./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/weaver/test-semi1.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version e04fb08f 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_3211f355-6f15-4018-bd97-51b2028f45cc/bin/uautomizer-tPACEb0tL8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3211f355-6f15-4018-bd97-51b2028f45cc/bin/uautomizer-tPACEb0tL8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3211f355-6f15-4018-bd97-51b2028f45cc/bin/uautomizer-tPACEb0tL8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3211f355-6f15-4018-bd97-51b2028f45cc/bin/uautomizer-tPACEb0tL8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/test-semi1.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3211f355-6f15-4018-bd97-51b2028f45cc/bin/uautomizer-tPACEb0tL8/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3211f355-6f15-4018-bd97-51b2028f45cc/bin/uautomizer-tPACEb0tL8 --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 e1fb758430fdab5e598998cc874ea93afa2de5f622c2b42d836b77952562e01f --- 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-e04fb08 [2022-11-16 11:57:25,090 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 11:57:25,093 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 11:57:25,135 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 11:57:25,137 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 11:57:25,139 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 11:57:25,142 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 11:57:25,147 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 11:57:25,152 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 11:57:25,153 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 11:57:25,155 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 11:57:25,157 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 11:57:25,159 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 11:57:25,163 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 11:57:25,165 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 11:57:25,167 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 11:57:25,170 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 11:57:25,178 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 11:57:25,180 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 11:57:25,182 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 11:57:25,187 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 11:57:25,190 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 11:57:25,191 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 11:57:25,192 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 11:57:25,195 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 11:57:25,196 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 11:57:25,196 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 11:57:25,197 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 11:57:25,198 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 11:57:25,199 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 11:57:25,199 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 11:57:25,200 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 11:57:25,201 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 11:57:25,202 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 11:57:25,207 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 11:57:25,209 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 11:57:25,210 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 11:57:25,210 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 11:57:25,210 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 11:57:25,212 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 11:57:25,212 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 11:57:25,213 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3211f355-6f15-4018-bd97-51b2028f45cc/bin/uautomizer-tPACEb0tL8/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-11-16 11:57:25,272 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 11:57:25,276 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 11:57:25,276 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 11:57:25,277 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 11:57:25,278 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-16 11:57:25,278 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-16 11:57:25,279 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-16 11:57:25,279 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-16 11:57:25,279 INFO L138 SettingsManager]: * Use SBE=true [2022-11-16 11:57:25,280 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 11:57:25,281 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-16 11:57:25,281 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-16 11:57:25,282 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-16 11:57:25,282 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-16 11:57:25,282 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 11:57:25,282 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-16 11:57:25,283 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-16 11:57:25,283 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-16 11:57:25,283 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-16 11:57:25,283 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-16 11:57:25,284 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 11:57:25,284 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 11:57:25,284 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-16 11:57:25,285 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 11:57:25,285 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-16 11:57:25,285 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-16 11:57:25,287 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 11:57:25,287 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 11:57:25,288 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-16 11:57:25,293 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-16 11:57:25,293 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-16 11:57:25,294 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-16 11:57:25,294 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-16 11:57:25,294 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-16 11:57:25,295 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-16 11:57:25,295 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_3211f355-6f15-4018-bd97-51b2028f45cc/bin/uautomizer-tPACEb0tL8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3211f355-6f15-4018-bd97-51b2028f45cc/bin/uautomizer-tPACEb0tL8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e1fb758430fdab5e598998cc874ea93afa2de5f622c2b42d836b77952562e01f [2022-11-16 11:57:25,574 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 11:57:25,624 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 11:57:25,627 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 11:57:25,629 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 11:57:25,630 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 11:57:25,632 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3211f355-6f15-4018-bd97-51b2028f45cc/bin/uautomizer-tPACEb0tL8/../../sv-benchmarks/c/weaver/test-semi1.wvr.c [2022-11-16 11:57:25,746 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3211f355-6f15-4018-bd97-51b2028f45cc/bin/uautomizer-tPACEb0tL8/data/c7a5643df/ee3c80448d7d40f8ac5e16d6c33528bd/FLAGa406c85e3 [2022-11-16 11:57:26,300 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 11:57:26,301 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3211f355-6f15-4018-bd97-51b2028f45cc/sv-benchmarks/c/weaver/test-semi1.wvr.c [2022-11-16 11:57:26,309 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3211f355-6f15-4018-bd97-51b2028f45cc/bin/uautomizer-tPACEb0tL8/data/c7a5643df/ee3c80448d7d40f8ac5e16d6c33528bd/FLAGa406c85e3 [2022-11-16 11:57:26,654 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3211f355-6f15-4018-bd97-51b2028f45cc/bin/uautomizer-tPACEb0tL8/data/c7a5643df/ee3c80448d7d40f8ac5e16d6c33528bd [2022-11-16 11:57:26,657 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 11:57:26,659 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 11:57:26,661 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 11:57:26,661 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 11:57:26,665 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 11:57:26,666 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:57:26" (1/1) ... [2022-11-16 11:57:26,667 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@fff6ad2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:57:26, skipping insertion in model container [2022-11-16 11:57:26,668 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:57:26" (1/1) ... [2022-11-16 11:57:26,677 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 11:57:26,696 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 11:57:26,914 WARN L229 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_3211f355-6f15-4018-bd97-51b2028f45cc/sv-benchmarks/c/weaver/test-semi1.wvr.c[1979,1992] [2022-11-16 11:57:26,916 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 11:57:26,930 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 11:57:26,949 WARN L229 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_3211f355-6f15-4018-bd97-51b2028f45cc/sv-benchmarks/c/weaver/test-semi1.wvr.c[1979,1992] [2022-11-16 11:57:26,950 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 11:57:26,966 INFO L208 MainTranslator]: Completed translation [2022-11-16 11:57:26,967 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:57:26 WrapperNode [2022-11-16 11:57:26,967 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 11:57:26,968 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 11:57:26,969 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 11:57:26,969 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 11:57:26,980 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:57:26" (1/1) ... [2022-11-16 11:57:26,995 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:57:26" (1/1) ... [2022-11-16 11:57:27,045 INFO L138 Inliner]: procedures = 21, calls = 26, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 73 [2022-11-16 11:57:27,045 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 11:57:27,046 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 11:57:27,047 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 11:57:27,047 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 11:57:27,059 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:57:26" (1/1) ... [2022-11-16 11:57:27,059 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:57:26" (1/1) ... [2022-11-16 11:57:27,076 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:57:26" (1/1) ... [2022-11-16 11:57:27,077 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:57:26" (1/1) ... [2022-11-16 11:57:27,085 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:57:26" (1/1) ... [2022-11-16 11:57:27,100 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:57:26" (1/1) ... [2022-11-16 11:57:27,102 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:57:26" (1/1) ... [2022-11-16 11:57:27,103 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:57:26" (1/1) ... [2022-11-16 11:57:27,106 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 11:57:27,107 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 11:57:27,107 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 11:57:27,107 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 11:57:27,109 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:57:26" (1/1) ... [2022-11-16 11:57:27,123 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 11:57:27,137 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3211f355-6f15-4018-bd97-51b2028f45cc/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:57:27,157 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3211f355-6f15-4018-bd97-51b2028f45cc/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-16 11:57:27,192 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3211f355-6f15-4018-bd97-51b2028f45cc/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-16 11:57:27,215 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-16 11:57:27,215 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-11-16 11:57:27,216 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-11-16 11:57:27,216 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-11-16 11:57:27,216 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-11-16 11:57:27,216 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-16 11:57:27,219 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-16 11:57:27,219 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-16 11:57:27,219 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-16 11:57:27,219 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-16 11:57:27,220 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 11:57:27,220 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 11:57:27,220 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-16 11:57:27,220 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-16 11:57:27,222 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-16 11:57:27,388 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 11:57:27,390 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 11:57:27,601 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 11:57:27,687 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 11:57:27,687 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-16 11:57:27,690 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:57:27 BoogieIcfgContainer [2022-11-16 11:57:27,690 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 11:57:27,692 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-16 11:57:27,692 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-16 11:57:27,697 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-16 11:57:27,697 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 11:57:26" (1/3) ... [2022-11-16 11:57:27,698 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@699cd101 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 11:57:27, skipping insertion in model container [2022-11-16 11:57:27,698 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:57:26" (2/3) ... [2022-11-16 11:57:27,699 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@699cd101 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 11:57:27, skipping insertion in model container [2022-11-16 11:57:27,699 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:57:27" (3/3) ... [2022-11-16 11:57:27,701 INFO L112 eAbstractionObserver]: Analyzing ICFG test-semi1.wvr.c [2022-11-16 11:57:27,712 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-16 11:57:27,736 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-16 11:57:27,737 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2022-11-16 11:57:27,737 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-16 11:57:27,862 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-11-16 11:57:27,901 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 89 places, 85 transitions, 186 flow [2022-11-16 11:57:27,949 INFO L130 PetriNetUnfolder]: 3/83 cut-off events. [2022-11-16 11:57:27,949 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-11-16 11:57:27,954 INFO L83 FinitePrefix]: Finished finitePrefix Result has 92 conditions, 83 events. 3/83 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 27 event pairs, 0 based on Foata normal form. 0/76 useless extension candidates. Maximal degree in co-relation 54. Up to 2 conditions per place. [2022-11-16 11:57:27,954 INFO L82 GeneralOperation]: Start removeDead. Operand has 89 places, 85 transitions, 186 flow [2022-11-16 11:57:27,959 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 69 places, 64 transitions, 137 flow [2022-11-16 11:57:27,970 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-16 11:57:27,978 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;@4699e1ea, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 11:57:27,978 INFO L358 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2022-11-16 11:57:27,995 INFO L130 PetriNetUnfolder]: 2/42 cut-off events. [2022-11-16 11:57:27,995 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-16 11:57:27,995 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:57:27,996 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] [2022-11-16 11:57:27,997 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-16 11:57:28,002 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:57:28,003 INFO L85 PathProgramCache]: Analyzing trace with hash 707026395, now seen corresponding path program 1 times [2022-11-16 11:57:28,013 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:57:28,014 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [580785156] [2022-11-16 11:57:28,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:57:28,015 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:57:28,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:57:28,603 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:57:28,604 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:57:28,604 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [580785156] [2022-11-16 11:57:28,605 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [580785156] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:57:28,605 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:57:28,606 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-16 11:57:28,607 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [39730383] [2022-11-16 11:57:28,608 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:57:28,620 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-16 11:57:28,621 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:57:28,672 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-16 11:57:28,674 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-16 11:57:28,679 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 54 out of 85 [2022-11-16 11:57:28,683 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 69 places, 64 transitions, 137 flow. Second operand has 5 states, 5 states have (on average 56.4) internal successors, (282), 5 states have internal predecessors, (282), 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) [2022-11-16 11:57:28,683 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:57:28,683 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 54 of 85 [2022-11-16 11:57:28,684 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:57:28,800 INFO L130 PetriNetUnfolder]: 6/80 cut-off events. [2022-11-16 11:57:28,801 INFO L131 PetriNetUnfolder]: For 13/18 co-relation queries the response was YES. [2022-11-16 11:57:28,802 INFO L83 FinitePrefix]: Finished finitePrefix Result has 126 conditions, 80 events. 6/80 cut-off events. For 13/18 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 92 event pairs, 3 based on Foata normal form. 3/74 useless extension candidates. Maximal degree in co-relation 50. Up to 15 conditions per place. [2022-11-16 11:57:28,803 INFO L137 encePairwiseOnDemand]: 74/85 looper letters, 12 selfloop transitions, 6 changer transitions 3/62 dead transitions. [2022-11-16 11:57:28,804 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 71 places, 62 transitions, 178 flow [2022-11-16 11:57:28,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 11:57:28,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-11-16 11:57:28,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 297 transitions. [2022-11-16 11:57:28,821 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6988235294117647 [2022-11-16 11:57:28,822 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 297 transitions. [2022-11-16 11:57:28,823 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 297 transitions. [2022-11-16 11:57:28,824 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:57:28,827 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 297 transitions. [2022-11-16 11:57:28,831 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 59.4) internal successors, (297), 5 states have internal predecessors, (297), 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) [2022-11-16 11:57:28,837 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 85.0) internal successors, (510), 6 states have internal predecessors, (510), 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) [2022-11-16 11:57:28,838 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 85.0) internal successors, (510), 6 states have internal predecessors, (510), 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) [2022-11-16 11:57:28,841 INFO L175 Difference]: Start difference. First operand has 69 places, 64 transitions, 137 flow. Second operand 5 states and 297 transitions. [2022-11-16 11:57:28,842 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 71 places, 62 transitions, 178 flow [2022-11-16 11:57:28,845 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 62 transitions, 172 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-11-16 11:57:28,849 INFO L231 Difference]: Finished difference. Result has 69 places, 58 transitions, 138 flow [2022-11-16 11:57:28,851 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=85, PETRI_DIFFERENCE_MINUEND_FLOW=124, PETRI_DIFFERENCE_MINUEND_PLACES=64, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=60, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=54, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=138, PETRI_PLACES=69, PETRI_TRANSITIONS=58} [2022-11-16 11:57:28,855 INFO L288 CegarLoopForPetriNet]: 69 programPoint places, 0 predicate places. [2022-11-16 11:57:28,856 INFO L495 AbstractCegarLoop]: Abstraction has has 69 places, 58 transitions, 138 flow [2022-11-16 11:57:28,856 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 56.4) internal successors, (282), 5 states have internal predecessors, (282), 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) [2022-11-16 11:57:28,856 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:57:28,857 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] [2022-11-16 11:57:28,857 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-16 11:57:28,857 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-16 11:57:28,858 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:57:28,858 INFO L85 PathProgramCache]: Analyzing trace with hash 707026396, now seen corresponding path program 1 times [2022-11-16 11:57:28,859 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:57:28,859 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [195981423] [2022-11-16 11:57:28,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:57:28,860 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:57:28,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:57:28,988 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:57:28,988 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:57:28,988 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [195981423] [2022-11-16 11:57:28,989 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [195981423] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:57:28,989 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:57:28,989 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 11:57:28,990 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [207158028] [2022-11-16 11:57:28,990 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:57:28,991 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 11:57:28,992 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:57:28,992 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 11:57:28,993 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-16 11:57:28,994 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 85 [2022-11-16 11:57:28,995 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 69 places, 58 transitions, 138 flow. Second operand has 4 states, 4 states have (on average 65.25) internal successors, (261), 4 states have internal predecessors, (261), 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) [2022-11-16 11:57:28,995 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:57:28,995 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 85 [2022-11-16 11:57:28,995 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:57:29,051 INFO L130 PetriNetUnfolder]: 4/71 cut-off events. [2022-11-16 11:57:29,052 INFO L131 PetriNetUnfolder]: For 10/12 co-relation queries the response was YES. [2022-11-16 11:57:29,052 INFO L83 FinitePrefix]: Finished finitePrefix Result has 115 conditions, 71 events. 4/71 cut-off events. For 10/12 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 60 event pairs, 4 based on Foata normal form. 3/71 useless extension candidates. Maximal degree in co-relation 39. Up to 19 conditions per place. [2022-11-16 11:57:29,053 INFO L137 encePairwiseOnDemand]: 81/85 looper letters, 9 selfloop transitions, 3 changer transitions 3/57 dead transitions. [2022-11-16 11:57:29,053 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 57 transitions, 162 flow [2022-11-16 11:57:29,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 11:57:29,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-11-16 11:57:29,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 266 transitions. [2022-11-16 11:57:29,056 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7823529411764706 [2022-11-16 11:57:29,056 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 266 transitions. [2022-11-16 11:57:29,056 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 266 transitions. [2022-11-16 11:57:29,056 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:57:29,057 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 266 transitions. [2022-11-16 11:57:29,058 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 66.5) internal successors, (266), 4 states have internal predecessors, (266), 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) [2022-11-16 11:57:29,059 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 85.0) internal successors, (425), 5 states have internal predecessors, (425), 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) [2022-11-16 11:57:29,060 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 85.0) internal successors, (425), 5 states have internal predecessors, (425), 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) [2022-11-16 11:57:29,060 INFO L175 Difference]: Start difference. First operand has 69 places, 58 transitions, 138 flow. Second operand 4 states and 266 transitions. [2022-11-16 11:57:29,060 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 57 transitions, 162 flow [2022-11-16 11:57:29,061 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 65 places, 57 transitions, 150 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-11-16 11:57:29,063 INFO L231 Difference]: Finished difference. Result has 65 places, 54 transitions, 124 flow [2022-11-16 11:57:29,063 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=85, PETRI_DIFFERENCE_MINUEND_FLOW=124, PETRI_DIFFERENCE_MINUEND_PLACES=62, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=57, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=54, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=124, PETRI_PLACES=65, PETRI_TRANSITIONS=54} [2022-11-16 11:57:29,064 INFO L288 CegarLoopForPetriNet]: 69 programPoint places, -4 predicate places. [2022-11-16 11:57:29,064 INFO L495 AbstractCegarLoop]: Abstraction has has 65 places, 54 transitions, 124 flow [2022-11-16 11:57:29,065 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 65.25) internal successors, (261), 4 states have internal predecessors, (261), 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) [2022-11-16 11:57:29,065 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:57:29,065 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] [2022-11-16 11:57:29,065 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-16 11:57:29,066 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-16 11:57:29,066 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:57:29,066 INFO L85 PathProgramCache]: Analyzing trace with hash -2116414510, now seen corresponding path program 1 times [2022-11-16 11:57:29,067 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:57:29,067 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1384261178] [2022-11-16 11:57:29,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:57:29,067 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:57:29,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:57:29,185 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:57:29,189 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:57:29,189 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1384261178] [2022-11-16 11:57:29,192 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1384261178] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:57:29,192 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:57:29,193 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 11:57:29,193 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1096411658] [2022-11-16 11:57:29,193 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:57:29,194 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:57:29,194 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:57:29,196 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:57:29,196 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:57:29,197 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 66 out of 85 [2022-11-16 11:57:29,199 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 65 places, 54 transitions, 124 flow. Second operand has 3 states, 3 states have (on average 68.66666666666667) internal successors, (206), 3 states have internal predecessors, (206), 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) [2022-11-16 11:57:29,199 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:57:29,199 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 66 of 85 [2022-11-16 11:57:29,200 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:57:29,246 INFO L130 PetriNetUnfolder]: 1/58 cut-off events. [2022-11-16 11:57:29,246 INFO L131 PetriNetUnfolder]: For 5/5 co-relation queries the response was YES. [2022-11-16 11:57:29,248 INFO L83 FinitePrefix]: Finished finitePrefix Result has 83 conditions, 58 events. 1/58 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 13 event pairs, 0 based on Foata normal form. 2/60 useless extension candidates. Maximal degree in co-relation 54. Up to 6 conditions per place. [2022-11-16 11:57:29,249 INFO L137 encePairwiseOnDemand]: 81/85 looper letters, 0 selfloop transitions, 0 changer transitions 54/54 dead transitions. [2022-11-16 11:57:29,249 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 54 transitions, 142 flow [2022-11-16 11:57:29,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:57:29,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 11:57:29,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 208 transitions. [2022-11-16 11:57:29,257 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8156862745098039 [2022-11-16 11:57:29,259 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 208 transitions. [2022-11-16 11:57:29,259 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 208 transitions. [2022-11-16 11:57:29,260 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:57:29,260 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 208 transitions. [2022-11-16 11:57:29,261 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 69.33333333333333) internal successors, (208), 3 states have internal predecessors, (208), 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) [2022-11-16 11:57:29,264 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 85.0) internal successors, (340), 4 states have internal predecessors, (340), 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) [2022-11-16 11:57:29,267 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 85.0) internal successors, (340), 4 states have internal predecessors, (340), 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) [2022-11-16 11:57:29,268 INFO L175 Difference]: Start difference. First operand has 65 places, 54 transitions, 124 flow. Second operand 3 states and 208 transitions. [2022-11-16 11:57:29,268 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 54 transitions, 142 flow [2022-11-16 11:57:29,269 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 54 transitions, 132 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-11-16 11:57:29,270 INFO L231 Difference]: Finished difference. Result has 59 places, 0 transitions, 0 flow [2022-11-16 11:57:29,271 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=85, PETRI_DIFFERENCE_MINUEND_FLOW=110, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=53, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=53, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=59, PETRI_TRANSITIONS=0} [2022-11-16 11:57:29,272 INFO L288 CegarLoopForPetriNet]: 69 programPoint places, -10 predicate places. [2022-11-16 11:57:29,273 INFO L495 AbstractCegarLoop]: Abstraction has has 59 places, 0 transitions, 0 flow [2022-11-16 11:57:29,273 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 68.66666666666667) internal successors, (206), 3 states have internal predecessors, (206), 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) [2022-11-16 11:57:29,276 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 10 remaining) [2022-11-16 11:57:29,277 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 10 remaining) [2022-11-16 11:57:29,277 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 10 remaining) [2022-11-16 11:57:29,278 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 10 remaining) [2022-11-16 11:57:29,278 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (5 of 10 remaining) [2022-11-16 11:57:29,279 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 10 remaining) [2022-11-16 11:57:29,279 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 10 remaining) [2022-11-16 11:57:29,280 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 10 remaining) [2022-11-16 11:57:29,285 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 10 remaining) [2022-11-16 11:57:29,285 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 10 remaining) [2022-11-16 11:57:29,286 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-16 11:57:29,286 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2022-11-16 11:57:29,294 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-16 11:57:29,295 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-16 11:57:29,303 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.11 11:57:29 BasicIcfg [2022-11-16 11:57:29,303 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-16 11:57:29,304 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-16 11:57:29,305 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-16 11:57:29,305 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-16 11:57:29,306 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:57:27" (3/4) ... [2022-11-16 11:57:29,308 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-16 11:57:29,314 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2022-11-16 11:57:29,314 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2022-11-16 11:57:29,320 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 18 nodes and edges [2022-11-16 11:57:29,321 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-11-16 11:57:29,321 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-16 11:57:29,321 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-16 11:57:29,353 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3211f355-6f15-4018-bd97-51b2028f45cc/bin/uautomizer-tPACEb0tL8/witness.graphml [2022-11-16 11:57:29,354 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-16 11:57:29,354 INFO L158 Benchmark]: Toolchain (without parser) took 2695.46ms. Allocated memory was 113.2MB in the beginning and 144.7MB in the end (delta: 31.5MB). Free memory was 68.5MB in the beginning and 63.4MB in the end (delta: 5.1MB). Peak memory consumption was 35.7MB. Max. memory is 16.1GB. [2022-11-16 11:57:29,355 INFO L158 Benchmark]: CDTParser took 0.38ms. Allocated memory is still 113.2MB. Free memory is still 84.8MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 11:57:29,355 INFO L158 Benchmark]: CACSL2BoogieTranslator took 306.77ms. Allocated memory is still 113.2MB. Free memory was 68.3MB in the beginning and 87.5MB in the end (delta: -19.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-16 11:57:29,356 INFO L158 Benchmark]: Boogie Procedure Inliner took 77.03ms. Allocated memory is still 113.2MB. Free memory was 87.5MB in the beginning and 85.7MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-16 11:57:29,356 INFO L158 Benchmark]: Boogie Preprocessor took 59.82ms. Allocated memory is still 113.2MB. Free memory was 85.7MB in the beginning and 84.5MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-16 11:57:29,357 INFO L158 Benchmark]: RCFGBuilder took 583.18ms. Allocated memory is still 113.2MB. Free memory was 84.5MB in the beginning and 68.6MB in the end (delta: 15.9MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-11-16 11:57:29,357 INFO L158 Benchmark]: TraceAbstraction took 1611.83ms. Allocated memory was 113.2MB in the beginning and 144.7MB in the end (delta: 31.5MB). Free memory was 68.2MB in the beginning and 65.5MB in the end (delta: 2.6MB). Peak memory consumption was 35.6MB. Max. memory is 16.1GB. [2022-11-16 11:57:29,358 INFO L158 Benchmark]: Witness Printer took 49.26ms. Allocated memory is still 144.7MB. Free memory was 65.5MB in the beginning and 63.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-16 11:57:29,360 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.38ms. Allocated memory is still 113.2MB. Free memory is still 84.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 306.77ms. Allocated memory is still 113.2MB. Free memory was 68.3MB in the beginning and 87.5MB in the end (delta: -19.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 77.03ms. Allocated memory is still 113.2MB. Free memory was 87.5MB in the beginning and 85.7MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 59.82ms. Allocated memory is still 113.2MB. Free memory was 85.7MB in the beginning and 84.5MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 583.18ms. Allocated memory is still 113.2MB. Free memory was 84.5MB in the beginning and 68.6MB in the end (delta: 15.9MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 1611.83ms. Allocated memory was 113.2MB in the beginning and 144.7MB in the end (delta: 31.5MB). Free memory was 68.2MB in the beginning and 65.5MB in the end (delta: 2.6MB). Peak memory consumption was 35.6MB. Max. memory is 16.1GB. * Witness Printer took 49.26ms. Allocated memory is still 144.7MB. Free memory was 65.5MB in the beginning and 63.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 42]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 42]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 51]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 51]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 97 locations, 10 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 1.4s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 26 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 26 mSDsluCounter, 18 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2 mSDsCounter, 9 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 62 IncrementalHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 9 mSolverCounterUnsat, 16 mSDtfsCounter, 62 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=138occurred in iteration=1, InterpolantAutomatonStates: 12, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 124 NumberOfCodeBlocks, 124 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 121 ConstructedInterpolants, 0 QuantifiedInterpolants, 256 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-11-16 11:57:29,376 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3211f355-6f15-4018-bd97-51b2028f45cc/bin/uautomizer-tPACEb0tL8/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