./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/goblint-regression/05-lval_ls_02-idx_nr.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 38b53e6a 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_84fce847-dad7-4f08-81a4-e05f853a8017/bin/uautomizer-ZsLfNo2U6R/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84fce847-dad7-4f08-81a4-e05f853a8017/bin/uautomizer-ZsLfNo2U6R/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84fce847-dad7-4f08-81a4-e05f853a8017/bin/uautomizer-ZsLfNo2U6R/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84fce847-dad7-4f08-81a4-e05f853a8017/bin/uautomizer-ZsLfNo2U6R/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/05-lval_ls_02-idx_nr.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84fce847-dad7-4f08-81a4-e05f853a8017/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84fce847-dad7-4f08-81a4-e05f853a8017/bin/uautomizer-ZsLfNo2U6R --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 6a6d4c6573ed55a0a96a38de6d1424f0a577970a6c88cea50d5cb9a315d791fd --- 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-38b53e6 [2022-11-25 17:40:36,145 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 17:40:36,147 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 17:40:36,170 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 17:40:36,171 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 17:40:36,172 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 17:40:36,174 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 17:40:36,176 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 17:40:36,177 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 17:40:36,179 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 17:40:36,180 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 17:40:36,181 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 17:40:36,182 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 17:40:36,183 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 17:40:36,184 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 17:40:36,185 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 17:40:36,187 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 17:40:36,188 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 17:40:36,190 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 17:40:36,192 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 17:40:36,193 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 17:40:36,196 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 17:40:36,197 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 17:40:36,198 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 17:40:36,203 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 17:40:36,203 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 17:40:36,204 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 17:40:36,205 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 17:40:36,205 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 17:40:36,207 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 17:40:36,207 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 17:40:36,208 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 17:40:36,209 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 17:40:36,223 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 17:40:36,225 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 17:40:36,225 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 17:40:36,226 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 17:40:36,226 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 17:40:36,227 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 17:40:36,228 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 17:40:36,228 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 17:40:36,232 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84fce847-dad7-4f08-81a4-e05f853a8017/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-11-25 17:40:36,284 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 17:40:36,284 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 17:40:36,285 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 17:40:36,285 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 17:40:36,286 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 17:40:36,286 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 17:40:36,287 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-25 17:40:36,287 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-25 17:40:36,288 INFO L138 SettingsManager]: * Use SBE=true [2022-11-25 17:40:36,288 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 17:40:36,289 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-25 17:40:36,289 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-25 17:40:36,290 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-25 17:40:36,290 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-25 17:40:36,290 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 17:40:36,291 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 17:40:36,291 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 17:40:36,291 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 17:40:36,291 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-25 17:40:36,292 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-25 17:40:36,292 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 17:40:36,292 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 17:40:36,292 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 17:40:36,293 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 17:40:36,293 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-25 17:40:36,293 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 17:40:36,293 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 17:40:36,294 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 17:40:36,295 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 17:40:36,295 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 17:40:36,295 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-25 17:40:36,295 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-25 17:40:36,296 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-25 17:40:36,296 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 17:40:36,296 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-11-25 17:40:36,297 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-25 17:40:36,297 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84fce847-dad7-4f08-81a4-e05f853a8017/bin/uautomizer-ZsLfNo2U6R/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84fce847-dad7-4f08-81a4-e05f853a8017/bin/uautomizer-ZsLfNo2U6R Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6a6d4c6573ed55a0a96a38de6d1424f0a577970a6c88cea50d5cb9a315d791fd [2022-11-25 17:40:36,674 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 17:40:36,716 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 17:40:36,719 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 17:40:36,721 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 17:40:36,721 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 17:40:36,723 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84fce847-dad7-4f08-81a4-e05f853a8017/bin/uautomizer-ZsLfNo2U6R/../../sv-benchmarks/c/goblint-regression/05-lval_ls_02-idx_nr.i [2022-11-25 17:40:40,028 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 17:40:40,438 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 17:40:40,439 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84fce847-dad7-4f08-81a4-e05f853a8017/sv-benchmarks/c/goblint-regression/05-lval_ls_02-idx_nr.i [2022-11-25 17:40:40,467 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84fce847-dad7-4f08-81a4-e05f853a8017/bin/uautomizer-ZsLfNo2U6R/data/5bd485cc6/5d009d10c94343a685781b6e63ff6b68/FLAGb0435f46d [2022-11-25 17:40:40,488 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84fce847-dad7-4f08-81a4-e05f853a8017/bin/uautomizer-ZsLfNo2U6R/data/5bd485cc6/5d009d10c94343a685781b6e63ff6b68 [2022-11-25 17:40:40,492 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 17:40:40,495 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 17:40:40,497 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 17:40:40,498 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 17:40:40,501 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 17:40:40,502 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 05:40:40" (1/1) ... [2022-11-25 17:40:40,504 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5dbd0faa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:40:40, skipping insertion in model container [2022-11-25 17:40:40,504 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 05:40:40" (1/1) ... [2022-11-25 17:40:40,512 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 17:40:40,565 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 17:40:40,986 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 17:40:41,004 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 17:40:41,046 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 17:40:41,078 INFO L208 MainTranslator]: Completed translation [2022-11-25 17:40:41,079 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:40:41 WrapperNode [2022-11-25 17:40:41,079 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 17:40:41,080 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 17:40:41,080 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 17:40:41,080 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 17:40:41,088 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:40:41" (1/1) ... [2022-11-25 17:40:41,102 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:40:41" (1/1) ... [2022-11-25 17:40:41,121 INFO L138 Inliner]: procedures = 161, calls = 10, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 41 [2022-11-25 17:40:41,122 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 17:40:41,122 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 17:40:41,123 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 17:40:41,123 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 17:40:41,133 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:40:41" (1/1) ... [2022-11-25 17:40:41,134 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:40:41" (1/1) ... [2022-11-25 17:40:41,136 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:40:41" (1/1) ... [2022-11-25 17:40:41,137 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:40:41" (1/1) ... [2022-11-25 17:40:41,143 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:40:41" (1/1) ... [2022-11-25 17:40:41,147 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:40:41" (1/1) ... [2022-11-25 17:40:41,148 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:40:41" (1/1) ... [2022-11-25 17:40:41,150 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:40:41" (1/1) ... [2022-11-25 17:40:41,152 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 17:40:41,153 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 17:40:41,153 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 17:40:41,153 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 17:40:41,154 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:40:41" (1/1) ... [2022-11-25 17:40:41,161 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 17:40:41,173 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84fce847-dad7-4f08-81a4-e05f853a8017/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:40:41,186 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84fce847-dad7-4f08-81a4-e05f853a8017/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 17:40:41,207 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84fce847-dad7-4f08-81a4-e05f853a8017/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 17:40:41,232 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-25 17:40:41,232 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-25 17:40:41,232 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-25 17:40:41,233 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-25 17:40:41,233 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-11-25 17:40:41,233 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-11-25 17:40:41,233 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-25 17:40:41,234 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 17:40:41,234 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 17:40:41,236 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-25 17:40:41,364 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 17:40:41,366 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 17:40:41,561 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 17:40:41,569 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 17:40:41,570 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-25 17:40:41,572 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:40:41 BoogieIcfgContainer [2022-11-25 17:40:41,573 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 17:40:41,577 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 17:40:41,577 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 17:40:41,581 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 17:40:41,582 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 05:40:40" (1/3) ... [2022-11-25 17:40:41,583 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3501fab3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 05:40:41, skipping insertion in model container [2022-11-25 17:40:41,583 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:40:41" (2/3) ... [2022-11-25 17:40:41,584 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3501fab3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 05:40:41, skipping insertion in model container [2022-11-25 17:40:41,584 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:40:41" (3/3) ... [2022-11-25 17:40:41,585 INFO L112 eAbstractionObserver]: Analyzing ICFG 05-lval_ls_02-idx_nr.i [2022-11-25 17:40:41,597 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-25 17:40:41,611 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 17:40:41,611 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2022-11-25 17:40:41,612 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-25 17:40:41,699 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-25 17:40:41,770 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 63 places, 61 transitions, 127 flow [2022-11-25 17:40:41,834 INFO L130 PetriNetUnfolder]: 2/60 cut-off events. [2022-11-25 17:40:41,834 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-25 17:40:41,838 INFO L83 FinitePrefix]: Finished finitePrefix Result has 64 conditions, 60 events. 2/60 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 56 event pairs, 0 based on Foata normal form. 0/52 useless extension candidates. Maximal degree in co-relation 28. Up to 2 conditions per place. [2022-11-25 17:40:41,839 INFO L82 GeneralOperation]: Start removeDead. Operand has 63 places, 61 transitions, 127 flow [2022-11-25 17:40:41,843 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 62 places, 60 transitions, 123 flow [2022-11-25 17:40:41,848 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-25 17:40:41,877 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 62 places, 60 transitions, 123 flow [2022-11-25 17:40:41,887 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 62 places, 60 transitions, 123 flow [2022-11-25 17:40:41,887 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 62 places, 60 transitions, 123 flow [2022-11-25 17:40:41,922 INFO L130 PetriNetUnfolder]: 2/60 cut-off events. [2022-11-25 17:40:41,922 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-25 17:40:41,923 INFO L83 FinitePrefix]: Finished finitePrefix Result has 64 conditions, 60 events. 2/60 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 56 event pairs, 0 based on Foata normal form. 0/52 useless extension candidates. Maximal degree in co-relation 28. Up to 2 conditions per place. [2022-11-25 17:40:41,924 INFO L119 LiptonReduction]: Number of co-enabled transitions 468 [2022-11-25 17:40:43,844 INFO L134 LiptonReduction]: Checked pairs total: 868 [2022-11-25 17:40:43,844 INFO L136 LiptonReduction]: Total number of compositions: 54 [2022-11-25 17:40:43,863 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 17:40:43,871 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;@cdcc963, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 17:40:43,872 INFO L358 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2022-11-25 17:40:43,875 INFO L130 PetriNetUnfolder]: 1/3 cut-off events. [2022-11-25 17:40:43,875 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-25 17:40:43,875 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 17:40:43,876 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1] [2022-11-25 17:40:43,877 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2022-11-25 17:40:43,883 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:40:43,883 INFO L85 PathProgramCache]: Analyzing trace with hash 7326, now seen corresponding path program 1 times [2022-11-25 17:40:43,895 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:40:43,896 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [915631092] [2022-11-25 17:40:43,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:40:43,897 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:40:44,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:40:44,185 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:40:44,186 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:40:44,186 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [915631092] [2022-11-25 17:40:44,187 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [915631092] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:40:44,187 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:40:44,187 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-25 17:40:44,189 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [410044648] [2022-11-25 17:40:44,190 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:40:44,199 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 17:40:44,200 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:40:44,225 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 17:40:44,227 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 17:40:44,256 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 115 [2022-11-25 17:40:44,259 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 21 places, 18 transitions, 39 flow. Second operand has 3 states, 3 states have (on average 55.666666666666664) internal successors, (167), 3 states have internal predecessors, (167), 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) [2022-11-25 17:40:44,259 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 17:40:44,259 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 115 [2022-11-25 17:40:44,260 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 17:40:44,319 INFO L130 PetriNetUnfolder]: 37/88 cut-off events. [2022-11-25 17:40:44,319 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-25 17:40:44,320 INFO L83 FinitePrefix]: Finished finitePrefix Result has 181 conditions, 88 events. 37/88 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 277 event pairs, 36 based on Foata normal form. 0/59 useless extension candidates. Maximal degree in co-relation 168. Up to 88 conditions per place. [2022-11-25 17:40:44,339 INFO L137 encePairwiseOnDemand]: 112/115 looper letters, 15 selfloop transitions, 1 changer transitions 0/16 dead transitions. [2022-11-25 17:40:44,340 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 21 places, 16 transitions, 67 flow [2022-11-25 17:40:44,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 17:40:44,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-25 17:40:44,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 183 transitions. [2022-11-25 17:40:44,357 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5304347826086957 [2022-11-25 17:40:44,358 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 183 transitions. [2022-11-25 17:40:44,358 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 183 transitions. [2022-11-25 17:40:44,361 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 17:40:44,364 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 183 transitions. [2022-11-25 17:40:44,372 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 61.0) internal successors, (183), 3 states have internal predecessors, (183), 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) [2022-11-25 17:40:44,379 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 115.0) internal successors, (460), 4 states have internal predecessors, (460), 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) [2022-11-25 17:40:44,385 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 115.0) internal successors, (460), 4 states have internal predecessors, (460), 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) [2022-11-25 17:40:44,387 INFO L175 Difference]: Start difference. First operand has 21 places, 18 transitions, 39 flow. Second operand 3 states and 183 transitions. [2022-11-25 17:40:44,388 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 21 places, 16 transitions, 67 flow [2022-11-25 17:40:44,391 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 20 places, 16 transitions, 66 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-25 17:40:44,392 INFO L231 Difference]: Finished difference. Result has 20 places, 16 transitions, 36 flow [2022-11-25 17:40:44,395 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=115, PETRI_DIFFERENCE_MINUEND_FLOW=34, PETRI_DIFFERENCE_MINUEND_PLACES=18, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=16, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=36, PETRI_PLACES=20, PETRI_TRANSITIONS=16} [2022-11-25 17:40:44,399 INFO L288 CegarLoopForPetriNet]: 21 programPoint places, -1 predicate places. [2022-11-25 17:40:44,399 INFO L495 AbstractCegarLoop]: Abstraction has has 20 places, 16 transitions, 36 flow [2022-11-25 17:40:44,400 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.666666666666664) internal successors, (167), 3 states have internal predecessors, (167), 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) [2022-11-25 17:40:44,400 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 17:40:44,400 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2022-11-25 17:40:44,401 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-25 17:40:44,401 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2022-11-25 17:40:44,411 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:40:44,411 INFO L85 PathProgramCache]: Analyzing trace with hash 218244584, now seen corresponding path program 1 times [2022-11-25 17:40:44,412 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:40:44,412 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1569855154] [2022-11-25 17:40:44,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:40:44,413 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:40:44,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:40:44,555 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:40:44,555 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:40:44,555 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1569855154] [2022-11-25 17:40:44,556 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1569855154] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:40:44,556 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:40:44,556 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 17:40:44,556 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [641265641] [2022-11-25 17:40:44,557 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:40:44,558 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 17:40:44,558 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:40:44,559 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 17:40:44,559 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 17:40:44,577 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 115 [2022-11-25 17:40:44,577 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 20 places, 16 transitions, 36 flow. Second operand has 3 states, 3 states have (on average 56.666666666666664) internal successors, (170), 3 states have internal predecessors, (170), 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) [2022-11-25 17:40:44,578 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 17:40:44,578 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 115 [2022-11-25 17:40:44,578 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 17:40:44,664 INFO L130 PetriNetUnfolder]: 37/89 cut-off events. [2022-11-25 17:40:44,664 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-25 17:40:44,666 INFO L83 FinitePrefix]: Finished finitePrefix Result has 184 conditions, 89 events. 37/89 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 277 event pairs, 36 based on Foata normal form. 0/60 useless extension candidates. Maximal degree in co-relation 178. Up to 89 conditions per place. [2022-11-25 17:40:44,667 INFO L137 encePairwiseOnDemand]: 112/115 looper letters, 15 selfloop transitions, 2 changer transitions 0/17 dead transitions. [2022-11-25 17:40:44,667 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 22 places, 17 transitions, 72 flow [2022-11-25 17:40:44,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 17:40:44,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-25 17:40:44,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 183 transitions. [2022-11-25 17:40:44,674 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5304347826086957 [2022-11-25 17:40:44,675 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 183 transitions. [2022-11-25 17:40:44,675 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 183 transitions. [2022-11-25 17:40:44,676 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 17:40:44,676 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 183 transitions. [2022-11-25 17:40:44,678 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 61.0) internal successors, (183), 3 states have internal predecessors, (183), 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) [2022-11-25 17:40:44,680 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 115.0) internal successors, (460), 4 states have internal predecessors, (460), 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) [2022-11-25 17:40:44,680 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 115.0) internal successors, (460), 4 states have internal predecessors, (460), 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) [2022-11-25 17:40:44,680 INFO L175 Difference]: Start difference. First operand has 20 places, 16 transitions, 36 flow. Second operand 3 states and 183 transitions. [2022-11-25 17:40:44,681 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 22 places, 17 transitions, 72 flow [2022-11-25 17:40:44,681 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 21 places, 17 transitions, 71 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-25 17:40:44,682 INFO L231 Difference]: Finished difference. Result has 22 places, 17 transitions, 47 flow [2022-11-25 17:40:44,683 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=115, PETRI_DIFFERENCE_MINUEND_FLOW=35, PETRI_DIFFERENCE_MINUEND_PLACES=19, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=16, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=14, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=47, PETRI_PLACES=22, PETRI_TRANSITIONS=17} [2022-11-25 17:40:44,684 INFO L288 CegarLoopForPetriNet]: 21 programPoint places, 1 predicate places. [2022-11-25 17:40:44,684 INFO L495 AbstractCegarLoop]: Abstraction has has 22 places, 17 transitions, 47 flow [2022-11-25 17:40:44,685 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 56.666666666666664) internal successors, (170), 3 states have internal predecessors, (170), 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) [2022-11-25 17:40:44,685 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 17:40:44,685 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2022-11-25 17:40:44,685 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-25 17:40:44,686 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2022-11-25 17:40:44,689 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:40:44,689 INFO L85 PathProgramCache]: Analyzing trace with hash -1816537950, now seen corresponding path program 1 times [2022-11-25 17:40:44,689 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:40:44,693 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1601485995] [2022-11-25 17:40:44,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:40:44,695 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:40:44,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:40:44,776 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:40:44,776 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:40:44,776 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1601485995] [2022-11-25 17:40:44,777 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1601485995] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 17:40:44,777 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [258923135] [2022-11-25 17:40:44,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:40:44,777 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:40:44,778 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84fce847-dad7-4f08-81a4-e05f853a8017/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:40:44,781 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84fce847-dad7-4f08-81a4-e05f853a8017/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 17:40:44,816 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84fce847-dad7-4f08-81a4-e05f853a8017/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-25 17:40:44,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:40:44,882 INFO L263 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-25 17:40:44,886 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:40:44,920 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:40:44,920 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 17:40:44,960 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:40:44,961 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [258923135] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 17:40:44,961 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-25 17:40:44,961 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 5 [2022-11-25 17:40:44,961 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1470411032] [2022-11-25 17:40:44,962 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-25 17:40:44,962 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-25 17:40:44,962 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:40:44,963 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-25 17:40:44,963 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-25 17:40:44,995 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 54 out of 115 [2022-11-25 17:40:44,996 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 22 places, 17 transitions, 47 flow. Second operand has 6 states, 6 states have (on average 55.5) internal successors, (333), 6 states have internal predecessors, (333), 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) [2022-11-25 17:40:44,996 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 17:40:44,996 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 54 of 115 [2022-11-25 17:40:44,997 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 17:40:45,094 INFO L130 PetriNetUnfolder]: 37/92 cut-off events. [2022-11-25 17:40:45,095 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-25 17:40:45,095 INFO L83 FinitePrefix]: Finished finitePrefix Result has 199 conditions, 92 events. 37/92 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 277 event pairs, 36 based on Foata normal form. 0/63 useless extension candidates. Maximal degree in co-relation 191. Up to 89 conditions per place. [2022-11-25 17:40:45,096 INFO L137 encePairwiseOnDemand]: 112/115 looper letters, 15 selfloop transitions, 5 changer transitions 0/20 dead transitions. [2022-11-25 17:40:45,096 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 27 places, 20 transitions, 99 flow [2022-11-25 17:40:45,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-25 17:40:45,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-25 17:40:45,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 347 transitions. [2022-11-25 17:40:45,099 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5028985507246376 [2022-11-25 17:40:45,099 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 347 transitions. [2022-11-25 17:40:45,099 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 347 transitions. [2022-11-25 17:40:45,100 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 17:40:45,100 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 347 transitions. [2022-11-25 17:40:45,101 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 57.833333333333336) internal successors, (347), 6 states have internal predecessors, (347), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:40:45,104 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 115.0) internal successors, (805), 7 states have internal predecessors, (805), 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) [2022-11-25 17:40:45,104 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 115.0) internal successors, (805), 7 states have internal predecessors, (805), 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) [2022-11-25 17:40:45,105 INFO L175 Difference]: Start difference. First operand has 22 places, 17 transitions, 47 flow. Second operand 6 states and 347 transitions. [2022-11-25 17:40:45,105 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 27 places, 20 transitions, 99 flow [2022-11-25 17:40:45,106 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 26 places, 20 transitions, 95 flow, removed 1 selfloop flow, removed 1 redundant places. [2022-11-25 17:40:45,106 INFO L231 Difference]: Finished difference. Result has 29 places, 20 transitions, 79 flow [2022-11-25 17:40:45,107 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=115, PETRI_DIFFERENCE_MINUEND_FLOW=43, PETRI_DIFFERENCE_MINUEND_PLACES=21, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=17, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=14, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=79, PETRI_PLACES=29, PETRI_TRANSITIONS=20} [2022-11-25 17:40:45,108 INFO L288 CegarLoopForPetriNet]: 21 programPoint places, 8 predicate places. [2022-11-25 17:40:45,108 INFO L495 AbstractCegarLoop]: Abstraction has has 29 places, 20 transitions, 79 flow [2022-11-25 17:40:45,108 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 55.5) internal successors, (333), 6 states have internal predecessors, (333), 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) [2022-11-25 17:40:45,108 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 17:40:45,109 INFO L209 CegarLoopForPetriNet]: trace histogram [4, 1, 1, 1, 1, 1] [2022-11-25 17:40:45,127 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84fce847-dad7-4f08-81a4-e05f853a8017/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-25 17:40:45,326 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84fce847-dad7-4f08-81a4-e05f853a8017/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:40:45,326 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2022-11-25 17:40:45,327 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:40:45,327 INFO L85 PathProgramCache]: Analyzing trace with hash -724237208, now seen corresponding path program 2 times [2022-11-25 17:40:45,327 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:40:45,328 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1436146754] [2022-11-25 17:40:45,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:40:45,328 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:40:45,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:40:45,458 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-11-25 17:40:45,467 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:40:45,467 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1436146754] [2022-11-25 17:40:45,467 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1436146754] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:40:45,467 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:40:45,470 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-25 17:40:45,471 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1580530282] [2022-11-25 17:40:45,471 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:40:45,471 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 17:40:45,471 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:40:45,472 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 17:40:45,472 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 17:40:45,491 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 56 out of 115 [2022-11-25 17:40:45,492 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 29 places, 20 transitions, 79 flow. Second operand has 3 states, 3 states have (on average 58.0) internal successors, (174), 3 states have internal predecessors, (174), 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) [2022-11-25 17:40:45,492 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 17:40:45,493 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 56 of 115 [2022-11-25 17:40:45,493 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 17:40:45,558 INFO L130 PetriNetUnfolder]: 26/76 cut-off events. [2022-11-25 17:40:45,559 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-11-25 17:40:45,559 INFO L83 FinitePrefix]: Finished finitePrefix Result has 180 conditions, 76 events. 26/76 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 229 event pairs, 13 based on Foata normal form. 0/60 useless extension candidates. Maximal degree in co-relation 168. Up to 39 conditions per place. [2022-11-25 17:40:45,560 INFO L137 encePairwiseOnDemand]: 108/115 looper letters, 21 selfloop transitions, 5 changer transitions 4/30 dead transitions. [2022-11-25 17:40:45,560 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 31 places, 30 transitions, 159 flow [2022-11-25 17:40:45,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 17:40:45,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-25 17:40:45,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 196 transitions. [2022-11-25 17:40:45,562 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5681159420289855 [2022-11-25 17:40:45,563 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 196 transitions. [2022-11-25 17:40:45,563 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 196 transitions. [2022-11-25 17:40:45,563 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 17:40:45,563 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 196 transitions. [2022-11-25 17:40:45,564 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 65.33333333333333) internal successors, (196), 3 states have internal predecessors, (196), 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) [2022-11-25 17:40:45,566 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 115.0) internal successors, (460), 4 states have internal predecessors, (460), 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) [2022-11-25 17:40:45,566 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 115.0) internal successors, (460), 4 states have internal predecessors, (460), 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) [2022-11-25 17:40:45,566 INFO L175 Difference]: Start difference. First operand has 29 places, 20 transitions, 79 flow. Second operand 3 states and 196 transitions. [2022-11-25 17:40:45,567 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 31 places, 30 transitions, 159 flow [2022-11-25 17:40:45,568 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 30 places, 30 transitions, 145 flow, removed 6 selfloop flow, removed 1 redundant places. [2022-11-25 17:40:45,569 INFO L231 Difference]: Finished difference. Result has 32 places, 22 transitions, 97 flow [2022-11-25 17:40:45,569 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=115, PETRI_DIFFERENCE_MINUEND_FLOW=65, PETRI_DIFFERENCE_MINUEND_PLACES=28, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=20, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=97, PETRI_PLACES=32, PETRI_TRANSITIONS=22} [2022-11-25 17:40:45,570 INFO L288 CegarLoopForPetriNet]: 21 programPoint places, 11 predicate places. [2022-11-25 17:40:45,571 INFO L495 AbstractCegarLoop]: Abstraction has has 32 places, 22 transitions, 97 flow [2022-11-25 17:40:45,571 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 58.0) internal successors, (174), 3 states have internal predecessors, (174), 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) [2022-11-25 17:40:45,571 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 17:40:45,571 INFO L209 CegarLoopForPetriNet]: trace histogram [4, 1, 1, 1, 1, 1] [2022-11-25 17:40:45,572 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-25 17:40:45,572 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2022-11-25 17:40:45,572 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:40:45,573 INFO L85 PathProgramCache]: Analyzing trace with hash -724237200, now seen corresponding path program 1 times [2022-11-25 17:40:45,573 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:40:45,573 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [342238478] [2022-11-25 17:40:45,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:40:45,574 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:40:45,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:40:45,718 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-11-25 17:40:45,719 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:40:45,719 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [342238478] [2022-11-25 17:40:45,719 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [342238478] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:40:45,719 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:40:45,719 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-25 17:40:45,720 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1316098411] [2022-11-25 17:40:45,720 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:40:45,720 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 17:40:45,720 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:40:45,721 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 17:40:45,721 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 17:40:45,736 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 56 out of 115 [2022-11-25 17:40:45,736 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 32 places, 22 transitions, 97 flow. Second operand has 3 states, 3 states have (on average 58.0) internal successors, (174), 3 states have internal predecessors, (174), 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) [2022-11-25 17:40:45,736 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 17:40:45,737 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 56 of 115 [2022-11-25 17:40:45,737 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 17:40:45,785 INFO L130 PetriNetUnfolder]: 17/52 cut-off events. [2022-11-25 17:40:45,786 INFO L131 PetriNetUnfolder]: For 26/26 co-relation queries the response was YES. [2022-11-25 17:40:45,786 INFO L83 FinitePrefix]: Finished finitePrefix Result has 153 conditions, 52 events. 17/52 cut-off events. For 26/26 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 116 event pairs, 8 based on Foata normal form. 6/58 useless extension candidates. Maximal degree in co-relation 138. Up to 33 conditions per place. [2022-11-25 17:40:45,787 INFO L137 encePairwiseOnDemand]: 110/115 looper letters, 19 selfloop transitions, 3 changer transitions 2/24 dead transitions. [2022-11-25 17:40:45,787 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 34 places, 24 transitions, 145 flow [2022-11-25 17:40:45,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 17:40:45,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-25 17:40:45,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 190 transitions. [2022-11-25 17:40:45,789 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5507246376811594 [2022-11-25 17:40:45,789 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 190 transitions. [2022-11-25 17:40:45,789 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 190 transitions. [2022-11-25 17:40:45,789 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 17:40:45,790 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 190 transitions. [2022-11-25 17:40:45,790 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 63.333333333333336) internal successors, (190), 3 states have internal predecessors, (190), 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) [2022-11-25 17:40:45,792 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 115.0) internal successors, (460), 4 states have internal predecessors, (460), 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) [2022-11-25 17:40:45,792 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 115.0) internal successors, (460), 4 states have internal predecessors, (460), 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) [2022-11-25 17:40:45,792 INFO L175 Difference]: Start difference. First operand has 32 places, 22 transitions, 97 flow. Second operand 3 states and 190 transitions. [2022-11-25 17:40:45,792 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 34 places, 24 transitions, 145 flow [2022-11-25 17:40:45,794 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 32 places, 24 transitions, 135 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-25 17:40:45,795 INFO L231 Difference]: Finished difference. Result has 32 places, 20 transitions, 85 flow [2022-11-25 17:40:45,795 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=115, PETRI_DIFFERENCE_MINUEND_FLOW=79, PETRI_DIFFERENCE_MINUEND_PLACES=30, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=20, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=85, PETRI_PLACES=32, PETRI_TRANSITIONS=20} [2022-11-25 17:40:45,796 INFO L288 CegarLoopForPetriNet]: 21 programPoint places, 11 predicate places. [2022-11-25 17:40:45,796 INFO L495 AbstractCegarLoop]: Abstraction has has 32 places, 20 transitions, 85 flow [2022-11-25 17:40:45,797 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 58.0) internal successors, (174), 3 states have internal predecessors, (174), 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) [2022-11-25 17:40:45,797 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 17:40:45,797 INFO L209 CegarLoopForPetriNet]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:40:45,797 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-25 17:40:45,798 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2022-11-25 17:40:45,798 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:40:45,798 INFO L85 PathProgramCache]: Analyzing trace with hash -2129570124, now seen corresponding path program 1 times [2022-11-25 17:40:45,798 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:40:45,799 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1636498939] [2022-11-25 17:40:45,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:40:45,799 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:40:45,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:40:45,898 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-11-25 17:40:45,899 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:40:45,899 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1636498939] [2022-11-25 17:40:45,899 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1636498939] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:40:45,900 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:40:45,900 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 17:40:45,900 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1947001072] [2022-11-25 17:40:45,900 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:40:45,901 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 17:40:45,901 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:40:45,902 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 17:40:45,902 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 17:40:45,915 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 53 out of 115 [2022-11-25 17:40:45,916 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 32 places, 20 transitions, 85 flow. Second operand has 3 states, 3 states have (on average 56.0) internal successors, (168), 3 states have internal predecessors, (168), 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) [2022-11-25 17:40:45,916 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 17:40:45,916 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 53 of 115 [2022-11-25 17:40:45,917 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 17:40:45,957 INFO L130 PetriNetUnfolder]: 1/24 cut-off events. [2022-11-25 17:40:45,957 INFO L131 PetriNetUnfolder]: For 9/9 co-relation queries the response was YES. [2022-11-25 17:40:45,958 INFO L83 FinitePrefix]: Finished finitePrefix Result has 81 conditions, 24 events. 1/24 cut-off events. For 9/9 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 28 event pairs, 0 based on Foata normal form. 6/28 useless extension candidates. Maximal degree in co-relation 66. Up to 14 conditions per place. [2022-11-25 17:40:45,958 INFO L137 encePairwiseOnDemand]: 111/115 looper letters, 16 selfloop transitions, 4 changer transitions 0/20 dead transitions. [2022-11-25 17:40:45,958 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 34 places, 20 transitions, 125 flow [2022-11-25 17:40:45,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 17:40:45,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-25 17:40:45,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 177 transitions. [2022-11-25 17:40:45,960 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5130434782608696 [2022-11-25 17:40:45,960 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 177 transitions. [2022-11-25 17:40:45,961 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 177 transitions. [2022-11-25 17:40:45,961 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 17:40:45,961 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 177 transitions. [2022-11-25 17:40:45,962 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 59.0) internal successors, (177), 3 states have internal predecessors, (177), 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) [2022-11-25 17:40:45,963 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 115.0) internal successors, (460), 4 states have internal predecessors, (460), 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) [2022-11-25 17:40:45,964 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 115.0) internal successors, (460), 4 states have internal predecessors, (460), 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) [2022-11-25 17:40:45,964 INFO L175 Difference]: Start difference. First operand has 32 places, 20 transitions, 85 flow. Second operand 3 states and 177 transitions. [2022-11-25 17:40:45,964 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 34 places, 20 transitions, 125 flow [2022-11-25 17:40:45,966 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 32 places, 20 transitions, 117 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-25 17:40:45,967 INFO L231 Difference]: Finished difference. Result has 32 places, 20 transitions, 85 flow [2022-11-25 17:40:45,967 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=115, PETRI_DIFFERENCE_MINUEND_FLOW=77, PETRI_DIFFERENCE_MINUEND_PLACES=30, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=20, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=85, PETRI_PLACES=32, PETRI_TRANSITIONS=20} [2022-11-25 17:40:45,968 INFO L288 CegarLoopForPetriNet]: 21 programPoint places, 11 predicate places. [2022-11-25 17:40:45,968 INFO L495 AbstractCegarLoop]: Abstraction has has 32 places, 20 transitions, 85 flow [2022-11-25 17:40:45,969 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 56.0) internal successors, (168), 3 states have internal predecessors, (168), 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) [2022-11-25 17:40:45,972 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 17:40:45,972 INFO L209 CegarLoopForPetriNet]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:40:45,973 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-25 17:40:45,974 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2022-11-25 17:40:45,974 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:40:45,975 INFO L85 PathProgramCache]: Analyzing trace with hash -1591992558, now seen corresponding path program 1 times [2022-11-25 17:40:45,975 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:40:45,975 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [8831377] [2022-11-25 17:40:45,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:40:45,976 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:40:45,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:40:46,070 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:40:46,070 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:40:46,071 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [8831377] [2022-11-25 17:40:46,071 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [8831377] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 17:40:46,071 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2120661601] [2022-11-25 17:40:46,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:40:46,071 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:40:46,072 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84fce847-dad7-4f08-81a4-e05f853a8017/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:40:46,073 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84fce847-dad7-4f08-81a4-e05f853a8017/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 17:40:46,105 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84fce847-dad7-4f08-81a4-e05f853a8017/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-25 17:40:46,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:40:46,206 INFO L263 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-25 17:40:46,208 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:40:46,241 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:40:46,241 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 17:40:46,324 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:40:46,324 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2120661601] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 17:40:46,325 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-25 17:40:46,325 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 11 [2022-11-25 17:40:46,326 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [799682314] [2022-11-25 17:40:46,326 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-25 17:40:46,327 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-25 17:40:46,327 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:40:46,328 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-25 17:40:46,328 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2022-11-25 17:40:46,382 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 54 out of 115 [2022-11-25 17:40:46,384 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 32 places, 20 transitions, 85 flow. Second operand has 12 states, 12 states have (on average 55.583333333333336) internal successors, (667), 12 states have internal predecessors, (667), 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) [2022-11-25 17:40:46,385 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 17:40:46,385 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 54 of 115 [2022-11-25 17:40:46,385 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 17:40:46,461 INFO L130 PetriNetUnfolder]: 1/30 cut-off events. [2022-11-25 17:40:46,461 INFO L131 PetriNetUnfolder]: For 25/25 co-relation queries the response was YES. [2022-11-25 17:40:46,462 INFO L83 FinitePrefix]: Finished finitePrefix Result has 106 conditions, 30 events. 1/30 cut-off events. For 25/25 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 28 event pairs, 0 based on Foata normal form. 6/34 useless extension candidates. Maximal degree in co-relation 92. Up to 21 conditions per place. [2022-11-25 17:40:46,462 INFO L137 encePairwiseOnDemand]: 112/115 looper letters, 15 selfloop transitions, 11 changer transitions 0/26 dead transitions. [2022-11-25 17:40:46,462 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 26 transitions, 173 flow [2022-11-25 17:40:46,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-25 17:40:46,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2022-11-25 17:40:46,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 680 transitions. [2022-11-25 17:40:46,466 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4927536231884058 [2022-11-25 17:40:46,466 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 680 transitions. [2022-11-25 17:40:46,466 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 680 transitions. [2022-11-25 17:40:46,467 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 17:40:46,467 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 680 transitions. [2022-11-25 17:40:46,469 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 56.666666666666664) internal successors, (680), 12 states have internal predecessors, (680), 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) [2022-11-25 17:40:46,472 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 115.0) internal successors, (1495), 13 states have internal predecessors, (1495), 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) [2022-11-25 17:40:46,472 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 115.0) internal successors, (1495), 13 states have internal predecessors, (1495), 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) [2022-11-25 17:40:46,473 INFO L175 Difference]: Start difference. First operand has 32 places, 20 transitions, 85 flow. Second operand 12 states and 680 transitions. [2022-11-25 17:40:46,473 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 26 transitions, 173 flow [2022-11-25 17:40:46,480 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 26 transitions, 169 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-25 17:40:46,486 INFO L231 Difference]: Finished difference. Result has 48 places, 26 transitions, 165 flow [2022-11-25 17:40:46,487 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=115, PETRI_DIFFERENCE_MINUEND_FLOW=81, PETRI_DIFFERENCE_MINUEND_PLACES=31, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=20, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=14, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=165, PETRI_PLACES=48, PETRI_TRANSITIONS=26} [2022-11-25 17:40:46,490 INFO L288 CegarLoopForPetriNet]: 21 programPoint places, 27 predicate places. [2022-11-25 17:40:46,490 INFO L495 AbstractCegarLoop]: Abstraction has has 48 places, 26 transitions, 165 flow [2022-11-25 17:40:46,491 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 55.583333333333336) internal successors, (667), 12 states have internal predecessors, (667), 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) [2022-11-25 17:40:46,491 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 17:40:46,491 INFO L209 CegarLoopForPetriNet]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:40:46,509 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84fce847-dad7-4f08-81a4-e05f853a8017/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-25 17:40:46,699 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84fce847-dad7-4f08-81a4-e05f853a8017/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:40:46,700 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2022-11-25 17:40:46,700 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:40:46,700 INFO L85 PathProgramCache]: Analyzing trace with hash -787295672, now seen corresponding path program 1 times [2022-11-25 17:40:46,701 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:40:46,701 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1488324417] [2022-11-25 17:40:46,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:40:46,701 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:40:46,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:40:46,822 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-11-25 17:40:46,823 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:40:46,823 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1488324417] [2022-11-25 17:40:46,823 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1488324417] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:40:46,823 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:40:46,824 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 17:40:46,824 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [600615766] [2022-11-25 17:40:46,824 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:40:46,824 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 17:40:46,824 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:40:46,825 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 17:40:46,825 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-25 17:40:46,861 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 51 out of 115 [2022-11-25 17:40:46,862 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 26 transitions, 165 flow. Second operand has 5 states, 5 states have (on average 53.0) internal successors, (265), 5 states have internal predecessors, (265), 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) [2022-11-25 17:40:46,862 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 17:40:46,862 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 51 of 115 [2022-11-25 17:40:46,863 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 17:40:46,920 INFO L130 PetriNetUnfolder]: 1/29 cut-off events. [2022-11-25 17:40:46,920 INFO L131 PetriNetUnfolder]: For 31/31 co-relation queries the response was YES. [2022-11-25 17:40:46,920 INFO L83 FinitePrefix]: Finished finitePrefix Result has 131 conditions, 29 events. 1/29 cut-off events. For 31/31 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 22 event pairs, 0 based on Foata normal form. 0/28 useless extension candidates. Maximal degree in co-relation 109. Up to 18 conditions per place. [2022-11-25 17:40:46,921 INFO L137 encePairwiseOnDemand]: 108/115 looper letters, 21 selfloop transitions, 6 changer transitions 2/29 dead transitions. [2022-11-25 17:40:46,921 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 29 transitions, 230 flow [2022-11-25 17:40:46,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-25 17:40:46,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-11-25 17:40:46,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 275 transitions. [2022-11-25 17:40:46,923 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4782608695652174 [2022-11-25 17:40:46,923 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 275 transitions. [2022-11-25 17:40:46,923 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 275 transitions. [2022-11-25 17:40:46,924 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 17:40:46,924 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 275 transitions. [2022-11-25 17:40:46,925 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 55.0) internal successors, (275), 5 states have internal predecessors, (275), 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) [2022-11-25 17:40:46,926 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 115.0) internal successors, (690), 6 states have internal predecessors, (690), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:40:46,927 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 115.0) internal successors, (690), 6 states have internal predecessors, (690), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:40:46,927 INFO L175 Difference]: Start difference. First operand has 48 places, 26 transitions, 165 flow. Second operand 5 states and 275 transitions. [2022-11-25 17:40:46,927 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 29 transitions, 230 flow [2022-11-25 17:40:46,930 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 29 transitions, 182 flow, removed 19 selfloop flow, removed 5 redundant places. [2022-11-25 17:40:46,931 INFO L231 Difference]: Finished difference. Result has 46 places, 25 transitions, 126 flow [2022-11-25 17:40:46,932 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=115, PETRI_DIFFERENCE_MINUEND_FLOW=114, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=25, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=126, PETRI_PLACES=46, PETRI_TRANSITIONS=25} [2022-11-25 17:40:46,932 INFO L288 CegarLoopForPetriNet]: 21 programPoint places, 25 predicate places. [2022-11-25 17:40:46,933 INFO L495 AbstractCegarLoop]: Abstraction has has 46 places, 25 transitions, 126 flow [2022-11-25 17:40:46,933 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 53.0) internal successors, (265), 5 states have internal predecessors, (265), 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) [2022-11-25 17:40:46,933 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 17:40:46,933 INFO L209 CegarLoopForPetriNet]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:40:46,933 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-25 17:40:46,934 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2022-11-25 17:40:46,934 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:40:46,935 INFO L85 PathProgramCache]: Analyzing trace with hash -787295680, now seen corresponding path program 1 times [2022-11-25 17:40:46,935 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:40:46,935 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2104398557] [2022-11-25 17:40:46,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:40:46,936 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:40:46,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:40:47,045 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-11-25 17:40:47,046 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:40:47,046 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2104398557] [2022-11-25 17:40:47,046 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2104398557] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:40:47,047 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:40:47,047 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 17:40:47,047 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [93585523] [2022-11-25 17:40:47,047 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:40:47,048 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 17:40:47,048 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:40:47,048 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 17:40:47,049 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-25 17:40:47,072 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 51 out of 115 [2022-11-25 17:40:47,073 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 25 transitions, 126 flow. Second operand has 5 states, 5 states have (on average 53.0) internal successors, (265), 5 states have internal predecessors, (265), 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) [2022-11-25 17:40:47,073 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 17:40:47,073 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 51 of 115 [2022-11-25 17:40:47,073 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 17:40:47,137 INFO L130 PetriNetUnfolder]: 1/27 cut-off events. [2022-11-25 17:40:47,137 INFO L131 PetriNetUnfolder]: For 49/49 co-relation queries the response was YES. [2022-11-25 17:40:47,137 INFO L83 FinitePrefix]: Finished finitePrefix Result has 107 conditions, 27 events. 1/27 cut-off events. For 49/49 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 14 event pairs, 0 based on Foata normal form. 1/28 useless extension candidates. Maximal degree in co-relation 85. Up to 17 conditions per place. [2022-11-25 17:40:47,138 INFO L137 encePairwiseOnDemand]: 109/115 looper letters, 18 selfloop transitions, 3 changer transitions 6/27 dead transitions. [2022-11-25 17:40:47,138 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 27 transitions, 182 flow [2022-11-25 17:40:47,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-25 17:40:47,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-25 17:40:47,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 324 transitions. [2022-11-25 17:40:47,140 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.46956521739130436 [2022-11-25 17:40:47,141 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 324 transitions. [2022-11-25 17:40:47,141 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 324 transitions. [2022-11-25 17:40:47,141 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 17:40:47,142 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 324 transitions. [2022-11-25 17:40:47,143 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 54.0) internal successors, (324), 6 states have internal predecessors, (324), 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) [2022-11-25 17:40:47,144 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 115.0) internal successors, (805), 7 states have internal predecessors, (805), 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) [2022-11-25 17:40:47,145 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 115.0) internal successors, (805), 7 states have internal predecessors, (805), 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) [2022-11-25 17:40:47,145 INFO L175 Difference]: Start difference. First operand has 46 places, 25 transitions, 126 flow. Second operand 6 states and 324 transitions. [2022-11-25 17:40:47,145 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 27 transitions, 182 flow [2022-11-25 17:40:47,147 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 27 transitions, 176 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-25 17:40:47,148 INFO L231 Difference]: Finished difference. Result has 48 places, 21 transitions, 110 flow [2022-11-25 17:40:47,148 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=115, PETRI_DIFFERENCE_MINUEND_FLOW=114, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=24, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=110, PETRI_PLACES=48, PETRI_TRANSITIONS=21} [2022-11-25 17:40:47,149 INFO L288 CegarLoopForPetriNet]: 21 programPoint places, 27 predicate places. [2022-11-25 17:40:47,150 INFO L495 AbstractCegarLoop]: Abstraction has has 48 places, 21 transitions, 110 flow [2022-11-25 17:40:47,150 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 53.0) internal successors, (265), 5 states have internal predecessors, (265), 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) [2022-11-25 17:40:47,150 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 17:40:47,150 INFO L209 CegarLoopForPetriNet]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:40:47,151 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-25 17:40:47,151 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2022-11-25 17:40:47,151 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:40:47,152 INFO L85 PathProgramCache]: Analyzing trace with hash -1407879972, now seen corresponding path program 1 times [2022-11-25 17:40:47,152 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:40:47,152 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [990967624] [2022-11-25 17:40:47,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:40:47,153 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:40:47,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:40:47,255 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-11-25 17:40:47,255 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:40:47,255 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [990967624] [2022-11-25 17:40:47,256 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [990967624] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:40:47,256 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:40:47,256 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 17:40:47,256 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1734517855] [2022-11-25 17:40:47,257 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:40:47,257 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 17:40:47,257 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:40:47,258 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 17:40:47,258 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-25 17:40:47,278 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 52 out of 115 [2022-11-25 17:40:47,278 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 21 transitions, 110 flow. Second operand has 5 states, 5 states have (on average 54.0) internal successors, (270), 5 states have internal predecessors, (270), 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) [2022-11-25 17:40:47,279 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 17:40:47,279 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 52 of 115 [2022-11-25 17:40:47,279 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 17:40:47,316 INFO L130 PetriNetUnfolder]: 1/21 cut-off events. [2022-11-25 17:40:47,316 INFO L131 PetriNetUnfolder]: For 49/49 co-relation queries the response was YES. [2022-11-25 17:40:47,316 INFO L83 FinitePrefix]: Finished finitePrefix Result has 92 conditions, 21 events. 1/21 cut-off events. For 49/49 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 2 event pairs, 0 based on Foata normal form. 1/22 useless extension candidates. Maximal degree in co-relation 69. Up to 17 conditions per place. [2022-11-25 17:40:47,317 INFO L137 encePairwiseOnDemand]: 110/115 looper letters, 16 selfloop transitions, 4 changer transitions 1/21 dead transitions. [2022-11-25 17:40:47,317 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 44 places, 21 transitions, 150 flow [2022-11-25 17:40:47,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-25 17:40:47,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-11-25 17:40:47,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 272 transitions. [2022-11-25 17:40:47,319 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.47304347826086957 [2022-11-25 17:40:47,319 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 272 transitions. [2022-11-25 17:40:47,319 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 272 transitions. [2022-11-25 17:40:47,320 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 17:40:47,320 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 272 transitions. [2022-11-25 17:40:47,321 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 54.4) internal successors, (272), 5 states have internal predecessors, (272), 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) [2022-11-25 17:40:47,322 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 115.0) internal successors, (690), 6 states have internal predecessors, (690), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:40:47,323 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 115.0) internal successors, (690), 6 states have internal predecessors, (690), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:40:47,323 INFO L175 Difference]: Start difference. First operand has 48 places, 21 transitions, 110 flow. Second operand 5 states and 272 transitions. [2022-11-25 17:40:47,323 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 44 places, 21 transitions, 150 flow [2022-11-25 17:40:47,325 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 21 transitions, 140 flow, removed 1 selfloop flow, removed 4 redundant places. [2022-11-25 17:40:47,325 INFO L231 Difference]: Finished difference. Result has 40 places, 20 transitions, 103 flow [2022-11-25 17:40:47,326 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=115, PETRI_DIFFERENCE_MINUEND_FLOW=95, PETRI_DIFFERENCE_MINUEND_PLACES=36, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=20, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=103, PETRI_PLACES=40, PETRI_TRANSITIONS=20} [2022-11-25 17:40:47,326 INFO L288 CegarLoopForPetriNet]: 21 programPoint places, 19 predicate places. [2022-11-25 17:40:47,327 INFO L495 AbstractCegarLoop]: Abstraction has has 40 places, 20 transitions, 103 flow [2022-11-25 17:40:47,327 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 54.0) internal successors, (270), 5 states have internal predecessors, (270), 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) [2022-11-25 17:40:47,327 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 17:40:47,327 INFO L209 CegarLoopForPetriNet]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:40:47,328 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-25 17:40:47,328 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2022-11-25 17:40:47,329 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:40:47,329 INFO L85 PathProgramCache]: Analyzing trace with hash -1407879982, now seen corresponding path program 2 times [2022-11-25 17:40:47,329 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:40:47,329 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [974971160] [2022-11-25 17:40:47,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:40:47,330 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:40:47,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:40:47,456 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-11-25 17:40:47,456 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:40:47,456 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [974971160] [2022-11-25 17:40:47,457 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [974971160] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:40:47,457 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:40:47,457 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 17:40:47,458 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1525667473] [2022-11-25 17:40:47,458 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:40:47,458 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 17:40:47,458 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:40:47,459 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 17:40:47,459 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-25 17:40:47,485 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 52 out of 115 [2022-11-25 17:40:47,486 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 20 transitions, 103 flow. Second operand has 5 states, 5 states have (on average 54.0) internal successors, (270), 5 states have internal predecessors, (270), 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) [2022-11-25 17:40:47,487 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 17:40:47,487 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 52 of 115 [2022-11-25 17:40:47,487 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 17:40:47,527 INFO L130 PetriNetUnfolder]: 1/20 cut-off events. [2022-11-25 17:40:47,527 INFO L131 PetriNetUnfolder]: For 47/47 co-relation queries the response was YES. [2022-11-25 17:40:47,528 INFO L83 FinitePrefix]: Finished finitePrefix Result has 87 conditions, 20 events. 1/20 cut-off events. For 47/47 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 2 event pairs, 0 based on Foata normal form. 1/21 useless extension candidates. Maximal degree in co-relation 66. Up to 16 conditions per place. [2022-11-25 17:40:47,528 INFO L137 encePairwiseOnDemand]: 111/115 looper letters, 0 selfloop transitions, 0 changer transitions 20/20 dead transitions. [2022-11-25 17:40:47,528 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 20 transitions, 141 flow [2022-11-25 17:40:47,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-25 17:40:47,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-11-25 17:40:47,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 271 transitions. [2022-11-25 17:40:47,531 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.47130434782608693 [2022-11-25 17:40:47,531 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 271 transitions. [2022-11-25 17:40:47,531 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 271 transitions. [2022-11-25 17:40:47,532 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 17:40:47,532 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 271 transitions. [2022-11-25 17:40:47,533 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 54.2) internal successors, (271), 5 states have internal predecessors, (271), 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) [2022-11-25 17:40:47,535 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 115.0) internal successors, (690), 6 states have internal predecessors, (690), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:40:47,535 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 115.0) internal successors, (690), 6 states have internal predecessors, (690), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:40:47,536 INFO L175 Difference]: Start difference. First operand has 40 places, 20 transitions, 103 flow. Second operand 5 states and 271 transitions. [2022-11-25 17:40:47,536 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 20 transitions, 141 flow [2022-11-25 17:40:47,538 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 20 transitions, 134 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-11-25 17:40:47,539 INFO L231 Difference]: Finished difference. Result has 39 places, 0 transitions, 0 flow [2022-11-25 17:40:47,539 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=115, PETRI_DIFFERENCE_MINUEND_FLOW=91, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=19, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=0, PETRI_PLACES=39, PETRI_TRANSITIONS=0} [2022-11-25 17:40:47,540 INFO L288 CegarLoopForPetriNet]: 21 programPoint places, 18 predicate places. [2022-11-25 17:40:47,540 INFO L495 AbstractCegarLoop]: Abstraction has has 39 places, 0 transitions, 0 flow [2022-11-25 17:40:47,540 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 54.0) internal successors, (270), 5 states have internal predecessors, (270), 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) [2022-11-25 17:40:47,544 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 9 remaining) [2022-11-25 17:40:47,544 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 9 remaining) [2022-11-25 17:40:47,545 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 9 remaining) [2022-11-25 17:40:47,545 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 9 remaining) [2022-11-25 17:40:47,545 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 9 remaining) [2022-11-25 17:40:47,546 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 9 remaining) [2022-11-25 17:40:47,546 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 9 remaining) [2022-11-25 17:40:47,546 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 9 remaining) [2022-11-25 17:40:47,547 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 9 remaining) [2022-11-25 17:40:47,547 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-25 17:40:47,547 INFO L445 BasicCegarLoop]: Path program histogram: [2, 2, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:40:47,554 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-25 17:40:47,554 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-25 17:40:47,558 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 05:40:47 BasicIcfg [2022-11-25 17:40:47,559 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-25 17:40:47,559 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-25 17:40:47,560 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-25 17:40:47,560 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-25 17:40:47,560 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:40:41" (3/4) ... [2022-11-25 17:40:47,563 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-25 17:40:47,571 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2022-11-25 17:40:47,575 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2022-11-25 17:40:47,576 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2022-11-25 17:40:47,576 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-25 17:40:47,610 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84fce847-dad7-4f08-81a4-e05f853a8017/bin/uautomizer-ZsLfNo2U6R/witness.graphml [2022-11-25 17:40:47,610 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-25 17:40:47,611 INFO L158 Benchmark]: Toolchain (without parser) took 7116.22ms. Allocated memory was 151.0MB in the beginning and 234.9MB in the end (delta: 83.9MB). Free memory was 115.8MB in the beginning and 182.4MB in the end (delta: -66.6MB). Peak memory consumption was 19.2MB. Max. memory is 16.1GB. [2022-11-25 17:40:47,611 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 151.0MB. Free memory is still 95.1MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 17:40:47,611 INFO L158 Benchmark]: CACSL2BoogieTranslator took 581.81ms. Allocated memory is still 151.0MB. Free memory was 115.8MB in the beginning and 96.9MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-11-25 17:40:47,612 INFO L158 Benchmark]: Boogie Procedure Inliner took 41.98ms. Allocated memory is still 151.0MB. Free memory was 96.9MB in the beginning and 95.2MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 17:40:47,612 INFO L158 Benchmark]: Boogie Preprocessor took 29.83ms. Allocated memory is still 151.0MB. Free memory was 95.2MB in the beginning and 93.6MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 17:40:47,613 INFO L158 Benchmark]: RCFGBuilder took 419.91ms. Allocated memory is still 151.0MB. Free memory was 93.6MB in the beginning and 81.4MB in the end (delta: 12.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-25 17:40:47,613 INFO L158 Benchmark]: TraceAbstraction took 5982.20ms. Allocated memory was 151.0MB in the beginning and 234.9MB in the end (delta: 83.9MB). Free memory was 80.5MB in the beginning and 184.5MB in the end (delta: -103.9MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 17:40:47,613 INFO L158 Benchmark]: Witness Printer took 50.68ms. Allocated memory is still 234.9MB. Free memory was 184.5MB in the beginning and 182.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 17:40:47,615 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 151.0MB. Free memory is still 95.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 581.81ms. Allocated memory is still 151.0MB. Free memory was 115.8MB in the beginning and 96.9MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 41.98ms. Allocated memory is still 151.0MB. Free memory was 96.9MB in the beginning and 95.2MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 29.83ms. Allocated memory is still 151.0MB. Free memory was 95.2MB in the beginning and 93.6MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 419.91ms. Allocated memory is still 151.0MB. Free memory was 93.6MB in the beginning and 81.4MB in the end (delta: 12.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 5982.20ms. Allocated memory was 151.0MB in the beginning and 234.9MB in the end (delta: 83.9MB). Free memory was 80.5MB in the beginning and 184.5MB in the end (delta: -103.9MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 50.68ms. Allocated memory is still 234.9MB. Free memory was 184.5MB in the beginning and 182.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2.0s, 62 PlacesBefore, 21 PlacesAfterwards, 60 TransitionsBefore, 18 TransitionsAfterwards, 468 CoEnabledTransitionPairs, 4 FixpointIterations, 24 TrivialSequentialCompositions, 27 ConcurrentSequentialCompositions, 2 TrivialYvCompositions, 0 ConcurrentYvCompositions, 1 ChoiceCompositions, 54 TotalNumberOfCompositions, 868 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 549, independent: 479, independent conditional: 0, independent unconditional: 479, dependent: 70, dependent conditional: 0, dependent unconditional: 70, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 354, independent: 328, independent conditional: 0, independent unconditional: 328, dependent: 26, dependent conditional: 0, dependent unconditional: 26, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 354, independent: 323, independent conditional: 0, independent unconditional: 323, dependent: 31, dependent conditional: 0, dependent unconditional: 31, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 31, independent: 5, independent conditional: 0, independent unconditional: 5, dependent: 26, dependent conditional: 0, dependent unconditional: 26, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 118, independent: 19, independent conditional: 0, independent unconditional: 19, dependent: 99, dependent conditional: 0, dependent unconditional: 99, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 549, independent: 151, independent conditional: 0, independent unconditional: 151, dependent: 44, dependent conditional: 0, dependent unconditional: 44, unknown: 354, unknown conditional: 0, unknown unconditional: 354] , Statistics on independence cache: Total cache size (in pairs): 28, Positive cache size: 16, Positive conditional cache size: 0, Positive unconditional cache size: 16, Negative cache size: 12, Negative conditional cache size: 0, Negative unconditional cache size: 12, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 688]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 688]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 693]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 693]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 683]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 683]: 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, 75 locations, 9 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 5.8s, OverallIterations: 11, TraceHistogramMax: 10, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 1.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 270 SdHoareTripleChecker+Valid, 0.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 170 mSDsluCounter, 62 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 24 mSDsCounter, 66 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 560 IncrementalHoareTripleChecker+Invalid, 626 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 66 mSolverCounterUnsat, 38 mSDtfsCounter, 560 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 68 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=165occurred in iteration=7, InterpolantAutomatonStates: 54, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.2s InterpolantComputationTime, 151 NumberOfCodeBlocks, 151 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 155 ConstructedInterpolants, 0 QuantifiedInterpolants, 385 SizeOfPredicates, 0 NumberOfNonLiveVariables, 194 ConjunctsInSsa, 9 ConjunctsInUnsatCore, 15 InterpolantComputations, 9 PerfectInterpolantSequences, 250/283 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 6 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-11-25 17:40:47,639 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84fce847-dad7-4f08-81a4-e05f853a8017/bin/uautomizer-ZsLfNo2U6R/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