./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/goblint-regression/06-symbeq_08-tricky_address3.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8646e8d5-6080-43b6-aef1-cbc69bd00115/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8646e8d5-6080-43b6-aef1-cbc69bd00115/bin/uautomizer-uyxdKDjOR8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8646e8d5-6080-43b6-aef1-cbc69bd00115/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8646e8d5-6080-43b6-aef1-cbc69bd00115/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/06-symbeq_08-tricky_address3.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8646e8d5-6080-43b6-aef1-cbc69bd00115/bin/uautomizer-uyxdKDjOR8/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8646e8d5-6080-43b6-aef1-cbc69bd00115/bin/uautomizer-uyxdKDjOR8 --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 a812aad62102b8bb20af57f89ce6dbf7fb9ee1fa63f6f8ecf164ccf61d0713cb --- 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-2329fc7 [2022-12-13 19:03:52,860 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 19:03:52,862 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 19:03:52,874 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 19:03:52,874 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 19:03:52,875 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 19:03:52,876 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 19:03:52,877 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 19:03:52,878 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 19:03:52,878 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 19:03:52,879 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 19:03:52,880 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 19:03:52,880 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 19:03:52,880 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 19:03:52,881 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 19:03:52,882 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 19:03:52,882 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 19:03:52,883 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 19:03:52,884 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 19:03:52,885 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 19:03:52,886 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 19:03:52,887 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 19:03:52,888 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 19:03:52,888 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 19:03:52,890 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 19:03:52,890 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 19:03:52,891 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 19:03:52,891 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 19:03:52,891 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 19:03:52,892 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 19:03:52,892 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 19:03:52,893 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 19:03:52,893 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 19:03:52,894 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 19:03:52,894 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 19:03:52,894 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 19:03:52,895 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 19:03:52,895 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 19:03:52,895 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 19:03:52,895 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 19:03:52,896 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 19:03:52,896 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8646e8d5-6080-43b6-aef1-cbc69bd00115/bin/uautomizer-uyxdKDjOR8/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-12-13 19:03:52,910 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 19:03:52,911 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 19:03:52,911 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 19:03:52,911 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 19:03:52,911 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 19:03:52,912 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 19:03:52,912 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 19:03:52,912 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 19:03:52,912 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 19:03:52,912 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 19:03:52,912 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 19:03:52,913 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-13 19:03:52,913 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 19:03:52,913 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 19:03:52,913 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 19:03:52,913 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 19:03:52,913 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 19:03:52,913 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 19:03:52,913 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-12-13 19:03:52,913 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 19:03:52,913 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 19:03:52,913 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 19:03:52,914 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 19:03:52,914 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 19:03:52,914 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 19:03:52,914 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 19:03:52,914 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 19:03:52,914 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 19:03:52,914 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 19:03:52,914 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 19:03:52,914 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 19:03:52,914 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 19:03:52,914 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 19:03:52,915 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 19:03:52,915 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 19:03:52,915 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 19:03:52,915 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 19:03:52,915 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8646e8d5-6080-43b6-aef1-cbc69bd00115/bin/uautomizer-uyxdKDjOR8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8646e8d5-6080-43b6-aef1-cbc69bd00115/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a812aad62102b8bb20af57f89ce6dbf7fb9ee1fa63f6f8ecf164ccf61d0713cb [2022-12-13 19:03:53,099 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 19:03:53,115 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 19:03:53,117 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 19:03:53,118 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 19:03:53,118 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 19:03:53,119 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8646e8d5-6080-43b6-aef1-cbc69bd00115/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/goblint-regression/06-symbeq_08-tricky_address3.i [2022-12-13 19:03:55,702 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 19:03:55,916 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 19:03:55,916 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8646e8d5-6080-43b6-aef1-cbc69bd00115/sv-benchmarks/c/goblint-regression/06-symbeq_08-tricky_address3.i [2022-12-13 19:03:55,929 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8646e8d5-6080-43b6-aef1-cbc69bd00115/bin/uautomizer-uyxdKDjOR8/data/cac75d0e7/a3f84f09e9564ebdaab5936d280a30d1/FLAGe3d4e2ace [2022-12-13 19:03:56,282 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8646e8d5-6080-43b6-aef1-cbc69bd00115/bin/uautomizer-uyxdKDjOR8/data/cac75d0e7/a3f84f09e9564ebdaab5936d280a30d1 [2022-12-13 19:03:56,287 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 19:03:56,289 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 19:03:56,291 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 19:03:56,291 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 19:03:56,295 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 19:03:56,296 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 07:03:56" (1/1) ... [2022-12-13 19:03:56,297 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3cabb858 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:03:56, skipping insertion in model container [2022-12-13 19:03:56,297 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 07:03:56" (1/1) ... [2022-12-13 19:03:56,303 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 19:03:56,334 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 19:03:56,666 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 19:03:56,681 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 19:03:56,726 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 19:03:56,775 INFO L208 MainTranslator]: Completed translation [2022-12-13 19:03:56,776 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:03:56 WrapperNode [2022-12-13 19:03:56,776 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 19:03:56,777 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 19:03:56,777 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 19:03:56,777 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 19:03:56,784 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:03:56" (1/1) ... [2022-12-13 19:03:56,795 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:03:56" (1/1) ... [2022-12-13 19:03:56,810 INFO L138 Inliner]: procedures = 264, calls = 16, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 75 [2022-12-13 19:03:56,811 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 19:03:56,811 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 19:03:56,811 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 19:03:56,811 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 19:03:56,819 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:03:56" (1/1) ... [2022-12-13 19:03:56,819 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:03:56" (1/1) ... [2022-12-13 19:03:56,822 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:03:56" (1/1) ... [2022-12-13 19:03:56,823 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:03:56" (1/1) ... [2022-12-13 19:03:56,829 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:03:56" (1/1) ... [2022-12-13 19:03:56,832 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:03:56" (1/1) ... [2022-12-13 19:03:56,833 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:03:56" (1/1) ... [2022-12-13 19:03:56,834 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:03:56" (1/1) ... [2022-12-13 19:03:56,836 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 19:03:56,837 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 19:03:56,837 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 19:03:56,837 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 19:03:56,838 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:03:56" (1/1) ... [2022-12-13 19:03:56,844 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 19:03:56,853 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8646e8d5-6080-43b6-aef1-cbc69bd00115/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 19:03:56,863 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8646e8d5-6080-43b6-aef1-cbc69bd00115/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 19:03:56,865 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8646e8d5-6080-43b6-aef1-cbc69bd00115/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 19:03:56,896 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 19:03:56,896 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 19:03:56,896 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-13 19:03:56,896 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-13 19:03:56,896 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-12-13 19:03:56,897 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 19:03:56,897 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-12-13 19:03:56,897 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-12-13 19:03:56,897 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 19:03:56,897 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 19:03:56,898 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-12-13 19:03:56,999 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 19:03:57,000 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 19:03:57,124 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 19:03:57,129 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 19:03:57,129 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-12-13 19:03:57,131 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 07:03:57 BoogieIcfgContainer [2022-12-13 19:03:57,131 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 19:03:57,133 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 19:03:57,133 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 19:03:57,135 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 19:03:57,135 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 07:03:56" (1/3) ... [2022-12-13 19:03:57,136 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ae38c22 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 07:03:57, skipping insertion in model container [2022-12-13 19:03:57,136 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:03:56" (2/3) ... [2022-12-13 19:03:57,136 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ae38c22 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 07:03:57, skipping insertion in model container [2022-12-13 19:03:57,136 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 07:03:57" (3/3) ... [2022-12-13 19:03:57,137 INFO L112 eAbstractionObserver]: Analyzing ICFG 06-symbeq_08-tricky_address3.i [2022-12-13 19:03:57,143 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-12-13 19:03:57,151 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 19:03:57,151 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2022-12-13 19:03:57,151 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-13 19:03:57,206 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-12-13 19:03:57,238 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 94 places, 94 transitions, 193 flow [2022-12-13 19:03:57,272 INFO L130 PetriNetUnfolder]: 4/93 cut-off events. [2022-12-13 19:03:57,273 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 19:03:57,276 INFO L83 FinitePrefix]: Finished finitePrefix Result has 97 conditions, 93 events. 4/93 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 75 event pairs, 0 based on Foata normal form. 0/81 useless extension candidates. Maximal degree in co-relation 54. Up to 2 conditions per place. [2022-12-13 19:03:57,277 INFO L82 GeneralOperation]: Start removeDead. Operand has 94 places, 94 transitions, 193 flow [2022-12-13 19:03:57,280 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 93 places, 93 transitions, 189 flow [2022-12-13 19:03:57,282 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2022-12-13 19:03:57,290 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 93 places, 93 transitions, 189 flow [2022-12-13 19:03:57,292 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 93 places, 93 transitions, 189 flow [2022-12-13 19:03:57,292 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 93 places, 93 transitions, 189 flow [2022-12-13 19:03:57,314 INFO L130 PetriNetUnfolder]: 4/93 cut-off events. [2022-12-13 19:03:57,314 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 19:03:57,315 INFO L83 FinitePrefix]: Finished finitePrefix Result has 97 conditions, 93 events. 4/93 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 75 event pairs, 0 based on Foata normal form. 0/81 useless extension candidates. Maximal degree in co-relation 54. Up to 2 conditions per place. [2022-12-13 19:03:57,317 INFO L119 LiptonReduction]: Number of co-enabled transitions 1360 [2022-12-13 19:03:58,899 INFO L134 LiptonReduction]: Checked pairs total: 1954 [2022-12-13 19:03:58,900 INFO L136 LiptonReduction]: Total number of compositions: 103 [2022-12-13 19:03:58,914 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 19:03:58,920 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;@685b4926, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 19:03:58,920 INFO L358 AbstractCegarLoop]: Starting to check reachability of 13 error locations. [2022-12-13 19:03:58,921 INFO L130 PetriNetUnfolder]: 1/2 cut-off events. [2022-12-13 19:03:58,922 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 19:03:58,922 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 19:03:58,922 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1] [2022-12-13 19:03:58,922 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2022-12-13 19:03:58,926 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 19:03:58,926 INFO L85 PathProgramCache]: Analyzing trace with hash 11655, now seen corresponding path program 1 times [2022-12-13 19:03:58,933 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 19:03:58,933 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [102567937] [2022-12-13 19:03:58,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:03:58,933 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 19:03:59,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:03:59,062 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 19:03:59,063 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 19:03:59,063 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [102567937] [2022-12-13 19:03:59,064 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [102567937] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 19:03:59,064 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 19:03:59,064 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-13 19:03:59,065 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1446793979] [2022-12-13 19:03:59,066 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 19:03:59,072 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 19:03:59,072 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 19:03:59,086 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 19:03:59,087 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 19:03:59,100 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 86 out of 197 [2022-12-13 19:03:59,102 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 23 places, 20 transitions, 43 flow. Second operand has 3 states, 3 states have (on average 86.66666666666667) internal successors, (260), 3 states have internal predecessors, (260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:03:59,102 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 19:03:59,103 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 86 of 197 [2022-12-13 19:03:59,103 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 19:03:59,139 INFO L130 PetriNetUnfolder]: 37/88 cut-off events. [2022-12-13 19:03:59,139 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 19:03:59,139 INFO L83 FinitePrefix]: Finished finitePrefix Result has 181 conditions, 88 events. 37/88 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 282 event pairs, 36 based on Foata normal form. 0/59 useless extension candidates. Maximal degree in co-relation 168. Up to 88 conditions per place. [2022-12-13 19:03:59,140 INFO L137 encePairwiseOnDemand]: 192/197 looper letters, 15 selfloop transitions, 1 changer transitions 0/16 dead transitions. [2022-12-13 19:03:59,140 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 21 places, 16 transitions, 67 flow [2022-12-13 19:03:59,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 19:03:59,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 19:03:59,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 278 transitions. [2022-12-13 19:03:59,150 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4703891708967851 [2022-12-13 19:03:59,150 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 278 transitions. [2022-12-13 19:03:59,151 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 278 transitions. [2022-12-13 19:03:59,151 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 19:03:59,153 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 278 transitions. [2022-12-13 19:03:59,155 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 92.66666666666667) internal successors, (278), 3 states have internal predecessors, (278), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:03:59,159 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 197.0) internal successors, (788), 4 states have internal predecessors, (788), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:03:59,160 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 197.0) internal successors, (788), 4 states have internal predecessors, (788), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:03:59,161 INFO L175 Difference]: Start difference. First operand has 23 places, 20 transitions, 43 flow. Second operand 3 states and 278 transitions. [2022-12-13 19:03:59,162 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 21 places, 16 transitions, 67 flow [2022-12-13 19:03:59,163 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 20 places, 16 transitions, 66 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-13 19:03:59,164 INFO L231 Difference]: Finished difference. Result has 20 places, 16 transitions, 36 flow [2022-12-13 19:03:59,165 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=197, PETRI_DIFFERENCE_MINUEND_FLOW=34, PETRI_DIFFERENCE_MINUEND_PLACES=18, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=16, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=36, PETRI_PLACES=20, PETRI_TRANSITIONS=16} [2022-12-13 19:03:59,168 INFO L288 CegarLoopForPetriNet]: 23 programPoint places, -3 predicate places. [2022-12-13 19:03:59,168 INFO L495 AbstractCegarLoop]: Abstraction has has 20 places, 16 transitions, 36 flow [2022-12-13 19:03:59,168 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 86.66666666666667) internal successors, (260), 3 states have internal predecessors, (260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:03:59,168 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 19:03:59,168 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2022-12-13 19:03:59,169 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 19:03:59,169 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2022-12-13 19:03:59,169 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 19:03:59,169 INFO L85 PathProgramCache]: Analyzing trace with hash 348468505, now seen corresponding path program 1 times [2022-12-13 19:03:59,169 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 19:03:59,169 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1255831921] [2022-12-13 19:03:59,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:03:59,170 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 19:03:59,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:03:59,217 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 19:03:59,217 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 19:03:59,217 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1255831921] [2022-12-13 19:03:59,218 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1255831921] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 19:03:59,218 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 19:03:59,218 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 19:03:59,218 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1914144157] [2022-12-13 19:03:59,218 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 19:03:59,219 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 19:03:59,219 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 19:03:59,220 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 19:03:59,220 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 19:03:59,232 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 86 out of 197 [2022-12-13 19:03:59,233 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 20 places, 16 transitions, 36 flow. Second operand has 3 states, 3 states have (on average 87.66666666666667) internal successors, (263), 3 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:03:59,233 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 19:03:59,233 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 86 of 197 [2022-12-13 19:03:59,233 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 19:03:59,274 INFO L130 PetriNetUnfolder]: 37/89 cut-off events. [2022-12-13 19:03:59,274 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 19:03:59,274 INFO L83 FinitePrefix]: Finished finitePrefix Result has 184 conditions, 89 events. 37/89 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 282 event pairs, 36 based on Foata normal form. 0/60 useless extension candidates. Maximal degree in co-relation 178. Up to 89 conditions per place. [2022-12-13 19:03:59,275 INFO L137 encePairwiseOnDemand]: 194/197 looper letters, 15 selfloop transitions, 2 changer transitions 0/17 dead transitions. [2022-12-13 19:03:59,275 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 22 places, 17 transitions, 72 flow [2022-12-13 19:03:59,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 19:03:59,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 19:03:59,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 276 transitions. [2022-12-13 19:03:59,278 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.467005076142132 [2022-12-13 19:03:59,278 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 276 transitions. [2022-12-13 19:03:59,278 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 276 transitions. [2022-12-13 19:03:59,279 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 19:03:59,279 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 276 transitions. [2022-12-13 19:03:59,280 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 92.0) internal successors, (276), 3 states have internal predecessors, (276), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:03:59,282 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 197.0) internal successors, (788), 4 states have internal predecessors, (788), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:03:59,283 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 197.0) internal successors, (788), 4 states have internal predecessors, (788), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:03:59,283 INFO L175 Difference]: Start difference. First operand has 20 places, 16 transitions, 36 flow. Second operand 3 states and 276 transitions. [2022-12-13 19:03:59,283 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 22 places, 17 transitions, 72 flow [2022-12-13 19:03:59,283 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 21 places, 17 transitions, 71 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-13 19:03:59,284 INFO L231 Difference]: Finished difference. Result has 22 places, 17 transitions, 47 flow [2022-12-13 19:03:59,284 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=197, PETRI_DIFFERENCE_MINUEND_FLOW=35, PETRI_DIFFERENCE_MINUEND_PLACES=19, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=16, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=14, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=47, PETRI_PLACES=22, PETRI_TRANSITIONS=17} [2022-12-13 19:03:59,284 INFO L288 CegarLoopForPetriNet]: 23 programPoint places, -1 predicate places. [2022-12-13 19:03:59,284 INFO L495 AbstractCegarLoop]: Abstraction has has 22 places, 17 transitions, 47 flow [2022-12-13 19:03:59,284 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 87.66666666666667) internal successors, (263), 3 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:03:59,284 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 19:03:59,285 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2022-12-13 19:03:59,285 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-13 19:03:59,285 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2022-12-13 19:03:59,285 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 19:03:59,285 INFO L85 PathProgramCache]: Analyzing trace with hash -2081252142, now seen corresponding path program 1 times [2022-12-13 19:03:59,285 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 19:03:59,285 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [594315167] [2022-12-13 19:03:59,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:03:59,286 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 19:03:59,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:03:59,347 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 19:03:59,347 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 19:03:59,347 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [594315167] [2022-12-13 19:03:59,347 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [594315167] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 19:03:59,348 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [744883522] [2022-12-13 19:03:59,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:03:59,348 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 19:03:59,348 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8646e8d5-6080-43b6-aef1-cbc69bd00115/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 19:03:59,349 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8646e8d5-6080-43b6-aef1-cbc69bd00115/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 19:03:59,350 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8646e8d5-6080-43b6-aef1-cbc69bd00115/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-13 19:03:59,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:03:59,407 INFO L263 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-13 19:03:59,410 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 19:03:59,438 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 19:03:59,438 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 19:03:59,452 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 19:03:59,453 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [744883522] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 19:03:59,453 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 19:03:59,453 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 5 [2022-12-13 19:03:59,453 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1280582219] [2022-12-13 19:03:59,453 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 19:03:59,454 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 19:03:59,454 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 19:03:59,454 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 19:03:59,454 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-12-13 19:03:59,473 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 85 out of 197 [2022-12-13 19:03:59,474 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 22 places, 17 transitions, 47 flow. Second operand has 6 states, 6 states have (on average 86.5) internal successors, (519), 6 states have internal predecessors, (519), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:03:59,474 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 19:03:59,474 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 85 of 197 [2022-12-13 19:03:59,474 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 19:03:59,529 INFO L130 PetriNetUnfolder]: 37/92 cut-off events. [2022-12-13 19:03:59,530 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 19:03:59,530 INFO L83 FinitePrefix]: Finished finitePrefix Result has 199 conditions, 92 events. 37/92 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 282 event pairs, 36 based on Foata normal form. 0/63 useless extension candidates. Maximal degree in co-relation 191. Up to 89 conditions per place. [2022-12-13 19:03:59,531 INFO L137 encePairwiseOnDemand]: 194/197 looper letters, 15 selfloop transitions, 5 changer transitions 0/20 dead transitions. [2022-12-13 19:03:59,531 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 27 places, 20 transitions, 99 flow [2022-12-13 19:03:59,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 19:03:59,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-13 19:03:59,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 533 transitions. [2022-12-13 19:03:59,534 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4509306260575296 [2022-12-13 19:03:59,534 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 533 transitions. [2022-12-13 19:03:59,534 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 533 transitions. [2022-12-13 19:03:59,534 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 19:03:59,534 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 533 transitions. [2022-12-13 19:03:59,536 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 88.83333333333333) internal successors, (533), 6 states have internal predecessors, (533), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:03:59,539 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 197.0) internal successors, (1379), 7 states have internal predecessors, (1379), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:03:59,542 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 197.0) internal successors, (1379), 7 states have internal predecessors, (1379), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:03:59,542 INFO L175 Difference]: Start difference. First operand has 22 places, 17 transitions, 47 flow. Second operand 6 states and 533 transitions. [2022-12-13 19:03:59,542 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 27 places, 20 transitions, 99 flow [2022-12-13 19:03:59,543 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 26 places, 20 transitions, 95 flow, removed 1 selfloop flow, removed 1 redundant places. [2022-12-13 19:03:59,544 INFO L231 Difference]: Finished difference. Result has 29 places, 20 transitions, 79 flow [2022-12-13 19:03:59,544 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=197, PETRI_DIFFERENCE_MINUEND_FLOW=43, PETRI_DIFFERENCE_MINUEND_PLACES=21, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=17, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=14, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=79, PETRI_PLACES=29, PETRI_TRANSITIONS=20} [2022-12-13 19:03:59,544 INFO L288 CegarLoopForPetriNet]: 23 programPoint places, 6 predicate places. [2022-12-13 19:03:59,545 INFO L495 AbstractCegarLoop]: Abstraction has has 29 places, 20 transitions, 79 flow [2022-12-13 19:03:59,545 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 86.5) internal successors, (519), 6 states have internal predecessors, (519), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:03:59,545 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 19:03:59,545 INFO L209 CegarLoopForPetriNet]: trace histogram [4, 1, 1, 1, 1, 1] [2022-12-13 19:03:59,553 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8646e8d5-6080-43b6-aef1-cbc69bd00115/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-13 19:03:59,746 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8646e8d5-6080-43b6-aef1-cbc69bd00115/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 19:03:59,748 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2022-12-13 19:03:59,749 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 19:03:59,750 INFO L85 PathProgramCache]: Analyzing trace with hash 683531097, now seen corresponding path program 2 times [2022-12-13 19:03:59,750 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 19:03:59,752 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [959581325] [2022-12-13 19:03:59,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:03:59,753 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 19:03:59,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:03:59,958 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 19:03:59,959 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 19:03:59,959 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [959581325] [2022-12-13 19:03:59,959 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [959581325] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 19:03:59,959 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1463588621] [2022-12-13 19:03:59,959 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-12-13 19:03:59,959 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 19:03:59,959 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8646e8d5-6080-43b6-aef1-cbc69bd00115/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 19:03:59,960 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8646e8d5-6080-43b6-aef1-cbc69bd00115/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 19:03:59,961 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8646e8d5-6080-43b6-aef1-cbc69bd00115/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-13 19:04:00,014 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-12-13 19:04:00,014 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 19:04:00,016 INFO L263 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 12 conjunts are in the unsatisfiable core [2022-12-13 19:04:00,017 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 19:04:00,045 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 6 [2022-12-13 19:04:00,094 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 19:04:00,095 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 15 [2022-12-13 19:04:00,121 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-12-13 19:04:00,121 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 19:04:00,121 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1463588621] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 19:04:00,122 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-13 19:04:00,122 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 9 [2022-12-13 19:04:00,122 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1091323488] [2022-12-13 19:04:00,122 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 19:04:00,122 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 19:04:00,122 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 19:04:00,122 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 19:04:00,123 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-12-13 19:04:00,184 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 84 out of 197 [2022-12-13 19:04:00,184 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 29 places, 20 transitions, 79 flow. Second operand has 5 states, 5 states have (on average 85.2) internal successors, (426), 5 states have internal predecessors, (426), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:04:00,185 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 19:04:00,185 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 84 of 197 [2022-12-13 19:04:00,185 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 19:04:00,266 INFO L130 PetriNetUnfolder]: 21/60 cut-off events. [2022-12-13 19:04:00,266 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-12-13 19:04:00,266 INFO L83 FinitePrefix]: Finished finitePrefix Result has 148 conditions, 60 events. 21/60 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 144 event pairs, 6 based on Foata normal form. 0/52 useless extension candidates. Maximal degree in co-relation 136. Up to 41 conditions per place. [2022-12-13 19:04:00,267 INFO L137 encePairwiseOnDemand]: 189/197 looper letters, 20 selfloop transitions, 5 changer transitions 4/29 dead transitions. [2022-12-13 19:04:00,267 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 32 places, 29 transitions, 155 flow [2022-12-13 19:04:00,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 19:04:00,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-13 19:04:00,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 367 transitions. [2022-12-13 19:04:00,269 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.46573604060913704 [2022-12-13 19:04:00,269 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 367 transitions. [2022-12-13 19:04:00,269 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 367 transitions. [2022-12-13 19:04:00,269 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 19:04:00,269 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 367 transitions. [2022-12-13 19:04:00,270 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 91.75) internal successors, (367), 4 states have internal predecessors, (367), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:04:00,273 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 197.0) internal successors, (985), 5 states have internal predecessors, (985), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:04:00,273 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 197.0) internal successors, (985), 5 states have internal predecessors, (985), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:04:00,274 INFO L175 Difference]: Start difference. First operand has 29 places, 20 transitions, 79 flow. Second operand 4 states and 367 transitions. [2022-12-13 19:04:00,274 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 32 places, 29 transitions, 155 flow [2022-12-13 19:04:00,275 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 31 places, 29 transitions, 141 flow, removed 6 selfloop flow, removed 1 redundant places. [2022-12-13 19:04:00,275 INFO L231 Difference]: Finished difference. Result has 33 places, 22 transitions, 99 flow [2022-12-13 19:04:00,276 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=197, PETRI_DIFFERENCE_MINUEND_FLOW=65, PETRI_DIFFERENCE_MINUEND_PLACES=28, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=20, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=99, PETRI_PLACES=33, PETRI_TRANSITIONS=22} [2022-12-13 19:04:00,276 INFO L288 CegarLoopForPetriNet]: 23 programPoint places, 10 predicate places. [2022-12-13 19:04:00,277 INFO L495 AbstractCegarLoop]: Abstraction has has 33 places, 22 transitions, 99 flow [2022-12-13 19:04:00,277 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 85.2) internal successors, (426), 5 states have internal predecessors, (426), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:04:00,277 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 19:04:00,277 INFO L209 CegarLoopForPetriNet]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 19:04:00,282 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8646e8d5-6080-43b6-aef1-cbc69bd00115/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-12-13 19:04:00,478 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8646e8d5-6080-43b6-aef1-cbc69bd00115/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 19:04:00,478 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2022-12-13 19:04:00,479 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 19:04:00,479 INFO L85 PathProgramCache]: Analyzing trace with hash 586752367, now seen corresponding path program 1 times [2022-12-13 19:04:00,479 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 19:04:00,479 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1393588375] [2022-12-13 19:04:00,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:04:00,480 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 19:04:00,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:04:00,588 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 19:04:00,588 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 19:04:00,588 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1393588375] [2022-12-13 19:04:00,589 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1393588375] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 19:04:00,589 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1794031244] [2022-12-13 19:04:00,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:04:00,589 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 19:04:00,589 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8646e8d5-6080-43b6-aef1-cbc69bd00115/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 19:04:00,590 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8646e8d5-6080-43b6-aef1-cbc69bd00115/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 19:04:00,591 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8646e8d5-6080-43b6-aef1-cbc69bd00115/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-12-13 19:04:00,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:04:00,648 INFO L263 TraceCheckSpWp]: Trace formula consists of 137 conjuncts, 6 conjunts are in the unsatisfiable core [2022-12-13 19:04:00,649 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 19:04:00,660 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 19:04:00,660 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 19:04:00,696 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 19:04:00,696 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1794031244] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 19:04:00,696 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 19:04:00,696 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 11 [2022-12-13 19:04:00,696 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [197300116] [2022-12-13 19:04:00,696 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 19:04:00,697 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-12-13 19:04:00,697 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 19:04:00,697 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-12-13 19:04:00,697 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2022-12-13 19:04:00,721 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 85 out of 197 [2022-12-13 19:04:00,723 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 33 places, 22 transitions, 99 flow. Second operand has 12 states, 12 states have (on average 86.5) internal successors, (1038), 12 states have internal predecessors, (1038), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:04:00,723 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 19:04:00,723 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 85 of 197 [2022-12-13 19:04:00,723 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 19:04:00,782 INFO L130 PetriNetUnfolder]: 17/58 cut-off events. [2022-12-13 19:04:00,783 INFO L131 PetriNetUnfolder]: For 39/39 co-relation queries the response was YES. [2022-12-13 19:04:00,783 INFO L83 FinitePrefix]: Finished finitePrefix Result has 185 conditions, 58 events. 17/58 cut-off events. For 39/39 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 120 event pairs, 14 based on Foata normal form. 6/60 useless extension candidates. Maximal degree in co-relation 170. Up to 49 conditions per place. [2022-12-13 19:04:00,783 INFO L137 encePairwiseOnDemand]: 194/197 looper letters, 17 selfloop transitions, 11 changer transitions 0/28 dead transitions. [2022-12-13 19:04:00,784 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 44 places, 28 transitions, 191 flow [2022-12-13 19:04:00,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-12-13 19:04:00,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2022-12-13 19:04:00,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1052 transitions. [2022-12-13 19:04:00,787 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4450084602368866 [2022-12-13 19:04:00,787 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1052 transitions. [2022-12-13 19:04:00,787 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1052 transitions. [2022-12-13 19:04:00,788 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 19:04:00,788 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1052 transitions. [2022-12-13 19:04:00,791 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 87.66666666666667) internal successors, (1052), 12 states have internal predecessors, (1052), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:04:00,795 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 197.0) internal successors, (2561), 13 states have internal predecessors, (2561), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:04:00,796 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 197.0) internal successors, (2561), 13 states have internal predecessors, (2561), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:04:00,796 INFO L175 Difference]: Start difference. First operand has 33 places, 22 transitions, 99 flow. Second operand 12 states and 1052 transitions. [2022-12-13 19:04:00,796 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 44 places, 28 transitions, 191 flow [2022-12-13 19:04:00,797 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 43 places, 28 transitions, 187 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-13 19:04:00,798 INFO L231 Difference]: Finished difference. Result has 49 places, 28 transitions, 179 flow [2022-12-13 19:04:00,798 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=197, PETRI_DIFFERENCE_MINUEND_FLOW=95, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=179, PETRI_PLACES=49, PETRI_TRANSITIONS=28} [2022-12-13 19:04:00,799 INFO L288 CegarLoopForPetriNet]: 23 programPoint places, 26 predicate places. [2022-12-13 19:04:00,799 INFO L495 AbstractCegarLoop]: Abstraction has has 49 places, 28 transitions, 179 flow [2022-12-13 19:04:00,800 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 86.5) internal successors, (1038), 12 states have internal predecessors, (1038), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:04:00,800 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 19:04:00,800 INFO L209 CegarLoopForPetriNet]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 19:04:00,805 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8646e8d5-6080-43b6-aef1-cbc69bd00115/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-12-13 19:04:01,001 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8646e8d5-6080-43b6-aef1-cbc69bd00115/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 19:04:01,002 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2022-12-13 19:04:01,003 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 19:04:01,003 INFO L85 PathProgramCache]: Analyzing trace with hash -1714483687, now seen corresponding path program 2 times [2022-12-13 19:04:01,004 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 19:04:01,004 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1469486634] [2022-12-13 19:04:01,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:04:01,005 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 19:04:01,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:04:01,418 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-12-13 19:04:01,418 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 19:04:01,418 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1469486634] [2022-12-13 19:04:01,418 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1469486634] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 19:04:01,418 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 19:04:01,418 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 19:04:01,419 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [843815513] [2022-12-13 19:04:01,419 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 19:04:01,419 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 19:04:01,419 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 19:04:01,420 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 19:04:01,420 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-12-13 19:04:01,509 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 78 out of 197 [2022-12-13 19:04:01,510 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 28 transitions, 179 flow. Second operand has 7 states, 7 states have (on average 79.28571428571429) internal successors, (555), 7 states have internal predecessors, (555), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:04:01,510 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 19:04:01,511 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 78 of 197 [2022-12-13 19:04:01,511 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 19:04:01,611 INFO L130 PetriNetUnfolder]: 16/55 cut-off events. [2022-12-13 19:04:01,612 INFO L131 PetriNetUnfolder]: For 45/45 co-relation queries the response was YES. [2022-12-13 19:04:01,612 INFO L83 FinitePrefix]: Finished finitePrefix Result has 199 conditions, 55 events. 16/55 cut-off events. For 45/45 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 113 event pairs, 3 based on Foata normal form. 0/53 useless extension candidates. Maximal degree in co-relation 177. Up to 17 conditions per place. [2022-12-13 19:04:01,612 INFO L137 encePairwiseOnDemand]: 191/197 looper letters, 25 selfloop transitions, 6 changer transitions 4/35 dead transitions. [2022-12-13 19:04:01,613 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 53 places, 35 transitions, 261 flow [2022-12-13 19:04:01,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 19:04:01,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-13 19:04:01,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 494 transitions. [2022-12-13 19:04:01,615 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4179357021996616 [2022-12-13 19:04:01,615 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 494 transitions. [2022-12-13 19:04:01,615 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 494 transitions. [2022-12-13 19:04:01,615 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 19:04:01,615 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 494 transitions. [2022-12-13 19:04:01,617 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 82.33333333333333) internal successors, (494), 6 states have internal predecessors, (494), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:04:01,619 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 197.0) internal successors, (1379), 7 states have internal predecessors, (1379), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:04:01,619 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 197.0) internal successors, (1379), 7 states have internal predecessors, (1379), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:04:01,619 INFO L175 Difference]: Start difference. First operand has 49 places, 28 transitions, 179 flow. Second operand 6 states and 494 transitions. [2022-12-13 19:04:01,619 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 53 places, 35 transitions, 261 flow [2022-12-13 19:04:01,622 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 35 transitions, 213 flow, removed 19 selfloop flow, removed 5 redundant places. [2022-12-13 19:04:01,623 INFO L231 Difference]: Finished difference. Result has 48 places, 27 transitions, 137 flow [2022-12-13 19:04:01,623 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=197, PETRI_DIFFERENCE_MINUEND_FLOW=125, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=27, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=137, PETRI_PLACES=48, PETRI_TRANSITIONS=27} [2022-12-13 19:04:01,624 INFO L288 CegarLoopForPetriNet]: 23 programPoint places, 25 predicate places. [2022-12-13 19:04:01,624 INFO L495 AbstractCegarLoop]: Abstraction has has 48 places, 27 transitions, 137 flow [2022-12-13 19:04:01,624 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 79.28571428571429) internal successors, (555), 7 states have internal predecessors, (555), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:04:01,624 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 19:04:01,624 INFO L209 CegarLoopForPetriNet]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 19:04:01,624 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-13 19:04:01,625 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2022-12-13 19:04:01,625 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 19:04:01,625 INFO L85 PathProgramCache]: Analyzing trace with hash -1761851378, now seen corresponding path program 1 times [2022-12-13 19:04:01,625 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 19:04:01,625 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1865469709] [2022-12-13 19:04:01,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:04:01,626 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 19:04:01,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:04:01,883 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-12-13 19:04:01,883 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 19:04:01,883 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1865469709] [2022-12-13 19:04:01,883 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1865469709] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 19:04:01,883 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 19:04:01,883 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 19:04:01,884 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [172858494] [2022-12-13 19:04:01,884 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 19:04:01,884 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 19:04:01,884 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 19:04:01,884 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 19:04:01,885 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-12-13 19:04:01,966 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 197 [2022-12-13 19:04:01,966 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 27 transitions, 137 flow. Second operand has 7 states, 7 states have (on average 78.28571428571429) internal successors, (548), 7 states have internal predecessors, (548), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:04:01,967 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 19:04:01,967 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 197 [2022-12-13 19:04:01,967 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 19:04:02,059 INFO L130 PetriNetUnfolder]: 13/48 cut-off events. [2022-12-13 19:04:02,059 INFO L131 PetriNetUnfolder]: For 68/68 co-relation queries the response was YES. [2022-12-13 19:04:02,059 INFO L83 FinitePrefix]: Finished finitePrefix Result has 168 conditions, 48 events. 13/48 cut-off events. For 68/68 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 84 event pairs, 2 based on Foata normal form. 2/48 useless extension candidates. Maximal degree in co-relation 146. Up to 16 conditions per place. [2022-12-13 19:04:02,060 INFO L137 encePairwiseOnDemand]: 191/197 looper letters, 21 selfloop transitions, 4 changer transitions 7/32 dead transitions. [2022-12-13 19:04:02,060 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 53 places, 32 transitions, 207 flow [2022-12-13 19:04:02,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-13 19:04:02,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-12-13 19:04:02,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 562 transitions. [2022-12-13 19:04:02,061 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4075416968817984 [2022-12-13 19:04:02,061 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 562 transitions. [2022-12-13 19:04:02,061 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 562 transitions. [2022-12-13 19:04:02,061 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 19:04:02,062 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 562 transitions. [2022-12-13 19:04:02,062 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 80.28571428571429) internal successors, (562), 7 states have internal predecessors, (562), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:04:02,063 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 197.0) internal successors, (1576), 8 states have internal predecessors, (1576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:04:02,064 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 197.0) internal successors, (1576), 8 states have internal predecessors, (1576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:04:02,064 INFO L175 Difference]: Start difference. First operand has 48 places, 27 transitions, 137 flow. Second operand 7 states and 562 transitions. [2022-12-13 19:04:02,064 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 53 places, 32 transitions, 207 flow [2022-12-13 19:04:02,065 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 32 transitions, 196 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-12-13 19:04:02,065 INFO L231 Difference]: Finished difference. Result has 49 places, 23 transitions, 119 flow [2022-12-13 19:04:02,065 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=197, PETRI_DIFFERENCE_MINUEND_FLOW=120, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=26, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=119, PETRI_PLACES=49, PETRI_TRANSITIONS=23} [2022-12-13 19:04:02,066 INFO L288 CegarLoopForPetriNet]: 23 programPoint places, 26 predicate places. [2022-12-13 19:04:02,066 INFO L495 AbstractCegarLoop]: Abstraction has has 49 places, 23 transitions, 119 flow [2022-12-13 19:04:02,066 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 78.28571428571429) internal successors, (548), 7 states have internal predecessors, (548), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:04:02,066 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 19:04:02,066 INFO L209 CegarLoopForPetriNet]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 19:04:02,066 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-13 19:04:02,066 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2022-12-13 19:04:02,067 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 19:04:02,067 INFO L85 PathProgramCache]: Analyzing trace with hash -1763236331, now seen corresponding path program 1 times [2022-12-13 19:04:02,067 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 19:04:02,067 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [586624182] [2022-12-13 19:04:02,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:04:02,067 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 19:04:02,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:04:02,343 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-12-13 19:04:02,343 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 19:04:02,343 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [586624182] [2022-12-13 19:04:02,343 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [586624182] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 19:04:02,343 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 19:04:02,343 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 19:04:02,343 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [215745012] [2022-12-13 19:04:02,344 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 19:04:02,344 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 19:04:02,344 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 19:04:02,344 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 19:04:02,344 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-12-13 19:04:02,459 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 78 out of 197 [2022-12-13 19:04:02,460 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 23 transitions, 119 flow. Second operand has 7 states, 7 states have (on average 79.28571428571429) internal successors, (555), 7 states have internal predecessors, (555), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:04:02,460 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 19:04:02,460 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 78 of 197 [2022-12-13 19:04:02,461 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 19:04:02,556 INFO L130 PetriNetUnfolder]: 8/37 cut-off events. [2022-12-13 19:04:02,557 INFO L131 PetriNetUnfolder]: For 65/65 co-relation queries the response was YES. [2022-12-13 19:04:02,557 INFO L83 FinitePrefix]: Finished finitePrefix Result has 141 conditions, 37 events. 8/37 cut-off events. For 65/65 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 39 event pairs, 3 based on Foata normal form. 0/35 useless extension candidates. Maximal degree in co-relation 119. Up to 15 conditions per place. [2022-12-13 19:04:02,557 INFO L137 encePairwiseOnDemand]: 191/197 looper letters, 20 selfloop transitions, 9 changer transitions 0/29 dead transitions. [2022-12-13 19:04:02,557 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 29 transitions, 201 flow [2022-12-13 19:04:02,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-13 19:04:02,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2022-12-13 19:04:02,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 644 transitions. [2022-12-13 19:04:02,559 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4086294416243655 [2022-12-13 19:04:02,559 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 644 transitions. [2022-12-13 19:04:02,559 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 644 transitions. [2022-12-13 19:04:02,559 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 19:04:02,559 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 644 transitions. [2022-12-13 19:04:02,560 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 80.5) internal successors, (644), 8 states have internal predecessors, (644), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:04:02,561 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 197.0) internal successors, (1773), 9 states have internal predecessors, (1773), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:04:02,561 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 197.0) internal successors, (1773), 9 states have internal predecessors, (1773), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:04:02,562 INFO L175 Difference]: Start difference. First operand has 49 places, 23 transitions, 119 flow. Second operand 8 states and 644 transitions. [2022-12-13 19:04:02,562 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 29 transitions, 201 flow [2022-12-13 19:04:02,562 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 29 transitions, 192 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-12-13 19:04:02,563 INFO L231 Difference]: Finished difference. Result has 49 places, 27 transitions, 158 flow [2022-12-13 19:04:02,563 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=197, PETRI_DIFFERENCE_MINUEND_FLOW=113, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=23, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=158, PETRI_PLACES=49, PETRI_TRANSITIONS=27} [2022-12-13 19:04:02,563 INFO L288 CegarLoopForPetriNet]: 23 programPoint places, 26 predicate places. [2022-12-13 19:04:02,564 INFO L495 AbstractCegarLoop]: Abstraction has has 49 places, 27 transitions, 158 flow [2022-12-13 19:04:02,564 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 79.28571428571429) internal successors, (555), 7 states have internal predecessors, (555), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:04:02,564 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 19:04:02,564 INFO L209 CegarLoopForPetriNet]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 19:04:02,564 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-12-13 19:04:02,564 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2022-12-13 19:04:02,564 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 19:04:02,564 INFO L85 PathProgramCache]: Analyzing trace with hash -1763262370, now seen corresponding path program 1 times [2022-12-13 19:04:02,565 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 19:04:02,565 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [8199286] [2022-12-13 19:04:02,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:04:02,565 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 19:04:02,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:04:02,800 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-12-13 19:04:02,800 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 19:04:02,800 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [8199286] [2022-12-13 19:04:02,800 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [8199286] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 19:04:02,800 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 19:04:02,800 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 19:04:02,800 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1346508149] [2022-12-13 19:04:02,801 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 19:04:02,801 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 19:04:02,801 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 19:04:02,801 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 19:04:02,801 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2022-12-13 19:04:02,875 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 79 out of 197 [2022-12-13 19:04:02,875 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 27 transitions, 158 flow. Second operand has 7 states, 7 states have (on average 80.28571428571429) internal successors, (562), 7 states have internal predecessors, (562), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:04:02,875 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 19:04:02,875 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 79 of 197 [2022-12-13 19:04:02,875 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 19:04:02,949 INFO L130 PetriNetUnfolder]: 5/32 cut-off events. [2022-12-13 19:04:02,949 INFO L131 PetriNetUnfolder]: For 74/74 co-relation queries the response was YES. [2022-12-13 19:04:02,949 INFO L83 FinitePrefix]: Finished finitePrefix Result has 136 conditions, 32 events. 5/32 cut-off events. For 74/74 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 25 event pairs, 0 based on Foata normal form. 4/36 useless extension candidates. Maximal degree in co-relation 112. Up to 15 conditions per place. [2022-12-13 19:04:02,949 INFO L137 encePairwiseOnDemand]: 192/197 looper letters, 17 selfloop transitions, 4 changer transitions 6/27 dead transitions. [2022-12-13 19:04:02,949 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 55 places, 27 transitions, 202 flow [2022-12-13 19:04:02,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-13 19:04:02,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2022-12-13 19:04:02,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 649 transitions. [2022-12-13 19:04:02,951 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4118020304568528 [2022-12-13 19:04:02,951 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 649 transitions. [2022-12-13 19:04:02,951 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 649 transitions. [2022-12-13 19:04:02,951 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 19:04:02,951 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 649 transitions. [2022-12-13 19:04:02,952 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 81.125) internal successors, (649), 8 states have internal predecessors, (649), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:04:02,953 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 197.0) internal successors, (1773), 9 states have internal predecessors, (1773), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:04:02,954 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 197.0) internal successors, (1773), 9 states have internal predecessors, (1773), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:04:02,954 INFO L175 Difference]: Start difference. First operand has 49 places, 27 transitions, 158 flow. Second operand 8 states and 649 transitions. [2022-12-13 19:04:02,954 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 55 places, 27 transitions, 202 flow [2022-12-13 19:04:02,955 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 50 places, 27 transitions, 185 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-12-13 19:04:02,955 INFO L231 Difference]: Finished difference. Result has 50 places, 20 transitions, 108 flow [2022-12-13 19:04:02,955 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=197, PETRI_DIFFERENCE_MINUEND_FLOW=127, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=25, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=108, PETRI_PLACES=50, PETRI_TRANSITIONS=20} [2022-12-13 19:04:02,955 INFO L288 CegarLoopForPetriNet]: 23 programPoint places, 27 predicate places. [2022-12-13 19:04:02,955 INFO L495 AbstractCegarLoop]: Abstraction has has 50 places, 20 transitions, 108 flow [2022-12-13 19:04:02,956 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 80.28571428571429) internal successors, (562), 7 states have internal predecessors, (562), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:04:02,956 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 19:04:02,956 INFO L209 CegarLoopForPetriNet]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 19:04:02,956 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-12-13 19:04:02,956 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2022-12-13 19:04:02,956 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 19:04:02,956 INFO L85 PathProgramCache]: Analyzing trace with hash -1763262371, now seen corresponding path program 2 times [2022-12-13 19:04:02,956 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 19:04:02,956 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1484831687] [2022-12-13 19:04:02,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:04:02,957 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 19:04:02,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:04:03,156 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-12-13 19:04:03,157 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 19:04:03,157 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1484831687] [2022-12-13 19:04:03,157 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1484831687] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 19:04:03,157 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 19:04:03,157 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 19:04:03,157 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [375795800] [2022-12-13 19:04:03,157 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 19:04:03,157 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 19:04:03,158 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 19:04:03,158 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 19:04:03,158 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2022-12-13 19:04:03,219 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 79 out of 197 [2022-12-13 19:04:03,219 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 50 places, 20 transitions, 108 flow. Second operand has 7 states, 7 states have (on average 80.28571428571429) internal successors, (562), 7 states have internal predecessors, (562), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:04:03,220 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 19:04:03,220 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 79 of 197 [2022-12-13 19:04:03,220 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 19:04:03,266 INFO L130 PetriNetUnfolder]: 2/21 cut-off events. [2022-12-13 19:04:03,266 INFO L131 PetriNetUnfolder]: For 52/52 co-relation queries the response was YES. [2022-12-13 19:04:03,266 INFO L83 FinitePrefix]: Finished finitePrefix Result has 95 conditions, 21 events. 2/21 cut-off events. For 52/52 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 4 event pairs, 0 based on Foata normal form. 2/23 useless extension candidates. Maximal degree in co-relation 78. Up to 15 conditions per place. [2022-12-13 19:04:03,267 INFO L137 encePairwiseOnDemand]: 192/197 looper letters, 0 selfloop transitions, 0 changer transitions 20/20 dead transitions. [2022-12-13 19:04:03,267 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 20 transitions, 144 flow [2022-12-13 19:04:03,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 19:04:03,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-13 19:04:03,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 485 transitions. [2022-12-13 19:04:03,269 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4103214890016921 [2022-12-13 19:04:03,269 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 485 transitions. [2022-12-13 19:04:03,269 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 485 transitions. [2022-12-13 19:04:03,270 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 19:04:03,270 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 485 transitions. [2022-12-13 19:04:03,271 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 80.83333333333333) internal successors, (485), 6 states have internal predecessors, (485), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:04:03,272 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 197.0) internal successors, (1379), 7 states have internal predecessors, (1379), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:04:03,272 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 197.0) internal successors, (1379), 7 states have internal predecessors, (1379), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:04:03,272 INFO L175 Difference]: Start difference. First operand has 50 places, 20 transitions, 108 flow. Second operand 6 states and 485 transitions. [2022-12-13 19:04:03,272 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 20 transitions, 144 flow [2022-12-13 19:04:03,273 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 20 transitions, 131 flow, removed 1 selfloop flow, removed 6 redundant places. [2022-12-13 19:04:03,273 INFO L231 Difference]: Finished difference. Result has 42 places, 0 transitions, 0 flow [2022-12-13 19:04:03,273 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=197, PETRI_DIFFERENCE_MINUEND_FLOW=89, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=19, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=42, PETRI_TRANSITIONS=0} [2022-12-13 19:04:03,273 INFO L288 CegarLoopForPetriNet]: 23 programPoint places, 19 predicate places. [2022-12-13 19:04:03,273 INFO L495 AbstractCegarLoop]: Abstraction has has 42 places, 0 transitions, 0 flow [2022-12-13 19:04:03,274 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 80.28571428571429) internal successors, (562), 7 states have internal predecessors, (562), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:04:03,275 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 13 remaining) [2022-12-13 19:04:03,276 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 13 remaining) [2022-12-13 19:04:03,276 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 13 remaining) [2022-12-13 19:04:03,276 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 13 remaining) [2022-12-13 19:04:03,276 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 13 remaining) [2022-12-13 19:04:03,276 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 13 remaining) [2022-12-13 19:04:03,276 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 13 remaining) [2022-12-13 19:04:03,276 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 13 remaining) [2022-12-13 19:04:03,276 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 13 remaining) [2022-12-13 19:04:03,276 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 13 remaining) [2022-12-13 19:04:03,277 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 13 remaining) [2022-12-13 19:04:03,277 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 13 remaining) [2022-12-13 19:04:03,277 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 13 remaining) [2022-12-13 19:04:03,277 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-12-13 19:04:03,277 INFO L445 BasicCegarLoop]: Path program histogram: [2, 2, 2, 1, 1, 1, 1] [2022-12-13 19:04:03,281 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-13 19:04:03,281 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-13 19:04:03,283 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.12 07:04:03 BasicIcfg [2022-12-13 19:04:03,283 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-13 19:04:03,284 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 19:04:03,284 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 19:04:03,284 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 19:04:03,284 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 07:03:57" (3/4) ... [2022-12-13 19:04:03,286 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-12-13 19:04:03,291 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2022-12-13 19:04:03,293 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2022-12-13 19:04:03,294 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2022-12-13 19:04:03,294 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-12-13 19:04:03,317 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8646e8d5-6080-43b6-aef1-cbc69bd00115/bin/uautomizer-uyxdKDjOR8/witness.graphml [2022-12-13 19:04:03,317 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 19:04:03,317 INFO L158 Benchmark]: Toolchain (without parser) took 7028.34ms. Allocated memory was 134.2MB in the beginning and 161.5MB in the end (delta: 27.3MB). Free memory was 97.3MB in the beginning and 64.4MB in the end (delta: 33.0MB). Peak memory consumption was 60.6MB. Max. memory is 16.1GB. [2022-12-13 19:04:03,317 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 134.2MB. Free memory is still 104.8MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 19:04:03,318 INFO L158 Benchmark]: CACSL2BoogieTranslator took 485.14ms. Allocated memory is still 134.2MB. Free memory was 96.9MB in the beginning and 69.2MB in the end (delta: 27.7MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2022-12-13 19:04:03,318 INFO L158 Benchmark]: Boogie Procedure Inliner took 34.08ms. Allocated memory is still 134.2MB. Free memory was 69.2MB in the beginning and 67.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 19:04:03,318 INFO L158 Benchmark]: Boogie Preprocessor took 25.24ms. Allocated memory is still 134.2MB. Free memory was 67.1MB in the beginning and 65.4MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 19:04:03,318 INFO L158 Benchmark]: RCFGBuilder took 293.97ms. Allocated memory is still 134.2MB. Free memory was 65.4MB in the beginning and 51.2MB in the end (delta: 14.3MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-12-13 19:04:03,318 INFO L158 Benchmark]: TraceAbstraction took 6150.42ms. Allocated memory was 134.2MB in the beginning and 161.5MB in the end (delta: 27.3MB). Free memory was 50.7MB in the beginning and 66.5MB in the end (delta: -15.7MB). Peak memory consumption was 14.5MB. Max. memory is 16.1GB. [2022-12-13 19:04:03,319 INFO L158 Benchmark]: Witness Printer took 33.34ms. Allocated memory is still 161.5MB. Free memory was 66.5MB in the beginning and 64.4MB in the end (delta: 2.1MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 19:04:03,320 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 134.2MB. Free memory is still 104.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 485.14ms. Allocated memory is still 134.2MB. Free memory was 96.9MB in the beginning and 69.2MB in the end (delta: 27.7MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 34.08ms. Allocated memory is still 134.2MB. Free memory was 69.2MB in the beginning and 67.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 25.24ms. Allocated memory is still 134.2MB. Free memory was 67.1MB in the beginning and 65.4MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 293.97ms. Allocated memory is still 134.2MB. Free memory was 65.4MB in the beginning and 51.2MB in the end (delta: 14.3MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 6150.42ms. Allocated memory was 134.2MB in the beginning and 161.5MB in the end (delta: 27.3MB). Free memory was 50.7MB in the beginning and 66.5MB in the end (delta: -15.7MB). Peak memory consumption was 14.5MB. Max. memory is 16.1GB. * Witness Printer took 33.34ms. Allocated memory is still 161.5MB. Free memory was 66.5MB in the beginning and 64.4MB in the end (delta: 2.1MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1.6s, 93 PlacesBefore, 23 PlacesAfterwards, 93 TransitionsBefore, 20 TransitionsAfterwards, 1360 CoEnabledTransitionPairs, 6 FixpointIterations, 36 TrivialSequentialCompositions, 55 ConcurrentSequentialCompositions, 6 TrivialYvCompositions, 3 ConcurrentYvCompositions, 3 ChoiceCompositions, 103 TotalNumberOfCompositions, 1954 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1532, independent: 1431, independent conditional: 0, independent unconditional: 1431, dependent: 101, dependent conditional: 0, dependent unconditional: 101, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 810, independent: 788, independent conditional: 0, independent unconditional: 788, dependent: 22, dependent conditional: 0, dependent unconditional: 22, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1532, independent: 643, independent conditional: 0, independent unconditional: 643, dependent: 79, dependent conditional: 0, dependent unconditional: 79, unknown: 810, unknown conditional: 0, unknown unconditional: 810] , Statistics on independence cache: Total cache size (in pairs): 40, Positive cache size: 30, Positive conditional cache size: 0, Positive unconditional cache size: 30, Negative cache size: 10, Negative conditional cache size: 0, Negative unconditional cache size: 10, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 937]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 937]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 944]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 944]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 931]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 931]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 932]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 932]: 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, 126 locations, 13 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 6.0s, OverallIterations: 10, TraceHistogramMax: 10, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 1.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.7s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 761 SdHoareTripleChecker+Valid, 0.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 534 mSDsluCounter, 378 SdHoareTripleChecker+Invalid, 0.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 272 mSDsCounter, 86 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1295 IncrementalHoareTripleChecker+Invalid, 1381 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 86 mSolverCounterUnsat, 106 mSDtfsCounter, 1295 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 99 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=179occurred in iteration=5, InterpolantAutomatonStates: 63, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.8s InterpolantComputationTime, 151 NumberOfCodeBlocks, 147 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 154 ConstructedInterpolants, 0 QuantifiedInterpolants, 1181 SizeOfPredicates, 3 NumberOfNonLiveVariables, 319 ConjunctsInSsa, 21 ConjunctsInUnsatCore, 15 InterpolantComputations, 8 PerfectInterpolantSequences, 285/328 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 8 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-12-13 19:04:03,332 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8646e8d5-6080-43b6-aef1-cbc69bd00115/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE