./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/pthread-wmm/safe008_power.opt.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version b5237d83 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac19910f-dfd8-4238-8ec6-8ce12d41a809/bin/uautomizer-vX5HgA9Q3a/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac19910f-dfd8-4238-8ec6-8ce12d41a809/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_ac19910f-dfd8-4238-8ec6-8ce12d41a809/bin/uautomizer-vX5HgA9Q3a/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac19910f-dfd8-4238-8ec6-8ce12d41a809/bin/uautomizer-vX5HgA9Q3a/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-wmm/safe008_power.opt.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac19910f-dfd8-4238-8ec6-8ce12d41a809/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_ac19910f-dfd8-4238-8ec6-8ce12d41a809/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 384baf663e8fa66fe4dacec773bc2c5acf71b0d621e6212d04013b3fa3b41d51 --- 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 13:45:10,750 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-21 13:45:10,752 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-21 13:45:10,789 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-21 13:45:10,790 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-21 13:45:10,791 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-21 13:45:10,792 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-21 13:45:10,804 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-21 13:45:10,807 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-21 13:45:10,813 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-21 13:45:10,814 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-21 13:45:10,816 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-21 13:45:10,816 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-21 13:45:10,817 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-21 13:45:10,819 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-21 13:45:10,820 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-21 13:45:10,821 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-21 13:45:10,822 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-21 13:45:10,829 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-21 13:45:10,837 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-21 13:45:10,841 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-21 13:45:10,845 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-21 13:45:10,848 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-21 13:45:10,849 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-21 13:45:10,861 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-21 13:45:10,861 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-21 13:45:10,862 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-21 13:45:10,864 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-21 13:45:10,864 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-21 13:45:10,866 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-21 13:45:10,867 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-21 13:45:10,868 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-21 13:45:10,870 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-21 13:45:10,872 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-21 13:45:10,875 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-21 13:45:10,875 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-21 13:45:10,876 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-21 13:45:10,877 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-21 13:45:10,877 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-21 13:45:10,879 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-21 13:45:10,894 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-21 13:45:10,895 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac19910f-dfd8-4238-8ec6-8ce12d41a809/bin/uautomizer-vX5HgA9Q3a/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-11-21 13:45:10,966 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-21 13:45:10,967 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-21 13:45:10,967 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-21 13:45:10,968 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-21 13:45:10,969 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-21 13:45:10,969 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-21 13:45:10,970 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-21 13:45:10,970 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-21 13:45:10,970 INFO L138 SettingsManager]: * Use SBE=true [2022-11-21 13:45:10,971 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-21 13:45:10,972 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-21 13:45:10,972 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-21 13:45:10,972 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-21 13:45:10,973 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-21 13:45:10,973 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-21 13:45:10,973 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-21 13:45:10,973 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-21 13:45:10,973 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-21 13:45:10,974 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-21 13:45:10,974 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-21 13:45:10,974 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-21 13:45:10,974 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-21 13:45:10,975 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-21 13:45:10,975 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-21 13:45:10,975 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-21 13:45:10,975 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-21 13:45:10,976 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 13:45:10,976 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-21 13:45:10,977 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-21 13:45:10,977 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-21 13:45:10,977 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-21 13:45:10,977 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-21 13:45:10,978 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-21 13:45:10,978 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-21 13:45:10,978 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-21 13:45:10,978 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_ac19910f-dfd8-4238-8ec6-8ce12d41a809/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac19910f-dfd8-4238-8ec6-8ce12d41a809/bin/uautomizer-vX5HgA9Q3a Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 384baf663e8fa66fe4dacec773bc2c5acf71b0d621e6212d04013b3fa3b41d51 [2022-11-21 13:45:11,324 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-21 13:45:11,368 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-21 13:45:11,371 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-21 13:45:11,373 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-21 13:45:11,373 INFO L275 PluginConnector]: CDTParser initialized [2022-11-21 13:45:11,375 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac19910f-dfd8-4238-8ec6-8ce12d41a809/bin/uautomizer-vX5HgA9Q3a/../../sv-benchmarks/c/pthread-wmm/safe008_power.opt.i [2022-11-21 13:45:14,560 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-21 13:45:14,930 INFO L351 CDTParser]: Found 1 translation units. [2022-11-21 13:45:14,930 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac19910f-dfd8-4238-8ec6-8ce12d41a809/sv-benchmarks/c/pthread-wmm/safe008_power.opt.i [2022-11-21 13:45:14,952 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac19910f-dfd8-4238-8ec6-8ce12d41a809/bin/uautomizer-vX5HgA9Q3a/data/39900d0fa/cad6a0f1482a4155b794e55adf13cd3b/FLAG85f7c0942 [2022-11-21 13:45:14,985 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac19910f-dfd8-4238-8ec6-8ce12d41a809/bin/uautomizer-vX5HgA9Q3a/data/39900d0fa/cad6a0f1482a4155b794e55adf13cd3b [2022-11-21 13:45:14,988 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-21 13:45:14,989 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-21 13:45:14,991 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-21 13:45:14,991 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-21 13:45:14,996 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-21 13:45:14,997 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 01:45:14" (1/1) ... [2022-11-21 13:45:14,998 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7da1e706 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:45:14, skipping insertion in model container [2022-11-21 13:45:14,998 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 01:45:14" (1/1) ... [2022-11-21 13:45:15,007 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-21 13:45:15,053 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-21 13:45:15,244 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_ac19910f-dfd8-4238-8ec6-8ce12d41a809/sv-benchmarks/c/pthread-wmm/safe008_power.opt.i[951,964] [2022-11-21 13:45:15,520 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 13:45:15,538 INFO L203 MainTranslator]: Completed pre-run [2022-11-21 13:45:15,559 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_ac19910f-dfd8-4238-8ec6-8ce12d41a809/sv-benchmarks/c/pthread-wmm/safe008_power.opt.i[951,964] [2022-11-21 13:45:15,682 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 13:45:15,745 INFO L208 MainTranslator]: Completed translation [2022-11-21 13:45:15,747 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:45:15 WrapperNode [2022-11-21 13:45:15,748 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-21 13:45:15,749 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-21 13:45:15,750 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-21 13:45:15,750 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-21 13:45:15,759 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:45:15" (1/1) ... [2022-11-21 13:45:15,802 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:45:15" (1/1) ... [2022-11-21 13:45:15,856 INFO L138 Inliner]: procedures = 176, calls = 73, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 182 [2022-11-21 13:45:15,862 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-21 13:45:15,863 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-21 13:45:15,864 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-21 13:45:15,864 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-21 13:45:15,876 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:45:15" (1/1) ... [2022-11-21 13:45:15,877 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:45:15" (1/1) ... [2022-11-21 13:45:15,897 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:45:15" (1/1) ... [2022-11-21 13:45:15,900 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:45:15" (1/1) ... [2022-11-21 13:45:15,911 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:45:15" (1/1) ... [2022-11-21 13:45:15,929 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:45:15" (1/1) ... [2022-11-21 13:45:15,932 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:45:15" (1/1) ... [2022-11-21 13:45:15,948 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:45:15" (1/1) ... [2022-11-21 13:45:15,952 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-21 13:45:15,953 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-21 13:45:15,954 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-21 13:45:15,954 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-21 13:45:15,955 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:45:15" (1/1) ... [2022-11-21 13:45:15,964 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 13:45:15,987 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac19910f-dfd8-4238-8ec6-8ce12d41a809/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 13:45:16,015 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac19910f-dfd8-4238-8ec6-8ce12d41a809/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-21 13:45:16,019 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac19910f-dfd8-4238-8ec6-8ce12d41a809/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-21 13:45:16,068 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-21 13:45:16,069 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-21 13:45:16,069 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-21 13:45:16,069 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-21 13:45:16,070 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-21 13:45:16,070 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-21 13:45:16,070 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-11-21 13:45:16,070 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-11-21 13:45:16,071 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-11-21 13:45:16,071 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-11-21 13:45:16,071 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2022-11-21 13:45:16,071 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2022-11-21 13:45:16,071 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-21 13:45:16,072 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-21 13:45:16,072 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-21 13:45:16,072 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-21 13:45:16,074 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 13:45:16,286 INFO L235 CfgBuilder]: Building ICFG [2022-11-21 13:45:16,303 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-21 13:45:17,043 INFO L276 CfgBuilder]: Performing block encoding [2022-11-21 13:45:17,394 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-21 13:45:17,394 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-21 13:45:17,397 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 01:45:17 BoogieIcfgContainer [2022-11-21 13:45:17,398 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-21 13:45:17,401 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-21 13:45:17,401 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-21 13:45:17,405 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-21 13:45:17,405 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 01:45:14" (1/3) ... [2022-11-21 13:45:17,407 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25161f73 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 01:45:17, skipping insertion in model container [2022-11-21 13:45:17,407 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:45:15" (2/3) ... [2022-11-21 13:45:17,409 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25161f73 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 01:45:17, skipping insertion in model container [2022-11-21 13:45:17,410 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 01:45:17" (3/3) ... [2022-11-21 13:45:17,411 INFO L112 eAbstractionObserver]: Analyzing ICFG safe008_power.opt.i [2022-11-21 13:45:17,424 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-21 13:45:17,437 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-21 13:45:17,438 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2022-11-21 13:45:17,438 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-21 13:45:17,559 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-21 13:45:17,615 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 146 places, 138 transitions, 291 flow [2022-11-21 13:45:17,702 INFO L130 PetriNetUnfolder]: 2/135 cut-off events. [2022-11-21 13:45:17,702 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-21 13:45:17,709 INFO L83 FinitePrefix]: Finished finitePrefix Result has 145 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 68 event pairs, 0 based on Foata normal form. 0/127 useless extension candidates. Maximal degree in co-relation 77. Up to 2 conditions per place. [2022-11-21 13:45:17,709 INFO L82 GeneralOperation]: Start removeDead. Operand has 146 places, 138 transitions, 291 flow [2022-11-21 13:45:17,715 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 143 places, 135 transitions, 279 flow [2022-11-21 13:45:17,725 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-21 13:45:17,732 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;@4b614de2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-21 13:45:17,732 INFO L358 AbstractCegarLoop]: Starting to check reachability of 15 error locations. [2022-11-21 13:45:17,755 INFO L130 PetriNetUnfolder]: 0/71 cut-off events. [2022-11-21 13:45:17,755 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-21 13:45:17,755 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 13:45:17,757 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] [2022-11-21 13:45:17,758 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-11-21 13:45:17,764 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 13:45:17,764 INFO L85 PathProgramCache]: Analyzing trace with hash -1272045939, now seen corresponding path program 1 times [2022-11-21 13:45:17,776 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 13:45:17,777 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [951505985] [2022-11-21 13:45:17,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 13:45:17,778 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 13:45:18,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:45:18,457 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 13:45:18,458 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 13:45:18,458 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [951505985] [2022-11-21 13:45:18,459 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [951505985] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 13:45:18,459 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 13:45:18,460 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-21 13:45:18,464 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [170327411] [2022-11-21 13:45:18,465 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 13:45:18,474 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 13:45:18,474 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 13:45:18,518 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 13:45:18,520 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 13:45:18,523 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 114 out of 138 [2022-11-21 13:45:18,527 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 143 places, 135 transitions, 279 flow. Second operand has 3 states, 3 states have (on average 115.66666666666667) internal successors, (347), 3 states have internal predecessors, (347), 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 13:45:18,527 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 13:45:18,528 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 114 of 138 [2022-11-21 13:45:18,529 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 13:45:19,651 INFO L130 PetriNetUnfolder]: 726/2858 cut-off events. [2022-11-21 13:45:19,652 INFO L131 PetriNetUnfolder]: For 25/25 co-relation queries the response was YES. [2022-11-21 13:45:19,667 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4056 conditions, 2858 events. 726/2858 cut-off events. For 25/25 co-relation queries the response was YES. Maximal size of possible extension queue 112. Compared 25096 event pairs, 377 based on Foata normal form. 121/2545 useless extension candidates. Maximal degree in co-relation 3985. Up to 930 conditions per place. [2022-11-21 13:45:19,686 INFO L137 encePairwiseOnDemand]: 126/138 looper letters, 30 selfloop transitions, 4 changer transitions 0/145 dead transitions. [2022-11-21 13:45:19,686 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 144 places, 145 transitions, 373 flow [2022-11-21 13:45:19,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 13:45:19,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-21 13:45:19,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 386 transitions. [2022-11-21 13:45:19,709 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9323671497584541 [2022-11-21 13:45:19,710 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 386 transitions. [2022-11-21 13:45:19,710 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 386 transitions. [2022-11-21 13:45:19,715 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 13:45:19,718 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 386 transitions. [2022-11-21 13:45:19,724 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 128.66666666666666) internal successors, (386), 3 states have internal predecessors, (386), 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 13:45:19,732 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 138.0) internal successors, (552), 4 states have internal predecessors, (552), 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 13:45:19,733 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 138.0) internal successors, (552), 4 states have internal predecessors, (552), 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 13:45:19,735 INFO L175 Difference]: Start difference. First operand has 143 places, 135 transitions, 279 flow. Second operand 3 states and 386 transitions. [2022-11-21 13:45:19,736 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 144 places, 145 transitions, 373 flow [2022-11-21 13:45:19,742 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 141 places, 145 transitions, 368 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-11-21 13:45:19,747 INFO L231 Difference]: Finished difference. Result has 142 places, 135 transitions, 306 flow [2022-11-21 13:45:19,750 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=138, PETRI_DIFFERENCE_MINUEND_FLOW=270, PETRI_DIFFERENCE_MINUEND_PLACES=139, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=132, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=128, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=306, PETRI_PLACES=142, PETRI_TRANSITIONS=135} [2022-11-21 13:45:19,757 INFO L288 CegarLoopForPetriNet]: 143 programPoint places, -1 predicate places. [2022-11-21 13:45:19,757 INFO L495 AbstractCegarLoop]: Abstraction has has 142 places, 135 transitions, 306 flow [2022-11-21 13:45:19,758 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 115.66666666666667) internal successors, (347), 3 states have internal predecessors, (347), 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 13:45:19,758 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 13:45:19,758 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] [2022-11-21 13:45:19,758 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-21 13:45:19,759 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-11-21 13:45:19,760 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 13:45:19,760 INFO L85 PathProgramCache]: Analyzing trace with hash 804471493, now seen corresponding path program 1 times [2022-11-21 13:45:19,761 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 13:45:19,761 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [637355387] [2022-11-21 13:45:19,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 13:45:19,761 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 13:45:19,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:45:20,136 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 13:45:20,137 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 13:45:20,138 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [637355387] [2022-11-21 13:45:20,141 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [637355387] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 13:45:20,142 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 13:45:20,142 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-21 13:45:20,142 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1835174324] [2022-11-21 13:45:20,142 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 13:45:20,144 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-21 13:45:20,145 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 13:45:20,146 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-21 13:45:20,146 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-21 13:45:20,154 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 114 out of 138 [2022-11-21 13:45:20,155 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 142 places, 135 transitions, 306 flow. Second operand has 4 states, 4 states have (on average 116.25) internal successors, (465), 4 states have internal predecessors, (465), 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 13:45:20,155 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 13:45:20,155 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 114 of 138 [2022-11-21 13:45:20,155 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 13:45:20,780 INFO L130 PetriNetUnfolder]: 546/1622 cut-off events. [2022-11-21 13:45:20,781 INFO L131 PetriNetUnfolder]: For 72/72 co-relation queries the response was YES. [2022-11-21 13:45:20,787 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2944 conditions, 1622 events. 546/1622 cut-off events. For 72/72 co-relation queries the response was YES. Maximal size of possible extension queue 90. Compared 11889 event pairs, 141 based on Foata normal form. 0/1426 useless extension candidates. Maximal degree in co-relation 2873. Up to 479 conditions per place. [2022-11-21 13:45:20,796 INFO L137 encePairwiseOnDemand]: 128/138 looper letters, 36 selfloop transitions, 10 changer transitions 3/160 dead transitions. [2022-11-21 13:45:20,797 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 145 places, 160 transitions, 472 flow [2022-11-21 13:45:20,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-21 13:45:20,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-11-21 13:45:20,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 508 transitions. [2022-11-21 13:45:20,799 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9202898550724637 [2022-11-21 13:45:20,799 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 508 transitions. [2022-11-21 13:45:20,800 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 508 transitions. [2022-11-21 13:45:20,800 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 13:45:20,800 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 508 transitions. [2022-11-21 13:45:20,802 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 13:45:20,805 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 138.0) internal successors, (690), 5 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 13:45:20,805 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 138.0) internal successors, (690), 5 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 13:45:20,806 INFO L175 Difference]: Start difference. First operand has 142 places, 135 transitions, 306 flow. Second operand 4 states and 508 transitions. [2022-11-21 13:45:20,807 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 145 places, 160 transitions, 472 flow [2022-11-21 13:45:20,811 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 144 places, 160 transitions, 468 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-21 13:45:20,815 INFO L231 Difference]: Finished difference. Result has 146 places, 138 transitions, 362 flow [2022-11-21 13:45:20,816 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=138, PETRI_DIFFERENCE_MINUEND_FLOW=302, PETRI_DIFFERENCE_MINUEND_PLACES=141, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=135, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=125, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=362, PETRI_PLACES=146, PETRI_TRANSITIONS=138} [2022-11-21 13:45:20,817 INFO L288 CegarLoopForPetriNet]: 143 programPoint places, 3 predicate places. [2022-11-21 13:45:20,817 INFO L495 AbstractCegarLoop]: Abstraction has has 146 places, 138 transitions, 362 flow [2022-11-21 13:45:20,818 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 116.25) internal successors, (465), 4 states have internal predecessors, (465), 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 13:45:20,818 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 13:45:20,818 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] [2022-11-21 13:45:20,819 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-21 13:45:20,819 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-11-21 13:45:20,822 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 13:45:20,822 INFO L85 PathProgramCache]: Analyzing trace with hash 804471494, now seen corresponding path program 1 times [2022-11-21 13:45:20,823 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 13:45:20,823 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1325249710] [2022-11-21 13:45:20,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 13:45:20,825 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 13:45:20,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:45:21,171 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 13:45:21,172 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 13:45:21,172 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1325249710] [2022-11-21 13:45:21,172 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1325249710] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 13:45:21,173 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 13:45:21,173 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-21 13:45:21,174 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1494441306] [2022-11-21 13:45:21,174 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 13:45:21,175 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-21 13:45:21,175 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 13:45:21,176 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-21 13:45:21,176 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-21 13:45:21,178 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 114 out of 138 [2022-11-21 13:45:21,179 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 146 places, 138 transitions, 362 flow. Second operand has 4 states, 4 states have (on average 116.25) internal successors, (465), 4 states have internal predecessors, (465), 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 13:45:21,179 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 13:45:21,179 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 114 of 138 [2022-11-21 13:45:21,179 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 13:45:21,700 INFO L130 PetriNetUnfolder]: 394/1710 cut-off events. [2022-11-21 13:45:21,700 INFO L131 PetriNetUnfolder]: For 902/902 co-relation queries the response was YES. [2022-11-21 13:45:21,706 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2779 conditions, 1710 events. 394/1710 cut-off events. For 902/902 co-relation queries the response was YES. Maximal size of possible extension queue 69. Compared 13256 event pairs, 209 based on Foata normal form. 78/1692 useless extension candidates. Maximal degree in co-relation 2705. Up to 401 conditions per place. [2022-11-21 13:45:21,714 INFO L137 encePairwiseOnDemand]: 131/138 looper letters, 27 selfloop transitions, 4 changer transitions 0/142 dead transitions. [2022-11-21 13:45:21,714 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 146 places, 142 transitions, 406 flow [2022-11-21 13:45:21,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-21 13:45:21,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-11-21 13:45:21,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 490 transitions. [2022-11-21 13:45:21,717 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8876811594202898 [2022-11-21 13:45:21,717 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 490 transitions. [2022-11-21 13:45:21,717 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 490 transitions. [2022-11-21 13:45:21,718 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 13:45:21,718 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 490 transitions. [2022-11-21 13:45:21,720 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 122.5) internal successors, (490), 4 states have internal predecessors, (490), 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 13:45:21,721 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 138.0) internal successors, (690), 5 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 13:45:21,722 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 138.0) internal successors, (690), 5 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 13:45:21,722 INFO L175 Difference]: Start difference. First operand has 146 places, 138 transitions, 362 flow. Second operand 4 states and 490 transitions. [2022-11-21 13:45:21,722 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 146 places, 142 transitions, 406 flow [2022-11-21 13:45:21,727 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 143 places, 142 transitions, 388 flow, removed 3 selfloop flow, removed 3 redundant places. [2022-11-21 13:45:21,729 INFO L231 Difference]: Finished difference. Result has 143 places, 132 transitions, 310 flow [2022-11-21 13:45:21,730 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=138, PETRI_DIFFERENCE_MINUEND_FLOW=302, PETRI_DIFFERENCE_MINUEND_PLACES=140, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=132, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=128, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=310, PETRI_PLACES=143, PETRI_TRANSITIONS=132} [2022-11-21 13:45:21,731 INFO L288 CegarLoopForPetriNet]: 143 programPoint places, 0 predicate places. [2022-11-21 13:45:21,731 INFO L495 AbstractCegarLoop]: Abstraction has has 143 places, 132 transitions, 310 flow [2022-11-21 13:45:21,732 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 116.25) internal successors, (465), 4 states have internal predecessors, (465), 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 13:45:21,732 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 13:45:21,732 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, 1, 1, 1, 1, 1, 1] [2022-11-21 13:45:21,732 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-21 13:45:21,733 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-11-21 13:45:21,733 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 13:45:21,734 INFO L85 PathProgramCache]: Analyzing trace with hash 2120750546, now seen corresponding path program 1 times [2022-11-21 13:45:21,734 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 13:45:21,734 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1175390889] [2022-11-21 13:45:21,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 13:45:21,735 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 13:45:21,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:45:21,992 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 13:45:21,992 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 13:45:21,993 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1175390889] [2022-11-21 13:45:21,993 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1175390889] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 13:45:21,993 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 13:45:21,993 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-21 13:45:21,994 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [495642213] [2022-11-21 13:45:21,994 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 13:45:21,994 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-21 13:45:21,995 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 13:45:21,995 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-21 13:45:21,995 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-11-21 13:45:21,996 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 114 out of 138 [2022-11-21 13:45:21,997 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 143 places, 132 transitions, 310 flow. Second operand has 5 states, 5 states have (on average 116.4) internal successors, (582), 5 states have internal predecessors, (582), 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 13:45:21,998 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 13:45:21,998 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 114 of 138 [2022-11-21 13:45:21,998 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 13:45:22,477 INFO L130 PetriNetUnfolder]: 385/1515 cut-off events. [2022-11-21 13:45:22,477 INFO L131 PetriNetUnfolder]: For 527/527 co-relation queries the response was YES. [2022-11-21 13:45:22,483 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2497 conditions, 1515 events. 385/1515 cut-off events. For 527/527 co-relation queries the response was YES. Maximal size of possible extension queue 68. Compared 11142 event pairs, 163 based on Foata normal form. 12/1453 useless extension candidates. Maximal degree in co-relation 2424. Up to 269 conditions per place. [2022-11-21 13:45:22,485 INFO L137 encePairwiseOnDemand]: 131/138 looper letters, 0 selfloop transitions, 0 changer transitions 148/148 dead transitions. [2022-11-21 13:45:22,485 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 144 places, 148 transitions, 410 flow [2022-11-21 13:45:22,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-21 13:45:22,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-11-21 13:45:22,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 610 transitions. [2022-11-21 13:45:22,488 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8840579710144928 [2022-11-21 13:45:22,489 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 610 transitions. [2022-11-21 13:45:22,489 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 610 transitions. [2022-11-21 13:45:22,489 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 13:45:22,490 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 610 transitions. [2022-11-21 13:45:22,491 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 122.0) internal successors, (610), 5 states have internal predecessors, (610), 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 13:45:22,493 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 138.0) internal successors, (828), 6 states have internal predecessors, (828), 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 13:45:22,494 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 138.0) internal successors, (828), 6 states have internal predecessors, (828), 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 13:45:22,495 INFO L175 Difference]: Start difference. First operand has 143 places, 132 transitions, 310 flow. Second operand 5 states and 610 transitions. [2022-11-21 13:45:22,495 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 144 places, 148 transitions, 410 flow [2022-11-21 13:45:22,497 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 140 places, 148 transitions, 395 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-11-21 13:45:22,499 INFO L231 Difference]: Finished difference. Result has 140 places, 0 transitions, 0 flow [2022-11-21 13:45:22,499 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=138, PETRI_DIFFERENCE_MINUEND_FLOW=277, PETRI_DIFFERENCE_MINUEND_PLACES=136, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=129, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=129, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=0, PETRI_PLACES=140, PETRI_TRANSITIONS=0} [2022-11-21 13:45:22,500 INFO L288 CegarLoopForPetriNet]: 143 programPoint places, -3 predicate places. [2022-11-21 13:45:22,500 INFO L495 AbstractCegarLoop]: Abstraction has has 140 places, 0 transitions, 0 flow [2022-11-21 13:45:22,501 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 116.4) internal successors, (582), 5 states have internal predecessors, (582), 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 13:45:22,504 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 15 remaining) [2022-11-21 13:45:22,505 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 15 remaining) [2022-11-21 13:45:22,505 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 15 remaining) [2022-11-21 13:45:22,505 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 15 remaining) [2022-11-21 13:45:22,506 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 15 remaining) [2022-11-21 13:45:22,506 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 15 remaining) [2022-11-21 13:45:22,506 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 15 remaining) [2022-11-21 13:45:22,507 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (7 of 15 remaining) [2022-11-21 13:45:22,507 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 15 remaining) [2022-11-21 13:45:22,507 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 15 remaining) [2022-11-21 13:45:22,507 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 15 remaining) [2022-11-21 13:45:22,508 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 15 remaining) [2022-11-21 13:45:22,508 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 15 remaining) [2022-11-21 13:45:22,508 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 15 remaining) [2022-11-21 13:45:22,509 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 15 remaining) [2022-11-21 13:45:22,509 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-21 13:45:22,509 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2022-11-21 13:45:22,516 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-21 13:45:22,516 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-21 13:45:22,523 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.11 01:45:22 BasicIcfg [2022-11-21 13:45:22,523 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-21 13:45:22,524 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-21 13:45:22,524 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-21 13:45:22,524 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-21 13:45:22,525 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 01:45:17" (3/4) ... [2022-11-21 13:45:22,528 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-21 13:45:22,534 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2022-11-21 13:45:22,535 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2022-11-21 13:45:22,535 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2022-11-21 13:45:22,541 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 36 nodes and edges [2022-11-21 13:45:22,542 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2022-11-21 13:45:22,542 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-11-21 13:45:22,543 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-21 13:45:22,595 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac19910f-dfd8-4238-8ec6-8ce12d41a809/bin/uautomizer-vX5HgA9Q3a/witness.graphml [2022-11-21 13:45:22,595 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-21 13:45:22,596 INFO L158 Benchmark]: Toolchain (without parser) took 7606.67ms. Allocated memory was 167.8MB in the beginning and 260.0MB in the end (delta: 92.3MB). Free memory was 139.6MB in the beginning and 120.2MB in the end (delta: 19.4MB). Peak memory consumption was 112.7MB. Max. memory is 16.1GB. [2022-11-21 13:45:22,597 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 123.7MB. Free memory is still 90.3MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-21 13:45:22,597 INFO L158 Benchmark]: CACSL2BoogieTranslator took 757.03ms. Allocated memory is still 167.8MB. Free memory was 139.1MB in the beginning and 115.0MB in the end (delta: 24.0MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2022-11-21 13:45:22,598 INFO L158 Benchmark]: Boogie Procedure Inliner took 113.49ms. Allocated memory is still 167.8MB. Free memory was 115.0MB in the beginning and 112.3MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-21 13:45:22,598 INFO L158 Benchmark]: Boogie Preprocessor took 89.33ms. Allocated memory is still 167.8MB. Free memory was 112.3MB in the beginning and 110.3MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-21 13:45:22,599 INFO L158 Benchmark]: RCFGBuilder took 1444.43ms. Allocated memory is still 167.8MB. Free memory was 110.2MB in the beginning and 87.0MB in the end (delta: 23.1MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2022-11-21 13:45:22,599 INFO L158 Benchmark]: TraceAbstraction took 5122.18ms. Allocated memory was 167.8MB in the beginning and 260.0MB in the end (delta: 92.3MB). Free memory was 86.0MB in the beginning and 124.4MB in the end (delta: -38.4MB). Peak memory consumption was 82.1MB. Max. memory is 16.1GB. [2022-11-21 13:45:22,600 INFO L158 Benchmark]: Witness Printer took 71.76ms. Allocated memory is still 260.0MB. Free memory was 124.4MB in the beginning and 120.2MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-21 13:45:22,602 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 123.7MB. Free memory is still 90.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 757.03ms. Allocated memory is still 167.8MB. Free memory was 139.1MB in the beginning and 115.0MB in the end (delta: 24.0MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 113.49ms. Allocated memory is still 167.8MB. Free memory was 115.0MB in the beginning and 112.3MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 89.33ms. Allocated memory is still 167.8MB. Free memory was 112.3MB in the beginning and 110.3MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1444.43ms. Allocated memory is still 167.8MB. Free memory was 110.2MB in the beginning and 87.0MB in the end (delta: 23.1MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. * TraceAbstraction took 5122.18ms. Allocated memory was 167.8MB in the beginning and 260.0MB in the end (delta: 92.3MB). Free memory was 86.0MB in the beginning and 124.4MB in the end (delta: -38.4MB). Peak memory consumption was 82.1MB. Max. memory is 16.1GB. * Witness Printer took 71.76ms. Allocated memory is still 260.0MB. Free memory was 124.4MB in the beginning and 120.2MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 782]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 782]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 818]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 818]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 838]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 838]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 170 locations, 15 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 4.9s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 3.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 97 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 97 mSDsluCounter, 10 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 30 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 190 IncrementalHoareTripleChecker+Invalid, 220 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 30 mSolverCounterUnsat, 10 mSDtfsCounter, 190 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=362occurred in iteration=2, InterpolantAutomatonStates: 16, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.2s InterpolantComputationTime, 316 NumberOfCodeBlocks, 316 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 312 ConstructedInterpolants, 0 QuantifiedInterpolants, 872 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 6 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-11-21 13:45:22,630 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac19910f-dfd8-4238-8ec6-8ce12d41a809/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE