./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/goblint-regression/13-privatized_25-struct_nr_true.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 8393723b 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_9458783c-8270-4361-b850-ec1a0ec65600/bin/uautomizer-TMbwUNV5ro/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9458783c-8270-4361-b850-ec1a0ec65600/bin/uautomizer-TMbwUNV5ro/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9458783c-8270-4361-b850-ec1a0ec65600/bin/uautomizer-TMbwUNV5ro/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9458783c-8270-4361-b850-ec1a0ec65600/bin/uautomizer-TMbwUNV5ro/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/13-privatized_25-struct_nr_true.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9458783c-8270-4361-b850-ec1a0ec65600/bin/uautomizer-TMbwUNV5ro/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9458783c-8270-4361-b850-ec1a0ec65600/bin/uautomizer-TMbwUNV5ro --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 4017723c7e4b1f7c431c7e7a6ea6ca9df8ac56fc590cd03021a11577cb455eff --- 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-8393723 [2022-11-18 18:41:53,036 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-18 18:41:53,039 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-18 18:41:53,095 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-18 18:41:53,095 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-18 18:41:53,097 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-18 18:41:53,103 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-18 18:41:53,105 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-18 18:41:53,108 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-18 18:41:53,111 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-18 18:41:53,112 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-18 18:41:53,114 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-18 18:41:53,115 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-18 18:41:53,116 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-18 18:41:53,118 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-18 18:41:53,121 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-18 18:41:53,122 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-18 18:41:53,124 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-18 18:41:53,130 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-18 18:41:53,135 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-18 18:41:53,137 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-18 18:41:53,144 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-18 18:41:53,146 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-18 18:41:53,147 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-18 18:41:53,152 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-18 18:41:53,152 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-18 18:41:53,153 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-18 18:41:53,164 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-18 18:41:53,166 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-18 18:41:53,167 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-18 18:41:53,168 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-18 18:41:53,169 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-18 18:41:53,172 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-18 18:41:53,174 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-18 18:41:53,176 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-18 18:41:53,176 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-18 18:41:53,179 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-18 18:41:53,180 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-18 18:41:53,180 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-18 18:41:53,181 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-18 18:41:53,182 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-18 18:41:53,184 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9458783c-8270-4361-b850-ec1a0ec65600/bin/uautomizer-TMbwUNV5ro/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-11-18 18:41:53,230 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-18 18:41:53,233 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-18 18:41:53,234 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-18 18:41:53,235 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-18 18:41:53,236 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-18 18:41:53,236 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-18 18:41:53,237 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-18 18:41:53,237 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-18 18:41:53,238 INFO L138 SettingsManager]: * Use SBE=true [2022-11-18 18:41:53,238 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-18 18:41:53,240 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-18 18:41:53,240 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-18 18:41:53,240 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-18 18:41:53,241 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-18 18:41:53,241 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-18 18:41:53,241 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-18 18:41:53,241 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-18 18:41:53,242 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-18 18:41:53,242 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-18 18:41:53,242 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-18 18:41:53,243 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-18 18:41:53,243 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-18 18:41:53,243 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-18 18:41:53,244 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-18 18:41:53,244 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-18 18:41:53,244 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-18 18:41:53,246 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 18:41:53,247 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-18 18:41:53,247 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-18 18:41:53,247 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-18 18:41:53,248 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-18 18:41:53,248 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-18 18:41:53,248 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-18 18:41:53,249 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-18 18:41:53,249 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-18 18:41:53,249 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_9458783c-8270-4361-b850-ec1a0ec65600/bin/uautomizer-TMbwUNV5ro/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9458783c-8270-4361-b850-ec1a0ec65600/bin/uautomizer-TMbwUNV5ro Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4017723c7e4b1f7c431c7e7a6ea6ca9df8ac56fc590cd03021a11577cb455eff [2022-11-18 18:41:53,603 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-18 18:41:53,630 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-18 18:41:53,633 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-18 18:41:53,635 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-18 18:41:53,636 INFO L275 PluginConnector]: CDTParser initialized [2022-11-18 18:41:53,638 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9458783c-8270-4361-b850-ec1a0ec65600/bin/uautomizer-TMbwUNV5ro/../../sv-benchmarks/c/goblint-regression/13-privatized_25-struct_nr_true.i [2022-11-18 18:41:53,721 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9458783c-8270-4361-b850-ec1a0ec65600/bin/uautomizer-TMbwUNV5ro/data/166623375/76f0f54b29654a279b6f20cf28958da3/FLAG88592ff26 [2022-11-18 18:41:54,405 INFO L306 CDTParser]: Found 1 translation units. [2022-11-18 18:41:54,406 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9458783c-8270-4361-b850-ec1a0ec65600/sv-benchmarks/c/goblint-regression/13-privatized_25-struct_nr_true.i [2022-11-18 18:41:54,421 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9458783c-8270-4361-b850-ec1a0ec65600/bin/uautomizer-TMbwUNV5ro/data/166623375/76f0f54b29654a279b6f20cf28958da3/FLAG88592ff26 [2022-11-18 18:41:54,673 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9458783c-8270-4361-b850-ec1a0ec65600/bin/uautomizer-TMbwUNV5ro/data/166623375/76f0f54b29654a279b6f20cf28958da3 [2022-11-18 18:41:54,676 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-18 18:41:54,678 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-18 18:41:54,681 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-18 18:41:54,681 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-18 18:41:54,692 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-18 18:41:54,694 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 06:41:54" (1/1) ... [2022-11-18 18:41:54,695 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3e297ea5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:41:54, skipping insertion in model container [2022-11-18 18:41:54,698 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 06:41:54" (1/1) ... [2022-11-18 18:41:54,708 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-18 18:41:54,749 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-18 18:41:55,010 WARN L234 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_9458783c-8270-4361-b850-ec1a0ec65600/sv-benchmarks/c/goblint-regression/13-privatized_25-struct_nr_true.i[1086,1099] [2022-11-18 18:41:55,193 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 18:41:55,213 INFO L203 MainTranslator]: Completed pre-run [2022-11-18 18:41:55,233 WARN L234 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_9458783c-8270-4361-b850-ec1a0ec65600/sv-benchmarks/c/goblint-regression/13-privatized_25-struct_nr_true.i[1086,1099] [2022-11-18 18:41:55,305 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 18:41:55,356 INFO L208 MainTranslator]: Completed translation [2022-11-18 18:41:55,357 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:41:55 WrapperNode [2022-11-18 18:41:55,357 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-18 18:41:55,360 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-18 18:41:55,360 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-18 18:41:55,360 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-18 18:41:55,371 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:41:55" (1/1) ... [2022-11-18 18:41:55,405 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:41:55" (1/1) ... [2022-11-18 18:41:55,447 INFO L138 Inliner]: procedures = 162, calls = 24, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 80 [2022-11-18 18:41:55,448 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-18 18:41:55,449 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-18 18:41:55,449 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-18 18:41:55,449 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-18 18:41:55,460 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:41:55" (1/1) ... [2022-11-18 18:41:55,461 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:41:55" (1/1) ... [2022-11-18 18:41:55,475 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:41:55" (1/1) ... [2022-11-18 18:41:55,480 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:41:55" (1/1) ... [2022-11-18 18:41:55,485 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:41:55" (1/1) ... [2022-11-18 18:41:55,500 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:41:55" (1/1) ... [2022-11-18 18:41:55,502 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:41:55" (1/1) ... [2022-11-18 18:41:55,503 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:41:55" (1/1) ... [2022-11-18 18:41:55,506 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-18 18:41:55,510 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-18 18:41:55,511 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-18 18:41:55,511 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-18 18:41:55,513 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:41:55" (1/1) ... [2022-11-18 18:41:55,522 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 18:41:55,534 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9458783c-8270-4361-b850-ec1a0ec65600/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 18:41:55,552 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9458783c-8270-4361-b850-ec1a0ec65600/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-18 18:41:55,568 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9458783c-8270-4361-b850-ec1a0ec65600/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-18 18:41:55,614 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-18 18:41:55,614 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-18 18:41:55,614 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-18 18:41:55,614 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-18 18:41:55,614 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-18 18:41:55,615 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-11-18 18:41:55,615 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-11-18 18:41:55,615 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-18 18:41:55,615 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-18 18:41:55,615 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-18 18:41:55,615 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-18 18:41:55,617 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-18 18:41:55,874 INFO L235 CfgBuilder]: Building ICFG [2022-11-18 18:41:55,893 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-18 18:41:56,304 INFO L276 CfgBuilder]: Performing block encoding [2022-11-18 18:41:56,313 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-18 18:41:56,314 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-18 18:41:56,316 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 06:41:56 BoogieIcfgContainer [2022-11-18 18:41:56,317 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-18 18:41:56,345 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-18 18:41:56,345 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-18 18:41:56,352 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-18 18:41:56,352 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 06:41:54" (1/3) ... [2022-11-18 18:41:56,353 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@630e54ad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 06:41:56, skipping insertion in model container [2022-11-18 18:41:56,354 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:41:55" (2/3) ... [2022-11-18 18:41:56,354 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@630e54ad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 06:41:56, skipping insertion in model container [2022-11-18 18:41:56,355 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 06:41:56" (3/3) ... [2022-11-18 18:41:56,363 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_25-struct_nr_true.i [2022-11-18 18:41:56,377 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-18 18:41:56,391 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-18 18:41:56,391 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2022-11-18 18:41:56,392 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-18 18:41:56,523 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-11-18 18:41:56,593 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 100 places, 100 transitions, 208 flow [2022-11-18 18:41:56,698 INFO L130 PetriNetUnfolder]: 4/99 cut-off events. [2022-11-18 18:41:56,698 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-18 18:41:56,706 INFO L83 FinitePrefix]: Finished finitePrefix Result has 104 conditions, 99 events. 4/99 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 87 event pairs, 0 based on Foata normal form. 0/91 useless extension candidates. Maximal degree in co-relation 57. Up to 2 conditions per place. [2022-11-18 18:41:56,706 INFO L82 GeneralOperation]: Start removeDead. Operand has 100 places, 100 transitions, 208 flow [2022-11-18 18:41:56,714 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 91 places, 91 transitions, 185 flow [2022-11-18 18:41:56,737 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-18 18:41:56,752 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;@381c36eb, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 18:41:56,752 INFO L358 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2022-11-18 18:41:56,783 INFO L130 PetriNetUnfolder]: 1/45 cut-off events. [2022-11-18 18:41:56,783 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-18 18:41:56,783 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 18:41:56,784 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] [2022-11-18 18:41:56,785 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 2 more)] === [2022-11-18 18:41:56,791 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:41:56,792 INFO L85 PathProgramCache]: Analyzing trace with hash 451819293, now seen corresponding path program 1 times [2022-11-18 18:41:56,805 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:41:56,805 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [482349187] [2022-11-18 18:41:56,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:41:56,806 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:41:57,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:41:57,287 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:41:57,288 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:41:57,288 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [482349187] [2022-11-18 18:41:57,289 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [482349187] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:41:57,289 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:41:57,290 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 18:41:57,291 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1049369479] [2022-11-18 18:41:57,292 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:41:57,309 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-18 18:41:57,309 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:41:57,358 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 18:41:57,361 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-18 18:41:57,370 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 73 out of 100 [2022-11-18 18:41:57,378 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 91 places, 91 transitions, 185 flow. Second operand has 4 states, 4 states have (on average 74.5) internal successors, (298), 4 states have internal predecessors, (298), 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) [2022-11-18 18:41:57,379 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 18:41:57,379 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 73 of 100 [2022-11-18 18:41:57,380 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 18:41:57,638 INFO L130 PetriNetUnfolder]: 45/281 cut-off events. [2022-11-18 18:41:57,642 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-18 18:41:57,649 INFO L83 FinitePrefix]: Finished finitePrefix Result has 399 conditions, 281 events. 45/281 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 1294 event pairs, 6 based on Foata normal form. 30/275 useless extension candidates. Maximal degree in co-relation 358. Up to 46 conditions per place. [2022-11-18 18:41:57,654 INFO L137 encePairwiseOnDemand]: 87/100 looper letters, 32 selfloop transitions, 10 changer transitions 6/109 dead transitions. [2022-11-18 18:41:57,654 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 91 places, 109 transitions, 309 flow [2022-11-18 18:41:57,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 18:41:57,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-11-18 18:41:57,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 422 transitions. [2022-11-18 18:41:57,687 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.844 [2022-11-18 18:41:57,689 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 422 transitions. [2022-11-18 18:41:57,690 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 422 transitions. [2022-11-18 18:41:57,696 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 18:41:57,699 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 422 transitions. [2022-11-18 18:41:57,705 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 84.4) internal successors, (422), 5 states have internal predecessors, (422), 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) [2022-11-18 18:41:57,718 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 100.0) internal successors, (600), 6 states have internal predecessors, (600), 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) [2022-11-18 18:41:57,719 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 100.0) internal successors, (600), 6 states have internal predecessors, (600), 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) [2022-11-18 18:41:57,721 INFO L175 Difference]: Start difference. First operand has 91 places, 91 transitions, 185 flow. Second operand 5 states and 422 transitions. [2022-11-18 18:41:57,723 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 91 places, 109 transitions, 309 flow [2022-11-18 18:41:57,734 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 90 places, 109 transitions, 308 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-18 18:41:57,740 INFO L231 Difference]: Finished difference. Result has 94 places, 87 transitions, 236 flow [2022-11-18 18:41:57,742 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=100, PETRI_DIFFERENCE_MINUEND_FLOW=168, PETRI_DIFFERENCE_MINUEND_PLACES=86, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=83, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=76, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=236, PETRI_PLACES=94, PETRI_TRANSITIONS=87} [2022-11-18 18:41:57,746 INFO L288 CegarLoopForPetriNet]: 91 programPoint places, 3 predicate places. [2022-11-18 18:41:57,746 INFO L495 AbstractCegarLoop]: Abstraction has has 94 places, 87 transitions, 236 flow [2022-11-18 18:41:57,747 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 74.5) internal successors, (298), 4 states have internal predecessors, (298), 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) [2022-11-18 18:41:57,747 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 18:41:57,747 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] [2022-11-18 18:41:57,748 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-18 18:41:57,748 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 2 more)] === [2022-11-18 18:41:57,749 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:41:57,749 INFO L85 PathProgramCache]: Analyzing trace with hash 1121496427, now seen corresponding path program 1 times [2022-11-18 18:41:57,749 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:41:57,749 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1445416670] [2022-11-18 18:41:57,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:41:57,750 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:41:57,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:41:57,892 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:41:57,892 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:41:57,892 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1445416670] [2022-11-18 18:41:57,893 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1445416670] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:41:57,893 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:41:57,893 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 18:41:57,894 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1285697501] [2022-11-18 18:41:57,894 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:41:57,895 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-18 18:41:57,896 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:41:57,896 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 18:41:57,897 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-18 18:41:57,897 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 73 out of 100 [2022-11-18 18:41:57,898 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 94 places, 87 transitions, 236 flow. Second operand has 4 states, 4 states have (on average 74.75) internal successors, (299), 4 states have internal predecessors, (299), 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) [2022-11-18 18:41:57,898 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 18:41:57,899 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 73 of 100 [2022-11-18 18:41:57,899 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 18:41:58,047 INFO L130 PetriNetUnfolder]: 48/327 cut-off events. [2022-11-18 18:41:58,048 INFO L131 PetriNetUnfolder]: For 114/122 co-relation queries the response was YES. [2022-11-18 18:41:58,050 INFO L83 FinitePrefix]: Finished finitePrefix Result has 576 conditions, 327 events. 48/327 cut-off events. For 114/122 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 1715 event pairs, 14 based on Foata normal form. 8/303 useless extension candidates. Maximal degree in co-relation 531. Up to 68 conditions per place. [2022-11-18 18:41:58,052 INFO L137 encePairwiseOnDemand]: 92/100 looper letters, 32 selfloop transitions, 14 changer transitions 0/107 dead transitions. [2022-11-18 18:41:58,052 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 93 places, 107 transitions, 406 flow [2022-11-18 18:41:58,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 18:41:58,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-11-18 18:41:58,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 403 transitions. [2022-11-18 18:41:58,054 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.806 [2022-11-18 18:41:58,055 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 403 transitions. [2022-11-18 18:41:58,055 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 403 transitions. [2022-11-18 18:41:58,055 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 18:41:58,056 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 403 transitions. [2022-11-18 18:41:58,057 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 80.6) internal successors, (403), 5 states have internal predecessors, (403), 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) [2022-11-18 18:41:58,059 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 100.0) internal successors, (600), 6 states have internal predecessors, (600), 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) [2022-11-18 18:41:58,060 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 100.0) internal successors, (600), 6 states have internal predecessors, (600), 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) [2022-11-18 18:41:58,060 INFO L175 Difference]: Start difference. First operand has 94 places, 87 transitions, 236 flow. Second operand 5 states and 403 transitions. [2022-11-18 18:41:58,060 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 93 places, 107 transitions, 406 flow [2022-11-18 18:41:58,063 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 93 places, 107 transitions, 406 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-18 18:41:58,066 INFO L231 Difference]: Finished difference. Result has 96 places, 95 transitions, 345 flow [2022-11-18 18:41:58,067 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=100, PETRI_DIFFERENCE_MINUEND_FLOW=236, PETRI_DIFFERENCE_MINUEND_PLACES=89, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=87, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=76, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=345, PETRI_PLACES=96, PETRI_TRANSITIONS=95} [2022-11-18 18:41:58,067 INFO L288 CegarLoopForPetriNet]: 91 programPoint places, 5 predicate places. [2022-11-18 18:41:58,068 INFO L495 AbstractCegarLoop]: Abstraction has has 96 places, 95 transitions, 345 flow [2022-11-18 18:41:58,068 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 74.75) internal successors, (299), 4 states have internal predecessors, (299), 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) [2022-11-18 18:41:58,068 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 18:41:58,069 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] [2022-11-18 18:41:58,069 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-18 18:41:58,069 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 2 more)] === [2022-11-18 18:41:58,070 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:41:58,070 INFO L85 PathProgramCache]: Analyzing trace with hash -94118931, now seen corresponding path program 1 times [2022-11-18 18:41:58,070 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:41:58,071 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1377881410] [2022-11-18 18:41:58,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:41:58,071 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:41:58,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:41:58,327 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:41:58,327 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:41:58,327 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1377881410] [2022-11-18 18:41:58,328 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1377881410] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:41:58,328 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:41:58,328 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 18:41:58,329 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1308754543] [2022-11-18 18:41:58,329 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:41:58,329 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 18:41:58,330 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:41:58,330 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 18:41:58,331 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-18 18:41:58,332 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 68 out of 100 [2022-11-18 18:41:58,333 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 96 places, 95 transitions, 345 flow. Second operand has 6 states, 6 states have (on average 70.0) internal successors, (420), 6 states have internal predecessors, (420), 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) [2022-11-18 18:41:58,333 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 18:41:58,333 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 68 of 100 [2022-11-18 18:41:58,333 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 18:41:58,580 INFO L130 PetriNetUnfolder]: 71/358 cut-off events. [2022-11-18 18:41:58,580 INFO L131 PetriNetUnfolder]: For 321/339 co-relation queries the response was YES. [2022-11-18 18:41:58,584 INFO L83 FinitePrefix]: Finished finitePrefix Result has 790 conditions, 358 events. 71/358 cut-off events. For 321/339 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 1935 event pairs, 4 based on Foata normal form. 8/335 useless extension candidates. Maximal degree in co-relation 740. Up to 44 conditions per place. [2022-11-18 18:41:58,586 INFO L137 encePairwiseOnDemand]: 90/100 looper letters, 40 selfloop transitions, 28 changer transitions 4/129 dead transitions. [2022-11-18 18:41:58,587 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 105 places, 129 transitions, 603 flow [2022-11-18 18:41:58,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-18 18:41:58,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-11-18 18:41:58,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 747 transitions. [2022-11-18 18:41:58,591 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.747 [2022-11-18 18:41:58,591 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 747 transitions. [2022-11-18 18:41:58,591 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 747 transitions. [2022-11-18 18:41:58,592 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 18:41:58,592 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 747 transitions. [2022-11-18 18:41:58,595 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 74.7) internal successors, (747), 10 states have internal predecessors, (747), 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) [2022-11-18 18:41:58,598 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 100.0) internal successors, (1100), 11 states have internal predecessors, (1100), 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) [2022-11-18 18:41:58,599 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 100.0) internal successors, (1100), 11 states have internal predecessors, (1100), 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) [2022-11-18 18:41:58,599 INFO L175 Difference]: Start difference. First operand has 96 places, 95 transitions, 345 flow. Second operand 10 states and 747 transitions. [2022-11-18 18:41:58,599 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 105 places, 129 transitions, 603 flow [2022-11-18 18:41:58,605 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 105 places, 129 transitions, 593 flow, removed 5 selfloop flow, removed 0 redundant places. [2022-11-18 18:41:58,608 INFO L231 Difference]: Finished difference. Result has 110 places, 104 transitions, 488 flow [2022-11-18 18:41:58,609 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=100, PETRI_DIFFERENCE_MINUEND_FLOW=337, PETRI_DIFFERENCE_MINUEND_PLACES=96, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=95, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=19, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=74, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=488, PETRI_PLACES=110, PETRI_TRANSITIONS=104} [2022-11-18 18:41:58,610 INFO L288 CegarLoopForPetriNet]: 91 programPoint places, 19 predicate places. [2022-11-18 18:41:58,610 INFO L495 AbstractCegarLoop]: Abstraction has has 110 places, 104 transitions, 488 flow [2022-11-18 18:41:58,610 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 70.0) internal successors, (420), 6 states have internal predecessors, (420), 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) [2022-11-18 18:41:58,611 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 18:41:58,611 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] [2022-11-18 18:41:58,611 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-18 18:41:58,611 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 2 more)] === [2022-11-18 18:41:58,612 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:41:58,612 INFO L85 PathProgramCache]: Analyzing trace with hash 1377280613, now seen corresponding path program 1 times [2022-11-18 18:41:58,612 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:41:58,613 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1816373561] [2022-11-18 18:41:58,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:41:58,613 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:41:58,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:41:58,751 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:41:58,752 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:41:58,752 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1816373561] [2022-11-18 18:41:58,752 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1816373561] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:41:58,752 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:41:58,753 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 18:41:58,753 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [779909367] [2022-11-18 18:41:58,753 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:41:58,754 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 18:41:58,754 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:41:58,754 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 18:41:58,755 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-18 18:41:58,756 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 68 out of 100 [2022-11-18 18:41:58,757 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 110 places, 104 transitions, 488 flow. Second operand has 6 states, 6 states have (on average 70.16666666666667) internal successors, (421), 6 states have internal predecessors, (421), 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) [2022-11-18 18:41:58,757 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 18:41:58,757 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 68 of 100 [2022-11-18 18:41:58,757 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 18:41:58,943 INFO L130 PetriNetUnfolder]: 60/356 cut-off events. [2022-11-18 18:41:58,943 INFO L131 PetriNetUnfolder]: For 547/562 co-relation queries the response was YES. [2022-11-18 18:41:58,944 INFO L83 FinitePrefix]: Finished finitePrefix Result has 844 conditions, 356 events. 60/356 cut-off events. For 547/562 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 1940 event pairs, 17 based on Foata normal form. 16/349 useless extension candidates. Maximal degree in co-relation 787. Up to 91 conditions per place. [2022-11-18 18:41:58,946 INFO L137 encePairwiseOnDemand]: 90/100 looper letters, 42 selfloop transitions, 15 changer transitions 11/124 dead transitions. [2022-11-18 18:41:58,946 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 117 places, 124 transitions, 688 flow [2022-11-18 18:41:58,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 18:41:58,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-11-18 18:41:58,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 665 transitions. [2022-11-18 18:41:58,950 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7388888888888889 [2022-11-18 18:41:58,950 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 665 transitions. [2022-11-18 18:41:58,950 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 665 transitions. [2022-11-18 18:41:58,951 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 18:41:58,951 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 665 transitions. [2022-11-18 18:41:58,953 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 73.88888888888889) internal successors, (665), 9 states have internal predecessors, (665), 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) [2022-11-18 18:41:58,956 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 100.0) internal successors, (1000), 10 states have internal predecessors, (1000), 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) [2022-11-18 18:41:58,956 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 100.0) internal successors, (1000), 10 states have internal predecessors, (1000), 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) [2022-11-18 18:41:58,957 INFO L175 Difference]: Start difference. First operand has 110 places, 104 transitions, 488 flow. Second operand 9 states and 665 transitions. [2022-11-18 18:41:58,957 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 117 places, 124 transitions, 688 flow [2022-11-18 18:41:58,964 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 114 places, 124 transitions, 637 flow, removed 11 selfloop flow, removed 3 redundant places. [2022-11-18 18:41:58,967 INFO L231 Difference]: Finished difference. Result has 118 places, 101 transitions, 463 flow [2022-11-18 18:41:58,967 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=100, PETRI_DIFFERENCE_MINUEND_FLOW=442, PETRI_DIFFERENCE_MINUEND_PLACES=106, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=104, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=89, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=463, PETRI_PLACES=118, PETRI_TRANSITIONS=101} [2022-11-18 18:41:58,968 INFO L288 CegarLoopForPetriNet]: 91 programPoint places, 27 predicate places. [2022-11-18 18:41:58,968 INFO L495 AbstractCegarLoop]: Abstraction has has 118 places, 101 transitions, 463 flow [2022-11-18 18:41:58,969 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 70.16666666666667) internal successors, (421), 6 states have internal predecessors, (421), 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) [2022-11-18 18:41:58,969 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 18:41:58,969 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:41:58,969 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-18 18:41:58,970 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 2 more)] === [2022-11-18 18:41:58,970 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:41:58,971 INFO L85 PathProgramCache]: Analyzing trace with hash -247665437, now seen corresponding path program 1 times [2022-11-18 18:41:58,971 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:41:58,971 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1880854363] [2022-11-18 18:41:58,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:41:58,972 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:41:58,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:41:59,172 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:41:59,173 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:41:59,173 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1880854363] [2022-11-18 18:41:59,173 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1880854363] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:41:59,173 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:41:59,174 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 18:41:59,174 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [655870047] [2022-11-18 18:41:59,174 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:41:59,174 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 18:41:59,175 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:41:59,175 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 18:41:59,175 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 18:41:59,176 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 80 out of 100 [2022-11-18 18:41:59,176 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 118 places, 101 transitions, 463 flow. Second operand has 3 states, 3 states have (on average 83.0) internal successors, (249), 3 states have internal predecessors, (249), 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) [2022-11-18 18:41:59,177 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 18:41:59,177 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 80 of 100 [2022-11-18 18:41:59,177 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 18:41:59,222 INFO L130 PetriNetUnfolder]: 0/90 cut-off events. [2022-11-18 18:41:59,226 INFO L131 PetriNetUnfolder]: For 78/78 co-relation queries the response was YES. [2022-11-18 18:41:59,226 INFO L83 FinitePrefix]: Finished finitePrefix Result has 170 conditions, 90 events. 0/90 cut-off events. For 78/78 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 43 event pairs, 0 based on Foata normal form. 2/89 useless extension candidates. Maximal degree in co-relation 0. Up to 9 conditions per place. [2022-11-18 18:41:59,227 INFO L137 encePairwiseOnDemand]: 97/100 looper letters, 7 selfloop transitions, 3 changer transitions 5/79 dead transitions. [2022-11-18 18:41:59,227 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 116 places, 79 transitions, 277 flow [2022-11-18 18:41:59,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 18:41:59,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 18:41:59,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 252 transitions. [2022-11-18 18:41:59,229 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.84 [2022-11-18 18:41:59,230 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 252 transitions. [2022-11-18 18:41:59,230 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 252 transitions. [2022-11-18 18:41:59,230 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 18:41:59,230 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 252 transitions. [2022-11-18 18:41:59,231 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 84.0) internal successors, (252), 3 states have internal predecessors, (252), 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) [2022-11-18 18:41:59,232 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 100.0) internal successors, (400), 4 states have internal predecessors, (400), 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) [2022-11-18 18:41:59,233 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 100.0) internal successors, (400), 4 states have internal predecessors, (400), 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) [2022-11-18 18:41:59,233 INFO L175 Difference]: Start difference. First operand has 118 places, 101 transitions, 463 flow. Second operand 3 states and 252 transitions. [2022-11-18 18:41:59,233 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 116 places, 79 transitions, 277 flow [2022-11-18 18:41:59,235 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 97 places, 79 transitions, 221 flow, removed 8 selfloop flow, removed 19 redundant places. [2022-11-18 18:41:59,240 INFO L231 Difference]: Finished difference. Result has 97 places, 74 transitions, 186 flow [2022-11-18 18:41:59,240 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=100, PETRI_DIFFERENCE_MINUEND_FLOW=201, PETRI_DIFFERENCE_MINUEND_PLACES=95, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=79, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=76, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=186, PETRI_PLACES=97, PETRI_TRANSITIONS=74} [2022-11-18 18:41:59,244 INFO L288 CegarLoopForPetriNet]: 91 programPoint places, 6 predicate places. [2022-11-18 18:41:59,244 INFO L495 AbstractCegarLoop]: Abstraction has has 97 places, 74 transitions, 186 flow [2022-11-18 18:41:59,245 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 83.0) internal successors, (249), 3 states have internal predecessors, (249), 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) [2022-11-18 18:41:59,245 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 18:41:59,246 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] [2022-11-18 18:41:59,246 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-18 18:41:59,247 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 2 more)] === [2022-11-18 18:41:59,248 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:41:59,249 INFO L85 PathProgramCache]: Analyzing trace with hash 104241258, now seen corresponding path program 1 times [2022-11-18 18:41:59,249 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:41:59,249 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [869211965] [2022-11-18 18:41:59,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:41:59,251 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:41:59,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:41:59,391 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:41:59,392 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:41:59,392 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [869211965] [2022-11-18 18:41:59,392 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [869211965] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:41:59,393 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:41:59,393 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-18 18:41:59,393 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1315929944] [2022-11-18 18:41:59,393 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:41:59,394 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-18 18:41:59,394 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:41:59,395 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-18 18:41:59,395 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-18 18:41:59,396 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 71 out of 100 [2022-11-18 18:41:59,397 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 97 places, 74 transitions, 186 flow. Second operand has 5 states, 5 states have (on average 73.4) internal successors, (367), 5 states have internal predecessors, (367), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:41:59,397 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 18:41:59,397 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 71 of 100 [2022-11-18 18:41:59,397 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 18:41:59,468 INFO L130 PetriNetUnfolder]: 0/75 cut-off events. [2022-11-18 18:41:59,468 INFO L131 PetriNetUnfolder]: For 15/15 co-relation queries the response was YES. [2022-11-18 18:41:59,468 INFO L83 FinitePrefix]: Finished finitePrefix Result has 120 conditions, 75 events. 0/75 cut-off events. For 15/15 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 12 event pairs, 0 based on Foata normal form. 1/76 useless extension candidates. Maximal degree in co-relation 0. Up to 5 conditions per place. [2022-11-18 18:41:59,469 INFO L137 encePairwiseOnDemand]: 94/100 looper letters, 13 selfloop transitions, 5 changer transitions 0/73 dead transitions. [2022-11-18 18:41:59,469 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 94 places, 73 transitions, 215 flow [2022-11-18 18:41:59,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-18 18:41:59,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-11-18 18:41:59,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 516 transitions. [2022-11-18 18:41:59,472 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7371428571428571 [2022-11-18 18:41:59,472 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 516 transitions. [2022-11-18 18:41:59,472 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 516 transitions. [2022-11-18 18:41:59,473 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 18:41:59,473 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 516 transitions. [2022-11-18 18:41:59,475 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 73.71428571428571) internal successors, (516), 7 states have internal predecessors, (516), 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) [2022-11-18 18:41:59,477 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 100.0) internal successors, (800), 8 states have internal predecessors, (800), 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) [2022-11-18 18:41:59,477 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 100.0) internal successors, (800), 8 states have internal predecessors, (800), 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) [2022-11-18 18:41:59,478 INFO L175 Difference]: Start difference. First operand has 97 places, 74 transitions, 186 flow. Second operand 7 states and 516 transitions. [2022-11-18 18:41:59,478 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 94 places, 73 transitions, 215 flow [2022-11-18 18:41:59,479 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 88 places, 73 transitions, 194 flow, removed 3 selfloop flow, removed 6 redundant places. [2022-11-18 18:41:59,480 INFO L231 Difference]: Finished difference. Result has 88 places, 73 transitions, 168 flow [2022-11-18 18:41:59,481 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=100, PETRI_DIFFERENCE_MINUEND_FLOW=158, PETRI_DIFFERENCE_MINUEND_PLACES=82, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=73, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=68, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=168, PETRI_PLACES=88, PETRI_TRANSITIONS=73} [2022-11-18 18:41:59,482 INFO L288 CegarLoopForPetriNet]: 91 programPoint places, -3 predicate places. [2022-11-18 18:41:59,482 INFO L495 AbstractCegarLoop]: Abstraction has has 88 places, 73 transitions, 168 flow [2022-11-18 18:41:59,482 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 73.4) internal successors, (367), 5 states have internal predecessors, (367), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:41:59,483 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 18:41:59,483 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] [2022-11-18 18:41:59,483 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-18 18:41:59,484 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 2 more)] === [2022-11-18 18:41:59,484 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:41:59,484 INFO L85 PathProgramCache]: Analyzing trace with hash 29977240, now seen corresponding path program 1 times [2022-11-18 18:41:59,484 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:41:59,485 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1301099228] [2022-11-18 18:41:59,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:41:59,485 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:41:59,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:41:59,606 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:41:59,606 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:41:59,606 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1301099228] [2022-11-18 18:41:59,607 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1301099228] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:41:59,607 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:41:59,607 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-18 18:41:59,608 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2065057356] [2022-11-18 18:41:59,608 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:41:59,608 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-18 18:41:59,609 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:41:59,609 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-18 18:41:59,609 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-18 18:41:59,610 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 71 out of 100 [2022-11-18 18:41:59,611 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 88 places, 73 transitions, 168 flow. Second operand has 5 states, 5 states have (on average 73.6) internal successors, (368), 5 states have internal predecessors, (368), 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) [2022-11-18 18:41:59,611 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 18:41:59,612 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 71 of 100 [2022-11-18 18:41:59,612 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 18:41:59,669 INFO L130 PetriNetUnfolder]: 0/74 cut-off events. [2022-11-18 18:41:59,669 INFO L131 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2022-11-18 18:41:59,669 INFO L83 FinitePrefix]: Finished finitePrefix Result has 109 conditions, 74 events. 0/74 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 11 event pairs, 0 based on Foata normal form. 0/73 useless extension candidates. Maximal degree in co-relation 0. Up to 6 conditions per place. [2022-11-18 18:41:59,670 INFO L137 encePairwiseOnDemand]: 93/100 looper letters, 11 selfloop transitions, 6 changer transitions 0/72 dead transitions. [2022-11-18 18:41:59,670 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 91 places, 72 transitions, 199 flow [2022-11-18 18:41:59,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 18:41:59,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-18 18:41:59,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 444 transitions. [2022-11-18 18:41:59,684 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.74 [2022-11-18 18:41:59,684 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 444 transitions. [2022-11-18 18:41:59,685 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 444 transitions. [2022-11-18 18:41:59,685 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 18:41:59,686 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 444 transitions. [2022-11-18 18:41:59,688 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 74.0) internal successors, (444), 6 states have internal predecessors, (444), 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) [2022-11-18 18:41:59,689 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 100.0) internal successors, (700), 7 states have internal predecessors, (700), 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) [2022-11-18 18:41:59,690 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 100.0) internal successors, (700), 7 states have internal predecessors, (700), 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) [2022-11-18 18:41:59,691 INFO L175 Difference]: Start difference. First operand has 88 places, 73 transitions, 168 flow. Second operand 6 states and 444 transitions. [2022-11-18 18:41:59,691 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 91 places, 72 transitions, 199 flow [2022-11-18 18:41:59,692 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 87 places, 72 transitions, 192 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-11-18 18:41:59,694 INFO L231 Difference]: Finished difference. Result has 87 places, 72 transitions, 170 flow [2022-11-18 18:41:59,694 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=100, PETRI_DIFFERENCE_MINUEND_FLOW=158, PETRI_DIFFERENCE_MINUEND_PLACES=82, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=72, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=66, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=170, PETRI_PLACES=87, PETRI_TRANSITIONS=72} [2022-11-18 18:41:59,695 INFO L288 CegarLoopForPetriNet]: 91 programPoint places, -4 predicate places. [2022-11-18 18:41:59,695 INFO L495 AbstractCegarLoop]: Abstraction has has 87 places, 72 transitions, 170 flow [2022-11-18 18:41:59,696 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 73.6) internal successors, (368), 5 states have internal predecessors, (368), 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) [2022-11-18 18:41:59,696 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 18:41:59,697 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] [2022-11-18 18:41:59,697 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-18 18:41:59,697 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 2 more)] === [2022-11-18 18:41:59,698 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:41:59,698 INFO L85 PathProgramCache]: Analyzing trace with hash 1456045888, now seen corresponding path program 1 times [2022-11-18 18:41:59,699 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:41:59,699 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1981291123] [2022-11-18 18:41:59,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:41:59,700 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:41:59,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:41:59,986 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:41:59,988 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:41:59,989 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1981291123] [2022-11-18 18:41:59,989 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1981291123] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:41:59,992 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:41:59,992 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-18 18:41:59,993 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1112049278] [2022-11-18 18:41:59,993 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:41:59,994 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-18 18:41:59,996 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:41:59,996 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-18 18:41:59,997 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-11-18 18:41:59,998 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 66 out of 100 [2022-11-18 18:42:00,000 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 87 places, 72 transitions, 170 flow. Second operand has 7 states, 7 states have (on average 68.57142857142857) internal successors, (480), 7 states have internal predecessors, (480), 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) [2022-11-18 18:42:00,000 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 18:42:00,001 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 66 of 100 [2022-11-18 18:42:00,001 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 18:42:00,133 INFO L130 PetriNetUnfolder]: 0/73 cut-off events. [2022-11-18 18:42:00,134 INFO L131 PetriNetUnfolder]: For 12/12 co-relation queries the response was YES. [2022-11-18 18:42:00,134 INFO L83 FinitePrefix]: Finished finitePrefix Result has 112 conditions, 73 events. 0/73 cut-off events. For 12/12 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 9 event pairs, 0 based on Foata normal form. 0/73 useless extension candidates. Maximal degree in co-relation 0. Up to 5 conditions per place. [2022-11-18 18:42:00,135 INFO L137 encePairwiseOnDemand]: 93/100 looper letters, 13 selfloop transitions, 6 changer transitions 0/71 dead transitions. [2022-11-18 18:42:00,135 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 92 places, 71 transitions, 205 flow [2022-11-18 18:42:00,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-18 18:42:00,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2022-11-18 18:42:00,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 548 transitions. [2022-11-18 18:42:00,138 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.685 [2022-11-18 18:42:00,138 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 548 transitions. [2022-11-18 18:42:00,138 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 548 transitions. [2022-11-18 18:42:00,139 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 18:42:00,139 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 548 transitions. [2022-11-18 18:42:00,141 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 68.5) internal successors, (548), 8 states have internal predecessors, (548), 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) [2022-11-18 18:42:00,143 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 100.0) internal successors, (900), 9 states have internal predecessors, (900), 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) [2022-11-18 18:42:00,143 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 100.0) internal successors, (900), 9 states have internal predecessors, (900), 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) [2022-11-18 18:42:00,144 INFO L175 Difference]: Start difference. First operand has 87 places, 72 transitions, 170 flow. Second operand 8 states and 548 transitions. [2022-11-18 18:42:00,144 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 92 places, 71 transitions, 205 flow [2022-11-18 18:42:00,145 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 88 places, 71 transitions, 198 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-11-18 18:42:00,146 INFO L231 Difference]: Finished difference. Result has 88 places, 71 transitions, 172 flow [2022-11-18 18:42:00,147 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=100, PETRI_DIFFERENCE_MINUEND_FLOW=160, PETRI_DIFFERENCE_MINUEND_PLACES=81, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=71, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=65, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=172, PETRI_PLACES=88, PETRI_TRANSITIONS=71} [2022-11-18 18:42:00,148 INFO L288 CegarLoopForPetriNet]: 91 programPoint places, -3 predicate places. [2022-11-18 18:42:00,148 INFO L495 AbstractCegarLoop]: Abstraction has has 88 places, 71 transitions, 172 flow [2022-11-18 18:42:00,149 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 68.57142857142857) internal successors, (480), 7 states have internal predecessors, (480), 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) [2022-11-18 18:42:00,149 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 18:42:00,149 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] [2022-11-18 18:42:00,149 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-18 18:42:00,150 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 2 more)] === [2022-11-18 18:42:00,150 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:42:00,150 INFO L85 PathProgramCache]: Analyzing trace with hash -2107217550, now seen corresponding path program 1 times [2022-11-18 18:42:00,151 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:42:00,151 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [227373796] [2022-11-18 18:42:00,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:42:00,152 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:42:00,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:42:00,323 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:42:00,324 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:42:00,324 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [227373796] [2022-11-18 18:42:00,324 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [227373796] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:42:00,325 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:42:00,325 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-18 18:42:00,325 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [197738080] [2022-11-18 18:42:00,325 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:42:00,326 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-18 18:42:00,326 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:42:00,327 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-18 18:42:00,327 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-11-18 18:42:00,328 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 66 out of 100 [2022-11-18 18:42:00,329 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 88 places, 71 transitions, 172 flow. Second operand has 7 states, 7 states have (on average 68.71428571428571) internal successors, (481), 7 states have internal predecessors, (481), 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) [2022-11-18 18:42:00,329 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 18:42:00,330 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 66 of 100 [2022-11-18 18:42:00,330 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 18:42:00,456 INFO L130 PetriNetUnfolder]: 0/72 cut-off events. [2022-11-18 18:42:00,456 INFO L131 PetriNetUnfolder]: For 16/16 co-relation queries the response was YES. [2022-11-18 18:42:00,457 INFO L83 FinitePrefix]: Finished finitePrefix Result has 112 conditions, 72 events. 0/72 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 9 event pairs, 0 based on Foata normal form. 1/73 useless extension candidates. Maximal degree in co-relation 0. Up to 5 conditions per place. [2022-11-18 18:42:00,457 INFO L137 encePairwiseOnDemand]: 91/100 looper letters, 0 selfloop transitions, 0 changer transitions 70/70 dead transitions. [2022-11-18 18:42:00,457 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 94 places, 70 transitions, 205 flow [2022-11-18 18:42:00,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 18:42:00,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-11-18 18:42:00,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 613 transitions. [2022-11-18 18:42:00,460 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6811111111111111 [2022-11-18 18:42:00,461 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 613 transitions. [2022-11-18 18:42:00,461 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 613 transitions. [2022-11-18 18:42:00,462 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 18:42:00,462 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 613 transitions. [2022-11-18 18:42:00,464 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 68.11111111111111) internal successors, (613), 9 states have internal predecessors, (613), 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) [2022-11-18 18:42:00,466 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 100.0) internal successors, (1000), 10 states have internal predecessors, (1000), 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) [2022-11-18 18:42:00,467 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 100.0) internal successors, (1000), 10 states have internal predecessors, (1000), 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) [2022-11-18 18:42:00,467 INFO L175 Difference]: Start difference. First operand has 88 places, 71 transitions, 172 flow. Second operand 9 states and 613 transitions. [2022-11-18 18:42:00,468 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 94 places, 70 transitions, 205 flow [2022-11-18 18:42:00,469 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 88 places, 70 transitions, 194 flow, removed 0 selfloop flow, removed 6 redundant places. [2022-11-18 18:42:00,469 INFO L231 Difference]: Finished difference. Result has 88 places, 0 transitions, 0 flow [2022-11-18 18:42:00,470 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=100, PETRI_DIFFERENCE_MINUEND_FLOW=158, PETRI_DIFFERENCE_MINUEND_PLACES=80, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=70, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=70, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=0, PETRI_PLACES=88, PETRI_TRANSITIONS=0} [2022-11-18 18:42:00,471 INFO L288 CegarLoopForPetriNet]: 91 programPoint places, -3 predicate places. [2022-11-18 18:42:00,471 INFO L495 AbstractCegarLoop]: Abstraction has has 88 places, 0 transitions, 0 flow [2022-11-18 18:42:00,472 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 68.71428571428571) internal successors, (481), 7 states have internal predecessors, (481), 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) [2022-11-18 18:42:00,475 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 5 remaining) [2022-11-18 18:42:00,476 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 5 remaining) [2022-11-18 18:42:00,476 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 5 remaining) [2022-11-18 18:42:00,476 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 5 remaining) [2022-11-18 18:42:00,477 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 5 remaining) [2022-11-18 18:42:00,477 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-18 18:42:00,477 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:42:00,482 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-18 18:42:00,482 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-18 18:42:00,501 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 06:42:00 BasicIcfg [2022-11-18 18:42:00,501 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-18 18:42:00,502 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-18 18:42:00,502 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-18 18:42:00,502 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-18 18:42:00,503 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 06:41:56" (3/4) ... [2022-11-18 18:42:00,507 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-18 18:42:00,515 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2022-11-18 18:42:00,522 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2022-11-18 18:42:00,522 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-11-18 18:42:00,523 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-18 18:42:00,523 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-18 18:42:00,581 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9458783c-8270-4361-b850-ec1a0ec65600/bin/uautomizer-TMbwUNV5ro/witness.graphml [2022-11-18 18:42:00,581 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-18 18:42:00,582 INFO L158 Benchmark]: Toolchain (without parser) took 5903.53ms. Allocated memory was 100.7MB in the beginning and 178.3MB in the end (delta: 77.6MB). Free memory was 68.7MB in the beginning and 71.0MB in the end (delta: -2.3MB). Peak memory consumption was 75.3MB. Max. memory is 16.1GB. [2022-11-18 18:42:00,583 INFO L158 Benchmark]: CDTParser took 0.37ms. Allocated memory is still 100.7MB. Free memory is still 54.5MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-18 18:42:00,583 INFO L158 Benchmark]: CACSL2BoogieTranslator took 677.28ms. Allocated memory is still 100.7MB. Free memory was 68.5MB in the beginning and 68.4MB in the end (delta: 124.2kB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-18 18:42:00,583 INFO L158 Benchmark]: Boogie Procedure Inliner took 88.05ms. Allocated memory is still 100.7MB. Free memory was 68.4MB in the beginning and 66.4MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-18 18:42:00,584 INFO L158 Benchmark]: Boogie Preprocessor took 61.06ms. Allocated memory is still 100.7MB. Free memory was 66.4MB in the beginning and 64.8MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-18 18:42:00,584 INFO L158 Benchmark]: RCFGBuilder took 806.36ms. Allocated memory is still 100.7MB. Free memory was 64.8MB in the beginning and 51.5MB in the end (delta: 13.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-18 18:42:00,585 INFO L158 Benchmark]: TraceAbstraction took 4156.87ms. Allocated memory was 140.5MB in the beginning and 178.3MB in the end (delta: 37.7MB). Free memory was 117.8MB in the beginning and 74.2MB in the end (delta: 43.6MB). Peak memory consumption was 79.9MB. Max. memory is 16.1GB. [2022-11-18 18:42:00,585 INFO L158 Benchmark]: Witness Printer took 79.10ms. Allocated memory is still 178.3MB. Free memory was 74.2MB in the beginning and 71.0MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-18 18:42:00,587 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.37ms. Allocated memory is still 100.7MB. Free memory is still 54.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 677.28ms. Allocated memory is still 100.7MB. Free memory was 68.5MB in the beginning and 68.4MB in the end (delta: 124.2kB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 88.05ms. Allocated memory is still 100.7MB. Free memory was 68.4MB in the beginning and 66.4MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 61.06ms. Allocated memory is still 100.7MB. Free memory was 66.4MB in the beginning and 64.8MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 806.36ms. Allocated memory is still 100.7MB. Free memory was 64.8MB in the beginning and 51.5MB in the end (delta: 13.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 4156.87ms. Allocated memory was 140.5MB in the beginning and 178.3MB in the end (delta: 37.7MB). Free memory was 117.8MB in the beginning and 74.2MB in the end (delta: 43.6MB). Peak memory consumption was 79.9MB. Max. memory is 16.1GB. * Witness Printer took 79.10ms. Allocated memory is still 178.3MB. Free memory was 74.2MB in the beginning and 71.0MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 702]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 702]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 704]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 704]: 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 3 procedures, 125 locations, 5 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: 3.9s, OverallIterations: 9, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 204 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 204 mSDsluCounter, 191 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 104 mSDsCounter, 29 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 395 IncrementalHoareTripleChecker+Invalid, 424 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 29 mSolverCounterUnsat, 87 mSDtfsCounter, 395 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 67 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=488occurred in iteration=3, InterpolantAutomatonStates: 62, 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, 1.5s InterpolantComputationTime, 474 NumberOfCodeBlocks, 474 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 465 ConstructedInterpolants, 0 QuantifiedInterpolants, 1129 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 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! [2022-11-18 18:42:00,613 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9458783c-8270-4361-b850-ec1a0ec65600/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE