./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/goblint-regression/04-mutex_10-ptrmunge_nr.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_300fedd7-6ac0-412c-ab88-ed209c6afbf3/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_300fedd7-6ac0-412c-ab88-ed209c6afbf3/bin/uautomizer-verify-84ZbGMXZE1/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_300fedd7-6ac0-412c-ab88-ed209c6afbf3/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_300fedd7-6ac0-412c-ab88-ed209c6afbf3/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/goblint-regression/04-mutex_10-ptrmunge_nr.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_300fedd7-6ac0-412c-ab88-ed209c6afbf3/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_300fedd7-6ac0-412c-ab88-ed209c6afbf3/bin/uautomizer-verify-84ZbGMXZE1 --witnessprinter.witness.filename witness --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 b7b2dab104eee1bd1f440bec4a0db415f1c26fa4fc41062d03a3a4935f69226f --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 14:21:45,760 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 14:21:45,824 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_300fedd7-6ac0-412c-ab88-ed209c6afbf3/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-12-02 14:21:45,829 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 14:21:45,830 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 14:21:45,856 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 14:21:45,856 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 14:21:45,857 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 14:21:45,857 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 14:21:45,857 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 14:21:45,857 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 14:21:45,857 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 14:21:45,858 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 14:21:45,858 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 14:21:45,858 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 14:21:45,858 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 14:21:45,858 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-02 14:21:45,858 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-02 14:21:45,859 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-02 14:21:45,859 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 14:21:45,859 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-12-02 14:21:45,859 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-12-02 14:21:45,859 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-12-02 14:21:45,859 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 14:21:45,859 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-12-02 14:21:45,859 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-12-02 14:21:45,859 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-02 14:21:45,859 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 14:21:45,859 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 14:21:45,860 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 14:21:45,860 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 14:21:45,860 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 14:21:45,860 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 14:21:45,860 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 14:21:45,860 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 14:21:45,860 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 14:21:45,860 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 14:21:45,860 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 14:21:45,860 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 14:21:45,861 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 14:21:45,861 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 14:21:45,861 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-12-02 14:21:45,861 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-02 14:21:45,861 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 14:21:45,861 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 14:21:45,861 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 14:21:45,861 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 14:21:45,861 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_300fedd7-6ac0-412c-ab88-ed209c6afbf3/bin/uautomizer-verify-84ZbGMXZE1 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness 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 -> b7b2dab104eee1bd1f440bec4a0db415f1c26fa4fc41062d03a3a4935f69226f [2024-12-02 14:21:46,135 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 14:21:46,144 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 14:21:46,147 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 14:21:46,149 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 14:21:46,149 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 14:21:46,151 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_300fedd7-6ac0-412c-ab88-ed209c6afbf3/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/goblint-regression/04-mutex_10-ptrmunge_nr.i [2024-12-02 14:21:49,482 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_300fedd7-6ac0-412c-ab88-ed209c6afbf3/bin/uautomizer-verify-84ZbGMXZE1/data/03c42efcf/fec715d1bddb488da424c23ada898866/FLAGa0d7bbdff [2024-12-02 14:21:49,762 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 14:21:49,763 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_300fedd7-6ac0-412c-ab88-ed209c6afbf3/sv-benchmarks/c/goblint-regression/04-mutex_10-ptrmunge_nr.i [2024-12-02 14:21:49,778 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_300fedd7-6ac0-412c-ab88-ed209c6afbf3/bin/uautomizer-verify-84ZbGMXZE1/data/03c42efcf/fec715d1bddb488da424c23ada898866/FLAGa0d7bbdff [2024-12-02 14:21:50,045 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_300fedd7-6ac0-412c-ab88-ed209c6afbf3/bin/uautomizer-verify-84ZbGMXZE1/data/03c42efcf/fec715d1bddb488da424c23ada898866 [2024-12-02 14:21:50,047 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 14:21:50,049 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 14:21:50,050 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 14:21:50,050 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 14:21:50,054 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 14:21:50,055 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 02:21:50" (1/1) ... [2024-12-02 14:21:50,056 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@bc2f930 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:21:50, skipping insertion in model container [2024-12-02 14:21:50,056 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 02:21:50" (1/1) ... [2024-12-02 14:21:50,089 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 14:21:50,499 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 14:21:50,523 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 14:21:50,575 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 14:21:50,643 INFO L204 MainTranslator]: Completed translation [2024-12-02 14:21:50,643 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:21:50 WrapperNode [2024-12-02 14:21:50,643 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 14:21:50,644 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 14:21:50,644 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 14:21:50,644 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 14:21:50,651 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:21:50" (1/1) ... [2024-12-02 14:21:50,666 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:21:50" (1/1) ... [2024-12-02 14:21:50,690 INFO L138 Inliner]: procedures = 263, calls = 25, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 61 [2024-12-02 14:21:50,691 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 14:21:50,691 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 14:21:50,691 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 14:21:50,692 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 14:21:50,702 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:21:50" (1/1) ... [2024-12-02 14:21:50,702 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:21:50" (1/1) ... [2024-12-02 14:21:50,706 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:21:50" (1/1) ... [2024-12-02 14:21:50,723 INFO L175 MemorySlicer]: Split 16 memory accesses to 4 slices as follows [5, 3, 5, 3]. 31 percent of accesses are in the largest equivalence class. The 12 initializations are split as follows [5, 1, 5, 1]. The 2 writes are split as follows [0, 1, 0, 1]. [2024-12-02 14:21:50,723 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:21:50" (1/1) ... [2024-12-02 14:21:50,724 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:21:50" (1/1) ... [2024-12-02 14:21:50,731 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:21:50" (1/1) ... [2024-12-02 14:21:50,732 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:21:50" (1/1) ... [2024-12-02 14:21:50,734 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:21:50" (1/1) ... [2024-12-02 14:21:50,736 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:21:50" (1/1) ... [2024-12-02 14:21:50,737 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:21:50" (1/1) ... [2024-12-02 14:21:50,740 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 14:21:50,741 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 14:21:50,741 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 14:21:50,741 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 14:21:50,742 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:21:50" (1/1) ... [2024-12-02 14:21:50,749 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 14:21:50,763 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_300fedd7-6ac0-412c-ab88-ed209c6afbf3/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 14:21:50,779 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_300fedd7-6ac0-412c-ab88-ed209c6afbf3/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-02 14:21:50,782 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_300fedd7-6ac0-412c-ab88-ed209c6afbf3/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-02 14:21:50,812 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-12-02 14:21:50,812 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-12-02 14:21:50,812 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-12-02 14:21:50,812 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-12-02 14:21:50,812 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-12-02 14:21:50,813 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-12-02 14:21:50,813 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-12-02 14:21:50,813 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-12-02 14:21:50,813 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-12-02 14:21:50,813 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-12-02 14:21:50,813 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 14:21:50,813 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-12-02 14:21:50,813 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-12-02 14:21:50,813 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-12-02 14:21:50,813 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-12-02 14:21:50,813 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-12-02 14:21:50,814 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-12-02 14:21:50,814 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 14:21:50,814 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 14:21:50,815 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-12-02 14:21:50,964 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 14:21:50,966 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 14:21:51,149 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-12-02 14:21:51,150 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 14:21:51,254 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 14:21:51,254 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-12-02 14:21:51,255 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 02:21:51 BoogieIcfgContainer [2024-12-02 14:21:51,255 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 14:21:51,257 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-02 14:21:51,257 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-02 14:21:51,261 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-02 14:21:51,261 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 02:21:50" (1/3) ... [2024-12-02 14:21:51,262 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@682ee3e3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 02:21:51, skipping insertion in model container [2024-12-02 14:21:51,262 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:21:50" (2/3) ... [2024-12-02 14:21:51,262 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@682ee3e3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 02:21:51, skipping insertion in model container [2024-12-02 14:21:51,262 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 02:21:51" (3/3) ... [2024-12-02 14:21:51,264 INFO L128 eAbstractionObserver]: Analyzing ICFG 04-mutex_10-ptrmunge_nr.i [2024-12-02 14:21:51,276 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-02 14:21:51,278 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG 04-mutex_10-ptrmunge_nr.i that has 2 procedures, 30 locations, 1 initial locations, 0 loop locations, and 9 error locations. [2024-12-02 14:21:51,278 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-12-02 14:21:51,320 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-12-02 14:21:51,352 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 33 places, 29 transitions, 65 flow [2024-12-02 14:21:51,383 INFO L124 PetriNetUnfolderBase]: 0/28 cut-off events. [2024-12-02 14:21:51,386 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-12-02 14:21:51,388 INFO L83 FinitePrefix]: Finished finitePrefix Result has 33 conditions, 28 events. 0/28 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 58 event pairs, 0 based on Foata normal form. 0/19 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2024-12-02 14:21:51,389 INFO L82 GeneralOperation]: Start removeDead. Operand has 33 places, 29 transitions, 65 flow [2024-12-02 14:21:51,391 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 31 places, 27 transitions, 60 flow [2024-12-02 14:21:51,402 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 14:21:51,416 INFO L333 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, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=None, 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;@5dcf128e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 14:21:51,416 INFO L334 AbstractCegarLoop]: Starting to check reachability of 14 error locations. [2024-12-02 14:21:51,423 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-12-02 14:21:51,424 INFO L124 PetriNetUnfolderBase]: 0/9 cut-off events. [2024-12-02 14:21:51,424 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-12-02 14:21:51,424 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 14:21:51,425 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2024-12-02 14:21:51,425 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 11 more)] === [2024-12-02 14:21:51,441 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:21:51,442 INFO L85 PathProgramCache]: Analyzing trace with hash 1664762794, now seen corresponding path program 1 times [2024-12-02 14:21:51,449 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:21:51,449 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2012906922] [2024-12-02 14:21:51,450 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:21:51,450 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:21:51,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:21:51,791 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 14:21:51,791 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:21:51,792 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2012906922] [2024-12-02 14:21:51,792 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2012906922] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:21:51,793 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:21:51,793 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-12-02 14:21:51,795 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [142494334] [2024-12-02 14:21:51,796 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:21:51,802 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 14:21:51,806 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:21:51,826 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 14:21:51,826 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 14:21:51,866 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 29 [2024-12-02 14:21:51,869 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 31 places, 27 transitions, 60 flow. Second operand has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 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) [2024-12-02 14:21:51,869 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 14:21:51,870 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 29 [2024-12-02 14:21:51,871 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 14:21:51,984 INFO L124 PetriNetUnfolderBase]: 25/101 cut-off events. [2024-12-02 14:21:51,984 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-12-02 14:21:51,986 INFO L83 FinitePrefix]: Finished finitePrefix Result has 170 conditions, 101 events. 25/101 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 364 event pairs, 5 based on Foata normal form. 6/94 useless extension candidates. Maximal degree in co-relation 156. Up to 44 conditions per place. [2024-12-02 14:21:51,988 INFO L140 encePairwiseOnDemand]: 24/29 looper letters, 15 selfloop transitions, 3 changer transitions 0/30 dead transitions. [2024-12-02 14:21:51,988 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 32 places, 30 transitions, 102 flow [2024-12-02 14:21:51,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 14:21:51,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-12-02 14:21:52,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 72 transitions. [2024-12-02 14:21:52,004 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6206896551724138 [2024-12-02 14:21:52,006 INFO L175 Difference]: Start difference. First operand has 31 places, 27 transitions, 60 flow. Second operand 4 states and 72 transitions. [2024-12-02 14:21:52,007 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 32 places, 30 transitions, 102 flow [2024-12-02 14:21:52,012 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 30 places, 30 transitions, 98 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-12-02 14:21:52,015 INFO L231 Difference]: Finished difference. Result has 30 places, 25 transitions, 58 flow [2024-12-02 14:21:52,019 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=29, PETRI_DIFFERENCE_MINUEND_FLOW=52, PETRI_DIFFERENCE_MINUEND_PLACES=27, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=25, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=58, PETRI_PLACES=30, PETRI_TRANSITIONS=25} [2024-12-02 14:21:52,022 INFO L279 CegarLoopForPetriNet]: 31 programPoint places, -1 predicate places. [2024-12-02 14:21:52,022 INFO L471 AbstractCegarLoop]: Abstraction has has 30 places, 25 transitions, 58 flow [2024-12-02 14:21:52,022 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 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) [2024-12-02 14:21:52,022 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 14:21:52,022 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2024-12-02 14:21:52,023 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-12-02 14:21:52,023 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 11 more)] === [2024-12-02 14:21:52,023 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:21:52,023 INFO L85 PathProgramCache]: Analyzing trace with hash 1665253555, now seen corresponding path program 1 times [2024-12-02 14:21:52,023 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:21:52,024 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [516977889] [2024-12-02 14:21:52,024 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:21:52,024 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:21:52,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:21:52,146 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 14:21:52,146 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:21:52,146 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [516977889] [2024-12-02 14:21:52,146 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [516977889] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:21:52,146 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:21:52,146 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-12-02 14:21:52,146 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [686361695] [2024-12-02 14:21:52,147 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:21:52,147 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 14:21:52,148 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:21:52,148 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 14:21:52,148 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 14:21:52,190 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 29 [2024-12-02 14:21:52,191 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 30 places, 25 transitions, 58 flow. Second operand has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 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) [2024-12-02 14:21:52,191 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 14:21:52,191 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 29 [2024-12-02 14:21:52,191 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 14:21:52,279 INFO L124 PetriNetUnfolderBase]: 25/97 cut-off events. [2024-12-02 14:21:52,279 INFO L125 PetriNetUnfolderBase]: For 9/9 co-relation queries the response was YES. [2024-12-02 14:21:52,279 INFO L83 FinitePrefix]: Finished finitePrefix Result has 177 conditions, 97 events. 25/97 cut-off events. For 9/9 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 341 event pairs, 5 based on Foata normal form. 6/94 useless extension candidates. Maximal degree in co-relation 90. Up to 44 conditions per place. [2024-12-02 14:21:52,280 INFO L140 encePairwiseOnDemand]: 24/29 looper letters, 15 selfloop transitions, 3 changer transitions 0/28 dead transitions. [2024-12-02 14:21:52,280 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 31 places, 28 transitions, 104 flow [2024-12-02 14:21:52,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 14:21:52,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-12-02 14:21:52,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 72 transitions. [2024-12-02 14:21:52,282 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6206896551724138 [2024-12-02 14:21:52,282 INFO L175 Difference]: Start difference. First operand has 30 places, 25 transitions, 58 flow. Second operand 4 states and 72 transitions. [2024-12-02 14:21:52,282 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 31 places, 28 transitions, 104 flow [2024-12-02 14:21:52,283 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 28 places, 28 transitions, 94 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-12-02 14:21:52,284 INFO L231 Difference]: Finished difference. Result has 28 places, 23 transitions, 54 flow [2024-12-02 14:21:52,284 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=29, PETRI_DIFFERENCE_MINUEND_FLOW=48, PETRI_DIFFERENCE_MINUEND_PLACES=25, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=23, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=54, PETRI_PLACES=28, PETRI_TRANSITIONS=23} [2024-12-02 14:21:52,285 INFO L279 CegarLoopForPetriNet]: 31 programPoint places, -3 predicate places. [2024-12-02 14:21:52,285 INFO L471 AbstractCegarLoop]: Abstraction has has 28 places, 23 transitions, 54 flow [2024-12-02 14:21:52,285 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 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) [2024-12-02 14:21:52,285 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 14:21:52,285 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2024-12-02 14:21:52,286 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-12-02 14:21:52,286 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 11 more)] === [2024-12-02 14:21:52,286 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:21:52,287 INFO L85 PathProgramCache]: Analyzing trace with hash 1665253556, now seen corresponding path program 1 times [2024-12-02 14:21:52,287 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:21:52,287 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1075252609] [2024-12-02 14:21:52,287 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:21:52,287 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:21:52,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:21:52,438 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 14:21:52,438 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:21:52,438 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1075252609] [2024-12-02 14:21:52,438 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1075252609] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:21:52,438 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:21:52,438 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-12-02 14:21:52,438 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2110746189] [2024-12-02 14:21:52,439 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:21:52,439 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 14:21:52,439 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:21:52,439 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 14:21:52,440 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 14:21:52,471 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 29 [2024-12-02 14:21:52,471 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 28 places, 23 transitions, 54 flow. Second operand has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 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) [2024-12-02 14:21:52,471 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 14:21:52,471 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 29 [2024-12-02 14:21:52,471 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 14:21:52,577 INFO L124 PetriNetUnfolderBase]: 25/81 cut-off events. [2024-12-02 14:21:52,577 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2024-12-02 14:21:52,577 INFO L83 FinitePrefix]: Finished finitePrefix Result has 161 conditions, 81 events. 25/81 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 232 event pairs, 11 based on Foata normal form. 6/83 useless extension candidates. Maximal degree in co-relation 56. Up to 44 conditions per place. [2024-12-02 14:21:52,578 INFO L140 encePairwiseOnDemand]: 24/29 looper letters, 15 selfloop transitions, 3 changer transitions 0/26 dead transitions. [2024-12-02 14:21:52,578 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 29 places, 26 transitions, 96 flow [2024-12-02 14:21:52,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 14:21:52,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-12-02 14:21:52,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 72 transitions. [2024-12-02 14:21:52,580 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6206896551724138 [2024-12-02 14:21:52,580 INFO L175 Difference]: Start difference. First operand has 28 places, 23 transitions, 54 flow. Second operand 4 states and 72 transitions. [2024-12-02 14:21:52,580 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 29 places, 26 transitions, 96 flow [2024-12-02 14:21:52,581 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 26 places, 26 transitions, 90 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-12-02 14:21:52,581 INFO L231 Difference]: Finished difference. Result has 26 places, 21 transitions, 50 flow [2024-12-02 14:21:52,582 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=29, PETRI_DIFFERENCE_MINUEND_FLOW=44, PETRI_DIFFERENCE_MINUEND_PLACES=23, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=21, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=18, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=50, PETRI_PLACES=26, PETRI_TRANSITIONS=21} [2024-12-02 14:21:52,582 INFO L279 CegarLoopForPetriNet]: 31 programPoint places, -5 predicate places. [2024-12-02 14:21:52,583 INFO L471 AbstractCegarLoop]: Abstraction has has 26 places, 21 transitions, 50 flow [2024-12-02 14:21:52,583 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 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) [2024-12-02 14:21:52,583 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 14:21:52,583 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2024-12-02 14:21:52,583 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-12-02 14:21:52,583 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 11 more)] === [2024-12-02 14:21:52,584 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:21:52,584 INFO L85 PathProgramCache]: Analyzing trace with hash 1664762795, now seen corresponding path program 1 times [2024-12-02 14:21:52,584 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:21:52,584 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [379825853] [2024-12-02 14:21:52,584 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:21:52,584 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:21:52,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:21:52,703 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 14:21:52,703 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:21:52,703 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [379825853] [2024-12-02 14:21:52,704 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [379825853] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:21:52,704 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:21:52,704 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-12-02 14:21:52,704 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1216688328] [2024-12-02 14:21:52,704 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:21:52,704 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 14:21:52,704 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:21:52,705 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 14:21:52,705 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 14:21:52,729 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 29 [2024-12-02 14:21:52,730 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 26 places, 21 transitions, 50 flow. Second operand has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 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) [2024-12-02 14:21:52,730 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 14:21:52,730 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 29 [2024-12-02 14:21:52,730 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 14:21:52,819 INFO L124 PetriNetUnfolderBase]: 25/77 cut-off events. [2024-12-02 14:21:52,819 INFO L125 PetriNetUnfolderBase]: For 5/5 co-relation queries the response was YES. [2024-12-02 14:21:52,819 INFO L83 FinitePrefix]: Finished finitePrefix Result has 157 conditions, 77 events. 25/77 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 212 event pairs, 11 based on Foata normal form. 6/81 useless extension candidates. Maximal degree in co-relation 80. Up to 44 conditions per place. [2024-12-02 14:21:52,820 INFO L140 encePairwiseOnDemand]: 24/29 looper letters, 15 selfloop transitions, 3 changer transitions 0/24 dead transitions. [2024-12-02 14:21:52,820 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 27 places, 24 transitions, 96 flow [2024-12-02 14:21:52,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 14:21:52,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-12-02 14:21:52,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 72 transitions. [2024-12-02 14:21:52,822 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6206896551724138 [2024-12-02 14:21:52,822 INFO L175 Difference]: Start difference. First operand has 26 places, 21 transitions, 50 flow. Second operand 4 states and 72 transitions. [2024-12-02 14:21:52,822 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 27 places, 24 transitions, 96 flow [2024-12-02 14:21:52,822 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 24 places, 24 transitions, 86 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-12-02 14:21:52,823 INFO L231 Difference]: Finished difference. Result has 24 places, 19 transitions, 46 flow [2024-12-02 14:21:52,823 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=29, PETRI_DIFFERENCE_MINUEND_FLOW=40, PETRI_DIFFERENCE_MINUEND_PLACES=21, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=19, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=46, PETRI_PLACES=24, PETRI_TRANSITIONS=19} [2024-12-02 14:21:52,824 INFO L279 CegarLoopForPetriNet]: 31 programPoint places, -7 predicate places. [2024-12-02 14:21:52,824 INFO L471 AbstractCegarLoop]: Abstraction has has 24 places, 19 transitions, 46 flow [2024-12-02 14:21:52,825 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 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) [2024-12-02 14:21:52,825 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 14:21:52,825 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 14:21:52,825 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-12-02 14:21:52,825 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 11 more)] === [2024-12-02 14:21:52,826 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:21:52,826 INFO L85 PathProgramCache]: Analyzing trace with hash -1282818976, now seen corresponding path program 1 times [2024-12-02 14:21:52,826 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:21:52,826 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [681817903] [2024-12-02 14:21:52,826 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:21:52,826 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:21:52,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:21:52,885 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 14:21:52,885 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:21:52,885 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [681817903] [2024-12-02 14:21:52,885 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [681817903] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:21:52,885 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:21:52,885 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-12-02 14:21:52,886 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2025503554] [2024-12-02 14:21:52,886 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:21:52,886 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 14:21:52,886 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:21:52,887 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 14:21:52,887 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 14:21:52,902 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 29 [2024-12-02 14:21:52,903 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 24 places, 19 transitions, 46 flow. Second operand has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 14:21:52,903 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 14:21:52,903 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 29 [2024-12-02 14:21:52,903 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 14:21:52,943 INFO L124 PetriNetUnfolderBase]: 25/76 cut-off events. [2024-12-02 14:21:52,943 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2024-12-02 14:21:52,944 INFO L83 FinitePrefix]: Finished finitePrefix Result has 156 conditions, 76 events. 25/76 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 205 event pairs, 25 based on Foata normal form. 1/75 useless extension candidates. Maximal degree in co-relation 86. Up to 63 conditions per place. [2024-12-02 14:21:52,944 INFO L140 encePairwiseOnDemand]: 27/29 looper letters, 0 selfloop transitions, 0 changer transitions 18/18 dead transitions. [2024-12-02 14:21:52,944 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 25 places, 18 transitions, 70 flow [2024-12-02 14:21:52,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 14:21:52,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-12-02 14:21:52,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 56 transitions. [2024-12-02 14:21:52,945 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6436781609195402 [2024-12-02 14:21:52,945 INFO L175 Difference]: Start difference. First operand has 24 places, 19 transitions, 46 flow. Second operand 3 states and 56 transitions. [2024-12-02 14:21:52,945 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 25 places, 18 transitions, 70 flow [2024-12-02 14:21:52,946 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 22 places, 18 transitions, 64 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-12-02 14:21:52,946 INFO L231 Difference]: Finished difference. Result has 22 places, 0 transitions, 0 flow [2024-12-02 14:21:52,946 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=29, PETRI_DIFFERENCE_MINUEND_FLOW=38, PETRI_DIFFERENCE_MINUEND_PLACES=20, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=18, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=18, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=22, PETRI_TRANSITIONS=0} [2024-12-02 14:21:52,947 INFO L279 CegarLoopForPetriNet]: 31 programPoint places, -9 predicate places. [2024-12-02 14:21:52,947 INFO L471 AbstractCegarLoop]: Abstraction has has 22 places, 0 transitions, 0 flow [2024-12-02 14:21:52,947 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 14:21:52,950 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (13 of 14 remaining) [2024-12-02 14:21:52,951 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (12 of 14 remaining) [2024-12-02 14:21:52,951 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (11 of 14 remaining) [2024-12-02 14:21:52,951 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (10 of 14 remaining) [2024-12-02 14:21:52,951 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK (9 of 14 remaining) [2024-12-02 14:21:52,951 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 14 remaining) [2024-12-02 14:21:52,951 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (7 of 14 remaining) [2024-12-02 14:21:52,951 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 14 remaining) [2024-12-02 14:21:52,952 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 14 remaining) [2024-12-02 14:21:52,952 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 14 remaining) [2024-12-02 14:21:52,952 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 14 remaining) [2024-12-02 14:21:52,952 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 14 remaining) [2024-12-02 14:21:52,952 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (1 of 14 remaining) [2024-12-02 14:21:52,952 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (0 of 14 remaining) [2024-12-02 14:21:52,952 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-12-02 14:21:52,953 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2024-12-02 14:21:52,959 INFO L241 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-12-02 14:21:52,959 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-12-02 14:21:52,966 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 02:21:52 BasicIcfg [2024-12-02 14:21:52,966 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-12-02 14:21:52,967 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-12-02 14:21:52,967 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-12-02 14:21:52,967 INFO L274 PluginConnector]: Witness Printer initialized [2024-12-02 14:21:52,968 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 02:21:51" (3/4) ... [2024-12-02 14:21:52,970 INFO L146 WitnessPrinter]: Generating witness for correct program [2024-12-02 14:21:52,974 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2024-12-02 14:21:52,979 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 35 nodes and edges [2024-12-02 14:21:52,979 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2024-12-02 14:21:52,979 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-12-02 14:21:52,979 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-12-02 14:21:53,065 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_300fedd7-6ac0-412c-ab88-ed209c6afbf3/bin/uautomizer-verify-84ZbGMXZE1/witness.graphml [2024-12-02 14:21:53,065 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_300fedd7-6ac0-412c-ab88-ed209c6afbf3/bin/uautomizer-verify-84ZbGMXZE1/witness.yml [2024-12-02 14:21:53,065 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-12-02 14:21:53,066 INFO L158 Benchmark]: Toolchain (without parser) took 3017.35ms. Allocated memory is still 142.6MB. Free memory was 115.6MB in the beginning and 68.6MB in the end (delta: 47.0MB). Peak memory consumption was 49.2MB. Max. memory is 16.1GB. [2024-12-02 14:21:53,066 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 117.4MB. Free memory is still 71.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 14:21:53,067 INFO L158 Benchmark]: CACSL2BoogieTranslator took 594.07ms. Allocated memory is still 142.6MB. Free memory was 115.4MB in the beginning and 88.0MB in the end (delta: 27.4MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-12-02 14:21:53,067 INFO L158 Benchmark]: Boogie Procedure Inliner took 46.37ms. Allocated memory is still 142.6MB. Free memory was 88.0MB in the beginning and 86.1MB in the end (delta: 1.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-02 14:21:53,067 INFO L158 Benchmark]: Boogie Preprocessor took 48.60ms. Allocated memory is still 142.6MB. Free memory was 86.1MB in the beginning and 84.2MB in the end (delta: 1.9MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 14:21:53,068 INFO L158 Benchmark]: RCFGBuilder took 514.35ms. Allocated memory is still 142.6MB. Free memory was 84.2MB in the beginning and 58.9MB in the end (delta: 25.3MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-12-02 14:21:53,068 INFO L158 Benchmark]: TraceAbstraction took 1709.53ms. Allocated memory is still 142.6MB. Free memory was 58.2MB in the beginning and 73.0MB in the end (delta: -14.8MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 14:21:53,068 INFO L158 Benchmark]: Witness Printer took 98.03ms. Allocated memory is still 142.6MB. Free memory was 73.0MB in the beginning and 68.6MB in the end (delta: 4.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-02 14:21:53,070 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 117.4MB. Free memory is still 71.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 594.07ms. Allocated memory is still 142.6MB. Free memory was 115.4MB in the beginning and 88.0MB in the end (delta: 27.4MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 46.37ms. Allocated memory is still 142.6MB. Free memory was 88.0MB in the beginning and 86.1MB in the end (delta: 1.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 48.60ms. Allocated memory is still 142.6MB. Free memory was 86.1MB in the beginning and 84.2MB in the end (delta: 1.9MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 514.35ms. Allocated memory is still 142.6MB. Free memory was 84.2MB in the beginning and 58.9MB in the end (delta: 25.3MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * TraceAbstraction took 1709.53ms. Allocated memory is still 142.6MB. Free memory was 58.2MB in the beginning and 73.0MB in the end (delta: -14.8MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 98.03ms. Allocated memory is still 142.6MB. Free memory was 73.0MB in the beginning and 68.6MB in the end (delta: 4.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - 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: 930]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 43 locations, 14 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 1.6s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 206 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 138 mSDsluCounter, 11 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2 mSDsCounter, 7 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 217 IncrementalHoareTripleChecker+Invalid, 224 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 7 mSolverCounterUnsat, 9 mSDtfsCounter, 217 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 13 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=60occurred in iteration=0, InterpolantAutomatonStates: 19, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 43 NumberOfCodeBlocks, 43 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 38 ConstructedInterpolants, 0 QuantifiedInterpolants, 246 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 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, ConComCheckerStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 9 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-12-02 14:21:53,090 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_300fedd7-6ac0-412c-ab88-ed209c6afbf3/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE