the beginning and 175.5MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 3.3s, 88 PlacesBefore, 28 PlacesAfterwards, 83 TransitionsBefore, 22 TransitionsAfterwards, 972 CoEnabledTransitionPairs, 6 FixpointIterations, 33 TrivialSequentialCompositions, 49 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 8 ConcurrentYvCompositions, 1 ChoiceCompositions, 91 TotalNumberOfCompositions, 2058 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1371, independent: 1301, independent conditional: 0, independent unconditional: 1301, dependent: 70, dependent conditional: 0, dependent unconditional: 70, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 762, independent: 735, independent conditional: 0, independent unconditional: 735, dependent: 27, dependent conditional: 0, dependent unconditional: 27, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 762, independent: 735, independent conditional: 0, independent unconditional: 735, dependent: 27, dependent conditional: 0, dependent unconditional: 27, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 27, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 27, dependent conditional: 0, dependent unconditional: 27, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 110, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 110, dependent conditional: 0, dependent unconditional: 110, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 1371, independent: 566, independent conditional: 0, independent unconditional: 566, dependent: 43, dependent conditional: 0, dependent unconditional: 43, unknown: 762, unknown conditional: 0, unknown unconditional: 762] , Statistics on independence cache: Total cache size (in pairs): 65, Positive cache size: 56, Positive conditional cache size: 0, Positive unconditional cache size: 56, Negative cache size: 9, Negative conditional cache size: 0, Negative unconditional cache size: 9, 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: -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: 18]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 758]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 98 locations, 8 error locations. Started 1 CEGAR loops. OverallTime: 5.2s, OverallIterations: 7, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.3s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 68 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 68 mSDsluCounter, 35 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 17 mSDsCounter, 3 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 205 IncrementalHoareTripleChecker+Invalid, 208 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3 mSolverCounterUnsat, 18 mSDtfsCounter, 205 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 22 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=100occurred in iteration=0, InterpolantAutomatonStates: 29, 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, 7 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 57 NumberOfCodeBlocks, 57 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 50 ConstructedInterpolants, 0 QuantifiedInterpolants, 236 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 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 6 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-11-21 16:17:50,060 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7051b6fe-9aa1-40eb-8be1-aacee06fb437/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE