./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/pthread-wmm/safe015_power.opt.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 30e01a73 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05c5d3c5-c764-41c6-a13d-3e29ba74dcba/bin/uautomizer-verify-zZY32mL2XJ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05c5d3c5-c764-41c6-a13d-3e29ba74dcba/bin/uautomizer-verify-zZY32mL2XJ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05c5d3c5-c764-41c6-a13d-3e29ba74dcba/bin/uautomizer-verify-zZY32mL2XJ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05c5d3c5-c764-41c6-a13d-3e29ba74dcba/bin/uautomizer-verify-zZY32mL2XJ/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-wmm/safe015_power.opt.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05c5d3c5-c764-41c6-a13d-3e29ba74dcba/bin/uautomizer-verify-zZY32mL2XJ/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05c5d3c5-c764-41c6-a13d-3e29ba74dcba/bin/uautomizer-verify-zZY32mL2XJ --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 7ed03bf56a68b0ba240fc33c794b8871860875fa75320178f23c03b98fa54cab --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 22:33:17,742 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 22:33:17,881 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05c5d3c5-c764-41c6-a13d-3e29ba74dcba/bin/uautomizer-verify-zZY32mL2XJ/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-11-23 22:33:17,890 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 22:33:17,890 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 22:33:17,931 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 22:33:17,932 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 22:33:17,932 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 22:33:17,934 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-23 22:33:17,939 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-23 22:33:17,939 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 22:33:17,940 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 22:33:17,941 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-23 22:33:17,942 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-23 22:33:17,943 INFO L153 SettingsManager]: * Use SBE=true [2023-11-23 22:33:17,944 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 22:33:17,944 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 22:33:17,944 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-23 22:33:17,945 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 22:33:17,945 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-23 22:33:17,946 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 22:33:17,946 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 22:33:17,954 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 22:33:17,955 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 22:33:17,955 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-23 22:33:17,957 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-23 22:33:17,958 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-23 22:33:17,958 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 22:33:17,958 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 22:33:17,959 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 22:33:17,961 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-23 22:33:17,961 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 22:33:17,961 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 22:33:17,962 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 22:33:17,962 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 22:33:17,962 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 22:33:17,962 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 22:33:17,963 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-23 22:33:17,963 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 22:33:17,963 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 22:33:17,964 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-23 22:33:17,964 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 22:33:17,964 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-23 22:33:17,965 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 22:33:17,965 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_05c5d3c5-c764-41c6-a13d-3e29ba74dcba/bin/uautomizer-verify-zZY32mL2XJ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05c5d3c5-c764-41c6-a13d-3e29ba74dcba/bin/uautomizer-verify-zZY32mL2XJ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7ed03bf56a68b0ba240fc33c794b8871860875fa75320178f23c03b98fa54cab [2023-11-23 22:33:18,312 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 22:33:18,345 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 22:33:18,348 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 22:33:18,349 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 22:33:18,350 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 22:33:18,351 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05c5d3c5-c764-41c6-a13d-3e29ba74dcba/bin/uautomizer-verify-zZY32mL2XJ/../../sv-benchmarks/c/pthread-wmm/safe015_power.opt.i [2023-11-23 22:33:21,477 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 22:33:21,853 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 22:33:21,853 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05c5d3c5-c764-41c6-a13d-3e29ba74dcba/sv-benchmarks/c/pthread-wmm/safe015_power.opt.i [2023-11-23 22:33:21,875 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05c5d3c5-c764-41c6-a13d-3e29ba74dcba/bin/uautomizer-verify-zZY32mL2XJ/data/2c6ae9c46/efe373eb862a49d8a8feb86572a43282/FLAGeb62229ab [2023-11-23 22:33:21,889 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05c5d3c5-c764-41c6-a13d-3e29ba74dcba/bin/uautomizer-verify-zZY32mL2XJ/data/2c6ae9c46/efe373eb862a49d8a8feb86572a43282 [2023-11-23 22:33:21,892 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 22:33:21,894 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 22:33:21,895 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 22:33:21,895 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 22:33:21,903 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 22:33:21,904 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 10:33:21" (1/1) ... [2023-11-23 22:33:21,905 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@74767f27 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:33:21, skipping insertion in model container [2023-11-23 22:33:21,905 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 10:33:21" (1/1) ... [2023-11-23 22:33:21,974 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 22:33:22,423 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 22:33:22,441 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 22:33:22,589 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 22:33:22,641 WARN L675 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 22:33:22,642 WARN L675 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 22:33:22,650 INFO L206 MainTranslator]: Completed translation [2023-11-23 22:33:22,650 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:33:22 WrapperNode [2023-11-23 22:33:22,651 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 22:33:22,652 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 22:33:22,652 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 22:33:22,653 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 22:33:22,661 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:33:22" (1/1) ... [2023-11-23 22:33:22,693 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:33:22" (1/1) ... [2023-11-23 22:33:22,742 INFO L138 Inliner]: procedures = 176, calls = 87, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 171 [2023-11-23 22:33:22,744 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 22:33:22,745 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 22:33:22,745 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 22:33:22,745 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 22:33:22,757 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:33:22" (1/1) ... [2023-11-23 22:33:22,757 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:33:22" (1/1) ... [2023-11-23 22:33:22,775 INFO L184 PluginConnector]: Executing the observer HeapSplitter from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:33:22" (1/1) ... [2023-11-23 22:33:22,810 INFO L189 HeapSplitter]: Split 35 memory accesses to 5 slices as follows [2, 1, 1, 30, 1] [2023-11-23 22:33:22,819 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:33:22" (1/1) ... [2023-11-23 22:33:22,819 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:33:22" (1/1) ... [2023-11-23 22:33:22,833 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:33:22" (1/1) ... [2023-11-23 22:33:22,852 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:33:22" (1/1) ... [2023-11-23 22:33:22,856 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:33:22" (1/1) ... [2023-11-23 22:33:22,870 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:33:22" (1/1) ... [2023-11-23 22:33:22,882 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 22:33:22,884 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 22:33:22,884 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 22:33:22,885 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 22:33:22,886 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:33:22" (1/1) ... [2023-11-23 22:33:22,891 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 22:33:22,904 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05c5d3c5-c764-41c6-a13d-3e29ba74dcba/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:33:22,929 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05c5d3c5-c764-41c6-a13d-3e29ba74dcba/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 22:33:22,963 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05c5d3c5-c764-41c6-a13d-3e29ba74dcba/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 22:33:22,975 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2023-11-23 22:33:22,975 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2023-11-23 22:33:22,975 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2023-11-23 22:33:22,975 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2023-11-23 22:33:22,976 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2023-11-23 22:33:22,976 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2023-11-23 22:33:22,976 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2023-11-23 22:33:22,978 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2023-11-23 22:33:22,979 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2023-11-23 22:33:22,979 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2023-11-23 22:33:22,979 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-23 22:33:22,979 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 22:33:22,979 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-23 22:33:22,980 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-23 22:33:22,980 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2023-11-23 22:33:22,980 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2023-11-23 22:33:22,981 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2023-11-23 22:33:22,982 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2023-11-23 22:33:22,982 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2023-11-23 22:33:22,982 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2023-11-23 22:33:22,983 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-23 22:33:22,983 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-11-23 22:33:22,983 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2023-11-23 22:33:22,984 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2023-11-23 22:33:22,984 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2023-11-23 22:33:22,984 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-23 22:33:22,985 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 22:33:22,986 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 22:33:22,987 WARN L213 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-23 22:33:23,261 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 22:33:23,263 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 22:33:24,065 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 22:33:24,730 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 22:33:24,730 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-23 22:33:24,731 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 10:33:24 BoogieIcfgContainer [2023-11-23 22:33:24,731 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 22:33:24,734 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 22:33:24,734 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 22:33:24,738 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 22:33:24,738 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 10:33:21" (1/3) ... [2023-11-23 22:33:24,739 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@525bb902 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 10:33:24, skipping insertion in model container [2023-11-23 22:33:24,740 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:33:22" (2/3) ... [2023-11-23 22:33:24,742 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@525bb902 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 10:33:24, skipping insertion in model container [2023-11-23 22:33:24,742 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 10:33:24" (3/3) ... [2023-11-23 22:33:24,744 INFO L112 eAbstractionObserver]: Analyzing ICFG safe015_power.opt.i [2023-11-23 22:33:24,757 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-23 22:33:24,770 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 22:33:24,770 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2023-11-23 22:33:24,771 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-23 22:33:24,867 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-23 22:33:24,917 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 50 places, 40 transitions, 92 flow [2023-11-23 22:33:24,966 INFO L124 PetriNetUnfolderBase]: 0/37 cut-off events. [2023-11-23 22:33:24,966 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-23 22:33:24,971 INFO L83 FinitePrefix]: Finished finitePrefix Result has 47 conditions, 37 events. 0/37 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 93 event pairs, 0 based on Foata normal form. 0/31 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2023-11-23 22:33:24,971 INFO L82 GeneralOperation]: Start removeDead. Operand has 50 places, 40 transitions, 92 flow [2023-11-23 22:33:24,977 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 47 places, 37 transitions, 83 flow [2023-11-23 22:33:24,998 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 22:33:25,007 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=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, 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;@401c5f35, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 22:33:25,007 INFO L358 AbstractCegarLoop]: Starting to check reachability of 15 error locations. [2023-11-23 22:33:25,020 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-23 22:33:25,020 INFO L124 PetriNetUnfolderBase]: 0/16 cut-off events. [2023-11-23 22:33:25,020 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-23 22:33:25,021 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-23 22:33:25,021 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:33:25,022 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-11-23 22:33:25,028 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:33:25,029 INFO L85 PathProgramCache]: Analyzing trace with hash -969869340, now seen corresponding path program 1 times [2023-11-23 22:33:25,040 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:33:25,042 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [176766886] [2023-11-23 22:33:25,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:33:25,043 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:33:25,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:33:25,444 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 22:33:25,445 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:33:25,445 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [176766886] [2023-11-23 22:33:25,446 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [176766886] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:33:25,446 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:33:25,447 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-23 22:33:25,448 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [241859323] [2023-11-23 22:33:25,449 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:33:25,459 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 22:33:25,469 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:33:25,505 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 22:33:25,506 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 22:33:25,514 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 40 [2023-11-23 22:33:25,517 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 37 transitions, 83 flow. Second operand has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 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) [2023-11-23 22:33:25,517 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-23 22:33:25,517 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 40 [2023-11-23 22:33:25,518 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-23 22:33:27,340 INFO L124 PetriNetUnfolderBase]: 3311/4856 cut-off events. [2023-11-23 22:33:27,340 INFO L125 PetriNetUnfolderBase]: For 30/30 co-relation queries the response was YES. [2023-11-23 22:33:27,357 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9759 conditions, 4856 events. 3311/4856 cut-off events. For 30/30 co-relation queries the response was YES. Maximal size of possible extension queue 303. Compared 27794 event pairs, 1115 based on Foata normal form. 0/3958 useless extension candidates. Maximal degree in co-relation 9748. Up to 4385 conditions per place. [2023-11-23 22:33:27,439 INFO L140 encePairwiseOnDemand]: 30/40 looper letters, 43 selfloop transitions, 4 changer transitions 0/55 dead transitions. [2023-11-23 22:33:27,440 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 55 transitions, 219 flow [2023-11-23 22:33:27,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 22:33:27,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-23 22:33:27,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 86 transitions. [2023-11-23 22:33:27,456 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7166666666666667 [2023-11-23 22:33:27,457 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 86 transitions. [2023-11-23 22:33:27,457 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 86 transitions. [2023-11-23 22:33:27,459 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-23 22:33:27,462 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 86 transitions. [2023-11-23 22:33:27,466 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 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) [2023-11-23 22:33:27,470 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 40.0) internal successors, (160), 4 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) [2023-11-23 22:33:27,471 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 40.0) internal successors, (160), 4 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) [2023-11-23 22:33:27,473 INFO L175 Difference]: Start difference. First operand has 47 places, 37 transitions, 83 flow. Second operand 3 states and 86 transitions. [2023-11-23 22:33:27,475 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 49 places, 55 transitions, 219 flow [2023-11-23 22:33:27,479 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 55 transitions, 214 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-11-23 22:33:27,486 INFO L231 Difference]: Finished difference. Result has 47 places, 40 transitions, 116 flow [2023-11-23 22:33:27,489 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=40, PETRI_DIFFERENCE_MINUEND_FLOW=80, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=116, PETRI_PLACES=47, PETRI_TRANSITIONS=40} [2023-11-23 22:33:27,494 INFO L281 CegarLoopForPetriNet]: 47 programPoint places, 0 predicate places. [2023-11-23 22:33:27,494 INFO L495 AbstractCegarLoop]: Abstraction has has 47 places, 40 transitions, 116 flow [2023-11-23 22:33:27,494 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 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) [2023-11-23 22:33:27,495 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-23 22:33:27,495 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:33:27,495 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-23 22:33:27,496 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-11-23 22:33:27,496 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:33:27,496 INFO L85 PathProgramCache]: Analyzing trace with hash -1172057075, now seen corresponding path program 1 times [2023-11-23 22:33:27,497 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:33:27,497 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [204158405] [2023-11-23 22:33:27,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:33:27,498 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:33:27,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:33:27,736 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 22:33:27,736 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:33:27,737 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [204158405] [2023-11-23 22:33:27,737 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [204158405] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:33:27,737 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:33:27,738 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 22:33:27,738 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1381753552] [2023-11-23 22:33:27,738 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:33:27,739 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-23 22:33:27,740 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:33:27,740 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-23 22:33:27,741 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-23 22:33:27,743 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 40 [2023-11-23 22:33:27,744 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 40 transitions, 116 flow. Second operand has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 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) [2023-11-23 22:33:27,744 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-23 22:33:27,744 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 40 [2023-11-23 22:33:27,745 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-23 22:33:28,987 INFO L124 PetriNetUnfolderBase]: 2411/3552 cut-off events. [2023-11-23 22:33:28,988 INFO L125 PetriNetUnfolderBase]: For 292/292 co-relation queries the response was YES. [2023-11-23 22:33:28,996 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8219 conditions, 3552 events. 2411/3552 cut-off events. For 292/292 co-relation queries the response was YES. Maximal size of possible extension queue 200. Compared 19604 event pairs, 733 based on Foata normal form. 0/3166 useless extension candidates. Maximal degree in co-relation 8208. Up to 3080 conditions per place. [2023-11-23 22:33:29,022 INFO L140 encePairwiseOnDemand]: 33/40 looper letters, 40 selfloop transitions, 4 changer transitions 0/52 dead transitions. [2023-11-23 22:33:29,023 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 52 transitions, 226 flow [2023-11-23 22:33:29,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-23 22:33:29,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-23 22:33:29,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 91 transitions. [2023-11-23 22:33:29,025 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.56875 [2023-11-23 22:33:29,026 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 91 transitions. [2023-11-23 22:33:29,026 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 91 transitions. [2023-11-23 22:33:29,026 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-23 22:33:29,027 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 91 transitions. [2023-11-23 22:33:29,028 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 22.75) internal successors, (91), 4 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:33:29,029 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 40.0) internal successors, (200), 5 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) [2023-11-23 22:33:29,030 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 40.0) internal successors, (200), 5 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) [2023-11-23 22:33:29,030 INFO L175 Difference]: Start difference. First operand has 47 places, 40 transitions, 116 flow. Second operand 4 states and 91 transitions. [2023-11-23 22:33:29,030 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 52 transitions, 226 flow [2023-11-23 22:33:29,032 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 52 transitions, 222 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-23 22:33:29,033 INFO L231 Difference]: Finished difference. Result has 46 places, 37 transitions, 108 flow [2023-11-23 22:33:29,034 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=40, PETRI_DIFFERENCE_MINUEND_FLOW=100, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=108, PETRI_PLACES=46, PETRI_TRANSITIONS=37} [2023-11-23 22:33:29,035 INFO L281 CegarLoopForPetriNet]: 47 programPoint places, -1 predicate places. [2023-11-23 22:33:29,035 INFO L495 AbstractCegarLoop]: Abstraction has has 46 places, 37 transitions, 108 flow [2023-11-23 22:33:29,035 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 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) [2023-11-23 22:33:29,036 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-23 22:33:29,036 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:33:29,036 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-23 22:33:29,036 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-11-23 22:33:29,037 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:33:29,037 INFO L85 PathProgramCache]: Analyzing trace with hash -794913288, now seen corresponding path program 1 times [2023-11-23 22:33:29,037 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:33:29,038 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1470710200] [2023-11-23 22:33:29,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:33:29,038 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:33:29,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:33:29,178 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 22:33:29,179 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:33:29,179 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1470710200] [2023-11-23 22:33:29,180 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1470710200] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:33:29,180 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:33:29,180 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 22:33:29,180 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1020104771] [2023-11-23 22:33:29,181 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:33:29,181 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-23 22:33:29,182 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:33:29,182 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-23 22:33:29,183 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-23 22:33:29,187 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 40 [2023-11-23 22:33:29,187 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 37 transitions, 108 flow. Second operand has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 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) [2023-11-23 22:33:29,187 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-23 22:33:29,188 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 40 [2023-11-23 22:33:29,188 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-23 22:33:30,107 INFO L124 PetriNetUnfolderBase]: 1811/2692 cut-off events. [2023-11-23 22:33:30,107 INFO L125 PetriNetUnfolderBase]: For 606/606 co-relation queries the response was YES. [2023-11-23 22:33:30,116 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6124 conditions, 2692 events. 1811/2692 cut-off events. For 606/606 co-relation queries the response was YES. Maximal size of possible extension queue 147. Compared 14425 event pairs, 335 based on Foata normal form. 0/2602 useless extension candidates. Maximal degree in co-relation 6112. Up to 1169 conditions per place. [2023-11-23 22:33:30,139 INFO L140 encePairwiseOnDemand]: 33/40 looper letters, 53 selfloop transitions, 7 changer transitions 3/71 dead transitions. [2023-11-23 22:33:30,139 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 71 transitions, 314 flow [2023-11-23 22:33:30,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-23 22:33:30,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-23 22:33:30,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 110 transitions. [2023-11-23 22:33:30,142 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6875 [2023-11-23 22:33:30,143 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 110 transitions. [2023-11-23 22:33:30,143 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 110 transitions. [2023-11-23 22:33:30,144 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-23 22:33:30,144 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 110 transitions. [2023-11-23 22:33:30,145 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 27.5) internal successors, (110), 4 states have internal predecessors, (110), 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) [2023-11-23 22:33:30,147 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 40.0) internal successors, (200), 5 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) [2023-11-23 22:33:30,147 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 40.0) internal successors, (200), 5 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) [2023-11-23 22:33:30,147 INFO L175 Difference]: Start difference. First operand has 46 places, 37 transitions, 108 flow. Second operand 4 states and 110 transitions. [2023-11-23 22:33:30,148 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 49 places, 71 transitions, 314 flow [2023-11-23 22:33:30,150 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 71 transitions, 309 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-23 22:33:30,152 INFO L231 Difference]: Finished difference. Result has 48 places, 37 transitions, 129 flow [2023-11-23 22:33:30,152 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=40, PETRI_DIFFERENCE_MINUEND_FLOW=103, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=129, PETRI_PLACES=48, PETRI_TRANSITIONS=37} [2023-11-23 22:33:30,153 INFO L281 CegarLoopForPetriNet]: 47 programPoint places, 1 predicate places. [2023-11-23 22:33:30,154 INFO L495 AbstractCegarLoop]: Abstraction has has 48 places, 37 transitions, 129 flow [2023-11-23 22:33:30,154 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 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) [2023-11-23 22:33:30,154 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-23 22:33:30,155 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:33:30,155 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-23 22:33:30,155 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-11-23 22:33:30,156 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:33:30,156 INFO L85 PathProgramCache]: Analyzing trace with hash -1020226161, now seen corresponding path program 1 times [2023-11-23 22:33:30,156 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:33:30,157 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1555283586] [2023-11-23 22:33:30,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:33:30,157 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:33:30,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:33:30,403 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 22:33:30,403 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:33:30,404 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1555283586] [2023-11-23 22:33:30,404 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1555283586] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:33:30,404 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:33:30,405 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 22:33:30,405 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1801255084] [2023-11-23 22:33:30,405 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:33:30,406 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-23 22:33:30,407 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:33:30,408 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-23 22:33:30,408 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-11-23 22:33:30,415 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 40 [2023-11-23 22:33:30,415 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 37 transitions, 129 flow. Second operand has 5 states, 5 states have (on average 14.0) internal successors, (70), 5 states have internal predecessors, (70), 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) [2023-11-23 22:33:30,416 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-23 22:33:30,416 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 40 [2023-11-23 22:33:30,416 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-23 22:33:31,338 INFO L124 PetriNetUnfolderBase]: 1543/2304 cut-off events. [2023-11-23 22:33:31,339 INFO L125 PetriNetUnfolderBase]: For 1386/1386 co-relation queries the response was YES. [2023-11-23 22:33:31,347 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5823 conditions, 2304 events. 1543/2304 cut-off events. For 1386/1386 co-relation queries the response was YES. Maximal size of possible extension queue 147. Compared 12610 event pairs, 275 based on Foata normal form. 72/2358 useless extension candidates. Maximal degree in co-relation 5810. Up to 1052 conditions per place. [2023-11-23 22:33:31,351 INFO L140 encePairwiseOnDemand]: 33/40 looper letters, 0 selfloop transitions, 0 changer transitions 65/65 dead transitions. [2023-11-23 22:33:31,352 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 65 transitions, 293 flow [2023-11-23 22:33:31,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-23 22:33:31,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-11-23 22:33:31,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 115 transitions. [2023-11-23 22:33:31,354 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.575 [2023-11-23 22:33:31,355 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 115 transitions. [2023-11-23 22:33:31,355 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 115 transitions. [2023-11-23 22:33:31,355 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-23 22:33:31,356 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 115 transitions. [2023-11-23 22:33:31,357 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 23.0) internal successors, (115), 5 states have internal predecessors, (115), 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) [2023-11-23 22:33:31,358 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 40.0) internal successors, (240), 6 states have internal predecessors, (240), 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) [2023-11-23 22:33:31,359 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 40.0) internal successors, (240), 6 states have internal predecessors, (240), 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) [2023-11-23 22:33:31,359 INFO L175 Difference]: Start difference. First operand has 48 places, 37 transitions, 129 flow. Second operand 5 states and 115 transitions. [2023-11-23 22:33:31,359 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 49 places, 65 transitions, 293 flow [2023-11-23 22:33:31,364 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 65 transitions, 269 flow, removed 3 selfloop flow, removed 4 redundant places. [2023-11-23 22:33:31,365 INFO L231 Difference]: Finished difference. Result has 45 places, 0 transitions, 0 flow [2023-11-23 22:33:31,365 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=40, PETRI_DIFFERENCE_MINUEND_FLOW=87, PETRI_DIFFERENCE_MINUEND_PLACES=41, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=34, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=0, PETRI_PLACES=45, PETRI_TRANSITIONS=0} [2023-11-23 22:33:31,366 INFO L281 CegarLoopForPetriNet]: 47 programPoint places, -2 predicate places. [2023-11-23 22:33:31,367 INFO L495 AbstractCegarLoop]: Abstraction has has 45 places, 0 transitions, 0 flow [2023-11-23 22:33:31,367 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.0) internal successors, (70), 5 states have internal predecessors, (70), 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) [2023-11-23 22:33:31,370 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 15 remaining) [2023-11-23 22:33:31,371 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 15 remaining) [2023-11-23 22:33:31,371 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 15 remaining) [2023-11-23 22:33:31,372 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 15 remaining) [2023-11-23 22:33:31,372 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 15 remaining) [2023-11-23 22:33:31,372 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 15 remaining) [2023-11-23 22:33:31,373 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 15 remaining) [2023-11-23 22:33:31,373 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (7 of 15 remaining) [2023-11-23 22:33:31,373 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 15 remaining) [2023-11-23 22:33:31,374 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 15 remaining) [2023-11-23 22:33:31,374 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 15 remaining) [2023-11-23 22:33:31,374 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 15 remaining) [2023-11-23 22:33:31,375 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 15 remaining) [2023-11-23 22:33:31,375 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 15 remaining) [2023-11-23 22:33:31,375 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 15 remaining) [2023-11-23 22:33:31,375 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-23 22:33:31,376 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2023-11-23 22:33:31,383 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-23 22:33:31,383 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-23 22:33:31,390 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 10:33:31 BasicIcfg [2023-11-23 22:33:31,390 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-23 22:33:31,391 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-23 22:33:31,391 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-23 22:33:31,392 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-23 22:33:31,392 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 10:33:24" (3/4) ... [2023-11-23 22:33:31,394 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-23 22:33:31,398 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2023-11-23 22:33:31,398 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2023-11-23 22:33:31,398 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2023-11-23 22:33:31,405 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 72 nodes and edges [2023-11-23 22:33:31,406 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2023-11-23 22:33:31,406 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-11-23 22:33:31,406 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-23 22:33:31,510 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05c5d3c5-c764-41c6-a13d-3e29ba74dcba/bin/uautomizer-verify-zZY32mL2XJ/witness.graphml [2023-11-23 22:33:31,510 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05c5d3c5-c764-41c6-a13d-3e29ba74dcba/bin/uautomizer-verify-zZY32mL2XJ/witness.yml [2023-11-23 22:33:31,511 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-23 22:33:31,512 INFO L158 Benchmark]: Toolchain (without parser) took 9618.04ms. Allocated memory was 140.5MB in the beginning and 453.0MB in the end (delta: 312.5MB). Free memory was 93.8MB in the beginning and 192.3MB in the end (delta: -98.5MB). Peak memory consumption was 216.4MB. Max. memory is 16.1GB. [2023-11-23 22:33:31,512 INFO L158 Benchmark]: CDTParser took 1.22ms. Allocated memory is still 140.5MB. Free memory is still 106.1MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 22:33:31,513 INFO L158 Benchmark]: CACSL2BoogieTranslator took 756.22ms. Allocated memory is still 140.5MB. Free memory was 93.4MB in the beginning and 66.9MB in the end (delta: 26.4MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2023-11-23 22:33:31,513 INFO L158 Benchmark]: Boogie Procedure Inliner took 91.89ms. Allocated memory is still 140.5MB. Free memory was 66.9MB in the beginning and 63.9MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-23 22:33:31,514 INFO L158 Benchmark]: Boogie Preprocessor took 138.25ms. Allocated memory is still 140.5MB. Free memory was 63.9MB in the beginning and 58.6MB in the end (delta: 5.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-11-23 22:33:31,515 INFO L158 Benchmark]: RCFGBuilder took 1847.89ms. Allocated memory was 140.5MB in the beginning and 180.4MB in the end (delta: 39.8MB). Free memory was 58.6MB in the beginning and 109.4MB in the end (delta: -50.8MB). Peak memory consumption was 29.8MB. Max. memory is 16.1GB. [2023-11-23 22:33:31,515 INFO L158 Benchmark]: TraceAbstraction took 6656.86ms. Allocated memory was 180.4MB in the beginning and 453.0MB in the end (delta: 272.6MB). Free memory was 108.4MB in the beginning and 197.6MB in the end (delta: -89.2MB). Peak memory consumption was 255.8MB. Max. memory is 16.1GB. [2023-11-23 22:33:31,516 INFO L158 Benchmark]: Witness Printer took 119.81ms. Allocated memory is still 453.0MB. Free memory was 197.6MB in the beginning and 192.3MB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-11-23 22:33:31,518 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.22ms. Allocated memory is still 140.5MB. Free memory is still 106.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 756.22ms. Allocated memory is still 140.5MB. Free memory was 93.4MB in the beginning and 66.9MB in the end (delta: 26.4MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 91.89ms. Allocated memory is still 140.5MB. Free memory was 66.9MB in the beginning and 63.9MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 138.25ms. Allocated memory is still 140.5MB. Free memory was 63.9MB in the beginning and 58.6MB in the end (delta: 5.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * RCFGBuilder took 1847.89ms. Allocated memory was 140.5MB in the beginning and 180.4MB in the end (delta: 39.8MB). Free memory was 58.6MB in the beginning and 109.4MB in the end (delta: -50.8MB). Peak memory consumption was 29.8MB. Max. memory is 16.1GB. * TraceAbstraction took 6656.86ms. Allocated memory was 180.4MB in the beginning and 453.0MB in the end (delta: 272.6MB). Free memory was 108.4MB in the beginning and 197.6MB in the end (delta: -89.2MB). Peak memory consumption was 255.8MB. Max. memory is 16.1GB. * Witness Printer took 119.81ms. Allocated memory is still 453.0MB. Free memory was 197.6MB in the beginning and 192.3MB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 782]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 782]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 802]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 802]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 838]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 838]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 72 locations, 15 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: 6.5s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 5.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 131 SdHoareTripleChecker+Valid, 0.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 123 mSDsluCounter, 1 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 22 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 293 IncrementalHoareTripleChecker+Invalid, 315 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 22 mSolverCounterUnsat, 1 mSDtfsCounter, 293 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 8 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=129occurred in iteration=3, InterpolantAutomatonStates: 16, 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, 0.7s InterpolantComputationTime, 60 NumberOfCodeBlocks, 60 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 56 ConstructedInterpolants, 0 QuantifiedInterpolants, 168 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 6 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-11-23 22:33:31,559 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05c5d3c5-c764-41c6-a13d-3e29ba74dcba/bin/uautomizer-verify-zZY32mL2XJ/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