./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/goblint-regression/04-mutex_46-escape_nr.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version b5237d83 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15983043-6c25-4520-80b1-c1585ba5927a/bin/uautomizer-vX5HgA9Q3a/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15983043-6c25-4520-80b1-c1585ba5927a/bin/uautomizer-vX5HgA9Q3a/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15983043-6c25-4520-80b1-c1585ba5927a/bin/uautomizer-vX5HgA9Q3a/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15983043-6c25-4520-80b1-c1585ba5927a/bin/uautomizer-vX5HgA9Q3a/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/04-mutex_46-escape_nr.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15983043-6c25-4520-80b1-c1585ba5927a/bin/uautomizer-vX5HgA9Q3a/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15983043-6c25-4520-80b1-c1585ba5927a/bin/uautomizer-vX5HgA9Q3a --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash b71c523f20411078d17c9943b891d34ddfc00131917c4009fb579cdffacef23c --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-b5237d8 [2022-11-21 16:30:44,244 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-21 16:30:44,246 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-21 16:30:44,272 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-21 16:30:44,272 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-21 16:30:44,273 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-21 16:30:44,275 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-21 16:30:44,277 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-21 16:30:44,278 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-21 16:30:44,279 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-21 16:30:44,280 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-21 16:30:44,282 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-21 16:30:44,282 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-21 16:30:44,283 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-21 16:30:44,285 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-21 16:30:44,286 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-21 16:30:44,287 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-21 16:30:44,288 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-21 16:30:44,290 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-21 16:30:44,292 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-21 16:30:44,293 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-21 16:30:44,300 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-21 16:30:44,307 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-21 16:30:44,308 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-21 16:30:44,317 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-21 16:30:44,320 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-21 16:30:44,320 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-21 16:30:44,321 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-21 16:30:44,323 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-21 16:30:44,324 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-21 16:30:44,325 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-21 16:30:44,326 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-21 16:30:44,328 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-21 16:30:44,329 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-21 16:30:44,331 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-21 16:30:44,331 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-21 16:30:44,332 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-21 16:30:44,332 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-21 16:30:44,332 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-21 16:30:44,334 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-21 16:30:44,335 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-21 16:30:44,336 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15983043-6c25-4520-80b1-c1585ba5927a/bin/uautomizer-vX5HgA9Q3a/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-11-21 16:30:44,384 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-21 16:30:44,384 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-21 16:30:44,385 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-21 16:30:44,385 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-21 16:30:44,386 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-21 16:30:44,386 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-21 16:30:44,387 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-21 16:30:44,387 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-21 16:30:44,387 INFO L138 SettingsManager]: * Use SBE=true [2022-11-21 16:30:44,388 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-21 16:30:44,389 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-21 16:30:44,389 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-21 16:30:44,389 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-21 16:30:44,389 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-21 16:30:44,390 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-21 16:30:44,390 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-21 16:30:44,390 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-21 16:30:44,390 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-21 16:30:44,391 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-21 16:30:44,391 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-21 16:30:44,391 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-21 16:30:44,391 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-21 16:30:44,392 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-21 16:30:44,392 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-21 16:30:44,392 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-21 16:30:44,392 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-21 16:30:44,393 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 16:30:44,393 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-21 16:30:44,393 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-21 16:30:44,394 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-21 16:30:44,394 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-21 16:30:44,394 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-21 16:30:44,394 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-21 16:30:44,395 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-21 16:30:44,395 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-21 16:30:44,395 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15983043-6c25-4520-80b1-c1585ba5927a/bin/uautomizer-vX5HgA9Q3a/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15983043-6c25-4520-80b1-c1585ba5927a/bin/uautomizer-vX5HgA9Q3a Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b71c523f20411078d17c9943b891d34ddfc00131917c4009fb579cdffacef23c [2022-11-21 16:30:44,688 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-21 16:30:44,739 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-21 16:30:44,741 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-21 16:30:44,742 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-21 16:30:44,743 INFO L275 PluginConnector]: CDTParser initialized [2022-11-21 16:30:44,744 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15983043-6c25-4520-80b1-c1585ba5927a/bin/uautomizer-vX5HgA9Q3a/../../sv-benchmarks/c/goblint-regression/04-mutex_46-escape_nr.i [2022-11-21 16:30:47,849 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-21 16:30:48,162 INFO L351 CDTParser]: Found 1 translation units. [2022-11-21 16:30:48,173 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15983043-6c25-4520-80b1-c1585ba5927a/sv-benchmarks/c/goblint-regression/04-mutex_46-escape_nr.i [2022-11-21 16:30:48,198 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15983043-6c25-4520-80b1-c1585ba5927a/bin/uautomizer-vX5HgA9Q3a/data/656c61e8a/a62de759e8e04438bea3949e50e4d357/FLAGb9abea235 [2022-11-21 16:30:48,211 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15983043-6c25-4520-80b1-c1585ba5927a/bin/uautomizer-vX5HgA9Q3a/data/656c61e8a/a62de759e8e04438bea3949e50e4d357 [2022-11-21 16:30:48,214 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-21 16:30:48,215 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-21 16:30:48,217 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-21 16:30:48,217 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-21 16:30:48,221 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-21 16:30:48,221 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 04:30:48" (1/1) ... [2022-11-21 16:30:48,223 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@344ee4d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:30:48, skipping insertion in model container [2022-11-21 16:30:48,223 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 04:30:48" (1/1) ... [2022-11-21 16:30:48,231 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-21 16:30:48,276 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-21 16:30:48,755 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 16:30:48,775 INFO L203 MainTranslator]: Completed pre-run [2022-11-21 16:30:48,844 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 16:30:48,947 INFO L208 MainTranslator]: Completed translation [2022-11-21 16:30:48,948 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:30:48 WrapperNode [2022-11-21 16:30:48,948 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-21 16:30:48,949 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-21 16:30:48,949 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-21 16:30:48,949 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-21 16:30:48,975 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:30:48" (1/1) ... [2022-11-21 16:30:49,017 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:30:48" (1/1) ... [2022-11-21 16:30:49,054 INFO L138 Inliner]: procedures = 263, calls = 27, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 64 [2022-11-21 16:30:49,055 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-21 16:30:49,055 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-21 16:30:49,055 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-21 16:30:49,056 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-21 16:30:49,065 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:30:48" (1/1) ... [2022-11-21 16:30:49,065 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:30:48" (1/1) ... [2022-11-21 16:30:49,077 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:30:48" (1/1) ... [2022-11-21 16:30:49,079 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:30:48" (1/1) ... [2022-11-21 16:30:49,089 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:30:48" (1/1) ... [2022-11-21 16:30:49,097 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:30:48" (1/1) ... [2022-11-21 16:30:49,099 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:30:48" (1/1) ... [2022-11-21 16:30:49,100 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:30:48" (1/1) ... [2022-11-21 16:30:49,102 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-21 16:30:49,103 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-21 16:30:49,103 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-21 16:30:49,103 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-21 16:30:49,104 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:30:48" (1/1) ... [2022-11-21 16:30:49,111 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 16:30:49,122 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15983043-6c25-4520-80b1-c1585ba5927a/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 16:30:49,140 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15983043-6c25-4520-80b1-c1585ba5927a/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-21 16:30:49,162 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15983043-6c25-4520-80b1-c1585ba5927a/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-21 16:30:49,186 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-21 16:30:49,187 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-21 16:30:49,187 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-21 16:30:49,187 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-21 16:30:49,187 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-21 16:30:49,187 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-21 16:30:49,188 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-11-21 16:30:49,188 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-11-21 16:30:49,188 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-21 16:30:49,188 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-21 16:30:49,188 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-21 16:30:49,190 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-21 16:30:49,335 INFO L235 CfgBuilder]: Building ICFG [2022-11-21 16:30:49,349 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-21 16:30:49,582 INFO L276 CfgBuilder]: Performing block encoding [2022-11-21 16:30:49,590 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-21 16:30:49,591 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-21 16:30:49,593 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 04:30:49 BoogieIcfgContainer [2022-11-21 16:30:49,593 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-21 16:30:49,595 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-21 16:30:49,595 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-21 16:30:49,598 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-21 16:30:49,599 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 04:30:48" (1/3) ... [2022-11-21 16:30:49,599 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3cdabaf4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 04:30:49, skipping insertion in model container [2022-11-21 16:30:49,599 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:30:48" (2/3) ... [2022-11-21 16:30:49,600 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3cdabaf4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 04:30:49, skipping insertion in model container [2022-11-21 16:30:49,600 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 04:30:49" (3/3) ... [2022-11-21 16:30:49,604 INFO L112 eAbstractionObserver]: Analyzing ICFG 04-mutex_46-escape_nr.i [2022-11-21 16:30:49,615 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-21 16:30:49,625 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-21 16:30:49,626 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2022-11-21 16:30:49,626 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-21 16:30:49,689 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-11-21 16:30:49,730 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 88 places, 85 transitions, 178 flow [2022-11-21 16:30:49,781 INFO L130 PetriNetUnfolder]: 1/84 cut-off events. [2022-11-21 16:30:49,781 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-21 16:30:49,789 INFO L83 FinitePrefix]: Finished finitePrefix Result has 89 conditions, 84 events. 1/84 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 69 event pairs, 0 based on Foata normal form. 0/79 useless extension candidates. Maximal degree in co-relation 6. Up to 2 conditions per place. [2022-11-21 16:30:49,791 INFO L82 GeneralOperation]: Start removeDead. Operand has 88 places, 85 transitions, 178 flow [2022-11-21 16:30:49,795 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 71 places, 67 transitions, 137 flow [2022-11-21 16:30:49,812 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-21 16:30:49,817 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;@1ab84f5f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-21 16:30:49,818 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2022-11-21 16:30:49,839 INFO L130 PetriNetUnfolder]: 0/48 cut-off events. [2022-11-21 16:30:49,842 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-21 16:30:49,842 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:30:49,843 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:30:49,843 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-21 16:30:49,849 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:30:49,849 INFO L85 PathProgramCache]: Analyzing trace with hash 962402375, now seen corresponding path program 1 times [2022-11-21 16:30:49,859 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:30:49,859 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [393675251] [2022-11-21 16:30:49,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:30:49,860 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:30:50,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:30:50,645 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:30:50,646 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:30:50,646 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [393675251] [2022-11-21 16:30:50,647 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [393675251] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:30:50,648 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:30:50,648 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-21 16:30:50,650 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [963088664] [2022-11-21 16:30:50,651 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:30:50,664 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-21 16:30:50,664 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:30:50,710 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-21 16:30:50,712 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2022-11-21 16:30:50,717 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 46 out of 85 [2022-11-21 16:30:50,721 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 71 places, 67 transitions, 137 flow. Second operand has 9 states, 9 states have (on average 48.111111111111114) internal successors, (433), 9 states have internal predecessors, (433), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:30:50,721 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:30:50,722 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 46 of 85 [2022-11-21 16:30:50,723 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:30:51,004 INFO L130 PetriNetUnfolder]: 18/142 cut-off events. [2022-11-21 16:30:51,004 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-21 16:30:51,005 INFO L83 FinitePrefix]: Finished finitePrefix Result has 218 conditions, 142 events. 18/142 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 482 event pairs, 0 based on Foata normal form. 0/135 useless extension candidates. Maximal degree in co-relation 161. Up to 21 conditions per place. [2022-11-21 16:30:51,007 INFO L137 encePairwiseOnDemand]: 72/85 looper letters, 27 selfloop transitions, 15 changer transitions 9/90 dead transitions. [2022-11-21 16:30:51,007 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 82 places, 90 transitions, 285 flow [2022-11-21 16:30:51,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-21 16:30:51,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2022-11-21 16:30:51,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 605 transitions. [2022-11-21 16:30:51,036 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5931372549019608 [2022-11-21 16:30:51,037 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 605 transitions. [2022-11-21 16:30:51,038 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 605 transitions. [2022-11-21 16:30:51,042 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:30:51,045 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 605 transitions. [2022-11-21 16:30:51,051 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 50.416666666666664) internal successors, (605), 12 states have internal predecessors, (605), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:30:51,060 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 85.0) internal successors, (1105), 13 states have internal predecessors, (1105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:30:51,061 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 85.0) internal successors, (1105), 13 states have internal predecessors, (1105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:30:51,063 INFO L175 Difference]: Start difference. First operand has 71 places, 67 transitions, 137 flow. Second operand 12 states and 605 transitions. [2022-11-21 16:30:51,064 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 82 places, 90 transitions, 285 flow [2022-11-21 16:30:51,070 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 81 places, 90 transitions, 284 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-21 16:30:51,075 INFO L231 Difference]: Finished difference. Result has 85 places, 73 transitions, 203 flow [2022-11-21 16:30:51,077 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=85, PETRI_DIFFERENCE_MINUEND_FLOW=136, PETRI_DIFFERENCE_MINUEND_PLACES=70, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=67, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=55, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=203, PETRI_PLACES=85, PETRI_TRANSITIONS=73} [2022-11-21 16:30:51,084 INFO L288 CegarLoopForPetriNet]: 71 programPoint places, 14 predicate places. [2022-11-21 16:30:51,084 INFO L495 AbstractCegarLoop]: Abstraction has has 85 places, 73 transitions, 203 flow [2022-11-21 16:30:51,085 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 48.111111111111114) internal successors, (433), 9 states have internal predecessors, (433), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:30:51,085 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:30:51,086 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:30:51,087 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-21 16:30:51,088 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-21 16:30:51,088 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:30:51,089 INFO L85 PathProgramCache]: Analyzing trace with hash -1087476687, now seen corresponding path program 1 times [2022-11-21 16:30:51,089 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:30:51,090 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [687207922] [2022-11-21 16:30:51,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:30:51,090 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:30:51,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:30:51,632 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:30:51,632 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:30:51,633 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [687207922] [2022-11-21 16:30:51,633 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [687207922] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:30:51,633 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:30:51,633 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-21 16:30:51,635 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [409684483] [2022-11-21 16:30:51,635 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:30:51,637 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-21 16:30:51,638 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:30:51,641 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-21 16:30:51,642 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-11-21 16:30:51,645 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 44 out of 85 [2022-11-21 16:30:51,646 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 85 places, 73 transitions, 203 flow. Second operand has 12 states, 12 states have (on average 45.75) internal successors, (549), 12 states have internal predecessors, (549), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:30:51,646 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:30:51,646 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 44 of 85 [2022-11-21 16:30:51,647 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:30:52,193 INFO L130 PetriNetUnfolder]: 28/176 cut-off events. [2022-11-21 16:30:52,194 INFO L131 PetriNetUnfolder]: For 39/39 co-relation queries the response was YES. [2022-11-21 16:30:52,203 INFO L83 FinitePrefix]: Finished finitePrefix Result has 363 conditions, 176 events. 28/176 cut-off events. For 39/39 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 704 event pairs, 5 based on Foata normal form. 0/167 useless extension candidates. Maximal degree in co-relation 296. Up to 32 conditions per place. [2022-11-21 16:30:52,204 INFO L137 encePairwiseOnDemand]: 69/85 looper letters, 33 selfloop transitions, 22 changer transitions 2/97 dead transitions. [2022-11-21 16:30:52,205 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 99 places, 97 transitions, 397 flow [2022-11-21 16:30:52,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-21 16:30:52,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2022-11-21 16:30:52,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 717 transitions. [2022-11-21 16:30:52,207 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5623529411764706 [2022-11-21 16:30:52,208 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 717 transitions. [2022-11-21 16:30:52,208 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 717 transitions. [2022-11-21 16:30:52,208 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:30:52,208 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 717 transitions. [2022-11-21 16:30:52,210 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 47.8) internal successors, (717), 15 states have internal predecessors, (717), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:30:52,213 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 85.0) internal successors, (1360), 16 states have internal predecessors, (1360), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:30:52,213 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 85.0) internal successors, (1360), 16 states have internal predecessors, (1360), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:30:52,214 INFO L175 Difference]: Start difference. First operand has 85 places, 73 transitions, 203 flow. Second operand 15 states and 717 transitions. [2022-11-21 16:30:52,214 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 99 places, 97 transitions, 397 flow [2022-11-21 16:30:52,216 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 93 places, 97 transitions, 379 flow, removed 0 selfloop flow, removed 6 redundant places. [2022-11-21 16:30:52,218 INFO L231 Difference]: Finished difference. Result has 99 places, 83 transitions, 306 flow [2022-11-21 16:30:52,218 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=85, PETRI_DIFFERENCE_MINUEND_FLOW=189, PETRI_DIFFERENCE_MINUEND_PLACES=79, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=73, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=56, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=306, PETRI_PLACES=99, PETRI_TRANSITIONS=83} [2022-11-21 16:30:52,219 INFO L288 CegarLoopForPetriNet]: 71 programPoint places, 28 predicate places. [2022-11-21 16:30:52,219 INFO L495 AbstractCegarLoop]: Abstraction has has 99 places, 83 transitions, 306 flow [2022-11-21 16:30:52,220 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 45.75) internal successors, (549), 12 states have internal predecessors, (549), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:30:52,220 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:30:52,220 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:30:52,220 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-21 16:30:52,221 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-21 16:30:52,221 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:30:52,221 INFO L85 PathProgramCache]: Analyzing trace with hash -230297313, now seen corresponding path program 1 times [2022-11-21 16:30:52,221 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:30:52,222 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1003357120] [2022-11-21 16:30:52,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:30:52,222 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:30:52,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:30:52,463 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:30:52,463 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:30:52,464 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1003357120] [2022-11-21 16:30:52,465 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1003357120] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:30:52,466 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:30:52,466 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-21 16:30:52,466 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [241447636] [2022-11-21 16:30:52,467 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:30:52,467 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-21 16:30:52,467 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:30:52,468 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-21 16:30:52,470 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2022-11-21 16:30:52,471 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 85 [2022-11-21 16:30:52,472 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 99 places, 83 transitions, 306 flow. Second operand has 9 states, 9 states have (on average 50.22222222222222) internal successors, (452), 9 states have internal predecessors, (452), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:30:52,472 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:30:52,472 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 85 [2022-11-21 16:30:52,472 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:30:52,759 INFO L130 PetriNetUnfolder]: 13/141 cut-off events. [2022-11-21 16:30:52,760 INFO L131 PetriNetUnfolder]: For 84/88 co-relation queries the response was YES. [2022-11-21 16:30:52,761 INFO L83 FinitePrefix]: Finished finitePrefix Result has 332 conditions, 141 events. 13/141 cut-off events. For 84/88 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 480 event pairs, 0 based on Foata normal form. 7/148 useless extension candidates. Maximal degree in co-relation 255. Up to 19 conditions per place. [2022-11-21 16:30:52,762 INFO L137 encePairwiseOnDemand]: 72/85 looper letters, 29 selfloop transitions, 11 changer transitions 6/90 dead transitions. [2022-11-21 16:30:52,762 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 111 places, 90 transitions, 420 flow [2022-11-21 16:30:52,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-21 16:30:52,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-11-21 16:30:52,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 666 transitions. [2022-11-21 16:30:52,765 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6027149321266968 [2022-11-21 16:30:52,766 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 666 transitions. [2022-11-21 16:30:52,766 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 666 transitions. [2022-11-21 16:30:52,767 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:30:52,767 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 666 transitions. [2022-11-21 16:30:52,769 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 51.23076923076923) internal successors, (666), 13 states have internal predecessors, (666), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:30:52,771 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 85.0) internal successors, (1190), 14 states have internal predecessors, (1190), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:30:52,772 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 85.0) internal successors, (1190), 14 states have internal predecessors, (1190), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:30:52,772 INFO L175 Difference]: Start difference. First operand has 99 places, 83 transitions, 306 flow. Second operand 13 states and 666 transitions. [2022-11-21 16:30:52,772 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 111 places, 90 transitions, 420 flow [2022-11-21 16:30:52,778 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 103 places, 90 transitions, 397 flow, removed 0 selfloop flow, removed 8 redundant places. [2022-11-21 16:30:52,780 INFO L231 Difference]: Finished difference. Result has 104 places, 79 transitions, 288 flow [2022-11-21 16:30:52,780 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=85, PETRI_DIFFERENCE_MINUEND_FLOW=279, PETRI_DIFFERENCE_MINUEND_PLACES=91, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=82, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=71, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=288, PETRI_PLACES=104, PETRI_TRANSITIONS=79} [2022-11-21 16:30:52,782 INFO L288 CegarLoopForPetriNet]: 71 programPoint places, 33 predicate places. [2022-11-21 16:30:52,782 INFO L495 AbstractCegarLoop]: Abstraction has has 104 places, 79 transitions, 288 flow [2022-11-21 16:30:52,782 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 50.22222222222222) internal successors, (452), 9 states have internal predecessors, (452), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:30:52,783 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:30:52,783 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:30:52,783 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-21 16:30:52,783 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-21 16:30:52,785 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:30:52,785 INFO L85 PathProgramCache]: Analyzing trace with hash 647961283, now seen corresponding path program 1 times [2022-11-21 16:30:52,786 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:30:52,786 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [507906355] [2022-11-21 16:30:52,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:30:52,786 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:30:52,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:30:53,115 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:30:53,116 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:30:53,116 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [507906355] [2022-11-21 16:30:53,116 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [507906355] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:30:53,117 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:30:53,117 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-21 16:30:53,121 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1850239823] [2022-11-21 16:30:53,121 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:30:53,122 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-21 16:30:53,122 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:30:53,123 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-21 16:30:53,124 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-11-21 16:30:53,125 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 46 out of 85 [2022-11-21 16:30:53,126 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 104 places, 79 transitions, 288 flow. Second operand has 12 states, 12 states have (on average 47.833333333333336) internal successors, (574), 12 states have internal predecessors, (574), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:30:53,126 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:30:53,126 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 46 of 85 [2022-11-21 16:30:53,127 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:30:53,564 INFO L130 PetriNetUnfolder]: 24/150 cut-off events. [2022-11-21 16:30:53,564 INFO L131 PetriNetUnfolder]: For 122/124 co-relation queries the response was YES. [2022-11-21 16:30:53,565 INFO L83 FinitePrefix]: Finished finitePrefix Result has 377 conditions, 150 events. 24/150 cut-off events. For 122/124 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 509 event pairs, 4 based on Foata normal form. 6/155 useless extension candidates. Maximal degree in co-relation 299. Up to 23 conditions per place. [2022-11-21 16:30:53,566 INFO L137 encePairwiseOnDemand]: 69/85 looper letters, 27 selfloop transitions, 16 changer transitions 10/91 dead transitions. [2022-11-21 16:30:53,566 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 116 places, 91 transitions, 440 flow [2022-11-21 16:30:53,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-21 16:30:53,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2022-11-21 16:30:53,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 789 transitions. [2022-11-21 16:30:53,569 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5801470588235295 [2022-11-21 16:30:53,569 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 789 transitions. [2022-11-21 16:30:53,569 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 789 transitions. [2022-11-21 16:30:53,570 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:30:53,570 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 789 transitions. [2022-11-21 16:30:53,572 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 49.3125) internal successors, (789), 16 states have internal predecessors, (789), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:30:53,575 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 85.0) internal successors, (1445), 17 states have internal predecessors, (1445), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:30:53,575 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 85.0) internal successors, (1445), 17 states have internal predecessors, (1445), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:30:53,575 INFO L175 Difference]: Start difference. First operand has 104 places, 79 transitions, 288 flow. Second operand 16 states and 789 transitions. [2022-11-21 16:30:53,575 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 116 places, 91 transitions, 440 flow [2022-11-21 16:30:53,578 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 104 places, 91 transitions, 386 flow, removed 2 selfloop flow, removed 12 redundant places. [2022-11-21 16:30:53,579 INFO L231 Difference]: Finished difference. Result has 105 places, 75 transitions, 265 flow [2022-11-21 16:30:53,580 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=85, PETRI_DIFFERENCE_MINUEND_FLOW=238, PETRI_DIFFERENCE_MINUEND_PLACES=89, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=78, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=62, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=265, PETRI_PLACES=105, PETRI_TRANSITIONS=75} [2022-11-21 16:30:53,580 INFO L288 CegarLoopForPetriNet]: 71 programPoint places, 34 predicate places. [2022-11-21 16:30:53,580 INFO L495 AbstractCegarLoop]: Abstraction has has 105 places, 75 transitions, 265 flow [2022-11-21 16:30:53,581 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 47.833333333333336) internal successors, (574), 12 states have internal predecessors, (574), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:30:53,581 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:30:53,581 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:30:53,581 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-21 16:30:53,582 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-21 16:30:53,582 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:30:53,582 INFO L85 PathProgramCache]: Analyzing trace with hash 1038474867, now seen corresponding path program 1 times [2022-11-21 16:30:53,582 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:30:53,583 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1854474247] [2022-11-21 16:30:53,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:30:53,583 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:30:53,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:30:53,655 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:30:53,656 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:30:53,656 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1854474247] [2022-11-21 16:30:53,656 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1854474247] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:30:53,656 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:30:53,656 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-21 16:30:53,656 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1197145645] [2022-11-21 16:30:53,657 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:30:53,657 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 16:30:53,657 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:30:53,657 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 16:30:53,658 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 16:30:53,658 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 73 out of 85 [2022-11-21 16:30:53,659 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 105 places, 75 transitions, 265 flow. Second operand has 3 states, 3 states have (on average 76.0) internal successors, (228), 3 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:30:53,659 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:30:53,659 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 73 of 85 [2022-11-21 16:30:53,659 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:30:53,686 INFO L130 PetriNetUnfolder]: 2/89 cut-off events. [2022-11-21 16:30:53,686 INFO L131 PetriNetUnfolder]: For 24/24 co-relation queries the response was YES. [2022-11-21 16:30:53,686 INFO L83 FinitePrefix]: Finished finitePrefix Result has 177 conditions, 89 events. 2/89 cut-off events. For 24/24 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 107 event pairs, 0 based on Foata normal form. 2/91 useless extension candidates. Maximal degree in co-relation 134. Up to 12 conditions per place. [2022-11-21 16:30:53,687 INFO L137 encePairwiseOnDemand]: 81/85 looper letters, 7 selfloop transitions, 4 changer transitions 0/75 dead transitions. [2022-11-21 16:30:53,687 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 104 places, 75 transitions, 287 flow [2022-11-21 16:30:53,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 16:30:53,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-21 16:30:53,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 232 transitions. [2022-11-21 16:30:53,688 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9098039215686274 [2022-11-21 16:30:53,688 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 232 transitions. [2022-11-21 16:30:53,688 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 232 transitions. [2022-11-21 16:30:53,689 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:30:53,689 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 232 transitions. [2022-11-21 16:30:53,690 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 77.33333333333333) internal successors, (232), 3 states have internal predecessors, (232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:30:53,690 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 85.0) internal successors, (340), 4 states have internal predecessors, (340), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:30:53,690 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 85.0) internal successors, (340), 4 states have internal predecessors, (340), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:30:53,691 INFO L175 Difference]: Start difference. First operand has 105 places, 75 transitions, 265 flow. Second operand 3 states and 232 transitions. [2022-11-21 16:30:53,691 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 104 places, 75 transitions, 287 flow [2022-11-21 16:30:53,692 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 90 places, 75 transitions, 252 flow, removed 2 selfloop flow, removed 14 redundant places. [2022-11-21 16:30:53,694 INFO L231 Difference]: Finished difference. Result has 90 places, 75 transitions, 238 flow [2022-11-21 16:30:53,694 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=85, PETRI_DIFFERENCE_MINUEND_FLOW=230, PETRI_DIFFERENCE_MINUEND_PLACES=88, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=75, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=71, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=238, PETRI_PLACES=90, PETRI_TRANSITIONS=75} [2022-11-21 16:30:53,695 INFO L288 CegarLoopForPetriNet]: 71 programPoint places, 19 predicate places. [2022-11-21 16:30:53,695 INFO L495 AbstractCegarLoop]: Abstraction has has 90 places, 75 transitions, 238 flow [2022-11-21 16:30:53,695 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 76.0) internal successors, (228), 3 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:30:53,695 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:30:53,695 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:30:53,695 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-21 16:30:53,696 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-21 16:30:53,696 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:30:53,696 INFO L85 PathProgramCache]: Analyzing trace with hash -825762048, now seen corresponding path program 1 times [2022-11-21 16:30:53,696 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:30:53,697 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [521408193] [2022-11-21 16:30:53,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:30:53,697 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:30:53,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:30:54,166 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:30:54,166 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:30:54,167 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [521408193] [2022-11-21 16:30:54,167 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [521408193] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:30:54,167 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:30:54,167 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-11-21 16:30:54,167 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1148310854] [2022-11-21 16:30:54,168 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:30:54,169 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-11-21 16:30:54,169 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:30:54,170 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-11-21 16:30:54,170 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=172, Unknown=0, NotChecked=0, Total=210 [2022-11-21 16:30:54,172 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 37 out of 85 [2022-11-21 16:30:54,173 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 90 places, 75 transitions, 238 flow. Second operand has 15 states, 15 states have (on average 38.86666666666667) internal successors, (583), 15 states have internal predecessors, (583), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:30:54,173 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:30:54,173 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 37 of 85 [2022-11-21 16:30:54,173 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:30:54,958 INFO L130 PetriNetUnfolder]: 21/120 cut-off events. [2022-11-21 16:30:54,958 INFO L131 PetriNetUnfolder]: For 46/46 co-relation queries the response was YES. [2022-11-21 16:30:54,958 INFO L83 FinitePrefix]: Finished finitePrefix Result has 297 conditions, 120 events. 21/120 cut-off events. For 46/46 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 179 event pairs, 5 based on Foata normal form. 1/120 useless extension candidates. Maximal degree in co-relation 226. Up to 27 conditions per place. [2022-11-21 16:30:54,959 INFO L137 encePairwiseOnDemand]: 66/85 looper letters, 32 selfloop transitions, 30 changer transitions 0/92 dead transitions. [2022-11-21 16:30:54,960 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 112 places, 92 transitions, 429 flow [2022-11-21 16:30:54,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-11-21 16:30:54,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2022-11-21 16:30:54,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 988 transitions. [2022-11-21 16:30:54,964 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.46494117647058825 [2022-11-21 16:30:54,964 INFO L72 ComplementDD]: Start complementDD. Operand 25 states and 988 transitions. [2022-11-21 16:30:54,964 INFO L73 IsDeterministic]: Start isDeterministic. Operand 25 states and 988 transitions. [2022-11-21 16:30:54,965 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:30:54,965 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 25 states and 988 transitions. [2022-11-21 16:30:54,968 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 26 states, 25 states have (on average 39.52) internal successors, (988), 25 states have internal predecessors, (988), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:30:54,972 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 26 states, 26 states have (on average 85.0) internal successors, (2210), 26 states have internal predecessors, (2210), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:30:54,972 INFO L81 ComplementDD]: Finished complementDD. Result has 26 states, 26 states have (on average 85.0) internal successors, (2210), 26 states have internal predecessors, (2210), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:30:54,973 INFO L175 Difference]: Start difference. First operand has 90 places, 75 transitions, 238 flow. Second operand 25 states and 988 transitions. [2022-11-21 16:30:54,973 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 112 places, 92 transitions, 429 flow [2022-11-21 16:30:54,975 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 110 places, 92 transitions, 422 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-21 16:30:54,978 INFO L231 Difference]: Finished difference. Result has 110 places, 82 transitions, 326 flow [2022-11-21 16:30:54,978 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=85, PETRI_DIFFERENCE_MINUEND_FLOW=226, PETRI_DIFFERENCE_MINUEND_PLACES=86, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=74, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=52, PETRI_DIFFERENCE_SUBTRAHEND_STATES=25, PETRI_FLOW=326, PETRI_PLACES=110, PETRI_TRANSITIONS=82} [2022-11-21 16:30:54,982 INFO L288 CegarLoopForPetriNet]: 71 programPoint places, 39 predicate places. [2022-11-21 16:30:54,982 INFO L495 AbstractCegarLoop]: Abstraction has has 110 places, 82 transitions, 326 flow [2022-11-21 16:30:54,983 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 38.86666666666667) internal successors, (583), 15 states have internal predecessors, (583), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:30:54,983 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:30:54,983 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:30:54,984 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-21 16:30:54,984 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-21 16:30:54,984 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:30:54,984 INFO L85 PathProgramCache]: Analyzing trace with hash -1377962579, now seen corresponding path program 1 times [2022-11-21 16:30:54,985 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:30:54,985 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [335679103] [2022-11-21 16:30:54,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:30:54,985 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:30:55,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:30:55,426 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:30:55,426 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:30:55,426 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [335679103] [2022-11-21 16:30:55,427 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [335679103] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:30:55,427 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:30:55,427 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-11-21 16:30:55,427 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [557294347] [2022-11-21 16:30:55,427 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:30:55,428 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-11-21 16:30:55,428 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:30:55,428 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-11-21 16:30:55,428 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=176, Unknown=0, NotChecked=0, Total=210 [2022-11-21 16:30:55,430 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 37 out of 85 [2022-11-21 16:30:55,430 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 110 places, 82 transitions, 326 flow. Second operand has 15 states, 15 states have (on average 38.86666666666667) internal successors, (583), 15 states have internal predecessors, (583), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:30:55,431 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:30:55,431 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 37 of 85 [2022-11-21 16:30:55,431 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:30:56,033 INFO L130 PetriNetUnfolder]: 24/142 cut-off events. [2022-11-21 16:30:56,034 INFO L131 PetriNetUnfolder]: For 87/93 co-relation queries the response was YES. [2022-11-21 16:30:56,035 INFO L83 FinitePrefix]: Finished finitePrefix Result has 385 conditions, 142 events. 24/142 cut-off events. For 87/93 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 309 event pairs, 3 based on Foata normal form. 8/148 useless extension candidates. Maximal degree in co-relation 308. Up to 36 conditions per place. [2022-11-21 16:30:56,036 INFO L137 encePairwiseOnDemand]: 65/85 looper letters, 44 selfloop transitions, 28 changer transitions 0/102 dead transitions. [2022-11-21 16:30:56,036 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 130 places, 102 transitions, 536 flow [2022-11-21 16:30:56,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-11-21 16:30:56,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2022-11-21 16:30:56,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 846 transitions. [2022-11-21 16:30:56,039 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.47394957983193275 [2022-11-21 16:30:56,039 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 846 transitions. [2022-11-21 16:30:56,040 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 846 transitions. [2022-11-21 16:30:56,041 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:30:56,041 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 846 transitions. [2022-11-21 16:30:56,044 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 22 states, 21 states have (on average 40.285714285714285) internal successors, (846), 21 states have internal predecessors, (846), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:30:56,047 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 22 states, 22 states have (on average 85.0) internal successors, (1870), 22 states have internal predecessors, (1870), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:30:56,048 INFO L81 ComplementDD]: Finished complementDD. Result has 22 states, 22 states have (on average 85.0) internal successors, (1870), 22 states have internal predecessors, (1870), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:30:56,048 INFO L175 Difference]: Start difference. First operand has 110 places, 82 transitions, 326 flow. Second operand 21 states and 846 transitions. [2022-11-21 16:30:56,048 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 130 places, 102 transitions, 536 flow [2022-11-21 16:30:56,050 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 111 places, 102 transitions, 457 flow, removed 2 selfloop flow, removed 19 redundant places. [2022-11-21 16:30:56,052 INFO L231 Difference]: Finished difference. Result has 118 places, 89 transitions, 368 flow [2022-11-21 16:30:56,052 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=85, PETRI_DIFFERENCE_MINUEND_FLOW=255, PETRI_DIFFERENCE_MINUEND_PLACES=91, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=82, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=21, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=55, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=368, PETRI_PLACES=118, PETRI_TRANSITIONS=89} [2022-11-21 16:30:56,053 INFO L288 CegarLoopForPetriNet]: 71 programPoint places, 47 predicate places. [2022-11-21 16:30:56,053 INFO L495 AbstractCegarLoop]: Abstraction has has 118 places, 89 transitions, 368 flow [2022-11-21 16:30:56,054 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 38.86666666666667) internal successors, (583), 15 states have internal predecessors, (583), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:30:56,054 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:30:56,054 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:30:56,054 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-21 16:30:56,055 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-21 16:30:56,056 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:30:56,056 INFO L85 PathProgramCache]: Analyzing trace with hash -374649073, now seen corresponding path program 2 times [2022-11-21 16:30:56,056 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:30:56,056 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2051759408] [2022-11-21 16:30:56,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:30:56,057 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:30:56,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:30:56,512 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:30:56,512 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:30:56,512 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2051759408] [2022-11-21 16:30:56,513 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2051759408] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:30:56,513 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:30:56,513 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-11-21 16:30:56,513 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2111564063] [2022-11-21 16:30:56,513 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:30:56,514 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-11-21 16:30:56,514 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:30:56,514 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-11-21 16:30:56,515 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=178, Unknown=0, NotChecked=0, Total=210 [2022-11-21 16:30:56,516 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 37 out of 85 [2022-11-21 16:30:56,516 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 118 places, 89 transitions, 368 flow. Second operand has 15 states, 15 states have (on average 38.86666666666667) internal successors, (583), 15 states have internal predecessors, (583), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:30:56,517 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:30:56,517 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 37 of 85 [2022-11-21 16:30:56,517 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:30:57,349 INFO L130 PetriNetUnfolder]: 33/184 cut-off events. [2022-11-21 16:30:57,349 INFO L131 PetriNetUnfolder]: For 155/161 co-relation queries the response was YES. [2022-11-21 16:30:57,350 INFO L83 FinitePrefix]: Finished finitePrefix Result has 542 conditions, 184 events. 33/184 cut-off events. For 155/161 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 551 event pairs, 4 based on Foata normal form. 8/189 useless extension candidates. Maximal degree in co-relation 488. Up to 38 conditions per place. [2022-11-21 16:30:57,351 INFO L137 encePairwiseOnDemand]: 65/85 looper letters, 48 selfloop transitions, 48 changer transitions 0/126 dead transitions. [2022-11-21 16:30:57,351 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 147 places, 126 transitions, 722 flow [2022-11-21 16:30:57,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-11-21 16:30:57,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2022-11-21 16:30:57,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 1196 transitions. [2022-11-21 16:30:57,355 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.46901960784313723 [2022-11-21 16:30:57,355 INFO L72 ComplementDD]: Start complementDD. Operand 30 states and 1196 transitions. [2022-11-21 16:30:57,355 INFO L73 IsDeterministic]: Start isDeterministic. Operand 30 states and 1196 transitions. [2022-11-21 16:30:57,356 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:30:57,356 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 30 states and 1196 transitions. [2022-11-21 16:30:57,359 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 31 states, 30 states have (on average 39.86666666666667) internal successors, (1196), 30 states have internal predecessors, (1196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:30:57,363 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 31 states, 31 states have (on average 85.0) internal successors, (2635), 31 states have internal predecessors, (2635), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:30:57,364 INFO L81 ComplementDD]: Finished complementDD. Result has 31 states, 31 states have (on average 85.0) internal successors, (2635), 31 states have internal predecessors, (2635), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:30:57,364 INFO L175 Difference]: Start difference. First operand has 118 places, 89 transitions, 368 flow. Second operand 30 states and 1196 transitions. [2022-11-21 16:30:57,364 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 147 places, 126 transitions, 722 flow [2022-11-21 16:30:57,366 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 136 places, 126 transitions, 684 flow, removed 2 selfloop flow, removed 11 redundant places. [2022-11-21 16:30:57,368 INFO L231 Difference]: Finished difference. Result has 142 places, 109 transitions, 586 flow [2022-11-21 16:30:57,368 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=85, PETRI_DIFFERENCE_MINUEND_FLOW=334, PETRI_DIFFERENCE_MINUEND_PLACES=107, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=89, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=31, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=53, PETRI_DIFFERENCE_SUBTRAHEND_STATES=30, PETRI_FLOW=586, PETRI_PLACES=142, PETRI_TRANSITIONS=109} [2022-11-21 16:30:57,369 INFO L288 CegarLoopForPetriNet]: 71 programPoint places, 71 predicate places. [2022-11-21 16:30:57,369 INFO L495 AbstractCegarLoop]: Abstraction has has 142 places, 109 transitions, 586 flow [2022-11-21 16:30:57,369 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 38.86666666666667) internal successors, (583), 15 states have internal predecessors, (583), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:30:57,370 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:30:57,370 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:30:57,370 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-21 16:30:57,370 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-21 16:30:57,370 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:30:57,371 INFO L85 PathProgramCache]: Analyzing trace with hash 1280106063, now seen corresponding path program 3 times [2022-11-21 16:30:57,371 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:30:57,371 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1258810843] [2022-11-21 16:30:57,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:30:57,371 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:30:57,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:30:57,809 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:30:57,809 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:30:57,809 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1258810843] [2022-11-21 16:30:57,809 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1258810843] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:30:57,810 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:30:57,810 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-11-21 16:30:57,810 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1742735687] [2022-11-21 16:30:57,810 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:30:57,810 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-11-21 16:30:57,810 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:30:57,811 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-11-21 16:30:57,811 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2022-11-21 16:30:57,812 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 37 out of 85 [2022-11-21 16:30:57,813 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 142 places, 109 transitions, 586 flow. Second operand has 15 states, 15 states have (on average 38.86666666666667) internal successors, (583), 15 states have internal predecessors, (583), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:30:57,813 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:30:57,813 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 37 of 85 [2022-11-21 16:30:57,813 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:30:58,494 INFO L130 PetriNetUnfolder]: 37/203 cut-off events. [2022-11-21 16:30:58,494 INFO L131 PetriNetUnfolder]: For 279/285 co-relation queries the response was YES. [2022-11-21 16:30:58,495 INFO L83 FinitePrefix]: Finished finitePrefix Result has 680 conditions, 203 events. 37/203 cut-off events. For 279/285 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 671 event pairs, 3 based on Foata normal form. 8/207 useless extension candidates. Maximal degree in co-relation 616. Up to 36 conditions per place. [2022-11-21 16:30:58,496 INFO L137 encePairwiseOnDemand]: 65/85 looper letters, 48 selfloop transitions, 51 changer transitions 0/129 dead transitions. [2022-11-21 16:30:58,496 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 167 places, 129 transitions, 856 flow [2022-11-21 16:30:58,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-11-21 16:30:58,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2022-11-21 16:30:58,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 1043 transitions. [2022-11-21 16:30:58,499 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.47194570135746605 [2022-11-21 16:30:58,499 INFO L72 ComplementDD]: Start complementDD. Operand 26 states and 1043 transitions. [2022-11-21 16:30:58,499 INFO L73 IsDeterministic]: Start isDeterministic. Operand 26 states and 1043 transitions. [2022-11-21 16:30:58,500 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:30:58,500 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 26 states and 1043 transitions. [2022-11-21 16:30:58,502 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 27 states, 26 states have (on average 40.11538461538461) internal successors, (1043), 26 states have internal predecessors, (1043), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:30:58,505 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 27 states, 27 states have (on average 85.0) internal successors, (2295), 27 states have internal predecessors, (2295), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:30:58,506 INFO L81 ComplementDD]: Finished complementDD. Result has 27 states, 27 states have (on average 85.0) internal successors, (2295), 27 states have internal predecessors, (2295), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:30:58,506 INFO L175 Difference]: Start difference. First operand has 142 places, 109 transitions, 586 flow. Second operand 26 states and 1043 transitions. [2022-11-21 16:30:58,506 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 167 places, 129 transitions, 856 flow [2022-11-21 16:30:58,510 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 155 places, 129 transitions, 781 flow, removed 20 selfloop flow, removed 12 redundant places. [2022-11-21 16:30:58,512 INFO L231 Difference]: Finished difference. Result has 160 places, 113 transitions, 678 flow [2022-11-21 16:30:58,512 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=85, PETRI_DIFFERENCE_MINUEND_FLOW=518, PETRI_DIFFERENCE_MINUEND_PLACES=130, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=109, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=47, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=58, PETRI_DIFFERENCE_SUBTRAHEND_STATES=26, PETRI_FLOW=678, PETRI_PLACES=160, PETRI_TRANSITIONS=113} [2022-11-21 16:30:58,513 INFO L288 CegarLoopForPetriNet]: 71 programPoint places, 89 predicate places. [2022-11-21 16:30:58,513 INFO L495 AbstractCegarLoop]: Abstraction has has 160 places, 113 transitions, 678 flow [2022-11-21 16:30:58,514 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 38.86666666666667) internal successors, (583), 15 states have internal predecessors, (583), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:30:58,514 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:30:58,514 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:30:58,514 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-21 16:30:58,515 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-21 16:30:58,515 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:30:58,515 INFO L85 PathProgramCache]: Analyzing trace with hash -1835141265, now seen corresponding path program 4 times [2022-11-21 16:30:58,515 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:30:58,516 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1911624040] [2022-11-21 16:30:58,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:30:58,516 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:30:58,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:30:58,890 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:30:58,890 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:30:58,890 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1911624040] [2022-11-21 16:30:58,890 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1911624040] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:30:58,890 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:30:58,891 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-11-21 16:30:58,891 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [176822565] [2022-11-21 16:30:58,891 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:30:58,891 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-11-21 16:30:58,891 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:30:58,892 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-11-21 16:30:58,892 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=179, Unknown=0, NotChecked=0, Total=210 [2022-11-21 16:30:58,893 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 37 out of 85 [2022-11-21 16:30:58,894 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 160 places, 113 transitions, 678 flow. Second operand has 15 states, 15 states have (on average 38.86666666666667) internal successors, (583), 15 states have internal predecessors, (583), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:30:58,894 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:30:58,894 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 37 of 85 [2022-11-21 16:30:58,894 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:30:59,768 INFO L130 PetriNetUnfolder]: 45/242 cut-off events. [2022-11-21 16:30:59,769 INFO L131 PetriNetUnfolder]: For 518/524 co-relation queries the response was YES. [2022-11-21 16:30:59,770 INFO L83 FinitePrefix]: Finished finitePrefix Result has 860 conditions, 242 events. 45/242 cut-off events. For 518/524 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 950 event pairs, 12 based on Foata normal form. 2/239 useless extension candidates. Maximal degree in co-relation 764. Up to 68 conditions per place. [2022-11-21 16:30:59,771 INFO L137 encePairwiseOnDemand]: 66/85 looper letters, 67 selfloop transitions, 53 changer transitions 0/150 dead transitions. [2022-11-21 16:30:59,771 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 188 places, 150 transitions, 1108 flow [2022-11-21 16:30:59,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-11-21 16:30:59,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2022-11-21 16:30:59,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 1161 transitions. [2022-11-21 16:30:59,774 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.47099391480730224 [2022-11-21 16:30:59,775 INFO L72 ComplementDD]: Start complementDD. Operand 29 states and 1161 transitions. [2022-11-21 16:30:59,775 INFO L73 IsDeterministic]: Start isDeterministic. Operand 29 states and 1161 transitions. [2022-11-21 16:30:59,777 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:30:59,777 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 29 states and 1161 transitions. [2022-11-21 16:30:59,779 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 30 states, 29 states have (on average 40.03448275862069) internal successors, (1161), 29 states have internal predecessors, (1161), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:30:59,783 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 30 states, 30 states have (on average 85.0) internal successors, (2550), 30 states have internal predecessors, (2550), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:30:59,784 INFO L81 ComplementDD]: Finished complementDD. Result has 30 states, 30 states have (on average 85.0) internal successors, (2550), 30 states have internal predecessors, (2550), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:30:59,784 INFO L175 Difference]: Start difference. First operand has 160 places, 113 transitions, 678 flow. Second operand 29 states and 1161 transitions. [2022-11-21 16:30:59,784 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 188 places, 150 transitions, 1108 flow [2022-11-21 16:30:59,793 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 167 places, 150 transitions, 1008 flow, removed 8 selfloop flow, removed 21 redundant places. [2022-11-21 16:30:59,798 INFO L231 Difference]: Finished difference. Result has 174 places, 133 transitions, 881 flow [2022-11-21 16:30:59,799 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=85, PETRI_DIFFERENCE_MINUEND_FLOW=588, PETRI_DIFFERENCE_MINUEND_PLACES=139, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=113, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=34, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=74, PETRI_DIFFERENCE_SUBTRAHEND_STATES=29, PETRI_FLOW=881, PETRI_PLACES=174, PETRI_TRANSITIONS=133} [2022-11-21 16:30:59,800 INFO L288 CegarLoopForPetriNet]: 71 programPoint places, 103 predicate places. [2022-11-21 16:30:59,802 INFO L495 AbstractCegarLoop]: Abstraction has has 174 places, 133 transitions, 881 flow [2022-11-21 16:30:59,803 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 38.86666666666667) internal successors, (583), 15 states have internal predecessors, (583), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:30:59,803 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:30:59,803 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:30:59,803 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-21 16:30:59,804 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-21 16:30:59,804 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:30:59,804 INFO L85 PathProgramCache]: Analyzing trace with hash 1735593881, now seen corresponding path program 5 times [2022-11-21 16:30:59,808 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:30:59,808 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2063505891] [2022-11-21 16:30:59,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:30:59,808 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:30:59,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:31:00,196 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:31:00,197 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:31:00,197 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2063505891] [2022-11-21 16:31:00,197 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2063505891] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:31:00,197 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:31:00,197 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-11-21 16:31:00,197 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [437923269] [2022-11-21 16:31:00,197 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:31:00,198 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-11-21 16:31:00,198 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:31:00,198 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-11-21 16:31:00,198 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=179, Unknown=0, NotChecked=0, Total=210 [2022-11-21 16:31:00,199 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 37 out of 85 [2022-11-21 16:31:00,200 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 174 places, 133 transitions, 881 flow. Second operand has 15 states, 15 states have (on average 38.86666666666667) internal successors, (583), 15 states have internal predecessors, (583), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:31:00,200 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:31:00,200 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 37 of 85 [2022-11-21 16:31:00,200 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:31:01,156 INFO L130 PetriNetUnfolder]: 49/261 cut-off events. [2022-11-21 16:31:01,157 INFO L131 PetriNetUnfolder]: For 630/636 co-relation queries the response was YES. [2022-11-21 16:31:01,158 INFO L83 FinitePrefix]: Finished finitePrefix Result has 984 conditions, 261 events. 49/261 cut-off events. For 630/636 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 1089 event pairs, 9 based on Foata normal form. 8/263 useless extension candidates. Maximal degree in co-relation 905. Up to 66 conditions per place. [2022-11-21 16:31:01,159 INFO L137 encePairwiseOnDemand]: 65/85 looper letters, 65 selfloop transitions, 62 changer transitions 0/157 dead transitions. [2022-11-21 16:31:01,160 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 204 places, 157 transitions, 1233 flow [2022-11-21 16:31:01,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-11-21 16:31:01,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2022-11-21 16:31:01,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 1240 transitions. [2022-11-21 16:31:01,163 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.47058823529411764 [2022-11-21 16:31:01,163 INFO L72 ComplementDD]: Start complementDD. Operand 31 states and 1240 transitions. [2022-11-21 16:31:01,163 INFO L73 IsDeterministic]: Start isDeterministic. Operand 31 states and 1240 transitions. [2022-11-21 16:31:01,164 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:31:01,164 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 31 states and 1240 transitions. [2022-11-21 16:31:01,166 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 32 states, 31 states have (on average 40.0) internal successors, (1240), 31 states have internal predecessors, (1240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:31:01,170 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 32 states, 32 states have (on average 85.0) internal successors, (2720), 32 states have internal predecessors, (2720), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:31:01,171 INFO L81 ComplementDD]: Finished complementDD. Result has 32 states, 32 states have (on average 85.0) internal successors, (2720), 32 states have internal predecessors, (2720), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:31:01,172 INFO L175 Difference]: Start difference. First operand has 174 places, 133 transitions, 881 flow. Second operand 31 states and 1240 transitions. [2022-11-21 16:31:01,172 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 204 places, 157 transitions, 1233 flow [2022-11-21 16:31:01,178 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 191 places, 157 transitions, 1118 flow, removed 20 selfloop flow, removed 13 redundant places. [2022-11-21 16:31:01,181 INFO L231 Difference]: Finished difference. Result has 196 places, 137 transitions, 965 flow [2022-11-21 16:31:01,181 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=85, PETRI_DIFFERENCE_MINUEND_FLOW=767, PETRI_DIFFERENCE_MINUEND_PLACES=161, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=133, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=58, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=71, PETRI_DIFFERENCE_SUBTRAHEND_STATES=31, PETRI_FLOW=965, PETRI_PLACES=196, PETRI_TRANSITIONS=137} [2022-11-21 16:31:01,182 INFO L288 CegarLoopForPetriNet]: 71 programPoint places, 125 predicate places. [2022-11-21 16:31:01,182 INFO L495 AbstractCegarLoop]: Abstraction has has 196 places, 137 transitions, 965 flow [2022-11-21 16:31:01,183 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 38.86666666666667) internal successors, (583), 15 states have internal predecessors, (583), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:31:01,183 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:31:01,183 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:31:01,183 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-21 16:31:01,183 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-21 16:31:01,184 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:31:01,184 INFO L85 PathProgramCache]: Analyzing trace with hash -42175315, now seen corresponding path program 6 times [2022-11-21 16:31:01,184 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:31:01,184 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1732456148] [2022-11-21 16:31:01,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:31:01,185 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:31:01,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:31:01,583 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:31:01,583 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:31:01,583 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1732456148] [2022-11-21 16:31:01,583 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1732456148] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:31:01,584 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:31:01,584 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-11-21 16:31:01,584 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1469624322] [2022-11-21 16:31:01,584 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:31:01,584 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-11-21 16:31:01,585 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:31:01,585 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-11-21 16:31:01,585 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=179, Unknown=0, NotChecked=0, Total=210 [2022-11-21 16:31:01,587 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 37 out of 85 [2022-11-21 16:31:01,588 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 196 places, 137 transitions, 965 flow. Second operand has 15 states, 15 states have (on average 38.86666666666667) internal successors, (583), 15 states have internal predecessors, (583), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:31:01,588 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:31:01,588 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 37 of 85 [2022-11-21 16:31:01,588 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:31:02,359 INFO L130 PetriNetUnfolder]: 52/280 cut-off events. [2022-11-21 16:31:02,359 INFO L131 PetriNetUnfolder]: For 872/878 co-relation queries the response was YES. [2022-11-21 16:31:02,361 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1096 conditions, 280 events. 52/280 cut-off events. For 872/878 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 1222 event pairs, 18 based on Foata normal form. 2/276 useless extension candidates. Maximal degree in co-relation 1012. Up to 76 conditions per place. [2022-11-21 16:31:02,362 INFO L137 encePairwiseOnDemand]: 66/85 looper letters, 60 selfloop transitions, 68 changer transitions 0/158 dead transitions. [2022-11-21 16:31:02,363 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 220 places, 158 transitions, 1348 flow [2022-11-21 16:31:02,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-11-21 16:31:02,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2022-11-21 16:31:02,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 1001 transitions. [2022-11-21 16:31:02,366 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.47105882352941175 [2022-11-21 16:31:02,366 INFO L72 ComplementDD]: Start complementDD. Operand 25 states and 1001 transitions. [2022-11-21 16:31:02,366 INFO L73 IsDeterministic]: Start isDeterministic. Operand 25 states and 1001 transitions. [2022-11-21 16:31:02,367 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:31:02,367 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 25 states and 1001 transitions. [2022-11-21 16:31:02,369 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 26 states, 25 states have (on average 40.04) internal successors, (1001), 25 states have internal predecessors, (1001), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:31:02,372 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 26 states, 26 states have (on average 85.0) internal successors, (2210), 26 states have internal predecessors, (2210), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:31:02,373 INFO L81 ComplementDD]: Finished complementDD. Result has 26 states, 26 states have (on average 85.0) internal successors, (2210), 26 states have internal predecessors, (2210), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:31:02,373 INFO L175 Difference]: Start difference. First operand has 196 places, 137 transitions, 965 flow. Second operand 25 states and 1001 transitions. [2022-11-21 16:31:02,373 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 220 places, 158 transitions, 1348 flow [2022-11-21 16:31:02,381 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 194 places, 158 transitions, 1222 flow, removed 13 selfloop flow, removed 26 redundant places. [2022-11-21 16:31:02,384 INFO L231 Difference]: Finished difference. Result has 199 places, 148 transitions, 1136 flow [2022-11-21 16:31:02,385 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=85, PETRI_DIFFERENCE_MINUEND_FLOW=846, PETRI_DIFFERENCE_MINUEND_PLACES=170, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=137, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=58, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=75, PETRI_DIFFERENCE_SUBTRAHEND_STATES=25, PETRI_FLOW=1136, PETRI_PLACES=199, PETRI_TRANSITIONS=148} [2022-11-21 16:31:02,386 INFO L288 CegarLoopForPetriNet]: 71 programPoint places, 128 predicate places. [2022-11-21 16:31:02,386 INFO L495 AbstractCegarLoop]: Abstraction has has 199 places, 148 transitions, 1136 flow [2022-11-21 16:31:02,386 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 38.86666666666667) internal successors, (583), 15 states have internal predecessors, (583), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:31:02,386 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:31:02,387 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:31:02,387 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-21 16:31:02,387 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-21 16:31:02,387 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:31:02,388 INFO L85 PathProgramCache]: Analyzing trace with hash -1617551597, now seen corresponding path program 7 times [2022-11-21 16:31:02,388 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:31:02,388 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1203756678] [2022-11-21 16:31:02,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:31:02,388 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:31:02,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:31:02,744 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:31:02,744 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:31:02,744 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1203756678] [2022-11-21 16:31:02,744 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1203756678] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:31:02,745 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:31:02,745 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-11-21 16:31:02,745 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1207052098] [2022-11-21 16:31:02,745 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:31:02,746 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-11-21 16:31:02,746 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:31:02,747 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-11-21 16:31:02,747 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=179, Unknown=0, NotChecked=0, Total=210 [2022-11-21 16:31:02,748 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 37 out of 85 [2022-11-21 16:31:02,749 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 199 places, 148 transitions, 1136 flow. Second operand has 15 states, 15 states have (on average 38.86666666666667) internal successors, (583), 15 states have internal predecessors, (583), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:31:02,749 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:31:02,749 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 37 of 85 [2022-11-21 16:31:02,749 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:31:03,866 INFO L130 PetriNetUnfolder]: 58/305 cut-off events. [2022-11-21 16:31:03,866 INFO L131 PetriNetUnfolder]: For 998/1004 co-relation queries the response was YES. [2022-11-21 16:31:03,868 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1256 conditions, 305 events. 58/305 cut-off events. For 998/1004 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 1415 event pairs, 3 based on Foata normal form. 8/305 useless extension candidates. Maximal degree in co-relation 1162. Up to 63 conditions per place. [2022-11-21 16:31:03,870 INFO L137 encePairwiseOnDemand]: 65/85 looper letters, 48 selfloop transitions, 95 changer transitions 0/173 dead transitions. [2022-11-21 16:31:03,870 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 236 places, 173 transitions, 1578 flow [2022-11-21 16:31:03,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-11-21 16:31:03,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2022-11-21 16:31:03,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 1500 transitions. [2022-11-21 16:31:03,874 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.46439628482972134 [2022-11-21 16:31:03,874 INFO L72 ComplementDD]: Start complementDD. Operand 38 states and 1500 transitions. [2022-11-21 16:31:03,874 INFO L73 IsDeterministic]: Start isDeterministic. Operand 38 states and 1500 transitions. [2022-11-21 16:31:03,875 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:31:03,875 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 38 states and 1500 transitions. [2022-11-21 16:31:03,878 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 39 states, 38 states have (on average 39.473684210526315) internal successors, (1500), 38 states have internal predecessors, (1500), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:31:03,882 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 39 states, 39 states have (on average 85.0) internal successors, (3315), 39 states have internal predecessors, (3315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:31:03,883 INFO L81 ComplementDD]: Finished complementDD. Result has 39 states, 39 states have (on average 85.0) internal successors, (3315), 39 states have internal predecessors, (3315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:31:03,884 INFO L175 Difference]: Start difference. First operand has 199 places, 148 transitions, 1136 flow. Second operand 38 states and 1500 transitions. [2022-11-21 16:31:03,884 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 236 places, 173 transitions, 1578 flow [2022-11-21 16:31:03,895 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 219 places, 173 transitions, 1351 flow, removed 47 selfloop flow, removed 17 redundant places. [2022-11-21 16:31:03,898 INFO L231 Difference]: Finished difference. Result has 226 places, 158 transitions, 1289 flow [2022-11-21 16:31:03,899 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=85, PETRI_DIFFERENCE_MINUEND_FLOW=952, PETRI_DIFFERENCE_MINUEND_PLACES=182, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=148, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=85, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=57, PETRI_DIFFERENCE_SUBTRAHEND_STATES=38, PETRI_FLOW=1289, PETRI_PLACES=226, PETRI_TRANSITIONS=158} [2022-11-21 16:31:03,899 INFO L288 CegarLoopForPetriNet]: 71 programPoint places, 155 predicate places. [2022-11-21 16:31:03,899 INFO L495 AbstractCegarLoop]: Abstraction has has 226 places, 158 transitions, 1289 flow [2022-11-21 16:31:03,900 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 38.86666666666667) internal successors, (583), 15 states have internal predecessors, (583), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:31:03,900 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:31:03,900 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:31:03,900 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-21 16:31:03,901 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-21 16:31:03,901 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:31:03,901 INFO L85 PathProgramCache]: Analyzing trace with hash -2083743537, now seen corresponding path program 8 times [2022-11-21 16:31:03,901 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:31:03,902 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [535839080] [2022-11-21 16:31:03,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:31:03,902 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:31:03,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:31:04,244 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:31:04,244 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:31:04,244 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [535839080] [2022-11-21 16:31:04,244 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [535839080] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:31:04,244 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:31:04,245 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-11-21 16:31:04,245 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [337558720] [2022-11-21 16:31:04,245 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:31:04,245 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-11-21 16:31:04,245 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:31:04,246 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-11-21 16:31:04,246 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=178, Unknown=0, NotChecked=0, Total=210 [2022-11-21 16:31:04,247 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 37 out of 85 [2022-11-21 16:31:04,247 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 226 places, 158 transitions, 1289 flow. Second operand has 15 states, 15 states have (on average 38.86666666666667) internal successors, (583), 15 states have internal predecessors, (583), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:31:04,247 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:31:04,247 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 37 of 85 [2022-11-21 16:31:04,248 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:31:05,078 INFO L130 PetriNetUnfolder]: 57/302 cut-off events. [2022-11-21 16:31:05,079 INFO L131 PetriNetUnfolder]: For 1137/1143 co-relation queries the response was YES. [2022-11-21 16:31:05,080 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1281 conditions, 302 events. 57/302 cut-off events. For 1137/1143 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 1393 event pairs, 0 based on Foata normal form. 8/303 useless extension candidates. Maximal degree in co-relation 1200. Up to 72 conditions per place. [2022-11-21 16:31:05,082 INFO L137 encePairwiseOnDemand]: 66/85 looper letters, 36 selfloop transitions, 100 changer transitions 0/166 dead transitions. [2022-11-21 16:31:05,082 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 254 places, 166 transitions, 1570 flow [2022-11-21 16:31:05,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-11-21 16:31:05,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2022-11-21 16:31:05,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 1217 transitions. [2022-11-21 16:31:05,085 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4618595825426945 [2022-11-21 16:31:05,085 INFO L72 ComplementDD]: Start complementDD. Operand 31 states and 1217 transitions. [2022-11-21 16:31:05,086 INFO L73 IsDeterministic]: Start isDeterministic. Operand 31 states and 1217 transitions. [2022-11-21 16:31:05,086 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:31:05,086 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 31 states and 1217 transitions. [2022-11-21 16:31:05,089 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 32 states, 31 states have (on average 39.25806451612903) internal successors, (1217), 31 states have internal predecessors, (1217), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:31:05,092 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 32 states, 32 states have (on average 85.0) internal successors, (2720), 32 states have internal predecessors, (2720), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:31:05,094 INFO L81 ComplementDD]: Finished complementDD. Result has 32 states, 32 states have (on average 85.0) internal successors, (2720), 32 states have internal predecessors, (2720), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:31:05,094 INFO L175 Difference]: Start difference. First operand has 226 places, 158 transitions, 1289 flow. Second operand 31 states and 1217 transitions. [2022-11-21 16:31:05,094 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 254 places, 166 transitions, 1570 flow [2022-11-21 16:31:05,106 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 223 places, 166 transitions, 1374 flow, removed 15 selfloop flow, removed 31 redundant places. [2022-11-21 16:31:05,109 INFO L231 Difference]: Finished difference. Result has 223 places, 157 transitions, 1280 flow [2022-11-21 16:31:05,110 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=85, PETRI_DIFFERENCE_MINUEND_FLOW=1080, PETRI_DIFFERENCE_MINUEND_PLACES=193, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=157, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=100, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=57, PETRI_DIFFERENCE_SUBTRAHEND_STATES=31, PETRI_FLOW=1280, PETRI_PLACES=223, PETRI_TRANSITIONS=157} [2022-11-21 16:31:05,111 INFO L288 CegarLoopForPetriNet]: 71 programPoint places, 152 predicate places. [2022-11-21 16:31:05,111 INFO L495 AbstractCegarLoop]: Abstraction has has 223 places, 157 transitions, 1280 flow [2022-11-21 16:31:05,111 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 38.86666666666667) internal successors, (583), 15 states have internal predecessors, (583), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:31:05,111 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:31:05,112 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:31:05,112 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-21 16:31:05,112 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-21 16:31:05,112 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:31:05,113 INFO L85 PathProgramCache]: Analyzing trace with hash 1890786567, now seen corresponding path program 1 times [2022-11-21 16:31:05,113 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:31:05,113 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1246042212] [2022-11-21 16:31:05,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:31:05,113 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:31:05,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:31:05,278 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:31:05,278 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:31:05,278 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1246042212] [2022-11-21 16:31:05,278 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1246042212] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:31:05,279 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:31:05,279 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-21 16:31:05,279 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [985715823] [2022-11-21 16:31:05,279 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:31:05,279 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-21 16:31:05,280 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:31:05,280 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-21 16:31:05,307 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2022-11-21 16:31:05,307 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 49 out of 85 [2022-11-21 16:31:05,308 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 223 places, 157 transitions, 1280 flow. Second operand has 9 states, 9 states have (on average 51.55555555555556) internal successors, (464), 9 states have internal predecessors, (464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:31:05,308 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:31:05,308 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 49 of 85 [2022-11-21 16:31:05,308 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:31:05,575 INFO L130 PetriNetUnfolder]: 62/347 cut-off events. [2022-11-21 16:31:05,576 INFO L131 PetriNetUnfolder]: For 1574/1580 co-relation queries the response was YES. [2022-11-21 16:31:05,578 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1515 conditions, 347 events. 62/347 cut-off events. For 1574/1580 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 1815 event pairs, 28 based on Foata normal form. 14/350 useless extension candidates. Maximal degree in co-relation 1435. Up to 150 conditions per place. [2022-11-21 16:31:05,579 INFO L137 encePairwiseOnDemand]: 76/85 looper letters, 74 selfloop transitions, 23 changer transitions 37/181 dead transitions. [2022-11-21 16:31:05,579 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 232 places, 181 transitions, 1768 flow [2022-11-21 16:31:05,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-21 16:31:05,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-11-21 16:31:05,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 542 transitions. [2022-11-21 16:31:05,581 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6376470588235295 [2022-11-21 16:31:05,582 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 542 transitions. [2022-11-21 16:31:05,582 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 542 transitions. [2022-11-21 16:31:05,582 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:31:05,582 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 542 transitions. [2022-11-21 16:31:05,583 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 54.2) internal successors, (542), 10 states have internal predecessors, (542), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:31:05,585 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 85.0) internal successors, (935), 11 states have internal predecessors, (935), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:31:05,601 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 85.0) internal successors, (935), 11 states have internal predecessors, (935), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:31:05,601 INFO L175 Difference]: Start difference. First operand has 223 places, 157 transitions, 1280 flow. Second operand 10 states and 542 transitions. [2022-11-21 16:31:05,602 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 232 places, 181 transitions, 1768 flow [2022-11-21 16:31:05,614 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 200 places, 181 transitions, 1490 flow, removed 7 selfloop flow, removed 32 redundant places. [2022-11-21 16:31:05,617 INFO L231 Difference]: Finished difference. Result has 206 places, 139 transitions, 942 flow [2022-11-21 16:31:05,618 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=85, PETRI_DIFFERENCE_MINUEND_FLOW=1023, PETRI_DIFFERENCE_MINUEND_PLACES=191, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=157, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=23, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=134, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=942, PETRI_PLACES=206, PETRI_TRANSITIONS=139} [2022-11-21 16:31:05,620 INFO L288 CegarLoopForPetriNet]: 71 programPoint places, 135 predicate places. [2022-11-21 16:31:05,620 INFO L495 AbstractCegarLoop]: Abstraction has has 206 places, 139 transitions, 942 flow [2022-11-21 16:31:05,621 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 51.55555555555556) internal successors, (464), 9 states have internal predecessors, (464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:31:05,621 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:31:05,621 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:31:05,621 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-21 16:31:05,622 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-21 16:31:05,622 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:31:05,622 INFO L85 PathProgramCache]: Analyzing trace with hash -2022250554, now seen corresponding path program 1 times [2022-11-21 16:31:05,622 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:31:05,623 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1548710530] [2022-11-21 16:31:05,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:31:05,623 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:31:05,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:31:05,787 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:31:05,788 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:31:05,788 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1548710530] [2022-11-21 16:31:05,790 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1548710530] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:31:05,790 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:31:05,791 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-21 16:31:05,791 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [106776246] [2022-11-21 16:31:05,791 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:31:05,792 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-21 16:31:05,792 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:31:05,793 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-21 16:31:05,793 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2022-11-21 16:31:05,793 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 49 out of 85 [2022-11-21 16:31:05,794 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 206 places, 139 transitions, 942 flow. Second operand has 9 states, 9 states have (on average 51.55555555555556) internal successors, (464), 9 states have internal predecessors, (464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:31:05,794 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:31:05,794 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 49 of 85 [2022-11-21 16:31:05,795 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:31:06,023 INFO L130 PetriNetUnfolder]: 48/261 cut-off events. [2022-11-21 16:31:06,023 INFO L131 PetriNetUnfolder]: For 1004/1008 co-relation queries the response was YES. [2022-11-21 16:31:06,025 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1042 conditions, 261 events. 48/261 cut-off events. For 1004/1008 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 1100 event pairs, 24 based on Foata normal form. 5/260 useless extension candidates. Maximal degree in co-relation 1001. Up to 140 conditions per place. [2022-11-21 16:31:06,026 INFO L137 encePairwiseOnDemand]: 76/85 looper letters, 75 selfloop transitions, 22 changer transitions 15/144 dead transitions. [2022-11-21 16:31:06,026 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 194 places, 144 transitions, 1171 flow [2022-11-21 16:31:06,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-21 16:31:06,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-11-21 16:31:06,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 535 transitions. [2022-11-21 16:31:06,028 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6294117647058823 [2022-11-21 16:31:06,030 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 535 transitions. [2022-11-21 16:31:06,030 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 535 transitions. [2022-11-21 16:31:06,031 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:31:06,031 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 535 transitions. [2022-11-21 16:31:06,032 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 53.5) internal successors, (535), 10 states have internal predecessors, (535), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:31:06,033 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 85.0) internal successors, (935), 11 states have internal predecessors, (935), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:31:06,034 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 85.0) internal successors, (935), 11 states have internal predecessors, (935), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:31:06,035 INFO L175 Difference]: Start difference. First operand has 206 places, 139 transitions, 942 flow. Second operand 10 states and 535 transitions. [2022-11-21 16:31:06,035 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 194 places, 144 transitions, 1171 flow [2022-11-21 16:31:06,043 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 179 places, 144 transitions, 1052 flow, removed 15 selfloop flow, removed 15 redundant places. [2022-11-21 16:31:06,045 INFO L231 Difference]: Finished difference. Result has 179 places, 125 transitions, 813 flow [2022-11-21 16:31:06,046 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=85, PETRI_DIFFERENCE_MINUEND_FLOW=820, PETRI_DIFFERENCE_MINUEND_PLACES=170, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=138, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=116, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=813, PETRI_PLACES=179, PETRI_TRANSITIONS=125} [2022-11-21 16:31:06,047 INFO L288 CegarLoopForPetriNet]: 71 programPoint places, 108 predicate places. [2022-11-21 16:31:06,047 INFO L495 AbstractCegarLoop]: Abstraction has has 179 places, 125 transitions, 813 flow [2022-11-21 16:31:06,047 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 51.55555555555556) internal successors, (464), 9 states have internal predecessors, (464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:31:06,048 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:31:06,048 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:31:06,048 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-11-21 16:31:06,049 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-21 16:31:06,049 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:31:06,050 INFO L85 PathProgramCache]: Analyzing trace with hash 1270780837, now seen corresponding path program 2 times [2022-11-21 16:31:06,050 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:31:06,050 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [401869263] [2022-11-21 16:31:06,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:31:06,050 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:31:06,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:31:06,250 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:31:06,251 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:31:06,251 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [401869263] [2022-11-21 16:31:06,251 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [401869263] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:31:06,251 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:31:06,252 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-21 16:31:06,252 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1970810360] [2022-11-21 16:31:06,252 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:31:06,253 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-21 16:31:06,253 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:31:06,253 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-21 16:31:06,253 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2022-11-21 16:31:06,254 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 49 out of 85 [2022-11-21 16:31:06,255 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 179 places, 125 transitions, 813 flow. Second operand has 9 states, 9 states have (on average 51.55555555555556) internal successors, (464), 9 states have internal predecessors, (464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:31:06,255 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:31:06,255 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 49 of 85 [2022-11-21 16:31:06,256 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:31:06,492 INFO L130 PetriNetUnfolder]: 51/262 cut-off events. [2022-11-21 16:31:06,492 INFO L131 PetriNetUnfolder]: For 853/855 co-relation queries the response was YES. [2022-11-21 16:31:06,494 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1021 conditions, 262 events. 51/262 cut-off events. For 853/855 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 1105 event pairs, 23 based on Foata normal form. 8/263 useless extension candidates. Maximal degree in co-relation 988. Up to 119 conditions per place. [2022-11-21 16:31:06,495 INFO L137 encePairwiseOnDemand]: 76/85 looper letters, 57 selfloop transitions, 20 changer transitions 25/144 dead transitions. [2022-11-21 16:31:06,495 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 171 places, 144 transitions, 1150 flow [2022-11-21 16:31:06,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-21 16:31:06,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-11-21 16:31:06,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 534 transitions. [2022-11-21 16:31:06,497 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6282352941176471 [2022-11-21 16:31:06,498 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 534 transitions. [2022-11-21 16:31:06,498 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 534 transitions. [2022-11-21 16:31:06,498 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:31:06,498 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 534 transitions. [2022-11-21 16:31:06,500 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 53.4) internal successors, (534), 10 states have internal predecessors, (534), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:31:06,501 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 85.0) internal successors, (935), 11 states have internal predecessors, (935), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:31:06,502 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 85.0) internal successors, (935), 11 states have internal predecessors, (935), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:31:06,502 INFO L175 Difference]: Start difference. First operand has 179 places, 125 transitions, 813 flow. Second operand 10 states and 534 transitions. [2022-11-21 16:31:06,502 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 171 places, 144 transitions, 1150 flow [2022-11-21 16:31:06,510 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 163 places, 144 transitions, 1063 flow, removed 2 selfloop flow, removed 8 redundant places. [2022-11-21 16:31:06,513 INFO L231 Difference]: Finished difference. Result has 170 places, 116 transitions, 750 flow [2022-11-21 16:31:06,513 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=85, PETRI_DIFFERENCE_MINUEND_FLOW=740, PETRI_DIFFERENCE_MINUEND_PLACES=154, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=125, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=105, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=750, PETRI_PLACES=170, PETRI_TRANSITIONS=116} [2022-11-21 16:31:06,514 INFO L288 CegarLoopForPetriNet]: 71 programPoint places, 99 predicate places. [2022-11-21 16:31:06,514 INFO L495 AbstractCegarLoop]: Abstraction has has 170 places, 116 transitions, 750 flow [2022-11-21 16:31:06,515 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 51.55555555555556) internal successors, (464), 9 states have internal predecessors, (464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:31:06,515 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:31:06,515 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:31:06,515 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-11-21 16:31:06,516 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-21 16:31:06,516 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:31:06,516 INFO L85 PathProgramCache]: Analyzing trace with hash 294420667, now seen corresponding path program 3 times [2022-11-21 16:31:06,517 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:31:06,517 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [459439201] [2022-11-21 16:31:06,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:31:06,517 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:31:06,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:31:06,687 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:31:06,687 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:31:06,687 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [459439201] [2022-11-21 16:31:06,687 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [459439201] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:31:06,688 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:31:06,688 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-21 16:31:06,688 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1394023284] [2022-11-21 16:31:06,688 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:31:06,688 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-21 16:31:06,689 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:31:06,689 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-21 16:31:06,689 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2022-11-21 16:31:06,690 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 49 out of 85 [2022-11-21 16:31:06,691 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 170 places, 116 transitions, 750 flow. Second operand has 9 states, 9 states have (on average 51.55555555555556) internal successors, (464), 9 states have internal predecessors, (464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:31:06,691 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:31:06,691 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 49 of 85 [2022-11-21 16:31:06,691 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:31:06,938 INFO L130 PetriNetUnfolder]: 41/216 cut-off events. [2022-11-21 16:31:06,938 INFO L131 PetriNetUnfolder]: For 684/686 co-relation queries the response was YES. [2022-11-21 16:31:06,939 INFO L83 FinitePrefix]: Finished finitePrefix Result has 866 conditions, 216 events. 41/216 cut-off events. For 684/686 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 790 event pairs, 12 based on Foata normal form. 8/219 useless extension candidates. Maximal degree in co-relation 828. Up to 75 conditions per place. [2022-11-21 16:31:06,940 INFO L137 encePairwiseOnDemand]: 76/85 looper letters, 42 selfloop transitions, 5 changer transitions 42/127 dead transitions. [2022-11-21 16:31:06,940 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 164 places, 127 transitions, 993 flow [2022-11-21 16:31:06,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-21 16:31:06,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-11-21 16:31:06,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 583 transitions. [2022-11-21 16:31:06,945 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6235294117647059 [2022-11-21 16:31:06,945 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 583 transitions. [2022-11-21 16:31:06,945 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 583 transitions. [2022-11-21 16:31:06,946 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:31:06,946 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 583 transitions. [2022-11-21 16:31:06,947 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 53.0) internal successors, (583), 11 states have internal predecessors, (583), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:31:06,948 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 85.0) internal successors, (1020), 12 states have internal predecessors, (1020), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:31:06,949 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 85.0) internal successors, (1020), 12 states have internal predecessors, (1020), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:31:06,949 INFO L175 Difference]: Start difference. First operand has 170 places, 116 transitions, 750 flow. Second operand 11 states and 583 transitions. [2022-11-21 16:31:06,949 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 164 places, 127 transitions, 993 flow [2022-11-21 16:31:06,956 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 150 places, 127 transitions, 901 flow, removed 9 selfloop flow, removed 14 redundant places. [2022-11-21 16:31:06,958 INFO L231 Difference]: Finished difference. Result has 155 places, 84 transitions, 415 flow [2022-11-21 16:31:06,958 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=85, PETRI_DIFFERENCE_MINUEND_FLOW=664, PETRI_DIFFERENCE_MINUEND_PLACES=140, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=116, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=111, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=415, PETRI_PLACES=155, PETRI_TRANSITIONS=84} [2022-11-21 16:31:06,959 INFO L288 CegarLoopForPetriNet]: 71 programPoint places, 84 predicate places. [2022-11-21 16:31:06,959 INFO L495 AbstractCegarLoop]: Abstraction has has 155 places, 84 transitions, 415 flow [2022-11-21 16:31:06,959 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 51.55555555555556) internal successors, (464), 9 states have internal predecessors, (464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:31:06,960 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:31:06,960 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:31:06,960 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-11-21 16:31:06,960 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-21 16:31:06,960 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:31:06,961 INFO L85 PathProgramCache]: Analyzing trace with hash -1307434553, now seen corresponding path program 4 times [2022-11-21 16:31:06,961 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:31:06,961 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [903400955] [2022-11-21 16:31:06,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:31:06,961 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:31:06,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:31:07,131 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:31:07,131 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:31:07,132 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [903400955] [2022-11-21 16:31:07,132 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [903400955] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:31:07,132 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:31:07,132 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-21 16:31:07,132 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [676284366] [2022-11-21 16:31:07,132 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:31:07,134 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-21 16:31:07,134 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:31:07,134 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-21 16:31:07,135 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2022-11-21 16:31:07,135 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 49 out of 85 [2022-11-21 16:31:07,136 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 155 places, 84 transitions, 415 flow. Second operand has 9 states, 9 states have (on average 51.55555555555556) internal successors, (464), 9 states have internal predecessors, (464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:31:07,136 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:31:07,136 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 49 of 85 [2022-11-21 16:31:07,136 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:31:07,345 INFO L130 PetriNetUnfolder]: 22/130 cut-off events. [2022-11-21 16:31:07,345 INFO L131 PetriNetUnfolder]: For 231/231 co-relation queries the response was YES. [2022-11-21 16:31:07,346 INFO L83 FinitePrefix]: Finished finitePrefix Result has 449 conditions, 130 events. 22/130 cut-off events. For 231/231 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 266 event pairs, 10 based on Foata normal form. 2/129 useless extension candidates. Maximal degree in co-relation 416. Up to 50 conditions per place. [2022-11-21 16:31:07,347 INFO L137 encePairwiseOnDemand]: 76/85 looper letters, 26 selfloop transitions, 14 changer transitions 12/89 dead transitions. [2022-11-21 16:31:07,347 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 134 places, 89 transitions, 539 flow [2022-11-21 16:31:07,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-21 16:31:07,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-11-21 16:31:07,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 528 transitions. [2022-11-21 16:31:07,349 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6211764705882353 [2022-11-21 16:31:07,349 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 528 transitions. [2022-11-21 16:31:07,350 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 528 transitions. [2022-11-21 16:31:07,350 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:31:07,350 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 528 transitions. [2022-11-21 16:31:07,351 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 52.8) internal successors, (528), 10 states have internal predecessors, (528), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:31:07,353 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 85.0) internal successors, (935), 11 states have internal predecessors, (935), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:31:07,353 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 85.0) internal successors, (935), 11 states have internal predecessors, (935), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:31:07,353 INFO L175 Difference]: Start difference. First operand has 155 places, 84 transitions, 415 flow. Second operand 10 states and 528 transitions. [2022-11-21 16:31:07,353 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 134 places, 89 transitions, 539 flow [2022-11-21 16:31:07,356 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 112 places, 89 transitions, 443 flow, removed 18 selfloop flow, removed 22 redundant places. [2022-11-21 16:31:07,357 INFO L231 Difference]: Finished difference. Result has 113 places, 77 transitions, 312 flow [2022-11-21 16:31:07,357 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=85, PETRI_DIFFERENCE_MINUEND_FLOW=325, PETRI_DIFFERENCE_MINUEND_PLACES=103, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=84, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=70, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=312, PETRI_PLACES=113, PETRI_TRANSITIONS=77} [2022-11-21 16:31:07,359 INFO L288 CegarLoopForPetriNet]: 71 programPoint places, 42 predicate places. [2022-11-21 16:31:07,359 INFO L495 AbstractCegarLoop]: Abstraction has has 113 places, 77 transitions, 312 flow [2022-11-21 16:31:07,359 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 51.55555555555556) internal successors, (464), 9 states have internal predecessors, (464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:31:07,359 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:31:07,360 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:31:07,360 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-11-21 16:31:07,360 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-21 16:31:07,360 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:31:07,361 INFO L85 PathProgramCache]: Analyzing trace with hash 1486445875, now seen corresponding path program 5 times [2022-11-21 16:31:07,361 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:31:07,361 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [635311827] [2022-11-21 16:31:07,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:31:07,361 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:31:07,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:31:07,512 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:31:07,513 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:31:07,513 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [635311827] [2022-11-21 16:31:07,513 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [635311827] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:31:07,513 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:31:07,514 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-21 16:31:07,514 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [543307826] [2022-11-21 16:31:07,514 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:31:07,514 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-21 16:31:07,514 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:31:07,515 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-21 16:31:07,515 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2022-11-21 16:31:07,516 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 49 out of 85 [2022-11-21 16:31:07,516 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 113 places, 77 transitions, 312 flow. Second operand has 9 states, 9 states have (on average 51.55555555555556) internal successors, (464), 9 states have internal predecessors, (464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:31:07,516 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:31:07,516 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 49 of 85 [2022-11-21 16:31:07,517 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:31:07,703 INFO L130 PetriNetUnfolder]: 16/104 cut-off events. [2022-11-21 16:31:07,703 INFO L131 PetriNetUnfolder]: For 57/57 co-relation queries the response was YES. [2022-11-21 16:31:07,704 INFO L83 FinitePrefix]: Finished finitePrefix Result has 301 conditions, 104 events. 16/104 cut-off events. For 57/57 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 153 event pairs, 6 based on Foata normal form. 2/104 useless extension candidates. Maximal degree in co-relation 283. Up to 26 conditions per place. [2022-11-21 16:31:07,704 INFO L137 encePairwiseOnDemand]: 76/85 looper letters, 23 selfloop transitions, 7 changer transitions 16/81 dead transitions. [2022-11-21 16:31:07,705 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 113 places, 81 transitions, 408 flow [2022-11-21 16:31:07,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-21 16:31:07,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-11-21 16:31:07,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 579 transitions. [2022-11-21 16:31:07,706 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6192513368983957 [2022-11-21 16:31:07,707 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 579 transitions. [2022-11-21 16:31:07,707 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 579 transitions. [2022-11-21 16:31:07,707 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:31:07,707 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 579 transitions. [2022-11-21 16:31:07,708 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 52.63636363636363) internal successors, (579), 11 states have internal predecessors, (579), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:31:07,710 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 85.0) internal successors, (1020), 12 states have internal predecessors, (1020), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:31:07,710 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 85.0) internal successors, (1020), 12 states have internal predecessors, (1020), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:31:07,710 INFO L175 Difference]: Start difference. First operand has 113 places, 77 transitions, 312 flow. Second operand 11 states and 579 transitions. [2022-11-21 16:31:07,710 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 113 places, 81 transitions, 408 flow [2022-11-21 16:31:07,712 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 103 places, 81 transitions, 355 flow, removed 4 selfloop flow, removed 10 redundant places. [2022-11-21 16:31:07,713 INFO L231 Difference]: Finished difference. Result has 104 places, 65 transitions, 203 flow [2022-11-21 16:31:07,713 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=85, PETRI_DIFFERENCE_MINUEND_FLOW=259, PETRI_DIFFERENCE_MINUEND_PLACES=93, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=77, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=70, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=203, PETRI_PLACES=104, PETRI_TRANSITIONS=65} [2022-11-21 16:31:07,714 INFO L288 CegarLoopForPetriNet]: 71 programPoint places, 33 predicate places. [2022-11-21 16:31:07,714 INFO L495 AbstractCegarLoop]: Abstraction has has 104 places, 65 transitions, 203 flow [2022-11-21 16:31:07,715 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 51.55555555555556) internal successors, (464), 9 states have internal predecessors, (464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:31:07,715 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:31:07,715 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:31:07,715 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-11-21 16:31:07,716 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-21 16:31:07,716 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:31:07,716 INFO L85 PathProgramCache]: Analyzing trace with hash -549651739, now seen corresponding path program 6 times [2022-11-21 16:31:07,716 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:31:07,716 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [472708795] [2022-11-21 16:31:07,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:31:07,717 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:31:07,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:31:07,869 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:31:07,870 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:31:07,870 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [472708795] [2022-11-21 16:31:07,870 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [472708795] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:31:07,870 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:31:07,871 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-21 16:31:07,871 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1764755941] [2022-11-21 16:31:07,871 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:31:07,871 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-21 16:31:07,871 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:31:07,872 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-21 16:31:07,872 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2022-11-21 16:31:07,873 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 49 out of 85 [2022-11-21 16:31:07,873 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 104 places, 65 transitions, 203 flow. Second operand has 9 states, 9 states have (on average 51.55555555555556) internal successors, (464), 9 states have internal predecessors, (464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:31:07,873 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:31:07,874 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 49 of 85 [2022-11-21 16:31:07,874 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:31:08,073 INFO L130 PetriNetUnfolder]: 9/77 cut-off events. [2022-11-21 16:31:08,073 INFO L131 PetriNetUnfolder]: For 22/22 co-relation queries the response was YES. [2022-11-21 16:31:08,073 INFO L83 FinitePrefix]: Finished finitePrefix Result has 183 conditions, 77 events. 9/77 cut-off events. For 22/22 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 46 event pairs, 0 based on Foata normal form. 2/79 useless extension candidates. Maximal degree in co-relation 169. Up to 11 conditions per place. [2022-11-21 16:31:08,074 INFO L137 encePairwiseOnDemand]: 76/85 looper letters, 0 selfloop transitions, 0 changer transitions 68/68 dead transitions. [2022-11-21 16:31:08,074 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 99 places, 68 transitions, 273 flow [2022-11-21 16:31:08,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-21 16:31:08,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2022-11-21 16:31:08,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 620 transitions. [2022-11-21 16:31:08,076 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6078431372549019 [2022-11-21 16:31:08,076 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 620 transitions. [2022-11-21 16:31:08,076 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 620 transitions. [2022-11-21 16:31:08,076 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:31:08,077 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 620 transitions. [2022-11-21 16:31:08,078 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 51.666666666666664) internal successors, (620), 12 states have internal predecessors, (620), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:31:08,079 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 85.0) internal successors, (1105), 13 states have internal predecessors, (1105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:31:08,080 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 85.0) internal successors, (1105), 13 states have internal predecessors, (1105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:31:08,080 INFO L175 Difference]: Start difference. First operand has 104 places, 65 transitions, 203 flow. Second operand 12 states and 620 transitions. [2022-11-21 16:31:08,080 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 99 places, 68 transitions, 273 flow [2022-11-21 16:31:08,081 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 84 places, 68 transitions, 223 flow, removed 5 selfloop flow, removed 15 redundant places. [2022-11-21 16:31:08,082 INFO L231 Difference]: Finished difference. Result has 84 places, 0 transitions, 0 flow [2022-11-21 16:31:08,082 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=85, PETRI_DIFFERENCE_MINUEND_FLOW=149, PETRI_DIFFERENCE_MINUEND_PLACES=73, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=64, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=64, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=0, PETRI_PLACES=84, PETRI_TRANSITIONS=0} [2022-11-21 16:31:08,083 INFO L288 CegarLoopForPetriNet]: 71 programPoint places, 13 predicate places. [2022-11-21 16:31:08,083 INFO L495 AbstractCegarLoop]: Abstraction has has 84 places, 0 transitions, 0 flow [2022-11-21 16:31:08,083 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 51.55555555555556) internal successors, (464), 9 states have internal predecessors, (464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:31:08,086 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 7 remaining) [2022-11-21 16:31:08,086 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 7 remaining) [2022-11-21 16:31:08,086 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 7 remaining) [2022-11-21 16:31:08,087 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 7 remaining) [2022-11-21 16:31:08,087 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 7 remaining) [2022-11-21 16:31:08,087 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 7 remaining) [2022-11-21 16:31:08,087 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 7 remaining) [2022-11-21 16:31:08,087 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-11-21 16:31:08,088 INFO L444 BasicCegarLoop]: Path program histogram: [8, 6, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:31:08,093 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-21 16:31:08,094 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-21 16:31:08,098 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.11 04:31:08 BasicIcfg [2022-11-21 16:31:08,098 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-21 16:31:08,099 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-21 16:31:08,099 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-21 16:31:08,099 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-21 16:31:08,100 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 04:30:49" (3/4) ... [2022-11-21 16:31:08,102 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-21 16:31:08,108 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2022-11-21 16:31:08,112 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2022-11-21 16:31:08,112 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-11-21 16:31:08,113 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-21 16:31:08,148 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15983043-6c25-4520-80b1-c1585ba5927a/bin/uautomizer-vX5HgA9Q3a/witness.graphml [2022-11-21 16:31:08,148 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-21 16:31:08,149 INFO L158 Benchmark]: Toolchain (without parser) took 19933.35ms. Allocated memory was 163.6MB in the beginning and 346.0MB in the end (delta: 182.5MB). Free memory was 117.7MB in the beginning and 160.5MB in the end (delta: -42.9MB). Peak memory consumption was 142.1MB. Max. memory is 16.1GB. [2022-11-21 16:31:08,149 INFO L158 Benchmark]: CDTParser took 0.24ms. Allocated memory is still 121.6MB. Free memory is still 97.6MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-21 16:31:08,149 INFO L158 Benchmark]: CACSL2BoogieTranslator took 731.67ms. Allocated memory is still 163.6MB. Free memory was 117.3MB in the beginning and 132.1MB in the end (delta: -14.8MB). Peak memory consumption was 33.7MB. Max. memory is 16.1GB. [2022-11-21 16:31:08,149 INFO L158 Benchmark]: Boogie Procedure Inliner took 105.66ms. Allocated memory is still 163.6MB. Free memory was 132.1MB in the beginning and 129.5MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-21 16:31:08,150 INFO L158 Benchmark]: Boogie Preprocessor took 46.72ms. Allocated memory is still 163.6MB. Free memory was 129.5MB in the beginning and 128.0MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-21 16:31:08,150 INFO L158 Benchmark]: RCFGBuilder took 490.79ms. Allocated memory is still 163.6MB. Free memory was 128.0MB in the beginning and 114.1MB in the end (delta: 13.8MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-11-21 16:31:08,151 INFO L158 Benchmark]: TraceAbstraction took 18503.34ms. Allocated memory was 163.6MB in the beginning and 346.0MB in the end (delta: 182.5MB). Free memory was 113.4MB in the beginning and 163.7MB in the end (delta: -50.3MB). Peak memory consumption was 135.7MB. Max. memory is 16.1GB. [2022-11-21 16:31:08,151 INFO L158 Benchmark]: Witness Printer took 49.28ms. Allocated memory is still 346.0MB. Free memory was 163.7MB in the beginning and 160.5MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-21 16:31:08,155 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24ms. Allocated memory is still 121.6MB. Free memory is still 97.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 731.67ms. Allocated memory is still 163.6MB. Free memory was 117.3MB in the beginning and 132.1MB in the end (delta: -14.8MB). Peak memory consumption was 33.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 105.66ms. Allocated memory is still 163.6MB. Free memory was 132.1MB in the beginning and 129.5MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 46.72ms. Allocated memory is still 163.6MB. Free memory was 129.5MB in the beginning and 128.0MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 490.79ms. Allocated memory is still 163.6MB. Free memory was 128.0MB in the beginning and 114.1MB in the end (delta: 13.8MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 18503.34ms. Allocated memory was 163.6MB in the beginning and 346.0MB in the end (delta: 182.5MB). Free memory was 113.4MB in the beginning and 163.7MB in the end (delta: -50.3MB). Peak memory consumption was 135.7MB. Max. memory is 16.1GB. * Witness Printer took 49.28ms. Allocated memory is still 346.0MB. Free memory was 163.7MB in the beginning and 160.5MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 936]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 936]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 924]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 924]: 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, 103 locations, 7 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: 18.4s, OverallIterations: 21, TraceHistogramMax: 1, PathProgramHistogramMax: 8, EmptinessCheckTime: 0.0s, AutomataDifference: 11.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2136 SdHoareTripleChecker+Valid, 3.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2136 mSDsluCounter, 2940 SdHoareTripleChecker+Invalid, 2.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2506 mSDsCounter, 77 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 4425 IncrementalHoareTripleChecker+Invalid, 4502 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 77 mSolverCounterUnsat, 434 mSDtfsCounter, 4425 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 557 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 524 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3228 ImplicationChecksByTransitivity, 7.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1289occurred in iteration=13, InterpolantAutomatonStates: 389, 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: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 6.3s InterpolantComputationTime, 1113 NumberOfCodeBlocks, 1113 NumberOfCodeBlocksAsserted, 21 NumberOfCheckSat, 1092 ConstructedInterpolants, 0 QuantifiedInterpolants, 4766 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 21 InterpolantComputations, 21 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-11-21 16:31:08,189 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15983043-6c25-4520-80b1-c1585ba5927a/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE