./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/pthread-wmm/rfi004.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 9bd2c7ff 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_1e4376fd-4d59-485f-aece-313457816205/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e4376fd-4d59-485f-aece-313457816205/bin/uautomizer-verify-uCwYo4JHxu/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e4376fd-4d59-485f-aece-313457816205/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e4376fd-4d59-485f-aece-313457816205/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-wmm/rfi004.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e4376fd-4d59-485f-aece-313457816205/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e4376fd-4d59-485f-aece-313457816205/bin/uautomizer-verify-uCwYo4JHxu --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 131a5c0bb00c7f6e11a814871ba4a0d65133507ca6f79e4b87c2742dbe2c5590 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 08:00:03,670 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 08:00:03,756 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e4376fd-4d59-485f-aece-313457816205/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-11-19 08:00:03,762 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 08:00:03,763 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 08:00:03,787 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 08:00:03,788 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 08:00:03,789 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 08:00:03,790 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 08:00:03,790 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 08:00:03,791 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 08:00:03,792 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 08:00:03,793 INFO L153 SettingsManager]: * Use SBE=true [2023-11-19 08:00:03,794 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 08:00:03,794 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 08:00:03,795 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 08:00:03,796 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 08:00:03,797 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 08:00:03,797 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 08:00:03,798 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 08:00:03,799 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 08:00:03,800 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 08:00:03,800 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-19 08:00:03,801 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 08:00:03,801 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 08:00:03,802 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 08:00:03,802 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 08:00:03,803 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 08:00:03,804 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 08:00:03,804 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 08:00:03,804 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 08:00:03,805 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 08:00:03,805 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 08:00:03,806 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 08:00:03,806 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-19 08:00:03,807 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 08:00:03,807 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-19 08:00:03,808 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 08:00:03,808 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-19 08:00:03,809 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 08:00:03,809 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-19 08:00:03,810 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_1e4376fd-4d59-485f-aece-313457816205/bin/uautomizer-verify-uCwYo4JHxu/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e4376fd-4d59-485f-aece-313457816205/bin/uautomizer-verify-uCwYo4JHxu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 131a5c0bb00c7f6e11a814871ba4a0d65133507ca6f79e4b87c2742dbe2c5590 [2023-11-19 08:00:04,047 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 08:00:04,076 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 08:00:04,079 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 08:00:04,080 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 08:00:04,081 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 08:00:04,082 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e4376fd-4d59-485f-aece-313457816205/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/pthread-wmm/rfi004.i [2023-11-19 08:00:07,105 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 08:00:07,485 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 08:00:07,486 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e4376fd-4d59-485f-aece-313457816205/sv-benchmarks/c/pthread-wmm/rfi004.i [2023-11-19 08:00:07,504 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e4376fd-4d59-485f-aece-313457816205/bin/uautomizer-verify-uCwYo4JHxu/data/80278f98d/24bd5ffd5e814db1a8addd760f40bd83/FLAGfae512cf1 [2023-11-19 08:00:07,524 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e4376fd-4d59-485f-aece-313457816205/bin/uautomizer-verify-uCwYo4JHxu/data/80278f98d/24bd5ffd5e814db1a8addd760f40bd83 [2023-11-19 08:00:07,527 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 08:00:07,528 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 08:00:07,530 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 08:00:07,530 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 08:00:07,535 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 08:00:07,539 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:00:07" (1/1) ... [2023-11-19 08:00:07,540 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@510f9771 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:00:07, skipping insertion in model container [2023-11-19 08:00:07,540 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:00:07" (1/1) ... [2023-11-19 08:00:07,613 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 08:00:08,024 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 08:00:08,035 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 08:00:08,106 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 08:00:08,143 WARN L675 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 08:00:08,143 WARN L675 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 08:00:08,151 INFO L206 MainTranslator]: Completed translation [2023-11-19 08:00:08,152 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:00:08 WrapperNode [2023-11-19 08:00:08,152 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 08:00:08,153 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 08:00:08,154 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 08:00:08,154 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 08:00:08,162 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:00:08" (1/1) ... [2023-11-19 08:00:08,198 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:00:08" (1/1) ... [2023-11-19 08:00:08,234 INFO L138 Inliner]: procedures = 175, calls = 48, calls flagged for inlining = 6, calls inlined = 7, statements flattened = 128 [2023-11-19 08:00:08,235 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 08:00:08,236 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 08:00:08,236 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 08:00:08,236 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 08:00:08,247 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:00:08" (1/1) ... [2023-11-19 08:00:08,247 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:00:08" (1/1) ... [2023-11-19 08:00:08,261 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:00:08" (1/1) ... [2023-11-19 08:00:08,262 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:00:08" (1/1) ... [2023-11-19 08:00:08,271 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:00:08" (1/1) ... [2023-11-19 08:00:08,273 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:00:08" (1/1) ... [2023-11-19 08:00:08,284 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:00:08" (1/1) ... [2023-11-19 08:00:08,286 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:00:08" (1/1) ... [2023-11-19 08:00:08,290 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 08:00:08,292 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 08:00:08,292 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 08:00:08,292 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 08:00:08,293 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:00:08" (1/1) ... [2023-11-19 08:00:08,304 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 08:00:08,323 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e4376fd-4d59-485f-aece-313457816205/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 08:00:08,342 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e4376fd-4d59-485f-aece-313457816205/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 08:00:08,372 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e4376fd-4d59-485f-aece-313457816205/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 08:00:08,384 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-19 08:00:08,384 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-19 08:00:08,385 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 08:00:08,385 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 08:00:08,385 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 08:00:08,385 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2023-11-19 08:00:08,386 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2023-11-19 08:00:08,386 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2023-11-19 08:00:08,386 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2023-11-19 08:00:08,386 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 08:00:08,386 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-19 08:00:08,387 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 08:00:08,389 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 08:00:08,391 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-19 08:00:08,535 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 08:00:08,537 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 08:00:08,857 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 08:00:09,115 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 08:00:09,115 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-19 08:00:09,119 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:00:09 BoogieIcfgContainer [2023-11-19 08:00:09,119 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 08:00:09,122 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 08:00:09,122 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 08:00:09,125 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 08:00:09,126 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 08:00:07" (1/3) ... [2023-11-19 08:00:09,127 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@44a87989 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 08:00:09, skipping insertion in model container [2023-11-19 08:00:09,127 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:00:08" (2/3) ... [2023-11-19 08:00:09,127 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@44a87989 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 08:00:09, skipping insertion in model container [2023-11-19 08:00:09,127 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:00:09" (3/3) ... [2023-11-19 08:00:09,129 INFO L112 eAbstractionObserver]: Analyzing ICFG rfi004.i [2023-11-19 08:00:09,138 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-19 08:00:09,149 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 08:00:09,149 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2023-11-19 08:00:09,149 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-19 08:00:09,198 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-19 08:00:09,238 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 107 places, 103 transitions, 214 flow [2023-11-19 08:00:09,284 INFO L124 PetriNetUnfolderBase]: 3/101 cut-off events. [2023-11-19 08:00:09,284 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-19 08:00:09,291 INFO L83 FinitePrefix]: Finished finitePrefix Result has 108 conditions, 101 events. 3/101 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 69 event pairs, 0 based on Foata normal form. 0/94 useless extension candidates. Maximal degree in co-relation 65. Up to 2 conditions per place. [2023-11-19 08:00:09,291 INFO L82 GeneralOperation]: Start removeDead. Operand has 107 places, 103 transitions, 214 flow [2023-11-19 08:00:09,296 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 105 places, 101 transitions, 208 flow [2023-11-19 08:00:09,300 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-11-19 08:00:09,311 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 105 places, 101 transitions, 208 flow [2023-11-19 08:00:09,314 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 105 places, 101 transitions, 208 flow [2023-11-19 08:00:09,315 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 105 places, 101 transitions, 208 flow [2023-11-19 08:00:09,348 INFO L124 PetriNetUnfolderBase]: 3/101 cut-off events. [2023-11-19 08:00:09,348 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-19 08:00:09,349 INFO L83 FinitePrefix]: Finished finitePrefix Result has 108 conditions, 101 events. 3/101 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 69 event pairs, 0 based on Foata normal form. 0/94 useless extension candidates. Maximal degree in co-relation 65. Up to 2 conditions per place. [2023-11-19 08:00:09,351 INFO L119 LiptonReduction]: Number of co-enabled transitions 1830 [2023-11-19 08:00:13,090 INFO L134 LiptonReduction]: Checked pairs total: 4388 [2023-11-19 08:00:13,091 INFO L136 LiptonReduction]: Total number of compositions: 92 [2023-11-19 08:00:13,108 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 08:00:13,115 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;@bf80978, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-19 08:00:13,116 INFO L358 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2023-11-19 08:00:13,120 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-19 08:00:13,120 INFO L124 PetriNetUnfolderBase]: 0/6 cut-off events. [2023-11-19 08:00:13,120 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-19 08:00:13,120 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 08:00:13,121 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-11-19 08:00:13,122 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2023-11-19 08:00:13,127 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:00:13,127 INFO L85 PathProgramCache]: Analyzing trace with hash 458087962, now seen corresponding path program 1 times [2023-11-19 08:00:13,137 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:00:13,137 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [37350277] [2023-11-19 08:00:13,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:00:13,138 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:00:13,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:00:13,498 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 08:00:13,498 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:00:13,499 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [37350277] [2023-11-19 08:00:13,500 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [37350277] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:00:13,500 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:00:13,500 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-19 08:00:13,503 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [608501768] [2023-11-19 08:00:13,504 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:00:13,514 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 08:00:13,521 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:00:13,544 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 08:00:13,545 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 08:00:13,556 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 86 out of 195 [2023-11-19 08:00:13,562 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 28 places, 22 transitions, 50 flow. Second operand has 3 states, 3 states have (on average 87.66666666666667) internal successors, (263), 3 states have internal predecessors, (263), 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) [2023-11-19 08:00:13,562 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 08:00:13,562 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 86 of 195 [2023-11-19 08:00:13,563 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 08:00:13,756 INFO L124 PetriNetUnfolderBase]: 97/208 cut-off events. [2023-11-19 08:00:13,756 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-11-19 08:00:13,759 INFO L83 FinitePrefix]: Finished finitePrefix Result has 424 conditions, 208 events. 97/208 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 718 event pairs, 47 based on Foata normal form. 24/196 useless extension candidates. Maximal degree in co-relation 414. Up to 145 conditions per place. [2023-11-19 08:00:13,763 INFO L140 encePairwiseOnDemand]: 186/195 looper letters, 25 selfloop transitions, 3 changer transitions 2/31 dead transitions. [2023-11-19 08:00:13,764 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 30 places, 31 transitions, 131 flow [2023-11-19 08:00:13,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 08:00:13,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-19 08:00:13,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 295 transitions. [2023-11-19 08:00:13,792 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5042735042735043 [2023-11-19 08:00:13,793 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 295 transitions. [2023-11-19 08:00:13,794 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 295 transitions. [2023-11-19 08:00:13,797 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 08:00:13,799 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 295 transitions. [2023-11-19 08:00:13,808 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 98.33333333333333) internal successors, (295), 3 states have internal predecessors, (295), 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) [2023-11-19 08:00:13,813 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 195.0) internal successors, (780), 4 states have internal predecessors, (780), 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) [2023-11-19 08:00:13,814 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 195.0) internal successors, (780), 4 states have internal predecessors, (780), 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) [2023-11-19 08:00:13,816 INFO L175 Difference]: Start difference. First operand has 28 places, 22 transitions, 50 flow. Second operand 3 states and 295 transitions. [2023-11-19 08:00:13,817 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 30 places, 31 transitions, 131 flow [2023-11-19 08:00:13,819 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 28 places, 31 transitions, 128 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-19 08:00:13,821 INFO L231 Difference]: Finished difference. Result has 29 places, 21 transitions, 65 flow [2023-11-19 08:00:13,823 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=195, PETRI_DIFFERENCE_MINUEND_FLOW=46, PETRI_DIFFERENCE_MINUEND_PLACES=26, 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=3, PETRI_FLOW=65, PETRI_PLACES=29, PETRI_TRANSITIONS=21} [2023-11-19 08:00:13,828 INFO L281 CegarLoopForPetriNet]: 28 programPoint places, 1 predicate places. [2023-11-19 08:00:13,828 INFO L495 AbstractCegarLoop]: Abstraction has has 29 places, 21 transitions, 65 flow [2023-11-19 08:00:13,828 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 87.66666666666667) internal successors, (263), 3 states have internal predecessors, (263), 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) [2023-11-19 08:00:13,829 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 08:00:13,829 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:00:13,829 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-19 08:00:13,829 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2023-11-19 08:00:13,832 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:00:13,832 INFO L85 PathProgramCache]: Analyzing trace with hash -998416628, now seen corresponding path program 1 times [2023-11-19 08:00:13,832 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:00:13,833 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [752140938] [2023-11-19 08:00:13,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:00:13,833 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:00:13,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:00:14,096 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 08:00:14,097 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:00:14,097 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [752140938] [2023-11-19 08:00:14,097 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [752140938] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:00:14,097 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:00:14,098 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 08:00:14,098 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [376313347] [2023-11-19 08:00:14,098 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:00:14,099 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 08:00:14,099 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:00:14,100 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 08:00:14,101 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-19 08:00:14,112 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 86 out of 195 [2023-11-19 08:00:14,112 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 29 places, 21 transitions, 65 flow. Second operand has 4 states, 4 states have (on average 88.75) internal successors, (355), 4 states have internal predecessors, (355), 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) [2023-11-19 08:00:14,113 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 08:00:14,113 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 86 of 195 [2023-11-19 08:00:14,113 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 08:00:14,218 INFO L124 PetriNetUnfolderBase]: 76/169 cut-off events. [2023-11-19 08:00:14,218 INFO L125 PetriNetUnfolderBase]: For 13/13 co-relation queries the response was YES. [2023-11-19 08:00:14,220 INFO L83 FinitePrefix]: Finished finitePrefix Result has 400 conditions, 169 events. 76/169 cut-off events. For 13/13 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 550 event pairs, 35 based on Foata normal form. 0/169 useless extension candidates. Maximal degree in co-relation 389. Up to 105 conditions per place. [2023-11-19 08:00:14,221 INFO L140 encePairwiseOnDemand]: 190/195 looper letters, 23 selfloop transitions, 3 changer transitions 0/27 dead transitions. [2023-11-19 08:00:14,221 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 30 places, 27 transitions, 127 flow [2023-11-19 08:00:14,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 08:00:14,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-19 08:00:14,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 372 transitions. [2023-11-19 08:00:14,225 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.47692307692307695 [2023-11-19 08:00:14,225 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 372 transitions. [2023-11-19 08:00:14,225 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 372 transitions. [2023-11-19 08:00:14,226 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 08:00:14,226 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 372 transitions. [2023-11-19 08:00:14,228 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 93.0) internal successors, (372), 4 states have internal predecessors, (372), 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) [2023-11-19 08:00:14,231 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 195.0) internal successors, (975), 5 states have internal predecessors, (975), 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) [2023-11-19 08:00:14,232 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 195.0) internal successors, (975), 5 states have internal predecessors, (975), 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) [2023-11-19 08:00:14,232 INFO L175 Difference]: Start difference. First operand has 29 places, 21 transitions, 65 flow. Second operand 4 states and 372 transitions. [2023-11-19 08:00:14,233 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 30 places, 27 transitions, 127 flow [2023-11-19 08:00:14,233 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 29 places, 27 transitions, 124 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-19 08:00:14,234 INFO L231 Difference]: Finished difference. Result has 29 places, 19 transitions, 60 flow [2023-11-19 08:00:14,235 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=195, PETRI_DIFFERENCE_MINUEND_FLOW=54, PETRI_DIFFERENCE_MINUEND_PLACES=26, 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=60, PETRI_PLACES=29, PETRI_TRANSITIONS=19} [2023-11-19 08:00:14,236 INFO L281 CegarLoopForPetriNet]: 28 programPoint places, 1 predicate places. [2023-11-19 08:00:14,236 INFO L495 AbstractCegarLoop]: Abstraction has has 29 places, 19 transitions, 60 flow [2023-11-19 08:00:14,236 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 88.75) internal successors, (355), 4 states have internal predecessors, (355), 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) [2023-11-19 08:00:14,237 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 08:00:14,237 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:00:14,237 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-19 08:00:14,238 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2023-11-19 08:00:14,238 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:00:14,238 INFO L85 PathProgramCache]: Analyzing trace with hash -998416627, now seen corresponding path program 1 times [2023-11-19 08:00:14,239 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:00:14,239 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1000374335] [2023-11-19 08:00:14,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:00:14,239 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:00:14,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:00:14,329 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 08:00:14,330 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:00:14,330 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1000374335] [2023-11-19 08:00:14,330 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1000374335] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:00:14,331 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:00:14,331 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 08:00:14,331 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1456089976] [2023-11-19 08:00:14,331 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:00:14,332 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 08:00:14,332 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:00:14,333 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 08:00:14,333 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-19 08:00:14,338 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 86 out of 195 [2023-11-19 08:00:14,339 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 29 places, 19 transitions, 60 flow. Second operand has 4 states, 4 states have (on average 88.75) internal successors, (355), 4 states have internal predecessors, (355), 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) [2023-11-19 08:00:14,339 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 08:00:14,339 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 86 of 195 [2023-11-19 08:00:14,339 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 08:00:14,400 INFO L124 PetriNetUnfolderBase]: 46/99 cut-off events. [2023-11-19 08:00:14,400 INFO L125 PetriNetUnfolderBase]: For 30/30 co-relation queries the response was YES. [2023-11-19 08:00:14,401 INFO L83 FinitePrefix]: Finished finitePrefix Result has 240 conditions, 99 events. 46/99 cut-off events. For 30/30 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 268 event pairs, 27 based on Foata normal form. 11/110 useless extension candidates. Maximal degree in co-relation 228. Up to 58 conditions per place. [2023-11-19 08:00:14,402 INFO L140 encePairwiseOnDemand]: 189/195 looper letters, 0 selfloop transitions, 0 changer transitions 21/21 dead transitions. [2023-11-19 08:00:14,402 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 26 places, 21 transitions, 100 flow [2023-11-19 08:00:14,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 08:00:14,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-19 08:00:14,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 367 transitions. [2023-11-19 08:00:14,405 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4705128205128205 [2023-11-19 08:00:14,405 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 367 transitions. [2023-11-19 08:00:14,406 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 367 transitions. [2023-11-19 08:00:14,406 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 08:00:14,406 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 367 transitions. [2023-11-19 08:00:14,408 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 91.75) internal successors, (367), 4 states have internal predecessors, (367), 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) [2023-11-19 08:00:14,410 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 195.0) internal successors, (975), 5 states have internal predecessors, (975), 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) [2023-11-19 08:00:14,411 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 195.0) internal successors, (975), 5 states have internal predecessors, (975), 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) [2023-11-19 08:00:14,412 INFO L175 Difference]: Start difference. First operand has 29 places, 19 transitions, 60 flow. Second operand 4 states and 367 transitions. [2023-11-19 08:00:14,412 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 26 places, 21 transitions, 100 flow [2023-11-19 08:00:14,413 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 23 places, 21 transitions, 93 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-11-19 08:00:14,413 INFO L231 Difference]: Finished difference. Result has 23 places, 0 transitions, 0 flow [2023-11-19 08:00:14,414 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=195, PETRI_DIFFERENCE_MINUEND_FLOW=35, PETRI_DIFFERENCE_MINUEND_PLACES=20, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=13, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=13, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=0, PETRI_PLACES=23, PETRI_TRANSITIONS=0} [2023-11-19 08:00:14,415 INFO L281 CegarLoopForPetriNet]: 28 programPoint places, -5 predicate places. [2023-11-19 08:00:14,415 INFO L495 AbstractCegarLoop]: Abstraction has has 23 places, 0 transitions, 0 flow [2023-11-19 08:00:14,415 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 88.75) internal successors, (355), 4 states have internal predecessors, (355), 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) [2023-11-19 08:00:14,418 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 10 remaining) [2023-11-19 08:00:14,419 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 10 remaining) [2023-11-19 08:00:14,419 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 10 remaining) [2023-11-19 08:00:14,419 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 10 remaining) [2023-11-19 08:00:14,420 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (5 of 10 remaining) [2023-11-19 08:00:14,420 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 10 remaining) [2023-11-19 08:00:14,420 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 10 remaining) [2023-11-19 08:00:14,420 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 10 remaining) [2023-11-19 08:00:14,421 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 10 remaining) [2023-11-19 08:00:14,421 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 10 remaining) [2023-11-19 08:00:14,421 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-19 08:00:14,422 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2023-11-19 08:00:14,427 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-19 08:00:14,427 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-19 08:00:14,432 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 08:00:14 BasicIcfg [2023-11-19 08:00:14,432 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-19 08:00:14,433 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 08:00:14,433 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 08:00:14,433 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 08:00:14,434 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:00:09" (3/4) ... [2023-11-19 08:00:14,435 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-19 08:00:14,438 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2023-11-19 08:00:14,439 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2023-11-19 08:00:14,444 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 16 nodes and edges [2023-11-19 08:00:14,444 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2023-11-19 08:00:14,445 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-19 08:00:14,445 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-19 08:00:14,541 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e4376fd-4d59-485f-aece-313457816205/bin/uautomizer-verify-uCwYo4JHxu/witness.graphml [2023-11-19 08:00:14,542 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e4376fd-4d59-485f-aece-313457816205/bin/uautomizer-verify-uCwYo4JHxu/witness.yml [2023-11-19 08:00:14,542 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 08:00:14,543 INFO L158 Benchmark]: Toolchain (without parser) took 7014.37ms. Allocated memory was 163.6MB in the beginning and 205.5MB in the end (delta: 41.9MB). Free memory was 132.3MB in the beginning and 91.7MB in the end (delta: 40.6MB). Peak memory consumption was 84.7MB. Max. memory is 16.1GB. [2023-11-19 08:00:14,543 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 115.3MB. Free memory is still 75.4MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 08:00:14,544 INFO L158 Benchmark]: CACSL2BoogieTranslator took 623.00ms. Allocated memory is still 163.6MB. Free memory was 132.3MB in the beginning and 109.8MB in the end (delta: 22.4MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2023-11-19 08:00:14,544 INFO L158 Benchmark]: Boogie Procedure Inliner took 81.69ms. Allocated memory is still 163.6MB. Free memory was 109.3MB in the beginning and 107.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 08:00:14,545 INFO L158 Benchmark]: Boogie Preprocessor took 55.15ms. Allocated memory is still 163.6MB. Free memory was 107.2MB in the beginning and 105.1MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 08:00:14,545 INFO L158 Benchmark]: RCFGBuilder took 828.06ms. Allocated memory is still 163.6MB. Free memory was 105.1MB in the beginning and 125.7MB in the end (delta: -20.6MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. [2023-11-19 08:00:14,546 INFO L158 Benchmark]: TraceAbstraction took 5310.20ms. Allocated memory was 163.6MB in the beginning and 205.5MB in the end (delta: 41.9MB). Free memory was 124.5MB in the beginning and 97.0MB in the end (delta: 27.5MB). Peak memory consumption was 70.3MB. Max. memory is 16.1GB. [2023-11-19 08:00:14,546 INFO L158 Benchmark]: Witness Printer took 109.44ms. Allocated memory is still 205.5MB. Free memory was 97.0MB in the beginning and 91.7MB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-11-19 08:00:14,549 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22ms. Allocated memory is still 115.3MB. Free memory is still 75.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 623.00ms. Allocated memory is still 163.6MB. Free memory was 132.3MB in the beginning and 109.8MB in the end (delta: 22.4MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 81.69ms. Allocated memory is still 163.6MB. Free memory was 109.3MB in the beginning and 107.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 55.15ms. Allocated memory is still 163.6MB. Free memory was 107.2MB in the beginning and 105.1MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 828.06ms. Allocated memory is still 163.6MB. Free memory was 105.1MB in the beginning and 125.7MB in the end (delta: -20.6MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. * TraceAbstraction took 5310.20ms. Allocated memory was 163.6MB in the beginning and 205.5MB in the end (delta: 41.9MB). Free memory was 124.5MB in the beginning and 97.0MB in the end (delta: 27.5MB). Peak memory consumption was 70.3MB. Max. memory is 16.1GB. * Witness Printer took 109.44ms. Allocated memory is still 205.5MB. Free memory was 97.0MB in the beginning and 91.7MB 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: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 3.8s, 105 PlacesBefore, 28 PlacesAfterwards, 101 TransitionsBefore, 22 TransitionsAfterwards, 1830 CoEnabledTransitionPairs, 6 FixpointIterations, 36 TrivialSequentialCompositions, 44 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 10 ConcurrentYvCompositions, 2 ChoiceCompositions, 92 TotalNumberOfCompositions, 4388 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2282, independent: 2112, independent conditional: 0, independent unconditional: 2112, dependent: 170, dependent conditional: 0, dependent unconditional: 170, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1060, independent: 1027, independent conditional: 0, independent unconditional: 1027, dependent: 33, dependent conditional: 0, dependent unconditional: 33, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 2282, independent: 1085, independent conditional: 0, independent unconditional: 1085, dependent: 137, dependent conditional: 0, dependent unconditional: 137, unknown: 1060, unknown conditional: 0, unknown unconditional: 1060] , Statistics on independence cache: Total cache size (in pairs): 92, Positive cache size: 78, Positive conditional cache size: 0, Positive unconditional cache size: 78, Negative cache size: 14, Negative conditional cache size: 0, Negative unconditional cache size: 14, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 766]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 766]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 800]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 800]: 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 5 procedures, 126 locations, 10 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: 5.2s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.9s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 45 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 35 mSDsluCounter, 3 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 13 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 124 IncrementalHoareTripleChecker+Invalid, 137 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 13 mSolverCounterUnsat, 3 mSDtfsCounter, 124 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=65occurred in iteration=1, InterpolantAutomatonStates: 11, 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, 0.5s InterpolantComputationTime, 29 NumberOfCodeBlocks, 29 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 26 ConstructedInterpolants, 0 QuantifiedInterpolants, 78 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 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 4 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-11-19 08:00:14,587 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e4376fd-4d59-485f-aece-313457816205/bin/uautomizer-verify-uCwYo4JHxu/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