./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/pthread-wmm/mix055.opt.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version b5237d83 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_7382605b-bb9f-4376-b327-51bee483d579/bin/uautomizer-vX5HgA9Q3a/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7382605b-bb9f-4376-b327-51bee483d579/bin/uautomizer-vX5HgA9Q3a/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7382605b-bb9f-4376-b327-51bee483d579/bin/uautomizer-vX5HgA9Q3a/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7382605b-bb9f-4376-b327-51bee483d579/bin/uautomizer-vX5HgA9Q3a/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-wmm/mix055.opt.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7382605b-bb9f-4376-b327-51bee483d579/bin/uautomizer-vX5HgA9Q3a/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7382605b-bb9f-4376-b327-51bee483d579/bin/uautomizer-vX5HgA9Q3a --witnessprinter.witness.filename witness.graphml --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 a4ebc4444460a05c0fe2d26c6269a3bce4de01cd65e247714c5237856dd0f827 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-b5237d8 [2022-11-21 13:53:39,027 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-21 13:53:39,030 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-21 13:53:39,071 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-21 13:53:39,071 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-21 13:53:39,075 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-21 13:53:39,080 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-21 13:53:39,083 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-21 13:53:39,086 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-21 13:53:39,094 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-21 13:53:39,096 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-21 13:53:39,098 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-21 13:53:39,099 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-21 13:53:39,102 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-21 13:53:39,104 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-21 13:53:39,107 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-21 13:53:39,109 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-21 13:53:39,110 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-21 13:53:39,112 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-21 13:53:39,118 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-21 13:53:39,120 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-21 13:53:39,122 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-21 13:53:39,124 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-21 13:53:39,125 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-21 13:53:39,134 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-21 13:53:39,137 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-21 13:53:39,137 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-21 13:53:39,138 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-21 13:53:39,140 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-21 13:53:39,142 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-21 13:53:39,142 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-21 13:53:39,143 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-21 13:53:39,145 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-21 13:53:39,146 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-21 13:53:39,147 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-21 13:53:39,148 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-21 13:53:39,148 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-21 13:53:39,149 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-21 13:53:39,149 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-21 13:53:39,151 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-21 13:53:39,151 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-21 13:53:39,152 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7382605b-bb9f-4376-b327-51bee483d579/bin/uautomizer-vX5HgA9Q3a/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-11-21 13:53:39,195 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-21 13:53:39,195 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-21 13:53:39,196 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-21 13:53:39,196 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-21 13:53:39,197 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-21 13:53:39,197 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-21 13:53:39,198 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-21 13:53:39,198 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-21 13:53:39,199 INFO L138 SettingsManager]: * Use SBE=true [2022-11-21 13:53:39,199 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-21 13:53:39,200 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-21 13:53:39,201 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-21 13:53:39,201 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-21 13:53:39,201 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-21 13:53:39,201 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-21 13:53:39,202 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-21 13:53:39,202 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-21 13:53:39,202 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-21 13:53:39,202 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-21 13:53:39,203 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-21 13:53:39,203 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-21 13:53:39,203 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-21 13:53:39,203 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-21 13:53:39,204 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-21 13:53:39,204 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-21 13:53:39,204 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-21 13:53:39,204 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 13:53:39,205 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-21 13:53:39,205 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-21 13:53:39,205 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-21 13:53:39,205 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-21 13:53:39,206 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-21 13:53:39,206 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-21 13:53:39,206 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-21 13:53:39,207 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-21 13:53:39,207 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7382605b-bb9f-4376-b327-51bee483d579/bin/uautomizer-vX5HgA9Q3a/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7382605b-bb9f-4376-b327-51bee483d579/bin/uautomizer-vX5HgA9Q3a Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a4ebc4444460a05c0fe2d26c6269a3bce4de01cd65e247714c5237856dd0f827 [2022-11-21 13:53:39,518 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-21 13:53:39,544 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-21 13:53:39,548 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-21 13:53:39,549 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-21 13:53:39,550 INFO L275 PluginConnector]: CDTParser initialized [2022-11-21 13:53:39,551 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7382605b-bb9f-4376-b327-51bee483d579/bin/uautomizer-vX5HgA9Q3a/../../sv-benchmarks/c/pthread-wmm/mix055.opt.i [2022-11-21 13:53:42,616 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-21 13:53:42,977 INFO L351 CDTParser]: Found 1 translation units. [2022-11-21 13:53:42,977 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7382605b-bb9f-4376-b327-51bee483d579/sv-benchmarks/c/pthread-wmm/mix055.opt.i [2022-11-21 13:53:43,003 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7382605b-bb9f-4376-b327-51bee483d579/bin/uautomizer-vX5HgA9Q3a/data/9a486b26a/60d9f6d817eb4fbc91088b6f7966c082/FLAG71518804a [2022-11-21 13:53:43,018 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7382605b-bb9f-4376-b327-51bee483d579/bin/uautomizer-vX5HgA9Q3a/data/9a486b26a/60d9f6d817eb4fbc91088b6f7966c082 [2022-11-21 13:53:43,021 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-21 13:53:43,023 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-21 13:53:43,024 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-21 13:53:43,024 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-21 13:53:43,029 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-21 13:53:43,029 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 01:53:43" (1/1) ... [2022-11-21 13:53:43,031 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7091a1a8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:53:43, skipping insertion in model container [2022-11-21 13:53:43,031 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 01:53:43" (1/1) ... [2022-11-21 13:53:43,039 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-21 13:53:43,079 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-21 13:53:43,336 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7382605b-bb9f-4376-b327-51bee483d579/sv-benchmarks/c/pthread-wmm/mix055.opt.i[944,957] [2022-11-21 13:53:43,619 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 13:53:43,638 INFO L203 MainTranslator]: Completed pre-run [2022-11-21 13:53:43,654 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7382605b-bb9f-4376-b327-51bee483d579/sv-benchmarks/c/pthread-wmm/mix055.opt.i[944,957] [2022-11-21 13:53:43,731 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 13:53:43,786 INFO L208 MainTranslator]: Completed translation [2022-11-21 13:53:43,786 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:53:43 WrapperNode [2022-11-21 13:53:43,787 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-21 13:53:43,788 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-21 13:53:43,788 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-21 13:53:43,788 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-21 13:53:43,796 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:53:43" (1/1) ... [2022-11-21 13:53:43,836 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:53:43" (1/1) ... [2022-11-21 13:53:43,884 INFO L138 Inliner]: procedures = 177, calls = 67, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 160 [2022-11-21 13:53:43,884 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-21 13:53:43,885 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-21 13:53:43,885 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-21 13:53:43,886 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-21 13:53:43,896 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:53:43" (1/1) ... [2022-11-21 13:53:43,897 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:53:43" (1/1) ... [2022-11-21 13:53:43,916 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:53:43" (1/1) ... [2022-11-21 13:53:43,919 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:53:43" (1/1) ... [2022-11-21 13:53:43,937 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:53:43" (1/1) ... [2022-11-21 13:53:43,940 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:53:43" (1/1) ... [2022-11-21 13:53:43,942 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:53:43" (1/1) ... [2022-11-21 13:53:43,943 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:53:43" (1/1) ... [2022-11-21 13:53:43,946 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-21 13:53:43,947 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-21 13:53:43,948 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-21 13:53:43,948 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-21 13:53:43,949 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:53:43" (1/1) ... [2022-11-21 13:53:43,957 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 13:53:43,969 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7382605b-bb9f-4376-b327-51bee483d579/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 13:53:43,997 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7382605b-bb9f-4376-b327-51bee483d579/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-21 13:53:44,009 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7382605b-bb9f-4376-b327-51bee483d579/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-21 13:53:44,044 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-21 13:53:44,044 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-21 13:53:44,045 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-21 13:53:44,045 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-21 13:53:44,045 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-21 13:53:44,047 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-11-21 13:53:44,047 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-11-21 13:53:44,048 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-11-21 13:53:44,048 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-11-21 13:53:44,048 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2022-11-21 13:53:44,048 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2022-11-21 13:53:44,048 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2022-11-21 13:53:44,049 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2022-11-21 13:53:44,049 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-21 13:53:44,049 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-21 13:53:44,049 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-21 13:53:44,049 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-21 13:53:44,051 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-21 13:53:44,213 INFO L235 CfgBuilder]: Building ICFG [2022-11-21 13:53:44,215 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-21 13:53:44,746 INFO L276 CfgBuilder]: Performing block encoding [2022-11-21 13:53:44,955 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-21 13:53:44,955 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-21 13:53:44,958 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 01:53:44 BoogieIcfgContainer [2022-11-21 13:53:44,959 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-21 13:53:44,962 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-21 13:53:44,963 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-21 13:53:44,966 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-21 13:53:44,967 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 01:53:43" (1/3) ... [2022-11-21 13:53:44,968 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@41c81269 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 01:53:44, skipping insertion in model container [2022-11-21 13:53:44,968 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:53:43" (2/3) ... [2022-11-21 13:53:44,970 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@41c81269 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 01:53:44, skipping insertion in model container [2022-11-21 13:53:44,971 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 01:53:44" (3/3) ... [2022-11-21 13:53:44,972 INFO L112 eAbstractionObserver]: Analyzing ICFG mix055.opt.i [2022-11-21 13:53:44,981 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-21 13:53:44,995 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-21 13:53:44,995 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2022-11-21 13:53:44,995 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-21 13:53:45,089 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-21 13:53:45,148 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 150 places, 139 transitions, 298 flow [2022-11-21 13:53:45,255 INFO L130 PetriNetUnfolder]: 2/135 cut-off events. [2022-11-21 13:53:45,255 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-21 13:53:45,262 INFO L83 FinitePrefix]: Finished finitePrefix Result has 148 conditions, 135 events. 2/135 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 82 event pairs, 0 based on Foata normal form. 0/125 useless extension candidates. Maximal degree in co-relation 95. Up to 2 conditions per place. [2022-11-21 13:53:45,263 INFO L82 GeneralOperation]: Start removeDead. Operand has 150 places, 139 transitions, 298 flow [2022-11-21 13:53:45,270 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 146 places, 135 transitions, 282 flow [2022-11-21 13:53:45,290 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-21 13:53:45,297 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=LoopsAndPotentialCycles, 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;@3c797a5d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-21 13:53:45,298 INFO L358 AbstractCegarLoop]: Starting to check reachability of 20 error locations. [2022-11-21 13:53:45,318 INFO L130 PetriNetUnfolder]: 0/52 cut-off events. [2022-11-21 13:53:45,319 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-21 13:53:45,319 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 13:53:45,319 INFO L209 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 13:53:45,320 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2022-11-21 13:53:45,332 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 13:53:45,332 INFO L85 PathProgramCache]: Analyzing trace with hash 1152239579, now seen corresponding path program 1 times [2022-11-21 13:53:45,343 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 13:53:45,344 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1525368936] [2022-11-21 13:53:45,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 13:53:45,344 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 13:53:45,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:53:45,842 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 13:53:45,843 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 13:53:45,843 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1525368936] [2022-11-21 13:53:45,844 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1525368936] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 13:53:45,845 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 13:53:45,845 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-21 13:53:45,847 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [548337087] [2022-11-21 13:53:45,848 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 13:53:45,857 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 13:53:45,858 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 13:53:45,893 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 13:53:45,896 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 13:53:45,899 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 113 out of 139 [2022-11-21 13:53:45,910 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 146 places, 135 transitions, 282 flow. Second operand has 3 states, 3 states have (on average 114.0) internal successors, (342), 3 states have internal predecessors, (342), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 13:53:45,910 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 13:53:45,910 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 113 of 139 [2022-11-21 13:53:45,911 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 13:53:48,432 INFO L130 PetriNetUnfolder]: 3018/10725 cut-off events. [2022-11-21 13:53:48,432 INFO L131 PetriNetUnfolder]: For 57/57 co-relation queries the response was YES. [2022-11-21 13:53:48,483 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15144 conditions, 10725 events. 3018/10725 cut-off events. For 57/57 co-relation queries the response was YES. Maximal size of possible extension queue 462. Compared 125478 event pairs, 2469 based on Foata normal form. 577/9158 useless extension candidates. Maximal degree in co-relation 15088. Up to 4247 conditions per place. [2022-11-21 13:53:48,565 INFO L137 encePairwiseOnDemand]: 124/139 looper letters, 31 selfloop transitions, 5 changer transitions 0/145 dead transitions. [2022-11-21 13:53:48,566 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 147 places, 145 transitions, 383 flow [2022-11-21 13:53:48,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 13:53:48,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-21 13:53:48,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 387 transitions. [2022-11-21 13:53:48,589 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9280575539568345 [2022-11-21 13:53:48,590 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 387 transitions. [2022-11-21 13:53:48,591 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 387 transitions. [2022-11-21 13:53:48,594 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 13:53:48,597 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 387 transitions. [2022-11-21 13:53:48,603 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 129.0) internal successors, (387), 3 states have internal predecessors, (387), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 13:53:48,611 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 139.0) internal successors, (556), 4 states have internal predecessors, (556), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 13:53:48,612 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 139.0) internal successors, (556), 4 states have internal predecessors, (556), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 13:53:48,614 INFO L175 Difference]: Start difference. First operand has 146 places, 135 transitions, 282 flow. Second operand 3 states and 387 transitions. [2022-11-21 13:53:48,615 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 147 places, 145 transitions, 383 flow [2022-11-21 13:53:48,620 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 143 places, 145 transitions, 376 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-11-21 13:53:48,626 INFO L231 Difference]: Finished difference. Result has 144 places, 136 transitions, 319 flow [2022-11-21 13:53:48,629 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=139, PETRI_DIFFERENCE_MINUEND_FLOW=272, PETRI_DIFFERENCE_MINUEND_PLACES=141, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=132, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=127, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=319, PETRI_PLACES=144, PETRI_TRANSITIONS=136} [2022-11-21 13:53:48,635 INFO L288 CegarLoopForPetriNet]: 146 programPoint places, -2 predicate places. [2022-11-21 13:53:48,635 INFO L495 AbstractCegarLoop]: Abstraction has has 144 places, 136 transitions, 319 flow [2022-11-21 13:53:48,636 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 114.0) internal successors, (342), 3 states have internal predecessors, (342), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 13:53:48,636 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 13:53:48,637 INFO L209 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 13:53:48,638 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-21 13:53:48,638 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2022-11-21 13:53:48,639 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 13:53:48,639 INFO L85 PathProgramCache]: Analyzing trace with hash -250312668, now seen corresponding path program 1 times [2022-11-21 13:53:48,639 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 13:53:48,640 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [278702688] [2022-11-21 13:53:48,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 13:53:48,640 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 13:53:48,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:53:48,831 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 13:53:48,831 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 13:53:48,832 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [278702688] [2022-11-21 13:53:48,832 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [278702688] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 13:53:48,832 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 13:53:48,833 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-21 13:53:48,833 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [635292855] [2022-11-21 13:53:48,833 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 13:53:48,835 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-21 13:53:48,835 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 13:53:48,836 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-21 13:53:48,836 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-21 13:53:48,838 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 113 out of 139 [2022-11-21 13:53:48,839 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 144 places, 136 transitions, 319 flow. Second operand has 4 states, 4 states have (on average 114.25) internal successors, (457), 4 states have internal predecessors, (457), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 13:53:48,839 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 13:53:48,839 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 113 of 139 [2022-11-21 13:53:48,840 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 13:53:50,008 INFO L130 PetriNetUnfolder]: 1696/5696 cut-off events. [2022-11-21 13:53:50,009 INFO L131 PetriNetUnfolder]: For 268/268 co-relation queries the response was YES. [2022-11-21 13:53:50,028 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9997 conditions, 5696 events. 1696/5696 cut-off events. For 268/268 co-relation queries the response was YES. Maximal size of possible extension queue 322. Compared 57963 event pairs, 747 based on Foata normal form. 0/4713 useless extension candidates. Maximal degree in co-relation 9942. Up to 1506 conditions per place. [2022-11-21 13:53:50,059 INFO L137 encePairwiseOnDemand]: 126/139 looper letters, 39 selfloop transitions, 13 changer transitions 0/161 dead transitions. [2022-11-21 13:53:50,060 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 147 places, 161 transitions, 499 flow [2022-11-21 13:53:50,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-21 13:53:50,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-11-21 13:53:50,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 508 transitions. [2022-11-21 13:53:50,062 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9136690647482014 [2022-11-21 13:53:50,062 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 508 transitions. [2022-11-21 13:53:50,063 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 508 transitions. [2022-11-21 13:53:50,063 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 13:53:50,063 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 508 transitions. [2022-11-21 13:53:50,065 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 127.0) internal successors, (508), 4 states have internal predecessors, (508), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 13:53:50,068 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 139.0) internal successors, (695), 5 states have internal predecessors, (695), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 13:53:50,068 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 139.0) internal successors, (695), 5 states have internal predecessors, (695), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 13:53:50,069 INFO L175 Difference]: Start difference. First operand has 144 places, 136 transitions, 319 flow. Second operand 4 states and 508 transitions. [2022-11-21 13:53:50,069 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 147 places, 161 transitions, 499 flow [2022-11-21 13:53:50,079 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 146 places, 161 transitions, 494 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-21 13:53:50,083 INFO L231 Difference]: Finished difference. Result has 148 places, 144 transitions, 417 flow [2022-11-21 13:53:50,084 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=139, PETRI_DIFFERENCE_MINUEND_FLOW=314, PETRI_DIFFERENCE_MINUEND_PLACES=143, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=136, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=123, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=417, PETRI_PLACES=148, PETRI_TRANSITIONS=144} [2022-11-21 13:53:50,085 INFO L288 CegarLoopForPetriNet]: 146 programPoint places, 2 predicate places. [2022-11-21 13:53:50,086 INFO L495 AbstractCegarLoop]: Abstraction has has 148 places, 144 transitions, 417 flow [2022-11-21 13:53:50,086 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 114.25) internal successors, (457), 4 states have internal predecessors, (457), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 13:53:50,086 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 13:53:50,087 INFO L209 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 13:53:50,087 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-21 13:53:50,087 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2022-11-21 13:53:50,088 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 13:53:50,088 INFO L85 PathProgramCache]: Analyzing trace with hash -250312667, now seen corresponding path program 1 times [2022-11-21 13:53:50,088 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 13:53:50,089 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1049520103] [2022-11-21 13:53:50,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 13:53:50,090 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 13:53:50,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:53:50,294 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 13:53:50,295 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 13:53:50,295 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1049520103] [2022-11-21 13:53:50,295 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1049520103] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 13:53:50,296 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 13:53:50,296 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-21 13:53:50,297 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1696213560] [2022-11-21 13:53:50,297 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 13:53:50,299 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-21 13:53:50,299 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 13:53:50,301 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-21 13:53:50,302 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-21 13:53:50,305 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 113 out of 139 [2022-11-21 13:53:50,306 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 148 places, 144 transitions, 417 flow. Second operand has 4 states, 4 states have (on average 114.25) internal successors, (457), 4 states have internal predecessors, (457), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 13:53:50,306 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 13:53:50,306 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 113 of 139 [2022-11-21 13:53:50,306 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 13:53:51,002 INFO L130 PetriNetUnfolder]: 646/2801 cut-off events. [2022-11-21 13:53:51,004 INFO L131 PetriNetUnfolder]: For 2098/2098 co-relation queries the response was YES. [2022-11-21 13:53:51,012 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5031 conditions, 2801 events. 646/2801 cut-off events. For 2098/2098 co-relation queries the response was YES. Maximal size of possible extension queue 114. Compared 25276 event pairs, 400 based on Foata normal form. 297/2836 useless extension candidates. Maximal degree in co-relation 4973. Up to 931 conditions per place. [2022-11-21 13:53:51,027 INFO L137 encePairwiseOnDemand]: 130/139 looper letters, 31 selfloop transitions, 5 changer transitions 0/145 dead transitions. [2022-11-21 13:53:51,028 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 147 places, 145 transitions, 457 flow [2022-11-21 13:53:51,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-21 13:53:51,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-11-21 13:53:51,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 488 transitions. [2022-11-21 13:53:51,032 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8776978417266187 [2022-11-21 13:53:51,033 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 488 transitions. [2022-11-21 13:53:51,033 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 488 transitions. [2022-11-21 13:53:51,033 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 13:53:51,034 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 488 transitions. [2022-11-21 13:53:51,035 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 122.0) internal successors, (488), 4 states have internal predecessors, (488), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 13:53:51,037 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 139.0) internal successors, (695), 5 states have internal predecessors, (695), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 13:53:51,038 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 139.0) internal successors, (695), 5 states have internal predecessors, (695), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 13:53:51,038 INFO L175 Difference]: Start difference. First operand has 148 places, 144 transitions, 417 flow. Second operand 4 states and 488 transitions. [2022-11-21 13:53:51,038 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 147 places, 145 transitions, 457 flow [2022-11-21 13:53:51,043 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 144 places, 145 transitions, 434 flow, removed 4 selfloop flow, removed 3 redundant places. [2022-11-21 13:53:51,048 INFO L231 Difference]: Finished difference. Result has 144 places, 136 transitions, 348 flow [2022-11-21 13:53:51,048 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=139, PETRI_DIFFERENCE_MINUEND_FLOW=338, PETRI_DIFFERENCE_MINUEND_PLACES=141, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=136, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=131, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=348, PETRI_PLACES=144, PETRI_TRANSITIONS=136} [2022-11-21 13:53:51,050 INFO L288 CegarLoopForPetriNet]: 146 programPoint places, -2 predicate places. [2022-11-21 13:53:51,050 INFO L495 AbstractCegarLoop]: Abstraction has has 144 places, 136 transitions, 348 flow [2022-11-21 13:53:51,051 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 114.25) internal successors, (457), 4 states have internal predecessors, (457), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 13:53:51,051 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 13:53:51,052 INFO L209 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 13:53:51,052 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-21 13:53:51,052 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2022-11-21 13:53:51,053 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 13:53:51,053 INFO L85 PathProgramCache]: Analyzing trace with hash 721542385, now seen corresponding path program 1 times [2022-11-21 13:53:51,054 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 13:53:51,054 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1424013968] [2022-11-21 13:53:51,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 13:53:51,055 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 13:53:51,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:53:51,268 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 13:53:51,269 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 13:53:51,269 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1424013968] [2022-11-21 13:53:51,269 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1424013968] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 13:53:51,269 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 13:53:51,270 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-21 13:53:51,270 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [668450] [2022-11-21 13:53:51,270 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 13:53:51,271 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-21 13:53:51,271 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 13:53:51,272 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-21 13:53:51,272 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-11-21 13:53:51,273 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 113 out of 139 [2022-11-21 13:53:51,274 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 144 places, 136 transitions, 348 flow. Second operand has 5 states, 5 states have (on average 114.6) internal successors, (573), 5 states have internal predecessors, (573), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 13:53:51,274 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 13:53:51,274 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 113 of 139 [2022-11-21 13:53:51,275 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 13:53:51,661 INFO L130 PetriNetUnfolder]: 454/1245 cut-off events. [2022-11-21 13:53:51,662 INFO L131 PetriNetUnfolder]: For 513/513 co-relation queries the response was YES. [2022-11-21 13:53:51,667 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2583 conditions, 1245 events. 454/1245 cut-off events. For 513/513 co-relation queries the response was YES. Maximal size of possible extension queue 85. Compared 8275 event pairs, 24 based on Foata normal form. 0/1209 useless extension candidates. Maximal degree in co-relation 2526. Up to 266 conditions per place. [2022-11-21 13:53:51,674 INFO L137 encePairwiseOnDemand]: 130/139 looper letters, 38 selfloop transitions, 13 changer transitions 4/164 dead transitions. [2022-11-21 13:53:51,675 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 148 places, 164 transitions, 542 flow [2022-11-21 13:53:51,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-21 13:53:51,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-11-21 13:53:51,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 624 transitions. [2022-11-21 13:53:51,678 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.897841726618705 [2022-11-21 13:53:51,678 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 624 transitions. [2022-11-21 13:53:51,679 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 624 transitions. [2022-11-21 13:53:51,679 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 13:53:51,679 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 624 transitions. [2022-11-21 13:53:51,682 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 124.8) internal successors, (624), 5 states have internal predecessors, (624), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 13:53:51,684 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 139.0) internal successors, (834), 6 states have internal predecessors, (834), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 13:53:51,685 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 139.0) internal successors, (834), 6 states have internal predecessors, (834), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 13:53:51,685 INFO L175 Difference]: Start difference. First operand has 144 places, 136 transitions, 348 flow. Second operand 5 states and 624 transitions. [2022-11-21 13:53:51,685 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 148 places, 164 transitions, 542 flow [2022-11-21 13:53:51,687 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 146 places, 164 transitions, 536 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-21 13:53:51,690 INFO L231 Difference]: Finished difference. Result has 147 places, 136 transitions, 384 flow [2022-11-21 13:53:51,691 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=139, PETRI_DIFFERENCE_MINUEND_FLOW=342, PETRI_DIFFERENCE_MINUEND_PLACES=142, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=136, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=123, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=384, PETRI_PLACES=147, PETRI_TRANSITIONS=136} [2022-11-21 13:53:51,692 INFO L288 CegarLoopForPetriNet]: 146 programPoint places, 1 predicate places. [2022-11-21 13:53:51,692 INFO L495 AbstractCegarLoop]: Abstraction has has 147 places, 136 transitions, 384 flow [2022-11-21 13:53:51,693 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 114.6) internal successors, (573), 5 states have internal predecessors, (573), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 13:53:51,693 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 13:53:51,693 INFO L209 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 13:53:51,693 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-21 13:53:51,694 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting P3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2022-11-21 13:53:51,694 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 13:53:51,694 INFO L85 PathProgramCache]: Analyzing trace with hash 1065175622, now seen corresponding path program 1 times [2022-11-21 13:53:51,695 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 13:53:51,695 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [504669810] [2022-11-21 13:53:51,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 13:53:51,695 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 13:53:51,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:53:51,999 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 13:53:51,999 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 13:53:52,000 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [504669810] [2022-11-21 13:53:52,000 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [504669810] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 13:53:52,000 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 13:53:52,001 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-21 13:53:52,001 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1725435606] [2022-11-21 13:53:52,001 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 13:53:52,001 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-21 13:53:52,002 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 13:53:52,002 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-21 13:53:52,002 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-21 13:53:52,004 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 113 out of 139 [2022-11-21 13:53:52,005 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 147 places, 136 transitions, 384 flow. Second operand has 6 states, 6 states have (on average 115.0) internal successors, (690), 6 states have internal predecessors, (690), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 13:53:52,005 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 13:53:52,005 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 113 of 139 [2022-11-21 13:53:52,005 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 13:53:52,382 INFO L130 PetriNetUnfolder]: 427/1190 cut-off events. [2022-11-21 13:53:52,382 INFO L131 PetriNetUnfolder]: For 659/659 co-relation queries the response was YES. [2022-11-21 13:53:52,387 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2814 conditions, 1190 events. 427/1190 cut-off events. For 659/659 co-relation queries the response was YES. Maximal size of possible extension queue 79. Compared 7807 event pairs, 24 based on Foata normal form. 16/1186 useless extension candidates. Maximal degree in co-relation 2756. Up to 255 conditions per place. [2022-11-21 13:53:52,389 INFO L137 encePairwiseOnDemand]: 130/139 looper letters, 0 selfloop transitions, 0 changer transitions 156/156 dead transitions. [2022-11-21 13:53:52,389 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 148 places, 156 transitions, 506 flow [2022-11-21 13:53:52,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-21 13:53:52,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-21 13:53:52,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 729 transitions. [2022-11-21 13:53:52,392 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8741007194244604 [2022-11-21 13:53:52,392 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 729 transitions. [2022-11-21 13:53:52,393 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 729 transitions. [2022-11-21 13:53:52,393 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 13:53:52,393 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 729 transitions. [2022-11-21 13:53:52,396 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 121.5) internal successors, (729), 6 states have internal predecessors, (729), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 13:53:52,399 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 139.0) internal successors, (973), 7 states have internal predecessors, (973), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 13:53:52,400 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 139.0) internal successors, (973), 7 states have internal predecessors, (973), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 13:53:52,400 INFO L175 Difference]: Start difference. First operand has 147 places, 136 transitions, 384 flow. Second operand 6 states and 729 transitions. [2022-11-21 13:53:52,400 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 148 places, 156 transitions, 506 flow [2022-11-21 13:53:52,410 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 142 places, 156 transitions, 451 flow, removed 8 selfloop flow, removed 6 redundant places. [2022-11-21 13:53:52,412 INFO L231 Difference]: Finished difference. Result has 142 places, 0 transitions, 0 flow [2022-11-21 13:53:52,412 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=139, PETRI_DIFFERENCE_MINUEND_FLOW=297, PETRI_DIFFERENCE_MINUEND_PLACES=137, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=132, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=132, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=142, PETRI_TRANSITIONS=0} [2022-11-21 13:53:52,415 INFO L288 CegarLoopForPetriNet]: 146 programPoint places, -4 predicate places. [2022-11-21 13:53:52,415 INFO L495 AbstractCegarLoop]: Abstraction has has 142 places, 0 transitions, 0 flow [2022-11-21 13:53:52,416 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 115.0) internal successors, (690), 6 states have internal predecessors, (690), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 13:53:52,419 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 20 remaining) [2022-11-21 13:53:52,420 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 20 remaining) [2022-11-21 13:53:52,420 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 20 remaining) [2022-11-21 13:53:52,421 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 20 remaining) [2022-11-21 13:53:52,421 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 20 remaining) [2022-11-21 13:53:52,421 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 20 remaining) [2022-11-21 13:53:52,421 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 20 remaining) [2022-11-21 13:53:52,422 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 20 remaining) [2022-11-21 13:53:52,422 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (11 of 20 remaining) [2022-11-21 13:53:52,422 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (10 of 20 remaining) [2022-11-21 13:53:52,423 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (9 of 20 remaining) [2022-11-21 13:53:52,423 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 20 remaining) [2022-11-21 13:53:52,423 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 20 remaining) [2022-11-21 13:53:52,423 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 20 remaining) [2022-11-21 13:53:52,424 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 20 remaining) [2022-11-21 13:53:52,424 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 20 remaining) [2022-11-21 13:53:52,424 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 20 remaining) [2022-11-21 13:53:52,424 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 20 remaining) [2022-11-21 13:53:52,428 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 20 remaining) [2022-11-21 13:53:52,429 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 20 remaining) [2022-11-21 13:53:52,429 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-21 13:53:52,430 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2022-11-21 13:53:52,437 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-21 13:53:52,437 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-21 13:53:52,442 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.11 01:53:52 BasicIcfg [2022-11-21 13:53:52,442 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-21 13:53:52,443 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-21 13:53:52,443 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-21 13:53:52,443 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-21 13:53:52,444 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 01:53:44" (3/4) ... [2022-11-21 13:53:52,447 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-21 13:53:52,453 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2022-11-21 13:53:52,453 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2022-11-21 13:53:52,453 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2022-11-21 13:53:52,453 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P3 [2022-11-21 13:53:52,460 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 32 nodes and edges [2022-11-21 13:53:52,461 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2022-11-21 13:53:52,461 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-11-21 13:53:52,461 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-21 13:53:52,551 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7382605b-bb9f-4376-b327-51bee483d579/bin/uautomizer-vX5HgA9Q3a/witness.graphml [2022-11-21 13:53:52,551 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-21 13:53:52,557 INFO L158 Benchmark]: Toolchain (without parser) took 9534.19ms. Allocated memory was 146.8MB in the beginning and 704.6MB in the end (delta: 557.8MB). Free memory was 113.2MB in the beginning and 534.0MB in the end (delta: -420.8MB). Peak memory consumption was 408.0MB. Max. memory is 16.1GB. [2022-11-21 13:53:52,557 INFO L158 Benchmark]: CDTParser took 0.34ms. Allocated memory is still 146.8MB. Free memory is still 86.1MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-21 13:53:52,557 INFO L158 Benchmark]: CACSL2BoogieTranslator took 762.88ms. Allocated memory is still 146.8MB. Free memory was 112.9MB in the beginning and 89.7MB in the end (delta: 23.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2022-11-21 13:53:52,558 INFO L158 Benchmark]: Boogie Procedure Inliner took 96.47ms. Allocated memory is still 146.8MB. Free memory was 89.7MB in the beginning and 86.9MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-21 13:53:52,558 INFO L158 Benchmark]: Boogie Preprocessor took 61.81ms. Allocated memory is still 146.8MB. Free memory was 86.9MB in the beginning and 84.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-21 13:53:52,558 INFO L158 Benchmark]: RCFGBuilder took 1011.61ms. Allocated memory was 146.8MB in the beginning and 184.5MB in the end (delta: 37.7MB). Free memory was 84.8MB in the beginning and 130.3MB in the end (delta: -45.5MB). Peak memory consumption was 23.5MB. Max. memory is 16.1GB. [2022-11-21 13:53:52,559 INFO L158 Benchmark]: TraceAbstraction took 7480.22ms. Allocated memory was 184.5MB in the beginning and 704.6MB in the end (delta: 520.1MB). Free memory was 130.3MB in the beginning and 268.7MB in the end (delta: -138.4MB). Peak memory consumption was 382.4MB. Max. memory is 16.1GB. [2022-11-21 13:53:52,559 INFO L158 Benchmark]: Witness Printer took 113.02ms. Allocated memory is still 704.6MB. Free memory was 268.7MB in the beginning and 534.0MB in the end (delta: -265.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-21 13:53:52,562 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34ms. Allocated memory is still 146.8MB. Free memory is still 86.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 762.88ms. Allocated memory is still 146.8MB. Free memory was 112.9MB in the beginning and 89.7MB in the end (delta: 23.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 96.47ms. Allocated memory is still 146.8MB. Free memory was 89.7MB in the beginning and 86.9MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 61.81ms. Allocated memory is still 146.8MB. Free memory was 86.9MB in the beginning and 84.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1011.61ms. Allocated memory was 146.8MB in the beginning and 184.5MB in the end (delta: 37.7MB). Free memory was 84.8MB in the beginning and 130.3MB in the end (delta: -45.5MB). Peak memory consumption was 23.5MB. Max. memory is 16.1GB. * TraceAbstraction took 7480.22ms. Allocated memory was 184.5MB in the beginning and 704.6MB in the end (delta: 520.1MB). Free memory was 130.3MB in the beginning and 268.7MB in the end (delta: -138.4MB). Peak memory consumption was 382.4MB. Max. memory is 16.1GB. * Witness Printer took 113.02ms. Allocated memory is still 704.6MB. Free memory was 268.7MB in the beginning and 534.0MB in the end (delta: -265.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 756]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 756]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 771]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 771]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 791]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 791]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 821]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 821]: 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 9 procedures, 180 locations, 20 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: 7.3s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 5.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 161 SdHoareTripleChecker+Valid, 0.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 161 mSDsluCounter, 17 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 63 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 273 IncrementalHoareTripleChecker+Invalid, 336 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 63 mSolverCounterUnsat, 17 mSDtfsCounter, 273 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 17 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=417occurred in iteration=2, InterpolantAutomatonStates: 22, 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, 0.2s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 330 NumberOfCodeBlocks, 330 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 325 ConstructedInterpolants, 0 QuantifiedInterpolants, 895 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 8 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-11-21 13:53:52,600 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7382605b-bb9f-4376-b327-51bee483d579/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE