./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/goblint-regression/36-apron_22-traces-write-centered-vs-meet-mutex_true_no-overflow.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version e04fb08f Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95c8bcb6-3523-4df2-9ddd-44b7e8cc0edf/bin/uautomizer-tPACEb0tL8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95c8bcb6-3523-4df2-9ddd-44b7e8cc0edf/bin/uautomizer-tPACEb0tL8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95c8bcb6-3523-4df2-9ddd-44b7e8cc0edf/bin/uautomizer-tPACEb0tL8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95c8bcb6-3523-4df2-9ddd-44b7e8cc0edf/bin/uautomizer-tPACEb0tL8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/36-apron_22-traces-write-centered-vs-meet-mutex_true_no-overflow.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95c8bcb6-3523-4df2-9ddd-44b7e8cc0edf/bin/uautomizer-tPACEb0tL8/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95c8bcb6-3523-4df2-9ddd-44b7e8cc0edf/bin/uautomizer-tPACEb0tL8 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 6883737711af32a6a824eca7af237353e2fdaf7712a6b3c22083c0d47b565ee7 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-e04fb08 [2022-11-16 12:35:55,603 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 12:35:55,609 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 12:35:55,653 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 12:35:55,656 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 12:35:55,657 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 12:35:55,659 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 12:35:55,661 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 12:35:55,664 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 12:35:55,665 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 12:35:55,666 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 12:35:55,668 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 12:35:55,669 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 12:35:55,670 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 12:35:55,672 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 12:35:55,673 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 12:35:55,675 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 12:35:55,676 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 12:35:55,678 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 12:35:55,681 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 12:35:55,683 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 12:35:55,694 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 12:35:55,696 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 12:35:55,699 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 12:35:55,704 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 12:35:55,710 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 12:35:55,711 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 12:35:55,712 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 12:35:55,714 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 12:35:55,715 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 12:35:55,716 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 12:35:55,717 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 12:35:55,719 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 12:35:55,721 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 12:35:55,724 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 12:35:55,725 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 12:35:55,727 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 12:35:55,728 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 12:35:55,728 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 12:35:55,729 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 12:35:55,730 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 12:35:55,731 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95c8bcb6-3523-4df2-9ddd-44b7e8cc0edf/bin/uautomizer-tPACEb0tL8/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-11-16 12:35:55,775 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 12:35:55,776 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 12:35:55,776 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 12:35:55,776 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 12:35:55,777 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-16 12:35:55,777 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-16 12:35:55,778 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-16 12:35:55,778 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-16 12:35:55,778 INFO L138 SettingsManager]: * Use SBE=true [2022-11-16 12:35:55,779 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 12:35:55,779 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-16 12:35:55,779 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-16 12:35:55,779 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-16 12:35:55,780 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-16 12:35:55,780 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 12:35:55,780 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-16 12:35:55,780 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-16 12:35:55,780 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-16 12:35:55,781 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-16 12:35:55,781 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-16 12:35:55,781 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 12:35:55,781 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 12:35:55,781 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-16 12:35:55,782 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 12:35:55,782 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-16 12:35:55,782 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-16 12:35:55,782 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 12:35:55,783 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 12:35:55,783 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-16 12:35:55,783 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-16 12:35:55,783 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-16 12:35:55,783 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-16 12:35:55,784 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-16 12:35:55,784 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-16 12:35:55,784 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-16 12:35:55,784 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_95c8bcb6-3523-4df2-9ddd-44b7e8cc0edf/bin/uautomizer-tPACEb0tL8/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95c8bcb6-3523-4df2-9ddd-44b7e8cc0edf/bin/uautomizer-tPACEb0tL8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6883737711af32a6a824eca7af237353e2fdaf7712a6b3c22083c0d47b565ee7 [2022-11-16 12:35:56,187 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 12:35:56,214 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 12:35:56,217 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 12:35:56,219 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 12:35:56,220 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 12:35:56,222 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95c8bcb6-3523-4df2-9ddd-44b7e8cc0edf/bin/uautomizer-tPACEb0tL8/../../sv-benchmarks/c/goblint-regression/36-apron_22-traces-write-centered-vs-meet-mutex_true_no-overflow.i [2022-11-16 12:35:56,308 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95c8bcb6-3523-4df2-9ddd-44b7e8cc0edf/bin/uautomizer-tPACEb0tL8/data/ab1ed5529/06b6510fc2e34b2aac0b6aa355273523/FLAGf69ec1a12 [2022-11-16 12:35:57,009 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 12:35:57,010 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95c8bcb6-3523-4df2-9ddd-44b7e8cc0edf/sv-benchmarks/c/goblint-regression/36-apron_22-traces-write-centered-vs-meet-mutex_true_no-overflow.i [2022-11-16 12:35:57,025 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95c8bcb6-3523-4df2-9ddd-44b7e8cc0edf/bin/uautomizer-tPACEb0tL8/data/ab1ed5529/06b6510fc2e34b2aac0b6aa355273523/FLAGf69ec1a12 [2022-11-16 12:35:57,238 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95c8bcb6-3523-4df2-9ddd-44b7e8cc0edf/bin/uautomizer-tPACEb0tL8/data/ab1ed5529/06b6510fc2e34b2aac0b6aa355273523 [2022-11-16 12:35:57,250 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 12:35:57,252 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 12:35:57,255 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 12:35:57,256 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 12:35:57,266 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 12:35:57,267 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:35:57" (1/1) ... [2022-11-16 12:35:57,269 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@82291ff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:35:57, skipping insertion in model container [2022-11-16 12:35:57,271 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:35:57" (1/1) ... [2022-11-16 12:35:57,282 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 12:35:57,361 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 12:35:57,652 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95c8bcb6-3523-4df2-9ddd-44b7e8cc0edf/sv-benchmarks/c/goblint-regression/36-apron_22-traces-write-centered-vs-meet-mutex_true_no-overflow.i[1120,1133] [2022-11-16 12:35:57,961 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 12:35:57,985 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 12:35:58,002 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95c8bcb6-3523-4df2-9ddd-44b7e8cc0edf/sv-benchmarks/c/goblint-regression/36-apron_22-traces-write-centered-vs-meet-mutex_true_no-overflow.i[1120,1133] [2022-11-16 12:35:58,080 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 12:35:58,134 INFO L208 MainTranslator]: Completed translation [2022-11-16 12:35:58,135 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:35:58 WrapperNode [2022-11-16 12:35:58,135 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 12:35:58,137 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 12:35:58,137 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 12:35:58,137 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 12:35:58,147 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:35:58" (1/1) ... [2022-11-16 12:35:58,180 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:35:58" (1/1) ... [2022-11-16 12:35:58,233 INFO L138 Inliner]: procedures = 165, calls = 42, calls flagged for inlining = 9, calls inlined = 11, statements flattened = 167 [2022-11-16 12:35:58,234 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 12:35:58,235 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 12:35:58,235 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 12:35:58,235 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 12:35:58,247 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:35:58" (1/1) ... [2022-11-16 12:35:58,248 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:35:58" (1/1) ... [2022-11-16 12:35:58,267 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:35:58" (1/1) ... [2022-11-16 12:35:58,268 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:35:58" (1/1) ... [2022-11-16 12:35:58,275 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:35:58" (1/1) ... [2022-11-16 12:35:58,292 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:35:58" (1/1) ... [2022-11-16 12:35:58,294 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:35:58" (1/1) ... [2022-11-16 12:35:58,296 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:35:58" (1/1) ... [2022-11-16 12:35:58,299 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 12:35:58,300 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 12:35:58,300 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 12:35:58,300 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 12:35:58,301 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:35:58" (1/1) ... [2022-11-16 12:35:58,323 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 12:35:58,339 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95c8bcb6-3523-4df2-9ddd-44b7e8cc0edf/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:35:58,369 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95c8bcb6-3523-4df2-9ddd-44b7e8cc0edf/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-16 12:35:58,399 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95c8bcb6-3523-4df2-9ddd-44b7e8cc0edf/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-16 12:35:58,425 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-16 12:35:58,426 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-16 12:35:58,426 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-16 12:35:58,426 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-16 12:35:58,427 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-11-16 12:35:58,427 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-11-16 12:35:58,427 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-16 12:35:58,428 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-16 12:35:58,429 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 12:35:58,429 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 12:35:58,431 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-16 12:35:58,635 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 12:35:58,638 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 12:35:59,201 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 12:35:59,227 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 12:35:59,227 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-16 12:35:59,230 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:35:59 BoogieIcfgContainer [2022-11-16 12:35:59,231 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 12:35:59,234 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-16 12:35:59,234 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-16 12:35:59,245 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-16 12:35:59,245 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 12:35:57" (1/3) ... [2022-11-16 12:35:59,246 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35a63eff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 12:35:59, skipping insertion in model container [2022-11-16 12:35:59,246 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:35:58" (2/3) ... [2022-11-16 12:35:59,247 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35a63eff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 12:35:59, skipping insertion in model container [2022-11-16 12:35:59,247 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:35:59" (3/3) ... [2022-11-16 12:35:59,249 INFO L112 eAbstractionObserver]: Analyzing ICFG 36-apron_22-traces-write-centered-vs-meet-mutex_true_no-overflow.i [2022-11-16 12:35:59,266 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-16 12:35:59,280 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-16 12:35:59,280 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 12 error locations. [2022-11-16 12:35:59,280 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-16 12:35:59,438 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-16 12:35:59,489 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 215 places, 224 transitions, 453 flow [2022-11-16 12:35:59,729 INFO L130 PetriNetUnfolder]: 12/227 cut-off events. [2022-11-16 12:35:59,729 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-16 12:35:59,742 INFO L83 FinitePrefix]: Finished finitePrefix Result has 231 conditions, 227 events. 12/227 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 270 event pairs, 0 based on Foata normal form. 0/202 useless extension candidates. Maximal degree in co-relation 177. Up to 2 conditions per place. [2022-11-16 12:35:59,743 INFO L82 GeneralOperation]: Start removeDead. Operand has 215 places, 224 transitions, 453 flow [2022-11-16 12:35:59,761 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 214 places, 222 transitions, 447 flow [2022-11-16 12:35:59,785 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-16 12:35:59,806 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;@31be5839, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 12:35:59,806 INFO L358 AbstractCegarLoop]: Starting to check reachability of 19 error locations. [2022-11-16 12:35:59,837 INFO L130 PetriNetUnfolder]: 0/82 cut-off events. [2022-11-16 12:35:59,837 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-16 12:35:59,838 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:35:59,839 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:35:59,840 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2022-11-16 12:35:59,846 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:35:59,847 INFO L85 PathProgramCache]: Analyzing trace with hash 927480398, now seen corresponding path program 1 times [2022-11-16 12:35:59,860 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:35:59,861 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [931823739] [2022-11-16 12:35:59,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:35:59,862 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:36:00,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:36:00,492 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:36:00,493 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:36:00,494 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [931823739] [2022-11-16 12:36:00,496 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [931823739] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:36:00,496 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:36:00,496 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 12:36:00,499 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1256772354] [2022-11-16 12:36:00,501 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:36:00,514 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 12:36:00,515 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:36:00,575 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 12:36:00,585 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-16 12:36:00,596 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 193 out of 224 [2022-11-16 12:36:00,613 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 214 places, 222 transitions, 447 flow. Second operand has 4 states, 4 states have (on average 194.5) internal successors, (778), 4 states have internal predecessors, (778), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:36:00,614 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:36:00,614 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 193 of 224 [2022-11-16 12:36:00,615 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:36:00,814 INFO L130 PetriNetUnfolder]: 5/211 cut-off events. [2022-11-16 12:36:00,815 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-16 12:36:00,818 INFO L83 FinitePrefix]: Finished finitePrefix Result has 236 conditions, 211 events. 5/211 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 243 event pairs, 0 based on Foata normal form. 32/220 useless extension candidates. Maximal degree in co-relation 185. Up to 17 conditions per place. [2022-11-16 12:36:00,825 INFO L137 encePairwiseOnDemand]: 214/224 looper letters, 18 selfloop transitions, 2 changer transitions 0/211 dead transitions. [2022-11-16 12:36:00,827 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 213 places, 211 transitions, 465 flow [2022-11-16 12:36:00,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 12:36:00,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-11-16 12:36:00,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 810 transitions. [2022-11-16 12:36:00,862 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9040178571428571 [2022-11-16 12:36:00,863 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 810 transitions. [2022-11-16 12:36:00,863 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 810 transitions. [2022-11-16 12:36:00,867 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:36:00,871 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 810 transitions. [2022-11-16 12:36:00,876 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 202.5) internal successors, (810), 4 states have internal predecessors, (810), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:36:00,884 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 224.0) internal successors, (1120), 5 states have internal predecessors, (1120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:36:00,886 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 224.0) internal successors, (1120), 5 states have internal predecessors, (1120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:36:00,888 INFO L175 Difference]: Start difference. First operand has 214 places, 222 transitions, 447 flow. Second operand 4 states and 810 transitions. [2022-11-16 12:36:00,890 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 213 places, 211 transitions, 465 flow [2022-11-16 12:36:00,894 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 212 places, 211 transitions, 464 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-16 12:36:00,900 INFO L231 Difference]: Finished difference. Result has 212 places, 211 transitions, 428 flow [2022-11-16 12:36:00,903 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=224, PETRI_DIFFERENCE_MINUEND_FLOW=424, PETRI_DIFFERENCE_MINUEND_PLACES=209, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=211, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=209, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=428, PETRI_PLACES=212, PETRI_TRANSITIONS=211} [2022-11-16 12:36:00,908 INFO L288 CegarLoopForPetriNet]: 214 programPoint places, -2 predicate places. [2022-11-16 12:36:00,908 INFO L495 AbstractCegarLoop]: Abstraction has has 212 places, 211 transitions, 428 flow [2022-11-16 12:36:00,909 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 194.5) internal successors, (778), 4 states have internal predecessors, (778), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:36:00,909 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:36:00,910 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:36:00,910 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-16 12:36:00,911 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2022-11-16 12:36:00,911 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:36:00,912 INFO L85 PathProgramCache]: Analyzing trace with hash -1312878296, now seen corresponding path program 1 times [2022-11-16 12:36:00,912 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:36:00,913 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [971134573] [2022-11-16 12:36:00,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:36:00,913 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:36:00,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:36:01,130 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:36:01,131 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:36:01,131 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [971134573] [2022-11-16 12:36:01,131 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [971134573] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:36:01,132 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:36:01,132 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 12:36:01,132 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [221022376] [2022-11-16 12:36:01,133 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:36:01,135 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 12:36:01,139 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:36:01,140 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 12:36:01,140 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-16 12:36:01,145 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 190 out of 224 [2022-11-16 12:36:01,146 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 212 places, 211 transitions, 428 flow. Second operand has 4 states, 4 states have (on average 191.75) internal successors, (767), 4 states have internal predecessors, (767), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:36:01,147 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:36:01,149 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 190 of 224 [2022-11-16 12:36:01,149 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:36:01,373 INFO L130 PetriNetUnfolder]: 5/256 cut-off events. [2022-11-16 12:36:01,381 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-16 12:36:01,386 INFO L83 FinitePrefix]: Finished finitePrefix Result has 294 conditions, 256 events. 5/256 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 466 event pairs, 0 based on Foata normal form. 0/229 useless extension candidates. Maximal degree in co-relation 243. Up to 15 conditions per place. [2022-11-16 12:36:01,388 INFO L137 encePairwiseOnDemand]: 218/224 looper letters, 27 selfloop transitions, 4 changer transitions 0/219 dead transitions. [2022-11-16 12:36:01,388 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 214 places, 219 transitions, 506 flow [2022-11-16 12:36:01,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 12:36:01,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-11-16 12:36:01,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 793 transitions. [2022-11-16 12:36:01,396 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8850446428571429 [2022-11-16 12:36:01,396 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 793 transitions. [2022-11-16 12:36:01,396 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 793 transitions. [2022-11-16 12:36:01,397 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:36:01,397 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 793 transitions. [2022-11-16 12:36:01,400 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 198.25) internal successors, (793), 4 states have internal predecessors, (793), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:36:01,405 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 224.0) internal successors, (1120), 5 states have internal predecessors, (1120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:36:01,406 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 224.0) internal successors, (1120), 5 states have internal predecessors, (1120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:36:01,406 INFO L175 Difference]: Start difference. First operand has 212 places, 211 transitions, 428 flow. Second operand 4 states and 793 transitions. [2022-11-16 12:36:01,406 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 214 places, 219 transitions, 506 flow [2022-11-16 12:36:01,412 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 212 places, 219 transitions, 503 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-16 12:36:01,423 INFO L231 Difference]: Finished difference. Result has 215 places, 212 transitions, 449 flow [2022-11-16 12:36:01,424 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=224, PETRI_DIFFERENCE_MINUEND_FLOW=423, PETRI_DIFFERENCE_MINUEND_PLACES=209, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=210, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=206, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=449, PETRI_PLACES=215, PETRI_TRANSITIONS=212} [2022-11-16 12:36:01,425 INFO L288 CegarLoopForPetriNet]: 214 programPoint places, 1 predicate places. [2022-11-16 12:36:01,425 INFO L495 AbstractCegarLoop]: Abstraction has has 215 places, 212 transitions, 449 flow [2022-11-16 12:36:01,426 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 191.75) internal successors, (767), 4 states have internal predecessors, (767), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:36:01,426 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:36:01,427 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:36:01,427 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-16 12:36:01,428 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2022-11-16 12:36:01,430 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:36:01,431 INFO L85 PathProgramCache]: Analyzing trace with hash -2146168375, now seen corresponding path program 1 times [2022-11-16 12:36:01,431 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:36:01,431 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [8065669] [2022-11-16 12:36:01,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:36:01,433 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:36:01,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:36:01,688 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:36:01,688 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:36:01,688 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [8065669] [2022-11-16 12:36:01,689 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [8065669] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:36:01,689 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:36:01,689 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 12:36:01,689 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [608469263] [2022-11-16 12:36:01,690 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:36:01,690 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-16 12:36:01,690 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:36:01,691 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-16 12:36:01,691 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-16 12:36:01,693 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 189 out of 224 [2022-11-16 12:36:01,695 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 215 places, 212 transitions, 449 flow. Second operand has 5 states, 5 states have (on average 191.0) internal successors, (955), 5 states have internal predecessors, (955), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:36:01,695 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:36:01,695 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 189 of 224 [2022-11-16 12:36:01,695 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:36:01,808 INFO L130 PetriNetUnfolder]: 3/205 cut-off events. [2022-11-16 12:36:01,809 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-11-16 12:36:01,810 INFO L83 FinitePrefix]: Finished finitePrefix Result has 237 conditions, 205 events. 3/205 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 221 event pairs, 0 based on Foata normal form. 1/187 useless extension candidates. Maximal degree in co-relation 184. Up to 11 conditions per place. [2022-11-16 12:36:01,811 INFO L137 encePairwiseOnDemand]: 219/224 looper letters, 14 selfloop transitions, 4 changer transitions 0/205 dead transitions. [2022-11-16 12:36:01,811 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 216 places, 205 transitions, 461 flow [2022-11-16 12:36:01,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 12:36:01,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-11-16 12:36:01,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 964 transitions. [2022-11-16 12:36:01,815 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8607142857142858 [2022-11-16 12:36:01,815 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 964 transitions. [2022-11-16 12:36:01,816 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 964 transitions. [2022-11-16 12:36:01,817 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:36:01,817 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 964 transitions. [2022-11-16 12:36:01,820 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 192.8) internal successors, (964), 5 states have internal predecessors, (964), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:36:01,824 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 224.0) internal successors, (1344), 6 states have internal predecessors, (1344), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:36:01,825 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 224.0) internal successors, (1344), 6 states have internal predecessors, (1344), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:36:01,825 INFO L175 Difference]: Start difference. First operand has 215 places, 212 transitions, 449 flow. Second operand 5 states and 964 transitions. [2022-11-16 12:36:01,825 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 216 places, 205 transitions, 461 flow [2022-11-16 12:36:01,829 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 211 places, 205 transitions, 450 flow, removed 2 selfloop flow, removed 5 redundant places. [2022-11-16 12:36:01,832 INFO L231 Difference]: Finished difference. Result has 211 places, 205 transitions, 422 flow [2022-11-16 12:36:01,833 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=224, PETRI_DIFFERENCE_MINUEND_FLOW=414, PETRI_DIFFERENCE_MINUEND_PLACES=207, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=205, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=201, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=422, PETRI_PLACES=211, PETRI_TRANSITIONS=205} [2022-11-16 12:36:01,836 INFO L288 CegarLoopForPetriNet]: 214 programPoint places, -3 predicate places. [2022-11-16 12:36:01,836 INFO L495 AbstractCegarLoop]: Abstraction has has 211 places, 205 transitions, 422 flow [2022-11-16 12:36:01,838 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 191.0) internal successors, (955), 5 states have internal predecessors, (955), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:36:01,838 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:36:01,838 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:36:01,839 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-16 12:36:01,839 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2022-11-16 12:36:01,842 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:36:01,842 INFO L85 PathProgramCache]: Analyzing trace with hash -384400290, now seen corresponding path program 1 times [2022-11-16 12:36:01,842 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:36:01,843 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1478115718] [2022-11-16 12:36:01,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:36:01,843 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:36:01,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:36:02,034 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:36:02,035 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:36:02,035 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1478115718] [2022-11-16 12:36:02,036 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1478115718] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:36:02,036 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:36:02,036 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 12:36:02,036 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [313033624] [2022-11-16 12:36:02,036 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:36:02,037 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-16 12:36:02,037 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:36:02,038 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-16 12:36:02,038 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-16 12:36:02,040 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 186 out of 224 [2022-11-16 12:36:02,043 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 211 places, 205 transitions, 422 flow. Second operand has 5 states, 5 states have (on average 188.6) internal successors, (943), 5 states have internal predecessors, (943), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:36:02,043 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:36:02,043 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 186 of 224 [2022-11-16 12:36:02,043 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:36:02,155 INFO L130 PetriNetUnfolder]: 3/203 cut-off events. [2022-11-16 12:36:02,156 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-16 12:36:02,157 INFO L83 FinitePrefix]: Finished finitePrefix Result has 233 conditions, 203 events. 3/203 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 212 event pairs, 0 based on Foata normal form. 0/185 useless extension candidates. Maximal degree in co-relation 182. Up to 12 conditions per place. [2022-11-16 12:36:02,158 INFO L137 encePairwiseOnDemand]: 219/224 looper letters, 15 selfloop transitions, 4 changer transitions 0/203 dead transitions. [2022-11-16 12:36:02,158 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 213 places, 203 transitions, 456 flow [2022-11-16 12:36:02,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 12:36:02,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-11-16 12:36:02,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 950 transitions. [2022-11-16 12:36:02,162 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8482142857142857 [2022-11-16 12:36:02,162 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 950 transitions. [2022-11-16 12:36:02,162 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 950 transitions. [2022-11-16 12:36:02,163 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:36:02,163 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 950 transitions. [2022-11-16 12:36:02,167 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 190.0) internal successors, (950), 5 states have internal predecessors, (950), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:36:02,170 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 224.0) internal successors, (1344), 6 states have internal predecessors, (1344), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:36:02,171 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 224.0) internal successors, (1344), 6 states have internal predecessors, (1344), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:36:02,172 INFO L175 Difference]: Start difference. First operand has 211 places, 205 transitions, 422 flow. Second operand 5 states and 950 transitions. [2022-11-16 12:36:02,172 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 213 places, 203 transitions, 456 flow [2022-11-16 12:36:02,174 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 209 places, 203 transitions, 448 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-11-16 12:36:02,177 INFO L231 Difference]: Finished difference. Result has 209 places, 203 transitions, 418 flow [2022-11-16 12:36:02,178 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=224, PETRI_DIFFERENCE_MINUEND_FLOW=410, PETRI_DIFFERENCE_MINUEND_PLACES=205, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=203, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=199, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=418, PETRI_PLACES=209, PETRI_TRANSITIONS=203} [2022-11-16 12:36:02,179 INFO L288 CegarLoopForPetriNet]: 214 programPoint places, -5 predicate places. [2022-11-16 12:36:02,179 INFO L495 AbstractCegarLoop]: Abstraction has has 209 places, 203 transitions, 418 flow [2022-11-16 12:36:02,180 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 188.6) internal successors, (943), 5 states have internal predecessors, (943), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:36:02,181 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:36:02,181 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:36:02,181 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-16 12:36:02,181 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2022-11-16 12:36:02,182 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:36:02,182 INFO L85 PathProgramCache]: Analyzing trace with hash 694609151, now seen corresponding path program 1 times [2022-11-16 12:36:02,182 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:36:02,183 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [82679312] [2022-11-16 12:36:02,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:36:02,183 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:36:02,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:36:02,413 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:36:02,413 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:36:02,413 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [82679312] [2022-11-16 12:36:02,414 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [82679312] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:36:02,414 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:36:02,414 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-16 12:36:02,414 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1487343165] [2022-11-16 12:36:02,414 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:36:02,415 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-16 12:36:02,415 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:36:02,416 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-16 12:36:02,416 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-11-16 12:36:02,419 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 180 out of 224 [2022-11-16 12:36:02,422 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 209 places, 203 transitions, 418 flow. Second operand has 8 states, 8 states have (on average 182.5) internal successors, (1460), 8 states have internal predecessors, (1460), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:36:02,422 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:36:02,422 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 180 of 224 [2022-11-16 12:36:02,422 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:36:02,594 INFO L130 PetriNetUnfolder]: 3/202 cut-off events. [2022-11-16 12:36:02,594 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-16 12:36:02,595 INFO L83 FinitePrefix]: Finished finitePrefix Result has 237 conditions, 202 events. 3/202 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 209 event pairs, 0 based on Foata normal form. 0/185 useless extension candidates. Maximal degree in co-relation 181. Up to 12 conditions per place. [2022-11-16 12:36:02,597 INFO L137 encePairwiseOnDemand]: 216/224 looper letters, 17 selfloop transitions, 7 changer transitions 0/202 dead transitions. [2022-11-16 12:36:02,597 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 216 places, 202 transitions, 464 flow [2022-11-16 12:36:02,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-16 12:36:02,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-11-16 12:36:02,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1645 transitions. [2022-11-16 12:36:02,602 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8159722222222222 [2022-11-16 12:36:02,602 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1645 transitions. [2022-11-16 12:36:02,603 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1645 transitions. [2022-11-16 12:36:02,604 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:36:02,604 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1645 transitions. [2022-11-16 12:36:02,609 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 182.77777777777777) internal successors, (1645), 9 states have internal predecessors, (1645), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:36:02,614 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 224.0) internal successors, (2240), 10 states have internal predecessors, (2240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:36:02,616 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 224.0) internal successors, (2240), 10 states have internal predecessors, (2240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:36:02,616 INFO L175 Difference]: Start difference. First operand has 209 places, 203 transitions, 418 flow. Second operand 9 states and 1645 transitions. [2022-11-16 12:36:02,616 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 216 places, 202 transitions, 464 flow [2022-11-16 12:36:02,618 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 212 places, 202 transitions, 456 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-11-16 12:36:02,622 INFO L231 Difference]: Finished difference. Result has 212 places, 202 transitions, 422 flow [2022-11-16 12:36:02,622 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=224, PETRI_DIFFERENCE_MINUEND_FLOW=408, PETRI_DIFFERENCE_MINUEND_PLACES=204, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=202, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=195, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=422, PETRI_PLACES=212, PETRI_TRANSITIONS=202} [2022-11-16 12:36:02,623 INFO L288 CegarLoopForPetriNet]: 214 programPoint places, -2 predicate places. [2022-11-16 12:36:02,623 INFO L495 AbstractCegarLoop]: Abstraction has has 212 places, 202 transitions, 422 flow [2022-11-16 12:36:02,624 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 182.5) internal successors, (1460), 8 states have internal predecessors, (1460), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:36:02,625 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:36:02,625 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:36:02,625 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-16 12:36:02,625 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2022-11-16 12:36:02,626 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:36:02,626 INFO L85 PathProgramCache]: Analyzing trace with hash 58047526, now seen corresponding path program 1 times [2022-11-16 12:36:02,626 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:36:02,627 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1942350496] [2022-11-16 12:36:02,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:36:02,627 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:36:02,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:36:02,874 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:36:02,874 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:36:02,874 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1942350496] [2022-11-16 12:36:02,874 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1942350496] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:36:02,875 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:36:02,875 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 12:36:02,875 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1556356038] [2022-11-16 12:36:02,875 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:36:02,876 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 12:36:02,876 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:36:02,876 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 12:36:02,877 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-16 12:36:02,881 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 186 out of 224 [2022-11-16 12:36:02,883 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 212 places, 202 transitions, 422 flow. Second operand has 6 states, 6 states have (on average 188.66666666666666) internal successors, (1132), 6 states have internal predecessors, (1132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:36:02,883 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:36:02,884 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 186 of 224 [2022-11-16 12:36:02,884 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:36:03,013 INFO L130 PetriNetUnfolder]: 3/201 cut-off events. [2022-11-16 12:36:03,013 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-16 12:36:03,014 INFO L83 FinitePrefix]: Finished finitePrefix Result has 233 conditions, 201 events. 3/201 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 207 event pairs, 0 based on Foata normal form. 0/185 useless extension candidates. Maximal degree in co-relation 176. Up to 10 conditions per place. [2022-11-16 12:36:03,015 INFO L137 encePairwiseOnDemand]: 219/224 looper letters, 14 selfloop transitions, 4 changer transitions 24/201 dead transitions. [2022-11-16 12:36:03,015 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 216 places, 201 transitions, 456 flow [2022-11-16 12:36:03,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 12:36:03,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-16 12:36:03,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1135 transitions. [2022-11-16 12:36:03,020 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8444940476190477 [2022-11-16 12:36:03,020 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1135 transitions. [2022-11-16 12:36:03,020 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1135 transitions. [2022-11-16 12:36:03,021 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:36:03,022 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1135 transitions. [2022-11-16 12:36:03,025 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 189.16666666666666) internal successors, (1135), 6 states have internal predecessors, (1135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:36:03,029 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 224.0) internal successors, (1568), 7 states have internal predecessors, (1568), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:36:03,032 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 224.0) internal successors, (1568), 7 states have internal predecessors, (1568), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:36:03,032 INFO L175 Difference]: Start difference. First operand has 212 places, 202 transitions, 422 flow. Second operand 6 states and 1135 transitions. [2022-11-16 12:36:03,033 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 216 places, 201 transitions, 456 flow [2022-11-16 12:36:03,035 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 209 places, 201 transitions, 443 flow, removed 0 selfloop flow, removed 7 redundant places. [2022-11-16 12:36:03,038 INFO L231 Difference]: Finished difference. Result has 209 places, 177 transitions, 367 flow [2022-11-16 12:36:03,039 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=224, PETRI_DIFFERENCE_MINUEND_FLOW=407, PETRI_DIFFERENCE_MINUEND_PLACES=204, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=201, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=197, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=367, PETRI_PLACES=209, PETRI_TRANSITIONS=177} [2022-11-16 12:36:03,042 INFO L288 CegarLoopForPetriNet]: 214 programPoint places, -5 predicate places. [2022-11-16 12:36:03,042 INFO L495 AbstractCegarLoop]: Abstraction has has 209 places, 177 transitions, 367 flow [2022-11-16 12:36:03,043 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 188.66666666666666) internal successors, (1132), 6 states have internal predecessors, (1132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:36:03,043 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:36:03,044 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:36:03,044 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-16 12:36:03,044 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2022-11-16 12:36:03,045 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:36:03,045 INFO L85 PathProgramCache]: Analyzing trace with hash -1264373355, now seen corresponding path program 1 times [2022-11-16 12:36:03,045 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:36:03,045 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1153545692] [2022-11-16 12:36:03,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:36:03,046 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:36:03,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:36:03,182 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:36:03,182 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:36:03,183 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1153545692] [2022-11-16 12:36:03,184 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1153545692] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:36:03,189 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:36:03,189 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 12:36:03,189 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [898460796] [2022-11-16 12:36:03,189 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:36:03,190 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 12:36:03,191 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:36:03,191 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 12:36:03,191 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-16 12:36:03,193 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 193 out of 224 [2022-11-16 12:36:03,194 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 209 places, 177 transitions, 367 flow. Second operand has 4 states, 4 states have (on average 194.5) internal successors, (778), 4 states have internal predecessors, (778), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:36:03,194 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:36:03,195 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 193 of 224 [2022-11-16 12:36:03,195 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:36:03,272 INFO L130 PetriNetUnfolder]: 2/175 cut-off events. [2022-11-16 12:36:03,272 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-16 12:36:03,273 INFO L83 FinitePrefix]: Finished finitePrefix Result has 204 conditions, 175 events. 2/175 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 160 event pairs, 0 based on Foata normal form. 0/168 useless extension candidates. Maximal degree in co-relation 152. Up to 14 conditions per place. [2022-11-16 12:36:03,274 INFO L137 encePairwiseOnDemand]: 220/224 looper letters, 15 selfloop transitions, 2 changer transitions 0/175 dead transitions. [2022-11-16 12:36:03,274 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 187 places, 175 transitions, 397 flow [2022-11-16 12:36:03,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 12:36:03,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-11-16 12:36:03,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 791 transitions. [2022-11-16 12:36:03,278 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8828125 [2022-11-16 12:36:03,278 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 791 transitions. [2022-11-16 12:36:03,278 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 791 transitions. [2022-11-16 12:36:03,279 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:36:03,279 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 791 transitions. [2022-11-16 12:36:03,282 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 197.75) internal successors, (791), 4 states have internal predecessors, (791), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:36:03,285 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 224.0) internal successors, (1120), 5 states have internal predecessors, (1120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:36:03,286 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 224.0) internal successors, (1120), 5 states have internal predecessors, (1120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:36:03,286 INFO L175 Difference]: Start difference. First operand has 209 places, 177 transitions, 367 flow. Second operand 4 states and 791 transitions. [2022-11-16 12:36:03,286 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 187 places, 175 transitions, 397 flow [2022-11-16 12:36:03,288 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 183 places, 175 transitions, 390 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-11-16 12:36:03,291 INFO L231 Difference]: Finished difference. Result has 183 places, 175 transitions, 360 flow [2022-11-16 12:36:03,292 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=224, PETRI_DIFFERENCE_MINUEND_FLOW=356, PETRI_DIFFERENCE_MINUEND_PLACES=180, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=175, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=173, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=360, PETRI_PLACES=183, PETRI_TRANSITIONS=175} [2022-11-16 12:36:03,292 INFO L288 CegarLoopForPetriNet]: 214 programPoint places, -31 predicate places. [2022-11-16 12:36:03,293 INFO L495 AbstractCegarLoop]: Abstraction has has 183 places, 175 transitions, 360 flow [2022-11-16 12:36:03,293 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 194.5) internal successors, (778), 4 states have internal predecessors, (778), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:36:03,293 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:36:03,294 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:36:03,294 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-16 12:36:03,294 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2022-11-16 12:36:03,295 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:36:03,295 INFO L85 PathProgramCache]: Analyzing trace with hash -540867751, now seen corresponding path program 1 times [2022-11-16 12:36:03,295 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:36:03,295 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2117956172] [2022-11-16 12:36:03,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:36:03,296 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:36:03,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:36:03,389 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:36:03,390 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:36:03,390 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2117956172] [2022-11-16 12:36:03,390 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2117956172] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:36:03,390 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:36:03,391 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 12:36:03,391 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [902429219] [2022-11-16 12:36:03,391 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:36:03,391 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 12:36:03,392 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:36:03,392 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 12:36:03,392 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-16 12:36:03,394 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 193 out of 224 [2022-11-16 12:36:03,395 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 183 places, 175 transitions, 360 flow. Second operand has 4 states, 4 states have (on average 194.75) internal successors, (779), 4 states have internal predecessors, (779), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:36:03,395 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:36:03,395 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 193 of 224 [2022-11-16 12:36:03,395 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:36:03,491 INFO L130 PetriNetUnfolder]: 2/173 cut-off events. [2022-11-16 12:36:03,491 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-11-16 12:36:03,492 INFO L83 FinitePrefix]: Finished finitePrefix Result has 199 conditions, 173 events. 2/173 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 149 event pairs, 0 based on Foata normal form. 0/168 useless extension candidates. Maximal degree in co-relation 148. Up to 12 conditions per place. [2022-11-16 12:36:03,493 INFO L137 encePairwiseOnDemand]: 220/224 looper letters, 13 selfloop transitions, 2 changer transitions 0/173 dead transitions. [2022-11-16 12:36:03,493 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 184 places, 173 transitions, 386 flow [2022-11-16 12:36:03,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 12:36:03,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-11-16 12:36:03,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 789 transitions. [2022-11-16 12:36:03,497 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8805803571428571 [2022-11-16 12:36:03,497 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 789 transitions. [2022-11-16 12:36:03,497 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 789 transitions. [2022-11-16 12:36:03,498 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:36:03,498 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 789 transitions. [2022-11-16 12:36:03,501 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 197.25) internal successors, (789), 4 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) [2022-11-16 12:36:03,504 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 224.0) internal successors, (1120), 5 states have internal predecessors, (1120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:36:03,505 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 224.0) internal successors, (1120), 5 states have internal predecessors, (1120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:36:03,505 INFO L175 Difference]: Start difference. First operand has 183 places, 175 transitions, 360 flow. Second operand 4 states and 789 transitions. [2022-11-16 12:36:03,506 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 184 places, 173 transitions, 386 flow [2022-11-16 12:36:03,507 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 182 places, 173 transitions, 383 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-16 12:36:03,511 INFO L231 Difference]: Finished difference. Result has 182 places, 173 transitions, 357 flow [2022-11-16 12:36:03,511 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=224, PETRI_DIFFERENCE_MINUEND_FLOW=353, PETRI_DIFFERENCE_MINUEND_PLACES=179, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=173, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=171, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=357, PETRI_PLACES=182, PETRI_TRANSITIONS=173} [2022-11-16 12:36:03,512 INFO L288 CegarLoopForPetriNet]: 214 programPoint places, -32 predicate places. [2022-11-16 12:36:03,512 INFO L495 AbstractCegarLoop]: Abstraction has has 182 places, 173 transitions, 357 flow [2022-11-16 12:36:03,513 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 194.75) internal successors, (779), 4 states have internal predecessors, (779), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:36:03,513 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:36:03,514 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:36:03,514 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-16 12:36:03,514 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting t_funErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2022-11-16 12:36:03,515 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:36:03,515 INFO L85 PathProgramCache]: Analyzing trace with hash -1937411836, now seen corresponding path program 1 times [2022-11-16 12:36:03,515 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:36:03,515 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [779878833] [2022-11-16 12:36:03,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:36:03,516 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:36:03,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:36:03,671 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:36:03,672 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:36:03,672 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [779878833] [2022-11-16 12:36:03,672 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [779878833] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:36:03,672 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:36:03,672 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 12:36:03,673 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1153460336] [2022-11-16 12:36:03,673 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:36:03,673 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-16 12:36:03,673 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:36:03,674 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-16 12:36:03,674 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-16 12:36:03,676 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 189 out of 224 [2022-11-16 12:36:03,677 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 182 places, 173 transitions, 357 flow. Second operand has 5 states, 5 states have (on average 191.0) internal successors, (955), 5 states have internal predecessors, (955), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:36:03,677 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:36:03,677 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 189 of 224 [2022-11-16 12:36:03,678 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:36:03,763 INFO L130 PetriNetUnfolder]: 1/172 cut-off events. [2022-11-16 12:36:03,763 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-11-16 12:36:03,764 INFO L83 FinitePrefix]: Finished finitePrefix Result has 202 conditions, 172 events. 1/172 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 140 event pairs, 0 based on Foata normal form. 0/168 useless extension candidates. Maximal degree in co-relation 151. Up to 11 conditions per place. [2022-11-16 12:36:03,764 INFO L137 encePairwiseOnDemand]: 219/224 looper letters, 14 selfloop transitions, 4 changer transitions 0/172 dead transitions. [2022-11-16 12:36:03,765 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 186 places, 172 transitions, 391 flow [2022-11-16 12:36:03,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 12:36:03,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-11-16 12:36:03,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 964 transitions. [2022-11-16 12:36:03,768 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8607142857142858 [2022-11-16 12:36:03,768 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 964 transitions. [2022-11-16 12:36:03,768 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 964 transitions. [2022-11-16 12:36:03,769 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:36:03,770 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 964 transitions. [2022-11-16 12:36:03,772 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 192.8) internal successors, (964), 5 states have internal predecessors, (964), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:36:03,775 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 224.0) internal successors, (1344), 6 states have internal predecessors, (1344), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:36:03,776 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 224.0) internal successors, (1344), 6 states have internal predecessors, (1344), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:36:03,776 INFO L175 Difference]: Start difference. First operand has 182 places, 173 transitions, 357 flow. Second operand 5 states and 964 transitions. [2022-11-16 12:36:03,776 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 186 places, 172 transitions, 391 flow [2022-11-16 12:36:03,778 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 184 places, 172 transitions, 388 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-16 12:36:03,781 INFO L231 Difference]: Finished difference. Result has 184 places, 172 transitions, 360 flow [2022-11-16 12:36:03,782 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=224, PETRI_DIFFERENCE_MINUEND_FLOW=352, PETRI_DIFFERENCE_MINUEND_PLACES=180, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=172, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=168, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=360, PETRI_PLACES=184, PETRI_TRANSITIONS=172} [2022-11-16 12:36:03,782 INFO L288 CegarLoopForPetriNet]: 214 programPoint places, -30 predicate places. [2022-11-16 12:36:03,783 INFO L495 AbstractCegarLoop]: Abstraction has has 184 places, 172 transitions, 360 flow [2022-11-16 12:36:03,783 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 191.0) internal successors, (955), 5 states have internal predecessors, (955), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:36:03,784 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:36:03,784 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:36:03,784 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-16 12:36:03,784 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting t_funErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2022-11-16 12:36:03,785 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:36:03,785 INFO L85 PathProgramCache]: Analyzing trace with hash -1891920501, now seen corresponding path program 1 times [2022-11-16 12:36:03,785 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:36:03,785 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1912514184] [2022-11-16 12:36:03,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:36:03,786 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:36:03,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:36:04,032 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:36:04,032 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:36:04,032 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1912514184] [2022-11-16 12:36:04,033 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1912514184] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:36:04,033 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:36:04,033 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-16 12:36:04,033 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [824063748] [2022-11-16 12:36:04,033 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:36:04,034 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-16 12:36:04,034 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:36:04,034 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-16 12:36:04,034 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-16 12:36:04,037 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 183 out of 224 [2022-11-16 12:36:04,038 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 184 places, 172 transitions, 360 flow. Second operand has 7 states, 7 states have (on average 185.42857142857142) internal successors, (1298), 7 states have internal predecessors, (1298), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:36:04,039 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:36:04,039 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 183 of 224 [2022-11-16 12:36:04,039 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:36:04,366 INFO L130 PetriNetUnfolder]: 20/541 cut-off events. [2022-11-16 12:36:04,366 INFO L131 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2022-11-16 12:36:04,368 INFO L83 FinitePrefix]: Finished finitePrefix Result has 664 conditions, 541 events. 20/541 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 2490 event pairs, 0 based on Foata normal form. 0/524 useless extension candidates. Maximal degree in co-relation 612. Up to 24 conditions per place. [2022-11-16 12:36:04,370 INFO L137 encePairwiseOnDemand]: 217/224 looper letters, 49 selfloop transitions, 13 changer transitions 0/211 dead transitions. [2022-11-16 12:36:04,370 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 194 places, 211 transitions, 582 flow [2022-11-16 12:36:04,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-16 12:36:04,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-11-16 12:36:04,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 2077 transitions. [2022-11-16 12:36:04,377 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8429383116883117 [2022-11-16 12:36:04,377 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 2077 transitions. [2022-11-16 12:36:04,377 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 2077 transitions. [2022-11-16 12:36:04,379 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:36:04,379 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 2077 transitions. [2022-11-16 12:36:04,385 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 188.8181818181818) internal successors, (2077), 11 states have internal predecessors, (2077), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:36:04,391 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 224.0) internal successors, (2688), 12 states have internal predecessors, (2688), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:36:04,392 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 224.0) internal successors, (2688), 12 states have internal predecessors, (2688), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:36:04,392 INFO L175 Difference]: Start difference. First operand has 184 places, 172 transitions, 360 flow. Second operand 11 states and 2077 transitions. [2022-11-16 12:36:04,393 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 194 places, 211 transitions, 582 flow [2022-11-16 12:36:04,395 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 190 places, 211 transitions, 558 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-11-16 12:36:04,398 INFO L231 Difference]: Finished difference. Result has 193 places, 183 transitions, 423 flow [2022-11-16 12:36:04,399 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=224, PETRI_DIFFERENCE_MINUEND_FLOW=352, PETRI_DIFFERENCE_MINUEND_PLACES=180, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=172, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=166, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=423, PETRI_PLACES=193, PETRI_TRANSITIONS=183} [2022-11-16 12:36:04,399 INFO L288 CegarLoopForPetriNet]: 214 programPoint places, -21 predicate places. [2022-11-16 12:36:04,400 INFO L495 AbstractCegarLoop]: Abstraction has has 193 places, 183 transitions, 423 flow [2022-11-16 12:36:04,400 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 185.42857142857142) internal successors, (1298), 7 states have internal predecessors, (1298), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:36:04,401 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:36:04,401 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:36:04,401 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-16 12:36:04,401 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting t_funErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2022-11-16 12:36:04,402 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:36:04,402 INFO L85 PathProgramCache]: Analyzing trace with hash 1480007232, now seen corresponding path program 1 times [2022-11-16 12:36:04,402 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:36:04,402 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [243861486] [2022-11-16 12:36:04,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:36:04,403 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:36:04,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:36:04,616 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:36:04,616 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:36:04,616 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [243861486] [2022-11-16 12:36:04,616 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [243861486] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:36:04,616 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:36:04,617 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-16 12:36:04,617 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1720073550] [2022-11-16 12:36:04,617 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:36:04,617 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-16 12:36:04,618 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:36:04,618 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-16 12:36:04,618 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-11-16 12:36:04,621 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 183 out of 224 [2022-11-16 12:36:04,623 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 193 places, 183 transitions, 423 flow. Second operand has 7 states, 7 states have (on average 185.57142857142858) internal successors, (1299), 7 states have internal predecessors, (1299), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:36:04,623 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:36:04,623 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 183 of 224 [2022-11-16 12:36:04,623 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:36:04,893 INFO L130 PetriNetUnfolder]: 19/538 cut-off events. [2022-11-16 12:36:04,894 INFO L131 PetriNetUnfolder]: For 40/40 co-relation queries the response was YES. [2022-11-16 12:36:04,896 INFO L83 FinitePrefix]: Finished finitePrefix Result has 694 conditions, 538 events. 19/538 cut-off events. For 40/40 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 2463 event pairs, 0 based on Foata normal form. 2/524 useless extension candidates. Maximal degree in co-relation 638. Up to 24 conditions per place. [2022-11-16 12:36:04,897 INFO L137 encePairwiseOnDemand]: 217/224 looper letters, 23 selfloop transitions, 2 changer transitions 36/210 dead transitions. [2022-11-16 12:36:04,897 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 203 places, 210 transitions, 603 flow [2022-11-16 12:36:04,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-16 12:36:04,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-11-16 12:36:04,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 2075 transitions. [2022-11-16 12:36:04,903 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8421266233766234 [2022-11-16 12:36:04,903 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 2075 transitions. [2022-11-16 12:36:04,903 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 2075 transitions. [2022-11-16 12:36:04,905 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:36:04,905 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 2075 transitions. [2022-11-16 12:36:04,937 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 188.63636363636363) internal successors, (2075), 11 states have internal predecessors, (2075), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:36:04,942 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 224.0) internal successors, (2688), 12 states have internal predecessors, (2688), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:36:04,943 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 224.0) internal successors, (2688), 12 states have internal predecessors, (2688), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:36:04,943 INFO L175 Difference]: Start difference. First operand has 193 places, 183 transitions, 423 flow. Second operand 11 states and 2075 transitions. [2022-11-16 12:36:04,944 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 203 places, 210 transitions, 603 flow [2022-11-16 12:36:04,946 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 203 places, 210 transitions, 603 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-16 12:36:04,948 INFO L231 Difference]: Finished difference. Result has 207 places, 172 transitions, 382 flow [2022-11-16 12:36:04,949 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=224, PETRI_DIFFERENCE_MINUEND_FLOW=423, PETRI_DIFFERENCE_MINUEND_PLACES=193, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=183, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=181, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=382, PETRI_PLACES=207, PETRI_TRANSITIONS=172} [2022-11-16 12:36:04,950 INFO L288 CegarLoopForPetriNet]: 214 programPoint places, -7 predicate places. [2022-11-16 12:36:04,950 INFO L495 AbstractCegarLoop]: Abstraction has has 207 places, 172 transitions, 382 flow [2022-11-16 12:36:04,951 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 185.57142857142858) internal successors, (1299), 7 states have internal predecessors, (1299), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:36:04,951 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:36:04,952 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:36:04,952 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-16 12:36:04,952 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting t_funErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2022-11-16 12:36:04,952 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:36:04,953 INFO L85 PathProgramCache]: Analyzing trace with hash 1067891195, now seen corresponding path program 1 times [2022-11-16 12:36:04,953 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:36:04,953 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1820997045] [2022-11-16 12:36:04,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:36:04,953 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:36:04,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:36:05,309 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:36:05,309 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:36:05,310 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1820997045] [2022-11-16 12:36:05,310 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1820997045] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:36:05,311 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:36:05,311 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-16 12:36:05,311 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1408127699] [2022-11-16 12:36:05,311 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:36:05,312 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 12:36:05,312 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:36:05,312 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 12:36:05,312 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-16 12:36:05,314 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 187 out of 224 [2022-11-16 12:36:05,316 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 207 places, 172 transitions, 382 flow. Second operand has 6 states, 6 states have (on average 190.16666666666666) internal successors, (1141), 6 states have internal predecessors, (1141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:36:05,316 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:36:05,317 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 187 of 224 [2022-11-16 12:36:05,317 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:36:05,486 INFO L130 PetriNetUnfolder]: 24/367 cut-off events. [2022-11-16 12:36:05,486 INFO L131 PetriNetUnfolder]: For 8/8 co-relation queries the response was YES. [2022-11-16 12:36:05,487 INFO L83 FinitePrefix]: Finished finitePrefix Result has 489 conditions, 367 events. 24/367 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 1023 event pairs, 10 based on Foata normal form. 5/362 useless extension candidates. Maximal degree in co-relation 475. Up to 47 conditions per place. [2022-11-16 12:36:05,489 INFO L137 encePairwiseOnDemand]: 215/224 looper letters, 22 selfloop transitions, 9 changer transitions 1/179 dead transitions. [2022-11-16 12:36:05,489 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 195 places, 179 transitions, 460 flow [2022-11-16 12:36:05,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 12:36:05,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-11-16 12:36:05,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 970 transitions. [2022-11-16 12:36:05,493 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8660714285714286 [2022-11-16 12:36:05,493 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 970 transitions. [2022-11-16 12:36:05,493 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 970 transitions. [2022-11-16 12:36:05,494 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:36:05,494 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 970 transitions. [2022-11-16 12:36:05,496 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 194.0) internal successors, (970), 5 states have internal predecessors, (970), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:36:05,499 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 224.0) internal successors, (1344), 6 states have internal predecessors, (1344), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:36:05,500 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 224.0) internal successors, (1344), 6 states have internal predecessors, (1344), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:36:05,500 INFO L175 Difference]: Start difference. First operand has 207 places, 172 transitions, 382 flow. Second operand 5 states and 970 transitions. [2022-11-16 12:36:05,500 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 195 places, 179 transitions, 460 flow [2022-11-16 12:36:05,502 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 185 places, 179 transitions, 434 flow, removed 9 selfloop flow, removed 10 redundant places. [2022-11-16 12:36:05,505 INFO L231 Difference]: Finished difference. Result has 186 places, 174 transitions, 389 flow [2022-11-16 12:36:05,505 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=224, PETRI_DIFFERENCE_MINUEND_FLOW=356, PETRI_DIFFERENCE_MINUEND_PLACES=181, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=172, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=163, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=389, PETRI_PLACES=186, PETRI_TRANSITIONS=174} [2022-11-16 12:36:05,507 INFO L288 CegarLoopForPetriNet]: 214 programPoint places, -28 predicate places. [2022-11-16 12:36:05,508 INFO L495 AbstractCegarLoop]: Abstraction has has 186 places, 174 transitions, 389 flow [2022-11-16 12:36:05,508 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 190.16666666666666) internal successors, (1141), 6 states have internal predecessors, (1141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:36:05,508 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:36:05,509 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:36:05,509 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-16 12:36:05,509 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting t_funErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2022-11-16 12:36:05,509 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:36:05,510 INFO L85 PathProgramCache]: Analyzing trace with hash 1934993252, now seen corresponding path program 1 times [2022-11-16 12:36:05,510 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:36:05,510 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1503157000] [2022-11-16 12:36:05,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:36:05,510 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:36:05,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:36:06,030 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:36:06,030 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:36:06,030 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1503157000] [2022-11-16 12:36:06,030 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1503157000] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:36:06,030 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:36:06,031 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-16 12:36:06,031 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [645605365] [2022-11-16 12:36:06,031 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:36:06,032 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 12:36:06,032 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:36:06,032 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 12:36:06,032 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-16 12:36:06,034 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 187 out of 224 [2022-11-16 12:36:06,036 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 186 places, 174 transitions, 389 flow. Second operand has 6 states, 6 states have (on average 190.33333333333334) internal successors, (1142), 6 states have internal predecessors, (1142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:36:06,036 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:36:06,036 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 187 of 224 [2022-11-16 12:36:06,036 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:36:06,209 INFO L130 PetriNetUnfolder]: 21/360 cut-off events. [2022-11-16 12:36:06,209 INFO L131 PetriNetUnfolder]: For 32/32 co-relation queries the response was YES. [2022-11-16 12:36:06,210 INFO L83 FinitePrefix]: Finished finitePrefix Result has 490 conditions, 360 events. 21/360 cut-off events. For 32/32 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 953 event pairs, 7 based on Foata normal form. 2/351 useless extension candidates. Maximal degree in co-relation 423. Up to 38 conditions per place. [2022-11-16 12:36:06,211 INFO L137 encePairwiseOnDemand]: 217/224 looper letters, 24 selfloop transitions, 9 changer transitions 0/180 dead transitions. [2022-11-16 12:36:06,211 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 190 places, 180 transitions, 475 flow [2022-11-16 12:36:06,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 12:36:06,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-11-16 12:36:06,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 966 transitions. [2022-11-16 12:36:06,215 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8625 [2022-11-16 12:36:06,215 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 966 transitions. [2022-11-16 12:36:06,215 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 966 transitions. [2022-11-16 12:36:06,216 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:36:06,216 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 966 transitions. [2022-11-16 12:36:06,218 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 193.2) internal successors, (966), 5 states have internal predecessors, (966), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:36:06,221 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 224.0) internal successors, (1344), 6 states have internal predecessors, (1344), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:36:06,222 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 224.0) internal successors, (1344), 6 states have internal predecessors, (1344), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:36:06,222 INFO L175 Difference]: Start difference. First operand has 186 places, 174 transitions, 389 flow. Second operand 5 states and 966 transitions. [2022-11-16 12:36:06,222 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 190 places, 180 transitions, 475 flow [2022-11-16 12:36:06,240 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 188 places, 180 transitions, 472 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-16 12:36:06,243 INFO L231 Difference]: Finished difference. Result has 189 places, 177 transitions, 428 flow [2022-11-16 12:36:06,244 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=224, PETRI_DIFFERENCE_MINUEND_FLOW=386, PETRI_DIFFERENCE_MINUEND_PLACES=184, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=174, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=165, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=428, PETRI_PLACES=189, PETRI_TRANSITIONS=177} [2022-11-16 12:36:06,245 INFO L288 CegarLoopForPetriNet]: 214 programPoint places, -25 predicate places. [2022-11-16 12:36:06,245 INFO L495 AbstractCegarLoop]: Abstraction has has 189 places, 177 transitions, 428 flow [2022-11-16 12:36:06,246 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 190.33333333333334) internal successors, (1142), 6 states have internal predecessors, (1142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:36:06,246 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:36:06,246 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:36:06,246 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-16 12:36:06,246 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting t_funErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2022-11-16 12:36:06,247 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:36:06,247 INFO L85 PathProgramCache]: Analyzing trace with hash -1868475625, now seen corresponding path program 1 times [2022-11-16 12:36:06,247 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:36:06,248 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1661313807] [2022-11-16 12:36:06,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:36:06,248 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:36:06,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:36:06,537 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:36:06,537 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:36:06,538 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1661313807] [2022-11-16 12:36:06,538 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1661313807] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:36:06,538 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:36:06,538 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 12:36:06,538 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [453524465] [2022-11-16 12:36:06,539 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:36:06,539 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 12:36:06,539 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:36:06,540 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 12:36:06,540 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-11-16 12:36:06,542 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 180 out of 224 [2022-11-16 12:36:06,544 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 189 places, 177 transitions, 428 flow. Second operand has 6 states, 6 states have (on average 183.33333333333334) internal successors, (1100), 6 states have internal predecessors, (1100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:36:06,544 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:36:06,544 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 180 of 224 [2022-11-16 12:36:06,544 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:36:06,692 INFO L130 PetriNetUnfolder]: 6/254 cut-off events. [2022-11-16 12:36:06,692 INFO L131 PetriNetUnfolder]: For 15/15 co-relation queries the response was YES. [2022-11-16 12:36:06,693 INFO L83 FinitePrefix]: Finished finitePrefix Result has 347 conditions, 254 events. 6/254 cut-off events. For 15/15 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 437 event pairs, 1 based on Foata normal form. 0/249 useless extension candidates. Maximal degree in co-relation 290. Up to 14 conditions per place. [2022-11-16 12:36:06,694 INFO L137 encePairwiseOnDemand]: 219/224 looper letters, 20 selfloop transitions, 4 changer transitions 2/176 dead transitions. [2022-11-16 12:36:06,694 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 193 places, 176 transitions, 474 flow [2022-11-16 12:36:06,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 12:36:06,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-16 12:36:06,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1105 transitions. [2022-11-16 12:36:06,698 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8221726190476191 [2022-11-16 12:36:06,698 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1105 transitions. [2022-11-16 12:36:06,698 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1105 transitions. [2022-11-16 12:36:06,699 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:36:06,699 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1105 transitions. [2022-11-16 12:36:06,702 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 184.16666666666666) internal successors, (1105), 6 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) [2022-11-16 12:36:06,705 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 224.0) internal successors, (1568), 7 states have internal predecessors, (1568), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:36:06,706 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 224.0) internal successors, (1568), 7 states have internal predecessors, (1568), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:36:06,706 INFO L175 Difference]: Start difference. First operand has 189 places, 177 transitions, 428 flow. Second operand 6 states and 1105 transitions. [2022-11-16 12:36:06,706 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 193 places, 176 transitions, 474 flow [2022-11-16 12:36:06,709 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 191 places, 176 transitions, 471 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-16 12:36:06,712 INFO L231 Difference]: Finished difference. Result has 191 places, 174 transitions, 427 flow [2022-11-16 12:36:06,712 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=224, PETRI_DIFFERENCE_MINUEND_FLOW=423, PETRI_DIFFERENCE_MINUEND_PLACES=186, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=176, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=172, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=427, PETRI_PLACES=191, PETRI_TRANSITIONS=174} [2022-11-16 12:36:06,713 INFO L288 CegarLoopForPetriNet]: 214 programPoint places, -23 predicate places. [2022-11-16 12:36:06,713 INFO L495 AbstractCegarLoop]: Abstraction has has 191 places, 174 transitions, 427 flow [2022-11-16 12:36:06,714 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 183.33333333333334) internal successors, (1100), 6 states have internal predecessors, (1100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:36:06,714 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:36:06,714 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:36:06,714 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-16 12:36:06,715 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting t_funErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2022-11-16 12:36:06,715 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:36:06,715 INFO L85 PathProgramCache]: Analyzing trace with hash -1740038166, now seen corresponding path program 1 times [2022-11-16 12:36:06,715 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:36:06,716 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [773762085] [2022-11-16 12:36:06,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:36:06,716 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:36:06,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:36:07,042 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:36:07,042 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:36:07,042 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [773762085] [2022-11-16 12:36:07,042 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [773762085] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:36:07,042 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:36:07,043 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-16 12:36:07,043 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1667695282] [2022-11-16 12:36:07,043 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:36:07,044 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-16 12:36:07,044 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:36:07,044 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-16 12:36:07,044 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2022-11-16 12:36:07,047 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 173 out of 224 [2022-11-16 12:36:07,049 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 191 places, 174 transitions, 427 flow. Second operand has 9 states, 9 states have (on average 176.0) internal successors, (1584), 9 states have internal predecessors, (1584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:36:07,049 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:36:07,049 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 173 of 224 [2022-11-16 12:36:07,050 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:36:07,235 INFO L130 PetriNetUnfolder]: 12/290 cut-off events. [2022-11-16 12:36:07,236 INFO L131 PetriNetUnfolder]: For 21/21 co-relation queries the response was YES. [2022-11-16 12:36:07,236 INFO L83 FinitePrefix]: Finished finitePrefix Result has 412 conditions, 290 events. 12/290 cut-off events. For 21/21 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 590 event pairs, 7 based on Foata normal form. 1/284 useless extension candidates. Maximal degree in co-relation 383. Up to 19 conditions per place. [2022-11-16 12:36:07,237 INFO L137 encePairwiseOnDemand]: 216/224 looper letters, 0 selfloop transitions, 0 changer transitions 173/173 dead transitions. [2022-11-16 12:36:07,237 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 196 places, 173 transitions, 483 flow [2022-11-16 12:36:07,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-16 12:36:07,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-11-16 12:36:07,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1587 transitions. [2022-11-16 12:36:07,242 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7872023809523809 [2022-11-16 12:36:07,242 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1587 transitions. [2022-11-16 12:36:07,242 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1587 transitions. [2022-11-16 12:36:07,243 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:36:07,243 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1587 transitions. [2022-11-16 12:36:07,247 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 176.33333333333334) internal successors, (1587), 9 states have internal predecessors, (1587), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:36:07,251 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 224.0) internal successors, (2240), 10 states have internal predecessors, (2240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:36:07,252 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 224.0) internal successors, (2240), 10 states have internal predecessors, (2240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:36:07,253 INFO L175 Difference]: Start difference. First operand has 191 places, 174 transitions, 427 flow. Second operand 9 states and 1587 transitions. [2022-11-16 12:36:07,253 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 196 places, 173 transitions, 483 flow [2022-11-16 12:36:07,256 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 192 places, 173 transitions, 476 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-11-16 12:36:07,257 INFO L231 Difference]: Finished difference. Result has 192 places, 0 transitions, 0 flow [2022-11-16 12:36:07,258 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=224, PETRI_DIFFERENCE_MINUEND_FLOW=418, PETRI_DIFFERENCE_MINUEND_PLACES=184, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=173, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=173, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=0, PETRI_PLACES=192, PETRI_TRANSITIONS=0} [2022-11-16 12:36:07,258 INFO L288 CegarLoopForPetriNet]: 214 programPoint places, -22 predicate places. [2022-11-16 12:36:07,258 INFO L495 AbstractCegarLoop]: Abstraction has has 192 places, 0 transitions, 0 flow [2022-11-16 12:36:07,259 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 176.0) internal successors, (1584), 9 states have internal predecessors, (1584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:36:07,262 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 19 remaining) [2022-11-16 12:36:07,263 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 19 remaining) [2022-11-16 12:36:07,263 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 19 remaining) [2022-11-16 12:36:07,263 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 19 remaining) [2022-11-16 12:36:07,263 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 19 remaining) [2022-11-16 12:36:07,264 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 19 remaining) [2022-11-16 12:36:07,264 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (12 of 19 remaining) [2022-11-16 12:36:07,264 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 19 remaining) [2022-11-16 12:36:07,264 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 19 remaining) [2022-11-16 12:36:07,264 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 19 remaining) [2022-11-16 12:36:07,265 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 19 remaining) [2022-11-16 12:36:07,265 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 19 remaining) [2022-11-16 12:36:07,265 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 19 remaining) [2022-11-16 12:36:07,265 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 19 remaining) [2022-11-16 12:36:07,265 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 19 remaining) [2022-11-16 12:36:07,266 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 19 remaining) [2022-11-16 12:36:07,266 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 19 remaining) [2022-11-16 12:36:07,266 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 19 remaining) [2022-11-16 12:36:07,266 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 19 remaining) [2022-11-16 12:36:07,266 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-16 12:36:07,267 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:36:07,273 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-16 12:36:07,273 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-16 12:36:07,278 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.11 12:36:07 BasicIcfg [2022-11-16 12:36:07,278 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-16 12:36:07,279 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-16 12:36:07,279 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-16 12:36:07,279 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-16 12:36:07,280 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:35:59" (3/4) ... [2022-11-16 12:36:07,282 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-16 12:36:07,289 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2022-11-16 12:36:07,294 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2022-11-16 12:36:07,294 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2022-11-16 12:36:07,294 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-16 12:36:07,295 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-16 12:36:07,345 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95c8bcb6-3523-4df2-9ddd-44b7e8cc0edf/bin/uautomizer-tPACEb0tL8/witness.graphml [2022-11-16 12:36:07,345 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-16 12:36:07,346 INFO L158 Benchmark]: Toolchain (without parser) took 10094.38ms. Allocated memory was 115.3MB in the beginning and 243.3MB in the end (delta: 127.9MB). Free memory was 72.7MB in the beginning and 164.9MB in the end (delta: -92.2MB). Peak memory consumption was 35.5MB. Max. memory is 16.1GB. [2022-11-16 12:36:07,347 INFO L158 Benchmark]: CDTParser took 0.35ms. Allocated memory is still 115.3MB. Free memory is still 90.3MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 12:36:07,347 INFO L158 Benchmark]: CACSL2BoogieTranslator took 880.44ms. Allocated memory is still 115.3MB. Free memory was 72.5MB in the beginning and 78.6MB in the end (delta: -6.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-16 12:36:07,348 INFO L158 Benchmark]: Boogie Procedure Inliner took 97.31ms. Allocated memory is still 115.3MB. Free memory was 78.6MB in the beginning and 76.3MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-16 12:36:07,348 INFO L158 Benchmark]: Boogie Preprocessor took 64.22ms. Allocated memory is still 115.3MB. Free memory was 76.3MB in the beginning and 74.4MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-16 12:36:07,348 INFO L158 Benchmark]: RCFGBuilder took 931.26ms. Allocated memory is still 115.3MB. Free memory was 74.4MB in the beginning and 54.5MB in the end (delta: 19.9MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2022-11-16 12:36:07,349 INFO L158 Benchmark]: TraceAbstraction took 8044.29ms. Allocated memory was 115.3MB in the beginning and 243.3MB in the end (delta: 127.9MB). Free memory was 54.1MB in the beginning and 168.0MB in the end (delta: -113.9MB). Peak memory consumption was 16.2MB. Max. memory is 16.1GB. [2022-11-16 12:36:07,349 INFO L158 Benchmark]: Witness Printer took 66.74ms. Allocated memory is still 243.3MB. Free memory was 168.0MB in the beginning and 164.9MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-16 12:36:07,351 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35ms. Allocated memory is still 115.3MB. Free memory is still 90.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 880.44ms. Allocated memory is still 115.3MB. Free memory was 72.5MB in the beginning and 78.6MB in the end (delta: -6.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 97.31ms. Allocated memory is still 115.3MB. Free memory was 78.6MB in the beginning and 76.3MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 64.22ms. Allocated memory is still 115.3MB. Free memory was 76.3MB in the beginning and 74.4MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 931.26ms. Allocated memory is still 115.3MB. Free memory was 74.4MB in the beginning and 54.5MB in the end (delta: 19.9MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * TraceAbstraction took 8044.29ms. Allocated memory was 115.3MB in the beginning and 243.3MB in the end (delta: 127.9MB). Free memory was 54.1MB in the beginning and 168.0MB in the end (delta: -113.9MB). Peak memory consumption was 16.2MB. Max. memory is 16.1GB. * Witness Printer took 66.74ms. Allocated memory is still 243.3MB. Free memory was 168.0MB in the beginning and 164.9MB 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: 752]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 752]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 753]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 753]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 754]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 754]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 752]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 752]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 753]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 753]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 754]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 754]: 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, 309 locations, 19 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: 7.8s, OverallIterations: 15, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 3.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.3s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 657 SdHoareTripleChecker+Valid, 0.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 657 mSDsluCounter, 324 SdHoareTripleChecker+Invalid, 0.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 210 mSDsCounter, 26 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 635 IncrementalHoareTripleChecker+Invalid, 661 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 26 mSolverCounterUnsat, 114 mSDtfsCounter, 635 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 120 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 98 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=449occurred in iteration=2, InterpolantAutomatonStates: 93, 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, 0.3s SatisfiabilityAnalysisTime, 3.4s InterpolantComputationTime, 1490 NumberOfCodeBlocks, 1490 NumberOfCodeBlocksAsserted, 15 NumberOfCheckSat, 1475 ConstructedInterpolants, 0 QuantifiedInterpolants, 3914 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 15 InterpolantComputations, 15 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 12 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-11-16 12:36:07,387 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95c8bcb6-3523-4df2-9ddd-44b7e8cc0edf/bin/uautomizer-tPACEb0tL8/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