./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/weaver/chl-file-item-subst.wvr.c --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_07acf7f4-9260-45a0-bc16-e6d27b769274/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07acf7f4-9260-45a0-bc16-e6d27b769274/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_07acf7f4-9260-45a0-bc16-e6d27b769274/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07acf7f4-9260-45a0-bc16-e6d27b769274/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/chl-file-item-subst.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07acf7f4-9260-45a0-bc16-e6d27b769274/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_07acf7f4-9260-45a0-bc16-e6d27b769274/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 be2a0d1eee532c8ad9f827ec91fa18dbacb100bdaebd8afe9a7f9b56098458ea --- 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 17:42:41,782 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 17:42:41,783 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 17:42:41,795 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 17:42:41,795 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 17:42:41,796 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 17:42:41,797 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 17:42:41,798 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 17:42:41,799 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 17:42:41,799 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 17:42:41,800 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 17:42:41,801 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 17:42:41,801 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 17:42:41,802 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 17:42:41,803 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 17:42:41,803 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 17:42:41,804 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 17:42:41,804 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 17:42:41,805 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 17:42:41,806 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 17:42:41,807 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 17:42:41,808 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 17:42:41,809 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 17:42:41,810 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 17:42:41,812 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 17:42:41,812 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 17:42:41,812 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 17:42:41,813 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 17:42:41,813 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 17:42:41,814 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 17:42:41,814 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 17:42:41,815 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 17:42:41,815 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 17:42:41,816 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 17:42:41,816 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 17:42:41,816 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 17:42:41,817 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 17:42:41,817 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 17:42:41,817 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 17:42:41,818 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 17:42:41,818 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 17:42:41,819 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07acf7f4-9260-45a0-bc16-e6d27b769274/bin/uautomizer-uyxdKDjOR8/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-12-13 17:42:41,832 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 17:42:41,832 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 17:42:41,833 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 17:42:41,838 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 17:42:41,838 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 17:42:41,838 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 17:42:41,839 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 17:42:41,839 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 17:42:41,839 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 17:42:41,839 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 17:42:41,839 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 17:42:41,840 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-13 17:42:41,840 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 17:42:41,840 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 17:42:41,840 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 17:42:41,840 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 17:42:41,840 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 17:42:41,840 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 17:42:41,840 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-12-13 17:42:41,840 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 17:42:41,841 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 17:42:41,841 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 17:42:41,841 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 17:42:41,841 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 17:42:41,841 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 17:42:41,841 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 17:42:41,841 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 17:42:41,842 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 17:42:41,842 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 17:42:41,842 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 17:42:41,842 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 17:42:41,842 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 17:42:41,842 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 17:42:41,842 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 17:42:41,842 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 17:42:41,842 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 17:42:41,843 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 17:42:41,843 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_07acf7f4-9260-45a0-bc16-e6d27b769274/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07acf7f4-9260-45a0-bc16-e6d27b769274/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> be2a0d1eee532c8ad9f827ec91fa18dbacb100bdaebd8afe9a7f9b56098458ea [2022-12-13 17:42:42,025 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 17:42:42,041 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 17:42:42,043 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 17:42:42,044 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 17:42:42,044 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 17:42:42,046 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07acf7f4-9260-45a0-bc16-e6d27b769274/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/weaver/chl-file-item-subst.wvr.c [2022-12-13 17:42:44,677 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 17:42:44,811 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 17:42:44,811 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07acf7f4-9260-45a0-bc16-e6d27b769274/sv-benchmarks/c/weaver/chl-file-item-subst.wvr.c [2022-12-13 17:42:44,816 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07acf7f4-9260-45a0-bc16-e6d27b769274/bin/uautomizer-uyxdKDjOR8/data/b63575a5c/22d3d64c92fd4101a8935a078df7defe/FLAG0bf4d4237 [2022-12-13 17:42:44,826 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07acf7f4-9260-45a0-bc16-e6d27b769274/bin/uautomizer-uyxdKDjOR8/data/b63575a5c/22d3d64c92fd4101a8935a078df7defe [2022-12-13 17:42:44,828 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 17:42:44,829 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 17:42:44,830 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 17:42:44,830 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 17:42:44,833 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 17:42:44,834 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 05:42:44" (1/1) ... [2022-12-13 17:42:44,835 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3897f9fe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:42:44, skipping insertion in model container [2022-12-13 17:42:44,835 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 05:42:44" (1/1) ... [2022-12-13 17:42:44,842 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 17:42:44,860 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 17:42:44,991 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07acf7f4-9260-45a0-bc16-e6d27b769274/sv-benchmarks/c/weaver/chl-file-item-subst.wvr.c[3015,3028] [2022-12-13 17:42:44,996 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 17:42:45,005 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 17:42:45,025 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07acf7f4-9260-45a0-bc16-e6d27b769274/sv-benchmarks/c/weaver/chl-file-item-subst.wvr.c[3015,3028] [2022-12-13 17:42:45,028 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 17:42:45,040 INFO L208 MainTranslator]: Completed translation [2022-12-13 17:42:45,040 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:42:45 WrapperNode [2022-12-13 17:42:45,040 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 17:42:45,041 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 17:42:45,042 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 17:42:45,042 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 17:42:45,048 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:42:45" (1/1) ... [2022-12-13 17:42:45,056 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:42:45" (1/1) ... [2022-12-13 17:42:45,075 INFO L138 Inliner]: procedures = 23, calls = 31, calls flagged for inlining = 9, calls inlined = 13, statements flattened = 239 [2022-12-13 17:42:45,075 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 17:42:45,076 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 17:42:45,076 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 17:42:45,076 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 17:42:45,083 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:42:45" (1/1) ... [2022-12-13 17:42:45,083 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:42:45" (1/1) ... [2022-12-13 17:42:45,085 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:42:45" (1/1) ... [2022-12-13 17:42:45,086 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:42:45" (1/1) ... [2022-12-13 17:42:45,090 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:42:45" (1/1) ... [2022-12-13 17:42:45,092 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:42:45" (1/1) ... [2022-12-13 17:42:45,093 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:42:45" (1/1) ... [2022-12-13 17:42:45,094 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:42:45" (1/1) ... [2022-12-13 17:42:45,097 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 17:42:45,097 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 17:42:45,098 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 17:42:45,098 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 17:42:45,099 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:42:45" (1/1) ... [2022-12-13 17:42:45,104 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 17:42:45,113 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07acf7f4-9260-45a0-bc16-e6d27b769274/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 17:42:45,124 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07acf7f4-9260-45a0-bc16-e6d27b769274/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 17:42:45,126 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07acf7f4-9260-45a0-bc16-e6d27b769274/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 17:42:45,156 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 17:42:45,156 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-12-13 17:42:45,157 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-12-13 17:42:45,157 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-12-13 17:42:45,157 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-12-13 17:42:45,157 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-12-13 17:42:45,157 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-12-13 17:42:45,157 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 17:42:45,157 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 17:42:45,158 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-13 17:42:45,158 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 17:42:45,158 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 17:42:45,158 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-13 17:42:45,158 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 17:42:45,160 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 17:42:45,252 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 17:42:45,254 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 17:42:45,614 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 17:42:45,626 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 17:42:45,627 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-13 17:42:45,629 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 05:42:45 BoogieIcfgContainer [2022-12-13 17:42:45,630 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 17:42:45,633 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 17:42:45,633 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 17:42:45,636 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 17:42:45,636 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 05:42:44" (1/3) ... [2022-12-13 17:42:45,637 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b58018 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 05:42:45, skipping insertion in model container [2022-12-13 17:42:45,637 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:42:45" (2/3) ... [2022-12-13 17:42:45,637 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b58018 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 05:42:45, skipping insertion in model container [2022-12-13 17:42:45,637 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 05:42:45" (3/3) ... [2022-12-13 17:42:45,639 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-file-item-subst.wvr.c [2022-12-13 17:42:45,646 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-12-13 17:42:45,655 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 17:42:45,656 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 18 error locations. [2022-12-13 17:42:45,656 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-13 17:42:45,767 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-12-13 17:42:45,804 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 305 places, 321 transitions, 666 flow [2022-12-13 17:42:45,939 INFO L130 PetriNetUnfolder]: 26/318 cut-off events. [2022-12-13 17:42:45,939 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-12-13 17:42:45,947 INFO L83 FinitePrefix]: Finished finitePrefix Result has 331 conditions, 318 events. 26/318 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 879 event pairs, 0 based on Foata normal form. 0/274 useless extension candidates. Maximal degree in co-relation 235. Up to 2 conditions per place. [2022-12-13 17:42:45,947 INFO L82 GeneralOperation]: Start removeDead. Operand has 305 places, 321 transitions, 666 flow [2022-12-13 17:42:45,955 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 275 places, 289 transitions, 593 flow [2022-12-13 17:42:45,958 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2022-12-13 17:42:45,968 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 275 places, 289 transitions, 593 flow [2022-12-13 17:42:45,971 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 275 places, 289 transitions, 593 flow [2022-12-13 17:42:45,972 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 275 places, 289 transitions, 593 flow [2022-12-13 17:42:46,035 INFO L130 PetriNetUnfolder]: 24/289 cut-off events. [2022-12-13 17:42:46,035 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-12-13 17:42:46,038 INFO L83 FinitePrefix]: Finished finitePrefix Result has 301 conditions, 289 events. 24/289 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 867 event pairs, 0 based on Foata normal form. 0/247 useless extension candidates. Maximal degree in co-relation 235. Up to 2 conditions per place. [2022-12-13 17:42:46,049 INFO L119 LiptonReduction]: Number of co-enabled transitions 36288 [2022-12-13 17:42:59,479 INFO L134 LiptonReduction]: Checked pairs total: 34450 [2022-12-13 17:42:59,479 INFO L136 LiptonReduction]: Total number of compositions: 387 [2022-12-13 17:42:59,494 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 17:42:59,499 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;@4d9fda87, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 17:42:59,499 INFO L358 AbstractCegarLoop]: Starting to check reachability of 39 error locations. [2022-12-13 17:42:59,502 INFO L130 PetriNetUnfolder]: 0/3 cut-off events. [2022-12-13 17:42:59,502 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 17:42:59,502 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 17:42:59,503 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2022-12-13 17:42:59,503 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2022-12-13 17:42:59,507 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:42:59,507 INFO L85 PathProgramCache]: Analyzing trace with hash 1347821, now seen corresponding path program 1 times [2022-12-13 17:42:59,513 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:42:59,514 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [83990513] [2022-12-13 17:42:59,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:42:59,514 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:42:59,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:42:59,685 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 17:42:59,685 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:42:59,685 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [83990513] [2022-12-13 17:42:59,686 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [83990513] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:42:59,686 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:42:59,686 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-13 17:42:59,687 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1894049537] [2022-12-13 17:42:59,688 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:42:59,694 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 17:42:59,694 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:42:59,708 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 17:42:59,709 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 17:42:59,722 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 304 out of 708 [2022-12-13 17:42:59,725 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 32 transitions, 79 flow. Second operand has 3 states, 3 states have (on average 305.0) internal successors, (915), 3 states have internal predecessors, (915), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:42:59,726 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 17:42:59,726 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 304 of 708 [2022-12-13 17:42:59,726 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 17:42:59,985 INFO L130 PetriNetUnfolder]: 793/1234 cut-off events. [2022-12-13 17:42:59,986 INFO L131 PetriNetUnfolder]: For 35/35 co-relation queries the response was YES. [2022-12-13 17:42:59,987 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2580 conditions, 1234 events. 793/1234 cut-off events. For 35/35 co-relation queries the response was YES. Maximal size of possible extension queue 146. Compared 5425 event pairs, 793 based on Foata normal form. 0/510 useless extension candidates. Maximal degree in co-relation 2182. Up to 1234 conditions per place. [2022-12-13 17:42:59,991 INFO L137 encePairwiseOnDemand]: 699/708 looper letters, 23 selfloop transitions, 1 changer transitions 0/24 dead transitions. [2022-12-13 17:42:59,991 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 36 places, 24 transitions, 111 flow [2022-12-13 17:42:59,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 17:42:59,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 17:43:00,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 944 transitions. [2022-12-13 17:43:00,003 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4444444444444444 [2022-12-13 17:43:00,004 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 944 transitions. [2022-12-13 17:43:00,004 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 944 transitions. [2022-12-13 17:43:00,006 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 17:43:00,008 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 944 transitions. [2022-12-13 17:43:00,011 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 314.6666666666667) internal successors, (944), 3 states have internal predecessors, (944), 0 states have call successors, (0), 0 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 17:43:00,017 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 708.0) internal successors, (2832), 4 states have internal predecessors, (2832), 0 states have call successors, (0), 0 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 17:43:00,018 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 708.0) internal successors, (2832), 4 states have internal predecessors, (2832), 0 states have call successors, (0), 0 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 17:43:00,020 INFO L175 Difference]: Start difference. First operand has 42 places, 32 transitions, 79 flow. Second operand 3 states and 944 transitions. [2022-12-13 17:43:00,020 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 36 places, 24 transitions, 111 flow [2022-12-13 17:43:00,026 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 31 places, 24 transitions, 102 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-12-13 17:43:00,027 INFO L231 Difference]: Finished difference. Result has 31 places, 24 transitions, 56 flow [2022-12-13 17:43:00,028 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=708, PETRI_DIFFERENCE_MINUEND_FLOW=54, PETRI_DIFFERENCE_MINUEND_PLACES=29, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=24, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=56, PETRI_PLACES=31, PETRI_TRANSITIONS=24} [2022-12-13 17:43:00,031 INFO L288 CegarLoopForPetriNet]: 42 programPoint places, -11 predicate places. [2022-12-13 17:43:00,031 INFO L495 AbstractCegarLoop]: Abstraction has has 31 places, 24 transitions, 56 flow [2022-12-13 17:43:00,032 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 305.0) internal successors, (915), 3 states have internal predecessors, (915), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:43:00,032 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 17:43:00,032 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2022-12-13 17:43:00,032 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 17:43:00,032 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2022-12-13 17:43:00,033 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:43:00,033 INFO L85 PathProgramCache]: Analyzing trace with hash 1347846, now seen corresponding path program 1 times [2022-12-13 17:43:00,033 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:43:00,033 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [996671224] [2022-12-13 17:43:00,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:43:00,033 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:43:00,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:43:00,094 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 17:43:00,094 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:43:00,094 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [996671224] [2022-12-13 17:43:00,094 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [996671224] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:43:00,095 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:43:00,095 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-13 17:43:00,095 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [52134085] [2022-12-13 17:43:00,095 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:43:00,096 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 17:43:00,096 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:43:00,096 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 17:43:00,097 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 17:43:00,103 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 304 out of 708 [2022-12-13 17:43:00,105 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 31 places, 24 transitions, 56 flow. Second operand has 3 states, 3 states have (on average 305.0) internal successors, (915), 3 states have internal predecessors, (915), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:43:00,106 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 17:43:00,106 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 304 of 708 [2022-12-13 17:43:00,106 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 17:43:00,312 INFO L130 PetriNetUnfolder]: 517/822 cut-off events. [2022-12-13 17:43:00,313 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 17:43:00,313 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1701 conditions, 822 events. 517/822 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 93. Compared 3362 event pairs, 517 based on Foata normal form. 0/382 useless extension candidates. Maximal degree in co-relation 1695. Up to 822 conditions per place. [2022-12-13 17:43:00,316 INFO L137 encePairwiseOnDemand]: 705/708 looper letters, 21 selfloop transitions, 1 changer transitions 0/22 dead transitions. [2022-12-13 17:43:00,316 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 31 places, 22 transitions, 96 flow [2022-12-13 17:43:00,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 17:43:00,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 17:43:00,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 936 transitions. [2022-12-13 17:43:00,320 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4406779661016949 [2022-12-13 17:43:00,320 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 936 transitions. [2022-12-13 17:43:00,320 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 936 transitions. [2022-12-13 17:43:00,321 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 17:43:00,321 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 936 transitions. [2022-12-13 17:43:00,323 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 312.0) internal successors, (936), 3 states have internal predecessors, (936), 0 states have call successors, (0), 0 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 17:43:00,327 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 708.0) internal successors, (2832), 4 states have internal predecessors, (2832), 0 states have call successors, (0), 0 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 17:43:00,329 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 708.0) internal successors, (2832), 4 states have internal predecessors, (2832), 0 states have call successors, (0), 0 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 17:43:00,329 INFO L175 Difference]: Start difference. First operand has 31 places, 24 transitions, 56 flow. Second operand 3 states and 936 transitions. [2022-12-13 17:43:00,329 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 31 places, 22 transitions, 96 flow [2022-12-13 17:43:00,329 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 30 places, 22 transitions, 95 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-13 17:43:00,330 INFO L231 Difference]: Finished difference. Result has 30 places, 22 transitions, 53 flow [2022-12-13 17:43:00,330 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=708, PETRI_DIFFERENCE_MINUEND_FLOW=51, PETRI_DIFFERENCE_MINUEND_PLACES=28, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=53, PETRI_PLACES=30, PETRI_TRANSITIONS=22} [2022-12-13 17:43:00,331 INFO L288 CegarLoopForPetriNet]: 42 programPoint places, -12 predicate places. [2022-12-13 17:43:00,331 INFO L495 AbstractCegarLoop]: Abstraction has has 30 places, 22 transitions, 53 flow [2022-12-13 17:43:00,332 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 305.0) internal successors, (915), 3 states have internal predecessors, (915), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:43:00,332 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 17:43:00,332 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2022-12-13 17:43:00,332 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-13 17:43:00,332 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2022-12-13 17:43:00,333 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:43:00,333 INFO L85 PathProgramCache]: Analyzing trace with hash 1347869, now seen corresponding path program 1 times [2022-12-13 17:43:00,333 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:43:00,333 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [476195170] [2022-12-13 17:43:00,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:43:00,333 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:43:00,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:43:00,412 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 17:43:00,412 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:43:00,413 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [476195170] [2022-12-13 17:43:00,413 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [476195170] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:43:00,413 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:43:00,413 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-13 17:43:00,413 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [985474328] [2022-12-13 17:43:00,413 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:43:00,414 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 17:43:00,414 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:43:00,414 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 17:43:00,415 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 17:43:00,421 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 304 out of 708 [2022-12-13 17:43:00,421 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 30 places, 22 transitions, 53 flow. Second operand has 3 states, 3 states have (on average 305.0) internal successors, (915), 3 states have internal predecessors, (915), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:43:00,422 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 17:43:00,422 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 304 of 708 [2022-12-13 17:43:00,422 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 17:43:00,541 INFO L130 PetriNetUnfolder]: 323/528 cut-off events. [2022-12-13 17:43:00,541 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 17:43:00,542 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1095 conditions, 528 events. 323/528 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 58. Compared 1977 event pairs, 323 based on Foata normal form. 0/278 useless extension candidates. Maximal degree in co-relation 1088. Up to 528 conditions per place. [2022-12-13 17:43:00,543 INFO L137 encePairwiseOnDemand]: 705/708 looper letters, 19 selfloop transitions, 1 changer transitions 0/20 dead transitions. [2022-12-13 17:43:00,543 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 30 places, 20 transitions, 89 flow [2022-12-13 17:43:00,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 17:43:00,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 17:43:00,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 934 transitions. [2022-12-13 17:43:00,545 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4397363465160075 [2022-12-13 17:43:00,545 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 934 transitions. [2022-12-13 17:43:00,545 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 934 transitions. [2022-12-13 17:43:00,546 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 17:43:00,546 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 934 transitions. [2022-12-13 17:43:00,547 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 311.3333333333333) internal successors, (934), 3 states have internal predecessors, (934), 0 states have call successors, (0), 0 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 17:43:00,549 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 708.0) internal successors, (2832), 4 states have internal predecessors, (2832), 0 states have call successors, (0), 0 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 17:43:00,550 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 708.0) internal successors, (2832), 4 states have internal predecessors, (2832), 0 states have call successors, (0), 0 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 17:43:00,550 INFO L175 Difference]: Start difference. First operand has 30 places, 22 transitions, 53 flow. Second operand 3 states and 934 transitions. [2022-12-13 17:43:00,550 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 30 places, 20 transitions, 89 flow [2022-12-13 17:43:00,551 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 29 places, 20 transitions, 88 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-13 17:43:00,551 INFO L231 Difference]: Finished difference. Result has 29 places, 20 transitions, 50 flow [2022-12-13 17:43:00,551 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=708, PETRI_DIFFERENCE_MINUEND_FLOW=48, PETRI_DIFFERENCE_MINUEND_PLACES=27, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=20, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=50, PETRI_PLACES=29, PETRI_TRANSITIONS=20} [2022-12-13 17:43:00,552 INFO L288 CegarLoopForPetriNet]: 42 programPoint places, -13 predicate places. [2022-12-13 17:43:00,552 INFO L495 AbstractCegarLoop]: Abstraction has has 29 places, 20 transitions, 50 flow [2022-12-13 17:43:00,552 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 305.0) internal successors, (915), 3 states have internal predecessors, (915), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:43:00,553 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 17:43:00,553 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2022-12-13 17:43:00,553 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-13 17:43:00,553 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2022-12-13 17:43:00,553 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:43:00,553 INFO L85 PathProgramCache]: Analyzing trace with hash 1347868, now seen corresponding path program 1 times [2022-12-13 17:43:00,554 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:43:00,554 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1794287359] [2022-12-13 17:43:00,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:43:00,554 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:43:00,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:43:00,652 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 17:43:00,652 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:43:00,652 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1794287359] [2022-12-13 17:43:00,652 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1794287359] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:43:00,652 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:43:00,652 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-13 17:43:00,653 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [108901398] [2022-12-13 17:43:00,653 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:43:00,653 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 17:43:00,653 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:43:00,653 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 17:43:00,654 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 17:43:00,659 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 304 out of 708 [2022-12-13 17:43:00,660 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 29 places, 20 transitions, 50 flow. Second operand has 3 states, 3 states have (on average 305.0) internal successors, (915), 3 states have internal predecessors, (915), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:43:00,660 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 17:43:00,660 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 304 of 708 [2022-12-13 17:43:00,660 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 17:43:00,753 INFO L130 PetriNetUnfolder]: 173/298 cut-off events. [2022-12-13 17:43:00,753 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 17:43:00,753 INFO L83 FinitePrefix]: Finished finitePrefix Result has 621 conditions, 298 events. 173/298 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 988 event pairs, 173 based on Foata normal form. 0/190 useless extension candidates. Maximal degree in co-relation 613. Up to 298 conditions per place. [2022-12-13 17:43:00,754 INFO L137 encePairwiseOnDemand]: 705/708 looper letters, 17 selfloop transitions, 1 changer transitions 0/18 dead transitions. [2022-12-13 17:43:00,754 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 29 places, 18 transitions, 82 flow [2022-12-13 17:43:00,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 17:43:00,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 17:43:00,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 932 transitions. [2022-12-13 17:43:00,757 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4387947269303202 [2022-12-13 17:43:00,757 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 932 transitions. [2022-12-13 17:43:00,757 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 932 transitions. [2022-12-13 17:43:00,758 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 17:43:00,758 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 932 transitions. [2022-12-13 17:43:00,761 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 310.6666666666667) internal successors, (932), 3 states have internal predecessors, (932), 0 states have call successors, (0), 0 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 17:43:00,763 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 708.0) internal successors, (2832), 4 states have internal predecessors, (2832), 0 states have call successors, (0), 0 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 17:43:00,764 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 708.0) internal successors, (2832), 4 states have internal predecessors, (2832), 0 states have call successors, (0), 0 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 17:43:00,764 INFO L175 Difference]: Start difference. First operand has 29 places, 20 transitions, 50 flow. Second operand 3 states and 932 transitions. [2022-12-13 17:43:00,764 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 29 places, 18 transitions, 82 flow [2022-12-13 17:43:00,765 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 28 places, 18 transitions, 81 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-13 17:43:00,765 INFO L231 Difference]: Finished difference. Result has 28 places, 18 transitions, 47 flow [2022-12-13 17:43:00,765 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=708, PETRI_DIFFERENCE_MINUEND_FLOW=45, PETRI_DIFFERENCE_MINUEND_PLACES=26, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=18, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=47, PETRI_PLACES=28, PETRI_TRANSITIONS=18} [2022-12-13 17:43:00,766 INFO L288 CegarLoopForPetriNet]: 42 programPoint places, -14 predicate places. [2022-12-13 17:43:00,766 INFO L495 AbstractCegarLoop]: Abstraction has has 28 places, 18 transitions, 47 flow [2022-12-13 17:43:00,766 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 305.0) internal successors, (915), 3 states have internal predecessors, (915), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:43:00,767 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 17:43:00,767 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2022-12-13 17:43:00,767 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-13 17:43:00,767 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2022-12-13 17:43:00,767 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:43:00,767 INFO L85 PathProgramCache]: Analyzing trace with hash 1295216975, now seen corresponding path program 1 times [2022-12-13 17:43:00,767 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:43:00,767 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [409832020] [2022-12-13 17:43:00,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:43:00,767 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:43:00,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:43:00,819 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 17:43:00,819 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:43:00,819 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [409832020] [2022-12-13 17:43:00,819 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [409832020] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:43:00,819 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:43:00,820 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-13 17:43:00,820 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [548426795] [2022-12-13 17:43:00,820 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:43:00,820 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 17:43:00,820 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:43:00,821 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 17:43:00,821 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 17:43:00,827 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 304 out of 708 [2022-12-13 17:43:00,828 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 28 places, 18 transitions, 47 flow. Second operand has 3 states, 3 states have (on average 305.6666666666667) internal successors, (917), 3 states have internal predecessors, (917), 0 states have call successors, (0), 0 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 17:43:00,829 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 17:43:00,829 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 304 of 708 [2022-12-13 17:43:00,829 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 17:43:00,910 INFO L130 PetriNetUnfolder]: 93/170 cut-off events. [2022-12-13 17:43:00,910 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 17:43:00,911 INFO L83 FinitePrefix]: Finished finitePrefix Result has 362 conditions, 170 events. 93/170 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 463 event pairs, 93 based on Foata normal form. 0/128 useless extension candidates. Maximal degree in co-relation 353. Up to 170 conditions per place. [2022-12-13 17:43:00,911 INFO L137 encePairwiseOnDemand]: 705/708 looper letters, 15 selfloop transitions, 1 changer transitions 0/16 dead transitions. [2022-12-13 17:43:00,911 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 28 places, 16 transitions, 75 flow [2022-12-13 17:43:00,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 17:43:00,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 17:43:00,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 930 transitions. [2022-12-13 17:43:00,915 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4378531073446328 [2022-12-13 17:43:00,915 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 930 transitions. [2022-12-13 17:43:00,915 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 930 transitions. [2022-12-13 17:43:00,916 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 17:43:00,916 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 930 transitions. [2022-12-13 17:43:00,918 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 310.0) internal successors, (930), 3 states have internal predecessors, (930), 0 states have call successors, (0), 0 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 17:43:00,921 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 708.0) internal successors, (2832), 4 states have internal predecessors, (2832), 0 states have call successors, (0), 0 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 17:43:00,923 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 708.0) internal successors, (2832), 4 states have internal predecessors, (2832), 0 states have call successors, (0), 0 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 17:43:00,923 INFO L175 Difference]: Start difference. First operand has 28 places, 18 transitions, 47 flow. Second operand 3 states and 930 transitions. [2022-12-13 17:43:00,923 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 28 places, 16 transitions, 75 flow [2022-12-13 17:43:00,923 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 27 places, 16 transitions, 74 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-13 17:43:00,924 INFO L231 Difference]: Finished difference. Result has 27 places, 16 transitions, 44 flow [2022-12-13 17:43:00,924 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=708, PETRI_DIFFERENCE_MINUEND_FLOW=42, PETRI_DIFFERENCE_MINUEND_PLACES=25, 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=44, PETRI_PLACES=27, PETRI_TRANSITIONS=16} [2022-12-13 17:43:00,925 INFO L288 CegarLoopForPetriNet]: 42 programPoint places, -15 predicate places. [2022-12-13 17:43:00,925 INFO L495 AbstractCegarLoop]: Abstraction has has 27 places, 16 transitions, 44 flow [2022-12-13 17:43:00,925 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 305.6666666666667) internal successors, (917), 3 states have internal predecessors, (917), 0 states have call successors, (0), 0 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 17:43:00,925 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 17:43:00,926 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2022-12-13 17:43:00,926 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-13 17:43:00,926 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2022-12-13 17:43:00,926 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:43:00,926 INFO L85 PathProgramCache]: Analyzing trace with hash 1295216962, now seen corresponding path program 1 times [2022-12-13 17:43:00,926 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:43:00,927 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1806871347] [2022-12-13 17:43:00,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:43:00,927 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:43:00,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:43:00,969 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 17:43:00,969 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:43:00,969 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1806871347] [2022-12-13 17:43:00,970 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1806871347] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:43:00,970 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:43:00,970 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-13 17:43:00,970 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1210484640] [2022-12-13 17:43:00,970 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:43:00,970 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 17:43:00,971 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:43:00,971 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 17:43:00,971 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 17:43:00,977 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 304 out of 708 [2022-12-13 17:43:00,978 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 27 places, 16 transitions, 44 flow. Second operand has 3 states, 3 states have (on average 305.6666666666667) internal successors, (917), 3 states have internal predecessors, (917), 0 states have call successors, (0), 0 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 17:43:00,978 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 17:43:00,979 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 304 of 708 [2022-12-13 17:43:00,979 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 17:43:01,026 INFO L130 PetriNetUnfolder]: 37/78 cut-off events. [2022-12-13 17:43:01,026 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 17:43:01,026 INFO L83 FinitePrefix]: Finished finitePrefix Result has 175 conditions, 78 events. 37/78 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 149 event pairs, 37 based on Foata normal form. 0/78 useless extension candidates. Maximal degree in co-relation 165. Up to 78 conditions per place. [2022-12-13 17:43:01,026 INFO L137 encePairwiseOnDemand]: 705/708 looper letters, 0 selfloop transitions, 0 changer transitions 14/14 dead transitions. [2022-12-13 17:43:01,026 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 27 places, 14 transitions, 68 flow [2022-12-13 17:43:01,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 17:43:01,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 17:43:01,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 928 transitions. [2022-12-13 17:43:01,028 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4369114877589454 [2022-12-13 17:43:01,028 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 928 transitions. [2022-12-13 17:43:01,028 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 928 transitions. [2022-12-13 17:43:01,028 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 17:43:01,028 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 928 transitions. [2022-12-13 17:43:01,029 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 309.3333333333333) internal successors, (928), 3 states have internal predecessors, (928), 0 states have call successors, (0), 0 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 17:43:01,031 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 708.0) internal successors, (2832), 4 states have internal predecessors, (2832), 0 states have call successors, (0), 0 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 17:43:01,032 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 708.0) internal successors, (2832), 4 states have internal predecessors, (2832), 0 states have call successors, (0), 0 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 17:43:01,032 INFO L175 Difference]: Start difference. First operand has 27 places, 16 transitions, 44 flow. Second operand 3 states and 928 transitions. [2022-12-13 17:43:01,032 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 27 places, 14 transitions, 68 flow [2022-12-13 17:43:01,033 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 26 places, 14 transitions, 67 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-13 17:43:01,033 INFO L231 Difference]: Finished difference. Result has 26 places, 0 transitions, 0 flow [2022-12-13 17:43:01,033 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=708, PETRI_DIFFERENCE_MINUEND_FLOW=39, PETRI_DIFFERENCE_MINUEND_PLACES=24, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=14, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=14, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=26, PETRI_TRANSITIONS=0} [2022-12-13 17:43:01,033 INFO L288 CegarLoopForPetriNet]: 42 programPoint places, -16 predicate places. [2022-12-13 17:43:01,033 INFO L495 AbstractCegarLoop]: Abstraction has has 26 places, 0 transitions, 0 flow [2022-12-13 17:43:01,034 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 305.6666666666667) internal successors, (917), 3 states have internal predecessors, (917), 0 states have call successors, (0), 0 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 17:43:01,035 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (38 of 39 remaining) [2022-12-13 17:43:01,036 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (37 of 39 remaining) [2022-12-13 17:43:01,036 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (36 of 39 remaining) [2022-12-13 17:43:01,036 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (35 of 39 remaining) [2022-12-13 17:43:01,036 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (34 of 39 remaining) [2022-12-13 17:43:01,036 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (33 of 39 remaining) [2022-12-13 17:43:01,036 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (32 of 39 remaining) [2022-12-13 17:43:01,036 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (31 of 39 remaining) [2022-12-13 17:43:01,036 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (30 of 39 remaining) [2022-12-13 17:43:01,037 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (29 of 39 remaining) [2022-12-13 17:43:01,037 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (28 of 39 remaining) [2022-12-13 17:43:01,037 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (27 of 39 remaining) [2022-12-13 17:43:01,037 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (26 of 39 remaining) [2022-12-13 17:43:01,037 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (25 of 39 remaining) [2022-12-13 17:43:01,037 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (24 of 39 remaining) [2022-12-13 17:43:01,037 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (23 of 39 remaining) [2022-12-13 17:43:01,037 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (22 of 39 remaining) [2022-12-13 17:43:01,037 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 39 remaining) [2022-12-13 17:43:01,037 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (20 of 39 remaining) [2022-12-13 17:43:01,037 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (19 of 39 remaining) [2022-12-13 17:43:01,037 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (18 of 39 remaining) [2022-12-13 17:43:01,038 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 39 remaining) [2022-12-13 17:43:01,038 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 39 remaining) [2022-12-13 17:43:01,038 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 39 remaining) [2022-12-13 17:43:01,038 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 39 remaining) [2022-12-13 17:43:01,038 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 39 remaining) [2022-12-13 17:43:01,038 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 39 remaining) [2022-12-13 17:43:01,038 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 39 remaining) [2022-12-13 17:43:01,038 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 39 remaining) [2022-12-13 17:43:01,038 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 39 remaining) [2022-12-13 17:43:01,038 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 39 remaining) [2022-12-13 17:43:01,038 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 39 remaining) [2022-12-13 17:43:01,039 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 39 remaining) [2022-12-13 17:43:01,039 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 39 remaining) [2022-12-13 17:43:01,039 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 39 remaining) [2022-12-13 17:43:01,039 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 39 remaining) [2022-12-13 17:43:01,039 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 39 remaining) [2022-12-13 17:43:01,039 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 39 remaining) [2022-12-13 17:43:01,039 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 39 remaining) [2022-12-13 17:43:01,039 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-13 17:43:01,039 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2022-12-13 17:43:01,043 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-13 17:43:01,043 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-13 17:43:01,046 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.12 05:43:01 BasicIcfg [2022-12-13 17:43:01,046 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-13 17:43:01,046 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 17:43:01,046 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 17:43:01,046 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 17:43:01,047 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 05:42:45" (3/4) ... [2022-12-13 17:43:01,049 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-12-13 17:43:01,053 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2022-12-13 17:43:01,053 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2022-12-13 17:43:01,053 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread3 [2022-12-13 17:43:01,056 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 20 nodes and edges [2022-12-13 17:43:01,056 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-12-13 17:43:01,056 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-12-13 17:43:01,056 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-12-13 17:43:01,080 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07acf7f4-9260-45a0-bc16-e6d27b769274/bin/uautomizer-uyxdKDjOR8/witness.graphml [2022-12-13 17:43:01,080 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 17:43:01,081 INFO L158 Benchmark]: Toolchain (without parser) took 16251.17ms. Allocated memory was 153.1MB in the beginning and 186.6MB in the end (delta: 33.6MB). Free memory was 116.2MB in the beginning and 110.9MB in the end (delta: 5.3MB). Peak memory consumption was 39.9MB. Max. memory is 16.1GB. [2022-12-13 17:43:01,081 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 153.1MB. Free memory is still 120.7MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 17:43:01,081 INFO L158 Benchmark]: CACSL2BoogieTranslator took 210.65ms. Allocated memory is still 153.1MB. Free memory was 115.7MB in the beginning and 104.2MB in the end (delta: 11.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-12-13 17:43:01,081 INFO L158 Benchmark]: Boogie Procedure Inliner took 33.81ms. Allocated memory is still 153.1MB. Free memory was 104.2MB in the beginning and 102.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 17:43:01,081 INFO L158 Benchmark]: Boogie Preprocessor took 21.17ms. Allocated memory is still 153.1MB. Free memory was 102.1MB in the beginning and 100.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 17:43:01,081 INFO L158 Benchmark]: RCFGBuilder took 532.41ms. Allocated memory is still 153.1MB. Free memory was 100.0MB in the beginning and 76.9MB in the end (delta: 23.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2022-12-13 17:43:01,082 INFO L158 Benchmark]: TraceAbstraction took 15413.19ms. Allocated memory was 153.1MB in the beginning and 186.6MB in the end (delta: 33.6MB). Free memory was 75.9MB in the beginning and 114.0MB in the end (delta: -38.2MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 17:43:01,082 INFO L158 Benchmark]: Witness Printer took 34.05ms. Allocated memory is still 186.6MB. Free memory was 114.0MB in the beginning and 110.9MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 17:43:01,083 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 153.1MB. Free memory is still 120.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 210.65ms. Allocated memory is still 153.1MB. Free memory was 115.7MB in the beginning and 104.2MB in the end (delta: 11.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 33.81ms. Allocated memory is still 153.1MB. Free memory was 104.2MB in the beginning and 102.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 21.17ms. Allocated memory is still 153.1MB. Free memory was 102.1MB in the beginning and 100.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 532.41ms. Allocated memory is still 153.1MB. Free memory was 100.0MB in the beginning and 76.9MB in the end (delta: 23.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * TraceAbstraction took 15413.19ms. Allocated memory was 153.1MB in the beginning and 186.6MB in the end (delta: 33.6MB). Free memory was 75.9MB in the beginning and 114.0MB in the end (delta: -38.2MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 34.05ms. Allocated memory is still 186.6MB. Free memory was 114.0MB in the beginning and 110.9MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 13.5s, 275 PlacesBefore, 42 PlacesAfterwards, 289 TransitionsBefore, 32 TransitionsAfterwards, 36288 CoEnabledTransitionPairs, 8 FixpointIterations, 50 TrivialSequentialCompositions, 242 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 71 ConcurrentYvCompositions, 24 ChoiceCompositions, 387 TotalNumberOfCompositions, 34450 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 34450, independent: 34450, independent conditional: 0, independent unconditional: 34450, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 21585, independent: 21585, independent conditional: 0, independent unconditional: 21585, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 34450, independent: 12865, independent conditional: 0, independent unconditional: 12865, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 21585, unknown conditional: 0, unknown unconditional: 21585] , Statistics on independence cache: Total cache size (in pairs): 87, Positive cache size: 87, Positive conditional cache size: 0, Positive unconditional cache size: 87, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 90]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 90]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 91]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 91]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 92]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 92]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 90]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 90]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 91]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 91]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 92]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 92]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 90]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 90]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 91]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 91]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 92]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 92]: 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 7 procedures, 494 locations, 39 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: 15.2s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 13.7s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 146 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 110 mSDsluCounter, 12 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 16 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 146 IncrementalHoareTripleChecker+Invalid, 162 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 16 mSolverCounterUnsat, 12 mSDtfsCounter, 146 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 6 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=79occurred in iteration=0, InterpolantAutomatonStates: 18, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 22 NumberOfCodeBlocks, 22 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 16 ConstructedInterpolants, 0 QuantifiedInterpolants, 64 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 18 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-12-13 17:43:01,100 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07acf7f4-9260-45a0-bc16-e6d27b769274/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE