./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/goblint-regression/04-mutex_04-munge_nr.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version b5237d83 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81739b28-5bb1-46c5-bcf3-a3260fd5e0a6/bin/uautomizer-vX5HgA9Q3a/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81739b28-5bb1-46c5-bcf3-a3260fd5e0a6/bin/uautomizer-vX5HgA9Q3a/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81739b28-5bb1-46c5-bcf3-a3260fd5e0a6/bin/uautomizer-vX5HgA9Q3a/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81739b28-5bb1-46c5-bcf3-a3260fd5e0a6/bin/uautomizer-vX5HgA9Q3a/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/04-mutex_04-munge_nr.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81739b28-5bb1-46c5-bcf3-a3260fd5e0a6/bin/uautomizer-vX5HgA9Q3a/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81739b28-5bb1-46c5-bcf3-a3260fd5e0a6/bin/uautomizer-vX5HgA9Q3a --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 09d5acb2f81ee0994352651dad5f891cf0af6948836360f3240d2ea1a246e8a6 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-b5237d8 [2022-11-21 17:28:02,615 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-21 17:28:02,618 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-21 17:28:02,661 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-21 17:28:02,662 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-21 17:28:02,666 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-21 17:28:02,668 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-21 17:28:02,671 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-21 17:28:02,673 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-21 17:28:02,678 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-21 17:28:02,680 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-21 17:28:02,683 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-21 17:28:02,683 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-21 17:28:02,686 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-21 17:28:02,688 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-21 17:28:02,690 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-21 17:28:02,692 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-21 17:28:02,693 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-21 17:28:02,694 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-21 17:28:02,701 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-21 17:28:02,702 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-21 17:28:02,705 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-21 17:28:02,706 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-21 17:28:02,707 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-21 17:28:02,715 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-21 17:28:02,716 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-21 17:28:02,716 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-21 17:28:02,719 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-21 17:28:02,719 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-21 17:28:02,720 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-21 17:28:02,721 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-21 17:28:02,721 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-21 17:28:02,723 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-21 17:28:02,724 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-21 17:28:02,727 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-21 17:28:02,727 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-21 17:28:02,728 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-21 17:28:02,728 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-21 17:28:02,729 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-21 17:28:02,729 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-21 17:28:02,730 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-21 17:28:02,731 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81739b28-5bb1-46c5-bcf3-a3260fd5e0a6/bin/uautomizer-vX5HgA9Q3a/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-11-21 17:28:02,762 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-21 17:28:02,765 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-21 17:28:02,766 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-21 17:28:02,766 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-21 17:28:02,772 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-21 17:28:02,773 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-21 17:28:02,774 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-21 17:28:02,775 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-21 17:28:02,775 INFO L138 SettingsManager]: * Use SBE=true [2022-11-21 17:28:02,775 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-21 17:28:02,776 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-21 17:28:02,777 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-21 17:28:02,777 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-21 17:28:02,777 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-21 17:28:02,778 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-21 17:28:02,778 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-21 17:28:02,778 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-21 17:28:02,778 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-21 17:28:02,779 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-21 17:28:02,780 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-21 17:28:02,781 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-21 17:28:02,786 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-21 17:28:02,786 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-21 17:28:02,787 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-21 17:28:02,787 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-21 17:28:02,787 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-21 17:28:02,787 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 17:28:02,788 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-21 17:28:02,788 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-21 17:28:02,788 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-21 17:28:02,788 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-21 17:28:02,789 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-21 17:28:02,789 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-21 17:28:02,791 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-21 17:28:02,792 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-21 17:28:02,792 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_81739b28-5bb1-46c5-bcf3-a3260fd5e0a6/bin/uautomizer-vX5HgA9Q3a/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81739b28-5bb1-46c5-bcf3-a3260fd5e0a6/bin/uautomizer-vX5HgA9Q3a Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 09d5acb2f81ee0994352651dad5f891cf0af6948836360f3240d2ea1a246e8a6 [2022-11-21 17:28:03,057 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-21 17:28:03,079 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-21 17:28:03,082 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-21 17:28:03,084 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-21 17:28:03,087 INFO L275 PluginConnector]: CDTParser initialized [2022-11-21 17:28:03,088 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81739b28-5bb1-46c5-bcf3-a3260fd5e0a6/bin/uautomizer-vX5HgA9Q3a/../../sv-benchmarks/c/goblint-regression/04-mutex_04-munge_nr.i [2022-11-21 17:28:06,116 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-21 17:28:06,430 INFO L351 CDTParser]: Found 1 translation units. [2022-11-21 17:28:06,430 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81739b28-5bb1-46c5-bcf3-a3260fd5e0a6/sv-benchmarks/c/goblint-regression/04-mutex_04-munge_nr.i [2022-11-21 17:28:06,453 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81739b28-5bb1-46c5-bcf3-a3260fd5e0a6/bin/uautomizer-vX5HgA9Q3a/data/5fa849abf/a2581007956b48ffabb8868288570990/FLAGfdeca18f8 [2022-11-21 17:28:06,468 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81739b28-5bb1-46c5-bcf3-a3260fd5e0a6/bin/uautomizer-vX5HgA9Q3a/data/5fa849abf/a2581007956b48ffabb8868288570990 [2022-11-21 17:28:06,470 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-21 17:28:06,472 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-21 17:28:06,473 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-21 17:28:06,473 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-21 17:28:06,476 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-21 17:28:06,477 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 05:28:06" (1/1) ... [2022-11-21 17:28:06,478 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6f3ecfbd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:28:06, skipping insertion in model container [2022-11-21 17:28:06,478 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 05:28:06" (1/1) ... [2022-11-21 17:28:06,484 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-21 17:28:06,553 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-21 17:28:07,052 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 17:28:07,076 INFO L203 MainTranslator]: Completed pre-run [2022-11-21 17:28:07,143 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 17:28:07,207 INFO L208 MainTranslator]: Completed translation [2022-11-21 17:28:07,207 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:28:07 WrapperNode [2022-11-21 17:28:07,207 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-21 17:28:07,209 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-21 17:28:07,209 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-21 17:28:07,209 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-21 17:28:07,217 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:28:07" (1/1) ... [2022-11-21 17:28:07,233 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:28:07" (1/1) ... [2022-11-21 17:28:07,255 INFO L138 Inliner]: procedures = 263, calls = 17, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 48 [2022-11-21 17:28:07,255 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-21 17:28:07,256 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-21 17:28:07,256 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-21 17:28:07,256 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-21 17:28:07,283 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:28:07" (1/1) ... [2022-11-21 17:28:07,284 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:28:07" (1/1) ... [2022-11-21 17:28:07,287 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:28:07" (1/1) ... [2022-11-21 17:28:07,288 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:28:07" (1/1) ... [2022-11-21 17:28:07,292 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:28:07" (1/1) ... [2022-11-21 17:28:07,294 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:28:07" (1/1) ... [2022-11-21 17:28:07,295 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:28:07" (1/1) ... [2022-11-21 17:28:07,297 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:28:07" (1/1) ... [2022-11-21 17:28:07,299 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-21 17:28:07,300 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-21 17:28:07,300 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-21 17:28:07,300 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-21 17:28:07,301 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:28:07" (1/1) ... [2022-11-21 17:28:07,308 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 17:28:07,320 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81739b28-5bb1-46c5-bcf3-a3260fd5e0a6/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 17:28:07,335 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81739b28-5bb1-46c5-bcf3-a3260fd5e0a6/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-21 17:28:07,345 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81739b28-5bb1-46c5-bcf3-a3260fd5e0a6/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-21 17:28:07,381 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-21 17:28:07,393 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-21 17:28:07,393 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-21 17:28:07,393 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-21 17:28:07,393 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-21 17:28:07,395 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-21 17:28:07,395 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-11-21 17:28:07,395 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-11-21 17:28:07,395 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-21 17:28:07,395 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-21 17:28:07,396 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-21 17:28:07,397 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-21 17:28:07,636 INFO L235 CfgBuilder]: Building ICFG [2022-11-21 17:28:07,638 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-21 17:28:07,839 INFO L276 CfgBuilder]: Performing block encoding [2022-11-21 17:28:07,846 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-21 17:28:07,847 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-21 17:28:07,849 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 05:28:07 BoogieIcfgContainer [2022-11-21 17:28:07,849 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-21 17:28:07,852 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-21 17:28:07,852 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-21 17:28:07,856 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-21 17:28:07,856 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 05:28:06" (1/3) ... [2022-11-21 17:28:07,857 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14bfc842 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 05:28:07, skipping insertion in model container [2022-11-21 17:28:07,857 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:28:07" (2/3) ... [2022-11-21 17:28:07,858 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14bfc842 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 05:28:07, skipping insertion in model container [2022-11-21 17:28:07,858 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 05:28:07" (3/3) ... [2022-11-21 17:28:07,859 INFO L112 eAbstractionObserver]: Analyzing ICFG 04-mutex_04-munge_nr.i [2022-11-21 17:28:07,869 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-21 17:28:07,880 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-21 17:28:07,891 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2022-11-21 17:28:07,891 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-21 17:28:07,949 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-11-21 17:28:07,988 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 66 places, 62 transitions, 132 flow [2022-11-21 17:28:08,027 INFO L130 PetriNetUnfolder]: 0/61 cut-off events. [2022-11-21 17:28:08,028 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-21 17:28:08,031 INFO L83 FinitePrefix]: Finished finitePrefix Result has 66 conditions, 61 events. 0/61 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 42 event pairs, 0 based on Foata normal form. 0/57 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2022-11-21 17:28:08,031 INFO L82 GeneralOperation]: Start removeDead. Operand has 66 places, 62 transitions, 132 flow [2022-11-21 17:28:08,035 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 57 places, 53 transitions, 109 flow [2022-11-21 17:28:08,047 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-21 17:28:08,054 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;@119d43cd, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-21 17:28:08,054 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2022-11-21 17:28:08,068 INFO L130 PetriNetUnfolder]: 0/36 cut-off events. [2022-11-21 17:28:08,068 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-21 17:28:08,069 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 17:28:08,069 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 17:28:08,070 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-21 17:28:08,076 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:28:08,076 INFO L85 PathProgramCache]: Analyzing trace with hash 826068963, now seen corresponding path program 1 times [2022-11-21 17:28:08,085 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 17:28:08,085 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [598906383] [2022-11-21 17:28:08,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:28:08,086 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 17:28:08,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:28:08,489 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 17:28:08,490 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 17:28:08,490 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [598906383] [2022-11-21 17:28:08,491 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [598906383] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 17:28:08,491 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 17:28:08,491 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-21 17:28:08,493 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1323780899] [2022-11-21 17:28:08,493 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 17:28:08,500 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 17:28:08,501 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 17:28:08,533 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 17:28:08,535 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 17:28:08,538 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 49 out of 62 [2022-11-21 17:28:08,541 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 53 transitions, 109 flow. Second operand has 3 states, 3 states have (on average 50.0) internal successors, (150), 3 states have internal predecessors, (150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:28:08,541 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 17:28:08,541 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 49 of 62 [2022-11-21 17:28:08,542 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 17:28:08,613 INFO L130 PetriNetUnfolder]: 9/88 cut-off events. [2022-11-21 17:28:08,613 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-21 17:28:08,615 INFO L83 FinitePrefix]: Finished finitePrefix Result has 123 conditions, 88 events. 9/88 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 218 event pairs, 4 based on Foata normal form. 0/84 useless extension candidates. Maximal degree in co-relation 95. Up to 17 conditions per place. [2022-11-21 17:28:08,616 INFO L137 encePairwiseOnDemand]: 55/62 looper letters, 11 selfloop transitions, 3 changer transitions 4/59 dead transitions. [2022-11-21 17:28:08,617 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 59 transitions, 157 flow [2022-11-21 17:28:08,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 17:28:08,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-21 17:28:08,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 169 transitions. [2022-11-21 17:28:08,634 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9086021505376344 [2022-11-21 17:28:08,634 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 169 transitions. [2022-11-21 17:28:08,635 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 169 transitions. [2022-11-21 17:28:08,638 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 17:28:08,640 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 169 transitions. [2022-11-21 17:28:08,643 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 56.333333333333336) internal successors, (169), 3 states have internal predecessors, (169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:28:08,647 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 62.0) internal successors, (248), 4 states have internal predecessors, (248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:28:08,648 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 62.0) internal successors, (248), 4 states have internal predecessors, (248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:28:08,650 INFO L175 Difference]: Start difference. First operand has 57 places, 53 transitions, 109 flow. Second operand 3 states and 169 transitions. [2022-11-21 17:28:08,651 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 59 transitions, 157 flow [2022-11-21 17:28:08,653 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 59 transitions, 156 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-21 17:28:08,656 INFO L231 Difference]: Finished difference. Result has 59 places, 53 transitions, 125 flow [2022-11-21 17:28:08,658 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=62, PETRI_DIFFERENCE_MINUEND_FLOW=108, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=53, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=50, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=125, PETRI_PLACES=59, PETRI_TRANSITIONS=53} [2022-11-21 17:28:08,663 INFO L288 CegarLoopForPetriNet]: 57 programPoint places, 2 predicate places. [2022-11-21 17:28:08,663 INFO L495 AbstractCegarLoop]: Abstraction has has 59 places, 53 transitions, 125 flow [2022-11-21 17:28:08,663 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 50.0) internal successors, (150), 3 states have internal predecessors, (150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:28:08,664 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 17:28:08,664 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] [2022-11-21 17:28:08,664 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-21 17:28:08,664 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-21 17:28:08,665 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:28:08,665 INFO L85 PathProgramCache]: Analyzing trace with hash -1662206201, now seen corresponding path program 1 times [2022-11-21 17:28:08,666 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 17:28:08,666 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2144311215] [2022-11-21 17:28:08,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:28:08,666 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 17:28:08,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:28:09,118 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 17:28:09,118 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 17:28:09,118 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2144311215] [2022-11-21 17:28:09,118 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2144311215] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 17:28:09,119 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 17:28:09,119 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-21 17:28:09,119 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1848549552] [2022-11-21 17:28:09,119 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 17:28:09,121 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-21 17:28:09,121 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 17:28:09,122 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-21 17:28:09,122 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-21 17:28:09,125 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 44 out of 62 [2022-11-21 17:28:09,126 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 59 places, 53 transitions, 125 flow. Second operand has 7 states, 7 states have (on average 46.142857142857146) internal successors, (323), 7 states have internal predecessors, (323), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:28:09,126 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 17:28:09,126 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 44 of 62 [2022-11-21 17:28:09,126 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 17:28:09,402 INFO L130 PetriNetUnfolder]: 24/158 cut-off events. [2022-11-21 17:28:09,402 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-21 17:28:09,404 INFO L83 FinitePrefix]: Finished finitePrefix Result has 261 conditions, 158 events. 24/158 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 645 event pairs, 0 based on Foata normal form. 1/159 useless extension candidates. Maximal degree in co-relation 226. Up to 21 conditions per place. [2022-11-21 17:28:09,405 INFO L137 encePairwiseOnDemand]: 54/62 looper letters, 21 selfloop transitions, 20 changer transitions 0/77 dead transitions. [2022-11-21 17:28:09,405 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 77 transitions, 255 flow [2022-11-21 17:28:09,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-21 17:28:09,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-11-21 17:28:09,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 526 transitions. [2022-11-21 17:28:09,410 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7712609970674487 [2022-11-21 17:28:09,410 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 526 transitions. [2022-11-21 17:28:09,410 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 526 transitions. [2022-11-21 17:28:09,411 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 17:28:09,412 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 526 transitions. [2022-11-21 17:28:09,414 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 47.81818181818182) internal successors, (526), 11 states have internal predecessors, (526), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:28:09,417 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 62.0) internal successors, (744), 12 states have internal predecessors, (744), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:28:09,418 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 62.0) internal successors, (744), 12 states have internal predecessors, (744), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:28:09,418 INFO L175 Difference]: Start difference. First operand has 59 places, 53 transitions, 125 flow. Second operand 11 states and 526 transitions. [2022-11-21 17:28:09,418 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 77 transitions, 255 flow [2022-11-21 17:28:09,420 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 77 transitions, 252 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-21 17:28:09,422 INFO L231 Difference]: Finished difference. Result has 70 places, 67 transitions, 201 flow [2022-11-21 17:28:09,422 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=62, PETRI_DIFFERENCE_MINUEND_FLOW=122, PETRI_DIFFERENCE_MINUEND_PLACES=58, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=53, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=201, PETRI_PLACES=70, PETRI_TRANSITIONS=67} [2022-11-21 17:28:09,423 INFO L288 CegarLoopForPetriNet]: 57 programPoint places, 13 predicate places. [2022-11-21 17:28:09,423 INFO L495 AbstractCegarLoop]: Abstraction has has 70 places, 67 transitions, 201 flow [2022-11-21 17:28:09,424 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 46.142857142857146) internal successors, (323), 7 states have internal predecessors, (323), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:28:09,424 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 17:28:09,424 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] [2022-11-21 17:28:09,424 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-21 17:28:09,424 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-21 17:28:09,425 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:28:09,425 INFO L85 PathProgramCache]: Analyzing trace with hash -1139882425, now seen corresponding path program 2 times [2022-11-21 17:28:09,425 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 17:28:09,426 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1290966887] [2022-11-21 17:28:09,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:28:09,426 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 17:28:09,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:28:09,698 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 17:28:09,699 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 17:28:09,699 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1290966887] [2022-11-21 17:28:09,699 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1290966887] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 17:28:09,701 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 17:28:09,701 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-21 17:28:09,701 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [90309925] [2022-11-21 17:28:09,702 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 17:28:09,703 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-21 17:28:09,704 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 17:28:09,704 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-21 17:28:09,704 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-21 17:28:09,707 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 44 out of 62 [2022-11-21 17:28:09,708 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 67 transitions, 201 flow. Second operand has 7 states, 7 states have (on average 46.142857142857146) internal successors, (323), 7 states have internal predecessors, (323), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:28:09,708 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 17:28:09,708 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 44 of 62 [2022-11-21 17:28:09,708 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 17:28:09,985 INFO L130 PetriNetUnfolder]: 27/192 cut-off events. [2022-11-21 17:28:09,986 INFO L131 PetriNetUnfolder]: For 38/45 co-relation queries the response was YES. [2022-11-21 17:28:09,989 INFO L83 FinitePrefix]: Finished finitePrefix Result has 383 conditions, 192 events. 27/192 cut-off events. For 38/45 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 887 event pairs, 1 based on Foata normal form. 9/201 useless extension candidates. Maximal degree in co-relation 346. Up to 25 conditions per place. [2022-11-21 17:28:09,991 INFO L137 encePairwiseOnDemand]: 54/62 looper letters, 29 selfloop transitions, 23 changer transitions 0/88 dead transitions. [2022-11-21 17:28:09,991 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 78 places, 88 transitions, 385 flow [2022-11-21 17:28:09,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-21 17:28:09,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-11-21 17:28:09,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 440 transitions. [2022-11-21 17:28:09,995 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7885304659498208 [2022-11-21 17:28:09,995 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 440 transitions. [2022-11-21 17:28:09,996 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 440 transitions. [2022-11-21 17:28:09,997 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 17:28:09,997 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 440 transitions. [2022-11-21 17:28:09,999 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 48.888888888888886) internal successors, (440), 9 states have internal predecessors, (440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:28:10,003 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 62.0) internal successors, (620), 10 states have internal predecessors, (620), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:28:10,004 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 62.0) internal successors, (620), 10 states have internal predecessors, (620), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:28:10,004 INFO L175 Difference]: Start difference. First operand has 70 places, 67 transitions, 201 flow. Second operand 9 states and 440 transitions. [2022-11-21 17:28:10,004 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 78 places, 88 transitions, 385 flow [2022-11-21 17:28:10,009 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 78 places, 88 transitions, 385 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-21 17:28:10,012 INFO L231 Difference]: Finished difference. Result has 83 places, 76 transitions, 327 flow [2022-11-21 17:28:10,012 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=62, PETRI_DIFFERENCE_MINUEND_FLOW=201, PETRI_DIFFERENCE_MINUEND_PLACES=70, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=67, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=48, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=327, PETRI_PLACES=83, PETRI_TRANSITIONS=76} [2022-11-21 17:28:10,016 INFO L288 CegarLoopForPetriNet]: 57 programPoint places, 26 predicate places. [2022-11-21 17:28:10,017 INFO L495 AbstractCegarLoop]: Abstraction has has 83 places, 76 transitions, 327 flow [2022-11-21 17:28:10,017 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 46.142857142857146) internal successors, (323), 7 states have internal predecessors, (323), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:28:10,018 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 17:28:10,018 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] [2022-11-21 17:28:10,018 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-21 17:28:10,018 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-21 17:28:10,020 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:28:10,020 INFO L85 PathProgramCache]: Analyzing trace with hash 2117284251, now seen corresponding path program 3 times [2022-11-21 17:28:10,020 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 17:28:10,020 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1270744230] [2022-11-21 17:28:10,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:28:10,021 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 17:28:10,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:28:10,272 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 17:28:10,272 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 17:28:10,273 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1270744230] [2022-11-21 17:28:10,273 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1270744230] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 17:28:10,273 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 17:28:10,273 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-21 17:28:10,274 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [744221452] [2022-11-21 17:28:10,274 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 17:28:10,278 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-21 17:28:10,279 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 17:28:10,280 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-21 17:28:10,280 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-21 17:28:10,282 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 44 out of 62 [2022-11-21 17:28:10,283 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 83 places, 76 transitions, 327 flow. Second operand has 7 states, 7 states have (on average 46.142857142857146) internal successors, (323), 7 states have internal predecessors, (323), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:28:10,284 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 17:28:10,285 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 44 of 62 [2022-11-21 17:28:10,285 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 17:28:10,539 INFO L130 PetriNetUnfolder]: 31/265 cut-off events. [2022-11-21 17:28:10,539 INFO L131 PetriNetUnfolder]: For 235/243 co-relation queries the response was YES. [2022-11-21 17:28:10,540 INFO L83 FinitePrefix]: Finished finitePrefix Result has 622 conditions, 265 events. 31/265 cut-off events. For 235/243 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 1549 event pairs, 2 based on Foata normal form. 9/274 useless extension candidates. Maximal degree in co-relation 579. Up to 38 conditions per place. [2022-11-21 17:28:10,542 INFO L137 encePairwiseOnDemand]: 54/62 looper letters, 28 selfloop transitions, 32 changer transitions 0/96 dead transitions. [2022-11-21 17:28:10,542 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 93 places, 96 transitions, 560 flow [2022-11-21 17:28:10,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-21 17:28:10,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-11-21 17:28:10,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 530 transitions. [2022-11-21 17:28:10,544 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7771260997067448 [2022-11-21 17:28:10,544 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 530 transitions. [2022-11-21 17:28:10,545 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 530 transitions. [2022-11-21 17:28:10,545 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 17:28:10,545 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 530 transitions. [2022-11-21 17:28:10,547 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 48.18181818181818) internal successors, (530), 11 states have internal predecessors, (530), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:28:10,548 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 62.0) internal successors, (744), 12 states have internal predecessors, (744), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:28:10,548 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 62.0) internal successors, (744), 12 states have internal predecessors, (744), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:28:10,549 INFO L175 Difference]: Start difference. First operand has 83 places, 76 transitions, 327 flow. Second operand 11 states and 530 transitions. [2022-11-21 17:28:10,549 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 93 places, 96 transitions, 560 flow [2022-11-21 17:28:10,553 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 91 places, 96 transitions, 546 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-21 17:28:10,557 INFO L231 Difference]: Finished difference. Result has 95 places, 87 transitions, 495 flow [2022-11-21 17:28:10,557 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=62, PETRI_DIFFERENCE_MINUEND_FLOW=321, PETRI_DIFFERENCE_MINUEND_PLACES=81, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=76, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=50, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=495, PETRI_PLACES=95, PETRI_TRANSITIONS=87} [2022-11-21 17:28:10,559 INFO L288 CegarLoopForPetriNet]: 57 programPoint places, 38 predicate places. [2022-11-21 17:28:10,559 INFO L495 AbstractCegarLoop]: Abstraction has has 95 places, 87 transitions, 495 flow [2022-11-21 17:28:10,561 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 46.142857142857146) internal successors, (323), 7 states have internal predecessors, (323), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:28:10,561 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 17:28:10,561 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] [2022-11-21 17:28:10,567 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-21 17:28:10,567 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-21 17:28:10,568 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:28:10,570 INFO L85 PathProgramCache]: Analyzing trace with hash 1830399209, now seen corresponding path program 4 times [2022-11-21 17:28:10,570 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 17:28:10,570 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1980454700] [2022-11-21 17:28:10,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:28:10,571 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 17:28:10,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:28:10,754 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 17:28:10,754 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 17:28:10,754 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1980454700] [2022-11-21 17:28:10,755 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1980454700] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 17:28:10,755 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 17:28:10,755 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-21 17:28:10,755 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1660924865] [2022-11-21 17:28:10,755 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 17:28:10,756 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-21 17:28:10,756 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 17:28:10,756 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-21 17:28:10,757 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-21 17:28:10,758 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 44 out of 62 [2022-11-21 17:28:10,758 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 95 places, 87 transitions, 495 flow. Second operand has 7 states, 7 states have (on average 46.142857142857146) internal successors, (323), 7 states have internal predecessors, (323), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:28:10,758 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 17:28:10,758 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 44 of 62 [2022-11-21 17:28:10,759 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 17:28:11,047 INFO L130 PetriNetUnfolder]: 42/373 cut-off events. [2022-11-21 17:28:11,047 INFO L131 PetriNetUnfolder]: For 664/686 co-relation queries the response was YES. [2022-11-21 17:28:11,049 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1003 conditions, 373 events. 42/373 cut-off events. For 664/686 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 2592 event pairs, 7 based on Foata normal form. 19/391 useless extension candidates. Maximal degree in co-relation 956. Up to 61 conditions per place. [2022-11-21 17:28:11,051 INFO L137 encePairwiseOnDemand]: 54/62 looper letters, 44 selfloop transitions, 38 changer transitions 0/118 dead transitions. [2022-11-21 17:28:11,051 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 104 places, 118 transitions, 893 flow [2022-11-21 17:28:11,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-21 17:28:11,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-11-21 17:28:11,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 493 transitions. [2022-11-21 17:28:11,054 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7951612903225806 [2022-11-21 17:28:11,054 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 493 transitions. [2022-11-21 17:28:11,054 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 493 transitions. [2022-11-21 17:28:11,055 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 17:28:11,055 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 493 transitions. [2022-11-21 17:28:11,057 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 49.3) internal successors, (493), 10 states have internal predecessors, (493), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:28:11,058 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 62.0) internal successors, (682), 11 states have internal predecessors, (682), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:28:11,059 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 62.0) internal successors, (682), 11 states have internal predecessors, (682), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:28:11,059 INFO L175 Difference]: Start difference. First operand has 95 places, 87 transitions, 495 flow. Second operand 10 states and 493 transitions. [2022-11-21 17:28:11,059 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 104 places, 118 transitions, 893 flow [2022-11-21 17:28:11,066 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 100 places, 118 transitions, 851 flow, removed 5 selfloop flow, removed 4 redundant places. [2022-11-21 17:28:11,069 INFO L231 Difference]: Finished difference. Result has 106 places, 102 transitions, 738 flow [2022-11-21 17:28:11,070 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=62, PETRI_DIFFERENCE_MINUEND_FLOW=463, PETRI_DIFFERENCE_MINUEND_PLACES=91, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=87, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=23, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=58, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=738, PETRI_PLACES=106, PETRI_TRANSITIONS=102} [2022-11-21 17:28:11,071 INFO L288 CegarLoopForPetriNet]: 57 programPoint places, 49 predicate places. [2022-11-21 17:28:11,071 INFO L495 AbstractCegarLoop]: Abstraction has has 106 places, 102 transitions, 738 flow [2022-11-21 17:28:11,071 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 46.142857142857146) internal successors, (323), 7 states have internal predecessors, (323), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:28:11,072 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 17:28:11,072 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] [2022-11-21 17:28:11,072 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-21 17:28:11,072 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-21 17:28:11,073 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:28:11,073 INFO L85 PathProgramCache]: Analyzing trace with hash -311048679, now seen corresponding path program 5 times [2022-11-21 17:28:11,073 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 17:28:11,074 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1679617398] [2022-11-21 17:28:11,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:28:11,074 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 17:28:11,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:28:11,239 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 17:28:11,240 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 17:28:11,240 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1679617398] [2022-11-21 17:28:11,240 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1679617398] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 17:28:11,240 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 17:28:11,240 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-21 17:28:11,241 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [825637798] [2022-11-21 17:28:11,241 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 17:28:11,241 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-21 17:28:11,241 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 17:28:11,242 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-21 17:28:11,242 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-21 17:28:11,243 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 44 out of 62 [2022-11-21 17:28:11,243 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 106 places, 102 transitions, 738 flow. Second operand has 7 states, 7 states have (on average 46.142857142857146) internal successors, (323), 7 states have internal predecessors, (323), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:28:11,243 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 17:28:11,244 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 44 of 62 [2022-11-21 17:28:11,244 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 17:28:11,506 INFO L130 PetriNetUnfolder]: 41/395 cut-off events. [2022-11-21 17:28:11,506 INFO L131 PetriNetUnfolder]: For 1119/1148 co-relation queries the response was YES. [2022-11-21 17:28:11,509 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1179 conditions, 395 events. 41/395 cut-off events. For 1119/1148 co-relation queries the response was YES. Maximal size of possible extension queue 43. Compared 2869 event pairs, 8 based on Foata normal form. 22/416 useless extension candidates. Maximal degree in co-relation 1126. Up to 60 conditions per place. [2022-11-21 17:28:11,511 INFO L137 encePairwiseOnDemand]: 54/62 looper letters, 44 selfloop transitions, 43 changer transitions 0/123 dead transitions. [2022-11-21 17:28:11,511 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 115 places, 123 transitions, 1083 flow [2022-11-21 17:28:11,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-21 17:28:11,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-11-21 17:28:11,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 489 transitions. [2022-11-21 17:28:11,513 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7887096774193548 [2022-11-21 17:28:11,514 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 489 transitions. [2022-11-21 17:28:11,514 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 489 transitions. [2022-11-21 17:28:11,514 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 17:28:11,514 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 489 transitions. [2022-11-21 17:28:11,516 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 48.9) internal successors, (489), 10 states have internal predecessors, (489), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:28:11,517 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 62.0) internal successors, (682), 11 states have internal predecessors, (682), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:28:11,519 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 62.0) internal successors, (682), 11 states have internal predecessors, (682), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:28:11,519 INFO L175 Difference]: Start difference. First operand has 106 places, 102 transitions, 738 flow. Second operand 10 states and 489 transitions. [2022-11-21 17:28:11,519 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 115 places, 123 transitions, 1083 flow [2022-11-21 17:28:11,529 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 114 places, 123 transitions, 1065 flow, removed 7 selfloop flow, removed 1 redundant places. [2022-11-21 17:28:11,533 INFO L231 Difference]: Finished difference. Result has 119 places, 109 transitions, 946 flow [2022-11-21 17:28:11,533 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=62, PETRI_DIFFERENCE_MINUEND_FLOW=721, PETRI_DIFFERENCE_MINUEND_PLACES=105, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=102, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=36, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=61, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=946, PETRI_PLACES=119, PETRI_TRANSITIONS=109} [2022-11-21 17:28:11,536 INFO L288 CegarLoopForPetriNet]: 57 programPoint places, 62 predicate places. [2022-11-21 17:28:11,536 INFO L495 AbstractCegarLoop]: Abstraction has has 119 places, 109 transitions, 946 flow [2022-11-21 17:28:11,536 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 46.142857142857146) internal successors, (323), 7 states have internal predecessors, (323), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:28:11,537 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 17:28:11,537 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] [2022-11-21 17:28:11,537 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-21 17:28:11,538 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-21 17:28:11,538 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:28:11,538 INFO L85 PathProgramCache]: Analyzing trace with hash -659874989, now seen corresponding path program 6 times [2022-11-21 17:28:11,539 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 17:28:11,539 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [546305698] [2022-11-21 17:28:11,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:28:11,539 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 17:28:11,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:28:11,746 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 17:28:11,747 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 17:28:11,747 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [546305698] [2022-11-21 17:28:11,747 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [546305698] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 17:28:11,747 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 17:28:11,748 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-21 17:28:11,748 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [618355594] [2022-11-21 17:28:11,748 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 17:28:11,749 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-21 17:28:11,749 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 17:28:11,749 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-21 17:28:11,749 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-21 17:28:11,750 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 44 out of 62 [2022-11-21 17:28:11,751 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 119 places, 109 transitions, 946 flow. Second operand has 7 states, 7 states have (on average 46.142857142857146) internal successors, (323), 7 states have internal predecessors, (323), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:28:11,751 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 17:28:11,751 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 44 of 62 [2022-11-21 17:28:11,751 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 17:28:12,010 INFO L130 PetriNetUnfolder]: 41/404 cut-off events. [2022-11-21 17:28:12,011 INFO L131 PetriNetUnfolder]: For 1707/1732 co-relation queries the response was YES. [2022-11-21 17:28:12,012 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1317 conditions, 404 events. 41/404 cut-off events. For 1707/1732 co-relation queries the response was YES. Maximal size of possible extension queue 43. Compared 2949 event pairs, 6 based on Foata normal form. 16/419 useless extension candidates. Maximal degree in co-relation 1259. Up to 62 conditions per place. [2022-11-21 17:28:12,014 INFO L137 encePairwiseOnDemand]: 54/62 looper letters, 41 selfloop transitions, 46 changer transitions 0/123 dead transitions. [2022-11-21 17:28:12,015 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 129 places, 123 transitions, 1225 flow [2022-11-21 17:28:12,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-21 17:28:12,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-11-21 17:28:12,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 536 transitions. [2022-11-21 17:28:12,017 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7859237536656891 [2022-11-21 17:28:12,017 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 536 transitions. [2022-11-21 17:28:12,018 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 536 transitions. [2022-11-21 17:28:12,018 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 17:28:12,018 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 536 transitions. [2022-11-21 17:28:12,020 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 48.72727272727273) internal successors, (536), 11 states have internal predecessors, (536), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:28:12,021 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 62.0) internal successors, (744), 12 states have internal predecessors, (744), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:28:12,022 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 62.0) internal successors, (744), 12 states have internal predecessors, (744), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:28:12,022 INFO L175 Difference]: Start difference. First operand has 119 places, 109 transitions, 946 flow. Second operand 11 states and 536 transitions. [2022-11-21 17:28:12,022 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 129 places, 123 transitions, 1225 flow [2022-11-21 17:28:12,036 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 125 places, 123 transitions, 1179 flow, removed 13 selfloop flow, removed 4 redundant places. [2022-11-21 17:28:12,039 INFO L231 Difference]: Finished difference. Result has 129 places, 115 transitions, 1118 flow [2022-11-21 17:28:12,040 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=62, PETRI_DIFFERENCE_MINUEND_FLOW=904, PETRI_DIFFERENCE_MINUEND_PLACES=115, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=109, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=41, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=64, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=1118, PETRI_PLACES=129, PETRI_TRANSITIONS=115} [2022-11-21 17:28:12,040 INFO L288 CegarLoopForPetriNet]: 57 programPoint places, 72 predicate places. [2022-11-21 17:28:12,041 INFO L495 AbstractCegarLoop]: Abstraction has has 129 places, 115 transitions, 1118 flow [2022-11-21 17:28:12,041 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 46.142857142857146) internal successors, (323), 7 states have internal predecessors, (323), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:28:12,041 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 17:28:12,041 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] [2022-11-21 17:28:12,042 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-21 17:28:12,042 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-21 17:28:12,042 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:28:12,043 INFO L85 PathProgramCache]: Analyzing trace with hash -1887350343, now seen corresponding path program 7 times [2022-11-21 17:28:12,043 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 17:28:12,043 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1900066754] [2022-11-21 17:28:12,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:28:12,043 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 17:28:12,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:28:12,195 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 17:28:12,195 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 17:28:12,195 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1900066754] [2022-11-21 17:28:12,195 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1900066754] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 17:28:12,196 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 17:28:12,196 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-21 17:28:12,200 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1557264723] [2022-11-21 17:28:12,200 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 17:28:12,201 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-21 17:28:12,201 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 17:28:12,201 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-21 17:28:12,201 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-21 17:28:12,202 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 44 out of 62 [2022-11-21 17:28:12,204 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 129 places, 115 transitions, 1118 flow. Second operand has 7 states, 7 states have (on average 46.142857142857146) internal successors, (323), 7 states have internal predecessors, (323), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:28:12,205 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 17:28:12,205 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 44 of 62 [2022-11-21 17:28:12,205 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 17:28:12,454 INFO L130 PetriNetUnfolder]: 40/387 cut-off events. [2022-11-21 17:28:12,454 INFO L131 PetriNetUnfolder]: For 2066/2091 co-relation queries the response was YES. [2022-11-21 17:28:12,456 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1346 conditions, 387 events. 40/387 cut-off events. For 2066/2091 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 2739 event pairs, 5 based on Foata normal form. 17/403 useless extension candidates. Maximal degree in co-relation 1286. Up to 57 conditions per place. [2022-11-21 17:28:12,458 INFO L137 encePairwiseOnDemand]: 54/62 looper letters, 44 selfloop transitions, 40 changer transitions 0/120 dead transitions. [2022-11-21 17:28:12,458 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 139 places, 120 transitions, 1273 flow [2022-11-21 17:28:12,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-21 17:28:12,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-11-21 17:28:12,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 536 transitions. [2022-11-21 17:28:12,460 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7859237536656891 [2022-11-21 17:28:12,461 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 536 transitions. [2022-11-21 17:28:12,461 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 536 transitions. [2022-11-21 17:28:12,461 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 17:28:12,461 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 536 transitions. [2022-11-21 17:28:12,463 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 48.72727272727273) internal successors, (536), 11 states have internal predecessors, (536), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:28:12,464 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 62.0) internal successors, (744), 12 states have internal predecessors, (744), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:28:12,465 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 62.0) internal successors, (744), 12 states have internal predecessors, (744), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:28:12,465 INFO L175 Difference]: Start difference. First operand has 129 places, 115 transitions, 1118 flow. Second operand 11 states and 536 transitions. [2022-11-21 17:28:12,465 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 139 places, 120 transitions, 1273 flow [2022-11-21 17:28:12,479 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 134 places, 120 transitions, 1172 flow, removed 23 selfloop flow, removed 5 redundant places. [2022-11-21 17:28:12,482 INFO L231 Difference]: Finished difference. Result has 137 places, 114 transitions, 1094 flow [2022-11-21 17:28:12,482 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=62, PETRI_DIFFERENCE_MINUEND_FLOW=956, PETRI_DIFFERENCE_MINUEND_PLACES=124, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=111, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=37, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=71, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=1094, PETRI_PLACES=137, PETRI_TRANSITIONS=114} [2022-11-21 17:28:12,483 INFO L288 CegarLoopForPetriNet]: 57 programPoint places, 80 predicate places. [2022-11-21 17:28:12,483 INFO L495 AbstractCegarLoop]: Abstraction has has 137 places, 114 transitions, 1094 flow [2022-11-21 17:28:12,483 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 46.142857142857146) internal successors, (323), 7 states have internal predecessors, (323), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:28:12,483 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 17:28:12,483 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 17:28:12,484 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-21 17:28:12,484 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-21 17:28:12,484 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:28:12,484 INFO L85 PathProgramCache]: Analyzing trace with hash 976333893, now seen corresponding path program 8 times [2022-11-21 17:28:12,485 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 17:28:12,485 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [213953955] [2022-11-21 17:28:12,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:28:12,485 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 17:28:12,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:28:12,628 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 17:28:12,628 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 17:28:12,628 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [213953955] [2022-11-21 17:28:12,629 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [213953955] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 17:28:12,629 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 17:28:12,629 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-21 17:28:12,629 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1701771851] [2022-11-21 17:28:12,629 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 17:28:12,630 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-21 17:28:12,630 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 17:28:12,630 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-21 17:28:12,630 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-21 17:28:12,631 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 44 out of 62 [2022-11-21 17:28:12,632 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 137 places, 114 transitions, 1094 flow. Second operand has 7 states, 7 states have (on average 46.142857142857146) internal successors, (323), 7 states have internal predecessors, (323), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:28:12,632 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 17:28:12,632 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 44 of 62 [2022-11-21 17:28:12,632 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 17:28:12,870 INFO L130 PetriNetUnfolder]: 39/370 cut-off events. [2022-11-21 17:28:12,871 INFO L131 PetriNetUnfolder]: For 1841/1860 co-relation queries the response was YES. [2022-11-21 17:28:12,873 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1294 conditions, 370 events. 39/370 cut-off events. For 1841/1860 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 2538 event pairs, 9 based on Foata normal form. 16/385 useless extension candidates. Maximal degree in co-relation 1231. Up to 56 conditions per place. [2022-11-21 17:28:12,876 INFO L137 encePairwiseOnDemand]: 54/62 looper letters, 40 selfloop transitions, 42 changer transitions 0/118 dead transitions. [2022-11-21 17:28:12,876 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 146 places, 118 transitions, 1240 flow [2022-11-21 17:28:12,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-21 17:28:12,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-11-21 17:28:12,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 483 transitions. [2022-11-21 17:28:12,879 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7790322580645161 [2022-11-21 17:28:12,879 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 483 transitions. [2022-11-21 17:28:12,879 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 483 transitions. [2022-11-21 17:28:12,880 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 17:28:12,880 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 483 transitions. [2022-11-21 17:28:12,881 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 48.3) internal successors, (483), 10 states have internal predecessors, (483), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:28:12,883 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 62.0) internal successors, (682), 11 states have internal predecessors, (682), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:28:12,884 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 62.0) internal successors, (682), 11 states have internal predecessors, (682), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:28:12,884 INFO L175 Difference]: Start difference. First operand has 137 places, 114 transitions, 1094 flow. Second operand 10 states and 483 transitions. [2022-11-21 17:28:12,884 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 146 places, 118 transitions, 1240 flow [2022-11-21 17:28:12,903 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 140 places, 118 transitions, 1177 flow, removed 4 selfloop flow, removed 6 redundant places. [2022-11-21 17:28:12,909 INFO L231 Difference]: Finished difference. Result has 143 places, 113 transitions, 1103 flow [2022-11-21 17:28:12,909 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=62, PETRI_DIFFERENCE_MINUEND_FLOW=963, PETRI_DIFFERENCE_MINUEND_PLACES=131, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=110, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=39, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=68, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=1103, PETRI_PLACES=143, PETRI_TRANSITIONS=113} [2022-11-21 17:28:12,911 INFO L288 CegarLoopForPetriNet]: 57 programPoint places, 86 predicate places. [2022-11-21 17:28:12,911 INFO L495 AbstractCegarLoop]: Abstraction has has 143 places, 113 transitions, 1103 flow [2022-11-21 17:28:12,911 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 46.142857142857146) internal successors, (323), 7 states have internal predecessors, (323), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:28:12,911 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 17:28:12,912 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] [2022-11-21 17:28:12,912 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-21 17:28:12,912 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-21 17:28:12,913 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:28:12,913 INFO L85 PathProgramCache]: Analyzing trace with hash 1179767537, now seen corresponding path program 9 times [2022-11-21 17:28:12,913 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 17:28:12,913 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1315622990] [2022-11-21 17:28:12,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:28:12,914 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 17:28:12,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:28:13,071 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 17:28:13,071 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 17:28:13,071 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1315622990] [2022-11-21 17:28:13,071 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1315622990] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 17:28:13,072 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 17:28:13,072 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-21 17:28:13,072 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [657679827] [2022-11-21 17:28:13,072 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 17:28:13,072 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-21 17:28:13,073 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 17:28:13,073 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-21 17:28:13,073 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-21 17:28:13,074 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 44 out of 62 [2022-11-21 17:28:13,074 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 143 places, 113 transitions, 1103 flow. Second operand has 7 states, 7 states have (on average 46.142857142857146) internal successors, (323), 7 states have internal predecessors, (323), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:28:13,074 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 17:28:13,075 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 44 of 62 [2022-11-21 17:28:13,075 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 17:28:13,321 INFO L130 PetriNetUnfolder]: 39/367 cut-off events. [2022-11-21 17:28:13,321 INFO L131 PetriNetUnfolder]: For 1901/1918 co-relation queries the response was YES. [2022-11-21 17:28:13,322 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1334 conditions, 367 events. 39/367 cut-off events. For 1901/1918 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 2520 event pairs, 7 based on Foata normal form. 11/377 useless extension candidates. Maximal degree in co-relation 1268. Up to 62 conditions per place. [2022-11-21 17:28:13,324 INFO L137 encePairwiseOnDemand]: 54/62 looper letters, 46 selfloop transitions, 44 changer transitions 0/126 dead transitions. [2022-11-21 17:28:13,324 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 152 places, 126 transitions, 1368 flow [2022-11-21 17:28:13,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-21 17:28:13,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-11-21 17:28:13,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 486 transitions. [2022-11-21 17:28:13,326 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7838709677419354 [2022-11-21 17:28:13,327 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 486 transitions. [2022-11-21 17:28:13,327 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 486 transitions. [2022-11-21 17:28:13,327 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 17:28:13,327 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 486 transitions. [2022-11-21 17:28:13,329 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 48.6) internal successors, (486), 10 states have internal predecessors, (486), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:28:13,330 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 62.0) internal successors, (682), 11 states have internal predecessors, (682), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:28:13,330 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 62.0) internal successors, (682), 11 states have internal predecessors, (682), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:28:13,331 INFO L175 Difference]: Start difference. First operand has 143 places, 113 transitions, 1103 flow. Second operand 10 states and 486 transitions. [2022-11-21 17:28:13,331 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 152 places, 126 transitions, 1368 flow [2022-11-21 17:28:13,345 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 146 places, 126 transitions, 1292 flow, removed 3 selfloop flow, removed 6 redundant places. [2022-11-21 17:28:13,347 INFO L231 Difference]: Finished difference. Result has 149 places, 118 transitions, 1221 flow [2022-11-21 17:28:13,348 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=62, PETRI_DIFFERENCE_MINUEND_FLOW=1029, PETRI_DIFFERENCE_MINUEND_PLACES=137, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=113, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=40, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=70, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=1221, PETRI_PLACES=149, PETRI_TRANSITIONS=118} [2022-11-21 17:28:13,348 INFO L288 CegarLoopForPetriNet]: 57 programPoint places, 92 predicate places. [2022-11-21 17:28:13,349 INFO L495 AbstractCegarLoop]: Abstraction has has 149 places, 118 transitions, 1221 flow [2022-11-21 17:28:13,349 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 46.142857142857146) internal successors, (323), 7 states have internal predecessors, (323), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:28:13,349 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 17:28:13,349 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] [2022-11-21 17:28:13,350 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-21 17:28:13,350 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-21 17:28:13,350 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:28:13,350 INFO L85 PathProgramCache]: Analyzing trace with hash -898879589, now seen corresponding path program 10 times [2022-11-21 17:28:13,350 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 17:28:13,351 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1722181207] [2022-11-21 17:28:13,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:28:13,351 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 17:28:13,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:28:13,502 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 17:28:13,503 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 17:28:13,503 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1722181207] [2022-11-21 17:28:13,503 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1722181207] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 17:28:13,503 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 17:28:13,503 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-21 17:28:13,503 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1315486788] [2022-11-21 17:28:13,504 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 17:28:13,504 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-21 17:28:13,504 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 17:28:13,504 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-21 17:28:13,505 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-21 17:28:13,505 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 44 out of 62 [2022-11-21 17:28:13,506 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 149 places, 118 transitions, 1221 flow. Second operand has 7 states, 7 states have (on average 46.142857142857146) internal successors, (323), 7 states have internal predecessors, (323), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:28:13,506 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 17:28:13,506 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 44 of 62 [2022-11-21 17:28:13,506 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 17:28:13,763 INFO L130 PetriNetUnfolder]: 38/350 cut-off events. [2022-11-21 17:28:13,763 INFO L131 PetriNetUnfolder]: For 2030/2047 co-relation queries the response was YES. [2022-11-21 17:28:13,765 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1330 conditions, 350 events. 38/350 cut-off events. For 2030/2047 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 2318 event pairs, 6 based on Foata normal form. 12/361 useless extension candidates. Maximal degree in co-relation 1261. Up to 62 conditions per place. [2022-11-21 17:28:13,767 INFO L137 encePairwiseOnDemand]: 54/62 looper letters, 51 selfloop transitions, 36 changer transitions 0/123 dead transitions. [2022-11-21 17:28:13,767 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 157 places, 123 transitions, 1377 flow [2022-11-21 17:28:13,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-21 17:28:13,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-11-21 17:28:13,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 486 transitions. [2022-11-21 17:28:13,769 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7838709677419354 [2022-11-21 17:28:13,769 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 486 transitions. [2022-11-21 17:28:13,769 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 486 transitions. [2022-11-21 17:28:13,770 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 17:28:13,770 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 486 transitions. [2022-11-21 17:28:13,771 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 48.6) internal successors, (486), 10 states have internal predecessors, (486), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:28:13,773 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 62.0) internal successors, (682), 11 states have internal predecessors, (682), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:28:13,773 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 62.0) internal successors, (682), 11 states have internal predecessors, (682), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:28:13,773 INFO L175 Difference]: Start difference. First operand has 149 places, 118 transitions, 1221 flow. Second operand 10 states and 486 transitions. [2022-11-21 17:28:13,773 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 157 places, 123 transitions, 1377 flow [2022-11-21 17:28:13,788 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 150 places, 123 transitions, 1264 flow, removed 20 selfloop flow, removed 7 redundant places. [2022-11-21 17:28:13,791 INFO L231 Difference]: Finished difference. Result has 153 places, 117 transitions, 1175 flow [2022-11-21 17:28:13,791 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=62, PETRI_DIFFERENCE_MINUEND_FLOW=1042, PETRI_DIFFERENCE_MINUEND_PLACES=141, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=114, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=33, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=78, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=1175, PETRI_PLACES=153, PETRI_TRANSITIONS=117} [2022-11-21 17:28:13,792 INFO L288 CegarLoopForPetriNet]: 57 programPoint places, 96 predicate places. [2022-11-21 17:28:13,792 INFO L495 AbstractCegarLoop]: Abstraction has has 153 places, 117 transitions, 1175 flow [2022-11-21 17:28:13,793 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 46.142857142857146) internal successors, (323), 7 states have internal predecessors, (323), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:28:13,793 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 17:28:13,793 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] [2022-11-21 17:28:13,793 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-21 17:28:13,793 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-21 17:28:13,794 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:28:13,794 INFO L85 PathProgramCache]: Analyzing trace with hash -1606528597, now seen corresponding path program 1 times [2022-11-21 17:28:13,794 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 17:28:13,794 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [349635462] [2022-11-21 17:28:13,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:28:13,794 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 17:28:13,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:28:13,855 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 17:28:13,855 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 17:28:13,856 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [349635462] [2022-11-21 17:28:13,856 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [349635462] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 17:28:13,856 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 17:28:13,856 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-21 17:28:13,856 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [337737358] [2022-11-21 17:28:13,856 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 17:28:13,857 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-21 17:28:13,857 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 17:28:13,857 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-21 17:28:13,857 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-21 17:28:13,858 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 49 out of 62 [2022-11-21 17:28:13,858 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 153 places, 117 transitions, 1175 flow. Second operand has 4 states, 4 states have (on average 50.5) internal successors, (202), 4 states have internal predecessors, (202), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:28:13,858 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 17:28:13,858 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 49 of 62 [2022-11-21 17:28:13,859 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 17:28:13,931 INFO L130 PetriNetUnfolder]: 17/274 cut-off events. [2022-11-21 17:28:13,931 INFO L131 PetriNetUnfolder]: For 1329/1329 co-relation queries the response was YES. [2022-11-21 17:28:13,932 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1048 conditions, 274 events. 17/274 cut-off events. For 1329/1329 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 1724 event pairs, 0 based on Foata normal form. 12/286 useless extension candidates. Maximal degree in co-relation 982. Up to 53 conditions per place. [2022-11-21 17:28:13,934 INFO L137 encePairwiseOnDemand]: 57/62 looper letters, 9 selfloop transitions, 3 changer transitions 2/119 dead transitions. [2022-11-21 17:28:13,934 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 154 places, 119 transitions, 1203 flow [2022-11-21 17:28:13,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-21 17:28:13,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-11-21 17:28:13,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 212 transitions. [2022-11-21 17:28:13,935 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8548387096774194 [2022-11-21 17:28:13,935 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 212 transitions. [2022-11-21 17:28:13,935 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 212 transitions. [2022-11-21 17:28:13,936 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 17:28:13,936 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 212 transitions. [2022-11-21 17:28:13,937 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 53.0) internal successors, (212), 4 states have internal predecessors, (212), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:28:13,937 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 62.0) internal successors, (310), 5 states have internal predecessors, (310), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:28:13,938 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 62.0) internal successors, (310), 5 states have internal predecessors, (310), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:28:13,938 INFO L175 Difference]: Start difference. First operand has 153 places, 117 transitions, 1175 flow. Second operand 4 states and 212 transitions. [2022-11-21 17:28:13,938 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 154 places, 119 transitions, 1203 flow [2022-11-21 17:28:13,950 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 149 places, 119 transitions, 1148 flow, removed 4 selfloop flow, removed 5 redundant places. [2022-11-21 17:28:13,952 INFO L231 Difference]: Finished difference. Result has 149 places, 115 transitions, 1118 flow [2022-11-21 17:28:13,953 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=62, PETRI_DIFFERENCE_MINUEND_FLOW=1112, PETRI_DIFFERENCE_MINUEND_PLACES=146, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=115, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=112, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=1118, PETRI_PLACES=149, PETRI_TRANSITIONS=115} [2022-11-21 17:28:13,953 INFO L288 CegarLoopForPetriNet]: 57 programPoint places, 92 predicate places. [2022-11-21 17:28:13,953 INFO L495 AbstractCegarLoop]: Abstraction has has 149 places, 115 transitions, 1118 flow [2022-11-21 17:28:13,954 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 50.5) internal successors, (202), 4 states have internal predecessors, (202), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:28:13,954 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 17:28:13,954 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] [2022-11-21 17:28:13,954 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-21 17:28:13,954 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-21 17:28:13,955 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:28:13,955 INFO L85 PathProgramCache]: Analyzing trace with hash -780754847, now seen corresponding path program 1 times [2022-11-21 17:28:13,955 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 17:28:13,955 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1542396710] [2022-11-21 17:28:13,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:28:13,955 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 17:28:13,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:28:14,013 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 17:28:14,014 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 17:28:14,014 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1542396710] [2022-11-21 17:28:14,014 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1542396710] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 17:28:14,014 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 17:28:14,014 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-21 17:28:14,014 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1709803699] [2022-11-21 17:28:14,014 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 17:28:14,015 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-21 17:28:14,015 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 17:28:14,015 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-21 17:28:14,015 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-21 17:28:14,016 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 49 out of 62 [2022-11-21 17:28:14,016 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 149 places, 115 transitions, 1118 flow. Second operand has 4 states, 4 states have (on average 50.75) internal successors, (203), 4 states have internal predecessors, (203), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:28:14,016 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 17:28:14,016 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 49 of 62 [2022-11-21 17:28:14,017 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 17:28:14,080 INFO L130 PetriNetUnfolder]: 17/265 cut-off events. [2022-11-21 17:28:14,080 INFO L131 PetriNetUnfolder]: For 1153/1153 co-relation queries the response was YES. [2022-11-21 17:28:14,081 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1006 conditions, 265 events. 17/265 cut-off events. For 1153/1153 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 1657 event pairs, 0 based on Foata normal form. 12/277 useless extension candidates. Maximal degree in co-relation 939. Up to 42 conditions per place. [2022-11-21 17:28:14,082 INFO L137 encePairwiseOnDemand]: 57/62 looper letters, 0 selfloop transitions, 0 changer transitions 117/117 dead transitions. [2022-11-21 17:28:14,082 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 150 places, 117 transitions, 1142 flow [2022-11-21 17:28:14,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-21 17:28:14,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-11-21 17:28:14,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 210 transitions. [2022-11-21 17:28:14,083 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8467741935483871 [2022-11-21 17:28:14,083 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 210 transitions. [2022-11-21 17:28:14,083 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 210 transitions. [2022-11-21 17:28:14,084 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 17:28:14,084 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 210 transitions. [2022-11-21 17:28:14,084 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 52.5) internal successors, (210), 4 states have internal predecessors, (210), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:28:14,085 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 62.0) internal successors, (310), 5 states have internal predecessors, (310), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:28:14,085 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 62.0) internal successors, (310), 5 states have internal predecessors, (310), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:28:14,085 INFO L175 Difference]: Start difference. First operand has 149 places, 115 transitions, 1118 flow. Second operand 4 states and 210 transitions. [2022-11-21 17:28:14,086 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 150 places, 117 transitions, 1142 flow [2022-11-21 17:28:14,097 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 147 places, 117 transitions, 1135 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-11-21 17:28:14,098 INFO L231 Difference]: Finished difference. Result has 147 places, 0 transitions, 0 flow [2022-11-21 17:28:14,098 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=62, PETRI_DIFFERENCE_MINUEND_FLOW=1103, PETRI_DIFFERENCE_MINUEND_PLACES=144, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=113, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=113, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=0, PETRI_PLACES=147, PETRI_TRANSITIONS=0} [2022-11-21 17:28:14,099 INFO L288 CegarLoopForPetriNet]: 57 programPoint places, 90 predicate places. [2022-11-21 17:28:14,099 INFO L495 AbstractCegarLoop]: Abstraction has has 147 places, 0 transitions, 0 flow [2022-11-21 17:28:14,099 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 50.75) internal successors, (203), 4 states have internal predecessors, (203), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:28:14,102 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 7 remaining) [2022-11-21 17:28:14,103 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 7 remaining) [2022-11-21 17:28:14,103 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 7 remaining) [2022-11-21 17:28:14,103 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 7 remaining) [2022-11-21 17:28:14,103 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 7 remaining) [2022-11-21 17:28:14,103 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 7 remaining) [2022-11-21 17:28:14,104 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 7 remaining) [2022-11-21 17:28:14,104 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-21 17:28:14,104 INFO L444 BasicCegarLoop]: Path program histogram: [10, 1, 1, 1] [2022-11-21 17:28:14,110 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-21 17:28:14,110 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-21 17:28:14,114 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.11 05:28:14 BasicIcfg [2022-11-21 17:28:14,115 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-21 17:28:14,115 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-21 17:28:14,115 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-21 17:28:14,115 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-21 17:28:14,116 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 05:28:07" (3/4) ... [2022-11-21 17:28:14,119 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-21 17:28:14,125 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2022-11-21 17:28:14,129 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2022-11-21 17:28:14,129 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2022-11-21 17:28:14,129 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-21 17:28:14,163 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81739b28-5bb1-46c5-bcf3-a3260fd5e0a6/bin/uautomizer-vX5HgA9Q3a/witness.graphml [2022-11-21 17:28:14,164 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-21 17:28:14,164 INFO L158 Benchmark]: Toolchain (without parser) took 7692.57ms. Allocated memory was 159.4MB in the beginning and 249.6MB in the end (delta: 90.2MB). Free memory was 110.1MB in the beginning and 93.9MB in the end (delta: 16.1MB). Peak memory consumption was 109.3MB. Max. memory is 16.1GB. [2022-11-21 17:28:14,165 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 159.4MB. Free memory was 100.0MB in the beginning and 99.8MB in the end (delta: 139.8kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-21 17:28:14,168 INFO L158 Benchmark]: CACSL2BoogieTranslator took 735.07ms. Allocated memory is still 159.4MB. Free memory was 109.9MB in the beginning and 82.8MB in the end (delta: 27.0MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2022-11-21 17:28:14,168 INFO L158 Benchmark]: Boogie Procedure Inliner took 46.86ms. Allocated memory is still 159.4MB. Free memory was 82.8MB in the beginning and 80.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-21 17:28:14,169 INFO L158 Benchmark]: Boogie Preprocessor took 43.10ms. Allocated memory was 159.4MB in the beginning and 207.6MB in the end (delta: 48.2MB). Free memory was 80.7MB in the beginning and 175.4MB in the end (delta: -94.7MB). Peak memory consumption was 6.8MB. Max. memory is 16.1GB. [2022-11-21 17:28:14,169 INFO L158 Benchmark]: RCFGBuilder took 549.34ms. Allocated memory is still 207.6MB. Free memory was 175.3MB in the beginning and 167.5MB in the end (delta: 7.8MB). Peak memory consumption was 10.0MB. Max. memory is 16.1GB. [2022-11-21 17:28:14,170 INFO L158 Benchmark]: TraceAbstraction took 6262.57ms. Allocated memory was 207.6MB in the beginning and 249.6MB in the end (delta: 41.9MB). Free memory was 166.4MB in the beginning and 96.0MB in the end (delta: 70.4MB). Peak memory consumption was 113.4MB. Max. memory is 16.1GB. [2022-11-21 17:28:14,170 INFO L158 Benchmark]: Witness Printer took 48.62ms. Allocated memory is still 249.6MB. Free memory was 96.0MB in the beginning and 93.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-21 17:28:14,173 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 159.4MB. Free memory was 100.0MB in the beginning and 99.8MB in the end (delta: 139.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 735.07ms. Allocated memory is still 159.4MB. Free memory was 109.9MB in the beginning and 82.8MB in the end (delta: 27.0MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 46.86ms. Allocated memory is still 159.4MB. Free memory was 82.8MB in the beginning and 80.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 43.10ms. Allocated memory was 159.4MB in the beginning and 207.6MB in the end (delta: 48.2MB). Free memory was 80.7MB in the beginning and 175.4MB in the end (delta: -94.7MB). Peak memory consumption was 6.8MB. Max. memory is 16.1GB. * RCFGBuilder took 549.34ms. Allocated memory is still 207.6MB. Free memory was 175.3MB in the beginning and 167.5MB in the end (delta: 7.8MB). Peak memory consumption was 10.0MB. Max. memory is 16.1GB. * TraceAbstraction took 6262.57ms. Allocated memory was 207.6MB in the beginning and 249.6MB in the end (delta: 41.9MB). Free memory was 166.4MB in the beginning and 96.0MB in the end (delta: 70.4MB). Peak memory consumption was 113.4MB. Max. memory is 16.1GB. * Witness Printer took 48.62ms. Allocated memory is still 249.6MB. Free memory was 96.0MB in the beginning and 93.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 921]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 921]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 921]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 921]: 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, 81 locations, 7 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 6.1s, OverallIterations: 13, TraceHistogramMax: 1, PathProgramHistogramMax: 10, EmptinessCheckTime: 0.0s, AutomataDifference: 3.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 313 SdHoareTripleChecker+Valid, 0.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 313 mSDsluCounter, 748 SdHoareTripleChecker+Invalid, 0.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 502 mSDsCounter, 41 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1086 IncrementalHoareTripleChecker+Invalid, 1127 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 41 mSolverCounterUnsat, 246 mSDtfsCounter, 1086 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 145 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 122 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1221occurred in iteration=10, InterpolantAutomatonStates: 114, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 2.3s InterpolantComputationTime, 512 NumberOfCodeBlocks, 512 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 499 ConstructedInterpolants, 0 QuantifiedInterpolants, 1347 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 13 InterpolantComputations, 13 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-11-21 17:28:14,208 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81739b28-5bb1-46c5-bcf3-a3260fd5e0a6/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE