./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/goblint-regression/04-mutex_10-ptrmunge_nr.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version b5237d83 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a150d3e8-9bb3-477d-ac39-533ae38aa884/bin/uautomizer-vX5HgA9Q3a/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a150d3e8-9bb3-477d-ac39-533ae38aa884/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_a150d3e8-9bb3-477d-ac39-533ae38aa884/bin/uautomizer-vX5HgA9Q3a/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a150d3e8-9bb3-477d-ac39-533ae38aa884/bin/uautomizer-vX5HgA9Q3a/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/04-mutex_10-ptrmunge_nr.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a150d3e8-9bb3-477d-ac39-533ae38aa884/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_a150d3e8-9bb3-477d-ac39-533ae38aa884/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 b7b2dab104eee1bd1f440bec4a0db415f1c26fa4fc41062d03a3a4935f69226f --- 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 09:13:50,016 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-21 09:13:50,019 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-21 09:13:50,066 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-21 09:13:50,066 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-21 09:13:50,071 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-21 09:13:50,074 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-21 09:13:50,079 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-21 09:13:50,082 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-21 09:13:50,088 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-21 09:13:50,090 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-21 09:13:50,092 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-21 09:13:50,093 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-21 09:13:50,096 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-21 09:13:50,099 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-21 09:13:50,101 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-21 09:13:50,103 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-21 09:13:50,104 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-21 09:13:50,106 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-21 09:13:50,114 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-21 09:13:50,116 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-21 09:13:50,119 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-21 09:13:50,121 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-21 09:13:50,122 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-21 09:13:50,134 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-21 09:13:50,135 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-21 09:13:50,135 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-21 09:13:50,137 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-21 09:13:50,138 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-21 09:13:50,139 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-21 09:13:50,140 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-21 09:13:50,141 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-21 09:13:50,144 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-21 09:13:50,145 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-21 09:13:50,147 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-21 09:13:50,147 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-21 09:13:50,148 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-21 09:13:50,149 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-21 09:13:50,149 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-21 09:13:50,150 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-21 09:13:50,151 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-21 09:13:50,152 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a150d3e8-9bb3-477d-ac39-533ae38aa884/bin/uautomizer-vX5HgA9Q3a/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-11-21 09:13:50,198 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-21 09:13:50,198 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-21 09:13:50,199 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-21 09:13:50,199 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-21 09:13:50,200 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-21 09:13:50,201 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-21 09:13:50,202 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-21 09:13:50,202 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-21 09:13:50,202 INFO L138 SettingsManager]: * Use SBE=true [2022-11-21 09:13:50,202 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-21 09:13:50,204 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-21 09:13:50,204 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-21 09:13:50,204 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-21 09:13:50,204 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-21 09:13:50,205 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-21 09:13:50,205 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-21 09:13:50,205 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-21 09:13:50,205 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-21 09:13:50,205 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-21 09:13:50,206 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-21 09:13:50,206 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-21 09:13:50,206 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-21 09:13:50,206 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-21 09:13:50,207 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-21 09:13:50,207 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-21 09:13:50,207 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-21 09:13:50,207 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 09:13:50,208 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-21 09:13:50,208 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-21 09:13:50,208 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-21 09:13:50,208 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-21 09:13:50,208 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-21 09:13:50,209 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-21 09:13:50,209 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-21 09:13:50,209 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-21 09:13:50,210 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_a150d3e8-9bb3-477d-ac39-533ae38aa884/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a150d3e8-9bb3-477d-ac39-533ae38aa884/bin/uautomizer-vX5HgA9Q3a Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b7b2dab104eee1bd1f440bec4a0db415f1c26fa4fc41062d03a3a4935f69226f [2022-11-21 09:13:50,503 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-21 09:13:50,541 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-21 09:13:50,544 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-21 09:13:50,546 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-21 09:13:50,546 INFO L275 PluginConnector]: CDTParser initialized [2022-11-21 09:13:50,548 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a150d3e8-9bb3-477d-ac39-533ae38aa884/bin/uautomizer-vX5HgA9Q3a/../../sv-benchmarks/c/goblint-regression/04-mutex_10-ptrmunge_nr.i [2022-11-21 09:13:53,668 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-21 09:13:53,977 INFO L351 CDTParser]: Found 1 translation units. [2022-11-21 09:13:53,986 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a150d3e8-9bb3-477d-ac39-533ae38aa884/sv-benchmarks/c/goblint-regression/04-mutex_10-ptrmunge_nr.i [2022-11-21 09:13:54,001 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a150d3e8-9bb3-477d-ac39-533ae38aa884/bin/uautomizer-vX5HgA9Q3a/data/7986187d4/79bea7a1ac794986b3b30f08aba01a3e/FLAGec3f15218 [2022-11-21 09:13:54,019 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a150d3e8-9bb3-477d-ac39-533ae38aa884/bin/uautomizer-vX5HgA9Q3a/data/7986187d4/79bea7a1ac794986b3b30f08aba01a3e [2022-11-21 09:13:54,022 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-21 09:13:54,024 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-21 09:13:54,025 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-21 09:13:54,026 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-21 09:13:54,030 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-21 09:13:54,031 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 09:13:54" (1/1) ... [2022-11-21 09:13:54,032 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@611f2bad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:13:54, skipping insertion in model container [2022-11-21 09:13:54,032 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 09:13:54" (1/1) ... [2022-11-21 09:13:54,042 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-21 09:13:54,083 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-21 09:13:54,620 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 09:13:54,647 INFO L203 MainTranslator]: Completed pre-run [2022-11-21 09:13:54,720 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 09:13:54,794 INFO L208 MainTranslator]: Completed translation [2022-11-21 09:13:54,796 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:13:54 WrapperNode [2022-11-21 09:13:54,796 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-21 09:13:54,797 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-21 09:13:54,798 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-21 09:13:54,798 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-21 09:13:54,806 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:13:54" (1/1) ... [2022-11-21 09:13:54,835 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:13:54" (1/1) ... [2022-11-21 09:13:54,878 INFO L138 Inliner]: procedures = 263, calls = 29, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 66 [2022-11-21 09:13:54,878 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-21 09:13:54,879 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-21 09:13:54,879 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-21 09:13:54,879 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-21 09:13:54,889 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:13:54" (1/1) ... [2022-11-21 09:13:54,890 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:13:54" (1/1) ... [2022-11-21 09:13:54,904 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:13:54" (1/1) ... [2022-11-21 09:13:54,906 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:13:54" (1/1) ... [2022-11-21 09:13:54,911 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:13:54" (1/1) ... [2022-11-21 09:13:54,912 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:13:54" (1/1) ... [2022-11-21 09:13:54,914 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:13:54" (1/1) ... [2022-11-21 09:13:54,915 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:13:54" (1/1) ... [2022-11-21 09:13:54,918 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-21 09:13:54,931 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-21 09:13:54,931 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-21 09:13:54,931 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-21 09:13:54,932 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:13:54" (1/1) ... [2022-11-21 09:13:54,940 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 09:13:54,954 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a150d3e8-9bb3-477d-ac39-533ae38aa884/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 09:13:54,972 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a150d3e8-9bb3-477d-ac39-533ae38aa884/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-21 09:13:54,998 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a150d3e8-9bb3-477d-ac39-533ae38aa884/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-21 09:13:55,025 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-21 09:13:55,025 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-21 09:13:55,025 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-21 09:13:55,025 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-21 09:13:55,025 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-21 09:13:55,025 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-21 09:13:55,046 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-11-21 09:13:55,046 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-11-21 09:13:55,047 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-21 09:13:55,047 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-21 09:13:55,047 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-21 09:13:55,049 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 09:13:55,216 INFO L235 CfgBuilder]: Building ICFG [2022-11-21 09:13:55,219 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-21 09:13:55,461 INFO L276 CfgBuilder]: Performing block encoding [2022-11-21 09:13:55,468 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-21 09:13:55,468 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-21 09:13:55,474 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 09:13:55 BoogieIcfgContainer [2022-11-21 09:13:55,474 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-21 09:13:55,476 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-21 09:13:55,477 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-21 09:13:55,480 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-21 09:13:55,481 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 09:13:54" (1/3) ... [2022-11-21 09:13:55,482 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56178376 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 09:13:55, skipping insertion in model container [2022-11-21 09:13:55,482 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:13:54" (2/3) ... [2022-11-21 09:13:55,482 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56178376 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 09:13:55, skipping insertion in model container [2022-11-21 09:13:55,482 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 09:13:55" (3/3) ... [2022-11-21 09:13:55,484 INFO L112 eAbstractionObserver]: Analyzing ICFG 04-mutex_10-ptrmunge_nr.i [2022-11-21 09:13:55,495 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-21 09:13:55,507 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-21 09:13:55,508 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2022-11-21 09:13:55,508 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-21 09:13:55,581 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-11-21 09:13:55,632 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 84 places, 80 transitions, 168 flow [2022-11-21 09:13:55,680 INFO L130 PetriNetUnfolder]: 0/79 cut-off events. [2022-11-21 09:13:55,680 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-21 09:13:55,684 INFO L83 FinitePrefix]: Finished finitePrefix Result has 84 conditions, 79 events. 0/79 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 46 event pairs, 0 based on Foata normal form. 0/75 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2022-11-21 09:13:55,684 INFO L82 GeneralOperation]: Start removeDead. Operand has 84 places, 80 transitions, 168 flow [2022-11-21 09:13:55,689 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 75 places, 71 transitions, 145 flow [2022-11-21 09:13:55,698 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-21 09:13:55,705 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;@4fe188ff, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-21 09:13:55,706 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2022-11-21 09:13:55,724 INFO L130 PetriNetUnfolder]: 0/51 cut-off events. [2022-11-21 09:13:55,724 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-21 09:13:55,725 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 09:13:55,725 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 09:13:55,726 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 09:13:55,731 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 09:13:55,732 INFO L85 PathProgramCache]: Analyzing trace with hash -1761973742, now seen corresponding path program 1 times [2022-11-21 09:13:55,741 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 09:13:55,741 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [852505939] [2022-11-21 09:13:55,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 09:13:55,742 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 09:13:55,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:13:56,809 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 09:13:56,810 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 09:13:56,811 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [852505939] [2022-11-21 09:13:56,813 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [852505939] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 09:13:56,813 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 09:13:56,813 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-21 09:13:56,815 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1445761785] [2022-11-21 09:13:56,816 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 09:13:56,827 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-21 09:13:56,827 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 09:13:56,878 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-21 09:13:56,880 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2022-11-21 09:13:56,887 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 46 out of 80 [2022-11-21 09:13:56,890 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 75 places, 71 transitions, 145 flow. Second operand has 10 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 09:13:56,890 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 09:13:56,891 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 46 of 80 [2022-11-21 09:13:56,892 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 09:13:57,242 INFO L130 PetriNetUnfolder]: 30/173 cut-off events. [2022-11-21 09:13:57,242 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-21 09:13:57,244 INFO L83 FinitePrefix]: Finished finitePrefix Result has 273 conditions, 173 events. 30/173 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 631 event pairs, 7 based on Foata normal form. 0/160 useless extension candidates. Maximal degree in co-relation 217. Up to 42 conditions per place. [2022-11-21 09:13:57,247 INFO L137 encePairwiseOnDemand]: 68/80 looper letters, 31 selfloop transitions, 12 changer transitions 10/93 dead transitions. [2022-11-21 09:13:57,247 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 84 places, 93 transitions, 295 flow [2022-11-21 09:13:57,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-21 09:13:57,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-11-21 09:13:57,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 517 transitions. [2022-11-21 09:13:57,267 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.64625 [2022-11-21 09:13:57,268 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 517 transitions. [2022-11-21 09:13:57,268 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 517 transitions. [2022-11-21 09:13:57,271 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 09:13:57,274 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 517 transitions. [2022-11-21 09:13:57,279 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 51.7) internal successors, (517), 10 states have internal predecessors, (517), 0 states have call successors, (0), 0 states 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 09:13:57,287 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 80.0) internal successors, (880), 11 states have internal predecessors, (880), 0 states have call successors, (0), 0 states 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 09:13:57,288 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 80.0) internal successors, (880), 11 states have internal predecessors, (880), 0 states have call successors, (0), 0 states 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 09:13:57,291 INFO L175 Difference]: Start difference. First operand has 75 places, 71 transitions, 145 flow. Second operand 10 states and 517 transitions. [2022-11-21 09:13:57,292 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 84 places, 93 transitions, 295 flow [2022-11-21 09:13:57,295 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 83 places, 93 transitions, 294 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-21 09:13:57,299 INFO L231 Difference]: Finished difference. Result has 88 places, 76 transitions, 205 flow [2022-11-21 09:13:57,302 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=80, PETRI_DIFFERENCE_MINUEND_FLOW=144, PETRI_DIFFERENCE_MINUEND_PLACES=74, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=71, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=61, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=205, PETRI_PLACES=88, PETRI_TRANSITIONS=76} [2022-11-21 09:13:57,306 INFO L288 CegarLoopForPetriNet]: 75 programPoint places, 13 predicate places. [2022-11-21 09:13:57,307 INFO L495 AbstractCegarLoop]: Abstraction has has 88 places, 76 transitions, 205 flow [2022-11-21 09:13:57,307 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 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 09:13:57,307 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 09:13:57,308 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 09:13:57,308 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-21 09:13:57,309 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 09:13:57,310 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 09:13:57,310 INFO L85 PathProgramCache]: Analyzing trace with hash 831420745, now seen corresponding path program 1 times [2022-11-21 09:13:57,310 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 09:13:57,311 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1855049916] [2022-11-21 09:13:57,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 09:13:57,311 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 09:13:57,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:13:57,710 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 09:13:57,710 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 09:13:57,711 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1855049916] [2022-11-21 09:13:57,711 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1855049916] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 09:13:57,711 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 09:13:57,712 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-21 09:13:57,713 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1518527288] [2022-11-21 09:13:57,713 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 09:13:57,716 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-21 09:13:57,717 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 09:13:57,722 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-21 09:13:57,723 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2022-11-21 09:13:57,726 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 42 out of 80 [2022-11-21 09:13:57,727 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 88 places, 76 transitions, 205 flow. Second operand has 10 states, 10 states have (on average 44.7) internal successors, (447), 10 states have internal predecessors, (447), 0 states have call successors, (0), 0 states 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 09:13:57,727 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 09:13:57,728 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 42 of 80 [2022-11-21 09:13:57,729 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 09:13:58,092 INFO L130 PetriNetUnfolder]: 15/153 cut-off events. [2022-11-21 09:13:58,092 INFO L131 PetriNetUnfolder]: For 49/52 co-relation queries the response was YES. [2022-11-21 09:13:58,102 INFO L83 FinitePrefix]: Finished finitePrefix Result has 300 conditions, 153 events. 15/153 cut-off events. For 49/52 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 527 event pairs, 1 based on Foata normal form. 3/152 useless extension candidates. Maximal degree in co-relation 231. Up to 23 conditions per place. [2022-11-21 09:13:58,104 INFO L137 encePairwiseOnDemand]: 68/80 looper letters, 34 selfloop transitions, 14 changer transitions 5/91 dead transitions. [2022-11-21 09:13:58,104 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 97 places, 91 transitions, 367 flow [2022-11-21 09:13:58,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-21 09:13:58,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-11-21 09:13:58,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 475 transitions. [2022-11-21 09:13:58,109 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.59375 [2022-11-21 09:13:58,109 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 475 transitions. [2022-11-21 09:13:58,109 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 475 transitions. [2022-11-21 09:13:58,109 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 09:13:58,110 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 475 transitions. [2022-11-21 09:13:58,112 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 47.5) internal successors, (475), 10 states have internal predecessors, (475), 0 states have call successors, (0), 0 states 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 09:13:58,115 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 80.0) internal successors, (880), 11 states have internal predecessors, (880), 0 states have call successors, (0), 0 states 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 09:13:58,116 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 80.0) internal successors, (880), 11 states have internal predecessors, (880), 0 states have call successors, (0), 0 states 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 09:13:58,116 INFO L175 Difference]: Start difference. First operand has 88 places, 76 transitions, 205 flow. Second operand 10 states and 475 transitions. [2022-11-21 09:13:58,116 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 97 places, 91 transitions, 367 flow [2022-11-21 09:13:58,120 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 91 places, 91 transitions, 342 flow, removed 2 selfloop flow, removed 6 redundant places. [2022-11-21 09:13:58,123 INFO L231 Difference]: Finished difference. Result has 96 places, 81 transitions, 259 flow [2022-11-21 09:13:58,123 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=80, PETRI_DIFFERENCE_MINUEND_FLOW=186, PETRI_DIFFERENCE_MINUEND_PLACES=82, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=76, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=64, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=259, PETRI_PLACES=96, PETRI_TRANSITIONS=81} [2022-11-21 09:13:58,124 INFO L288 CegarLoopForPetriNet]: 75 programPoint places, 21 predicate places. [2022-11-21 09:13:58,124 INFO L495 AbstractCegarLoop]: Abstraction has has 96 places, 81 transitions, 259 flow [2022-11-21 09:13:58,124 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 44.7) internal successors, (447), 10 states have internal predecessors, (447), 0 states have call successors, (0), 0 states 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 09:13:58,125 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 09:13:58,125 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 09:13:58,125 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-21 09:13:58,126 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 09:13:58,129 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 09:13:58,129 INFO L85 PathProgramCache]: Analyzing trace with hash 1309010650, now seen corresponding path program 1 times [2022-11-21 09:13:58,129 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 09:13:58,129 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [109258340] [2022-11-21 09:13:58,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 09:13:58,130 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 09:13:58,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:13:58,820 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 09:13:58,820 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 09:13:58,820 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [109258340] [2022-11-21 09:13:58,821 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [109258340] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 09:13:58,822 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 09:13:58,823 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-21 09:13:58,823 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1443174437] [2022-11-21 09:13:58,823 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 09:13:58,824 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-21 09:13:58,824 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 09:13:58,825 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-21 09:13:58,826 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2022-11-21 09:13:58,827 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 38 out of 80 [2022-11-21 09:13:58,828 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 96 places, 81 transitions, 259 flow. Second operand has 14 states, 14 states have (on average 40.357142857142854) internal successors, (565), 14 states have internal predecessors, (565), 0 states have call successors, (0), 0 states 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 09:13:58,829 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 09:13:58,829 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 38 of 80 [2022-11-21 09:13:58,829 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 09:13:59,533 INFO L130 PetriNetUnfolder]: 46/255 cut-off events. [2022-11-21 09:13:59,534 INFO L131 PetriNetUnfolder]: For 191/193 co-relation queries the response was YES. [2022-11-21 09:13:59,538 INFO L83 FinitePrefix]: Finished finitePrefix Result has 586 conditions, 255 events. 46/255 cut-off events. For 191/193 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 1190 event pairs, 3 based on Foata normal form. 4/259 useless extension candidates. Maximal degree in co-relation 511. Up to 35 conditions per place. [2022-11-21 09:13:59,539 INFO L137 encePairwiseOnDemand]: 66/80 looper letters, 53 selfloop transitions, 15 changer transitions 9/109 dead transitions. [2022-11-21 09:13:59,539 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 108 places, 109 transitions, 538 flow [2022-11-21 09:13:59,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-21 09:13:59,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-11-21 09:13:59,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 566 transitions. [2022-11-21 09:13:59,542 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5442307692307692 [2022-11-21 09:13:59,543 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 566 transitions. [2022-11-21 09:13:59,543 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 566 transitions. [2022-11-21 09:13:59,544 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 09:13:59,544 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 566 transitions. [2022-11-21 09:13:59,546 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 43.53846153846154) internal successors, (566), 13 states have internal predecessors, (566), 0 states have call successors, (0), 0 states 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 09:13:59,549 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 80.0) internal successors, (1120), 14 states have internal predecessors, (1120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 09:13:59,550 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 80.0) internal successors, (1120), 14 states have internal predecessors, (1120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 09:13:59,550 INFO L175 Difference]: Start difference. First operand has 96 places, 81 transitions, 259 flow. Second operand 13 states and 566 transitions. [2022-11-21 09:13:59,550 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 108 places, 109 transitions, 538 flow [2022-11-21 09:13:59,557 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 102 places, 109 transitions, 508 flow, removed 2 selfloop flow, removed 6 redundant places. [2022-11-21 09:13:59,559 INFO L231 Difference]: Finished difference. Result has 107 places, 84 transitions, 309 flow [2022-11-21 09:13:59,559 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=80, PETRI_DIFFERENCE_MINUEND_FLOW=236, PETRI_DIFFERENCE_MINUEND_PLACES=90, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=81, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=67, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=309, PETRI_PLACES=107, PETRI_TRANSITIONS=84} [2022-11-21 09:13:59,561 INFO L288 CegarLoopForPetriNet]: 75 programPoint places, 32 predicate places. [2022-11-21 09:13:59,561 INFO L495 AbstractCegarLoop]: Abstraction has has 107 places, 84 transitions, 309 flow [2022-11-21 09:13:59,562 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 40.357142857142854) internal successors, (565), 14 states have internal predecessors, (565), 0 states have call successors, (0), 0 states 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 09:13:59,562 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 09:13:59,562 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 09:13:59,562 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-21 09:13:59,563 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 09:13:59,564 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 09:13:59,565 INFO L85 PathProgramCache]: Analyzing trace with hash -1120105136, now seen corresponding path program 2 times [2022-11-21 09:13:59,565 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 09:13:59,565 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [767797668] [2022-11-21 09:13:59,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 09:13:59,566 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 09:13:59,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:14:00,059 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 09:14:00,060 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 09:14:00,060 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [767797668] [2022-11-21 09:14:00,060 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [767797668] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 09:14:00,060 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 09:14:00,060 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-21 09:14:00,061 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1600967083] [2022-11-21 09:14:00,061 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 09:14:00,061 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-21 09:14:00,061 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 09:14:00,062 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-21 09:14:00,062 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2022-11-21 09:14:00,064 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 38 out of 80 [2022-11-21 09:14:00,065 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 107 places, 84 transitions, 309 flow. Second operand has 14 states, 14 states have (on average 40.357142857142854) internal successors, (565), 14 states have internal predecessors, (565), 0 states have call successors, (0), 0 states 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 09:14:00,065 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 09:14:00,065 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 38 of 80 [2022-11-21 09:14:00,065 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 09:14:00,975 INFO L130 PetriNetUnfolder]: 55/289 cut-off events. [2022-11-21 09:14:00,975 INFO L131 PetriNetUnfolder]: For 420/422 co-relation queries the response was YES. [2022-11-21 09:14:00,976 INFO L83 FinitePrefix]: Finished finitePrefix Result has 723 conditions, 289 events. 55/289 cut-off events. For 420/422 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 1447 event pairs, 2 based on Foata normal form. 4/293 useless extension candidates. Maximal degree in co-relation 644. Up to 35 conditions per place. [2022-11-21 09:14:00,977 INFO L137 encePairwiseOnDemand]: 65/80 looper letters, 54 selfloop transitions, 27 changer transitions 9/122 dead transitions. [2022-11-21 09:14:00,978 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 123 places, 122 transitions, 677 flow [2022-11-21 09:14:00,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-11-21 09:14:00,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2022-11-21 09:14:00,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 731 transitions. [2022-11-21 09:14:00,981 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5375 [2022-11-21 09:14:00,981 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 731 transitions. [2022-11-21 09:14:00,981 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 731 transitions. [2022-11-21 09:14:00,982 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 09:14:00,982 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 731 transitions. [2022-11-21 09:14:00,984 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 43.0) internal successors, (731), 17 states have internal predecessors, (731), 0 states have call successors, (0), 0 states 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 09:14:00,986 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 80.0) internal successors, (1440), 18 states have internal predecessors, (1440), 0 states have call successors, (0), 0 states 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 09:14:00,988 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 80.0) internal successors, (1440), 18 states have internal predecessors, (1440), 0 states have call successors, (0), 0 states 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 09:14:00,992 INFO L175 Difference]: Start difference. First operand has 107 places, 84 transitions, 309 flow. Second operand 17 states and 731 transitions. [2022-11-21 09:14:00,992 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 123 places, 122 transitions, 677 flow [2022-11-21 09:14:00,998 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 113 places, 122 transitions, 632 flow, removed 2 selfloop flow, removed 10 redundant places. [2022-11-21 09:14:01,001 INFO L231 Difference]: Finished difference. Result has 119 places, 92 transitions, 424 flow [2022-11-21 09:14:01,002 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=80, PETRI_DIFFERENCE_MINUEND_FLOW=278, PETRI_DIFFERENCE_MINUEND_PLACES=97, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=84, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=19, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=63, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=424, PETRI_PLACES=119, PETRI_TRANSITIONS=92} [2022-11-21 09:14:01,003 INFO L288 CegarLoopForPetriNet]: 75 programPoint places, 44 predicate places. [2022-11-21 09:14:01,004 INFO L495 AbstractCegarLoop]: Abstraction has has 119 places, 92 transitions, 424 flow [2022-11-21 09:14:01,005 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 40.357142857142854) internal successors, (565), 14 states have internal predecessors, (565), 0 states have call successors, (0), 0 states 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 09:14:01,006 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 09:14:01,007 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 09:14:01,008 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-21 09:14:01,008 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-21 09:14:01,008 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 09:14:01,009 INFO L85 PathProgramCache]: Analyzing trace with hash 446887880, now seen corresponding path program 1 times [2022-11-21 09:14:01,009 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 09:14:01,010 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [414084794] [2022-11-21 09:14:01,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 09:14:01,010 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 09:14:01,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:14:01,487 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 09:14:01,488 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 09:14:01,488 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [414084794] [2022-11-21 09:14:01,488 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [414084794] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 09:14:01,488 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 09:14:01,488 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-21 09:14:01,489 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1239394076] [2022-11-21 09:14:01,489 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 09:14:01,489 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-21 09:14:01,489 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 09:14:01,490 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-21 09:14:01,490 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2022-11-21 09:14:01,492 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 42 out of 80 [2022-11-21 09:14:01,493 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 119 places, 92 transitions, 424 flow. Second operand has 14 states, 14 states have (on average 44.07142857142857) internal successors, (617), 14 states have internal predecessors, (617), 0 states have call successors, (0), 0 states 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 09:14:01,493 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 09:14:01,493 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 42 of 80 [2022-11-21 09:14:01,493 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 09:14:02,603 INFO L130 PetriNetUnfolder]: 84/370 cut-off events. [2022-11-21 09:14:02,603 INFO L131 PetriNetUnfolder]: For 1097/1101 co-relation queries the response was YES. [2022-11-21 09:14:02,605 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1108 conditions, 370 events. 84/370 cut-off events. For 1097/1101 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 2052 event pairs, 8 based on Foata normal form. 8/376 useless extension candidates. Maximal degree in co-relation 1082. Up to 53 conditions per place. [2022-11-21 09:14:02,606 INFO L137 encePairwiseOnDemand]: 65/80 looper letters, 60 selfloop transitions, 33 changer transitions 20/150 dead transitions. [2022-11-21 09:14:02,607 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 136 places, 150 transitions, 1036 flow [2022-11-21 09:14:02,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-21 09:14:02,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2022-11-21 09:14:02,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 943 transitions. [2022-11-21 09:14:02,611 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.589375 [2022-11-21 09:14:02,611 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 943 transitions. [2022-11-21 09:14:02,611 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 943 transitions. [2022-11-21 09:14:02,612 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 09:14:02,612 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 943 transitions. [2022-11-21 09:14:02,616 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 47.15) internal successors, (943), 20 states have internal predecessors, (943), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 09:14:02,620 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 80.0) internal successors, (1680), 21 states have internal predecessors, (1680), 0 states have call successors, (0), 0 states 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 09:14:02,621 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 80.0) internal successors, (1680), 21 states have internal predecessors, (1680), 0 states have call successors, (0), 0 states 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 09:14:02,621 INFO L175 Difference]: Start difference. First operand has 119 places, 92 transitions, 424 flow. Second operand 20 states and 943 transitions. [2022-11-21 09:14:02,621 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 136 places, 150 transitions, 1036 flow [2022-11-21 09:14:02,625 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 124 places, 150 transitions, 922 flow, removed 7 selfloop flow, removed 12 redundant places. [2022-11-21 09:14:02,628 INFO L231 Difference]: Finished difference. Result has 129 places, 103 transitions, 547 flow [2022-11-21 09:14:02,628 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=80, PETRI_DIFFERENCE_MINUEND_FLOW=368, PETRI_DIFFERENCE_MINUEND_PLACES=105, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=92, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=68, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=547, PETRI_PLACES=129, PETRI_TRANSITIONS=103} [2022-11-21 09:14:02,631 INFO L288 CegarLoopForPetriNet]: 75 programPoint places, 54 predicate places. [2022-11-21 09:14:02,632 INFO L495 AbstractCegarLoop]: Abstraction has has 129 places, 103 transitions, 547 flow [2022-11-21 09:14:02,632 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 44.07142857142857) internal successors, (617), 14 states have internal predecessors, (617), 0 states have call successors, (0), 0 states 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 09:14:02,632 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 09:14:02,633 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 09:14:02,633 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-21 09:14:02,633 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 09:14:02,635 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 09:14:02,635 INFO L85 PathProgramCache]: Analyzing trace with hash -134204114, now seen corresponding path program 3 times [2022-11-21 09:14:02,635 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 09:14:02,636 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1474793611] [2022-11-21 09:14:02,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 09:14:02,636 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 09:14:02,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:14:03,132 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 09:14:03,133 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 09:14:03,133 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1474793611] [2022-11-21 09:14:03,133 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1474793611] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 09:14:03,134 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 09:14:03,134 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-21 09:14:03,134 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1642270059] [2022-11-21 09:14:03,134 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 09:14:03,135 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-21 09:14:03,135 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 09:14:03,135 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-21 09:14:03,136 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2022-11-21 09:14:03,137 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 38 out of 80 [2022-11-21 09:14:03,138 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 129 places, 103 transitions, 547 flow. Second operand has 14 states, 14 states have (on average 40.357142857142854) internal successors, (565), 14 states have internal predecessors, (565), 0 states have call successors, (0), 0 states 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 09:14:03,138 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 09:14:03,138 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 38 of 80 [2022-11-21 09:14:03,138 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 09:14:04,164 INFO L130 PetriNetUnfolder]: 74/343 cut-off events. [2022-11-21 09:14:04,164 INFO L131 PetriNetUnfolder]: For 1127/1131 co-relation queries the response was YES. [2022-11-21 09:14:04,166 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1085 conditions, 343 events. 74/343 cut-off events. For 1127/1131 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 1828 event pairs, 6 based on Foata normal form. 6/347 useless extension candidates. Maximal degree in co-relation 1050. Up to 36 conditions per place. [2022-11-21 09:14:04,168 INFO L137 encePairwiseOnDemand]: 65/80 looper letters, 65 selfloop transitions, 40 changer transitions 13/150 dead transitions. [2022-11-21 09:14:04,168 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 145 places, 150 transitions, 1072 flow [2022-11-21 09:14:04,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-21 09:14:04,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2022-11-21 09:14:04,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 864 transitions. [2022-11-21 09:14:04,172 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.54 [2022-11-21 09:14:04,172 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 864 transitions. [2022-11-21 09:14:04,172 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 864 transitions. [2022-11-21 09:14:04,173 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 09:14:04,173 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 864 transitions. [2022-11-21 09:14:04,176 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 43.2) internal successors, (864), 20 states have internal predecessors, (864), 0 states have call successors, (0), 0 states 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 09:14:04,180 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 80.0) internal successors, (1680), 21 states have internal predecessors, (1680), 0 states have call successors, (0), 0 states 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 09:14:04,181 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 80.0) internal successors, (1680), 21 states have internal predecessors, (1680), 0 states have call successors, (0), 0 states 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 09:14:04,181 INFO L175 Difference]: Start difference. First operand has 129 places, 103 transitions, 547 flow. Second operand 20 states and 864 transitions. [2022-11-21 09:14:04,182 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 145 places, 150 transitions, 1072 flow [2022-11-21 09:14:04,187 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 131 places, 150 transitions, 930 flow, removed 16 selfloop flow, removed 14 redundant places. [2022-11-21 09:14:04,193 INFO L231 Difference]: Finished difference. Result has 136 places, 110 transitions, 644 flow [2022-11-21 09:14:04,193 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=80, PETRI_DIFFERENCE_MINUEND_FLOW=459, PETRI_DIFFERENCE_MINUEND_PLACES=112, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=103, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=33, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=68, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=644, PETRI_PLACES=136, PETRI_TRANSITIONS=110} [2022-11-21 09:14:04,197 INFO L288 CegarLoopForPetriNet]: 75 programPoint places, 61 predicate places. [2022-11-21 09:14:04,198 INFO L495 AbstractCegarLoop]: Abstraction has has 136 places, 110 transitions, 644 flow [2022-11-21 09:14:04,198 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 40.357142857142854) internal successors, (565), 14 states have internal predecessors, (565), 0 states have call successors, (0), 0 states 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 09:14:04,198 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 09:14:04,199 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 09:14:04,199 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-21 09:14:04,199 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-21 09:14:04,200 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 09:14:04,200 INFO L85 PathProgramCache]: Analyzing trace with hash -2102677918, now seen corresponding path program 2 times [2022-11-21 09:14:04,200 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 09:14:04,200 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1401716598] [2022-11-21 09:14:04,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 09:14:04,201 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 09:14:04,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:14:04,727 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 09:14:04,727 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 09:14:04,727 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1401716598] [2022-11-21 09:14:04,727 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1401716598] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 09:14:04,727 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 09:14:04,727 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-21 09:14:04,728 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [649136433] [2022-11-21 09:14:04,728 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 09:14:04,728 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-21 09:14:04,728 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 09:14:04,729 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-21 09:14:04,729 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-11-21 09:14:04,730 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 42 out of 80 [2022-11-21 09:14:04,731 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 136 places, 110 transitions, 644 flow. Second operand has 14 states, 14 states have (on average 44.07142857142857) internal successors, (617), 14 states have internal predecessors, (617), 0 states have call successors, (0), 0 states 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 09:14:04,731 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 09:14:04,731 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 42 of 80 [2022-11-21 09:14:04,731 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 09:14:05,827 INFO L130 PetriNetUnfolder]: 78/365 cut-off events. [2022-11-21 09:14:05,828 INFO L131 PetriNetUnfolder]: For 1202/1208 co-relation queries the response was YES. [2022-11-21 09:14:05,829 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1126 conditions, 365 events. 78/365 cut-off events. For 1202/1208 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 2018 event pairs, 15 based on Foata normal form. 10/371 useless extension candidates. Maximal degree in co-relation 1094. Up to 42 conditions per place. [2022-11-21 09:14:05,832 INFO L137 encePairwiseOnDemand]: 65/80 looper letters, 63 selfloop transitions, 39 changer transitions 19/158 dead transitions. [2022-11-21 09:14:05,833 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 155 places, 158 transitions, 1142 flow [2022-11-21 09:14:05,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-11-21 09:14:05,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2022-11-21 09:14:05,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 1029 transitions. [2022-11-21 09:14:05,839 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.584659090909091 [2022-11-21 09:14:05,839 INFO L72 ComplementDD]: Start complementDD. Operand 22 states and 1029 transitions. [2022-11-21 09:14:05,839 INFO L73 IsDeterministic]: Start isDeterministic. Operand 22 states and 1029 transitions. [2022-11-21 09:14:05,841 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 09:14:05,841 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 22 states and 1029 transitions. [2022-11-21 09:14:05,846 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 23 states, 22 states have (on average 46.77272727272727) internal successors, (1029), 22 states have internal predecessors, (1029), 0 states have call successors, (0), 0 states 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 09:14:05,851 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 23 states, 23 states have (on average 80.0) internal successors, (1840), 23 states have internal predecessors, (1840), 0 states have call successors, (0), 0 states 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 09:14:05,852 INFO L81 ComplementDD]: Finished complementDD. Result has 23 states, 23 states have (on average 80.0) internal successors, (1840), 23 states have internal predecessors, (1840), 0 states have call successors, (0), 0 states 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 09:14:05,852 INFO L175 Difference]: Start difference. First operand has 136 places, 110 transitions, 644 flow. Second operand 22 states and 1029 transitions. [2022-11-21 09:14:05,852 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 155 places, 158 transitions, 1142 flow [2022-11-21 09:14:05,858 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 141 places, 158 transitions, 996 flow, removed 24 selfloop flow, removed 14 redundant places. [2022-11-21 09:14:05,861 INFO L231 Difference]: Finished difference. Result has 145 places, 111 transitions, 648 flow [2022-11-21 09:14:05,862 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=80, PETRI_DIFFERENCE_MINUEND_FLOW=542, PETRI_DIFFERENCE_MINUEND_PLACES=120, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=110, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=36, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=73, PETRI_DIFFERENCE_SUBTRAHEND_STATES=22, PETRI_FLOW=648, PETRI_PLACES=145, PETRI_TRANSITIONS=111} [2022-11-21 09:14:05,862 INFO L288 CegarLoopForPetriNet]: 75 programPoint places, 70 predicate places. [2022-11-21 09:14:05,863 INFO L495 AbstractCegarLoop]: Abstraction has has 145 places, 111 transitions, 648 flow [2022-11-21 09:14:05,863 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 44.07142857142857) internal successors, (617), 14 states have internal predecessors, (617), 0 states have call successors, (0), 0 states 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 09:14:05,863 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 09:14:05,864 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 09:14:05,864 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-21 09:14:05,865 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 09:14:05,865 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 09:14:05,866 INFO L85 PathProgramCache]: Analyzing trace with hash 1823505572, now seen corresponding path program 4 times [2022-11-21 09:14:05,866 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 09:14:05,866 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [365944203] [2022-11-21 09:14:05,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 09:14:05,867 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 09:14:05,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:14:06,328 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 09:14:06,329 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 09:14:06,329 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [365944203] [2022-11-21 09:14:06,329 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [365944203] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 09:14:06,330 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 09:14:06,330 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-21 09:14:06,330 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [502213276] [2022-11-21 09:14:06,330 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 09:14:06,331 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-21 09:14:06,331 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 09:14:06,331 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-21 09:14:06,332 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2022-11-21 09:14:06,333 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 38 out of 80 [2022-11-21 09:14:06,333 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 145 places, 111 transitions, 648 flow. Second operand has 14 states, 14 states have (on average 40.357142857142854) internal successors, (565), 14 states have internal predecessors, (565), 0 states have call successors, (0), 0 states 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 09:14:06,334 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 09:14:06,334 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 38 of 80 [2022-11-21 09:14:06,334 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 09:14:07,333 INFO L130 PetriNetUnfolder]: 69/372 cut-off events. [2022-11-21 09:14:07,333 INFO L131 PetriNetUnfolder]: For 1030/1036 co-relation queries the response was YES. [2022-11-21 09:14:07,335 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1111 conditions, 372 events. 69/372 cut-off events. For 1030/1036 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 2116 event pairs, 20 based on Foata normal form. 4/374 useless extension candidates. Maximal degree in co-relation 1059. Up to 82 conditions per place. [2022-11-21 09:14:07,337 INFO L137 encePairwiseOnDemand]: 65/80 looper letters, 62 selfloop transitions, 26 changer transitions 26/146 dead transitions. [2022-11-21 09:14:07,337 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 162 places, 146 transitions, 1006 flow [2022-11-21 09:14:07,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-21 09:14:07,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2022-11-21 09:14:07,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 857 transitions. [2022-11-21 09:14:07,341 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.535625 [2022-11-21 09:14:07,342 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 857 transitions. [2022-11-21 09:14:07,342 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 857 transitions. [2022-11-21 09:14:07,343 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 09:14:07,343 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 857 transitions. [2022-11-21 09:14:07,348 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 42.85) internal successors, (857), 20 states have internal predecessors, (857), 0 states have call successors, (0), 0 states 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 09:14:07,352 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 80.0) internal successors, (1680), 21 states have internal predecessors, (1680), 0 states have call successors, (0), 0 states 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 09:14:07,353 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 80.0) internal successors, (1680), 21 states have internal predecessors, (1680), 0 states have call successors, (0), 0 states 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 09:14:07,353 INFO L175 Difference]: Start difference. First operand has 145 places, 111 transitions, 648 flow. Second operand 20 states and 857 transitions. [2022-11-21 09:14:07,353 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 162 places, 146 transitions, 1006 flow [2022-11-21 09:14:07,365 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 145 places, 146 transitions, 917 flow, removed 8 selfloop flow, removed 17 redundant places. [2022-11-21 09:14:07,368 INFO L231 Difference]: Finished difference. Result has 151 places, 104 transitions, 575 flow [2022-11-21 09:14:07,369 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=80, PETRI_DIFFERENCE_MINUEND_FLOW=565, PETRI_DIFFERENCE_MINUEND_PLACES=126, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=111, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=26, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=85, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=575, PETRI_PLACES=151, PETRI_TRANSITIONS=104} [2022-11-21 09:14:07,371 INFO L288 CegarLoopForPetriNet]: 75 programPoint places, 76 predicate places. [2022-11-21 09:14:07,372 INFO L495 AbstractCegarLoop]: Abstraction has has 151 places, 104 transitions, 575 flow [2022-11-21 09:14:07,372 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 40.357142857142854) internal successors, (565), 14 states have internal predecessors, (565), 0 states have call successors, (0), 0 states 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 09:14:07,372 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 09:14:07,373 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 09:14:07,373 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-21 09:14:07,373 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 09:14:07,374 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 09:14:07,374 INFO L85 PathProgramCache]: Analyzing trace with hash 506440784, now seen corresponding path program 5 times [2022-11-21 09:14:07,375 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 09:14:07,375 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [947809435] [2022-11-21 09:14:07,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 09:14:07,375 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 09:14:07,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:14:07,798 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 09:14:07,799 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 09:14:07,799 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [947809435] [2022-11-21 09:14:07,799 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [947809435] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 09:14:07,799 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 09:14:07,799 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-21 09:14:07,800 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [693450649] [2022-11-21 09:14:07,800 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 09:14:07,800 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-21 09:14:07,800 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 09:14:07,801 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-21 09:14:07,801 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2022-11-21 09:14:07,802 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 38 out of 80 [2022-11-21 09:14:07,802 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 151 places, 104 transitions, 575 flow. Second operand has 14 states, 14 states have (on average 40.357142857142854) internal successors, (565), 14 states have internal predecessors, (565), 0 states have call successors, (0), 0 states 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 09:14:07,802 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 09:14:07,803 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 38 of 80 [2022-11-21 09:14:07,803 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 09:14:08,499 INFO L130 PetriNetUnfolder]: 52/296 cut-off events. [2022-11-21 09:14:08,500 INFO L131 PetriNetUnfolder]: For 745/751 co-relation queries the response was YES. [2022-11-21 09:14:08,501 INFO L83 FinitePrefix]: Finished finitePrefix Result has 848 conditions, 296 events. 52/296 cut-off events. For 745/751 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 1477 event pairs, 20 based on Foata normal form. 4/298 useless extension candidates. Maximal degree in co-relation 809. Up to 82 conditions per place. [2022-11-21 09:14:08,503 INFO L137 encePairwiseOnDemand]: 65/80 looper letters, 55 selfloop transitions, 22 changer transitions 11/120 dead transitions. [2022-11-21 09:14:08,503 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 156 places, 120 transitions, 789 flow [2022-11-21 09:14:08,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-21 09:14:08,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2022-11-21 09:14:08,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 643 transitions. [2022-11-21 09:14:08,505 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5358333333333334 [2022-11-21 09:14:08,505 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 643 transitions. [2022-11-21 09:14:08,505 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 643 transitions. [2022-11-21 09:14:08,506 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 09:14:08,506 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 643 transitions. [2022-11-21 09:14:08,507 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 42.86666666666667) internal successors, (643), 15 states have internal predecessors, (643), 0 states have call successors, (0), 0 states 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 09:14:08,509 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 80.0) internal successors, (1280), 16 states have internal predecessors, (1280), 0 states have call successors, (0), 0 states 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 09:14:08,510 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 80.0) internal successors, (1280), 16 states have internal predecessors, (1280), 0 states have call successors, (0), 0 states 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 09:14:08,510 INFO L175 Difference]: Start difference. First operand has 151 places, 104 transitions, 575 flow. Second operand 15 states and 643 transitions. [2022-11-21 09:14:08,510 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 156 places, 120 transitions, 789 flow [2022-11-21 09:14:08,515 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 135 places, 120 transitions, 709 flow, removed 9 selfloop flow, removed 21 redundant places. [2022-11-21 09:14:08,518 INFO L231 Difference]: Finished difference. Result has 137 places, 99 transitions, 502 flow [2022-11-21 09:14:08,518 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=80, PETRI_DIFFERENCE_MINUEND_FLOW=497, PETRI_DIFFERENCE_MINUEND_PLACES=121, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=104, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=82, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=502, PETRI_PLACES=137, PETRI_TRANSITIONS=99} [2022-11-21 09:14:08,519 INFO L288 CegarLoopForPetriNet]: 75 programPoint places, 62 predicate places. [2022-11-21 09:14:08,520 INFO L495 AbstractCegarLoop]: Abstraction has has 137 places, 99 transitions, 502 flow [2022-11-21 09:14:08,520 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 40.357142857142854) internal successors, (565), 14 states have internal predecessors, (565), 0 states have call successors, (0), 0 states 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 09:14:08,520 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 09:14:08,521 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 09:14:08,521 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-21 09:14:08,521 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-21 09:14:08,521 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 09:14:08,522 INFO L85 PathProgramCache]: Analyzing trace with hash -1030253376, now seen corresponding path program 3 times [2022-11-21 09:14:08,522 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 09:14:08,522 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1494589230] [2022-11-21 09:14:08,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 09:14:08,522 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 09:14:08,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:14:08,949 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 09:14:08,950 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 09:14:08,950 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1494589230] [2022-11-21 09:14:08,950 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1494589230] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 09:14:08,950 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 09:14:08,950 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-21 09:14:08,951 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [998416799] [2022-11-21 09:14:08,951 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 09:14:08,951 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-21 09:14:08,951 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 09:14:08,952 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-21 09:14:08,952 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2022-11-21 09:14:08,953 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 42 out of 80 [2022-11-21 09:14:08,954 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 137 places, 99 transitions, 502 flow. Second operand has 14 states, 14 states have (on average 44.07142857142857) internal successors, (617), 14 states have internal predecessors, (617), 0 states have call successors, (0), 0 states 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 09:14:08,954 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 09:14:08,954 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 42 of 80 [2022-11-21 09:14:08,954 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 09:14:09,615 INFO L130 PetriNetUnfolder]: 47/255 cut-off events. [2022-11-21 09:14:09,616 INFO L131 PetriNetUnfolder]: For 543/545 co-relation queries the response was YES. [2022-11-21 09:14:09,617 INFO L83 FinitePrefix]: Finished finitePrefix Result has 709 conditions, 255 events. 47/255 cut-off events. For 543/545 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 1158 event pairs, 8 based on Foata normal form. 6/258 useless extension candidates. Maximal degree in co-relation 677. Up to 42 conditions per place. [2022-11-21 09:14:09,618 INFO L137 encePairwiseOnDemand]: 65/80 looper letters, 46 selfloop transitions, 23 changer transitions 16/121 dead transitions. [2022-11-21 09:14:09,618 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 143 places, 121 transitions, 760 flow [2022-11-21 09:14:09,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-21 09:14:09,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2022-11-21 09:14:09,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 700 transitions. [2022-11-21 09:14:09,621 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5833333333333334 [2022-11-21 09:14:09,621 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 700 transitions. [2022-11-21 09:14:09,621 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 700 transitions. [2022-11-21 09:14:09,621 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 09:14:09,622 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 700 transitions. [2022-11-21 09:14:09,623 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 46.666666666666664) internal successors, (700), 15 states have internal predecessors, (700), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 09:14:09,625 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 80.0) internal successors, (1280), 16 states have internal predecessors, (1280), 0 states have call successors, (0), 0 states 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 09:14:09,626 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 80.0) internal successors, (1280), 16 states have internal predecessors, (1280), 0 states have call successors, (0), 0 states 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 09:14:09,626 INFO L175 Difference]: Start difference. First operand has 137 places, 99 transitions, 502 flow. Second operand 15 states and 700 transitions. [2022-11-21 09:14:09,626 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 143 places, 121 transitions, 760 flow [2022-11-21 09:14:09,629 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 128 places, 121 transitions, 704 flow, removed 6 selfloop flow, removed 15 redundant places. [2022-11-21 09:14:09,631 INFO L231 Difference]: Finished difference. Result has 130 places, 93 transitions, 441 flow [2022-11-21 09:14:09,632 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=80, PETRI_DIFFERENCE_MINUEND_FLOW=448, PETRI_DIFFERENCE_MINUEND_PLACES=114, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=99, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=23, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=76, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=441, PETRI_PLACES=130, PETRI_TRANSITIONS=93} [2022-11-21 09:14:09,632 INFO L288 CegarLoopForPetriNet]: 75 programPoint places, 55 predicate places. [2022-11-21 09:14:09,632 INFO L495 AbstractCegarLoop]: Abstraction has has 130 places, 93 transitions, 441 flow [2022-11-21 09:14:09,633 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 44.07142857142857) internal successors, (617), 14 states have internal predecessors, (617), 0 states have call successors, (0), 0 states 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 09:14:09,633 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 09:14:09,633 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 09:14:09,633 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-21 09:14:09,634 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 09:14:09,634 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 09:14:09,634 INFO L85 PathProgramCache]: Analyzing trace with hash 1984146026, now seen corresponding path program 6 times [2022-11-21 09:14:09,634 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 09:14:09,635 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [288945434] [2022-11-21 09:14:09,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 09:14:09,635 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 09:14:09,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:14:09,992 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 09:14:09,992 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 09:14:09,993 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [288945434] [2022-11-21 09:14:09,993 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [288945434] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 09:14:09,993 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 09:14:09,993 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-21 09:14:09,993 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [185509477] [2022-11-21 09:14:09,993 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 09:14:09,994 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-21 09:14:09,994 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 09:14:09,994 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-21 09:14:09,995 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2022-11-21 09:14:09,996 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 38 out of 80 [2022-11-21 09:14:09,996 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 130 places, 93 transitions, 441 flow. Second operand has 14 states, 14 states have (on average 40.357142857142854) internal successors, (565), 14 states have internal predecessors, (565), 0 states have call successors, (0), 0 states 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 09:14:09,997 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 09:14:09,997 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 38 of 80 [2022-11-21 09:14:09,997 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 09:14:11,090 INFO L130 PetriNetUnfolder]: 47/231 cut-off events. [2022-11-21 09:14:11,091 INFO L131 PetriNetUnfolder]: For 535/537 co-relation queries the response was YES. [2022-11-21 09:14:11,091 INFO L83 FinitePrefix]: Finished finitePrefix Result has 673 conditions, 231 events. 47/231 cut-off events. For 535/537 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 982 event pairs, 0 based on Foata normal form. 4/235 useless extension candidates. Maximal degree in co-relation 643. Up to 24 conditions per place. [2022-11-21 09:14:11,092 INFO L137 encePairwiseOnDemand]: 65/80 looper letters, 41 selfloop transitions, 30 changer transitions 18/115 dead transitions. [2022-11-21 09:14:11,093 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 140 places, 115 transitions, 693 flow [2022-11-21 09:14:11,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-11-21 09:14:11,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2022-11-21 09:14:11,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 915 transitions. [2022-11-21 09:14:11,095 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5198863636363636 [2022-11-21 09:14:11,095 INFO L72 ComplementDD]: Start complementDD. Operand 22 states and 915 transitions. [2022-11-21 09:14:11,095 INFO L73 IsDeterministic]: Start isDeterministic. Operand 22 states and 915 transitions. [2022-11-21 09:14:11,096 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 09:14:11,096 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 22 states and 915 transitions. [2022-11-21 09:14:11,098 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 23 states, 22 states have (on average 41.59090909090909) internal successors, (915), 22 states have internal predecessors, (915), 0 states have call successors, (0), 0 states 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 09:14:11,101 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 23 states, 23 states have (on average 80.0) internal successors, (1840), 23 states have internal predecessors, (1840), 0 states have call successors, (0), 0 states 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 09:14:11,101 INFO L81 ComplementDD]: Finished complementDD. Result has 23 states, 23 states have (on average 80.0) internal successors, (1840), 23 states have internal predecessors, (1840), 0 states have call successors, (0), 0 states 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 09:14:11,102 INFO L175 Difference]: Start difference. First operand has 130 places, 93 transitions, 441 flow. Second operand 22 states and 915 transitions. [2022-11-21 09:14:11,102 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 140 places, 115 transitions, 693 flow [2022-11-21 09:14:11,105 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 118 places, 115 transitions, 565 flow, removed 9 selfloop flow, removed 22 redundant places. [2022-11-21 09:14:11,106 INFO L231 Difference]: Finished difference. Result has 118 places, 82 transitions, 354 flow [2022-11-21 09:14:11,107 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=80, PETRI_DIFFERENCE_MINUEND_FLOW=319, PETRI_DIFFERENCE_MINUEND_PLACES=97, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=91, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=28, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=63, PETRI_DIFFERENCE_SUBTRAHEND_STATES=22, PETRI_FLOW=354, PETRI_PLACES=118, PETRI_TRANSITIONS=82} [2022-11-21 09:14:11,107 INFO L288 CegarLoopForPetriNet]: 75 programPoint places, 43 predicate places. [2022-11-21 09:14:11,108 INFO L495 AbstractCegarLoop]: Abstraction has has 118 places, 82 transitions, 354 flow [2022-11-21 09:14:11,108 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 40.357142857142854) internal successors, (565), 14 states have internal predecessors, (565), 0 states have call successors, (0), 0 states 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 09:14:11,108 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 09:14:11,108 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 09:14:11,108 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-21 09:14:11,109 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-21 09:14:11,109 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 09:14:11,109 INFO L85 PathProgramCache]: Analyzing trace with hash 1901455948, now seen corresponding path program 4 times [2022-11-21 09:14:11,109 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 09:14:11,110 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1869723300] [2022-11-21 09:14:11,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 09:14:11,110 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 09:14:11,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:14:11,435 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 09:14:11,435 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 09:14:11,435 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1869723300] [2022-11-21 09:14:11,435 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1869723300] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 09:14:11,435 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 09:14:11,435 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-21 09:14:11,435 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [185405179] [2022-11-21 09:14:11,435 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 09:14:11,436 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-21 09:14:11,436 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 09:14:11,436 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-21 09:14:11,436 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-11-21 09:14:11,437 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 42 out of 80 [2022-11-21 09:14:11,438 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 118 places, 82 transitions, 354 flow. Second operand has 14 states, 14 states have (on average 44.07142857142857) internal successors, (617), 14 states have internal predecessors, (617), 0 states have call successors, (0), 0 states 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 09:14:11,438 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 09:14:11,438 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 42 of 80 [2022-11-21 09:14:11,438 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 09:14:12,105 INFO L130 PetriNetUnfolder]: 29/186 cut-off events. [2022-11-21 09:14:12,105 INFO L131 PetriNetUnfolder]: For 195/195 co-relation queries the response was YES. [2022-11-21 09:14:12,106 INFO L83 FinitePrefix]: Finished finitePrefix Result has 456 conditions, 186 events. 29/186 cut-off events. For 195/195 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 681 event pairs, 10 based on Foata normal form. 4/187 useless extension candidates. Maximal degree in co-relation 411. Up to 27 conditions per place. [2022-11-21 09:14:12,107 INFO L137 encePairwiseOnDemand]: 67/80 looper letters, 36 selfloop transitions, 17 changer transitions 14/97 dead transitions. [2022-11-21 09:14:12,107 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 122 places, 97 transitions, 528 flow [2022-11-21 09:14:12,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-21 09:14:12,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2022-11-21 09:14:12,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 736 transitions. [2022-11-21 09:14:12,109 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.575 [2022-11-21 09:14:12,110 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 736 transitions. [2022-11-21 09:14:12,110 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 736 transitions. [2022-11-21 09:14:12,110 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 09:14:12,110 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 736 transitions. [2022-11-21 09:14:12,112 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 46.0) internal successors, (736), 16 states have internal predecessors, (736), 0 states have call successors, (0), 0 states 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 09:14:12,114 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 80.0) internal successors, (1360), 17 states have internal predecessors, (1360), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 09:14:12,115 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 80.0) internal successors, (1360), 17 states have internal predecessors, (1360), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 09:14:12,115 INFO L175 Difference]: Start difference. First operand has 118 places, 82 transitions, 354 flow. Second operand 16 states and 736 transitions. [2022-11-21 09:14:12,116 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 122 places, 97 transitions, 528 flow [2022-11-21 09:14:12,118 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 100 places, 97 transitions, 423 flow, removed 8 selfloop flow, removed 22 redundant places. [2022-11-21 09:14:12,119 INFO L231 Difference]: Finished difference. Result has 103 places, 75 transitions, 258 flow [2022-11-21 09:14:12,120 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=80, PETRI_DIFFERENCE_MINUEND_FLOW=253, PETRI_DIFFERENCE_MINUEND_PLACES=85, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=82, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=65, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=258, PETRI_PLACES=103, PETRI_TRANSITIONS=75} [2022-11-21 09:14:12,120 INFO L288 CegarLoopForPetriNet]: 75 programPoint places, 28 predicate places. [2022-11-21 09:14:12,120 INFO L495 AbstractCegarLoop]: Abstraction has has 103 places, 75 transitions, 258 flow [2022-11-21 09:14:12,121 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 44.07142857142857) internal successors, (617), 14 states have internal predecessors, (617), 0 states have call successors, (0), 0 states 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 09:14:12,121 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 09:14:12,121 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 09:14:12,121 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-21 09:14:12,122 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-21 09:14:12,122 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 09:14:12,122 INFO L85 PathProgramCache]: Analyzing trace with hash -467358836, now seen corresponding path program 5 times [2022-11-21 09:14:12,122 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 09:14:12,123 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1166285785] [2022-11-21 09:14:12,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 09:14:12,123 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 09:14:12,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:14:12,483 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 09:14:12,483 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 09:14:12,483 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1166285785] [2022-11-21 09:14:12,483 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1166285785] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 09:14:12,483 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 09:14:12,484 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-21 09:14:12,484 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [790317749] [2022-11-21 09:14:12,484 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 09:14:12,484 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-21 09:14:12,484 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 09:14:12,485 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-21 09:14:12,485 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2022-11-21 09:14:12,486 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 42 out of 80 [2022-11-21 09:14:12,486 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 103 places, 75 transitions, 258 flow. Second operand has 14 states, 14 states have (on average 44.07142857142857) internal successors, (617), 14 states have internal predecessors, (617), 0 states have call successors, (0), 0 states 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 09:14:12,487 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 09:14:12,487 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 42 of 80 [2022-11-21 09:14:12,487 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 09:14:12,961 INFO L130 PetriNetUnfolder]: 18/134 cut-off events. [2022-11-21 09:14:12,961 INFO L131 PetriNetUnfolder]: For 95/95 co-relation queries the response was YES. [2022-11-21 09:14:12,962 INFO L83 FinitePrefix]: Finished finitePrefix Result has 295 conditions, 134 events. 18/134 cut-off events. For 95/95 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 335 event pairs, 5 based on Foata normal form. 4/136 useless extension candidates. Maximal degree in co-relation 270. Up to 27 conditions per place. [2022-11-21 09:14:12,962 INFO L137 encePairwiseOnDemand]: 67/80 looper letters, 28 selfloop transitions, 13 changer transitions 11/82 dead transitions. [2022-11-21 09:14:12,962 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 109 places, 82 transitions, 380 flow [2022-11-21 09:14:12,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-21 09:14:12,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-11-21 09:14:12,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 596 transitions. [2022-11-21 09:14:12,965 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.573076923076923 [2022-11-21 09:14:12,965 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 596 transitions. [2022-11-21 09:14:12,965 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 596 transitions. [2022-11-21 09:14:12,965 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 09:14:12,965 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 596 transitions. [2022-11-21 09:14:12,967 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 45.84615384615385) internal successors, (596), 13 states have internal predecessors, (596), 0 states have call successors, (0), 0 states 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 09:14:12,969 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 80.0) internal successors, (1120), 14 states have internal predecessors, (1120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 09:14:12,969 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 80.0) internal successors, (1120), 14 states have internal predecessors, (1120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 09:14:12,970 INFO L175 Difference]: Start difference. First operand has 103 places, 75 transitions, 258 flow. Second operand 13 states and 596 transitions. [2022-11-21 09:14:12,970 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 109 places, 82 transitions, 380 flow [2022-11-21 09:14:12,971 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 92 places, 82 transitions, 325 flow, removed 5 selfloop flow, removed 17 redundant places. [2022-11-21 09:14:12,973 INFO L231 Difference]: Finished difference. Result has 94 places, 70 transitions, 212 flow [2022-11-21 09:14:12,973 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=80, PETRI_DIFFERENCE_MINUEND_FLOW=205, PETRI_DIFFERENCE_MINUEND_PLACES=80, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=75, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=62, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=212, PETRI_PLACES=94, PETRI_TRANSITIONS=70} [2022-11-21 09:14:12,974 INFO L288 CegarLoopForPetriNet]: 75 programPoint places, 19 predicate places. [2022-11-21 09:14:12,974 INFO L495 AbstractCegarLoop]: Abstraction has has 94 places, 70 transitions, 212 flow [2022-11-21 09:14:12,974 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 44.07142857142857) internal successors, (617), 14 states have internal predecessors, (617), 0 states have call successors, (0), 0 states 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 09:14:12,974 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 09:14:12,975 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 09:14:12,975 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-21 09:14:12,975 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-21 09:14:12,975 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 09:14:12,976 INFO L85 PathProgramCache]: Analyzing trace with hash 1911421962, now seen corresponding path program 6 times [2022-11-21 09:14:12,976 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 09:14:12,976 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2093874917] [2022-11-21 09:14:12,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 09:14:12,976 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 09:14:12,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:14:13,311 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 09:14:13,312 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 09:14:13,312 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2093874917] [2022-11-21 09:14:13,312 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2093874917] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 09:14:13,312 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 09:14:13,312 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-21 09:14:13,312 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2144667784] [2022-11-21 09:14:13,312 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 09:14:13,313 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-21 09:14:13,313 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 09:14:13,313 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-21 09:14:13,313 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-11-21 09:14:13,314 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 42 out of 80 [2022-11-21 09:14:13,315 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 94 places, 70 transitions, 212 flow. Second operand has 14 states, 14 states have (on average 44.07142857142857) internal successors, (617), 14 states have internal predecessors, (617), 0 states have call successors, (0), 0 states 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 09:14:13,315 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 09:14:13,315 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 42 of 80 [2022-11-21 09:14:13,315 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 09:14:13,754 INFO L130 PetriNetUnfolder]: 11/95 cut-off events. [2022-11-21 09:14:13,754 INFO L131 PetriNetUnfolder]: For 42/42 co-relation queries the response was YES. [2022-11-21 09:14:13,754 INFO L83 FinitePrefix]: Finished finitePrefix Result has 197 conditions, 95 events. 11/95 cut-off events. For 42/42 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 150 event pairs, 4 based on Foata normal form. 4/97 useless extension candidates. Maximal degree in co-relation 189. Up to 14 conditions per place. [2022-11-21 09:14:13,754 INFO L137 encePairwiseOnDemand]: 68/80 looper letters, 0 selfloop transitions, 0 changer transitions 71/71 dead transitions. [2022-11-21 09:14:13,755 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 95 places, 71 transitions, 292 flow [2022-11-21 09:14:13,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-21 09:14:13,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2022-11-21 09:14:13,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 543 transitions. [2022-11-21 09:14:13,756 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.565625 [2022-11-21 09:14:13,756 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 543 transitions. [2022-11-21 09:14:13,757 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 543 transitions. [2022-11-21 09:14:13,757 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 09:14:13,757 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 543 transitions. [2022-11-21 09:14:13,758 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 45.25) internal successors, (543), 12 states have internal predecessors, (543), 0 states have call successors, (0), 0 states 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 09:14:13,760 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 80.0) internal successors, (1040), 13 states have internal predecessors, (1040), 0 states have call successors, (0), 0 states 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 09:14:13,761 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 80.0) internal successors, (1040), 13 states have internal predecessors, (1040), 0 states have call successors, (0), 0 states 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 09:14:13,761 INFO L175 Difference]: Start difference. First operand has 94 places, 70 transitions, 212 flow. Second operand 12 states and 543 transitions. [2022-11-21 09:14:13,761 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 95 places, 71 transitions, 292 flow [2022-11-21 09:14:13,762 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 84 places, 71 transitions, 262 flow, removed 1 selfloop flow, removed 11 redundant places. [2022-11-21 09:14:13,763 INFO L231 Difference]: Finished difference. Result has 84 places, 0 transitions, 0 flow [2022-11-21 09:14:13,763 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=80, PETRI_DIFFERENCE_MINUEND_FLOW=174, PETRI_DIFFERENCE_MINUEND_PLACES=73, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=68, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=68, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=0, PETRI_PLACES=84, PETRI_TRANSITIONS=0} [2022-11-21 09:14:13,764 INFO L288 CegarLoopForPetriNet]: 75 programPoint places, 9 predicate places. [2022-11-21 09:14:13,764 INFO L495 AbstractCegarLoop]: Abstraction has has 84 places, 0 transitions, 0 flow [2022-11-21 09:14:13,765 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 44.07142857142857) internal successors, (617), 14 states have internal predecessors, (617), 0 states have call successors, (0), 0 states 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 09:14:13,767 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 7 remaining) [2022-11-21 09:14:13,768 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 7 remaining) [2022-11-21 09:14:13,768 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 7 remaining) [2022-11-21 09:14:13,769 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 7 remaining) [2022-11-21 09:14:13,769 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 7 remaining) [2022-11-21 09:14:13,769 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 7 remaining) [2022-11-21 09:14:13,770 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 7 remaining) [2022-11-21 09:14:13,770 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-21 09:14:13,770 INFO L444 BasicCegarLoop]: Path program histogram: [6, 6, 1, 1] [2022-11-21 09:14:13,776 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-21 09:14:13,777 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-21 09:14:13,784 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.11 09:14:13 BasicIcfg [2022-11-21 09:14:13,784 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-21 09:14:13,785 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-21 09:14:13,785 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-21 09:14:13,785 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-21 09:14:13,786 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 09:13:55" (3/4) ... [2022-11-21 09:14:13,789 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-21 09:14:13,796 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2022-11-21 09:14:13,803 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2022-11-21 09:14:13,803 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-11-21 09:14:13,803 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-21 09:14:13,845 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a150d3e8-9bb3-477d-ac39-533ae38aa884/bin/uautomizer-vX5HgA9Q3a/witness.graphml [2022-11-21 09:14:13,845 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-21 09:14:13,846 INFO L158 Benchmark]: Toolchain (without parser) took 19822.69ms. Allocated memory was 169.9MB in the beginning and 247.5MB in the end (delta: 77.6MB). Free memory was 123.8MB in the beginning and 75.3MB in the end (delta: 48.5MB). Peak memory consumption was 128.1MB. Max. memory is 16.1GB. [2022-11-21 09:14:13,846 INFO L158 Benchmark]: CDTParser took 0.25ms. Allocated memory is still 134.2MB. Free memory was 75.1MB in the beginning and 74.9MB in the end (delta: 142.7kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-21 09:14:13,847 INFO L158 Benchmark]: CACSL2BoogieTranslator took 771.20ms. Allocated memory is still 169.9MB. Free memory was 123.5MB in the beginning and 96.6MB in the end (delta: 26.9MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2022-11-21 09:14:13,847 INFO L158 Benchmark]: Boogie Procedure Inliner took 80.77ms. Allocated memory is still 169.9MB. Free memory was 96.6MB in the beginning and 94.1MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-21 09:14:13,848 INFO L158 Benchmark]: Boogie Preprocessor took 50.83ms. Allocated memory is still 169.9MB. Free memory was 94.1MB in the beginning and 92.7MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-21 09:14:13,848 INFO L158 Benchmark]: RCFGBuilder took 543.63ms. Allocated memory is still 169.9MB. Free memory was 92.7MB in the beginning and 129.1MB in the end (delta: -36.3MB). Peak memory consumption was 9.8MB. Max. memory is 16.1GB. [2022-11-21 09:14:13,849 INFO L158 Benchmark]: TraceAbstraction took 18307.87ms. Allocated memory was 169.9MB in the beginning and 247.5MB in the end (delta: 77.6MB). Free memory was 128.4MB in the beginning and 77.4MB in the end (delta: 51.0MB). Peak memory consumption was 128.8MB. Max. memory is 16.1GB. [2022-11-21 09:14:13,849 INFO L158 Benchmark]: Witness Printer took 60.66ms. Allocated memory is still 247.5MB. Free memory was 77.4MB in the beginning and 75.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-21 09:14:13,851 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25ms. Allocated memory is still 134.2MB. Free memory was 75.1MB in the beginning and 74.9MB in the end (delta: 142.7kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 771.20ms. Allocated memory is still 169.9MB. Free memory was 123.5MB in the beginning and 96.6MB in the end (delta: 26.9MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 80.77ms. Allocated memory is still 169.9MB. Free memory was 96.6MB in the beginning and 94.1MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 50.83ms. Allocated memory is still 169.9MB. Free memory was 94.1MB in the beginning and 92.7MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 543.63ms. Allocated memory is still 169.9MB. Free memory was 92.7MB in the beginning and 129.1MB in the end (delta: -36.3MB). Peak memory consumption was 9.8MB. Max. memory is 16.1GB. * TraceAbstraction took 18307.87ms. Allocated memory was 169.9MB in the beginning and 247.5MB in the end (delta: 77.6MB). Free memory was 128.4MB in the beginning and 77.4MB in the end (delta: 51.0MB). Peak memory consumption was 128.8MB. Max. memory is 16.1GB. * Witness Printer took 60.66ms. Allocated memory is still 247.5MB. Free memory was 77.4MB in the beginning and 75.3MB 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: 923]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 923]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 923]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 923]: 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, 102 locations, 7 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 18.1s, OverallIterations: 14, TraceHistogramMax: 1, PathProgramHistogramMax: 6, EmptinessCheckTime: 0.0s, AutomataDifference: 11.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2653 SdHoareTripleChecker+Valid, 3.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2653 mSDsluCounter, 1305 SdHoareTripleChecker+Invalid, 2.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1073 mSDsCounter, 133 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3908 IncrementalHoareTripleChecker+Invalid, 4041 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 133 mSolverCounterUnsat, 232 mSDtfsCounter, 3908 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 355 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 341 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 719 ImplicationChecksByTransitivity, 8.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=648occurred in iteration=7, InterpolantAutomatonStates: 225, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 6.3s InterpolantComputationTime, 759 NumberOfCodeBlocks, 759 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 745 ConstructedInterpolants, 0 QuantifiedInterpolants, 9203 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 14 InterpolantComputations, 14 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 09:14:13,878 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a150d3e8-9bb3-477d-ac39-533ae38aa884/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE