./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/ldv-races/race-3_1-container_of-global.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 38b53e6a Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd6c3833-2c0c-4c86-9997-3a332ef19443/bin/uautomizer-ZsLfNo2U6R/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd6c3833-2c0c-4c86-9997-3a332ef19443/bin/uautomizer-ZsLfNo2U6R/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd6c3833-2c0c-4c86-9997-3a332ef19443/bin/uautomizer-ZsLfNo2U6R/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd6c3833-2c0c-4c86-9997-3a332ef19443/bin/uautomizer-ZsLfNo2U6R/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-races/race-3_1-container_of-global.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd6c3833-2c0c-4c86-9997-3a332ef19443/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd6c3833-2c0c-4c86-9997-3a332ef19443/bin/uautomizer-ZsLfNo2U6R --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 79b55bbc1c83a113dd61cfbd1c59324170026eea9fc3fed8c2e488e492b32e33 --- 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-38b53e6 [2022-11-25 17:58:39,631 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 17:58:39,633 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 17:58:39,662 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 17:58:39,669 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 17:58:39,671 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 17:58:39,674 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 17:58:39,679 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 17:58:39,682 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 17:58:39,684 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 17:58:39,686 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 17:58:39,689 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 17:58:39,691 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 17:58:39,695 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 17:58:39,696 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 17:58:39,699 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 17:58:39,702 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 17:58:39,708 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 17:58:39,710 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 17:58:39,715 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 17:58:39,720 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 17:58:39,723 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 17:58:39,725 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 17:58:39,728 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 17:58:39,732 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 17:58:39,738 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 17:58:39,738 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 17:58:39,740 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 17:58:39,742 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 17:58:39,743 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 17:58:39,745 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 17:58:39,746 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 17:58:39,748 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 17:58:39,750 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 17:58:39,753 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 17:58:39,754 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 17:58:39,755 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 17:58:39,755 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 17:58:39,756 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 17:58:39,759 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 17:58:39,760 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 17:58:39,761 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd6c3833-2c0c-4c86-9997-3a332ef19443/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-11-25 17:58:39,804 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 17:58:39,805 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 17:58:39,806 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 17:58:39,806 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 17:58:39,807 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 17:58:39,808 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 17:58:39,809 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-25 17:58:39,809 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-25 17:58:39,809 INFO L138 SettingsManager]: * Use SBE=true [2022-11-25 17:58:39,810 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 17:58:39,811 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-25 17:58:39,811 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-25 17:58:39,812 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-25 17:58:39,812 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-25 17:58:39,812 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 17:58:39,813 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 17:58:39,813 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 17:58:39,813 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 17:58:39,813 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-25 17:58:39,814 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-25 17:58:39,814 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 17:58:39,814 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 17:58:39,815 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 17:58:39,815 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 17:58:39,815 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-25 17:58:39,816 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 17:58:39,816 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 17:58:39,816 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 17:58:39,816 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 17:58:39,817 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 17:58:39,817 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-25 17:58:39,817 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-25 17:58:39,818 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-25 17:58:39,818 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 17:58:39,818 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-11-25 17:58:39,819 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-25 17:58:39,819 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_fd6c3833-2c0c-4c86-9997-3a332ef19443/bin/uautomizer-ZsLfNo2U6R/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd6c3833-2c0c-4c86-9997-3a332ef19443/bin/uautomizer-ZsLfNo2U6R Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 79b55bbc1c83a113dd61cfbd1c59324170026eea9fc3fed8c2e488e492b32e33 [2022-11-25 17:58:40,158 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 17:58:40,185 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 17:58:40,188 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 17:58:40,190 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 17:58:40,190 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 17:58:40,192 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd6c3833-2c0c-4c86-9997-3a332ef19443/bin/uautomizer-ZsLfNo2U6R/../../sv-benchmarks/c/ldv-races/race-3_1-container_of-global.i [2022-11-25 17:58:43,469 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 17:58:43,872 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 17:58:43,873 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd6c3833-2c0c-4c86-9997-3a332ef19443/sv-benchmarks/c/ldv-races/race-3_1-container_of-global.i [2022-11-25 17:58:43,917 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd6c3833-2c0c-4c86-9997-3a332ef19443/bin/uautomizer-ZsLfNo2U6R/data/9d4a4fb6c/3becb7f85263420db4371b129f811826/FLAGb87ced701 [2022-11-25 17:58:43,939 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd6c3833-2c0c-4c86-9997-3a332ef19443/bin/uautomizer-ZsLfNo2U6R/data/9d4a4fb6c/3becb7f85263420db4371b129f811826 [2022-11-25 17:58:43,943 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 17:58:43,945 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 17:58:43,947 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 17:58:43,947 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 17:58:43,952 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 17:58:43,953 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 05:58:43" (1/1) ... [2022-11-25 17:58:43,954 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4dbc6c34 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:58:43, skipping insertion in model container [2022-11-25 17:58:43,955 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 05:58:43" (1/1) ... [2022-11-25 17:58:43,965 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 17:58:44,057 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 17:58:44,918 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_fd6c3833-2c0c-4c86-9997-3a332ef19443/sv-benchmarks/c/ldv-races/race-3_1-container_of-global.i[76084,76097] [2022-11-25 17:58:44,968 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 17:58:44,982 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 17:58:45,042 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_fd6c3833-2c0c-4c86-9997-3a332ef19443/sv-benchmarks/c/ldv-races/race-3_1-container_of-global.i[76084,76097] [2022-11-25 17:58:45,060 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 17:58:45,199 INFO L208 MainTranslator]: Completed translation [2022-11-25 17:58:45,200 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:58:45 WrapperNode [2022-11-25 17:58:45,200 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 17:58:45,211 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 17:58:45,211 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 17:58:45,211 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 17:58:45,222 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:58:45" (1/1) ... [2022-11-25 17:58:45,279 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:58:45" (1/1) ... [2022-11-25 17:58:45,323 INFO L138 Inliner]: procedures = 482, calls = 46, calls flagged for inlining = 12, calls inlined = 12, statements flattened = 134 [2022-11-25 17:58:45,324 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 17:58:45,325 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 17:58:45,325 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 17:58:45,325 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 17:58:45,336 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:58:45" (1/1) ... [2022-11-25 17:58:45,336 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:58:45" (1/1) ... [2022-11-25 17:58:45,341 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:58:45" (1/1) ... [2022-11-25 17:58:45,342 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:58:45" (1/1) ... [2022-11-25 17:58:45,356 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:58:45" (1/1) ... [2022-11-25 17:58:45,359 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:58:45" (1/1) ... [2022-11-25 17:58:45,364 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:58:45" (1/1) ... [2022-11-25 17:58:45,366 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:58:45" (1/1) ... [2022-11-25 17:58:45,374 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 17:58:45,375 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 17:58:45,375 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 17:58:45,376 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 17:58:45,377 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:58:45" (1/1) ... [2022-11-25 17:58:45,389 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 17:58:45,404 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd6c3833-2c0c-4c86-9997-3a332ef19443/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:58:45,419 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd6c3833-2c0c-4c86-9997-3a332ef19443/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 17:58:45,452 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd6c3833-2c0c-4c86-9997-3a332ef19443/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 17:58:45,488 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-25 17:58:45,489 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-25 17:58:45,490 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-25 17:58:45,496 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-25 17:58:45,497 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-25 17:58:45,498 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 17:58:45,498 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 17:58:45,498 INFO L130 BoogieDeclarations]: Found specification of procedure my_callback [2022-11-25 17:58:45,498 INFO L138 BoogieDeclarations]: Found implementation of procedure my_callback [2022-11-25 17:58:45,498 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-25 17:58:45,499 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-25 17:58:45,499 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-25 17:58:45,501 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-25 17:58:45,898 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 17:58:45,901 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 17:58:46,396 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 17:58:46,406 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 17:58:46,406 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-25 17:58:46,409 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:58:46 BoogieIcfgContainer [2022-11-25 17:58:46,415 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 17:58:46,418 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 17:58:46,418 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 17:58:46,423 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 17:58:46,424 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 05:58:43" (1/3) ... [2022-11-25 17:58:46,424 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@807289f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 05:58:46, skipping insertion in model container [2022-11-25 17:58:46,425 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:58:45" (2/3) ... [2022-11-25 17:58:46,426 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@807289f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 05:58:46, skipping insertion in model container [2022-11-25 17:58:46,427 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:58:46" (3/3) ... [2022-11-25 17:58:46,428 INFO L112 eAbstractionObserver]: Analyzing ICFG race-3_1-container_of-global.i [2022-11-25 17:58:46,439 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-25 17:58:46,453 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 17:58:46,453 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-11-25 17:58:46,453 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-25 17:58:46,605 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-11-25 17:58:46,713 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 194 places, 196 transitions, 408 flow [2022-11-25 17:58:46,886 INFO L130 PetriNetUnfolder]: 10/239 cut-off events. [2022-11-25 17:58:46,887 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-11-25 17:58:46,894 INFO L83 FinitePrefix]: Finished finitePrefix Result has 248 conditions, 239 events. 10/239 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 398 event pairs, 0 based on Foata normal form. 0/223 useless extension candidates. Maximal degree in co-relation 141. Up to 4 conditions per place. [2022-11-25 17:58:46,895 INFO L82 GeneralOperation]: Start removeDead. Operand has 194 places, 196 transitions, 408 flow [2022-11-25 17:58:46,907 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 165 places, 162 transitions, 333 flow [2022-11-25 17:58:46,911 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-25 17:58:46,950 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 165 places, 162 transitions, 333 flow [2022-11-25 17:58:46,955 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 165 places, 162 transitions, 333 flow [2022-11-25 17:58:46,956 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 165 places, 162 transitions, 333 flow [2022-11-25 17:58:47,031 INFO L130 PetriNetUnfolder]: 4/162 cut-off events. [2022-11-25 17:58:47,032 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-25 17:58:47,034 INFO L83 FinitePrefix]: Finished finitePrefix Result has 170 conditions, 162 events. 4/162 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 170 event pairs, 0 based on Foata normal form. 0/153 useless extension candidates. Maximal degree in co-relation 93. Up to 2 conditions per place. [2022-11-25 17:58:47,037 INFO L119 LiptonReduction]: Number of co-enabled transitions 4216 [2022-11-25 17:59:28,230 INFO L134 LiptonReduction]: Checked pairs total: 8532 [2022-11-25 17:59:28,230 INFO L136 LiptonReduction]: Total number of compositions: 168 [2022-11-25 17:59:28,249 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 17:59:28,257 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;@1bc05bce, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 17:59:28,258 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2022-11-25 17:59:28,268 INFO L130 PetriNetUnfolder]: 0/6 cut-off events. [2022-11-25 17:59:28,272 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-25 17:59:28,272 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 17:59:28,273 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2022-11-25 17:59:28,275 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-11-25 17:59:28,282 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:59:28,282 INFO L85 PathProgramCache]: Analyzing trace with hash 608503122, now seen corresponding path program 1 times [2022-11-25 17:59:28,296 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:59:28,296 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1356818184] [2022-11-25 17:59:28,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:59:28,297 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:59:28,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:59:30,031 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:59:30,033 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:59:30,033 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1356818184] [2022-11-25 17:59:30,034 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1356818184] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:59:30,035 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:59:30,035 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 17:59:30,037 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [967710065] [2022-11-25 17:59:30,038 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:59:30,048 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 17:59:30,049 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:59:30,081 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 17:59:30,083 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 17:59:30,253 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 166 out of 364 [2022-11-25 17:59:30,257 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 30 places, 23 transitions, 55 flow. Second operand has 4 states, 4 states have (on average 167.25) internal successors, (669), 4 states have internal predecessors, (669), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:59:30,257 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 17:59:30,257 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 166 of 364 [2022-11-25 17:59:30,259 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 17:59:30,530 INFO L130 PetriNetUnfolder]: 194/361 cut-off events. [2022-11-25 17:59:30,531 INFO L131 PetriNetUnfolder]: For 19/19 co-relation queries the response was YES. [2022-11-25 17:59:30,532 INFO L83 FinitePrefix]: Finished finitePrefix Result has 752 conditions, 361 events. 194/361 cut-off events. For 19/19 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 1323 event pairs, 189 based on Foata normal form. 0/289 useless extension candidates. Maximal degree in co-relation 674. Up to 357 conditions per place. [2022-11-25 17:59:30,536 INFO L137 encePairwiseOnDemand]: 357/364 looper letters, 23 selfloop transitions, 5 changer transitions 0/28 dead transitions. [2022-11-25 17:59:30,536 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 32 places, 28 transitions, 121 flow [2022-11-25 17:59:30,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 17:59:30,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-11-25 17:59:30,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 695 transitions. [2022-11-25 17:59:30,559 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.47733516483516486 [2022-11-25 17:59:30,560 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 695 transitions. [2022-11-25 17:59:30,561 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 695 transitions. [2022-11-25 17:59:30,564 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 17:59:30,568 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 695 transitions. [2022-11-25 17:59:30,574 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 173.75) internal successors, (695), 4 states have internal predecessors, (695), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:59:30,585 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 364.0) internal successors, (1820), 5 states have internal predecessors, (1820), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:59:30,586 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 364.0) internal successors, (1820), 5 states have internal predecessors, (1820), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:59:30,589 INFO L175 Difference]: Start difference. First operand has 30 places, 23 transitions, 55 flow. Second operand 4 states and 695 transitions. [2022-11-25 17:59:30,592 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 32 places, 28 transitions, 121 flow [2022-11-25 17:59:30,597 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 29 places, 28 transitions, 116 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-11-25 17:59:30,599 INFO L231 Difference]: Finished difference. Result has 31 places, 26 transitions, 82 flow [2022-11-25 17:59:30,602 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=364, PETRI_DIFFERENCE_MINUEND_FLOW=48, PETRI_DIFFERENCE_MINUEND_PLACES=26, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=18, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=82, PETRI_PLACES=31, PETRI_TRANSITIONS=26} [2022-11-25 17:59:30,607 INFO L288 CegarLoopForPetriNet]: 30 programPoint places, 1 predicate places. [2022-11-25 17:59:30,608 INFO L495 AbstractCegarLoop]: Abstraction has has 31 places, 26 transitions, 82 flow [2022-11-25 17:59:30,608 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 167.25) internal successors, (669), 4 states have internal predecessors, (669), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:59:30,609 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 17:59:30,609 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2022-11-25 17:59:30,609 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-25 17:59:30,610 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-11-25 17:59:30,623 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:59:30,623 INFO L85 PathProgramCache]: Analyzing trace with hash 1683754381, now seen corresponding path program 1 times [2022-11-25 17:59:30,623 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:59:30,624 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1043689077] [2022-11-25 17:59:30,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:59:30,624 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:59:30,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:59:31,378 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:59:31,379 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:59:31,380 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1043689077] [2022-11-25 17:59:31,381 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1043689077] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:59:31,382 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:59:31,388 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 17:59:31,388 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [90905236] [2022-11-25 17:59:31,389 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:59:31,390 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 17:59:31,390 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:59:31,391 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 17:59:31,391 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-25 17:59:31,582 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 165 out of 364 [2022-11-25 17:59:31,583 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 31 places, 26 transitions, 82 flow. Second operand has 5 states, 5 states have (on average 166.2) internal successors, (831), 5 states have internal predecessors, (831), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:59:31,584 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 17:59:31,584 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 165 of 364 [2022-11-25 17:59:31,584 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 17:59:31,841 INFO L130 PetriNetUnfolder]: 215/397 cut-off events. [2022-11-25 17:59:31,842 INFO L131 PetriNetUnfolder]: For 50/50 co-relation queries the response was YES. [2022-11-25 17:59:31,843 INFO L83 FinitePrefix]: Finished finitePrefix Result has 910 conditions, 397 events. 215/397 cut-off events. For 50/50 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 1531 event pairs, 52 based on Foata normal form. 5/347 useless extension candidates. Maximal degree in co-relation 718. Up to 351 conditions per place. [2022-11-25 17:59:31,846 INFO L137 encePairwiseOnDemand]: 356/364 looper letters, 32 selfloop transitions, 12 changer transitions 0/44 dead transitions. [2022-11-25 17:59:31,846 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 35 places, 44 transitions, 219 flow [2022-11-25 17:59:31,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-25 17:59:31,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-11-25 17:59:31,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 869 transitions. [2022-11-25 17:59:31,852 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4774725274725275 [2022-11-25 17:59:31,852 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 869 transitions. [2022-11-25 17:59:31,852 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 869 transitions. [2022-11-25 17:59:31,853 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 17:59:31,853 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 869 transitions. [2022-11-25 17:59:31,856 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 173.8) internal successors, (869), 5 states have internal predecessors, (869), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:59:31,862 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 364.0) internal successors, (2184), 6 states have internal predecessors, (2184), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:59:31,864 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 364.0) internal successors, (2184), 6 states have internal predecessors, (2184), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:59:31,864 INFO L175 Difference]: Start difference. First operand has 31 places, 26 transitions, 82 flow. Second operand 5 states and 869 transitions. [2022-11-25 17:59:31,864 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 35 places, 44 transitions, 219 flow [2022-11-25 17:59:31,869 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 44 transitions, 219 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-25 17:59:31,871 INFO L231 Difference]: Finished difference. Result has 37 places, 34 transitions, 152 flow [2022-11-25 17:59:31,872 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=364, PETRI_DIFFERENCE_MINUEND_FLOW=82, PETRI_DIFFERENCE_MINUEND_PLACES=31, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=26, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=18, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=152, PETRI_PLACES=37, PETRI_TRANSITIONS=34} [2022-11-25 17:59:31,873 INFO L288 CegarLoopForPetriNet]: 30 programPoint places, 7 predicate places. [2022-11-25 17:59:31,873 INFO L495 AbstractCegarLoop]: Abstraction has has 37 places, 34 transitions, 152 flow [2022-11-25 17:59:31,874 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 166.2) internal successors, (831), 5 states have internal predecessors, (831), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:59:31,874 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 17:59:31,875 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2022-11-25 17:59:31,875 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-25 17:59:31,877 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-11-25 17:59:31,880 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:59:31,881 INFO L85 PathProgramCache]: Analyzing trace with hash 1683731131, now seen corresponding path program 2 times [2022-11-25 17:59:31,881 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:59:31,881 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1360714488] [2022-11-25 17:59:31,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:59:31,882 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:59:31,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:59:32,452 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:59:32,452 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:59:32,453 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1360714488] [2022-11-25 17:59:32,453 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1360714488] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:59:32,453 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:59:32,453 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 17:59:32,454 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [842337814] [2022-11-25 17:59:32,454 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:59:32,455 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 17:59:32,455 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:59:32,455 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 17:59:32,456 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-25 17:59:32,635 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 165 out of 364 [2022-11-25 17:59:32,637 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 34 transitions, 152 flow. Second operand has 5 states, 5 states have (on average 166.2) internal successors, (831), 5 states have internal predecessors, (831), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:59:32,637 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 17:59:32,637 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 165 of 364 [2022-11-25 17:59:32,637 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 17:59:32,885 INFO L130 PetriNetUnfolder]: 201/373 cut-off events. [2022-11-25 17:59:32,886 INFO L131 PetriNetUnfolder]: For 188/188 co-relation queries the response was YES. [2022-11-25 17:59:32,888 INFO L83 FinitePrefix]: Finished finitePrefix Result has 991 conditions, 373 events. 201/373 cut-off events. For 188/188 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 1390 event pairs, 59 based on Foata normal form. 5/328 useless extension candidates. Maximal degree in co-relation 733. Up to 305 conditions per place. [2022-11-25 17:59:32,892 INFO L137 encePairwiseOnDemand]: 357/364 looper letters, 34 selfloop transitions, 13 changer transitions 0/47 dead transitions. [2022-11-25 17:59:32,893 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 47 transitions, 287 flow [2022-11-25 17:59:32,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-25 17:59:32,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-11-25 17:59:32,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 868 transitions. [2022-11-25 17:59:32,897 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.47692307692307695 [2022-11-25 17:59:32,897 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 868 transitions. [2022-11-25 17:59:32,897 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 868 transitions. [2022-11-25 17:59:32,898 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 17:59:32,898 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 868 transitions. [2022-11-25 17:59:32,901 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 173.6) internal successors, (868), 5 states have internal predecessors, (868), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:59:32,906 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 364.0) internal successors, (2184), 6 states have internal predecessors, (2184), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:59:32,908 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 364.0) internal successors, (2184), 6 states have internal predecessors, (2184), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:59:32,908 INFO L175 Difference]: Start difference. First operand has 37 places, 34 transitions, 152 flow. Second operand 5 states and 868 transitions. [2022-11-25 17:59:32,908 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 47 transitions, 287 flow [2022-11-25 17:59:32,911 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 47 transitions, 285 flow, removed 1 selfloop flow, removed 0 redundant places. [2022-11-25 17:59:32,914 INFO L231 Difference]: Finished difference. Result has 42 places, 37 transitions, 206 flow [2022-11-25 17:59:32,914 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=364, PETRI_DIFFERENCE_MINUEND_FLOW=150, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=34, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=206, PETRI_PLACES=42, PETRI_TRANSITIONS=37} [2022-11-25 17:59:32,916 INFO L288 CegarLoopForPetriNet]: 30 programPoint places, 12 predicate places. [2022-11-25 17:59:32,916 INFO L495 AbstractCegarLoop]: Abstraction has has 42 places, 37 transitions, 206 flow [2022-11-25 17:59:32,917 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 166.2) internal successors, (831), 5 states have internal predecessors, (831), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:59:32,917 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 17:59:32,917 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:59:32,918 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-25 17:59:32,919 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-11-25 17:59:32,919 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:59:32,920 INFO L85 PathProgramCache]: Analyzing trace with hash 653281847, now seen corresponding path program 1 times [2022-11-25 17:59:32,920 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:59:32,920 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [551128883] [2022-11-25 17:59:32,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:59:32,920 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:59:32,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:59:33,519 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:59:33,520 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:59:33,521 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [551128883] [2022-11-25 17:59:33,521 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [551128883] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:59:33,522 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:59:33,522 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 17:59:33,523 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1186982763] [2022-11-25 17:59:33,524 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:59:33,524 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 17:59:33,524 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:59:33,526 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 17:59:33,527 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-25 17:59:33,809 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 165 out of 364 [2022-11-25 17:59:33,811 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 37 transitions, 206 flow. Second operand has 5 states, 5 states have (on average 166.4) internal successors, (832), 5 states have internal predecessors, (832), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:59:33,811 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 17:59:33,811 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 165 of 364 [2022-11-25 17:59:33,811 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 17:59:34,049 INFO L130 PetriNetUnfolder]: 189/353 cut-off events. [2022-11-25 17:59:34,049 INFO L131 PetriNetUnfolder]: For 308/308 co-relation queries the response was YES. [2022-11-25 17:59:34,050 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1038 conditions, 353 events. 189/353 cut-off events. For 308/308 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 1286 event pairs, 74 based on Foata normal form. 0/311 useless extension candidates. Maximal degree in co-relation 839. Up to 311 conditions per place. [2022-11-25 17:59:34,052 INFO L137 encePairwiseOnDemand]: 357/364 looper letters, 38 selfloop transitions, 11 changer transitions 0/49 dead transitions. [2022-11-25 17:59:34,053 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 49 transitions, 353 flow [2022-11-25 17:59:34,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-25 17:59:34,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-11-25 17:59:34,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 864 transitions. [2022-11-25 17:59:34,057 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4747252747252747 [2022-11-25 17:59:34,057 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 864 transitions. [2022-11-25 17:59:34,057 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 864 transitions. [2022-11-25 17:59:34,058 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 17:59:34,058 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 864 transitions. [2022-11-25 17:59:34,061 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 172.8) internal successors, (864), 5 states have internal predecessors, (864), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:59:34,065 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 364.0) internal successors, (2184), 6 states have internal predecessors, (2184), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:59:34,067 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 364.0) internal successors, (2184), 6 states have internal predecessors, (2184), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:59:34,067 INFO L175 Difference]: Start difference. First operand has 42 places, 37 transitions, 206 flow. Second operand 5 states and 864 transitions. [2022-11-25 17:59:34,067 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 49 transitions, 353 flow [2022-11-25 17:59:34,070 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 49 transitions, 338 flow, removed 3 selfloop flow, removed 1 redundant places. [2022-11-25 17:59:34,071 INFO L231 Difference]: Finished difference. Result has 47 places, 42 transitions, 256 flow [2022-11-25 17:59:34,071 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=364, PETRI_DIFFERENCE_MINUEND_FLOW=191, PETRI_DIFFERENCE_MINUEND_PLACES=41, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=256, PETRI_PLACES=47, PETRI_TRANSITIONS=42} [2022-11-25 17:59:34,072 INFO L288 CegarLoopForPetriNet]: 30 programPoint places, 17 predicate places. [2022-11-25 17:59:34,073 INFO L495 AbstractCegarLoop]: Abstraction has has 47 places, 42 transitions, 256 flow [2022-11-25 17:59:34,073 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 166.4) internal successors, (832), 5 states have internal predecessors, (832), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:59:34,074 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 17:59:34,074 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:59:34,074 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-25 17:59:34,074 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-11-25 17:59:34,075 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:59:34,075 INFO L85 PathProgramCache]: Analyzing trace with hash 746284790, now seen corresponding path program 1 times [2022-11-25 17:59:34,075 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:59:34,075 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2143825420] [2022-11-25 17:59:34,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:59:34,076 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:59:34,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:59:34,589 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:59:34,589 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:59:34,589 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2143825420] [2022-11-25 17:59:34,590 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2143825420] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:59:34,590 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:59:34,590 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 17:59:34,590 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [849222010] [2022-11-25 17:59:34,590 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:59:34,591 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 17:59:34,591 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:59:34,591 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 17:59:34,591 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-25 17:59:34,659 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 172 out of 364 [2022-11-25 17:59:34,660 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 42 transitions, 256 flow. Second operand has 4 states, 4 states have (on average 174.0) internal successors, (696), 4 states have internal predecessors, (696), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:59:34,660 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 17:59:34,660 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 172 of 364 [2022-11-25 17:59:34,661 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 17:59:34,880 INFO L130 PetriNetUnfolder]: 160/328 cut-off events. [2022-11-25 17:59:34,881 INFO L131 PetriNetUnfolder]: For 259/259 co-relation queries the response was YES. [2022-11-25 17:59:34,882 INFO L83 FinitePrefix]: Finished finitePrefix Result has 981 conditions, 328 events. 160/328 cut-off events. For 259/259 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 1350 event pairs, 76 based on Foata normal form. 14/313 useless extension candidates. Maximal degree in co-relation 865. Up to 180 conditions per place. [2022-11-25 17:59:34,884 INFO L137 encePairwiseOnDemand]: 359/364 looper letters, 39 selfloop transitions, 6 changer transitions 4/54 dead transitions. [2022-11-25 17:59:34,884 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 54 transitions, 388 flow [2022-11-25 17:59:34,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 17:59:34,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-11-25 17:59:34,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 724 transitions. [2022-11-25 17:59:34,888 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.49725274725274726 [2022-11-25 17:59:34,888 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 724 transitions. [2022-11-25 17:59:34,888 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 724 transitions. [2022-11-25 17:59:34,889 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 17:59:34,889 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 724 transitions. [2022-11-25 17:59:34,891 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 181.0) internal successors, (724), 4 states have internal predecessors, (724), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:59:34,895 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 364.0) internal successors, (1820), 5 states have internal predecessors, (1820), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:59:34,895 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 364.0) internal successors, (1820), 5 states have internal predecessors, (1820), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:59:34,895 INFO L175 Difference]: Start difference. First operand has 47 places, 42 transitions, 256 flow. Second operand 4 states and 724 transitions. [2022-11-25 17:59:34,896 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 54 transitions, 388 flow [2022-11-25 17:59:34,901 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 54 transitions, 379 flow, removed 1 selfloop flow, removed 1 redundant places. [2022-11-25 17:59:34,903 INFO L231 Difference]: Finished difference. Result has 50 places, 40 transitions, 248 flow [2022-11-25 17:59:34,904 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=364, PETRI_DIFFERENCE_MINUEND_FLOW=223, PETRI_DIFFERENCE_MINUEND_PLACES=46, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=248, PETRI_PLACES=50, PETRI_TRANSITIONS=40} [2022-11-25 17:59:34,906 INFO L288 CegarLoopForPetriNet]: 30 programPoint places, 20 predicate places. [2022-11-25 17:59:34,907 INFO L495 AbstractCegarLoop]: Abstraction has has 50 places, 40 transitions, 248 flow [2022-11-25 17:59:34,907 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 174.0) internal successors, (696), 4 states have internal predecessors, (696), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:59:34,907 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 17:59:34,908 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:59:34,908 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-25 17:59:34,908 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-11-25 17:59:34,908 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:59:34,909 INFO L85 PathProgramCache]: Analyzing trace with hash 740627562, now seen corresponding path program 1 times [2022-11-25 17:59:34,909 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:59:34,909 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1082096983] [2022-11-25 17:59:34,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:59:34,909 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:59:34,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:59:35,870 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:59:35,870 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:59:35,870 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1082096983] [2022-11-25 17:59:35,871 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1082096983] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:59:35,871 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:59:35,871 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-25 17:59:35,871 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [400580363] [2022-11-25 17:59:35,871 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:59:35,872 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-25 17:59:35,872 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:59:35,872 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-25 17:59:35,873 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-11-25 17:59:36,275 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 163 out of 364 [2022-11-25 17:59:36,277 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 50 places, 40 transitions, 248 flow. Second operand has 7 states, 7 states have (on average 164.28571428571428) internal successors, (1150), 7 states have internal predecessors, (1150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:59:36,277 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 17:59:36,277 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 163 of 364 [2022-11-25 17:59:36,277 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 17:59:36,629 INFO L130 PetriNetUnfolder]: 146/300 cut-off events. [2022-11-25 17:59:36,630 INFO L131 PetriNetUnfolder]: For 322/322 co-relation queries the response was YES. [2022-11-25 17:59:36,631 INFO L83 FinitePrefix]: Finished finitePrefix Result has 989 conditions, 300 events. 146/300 cut-off events. For 322/322 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 1136 event pairs, 28 based on Foata normal form. 8/291 useless extension candidates. Maximal degree in co-relation 856. Up to 223 conditions per place. [2022-11-25 17:59:36,633 INFO L137 encePairwiseOnDemand]: 355/364 looper letters, 40 selfloop transitions, 14 changer transitions 3/57 dead transitions. [2022-11-25 17:59:36,633 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 57 transitions, 436 flow [2022-11-25 17:59:36,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-25 17:59:36,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-11-25 17:59:36,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1190 transitions. [2022-11-25 17:59:36,638 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.46703296703296704 [2022-11-25 17:59:36,638 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1190 transitions. [2022-11-25 17:59:36,638 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1190 transitions. [2022-11-25 17:59:36,639 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 17:59:36,640 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1190 transitions. [2022-11-25 17:59:36,643 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 170.0) internal successors, (1190), 7 states have internal predecessors, (1190), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:59:36,648 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 364.0) internal successors, (2912), 8 states have internal predecessors, (2912), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:59:36,649 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 364.0) internal successors, (2912), 8 states have internal predecessors, (2912), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:59:36,649 INFO L175 Difference]: Start difference. First operand has 50 places, 40 transitions, 248 flow. Second operand 7 states and 1190 transitions. [2022-11-25 17:59:36,650 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 56 places, 57 transitions, 436 flow [2022-11-25 17:59:36,652 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 57 transitions, 427 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-25 17:59:36,654 INFO L231 Difference]: Finished difference. Result has 57 places, 44 transitions, 322 flow [2022-11-25 17:59:36,654 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=364, PETRI_DIFFERENCE_MINUEND_FLOW=241, PETRI_DIFFERENCE_MINUEND_PLACES=48, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=322, PETRI_PLACES=57, PETRI_TRANSITIONS=44} [2022-11-25 17:59:36,655 INFO L288 CegarLoopForPetriNet]: 30 programPoint places, 27 predicate places. [2022-11-25 17:59:36,655 INFO L495 AbstractCegarLoop]: Abstraction has has 57 places, 44 transitions, 322 flow [2022-11-25 17:59:36,656 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 164.28571428571428) internal successors, (1150), 7 states have internal predecessors, (1150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:59:36,656 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 17:59:36,656 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:59:36,656 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-25 17:59:36,657 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-11-25 17:59:36,657 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:59:36,657 INFO L85 PathProgramCache]: Analyzing trace with hash 738695990, now seen corresponding path program 2 times [2022-11-25 17:59:36,657 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:59:36,658 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1447688981] [2022-11-25 17:59:36,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:59:36,658 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:59:36,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:59:37,472 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:59:37,473 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:59:37,473 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1447688981] [2022-11-25 17:59:37,473 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1447688981] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:59:37,473 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:59:37,473 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 17:59:37,474 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1445727735] [2022-11-25 17:59:37,474 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:59:37,474 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-25 17:59:37,474 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:59:37,475 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-25 17:59:37,475 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-25 17:59:37,762 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 163 out of 364 [2022-11-25 17:59:37,764 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 44 transitions, 322 flow. Second operand has 6 states, 6 states have (on average 164.5) internal successors, (987), 6 states have internal predecessors, (987), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:59:37,764 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 17:59:37,764 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 163 of 364 [2022-11-25 17:59:37,764 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 17:59:38,150 INFO L130 PetriNetUnfolder]: 145/295 cut-off events. [2022-11-25 17:59:38,150 INFO L131 PetriNetUnfolder]: For 411/411 co-relation queries the response was YES. [2022-11-25 17:59:38,151 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1049 conditions, 295 events. 145/295 cut-off events. For 411/411 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 1143 event pairs, 19 based on Foata normal form. 4/282 useless extension candidates. Maximal degree in co-relation 910. Up to 222 conditions per place. [2022-11-25 17:59:38,154 INFO L137 encePairwiseOnDemand]: 354/364 looper letters, 37 selfloop transitions, 23 changer transitions 0/60 dead transitions. [2022-11-25 17:59:38,154 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 60 transitions, 499 flow [2022-11-25 17:59:38,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-25 17:59:38,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-11-25 17:59:38,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1194 transitions. [2022-11-25 17:59:38,160 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4686028257456829 [2022-11-25 17:59:38,160 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1194 transitions. [2022-11-25 17:59:38,160 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1194 transitions. [2022-11-25 17:59:38,161 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 17:59:38,161 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1194 transitions. [2022-11-25 17:59:38,165 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 170.57142857142858) internal successors, (1194), 7 states have internal predecessors, (1194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:59:38,170 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 364.0) internal successors, (2912), 8 states have internal predecessors, (2912), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:59:38,172 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 364.0) internal successors, (2912), 8 states have internal predecessors, (2912), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:59:38,173 INFO L175 Difference]: Start difference. First operand has 57 places, 44 transitions, 322 flow. Second operand 7 states and 1194 transitions. [2022-11-25 17:59:38,173 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 60 transitions, 499 flow [2022-11-25 17:59:38,176 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 60 transitions, 476 flow, removed 2 selfloop flow, removed 3 redundant places. [2022-11-25 17:59:38,178 INFO L231 Difference]: Finished difference. Result has 61 places, 48 transitions, 390 flow [2022-11-25 17:59:38,178 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=364, PETRI_DIFFERENCE_MINUEND_FLOW=302, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=19, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=390, PETRI_PLACES=61, PETRI_TRANSITIONS=48} [2022-11-25 17:59:38,179 INFO L288 CegarLoopForPetriNet]: 30 programPoint places, 31 predicate places. [2022-11-25 17:59:38,179 INFO L495 AbstractCegarLoop]: Abstraction has has 61 places, 48 transitions, 390 flow [2022-11-25 17:59:38,180 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 164.5) internal successors, (987), 6 states have internal predecessors, (987), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:59:38,180 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 17:59:38,180 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:59:38,180 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-25 17:59:38,181 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-11-25 17:59:38,181 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:59:38,181 INFO L85 PathProgramCache]: Analyzing trace with hash 740547620, now seen corresponding path program 3 times [2022-11-25 17:59:38,181 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:59:38,182 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [247963122] [2022-11-25 17:59:38,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:59:38,182 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:59:38,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:59:38,964 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:59:38,964 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:59:38,965 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [247963122] [2022-11-25 17:59:38,965 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [247963122] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:59:38,965 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:59:38,965 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-25 17:59:38,965 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [663762509] [2022-11-25 17:59:38,966 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:59:38,966 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-25 17:59:38,966 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:59:38,967 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-25 17:59:38,967 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-11-25 17:59:39,367 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 163 out of 364 [2022-11-25 17:59:39,368 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 48 transitions, 390 flow. Second operand has 7 states, 7 states have (on average 164.28571428571428) internal successors, (1150), 7 states have internal predecessors, (1150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:59:39,369 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 17:59:39,369 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 163 of 364 [2022-11-25 17:59:39,369 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 17:59:39,777 INFO L130 PetriNetUnfolder]: 133/275 cut-off events. [2022-11-25 17:59:39,777 INFO L131 PetriNetUnfolder]: For 511/511 co-relation queries the response was YES. [2022-11-25 17:59:39,778 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1041 conditions, 275 events. 133/275 cut-off events. For 511/511 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 1035 event pairs, 21 based on Foata normal form. 4/266 useless extension candidates. Maximal degree in co-relation 893. Up to 182 conditions per place. [2022-11-25 17:59:39,780 INFO L137 encePairwiseOnDemand]: 355/364 looper letters, 38 selfloop transitions, 23 changer transitions 1/62 dead transitions. [2022-11-25 17:59:39,781 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 62 transitions, 548 flow [2022-11-25 17:59:39,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-25 17:59:39,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2022-11-25 17:59:39,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1358 transitions. [2022-11-25 17:59:39,786 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.46634615384615385 [2022-11-25 17:59:39,787 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 1358 transitions. [2022-11-25 17:59:39,787 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 1358 transitions. [2022-11-25 17:59:39,788 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 17:59:39,788 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 1358 transitions. [2022-11-25 17:59:39,792 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 169.75) internal successors, (1358), 8 states have internal predecessors, (1358), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:59:39,798 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 364.0) internal successors, (3276), 9 states have internal predecessors, (3276), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:59:39,800 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 364.0) internal successors, (3276), 9 states have internal predecessors, (3276), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:59:39,800 INFO L175 Difference]: Start difference. First operand has 61 places, 48 transitions, 390 flow. Second operand 8 states and 1358 transitions. [2022-11-25 17:59:39,800 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 62 transitions, 548 flow [2022-11-25 17:59:39,805 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 63 places, 62 transitions, 504 flow, removed 5 selfloop flow, removed 5 redundant places. [2022-11-25 17:59:39,808 INFO L231 Difference]: Finished difference. Result has 64 places, 48 transitions, 404 flow [2022-11-25 17:59:39,809 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=364, PETRI_DIFFERENCE_MINUEND_FLOW=346, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=48, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=23, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=404, PETRI_PLACES=64, PETRI_TRANSITIONS=48} [2022-11-25 17:59:39,811 INFO L288 CegarLoopForPetriNet]: 30 programPoint places, 34 predicate places. [2022-11-25 17:59:39,812 INFO L495 AbstractCegarLoop]: Abstraction has has 64 places, 48 transitions, 404 flow [2022-11-25 17:59:39,814 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 164.28571428571428) internal successors, (1150), 7 states have internal predecessors, (1150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:59:39,814 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 17:59:39,814 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:59:39,814 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-25 17:59:39,815 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-11-25 17:59:39,815 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:59:39,815 INFO L85 PathProgramCache]: Analyzing trace with hash 1194902950, now seen corresponding path program 1 times [2022-11-25 17:59:39,816 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:59:39,816 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [718889216] [2022-11-25 17:59:39,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:59:39,817 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:59:39,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:59:40,406 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:59:40,407 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:59:40,407 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [718889216] [2022-11-25 17:59:40,411 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [718889216] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:59:40,412 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:59:40,412 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 17:59:40,413 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1921322123] [2022-11-25 17:59:40,413 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:59:40,413 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 17:59:40,414 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:59:40,414 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 17:59:40,414 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-25 17:59:40,472 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 172 out of 364 [2022-11-25 17:59:40,473 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 48 transitions, 404 flow. Second operand has 4 states, 4 states have (on average 174.5) internal successors, (698), 4 states have internal predecessors, (698), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:59:40,474 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 17:59:40,474 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 172 of 364 [2022-11-25 17:59:40,474 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 17:59:40,618 INFO L130 PetriNetUnfolder]: 46/125 cut-off events. [2022-11-25 17:59:40,618 INFO L131 PetriNetUnfolder]: For 308/310 co-relation queries the response was YES. [2022-11-25 17:59:40,619 INFO L83 FinitePrefix]: Finished finitePrefix Result has 478 conditions, 125 events. 46/125 cut-off events. For 308/310 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 411 event pairs, 15 based on Foata normal form. 10/127 useless extension candidates. Maximal degree in co-relation 433. Up to 62 conditions per place. [2022-11-25 17:59:40,620 INFO L137 encePairwiseOnDemand]: 360/364 looper letters, 30 selfloop transitions, 4 changer transitions 0/37 dead transitions. [2022-11-25 17:59:40,620 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 37 transitions, 324 flow [2022-11-25 17:59:40,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 17:59:40,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-11-25 17:59:40,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 714 transitions. [2022-11-25 17:59:40,625 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.49038461538461536 [2022-11-25 17:59:40,625 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 714 transitions. [2022-11-25 17:59:40,625 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 714 transitions. [2022-11-25 17:59:40,626 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 17:59:40,627 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 714 transitions. [2022-11-25 17:59:40,629 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 178.5) internal successors, (714), 4 states have internal predecessors, (714), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:59:40,634 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 364.0) internal successors, (1820), 5 states have internal predecessors, (1820), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:59:40,635 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 364.0) internal successors, (1820), 5 states have internal predecessors, (1820), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:59:40,635 INFO L175 Difference]: Start difference. First operand has 64 places, 48 transitions, 404 flow. Second operand 4 states and 714 transitions. [2022-11-25 17:59:40,635 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 37 transitions, 324 flow [2022-11-25 17:59:40,638 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 50 places, 37 transitions, 266 flow, removed 10 selfloop flow, removed 12 redundant places. [2022-11-25 17:59:40,640 INFO L231 Difference]: Finished difference. Result has 51 places, 33 transitions, 202 flow [2022-11-25 17:59:40,640 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=364, PETRI_DIFFERENCE_MINUEND_FLOW=189, PETRI_DIFFERENCE_MINUEND_PLACES=47, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=33, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=202, PETRI_PLACES=51, PETRI_TRANSITIONS=33} [2022-11-25 17:59:40,641 INFO L288 CegarLoopForPetriNet]: 30 programPoint places, 21 predicate places. [2022-11-25 17:59:40,642 INFO L495 AbstractCegarLoop]: Abstraction has has 51 places, 33 transitions, 202 flow [2022-11-25 17:59:40,645 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 174.5) internal successors, (698), 4 states have internal predecessors, (698), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:59:40,645 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 17:59:40,645 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:59:40,646 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-25 17:59:40,647 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-11-25 17:59:40,648 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:59:40,648 INFO L85 PathProgramCache]: Analyzing trace with hash -823171562, now seen corresponding path program 1 times [2022-11-25 17:59:40,649 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:59:40,651 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [367206001] [2022-11-25 17:59:40,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:59:40,652 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:59:40,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:59:42,255 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:59:42,255 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:59:42,255 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [367206001] [2022-11-25 17:59:42,255 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [367206001] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:59:42,255 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:59:42,256 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-25 17:59:42,256 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1276797686] [2022-11-25 17:59:42,256 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:59:42,256 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-25 17:59:42,256 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:59:42,257 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-25 17:59:42,257 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-11-25 17:59:43,007 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 159 out of 364 [2022-11-25 17:59:43,009 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 51 places, 33 transitions, 202 flow. Second operand has 10 states, 10 states have (on average 160.2) internal successors, (1602), 10 states have internal predecessors, (1602), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:59:43,009 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 17:59:43,010 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 159 of 364 [2022-11-25 17:59:43,010 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 17:59:43,696 INFO L130 PetriNetUnfolder]: 64/167 cut-off events. [2022-11-25 17:59:43,697 INFO L131 PetriNetUnfolder]: For 199/199 co-relation queries the response was YES. [2022-11-25 17:59:43,698 INFO L83 FinitePrefix]: Finished finitePrefix Result has 548 conditions, 167 events. 64/167 cut-off events. For 199/199 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 585 event pairs, 11 based on Foata normal form. 0/160 useless extension candidates. Maximal degree in co-relation 449. Up to 77 conditions per place. [2022-11-25 17:59:43,699 INFO L137 encePairwiseOnDemand]: 352/364 looper letters, 42 selfloop transitions, 20 changer transitions 2/64 dead transitions. [2022-11-25 17:59:43,699 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 64 transitions, 426 flow [2022-11-25 17:59:43,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-25 17:59:43,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-11-25 17:59:43,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1809 transitions. [2022-11-25 17:59:43,706 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4517982017982018 [2022-11-25 17:59:43,706 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 1809 transitions. [2022-11-25 17:59:43,706 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 1809 transitions. [2022-11-25 17:59:43,708 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 17:59:43,708 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 1809 transitions. [2022-11-25 17:59:43,713 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 164.45454545454547) internal successors, (1809), 11 states have internal predecessors, (1809), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:59:43,721 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 364.0) internal successors, (4368), 12 states have internal predecessors, (4368), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:59:43,723 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 364.0) internal successors, (4368), 12 states have internal predecessors, (4368), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:59:43,723 INFO L175 Difference]: Start difference. First operand has 51 places, 33 transitions, 202 flow. Second operand 11 states and 1809 transitions. [2022-11-25 17:59:43,723 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 64 transitions, 426 flow [2022-11-25 17:59:43,725 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 64 transitions, 412 flow, removed 1 selfloop flow, removed 4 redundant places. [2022-11-25 17:59:43,727 INFO L231 Difference]: Finished difference. Result has 62 places, 42 transitions, 297 flow [2022-11-25 17:59:43,728 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=364, PETRI_DIFFERENCE_MINUEND_FLOW=190, PETRI_DIFFERENCE_MINUEND_PLACES=47, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=33, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=297, PETRI_PLACES=62, PETRI_TRANSITIONS=42} [2022-11-25 17:59:43,728 INFO L288 CegarLoopForPetriNet]: 30 programPoint places, 32 predicate places. [2022-11-25 17:59:43,729 INFO L495 AbstractCegarLoop]: Abstraction has has 62 places, 42 transitions, 297 flow [2022-11-25 17:59:43,730 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 160.2) internal successors, (1602), 10 states have internal predecessors, (1602), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:59:43,730 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 17:59:43,730 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:59:43,730 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-25 17:59:43,731 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-11-25 17:59:43,731 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:59:43,731 INFO L85 PathProgramCache]: Analyzing trace with hash -823171537, now seen corresponding path program 1 times [2022-11-25 17:59:43,732 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:59:43,732 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1652666255] [2022-11-25 17:59:43,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:59:43,732 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:59:43,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:59:45,195 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:59:45,196 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:59:45,196 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1652666255] [2022-11-25 17:59:45,196 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1652666255] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:59:45,196 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:59:45,196 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-25 17:59:45,196 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [153207788] [2022-11-25 17:59:45,197 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:59:45,197 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-25 17:59:45,197 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:59:45,198 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-25 17:59:45,198 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-11-25 17:59:45,937 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 159 out of 364 [2022-11-25 17:59:45,939 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 42 transitions, 297 flow. Second operand has 10 states, 10 states have (on average 160.2) internal successors, (1602), 10 states have internal predecessors, (1602), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:59:45,940 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 17:59:45,940 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 159 of 364 [2022-11-25 17:59:45,940 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 17:59:46,562 INFO L130 PetriNetUnfolder]: 59/159 cut-off events. [2022-11-25 17:59:46,562 INFO L131 PetriNetUnfolder]: For 278/278 co-relation queries the response was YES. [2022-11-25 17:59:46,563 INFO L83 FinitePrefix]: Finished finitePrefix Result has 609 conditions, 159 events. 59/159 cut-off events. For 278/278 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 555 event pairs, 11 based on Foata normal form. 3/160 useless extension candidates. Maximal degree in co-relation 446. Up to 74 conditions per place. [2022-11-25 17:59:46,565 INFO L137 encePairwiseOnDemand]: 352/364 looper letters, 42 selfloop transitions, 20 changer transitions 1/63 dead transitions. [2022-11-25 17:59:46,565 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 72 places, 63 transitions, 483 flow [2022-11-25 17:59:46,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-25 17:59:46,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-11-25 17:59:46,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1807 transitions. [2022-11-25 17:59:46,572 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4512987012987013 [2022-11-25 17:59:46,572 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 1807 transitions. [2022-11-25 17:59:46,578 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 1807 transitions. [2022-11-25 17:59:46,579 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 17:59:46,579 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 1807 transitions. [2022-11-25 17:59:46,595 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 164.27272727272728) internal successors, (1807), 11 states have internal predecessors, (1807), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:59:46,612 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 364.0) internal successors, (4368), 12 states have internal predecessors, (4368), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:59:46,614 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 364.0) internal successors, (4368), 12 states have internal predecessors, (4368), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:59:46,615 INFO L175 Difference]: Start difference. First operand has 62 places, 42 transitions, 297 flow. Second operand 11 states and 1807 transitions. [2022-11-25 17:59:46,615 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 72 places, 63 transitions, 483 flow [2022-11-25 17:59:46,618 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 63 transitions, 441 flow, removed 6 selfloop flow, removed 6 redundant places. [2022-11-25 17:59:46,619 INFO L231 Difference]: Finished difference. Result has 67 places, 42 transitions, 298 flow [2022-11-25 17:59:46,619 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=364, PETRI_DIFFERENCE_MINUEND_FLOW=250, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=19, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=298, PETRI_PLACES=67, PETRI_TRANSITIONS=42} [2022-11-25 17:59:46,620 INFO L288 CegarLoopForPetriNet]: 30 programPoint places, 37 predicate places. [2022-11-25 17:59:46,620 INFO L495 AbstractCegarLoop]: Abstraction has has 67 places, 42 transitions, 298 flow [2022-11-25 17:59:46,621 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 160.2) internal successors, (1602), 10 states have internal predecessors, (1602), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:59:46,621 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 17:59:46,622 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:59:46,622 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-25 17:59:46,622 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-11-25 17:59:46,622 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:59:46,623 INFO L85 PathProgramCache]: Analyzing trace with hash -1696756369, now seen corresponding path program 1 times [2022-11-25 17:59:46,623 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:59:46,623 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1833512262] [2022-11-25 17:59:46,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:59:46,624 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:59:46,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:59:47,839 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:59:47,839 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:59:47,840 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1833512262] [2022-11-25 17:59:47,840 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1833512262] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:59:47,840 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:59:47,840 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-25 17:59:47,840 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1756934324] [2022-11-25 17:59:47,841 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:59:47,841 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-25 17:59:47,841 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:59:47,842 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-25 17:59:47,842 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-11-25 17:59:48,558 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 159 out of 364 [2022-11-25 17:59:48,560 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 67 places, 42 transitions, 298 flow. Second operand has 10 states, 10 states have (on average 160.2) internal successors, (1602), 10 states have internal predecessors, (1602), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:59:48,560 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 17:59:48,560 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 159 of 364 [2022-11-25 17:59:48,560 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 17:59:49,045 INFO L130 PetriNetUnfolder]: 62/166 cut-off events. [2022-11-25 17:59:49,046 INFO L131 PetriNetUnfolder]: For 301/301 co-relation queries the response was YES. [2022-11-25 17:59:49,047 INFO L83 FinitePrefix]: Finished finitePrefix Result has 653 conditions, 166 events. 62/166 cut-off events. For 301/301 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 581 event pairs, 19 based on Foata normal form. 0/166 useless extension candidates. Maximal degree in co-relation 580. Up to 107 conditions per place. [2022-11-25 17:59:49,048 INFO L137 encePairwiseOnDemand]: 355/364 looper letters, 41 selfloop transitions, 15 changer transitions 1/57 dead transitions. [2022-11-25 17:59:49,048 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 75 places, 57 transitions, 461 flow [2022-11-25 17:59:49,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-25 17:59:49,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-11-25 17:59:49,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1637 transitions. [2022-11-25 17:59:49,054 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.44972527472527474 [2022-11-25 17:59:49,055 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1637 transitions. [2022-11-25 17:59:49,055 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1637 transitions. [2022-11-25 17:59:49,057 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 17:59:49,057 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1637 transitions. [2022-11-25 17:59:49,061 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 163.7) internal successors, (1637), 10 states have internal predecessors, (1637), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:59:49,067 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 364.0) internal successors, (4004), 11 states have internal predecessors, (4004), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:59:49,069 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 364.0) internal successors, (4004), 11 states have internal predecessors, (4004), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:59:49,069 INFO L175 Difference]: Start difference. First operand has 67 places, 42 transitions, 298 flow. Second operand 10 states and 1637 transitions. [2022-11-25 17:59:49,069 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 75 places, 57 transitions, 461 flow [2022-11-25 17:59:49,072 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 57 transitions, 418 flow, removed 2 selfloop flow, removed 9 redundant places. [2022-11-25 17:59:49,074 INFO L231 Difference]: Finished difference. Result has 67 places, 42 transitions, 298 flow [2022-11-25 17:59:49,074 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=364, PETRI_DIFFERENCE_MINUEND_FLOW=255, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=298, PETRI_PLACES=67, PETRI_TRANSITIONS=42} [2022-11-25 17:59:49,075 INFO L288 CegarLoopForPetriNet]: 30 programPoint places, 37 predicate places. [2022-11-25 17:59:49,075 INFO L495 AbstractCegarLoop]: Abstraction has has 67 places, 42 transitions, 298 flow [2022-11-25 17:59:49,076 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 160.2) internal successors, (1602), 10 states have internal predecessors, (1602), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:59:49,076 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 17:59:49,076 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:59:49,076 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-25 17:59:49,077 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-11-25 17:59:49,077 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:59:49,077 INFO L85 PathProgramCache]: Analyzing trace with hash -1696756455, now seen corresponding path program 1 times [2022-11-25 17:59:49,077 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:59:49,078 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1633344596] [2022-11-25 17:59:49,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:59:49,078 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:59:49,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:59:50,495 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:59:50,495 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:59:50,495 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1633344596] [2022-11-25 17:59:50,495 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1633344596] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:59:50,496 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:59:50,496 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-25 17:59:50,496 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [743964023] [2022-11-25 17:59:50,496 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:59:50,496 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-25 17:59:50,497 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:59:50,497 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-25 17:59:50,497 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2022-11-25 17:59:51,461 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 159 out of 364 [2022-11-25 17:59:51,463 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 67 places, 42 transitions, 298 flow. Second operand has 10 states, 10 states have (on average 160.2) internal successors, (1602), 10 states have internal predecessors, (1602), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:59:51,463 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 17:59:51,463 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 159 of 364 [2022-11-25 17:59:51,464 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 17:59:52,171 INFO L130 PetriNetUnfolder]: 54/148 cut-off events. [2022-11-25 17:59:52,171 INFO L131 PetriNetUnfolder]: For 304/304 co-relation queries the response was YES. [2022-11-25 17:59:52,172 INFO L83 FinitePrefix]: Finished finitePrefix Result has 599 conditions, 148 events. 54/148 cut-off events. For 304/304 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 498 event pairs, 12 based on Foata normal form. 2/150 useless extension candidates. Maximal degree in co-relation 535. Up to 92 conditions per place. [2022-11-25 17:59:52,173 INFO L137 encePairwiseOnDemand]: 355/364 looper letters, 34 selfloop transitions, 10 changer transitions 12/56 dead transitions. [2022-11-25 17:59:52,174 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 76 places, 56 transitions, 444 flow [2022-11-25 17:59:52,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-25 17:59:52,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-11-25 17:59:52,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1795 transitions. [2022-11-25 17:59:52,180 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4483016983016983 [2022-11-25 17:59:52,180 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 1795 transitions. [2022-11-25 17:59:52,180 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 1795 transitions. [2022-11-25 17:59:52,182 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 17:59:52,182 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 1795 transitions. [2022-11-25 17:59:52,187 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 163.1818181818182) internal successors, (1795), 11 states have internal predecessors, (1795), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:59:52,194 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 364.0) internal successors, (4368), 12 states have internal predecessors, (4368), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:59:52,195 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 364.0) internal successors, (4368), 12 states have internal predecessors, (4368), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:59:52,196 INFO L175 Difference]: Start difference. First operand has 67 places, 42 transitions, 298 flow. Second operand 11 states and 1795 transitions. [2022-11-25 17:59:52,196 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 76 places, 56 transitions, 444 flow [2022-11-25 17:59:52,198 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 67 places, 56 transitions, 394 flow, removed 4 selfloop flow, removed 9 redundant places. [2022-11-25 17:59:52,200 INFO L231 Difference]: Finished difference. Result has 67 places, 34 transitions, 227 flow [2022-11-25 17:59:52,200 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=364, PETRI_DIFFERENCE_MINUEND_FLOW=242, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=227, PETRI_PLACES=67, PETRI_TRANSITIONS=34} [2022-11-25 17:59:52,201 INFO L288 CegarLoopForPetriNet]: 30 programPoint places, 37 predicate places. [2022-11-25 17:59:52,201 INFO L495 AbstractCegarLoop]: Abstraction has has 67 places, 34 transitions, 227 flow [2022-11-25 17:59:52,202 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 160.2) internal successors, (1602), 10 states have internal predecessors, (1602), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:59:52,202 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 17:59:52,202 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:59:52,203 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-25 17:59:52,203 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-11-25 17:59:52,203 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:59:52,203 INFO L85 PathProgramCache]: Analyzing trace with hash 666450139, now seen corresponding path program 2 times [2022-11-25 17:59:52,204 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:59:52,204 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1584095267] [2022-11-25 17:59:52,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:59:52,204 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:59:52,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:59:53,400 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:59:53,400 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:59:53,401 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1584095267] [2022-11-25 17:59:53,401 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1584095267] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:59:53,401 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:59:53,401 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-25 17:59:53,401 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1876028582] [2022-11-25 17:59:53,402 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:59:53,402 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-25 17:59:53,402 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:59:53,403 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-25 17:59:53,403 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2022-11-25 17:59:54,176 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 159 out of 364 [2022-11-25 17:59:54,177 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 67 places, 34 transitions, 227 flow. Second operand has 10 states, 10 states have (on average 160.2) internal successors, (1602), 10 states have internal predecessors, (1602), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:59:54,177 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 17:59:54,177 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 159 of 364 [2022-11-25 17:59:54,177 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 17:59:54,623 INFO L130 PetriNetUnfolder]: 45/120 cut-off events. [2022-11-25 17:59:54,623 INFO L131 PetriNetUnfolder]: For 230/230 co-relation queries the response was YES. [2022-11-25 17:59:54,624 INFO L83 FinitePrefix]: Finished finitePrefix Result has 474 conditions, 120 events. 45/120 cut-off events. For 230/230 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 353 event pairs, 3 based on Foata normal form. 3/123 useless extension candidates. Maximal degree in co-relation 414. Up to 23 conditions per place. [2022-11-25 17:59:54,625 INFO L137 encePairwiseOnDemand]: 354/364 looper letters, 30 selfloop transitions, 22 changer transitions 0/52 dead transitions. [2022-11-25 17:59:54,625 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 52 transitions, 406 flow [2022-11-25 17:59:54,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-25 17:59:54,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-11-25 17:59:54,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1630 transitions. [2022-11-25 17:59:54,630 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4478021978021978 [2022-11-25 17:59:54,631 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1630 transitions. [2022-11-25 17:59:54,631 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1630 transitions. [2022-11-25 17:59:54,632 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 17:59:54,633 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1630 transitions. [2022-11-25 17:59:54,637 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 163.0) internal successors, (1630), 10 states have internal predecessors, (1630), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:59:54,643 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 364.0) internal successors, (4004), 11 states have internal predecessors, (4004), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:59:54,644 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 364.0) internal successors, (4004), 11 states have internal predecessors, (4004), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:59:54,644 INFO L175 Difference]: Start difference. First operand has 67 places, 34 transitions, 227 flow. Second operand 10 states and 1630 transitions. [2022-11-25 17:59:54,645 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 64 places, 52 transitions, 406 flow [2022-11-25 17:59:54,647 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 52 transitions, 359 flow, removed 5 selfloop flow, removed 10 redundant places. [2022-11-25 17:59:54,648 INFO L231 Difference]: Finished difference. Result has 58 places, 38 transitions, 291 flow [2022-11-25 17:59:54,649 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=364, PETRI_DIFFERENCE_MINUEND_FLOW=184, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=33, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=13, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=291, PETRI_PLACES=58, PETRI_TRANSITIONS=38} [2022-11-25 17:59:54,649 INFO L288 CegarLoopForPetriNet]: 30 programPoint places, 28 predicate places. [2022-11-25 17:59:54,649 INFO L495 AbstractCegarLoop]: Abstraction has has 58 places, 38 transitions, 291 flow [2022-11-25 17:59:54,650 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 160.2) internal successors, (1602), 10 states have internal predecessors, (1602), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:59:54,650 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 17:59:54,651 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:59:54,651 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-25 17:59:54,651 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-11-25 17:59:54,652 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:59:54,652 INFO L85 PathProgramCache]: Analyzing trace with hash 666450114, now seen corresponding path program 2 times [2022-11-25 17:59:54,652 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:59:54,652 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2056959379] [2022-11-25 17:59:54,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:59:54,653 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:59:54,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:59:55,813 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:59:55,814 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:59:55,814 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2056959379] [2022-11-25 17:59:55,814 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2056959379] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:59:55,814 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:59:55,814 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-25 17:59:55,814 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [328087245] [2022-11-25 17:59:55,815 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:59:55,815 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-25 17:59:55,815 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:59:55,815 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-25 17:59:55,816 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2022-11-25 17:59:56,546 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 159 out of 364 [2022-11-25 17:59:56,548 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 38 transitions, 291 flow. Second operand has 10 states, 10 states have (on average 160.2) internal successors, (1602), 10 states have internal predecessors, (1602), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:59:56,548 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 17:59:56,548 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 159 of 364 [2022-11-25 17:59:56,548 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 17:59:57,035 INFO L130 PetriNetUnfolder]: 43/113 cut-off events. [2022-11-25 17:59:57,036 INFO L131 PetriNetUnfolder]: For 224/224 co-relation queries the response was YES. [2022-11-25 17:59:57,036 INFO L83 FinitePrefix]: Finished finitePrefix Result has 486 conditions, 113 events. 43/113 cut-off events. For 224/224 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 330 event pairs, 3 based on Foata normal form. 3/116 useless extension candidates. Maximal degree in co-relation 438. Up to 23 conditions per place. [2022-11-25 17:59:57,037 INFO L137 encePairwiseOnDemand]: 354/364 looper letters, 29 selfloop transitions, 21 changer transitions 0/50 dead transitions. [2022-11-25 17:59:57,037 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 67 places, 50 transitions, 417 flow [2022-11-25 17:59:57,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-25 17:59:57,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-11-25 17:59:57,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1629 transitions. [2022-11-25 17:59:57,042 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.44752747252747255 [2022-11-25 17:59:57,043 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1629 transitions. [2022-11-25 17:59:57,043 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1629 transitions. [2022-11-25 17:59:57,044 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 17:59:57,044 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1629 transitions. [2022-11-25 17:59:57,047 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 162.9) internal successors, (1629), 10 states have internal predecessors, (1629), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:59:57,053 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 364.0) internal successors, (4004), 11 states have internal predecessors, (4004), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:59:57,054 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 364.0) internal successors, (4004), 11 states have internal predecessors, (4004), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:59:57,055 INFO L175 Difference]: Start difference. First operand has 58 places, 38 transitions, 291 flow. Second operand 10 states and 1629 transitions. [2022-11-25 17:59:57,055 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 67 places, 50 transitions, 417 flow [2022-11-25 17:59:57,057 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 50 transitions, 370 flow, removed 7 selfloop flow, removed 7 redundant places. [2022-11-25 17:59:57,059 INFO L231 Difference]: Finished difference. Result has 60 places, 36 transitions, 270 flow [2022-11-25 17:59:57,059 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=364, PETRI_DIFFERENCE_MINUEND_FLOW=228, PETRI_DIFFERENCE_MINUEND_PLACES=51, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=21, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=270, PETRI_PLACES=60, PETRI_TRANSITIONS=36} [2022-11-25 17:59:57,060 INFO L288 CegarLoopForPetriNet]: 30 programPoint places, 30 predicate places. [2022-11-25 17:59:57,060 INFO L495 AbstractCegarLoop]: Abstraction has has 60 places, 36 transitions, 270 flow [2022-11-25 17:59:57,061 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 160.2) internal successors, (1602), 10 states have internal predecessors, (1602), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:59:57,061 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 17:59:57,061 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:59:57,061 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-25 17:59:57,062 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-11-25 17:59:57,062 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:59:57,062 INFO L85 PathProgramCache]: Analyzing trace with hash -15256429, now seen corresponding path program 1 times [2022-11-25 17:59:57,062 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:59:57,063 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [104184355] [2022-11-25 17:59:57,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:59:57,063 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:59:57,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:59:58,740 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:59:58,740 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:59:58,740 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [104184355] [2022-11-25 17:59:58,741 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [104184355] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:59:58,741 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:59:58,741 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-25 17:59:58,741 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1911097112] [2022-11-25 17:59:58,741 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:59:58,741 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-25 17:59:58,742 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:59:58,742 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-25 17:59:58,742 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2022-11-25 18:00:00,189 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 151 out of 364 [2022-11-25 18:00:00,191 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 36 transitions, 270 flow. Second operand has 12 states, 12 states have (on average 152.25) internal successors, (1827), 12 states have internal predecessors, (1827), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:00:00,191 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 18:00:00,191 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 151 of 364 [2022-11-25 18:00:00,191 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 18:00:01,064 INFO L130 PetriNetUnfolder]: 49/141 cut-off events. [2022-11-25 18:00:01,065 INFO L131 PetriNetUnfolder]: For 288/288 co-relation queries the response was YES. [2022-11-25 18:00:01,065 INFO L83 FinitePrefix]: Finished finitePrefix Result has 616 conditions, 141 events. 49/141 cut-off events. For 288/288 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 482 event pairs, 18 based on Foata normal form. 2/143 useless extension candidates. Maximal degree in co-relation 480. Up to 97 conditions per place. [2022-11-25 18:00:01,067 INFO L137 encePairwiseOnDemand]: 353/364 looper letters, 46 selfloop transitions, 17 changer transitions 0/63 dead transitions. [2022-11-25 18:00:01,067 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 71 places, 63 transitions, 565 flow [2022-11-25 18:00:01,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-25 18:00:01,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2022-11-25 18:00:01,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1854 transitions. [2022-11-25 18:00:01,072 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.42445054945054944 [2022-11-25 18:00:01,072 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1854 transitions. [2022-11-25 18:00:01,073 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1854 transitions. [2022-11-25 18:00:01,074 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 18:00:01,074 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1854 transitions. [2022-11-25 18:00:01,078 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 154.5) internal successors, (1854), 12 states have internal predecessors, (1854), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:00:01,085 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 364.0) internal successors, (4732), 13 states have internal predecessors, (4732), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:00:01,087 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 364.0) internal successors, (4732), 13 states have internal predecessors, (4732), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:00:01,087 INFO L175 Difference]: Start difference. First operand has 60 places, 36 transitions, 270 flow. Second operand 12 states and 1854 transitions. [2022-11-25 18:00:01,087 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 71 places, 63 transitions, 565 flow [2022-11-25 18:00:01,090 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 63 places, 63 transitions, 501 flow, removed 2 selfloop flow, removed 8 redundant places. [2022-11-25 18:00:01,092 INFO L231 Difference]: Finished difference. Result has 72 places, 51 transitions, 418 flow [2022-11-25 18:00:01,092 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=364, PETRI_DIFFERENCE_MINUEND_FLOW=231, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=418, PETRI_PLACES=72, PETRI_TRANSITIONS=51} [2022-11-25 18:00:01,093 INFO L288 CegarLoopForPetriNet]: 30 programPoint places, 42 predicate places. [2022-11-25 18:00:01,093 INFO L495 AbstractCegarLoop]: Abstraction has has 72 places, 51 transitions, 418 flow [2022-11-25 18:00:01,094 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 152.25) internal successors, (1827), 12 states have internal predecessors, (1827), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:00:01,094 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 18:00:01,094 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:00:01,094 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-11-25 18:00:01,095 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-11-25 18:00:01,095 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:00:01,095 INFO L85 PathProgramCache]: Analyzing trace with hash 1459039978, now seen corresponding path program 1 times [2022-11-25 18:00:01,095 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:00:01,096 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1937822726] [2022-11-25 18:00:01,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:00:01,096 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:00:01,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:00:02,840 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:00:02,840 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:00:02,840 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1937822726] [2022-11-25 18:00:02,840 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1937822726] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:00:02,840 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:00:02,841 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-25 18:00:02,841 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1210064503] [2022-11-25 18:00:02,841 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:00:02,841 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-25 18:00:02,841 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:00:02,842 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-25 18:00:02,842 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2022-11-25 18:00:04,590 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 151 out of 364 [2022-11-25 18:00:04,592 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 72 places, 51 transitions, 418 flow. Second operand has 12 states, 12 states have (on average 152.25) internal successors, (1827), 12 states have internal predecessors, (1827), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:00:04,592 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 18:00:04,592 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 151 of 364 [2022-11-25 18:00:04,592 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 18:00:05,675 INFO L130 PetriNetUnfolder]: 54/159 cut-off events. [2022-11-25 18:00:05,675 INFO L131 PetriNetUnfolder]: For 429/429 co-relation queries the response was YES. [2022-11-25 18:00:05,676 INFO L83 FinitePrefix]: Finished finitePrefix Result has 754 conditions, 159 events. 54/159 cut-off events. For 429/429 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 590 event pairs, 11 based on Foata normal form. 4/163 useless extension candidates. Maximal degree in co-relation 683. Up to 54 conditions per place. [2022-11-25 18:00:05,678 INFO L137 encePairwiseOnDemand]: 353/364 looper letters, 43 selfloop transitions, 27 changer transitions 10/80 dead transitions. [2022-11-25 18:00:05,678 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 86 places, 80 transitions, 751 flow [2022-11-25 18:00:05,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-25 18:00:05,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2022-11-25 18:00:05,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 2315 transitions. [2022-11-25 18:00:05,683 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.423992673992674 [2022-11-25 18:00:05,683 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 2315 transitions. [2022-11-25 18:00:05,683 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 2315 transitions. [2022-11-25 18:00:05,688 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 18:00:05,688 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 2315 transitions. [2022-11-25 18:00:05,693 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 154.33333333333334) internal successors, (2315), 15 states have internal predecessors, (2315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:00:05,701 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 364.0) internal successors, (5824), 16 states have internal predecessors, (5824), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:00:05,703 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 364.0) internal successors, (5824), 16 states have internal predecessors, (5824), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:00:05,703 INFO L175 Difference]: Start difference. First operand has 72 places, 51 transitions, 418 flow. Second operand 15 states and 2315 transitions. [2022-11-25 18:00:05,703 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 86 places, 80 transitions, 751 flow [2022-11-25 18:00:05,707 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 85 places, 80 transitions, 735 flow, removed 5 selfloop flow, removed 1 redundant places. [2022-11-25 18:00:05,711 INFO L231 Difference]: Finished difference. Result has 89 places, 55 transitions, 501 flow [2022-11-25 18:00:05,711 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=364, PETRI_DIFFERENCE_MINUEND_FLOW=394, PETRI_DIFFERENCE_MINUEND_PLACES=71, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=50, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=501, PETRI_PLACES=89, PETRI_TRANSITIONS=55} [2022-11-25 18:00:05,712 INFO L288 CegarLoopForPetriNet]: 30 programPoint places, 59 predicate places. [2022-11-25 18:00:05,712 INFO L495 AbstractCegarLoop]: Abstraction has has 89 places, 55 transitions, 501 flow [2022-11-25 18:00:05,713 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 152.25) internal successors, (1827), 12 states have internal predecessors, (1827), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:00:05,713 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 18:00:05,713 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:00:05,713 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-11-25 18:00:05,714 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-11-25 18:00:05,714 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:00:05,714 INFO L85 PathProgramCache]: Analyzing trace with hash -1968925848, now seen corresponding path program 2 times [2022-11-25 18:00:05,714 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:00:05,715 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1263548375] [2022-11-25 18:00:05,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:00:05,715 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:00:05,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:00:07,202 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:00:07,203 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:00:07,203 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1263548375] [2022-11-25 18:00:07,203 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1263548375] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:00:07,203 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:00:07,203 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-25 18:00:07,204 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [692887248] [2022-11-25 18:00:07,204 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:00:07,205 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-25 18:00:07,205 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:00:07,206 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-25 18:00:07,207 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2022-11-25 18:00:08,748 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 151 out of 364 [2022-11-25 18:00:08,750 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 89 places, 55 transitions, 501 flow. Second operand has 12 states, 12 states have (on average 152.25) internal successors, (1827), 12 states have internal predecessors, (1827), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:00:08,750 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 18:00:08,750 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 151 of 364 [2022-11-25 18:00:08,750 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 18:00:10,078 INFO L130 PetriNetUnfolder]: 54/162 cut-off events. [2022-11-25 18:00:10,078 INFO L131 PetriNetUnfolder]: For 567/567 co-relation queries the response was YES. [2022-11-25 18:00:10,080 INFO L83 FinitePrefix]: Finished finitePrefix Result has 841 conditions, 162 events. 54/162 cut-off events. For 567/567 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 599 event pairs, 9 based on Foata normal form. 2/164 useless extension candidates. Maximal degree in co-relation 760. Up to 34 conditions per place. [2022-11-25 18:00:10,081 INFO L137 encePairwiseOnDemand]: 352/364 looper letters, 44 selfloop transitions, 42 changer transitions 0/86 dead transitions. [2022-11-25 18:00:10,082 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 100 places, 86 transitions, 856 flow [2022-11-25 18:00:10,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-11-25 18:00:10,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2022-11-25 18:00:10,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 2932 transitions. [2022-11-25 18:00:10,087 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.42394447657605555 [2022-11-25 18:00:10,088 INFO L72 ComplementDD]: Start complementDD. Operand 19 states and 2932 transitions. [2022-11-25 18:00:10,088 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 2932 transitions. [2022-11-25 18:00:10,089 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 18:00:10,089 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 19 states and 2932 transitions. [2022-11-25 18:00:10,095 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 20 states, 19 states have (on average 154.31578947368422) internal successors, (2932), 19 states have internal predecessors, (2932), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:00:10,105 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 20 states, 20 states have (on average 364.0) internal successors, (7280), 20 states have internal predecessors, (7280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:00:10,108 INFO L81 ComplementDD]: Finished complementDD. Result has 20 states, 20 states have (on average 364.0) internal successors, (7280), 20 states have internal predecessors, (7280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:00:10,108 INFO L175 Difference]: Start difference. First operand has 89 places, 55 transitions, 501 flow. Second operand 19 states and 2932 transitions. [2022-11-25 18:00:10,108 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 100 places, 86 transitions, 856 flow [2022-11-25 18:00:10,113 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 91 places, 86 transitions, 754 flow, removed 36 selfloop flow, removed 9 redundant places. [2022-11-25 18:00:10,115 INFO L231 Difference]: Finished difference. Result has 95 places, 68 transitions, 637 flow [2022-11-25 18:00:10,115 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=364, PETRI_DIFFERENCE_MINUEND_FLOW=421, PETRI_DIFFERENCE_MINUEND_PLACES=73, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=55, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=32, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=637, PETRI_PLACES=95, PETRI_TRANSITIONS=68} [2022-11-25 18:00:10,116 INFO L288 CegarLoopForPetriNet]: 30 programPoint places, 65 predicate places. [2022-11-25 18:00:10,116 INFO L495 AbstractCegarLoop]: Abstraction has has 95 places, 68 transitions, 637 flow [2022-11-25 18:00:10,117 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 152.25) internal successors, (1827), 12 states have internal predecessors, (1827), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:00:10,117 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 18:00:10,118 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:00:10,118 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-11-25 18:00:10,118 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-11-25 18:00:10,118 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:00:10,119 INFO L85 PathProgramCache]: Analyzing trace with hash 1162174348, now seen corresponding path program 3 times [2022-11-25 18:00:10,119 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:00:10,119 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1853249154] [2022-11-25 18:00:10,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:00:10,119 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:00:10,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:00:11,859 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:00:11,859 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:00:11,859 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1853249154] [2022-11-25 18:00:11,859 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1853249154] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:00:11,859 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:00:11,859 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-25 18:00:11,860 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1800275385] [2022-11-25 18:00:11,860 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:00:11,860 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-25 18:00:11,860 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:00:11,861 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-25 18:00:11,861 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2022-11-25 18:00:13,645 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 151 out of 364 [2022-11-25 18:00:13,647 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 95 places, 68 transitions, 637 flow. Second operand has 12 states, 12 states have (on average 152.25) internal successors, (1827), 12 states have internal predecessors, (1827), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:00:13,647 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 18:00:13,647 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 151 of 364 [2022-11-25 18:00:13,647 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 18:00:14,484 INFO L130 PetriNetUnfolder]: 53/159 cut-off events. [2022-11-25 18:00:14,484 INFO L131 PetriNetUnfolder]: For 509/509 co-relation queries the response was YES. [2022-11-25 18:00:14,485 INFO L83 FinitePrefix]: Finished finitePrefix Result has 830 conditions, 159 events. 53/159 cut-off events. For 509/509 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 584 event pairs, 7 based on Foata normal form. 2/161 useless extension candidates. Maximal degree in co-relation 766. Up to 54 conditions per place. [2022-11-25 18:00:14,487 INFO L137 encePairwiseOnDemand]: 352/364 looper letters, 47 selfloop transitions, 35 changer transitions 0/82 dead transitions. [2022-11-25 18:00:14,487 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 106 places, 82 transitions, 848 flow [2022-11-25 18:00:14,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-25 18:00:14,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2022-11-25 18:00:14,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1863 transitions. [2022-11-25 18:00:14,491 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.426510989010989 [2022-11-25 18:00:14,491 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1863 transitions. [2022-11-25 18:00:14,492 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1863 transitions. [2022-11-25 18:00:14,493 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 18:00:14,493 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1863 transitions. [2022-11-25 18:00:14,496 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 155.25) internal successors, (1863), 12 states have internal predecessors, (1863), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:00:14,502 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 364.0) internal successors, (4732), 13 states have internal predecessors, (4732), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:00:14,503 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 364.0) internal successors, (4732), 13 states have internal predecessors, (4732), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:00:14,504 INFO L175 Difference]: Start difference. First operand has 95 places, 68 transitions, 637 flow. Second operand 12 states and 1863 transitions. [2022-11-25 18:00:14,504 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 106 places, 82 transitions, 848 flow [2022-11-25 18:00:14,509 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 98 places, 82 transitions, 781 flow, removed 13 selfloop flow, removed 8 redundant places. [2022-11-25 18:00:14,510 INFO L231 Difference]: Finished difference. Result has 99 places, 68 transitions, 645 flow [2022-11-25 18:00:14,511 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=364, PETRI_DIFFERENCE_MINUEND_FLOW=570, PETRI_DIFFERENCE_MINUEND_PLACES=87, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=68, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=35, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=645, PETRI_PLACES=99, PETRI_TRANSITIONS=68} [2022-11-25 18:00:14,511 INFO L288 CegarLoopForPetriNet]: 30 programPoint places, 69 predicate places. [2022-11-25 18:00:14,512 INFO L495 AbstractCegarLoop]: Abstraction has has 99 places, 68 transitions, 645 flow [2022-11-25 18:00:14,512 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 152.25) internal successors, (1827), 12 states have internal predecessors, (1827), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:00:14,513 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 18:00:14,513 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:00:14,513 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-11-25 18:00:14,513 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-11-25 18:00:14,514 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:00:14,514 INFO L85 PathProgramCache]: Analyzing trace with hash 1245521853, now seen corresponding path program 2 times [2022-11-25 18:00:14,514 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:00:14,514 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [885394594] [2022-11-25 18:00:14,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:00:14,515 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:00:14,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:00:16,032 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:00:16,032 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:00:16,032 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [885394594] [2022-11-25 18:00:16,033 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [885394594] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:00:16,033 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:00:16,033 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-25 18:00:16,033 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1994698216] [2022-11-25 18:00:16,033 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:00:16,033 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-25 18:00:16,034 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:00:16,034 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-25 18:00:16,034 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2022-11-25 18:00:18,030 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 151 out of 364 [2022-11-25 18:00:18,032 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 99 places, 68 transitions, 645 flow. Second operand has 12 states, 12 states have (on average 152.25) internal successors, (1827), 12 states have internal predecessors, (1827), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:00:18,032 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 18:00:18,032 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 151 of 364 [2022-11-25 18:00:18,032 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 18:00:18,842 INFO L130 PetriNetUnfolder]: 52/156 cut-off events. [2022-11-25 18:00:18,842 INFO L131 PetriNetUnfolder]: For 501/501 co-relation queries the response was YES. [2022-11-25 18:00:18,842 INFO L83 FinitePrefix]: Finished finitePrefix Result has 820 conditions, 156 events. 52/156 cut-off events. For 501/501 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 569 event pairs, 8 based on Foata normal form. 2/158 useless extension candidates. Maximal degree in co-relation 755. Up to 60 conditions per place. [2022-11-25 18:00:18,843 INFO L137 encePairwiseOnDemand]: 352/364 looper letters, 42 selfloop transitions, 27 changer transitions 12/81 dead transitions. [2022-11-25 18:00:18,846 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 110 places, 81 transitions, 843 flow [2022-11-25 18:00:18,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-25 18:00:18,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2022-11-25 18:00:18,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1862 transitions. [2022-11-25 18:00:18,852 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.42628205128205127 [2022-11-25 18:00:18,853 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1862 transitions. [2022-11-25 18:00:18,853 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1862 transitions. [2022-11-25 18:00:18,854 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 18:00:18,854 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1862 transitions. [2022-11-25 18:00:18,857 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 155.16666666666666) internal successors, (1862), 12 states have internal predecessors, (1862), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:00:18,865 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 364.0) internal successors, (4732), 13 states have internal predecessors, (4732), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:00:18,867 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 364.0) internal successors, (4732), 13 states have internal predecessors, (4732), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:00:18,868 INFO L175 Difference]: Start difference. First operand has 99 places, 68 transitions, 645 flow. Second operand 12 states and 1862 transitions. [2022-11-25 18:00:18,868 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 110 places, 81 transitions, 843 flow [2022-11-25 18:00:18,873 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 101 places, 81 transitions, 777 flow, removed 3 selfloop flow, removed 9 redundant places. [2022-11-25 18:00:18,875 INFO L231 Difference]: Finished difference. Result has 101 places, 59 transitions, 549 flow [2022-11-25 18:00:18,875 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=364, PETRI_DIFFERENCE_MINUEND_FLOW=568, PETRI_DIFFERENCE_MINUEND_PLACES=90, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=67, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=27, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=549, PETRI_PLACES=101, PETRI_TRANSITIONS=59} [2022-11-25 18:00:18,875 INFO L288 CegarLoopForPetriNet]: 30 programPoint places, 71 predicate places. [2022-11-25 18:00:18,876 INFO L495 AbstractCegarLoop]: Abstraction has has 101 places, 59 transitions, 549 flow [2022-11-25 18:00:18,877 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 152.25) internal successors, (1827), 12 states have internal predecessors, (1827), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:00:18,877 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 18:00:18,877 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:00:18,877 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-11-25 18:00:18,878 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-11-25 18:00:18,878 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:00:18,878 INFO L85 PathProgramCache]: Analyzing trace with hash -2067236173, now seen corresponding path program 3 times [2022-11-25 18:00:18,878 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:00:18,879 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [486767814] [2022-11-25 18:00:18,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:00:18,879 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:00:18,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:00:20,458 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:00:20,458 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:00:20,458 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [486767814] [2022-11-25 18:00:20,458 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [486767814] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:00:20,459 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:00:20,459 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-25 18:00:20,459 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1096764735] [2022-11-25 18:00:20,459 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:00:20,459 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-25 18:00:20,459 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:00:20,460 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-25 18:00:20,460 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2022-11-25 18:00:22,184 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 151 out of 364 [2022-11-25 18:00:22,186 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 101 places, 59 transitions, 549 flow. Second operand has 12 states, 12 states have (on average 152.25) internal successors, (1827), 12 states have internal predecessors, (1827), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:00:22,186 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 18:00:22,186 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 151 of 364 [2022-11-25 18:00:22,187 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 18:00:23,293 INFO L130 PetriNetUnfolder]: 46/136 cut-off events. [2022-11-25 18:00:23,293 INFO L131 PetriNetUnfolder]: For 433/433 co-relation queries the response was YES. [2022-11-25 18:00:23,293 INFO L83 FinitePrefix]: Finished finitePrefix Result has 715 conditions, 136 events. 46/136 cut-off events. For 433/433 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 453 event pairs, 6 based on Foata normal form. 4/140 useless extension candidates. Maximal degree in co-relation 669. Up to 34 conditions per place. [2022-11-25 18:00:23,294 INFO L137 encePairwiseOnDemand]: 353/364 looper letters, 16 selfloop transitions, 8 changer transitions 46/70 dead transitions. [2022-11-25 18:00:23,294 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 105 places, 70 transitions, 711 flow [2022-11-25 18:00:23,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-25 18:00:23,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2022-11-25 18:00:23,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 2162 transitions. [2022-11-25 18:00:23,298 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.42425431711145994 [2022-11-25 18:00:23,299 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 2162 transitions. [2022-11-25 18:00:23,299 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 2162 transitions. [2022-11-25 18:00:23,300 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 18:00:23,300 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 2162 transitions. [2022-11-25 18:00:23,304 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 154.42857142857142) internal successors, (2162), 14 states have internal predecessors, (2162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:00:23,311 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 364.0) internal successors, (5460), 15 states have internal predecessors, (5460), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:00:23,313 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 364.0) internal successors, (5460), 15 states have internal predecessors, (5460), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:00:23,313 INFO L175 Difference]: Start difference. First operand has 101 places, 59 transitions, 549 flow. Second operand 14 states and 2162 transitions. [2022-11-25 18:00:23,313 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 105 places, 70 transitions, 711 flow [2022-11-25 18:00:23,335 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 93 places, 70 transitions, 639 flow, removed 1 selfloop flow, removed 12 redundant places. [2022-11-25 18:00:23,337 INFO L231 Difference]: Finished difference. Result has 93 places, 23 transitions, 179 flow [2022-11-25 18:00:23,337 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=364, PETRI_DIFFERENCE_MINUEND_FLOW=456, PETRI_DIFFERENCE_MINUEND_PLACES=80, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=57, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=49, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=179, PETRI_PLACES=93, PETRI_TRANSITIONS=23} [2022-11-25 18:00:23,339 INFO L288 CegarLoopForPetriNet]: 30 programPoint places, 63 predicate places. [2022-11-25 18:00:23,339 INFO L495 AbstractCegarLoop]: Abstraction has has 93 places, 23 transitions, 179 flow [2022-11-25 18:00:23,341 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 152.25) internal successors, (1827), 12 states have internal predecessors, (1827), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:00:23,341 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 18:00:23,341 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:00:23,341 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-11-25 18:00:23,341 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-11-25 18:00:23,342 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:00:23,342 INFO L85 PathProgramCache]: Analyzing trace with hash -251678429, now seen corresponding path program 4 times [2022-11-25 18:00:23,343 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:00:23,343 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2033207778] [2022-11-25 18:00:23,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:00:23,343 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:00:23,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:00:24,772 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:00:24,773 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:00:24,773 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2033207778] [2022-11-25 18:00:24,773 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2033207778] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:00:24,773 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:00:24,773 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-25 18:00:24,773 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [746073792] [2022-11-25 18:00:24,774 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:00:24,774 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-25 18:00:24,774 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:00:24,774 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-25 18:00:24,775 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-11-25 18:00:26,476 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 149 out of 364 [2022-11-25 18:00:26,478 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 93 places, 23 transitions, 179 flow. Second operand has 11 states, 11 states have (on average 150.36363636363637) internal successors, (1654), 11 states have internal predecessors, (1654), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:00:26,478 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 18:00:26,478 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 149 of 364 [2022-11-25 18:00:26,478 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 18:00:27,183 INFO L130 PetriNetUnfolder]: 16/56 cut-off events. [2022-11-25 18:00:27,183 INFO L131 PetriNetUnfolder]: For 127/127 co-relation queries the response was YES. [2022-11-25 18:00:27,184 INFO L83 FinitePrefix]: Finished finitePrefix Result has 279 conditions, 56 events. 16/56 cut-off events. For 127/127 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 111 event pairs, 2 based on Foata normal form. 2/58 useless extension candidates. Maximal degree in co-relation 254. Up to 17 conditions per place. [2022-11-25 18:00:27,185 INFO L137 encePairwiseOnDemand]: 354/364 looper letters, 22 selfloop transitions, 16 changer transitions 0/38 dead transitions. [2022-11-25 18:00:27,185 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 83 places, 38 transitions, 340 flow [2022-11-25 18:00:27,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-25 18:00:27,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2022-11-25 18:00:27,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1822 transitions. [2022-11-25 18:00:27,189 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.41712454212454214 [2022-11-25 18:00:27,189 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1822 transitions. [2022-11-25 18:00:27,189 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1822 transitions. [2022-11-25 18:00:27,190 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 18:00:27,190 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1822 transitions. [2022-11-25 18:00:27,194 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 151.83333333333334) internal successors, (1822), 12 states have internal predecessors, (1822), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:00:27,200 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 364.0) internal successors, (4732), 13 states have internal predecessors, (4732), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:00:27,201 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 364.0) internal successors, (4732), 13 states have internal predecessors, (4732), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:00:27,202 INFO L175 Difference]: Start difference. First operand has 93 places, 23 transitions, 179 flow. Second operand 12 states and 1822 transitions. [2022-11-25 18:00:27,202 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 83 places, 38 transitions, 340 flow [2022-11-25 18:00:27,204 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 38 transitions, 250 flow, removed 17 selfloop flow, removed 26 redundant places. [2022-11-25 18:00:27,205 INFO L231 Difference]: Finished difference. Result has 60 places, 30 transitions, 197 flow [2022-11-25 18:00:27,205 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=364, PETRI_DIFFERENCE_MINUEND_FLOW=108, PETRI_DIFFERENCE_MINUEND_PLACES=46, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=23, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=11, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=197, PETRI_PLACES=60, PETRI_TRANSITIONS=30} [2022-11-25 18:00:27,206 INFO L288 CegarLoopForPetriNet]: 30 programPoint places, 30 predicate places. [2022-11-25 18:00:27,206 INFO L495 AbstractCegarLoop]: Abstraction has has 60 places, 30 transitions, 197 flow [2022-11-25 18:00:27,207 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 150.36363636363637) internal successors, (1654), 11 states have internal predecessors, (1654), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:00:27,207 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 18:00:27,207 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:00:27,207 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-11-25 18:00:27,207 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-11-25 18:00:27,208 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:00:27,208 INFO L85 PathProgramCache]: Analyzing trace with hash -349988704, now seen corresponding path program 4 times [2022-11-25 18:00:27,208 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:00:27,208 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1966745284] [2022-11-25 18:00:27,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:00:27,209 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:00:27,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:00:28,805 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:00:28,805 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:00:28,805 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1966745284] [2022-11-25 18:00:28,805 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1966745284] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:00:28,805 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:00:28,805 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-25 18:00:28,806 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [331667664] [2022-11-25 18:00:28,806 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:00:28,806 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-25 18:00:28,806 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:00:28,807 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-25 18:00:28,807 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2022-11-25 18:00:30,238 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 151 out of 364 [2022-11-25 18:00:30,240 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 30 transitions, 197 flow. Second operand has 12 states, 12 states have (on average 152.25) internal successors, (1827), 12 states have internal predecessors, (1827), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:00:30,240 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 18:00:30,240 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 151 of 364 [2022-11-25 18:00:30,241 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 18:00:31,325 INFO L130 PetriNetUnfolder]: 15/53 cut-off events. [2022-11-25 18:00:31,325 INFO L131 PetriNetUnfolder]: For 95/95 co-relation queries the response was YES. [2022-11-25 18:00:31,325 INFO L83 FinitePrefix]: Finished finitePrefix Result has 238 conditions, 53 events. 15/53 cut-off events. For 95/95 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 104 event pairs, 1 based on Foata normal form. 2/55 useless extension candidates. Maximal degree in co-relation 221. Up to 12 conditions per place. [2022-11-25 18:00:31,326 INFO L137 encePairwiseOnDemand]: 353/364 looper letters, 12 selfloop transitions, 15 changer transitions 15/42 dead transitions. [2022-11-25 18:00:31,326 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 75 places, 42 transitions, 316 flow [2022-11-25 18:00:31,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-25 18:00:31,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2022-11-25 18:00:31,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 2456 transitions. [2022-11-25 18:00:31,331 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4217032967032967 [2022-11-25 18:00:31,332 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 2456 transitions. [2022-11-25 18:00:31,332 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 2456 transitions. [2022-11-25 18:00:31,333 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 18:00:31,333 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 2456 transitions. [2022-11-25 18:00:31,338 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 153.5) internal successors, (2456), 16 states have internal predecessors, (2456), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:00:31,344 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 364.0) internal successors, (6188), 17 states have internal predecessors, (6188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:00:31,345 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 364.0) internal successors, (6188), 17 states have internal predecessors, (6188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:00:31,346 INFO L175 Difference]: Start difference. First operand has 60 places, 30 transitions, 197 flow. Second operand 16 states and 2456 transitions. [2022-11-25 18:00:31,346 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 75 places, 42 transitions, 316 flow [2022-11-25 18:00:31,347 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 67 places, 42 transitions, 282 flow, removed 4 selfloop flow, removed 8 redundant places. [2022-11-25 18:00:31,348 INFO L231 Difference]: Finished difference. Result has 67 places, 23 transitions, 145 flow [2022-11-25 18:00:31,349 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=364, PETRI_DIFFERENCE_MINUEND_FLOW=155, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=145, PETRI_PLACES=67, PETRI_TRANSITIONS=23} [2022-11-25 18:00:31,349 INFO L288 CegarLoopForPetriNet]: 30 programPoint places, 37 predicate places. [2022-11-25 18:00:31,349 INFO L495 AbstractCegarLoop]: Abstraction has has 67 places, 23 transitions, 145 flow [2022-11-25 18:00:31,350 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 152.25) internal successors, (1827), 12 states have internal predecessors, (1827), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:00:31,350 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 18:00:31,350 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:00:31,351 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-11-25 18:00:31,351 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-11-25 18:00:31,351 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:00:31,352 INFO L85 PathProgramCache]: Analyzing trace with hash -1415545504, now seen corresponding path program 5 times [2022-11-25 18:00:31,352 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:00:31,352 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [731687145] [2022-11-25 18:00:31,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:00:31,352 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:00:31,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:00:33,184 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:00:33,185 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:00:33,185 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [731687145] [2022-11-25 18:00:33,185 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [731687145] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:00:33,185 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:00:33,185 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-25 18:00:33,186 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1976559795] [2022-11-25 18:00:33,186 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:00:33,186 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-25 18:00:33,187 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:00:33,187 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-25 18:00:33,188 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2022-11-25 18:00:34,508 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 151 out of 364 [2022-11-25 18:00:34,510 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 67 places, 23 transitions, 145 flow. Second operand has 12 states, 12 states have (on average 152.25) internal successors, (1827), 12 states have internal predecessors, (1827), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:00:34,510 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 18:00:34,510 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 151 of 364 [2022-11-25 18:00:34,510 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 18:00:35,172 INFO L130 PetriNetUnfolder]: 7/30 cut-off events. [2022-11-25 18:00:35,172 INFO L131 PetriNetUnfolder]: For 44/44 co-relation queries the response was YES. [2022-11-25 18:00:35,173 INFO L83 FinitePrefix]: Finished finitePrefix Result has 143 conditions, 30 events. 7/30 cut-off events. For 44/44 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 24 event pairs, 1 based on Foata normal form. 2/32 useless extension candidates. Maximal degree in co-relation 129. Up to 11 conditions per place. [2022-11-25 18:00:35,173 INFO L137 encePairwiseOnDemand]: 355/364 looper letters, 13 selfloop transitions, 12 changer transitions 0/25 dead transitions. [2022-11-25 18:00:35,173 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 25 transitions, 193 flow [2022-11-25 18:00:35,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-25 18:00:35,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-11-25 18:00:35,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1685 transitions. [2022-11-25 18:00:35,177 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4208291708291708 [2022-11-25 18:00:35,177 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 1685 transitions. [2022-11-25 18:00:35,177 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 1685 transitions. [2022-11-25 18:00:35,178 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 18:00:35,178 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 1685 transitions. [2022-11-25 18:00:35,181 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 153.1818181818182) internal successors, (1685), 11 states have internal predecessors, (1685), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:00:35,186 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 364.0) internal successors, (4368), 12 states have internal predecessors, (4368), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:00:35,187 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 364.0) internal successors, (4368), 12 states have internal predecessors, (4368), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:00:35,187 INFO L175 Difference]: Start difference. First operand has 67 places, 23 transitions, 145 flow. Second operand 11 states and 1685 transitions. [2022-11-25 18:00:35,187 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 66 places, 25 transitions, 193 flow [2022-11-25 18:00:35,188 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 25 transitions, 128 flow, removed 2 selfloop flow, removed 20 redundant places. [2022-11-25 18:00:35,189 INFO L231 Difference]: Finished difference. Result has 46 places, 22 transitions, 95 flow [2022-11-25 18:00:35,189 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=364, PETRI_DIFFERENCE_MINUEND_FLOW=71, PETRI_DIFFERENCE_MINUEND_PLACES=36, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=10, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=95, PETRI_PLACES=46, PETRI_TRANSITIONS=22} [2022-11-25 18:00:35,189 INFO L288 CegarLoopForPetriNet]: 30 programPoint places, 16 predicate places. [2022-11-25 18:00:35,190 INFO L495 AbstractCegarLoop]: Abstraction has has 46 places, 22 transitions, 95 flow [2022-11-25 18:00:35,190 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 152.25) internal successors, (1827), 12 states have internal predecessors, (1827), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:00:35,190 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 18:00:35,191 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:00:35,191 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-11-25 18:00:35,191 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-11-25 18:00:35,192 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:00:35,192 INFO L85 PathProgramCache]: Analyzing trace with hash -1332197999, now seen corresponding path program 5 times [2022-11-25 18:00:35,192 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:00:35,192 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1083797375] [2022-11-25 18:00:35,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:00:35,193 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:00:35,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:00:36,432 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:00:36,432 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:00:36,432 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1083797375] [2022-11-25 18:00:36,432 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1083797375] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:00:36,432 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:00:36,432 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-25 18:00:36,432 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1393728460] [2022-11-25 18:00:36,433 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:00:36,433 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-25 18:00:36,433 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:00:36,433 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-25 18:00:36,434 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2022-11-25 18:00:37,855 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 149 out of 364 [2022-11-25 18:00:37,856 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 22 transitions, 95 flow. Second operand has 11 states, 11 states have (on average 150.36363636363637) internal successors, (1654), 11 states have internal predecessors, (1654), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:00:37,856 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 18:00:37,856 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 149 of 364 [2022-11-25 18:00:37,856 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 18:00:38,238 INFO L130 PetriNetUnfolder]: 6/27 cut-off events. [2022-11-25 18:00:38,239 INFO L131 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2022-11-25 18:00:38,239 INFO L83 FinitePrefix]: Finished finitePrefix Result has 94 conditions, 27 events. 6/27 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 20 event pairs, 1 based on Foata normal form. 2/28 useless extension candidates. Maximal degree in co-relation 86. Up to 12 conditions per place. [2022-11-25 18:00:38,239 INFO L137 encePairwiseOnDemand]: 356/364 looper letters, 0 selfloop transitions, 0 changer transitions 22/22 dead transitions. [2022-11-25 18:00:38,239 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 22 transitions, 134 flow [2022-11-25 18:00:38,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-25 18:00:38,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-11-25 18:00:38,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1360 transitions. [2022-11-25 18:00:38,243 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.41514041514041516 [2022-11-25 18:00:38,243 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1360 transitions. [2022-11-25 18:00:38,244 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1360 transitions. [2022-11-25 18:00:38,244 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 18:00:38,245 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1360 transitions. [2022-11-25 18:00:38,247 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 151.11111111111111) internal successors, (1360), 9 states have internal predecessors, (1360), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:00:38,251 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 364.0) internal successors, (3640), 10 states have internal predecessors, (3640), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:00:38,251 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 364.0) internal successors, (3640), 10 states have internal predecessors, (3640), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:00:38,252 INFO L175 Difference]: Start difference. First operand has 46 places, 22 transitions, 95 flow. Second operand 9 states and 1360 transitions. [2022-11-25 18:00:38,252 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 22 transitions, 134 flow [2022-11-25 18:00:38,252 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 38 places, 22 transitions, 110 flow, removed 0 selfloop flow, removed 10 redundant places. [2022-11-25 18:00:38,253 INFO L231 Difference]: Finished difference. Result has 38 places, 0 transitions, 0 flow [2022-11-25 18:00:38,253 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=364, PETRI_DIFFERENCE_MINUEND_FLOW=63, PETRI_DIFFERENCE_MINUEND_PLACES=30, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=21, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=0, PETRI_PLACES=38, PETRI_TRANSITIONS=0} [2022-11-25 18:00:38,254 INFO L288 CegarLoopForPetriNet]: 30 programPoint places, 8 predicate places. [2022-11-25 18:00:38,254 INFO L495 AbstractCegarLoop]: Abstraction has has 38 places, 0 transitions, 0 flow [2022-11-25 18:00:38,254 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 150.36363636363637) internal successors, (1654), 11 states have internal predecessors, (1654), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:00:38,258 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (7 of 8 remaining) [2022-11-25 18:00:38,258 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 8 remaining) [2022-11-25 18:00:38,259 INFO L805 garLoopResultBuilder]: Registering result SAFE for location my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 8 remaining) [2022-11-25 18:00:38,259 INFO L805 garLoopResultBuilder]: Registering result SAFE for location my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 8 remaining) [2022-11-25 18:00:38,259 INFO L805 garLoopResultBuilder]: Registering result SAFE for location my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 8 remaining) [2022-11-25 18:00:38,260 INFO L805 garLoopResultBuilder]: Registering result SAFE for location my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 8 remaining) [2022-11-25 18:00:38,260 INFO L805 garLoopResultBuilder]: Registering result SAFE for location my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 8 remaining) [2022-11-25 18:00:38,260 INFO L805 garLoopResultBuilder]: Registering result SAFE for location my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 8 remaining) [2022-11-25 18:00:38,261 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-11-25 18:00:38,261 INFO L445 BasicCegarLoop]: Path program histogram: [5, 5, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2022-11-25 18:00:38,268 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-25 18:00:38,268 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-25 18:00:38,272 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 06:00:38 BasicIcfg [2022-11-25 18:00:38,272 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-25 18:00:38,273 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-25 18:00:38,273 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-25 18:00:38,273 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-25 18:00:38,274 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:58:46" (3/4) ... [2022-11-25 18:00:38,277 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-25 18:00:38,286 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure my_callback [2022-11-25 18:00:38,292 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 26 nodes and edges [2022-11-25 18:00:38,292 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2022-11-25 18:00:38,293 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-25 18:00:38,293 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-25 18:00:38,339 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd6c3833-2c0c-4c86-9997-3a332ef19443/bin/uautomizer-ZsLfNo2U6R/witness.graphml [2022-11-25 18:00:38,339 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-25 18:00:38,340 INFO L158 Benchmark]: Toolchain (without parser) took 114395.61ms. Allocated memory was 130.0MB in the beginning and 539.0MB in the end (delta: 408.9MB). Free memory was 78.0MB in the beginning and 287.9MB in the end (delta: -209.9MB). Peak memory consumption was 200.4MB. Max. memory is 16.1GB. [2022-11-25 18:00:38,341 INFO L158 Benchmark]: CDTParser took 0.34ms. Allocated memory is still 130.0MB. Free memory was 92.5MB in the beginning and 92.4MB in the end (delta: 31.7kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 18:00:38,341 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1262.62ms. Allocated memory was 130.0MB in the beginning and 167.8MB in the end (delta: 37.7MB). Free memory was 77.7MB in the beginning and 94.2MB in the end (delta: -16.5MB). Peak memory consumption was 27.0MB. Max. memory is 16.1GB. [2022-11-25 18:00:38,341 INFO L158 Benchmark]: Boogie Procedure Inliner took 113.13ms. Allocated memory is still 167.8MB. Free memory was 94.2MB in the beginning and 91.2MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 18:00:38,342 INFO L158 Benchmark]: Boogie Preprocessor took 49.47ms. Allocated memory is still 167.8MB. Free memory was 91.2MB in the beginning and 88.0MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-25 18:00:38,342 INFO L158 Benchmark]: RCFGBuilder took 1040.56ms. Allocated memory is still 167.8MB. Free memory was 88.0MB in the beginning and 63.9MB in the end (delta: 24.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2022-11-25 18:00:38,343 INFO L158 Benchmark]: TraceAbstraction took 111854.66ms. Allocated memory was 167.8MB in the beginning and 539.0MB in the end (delta: 371.2MB). Free memory was 63.9MB in the beginning and 292.1MB in the end (delta: -228.3MB). Peak memory consumption was 144.0MB. Max. memory is 16.1GB. [2022-11-25 18:00:38,343 INFO L158 Benchmark]: Witness Printer took 66.50ms. Allocated memory is still 539.0MB. Free memory was 292.1MB in the beginning and 287.9MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-25 18:00:38,345 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34ms. Allocated memory is still 130.0MB. Free memory was 92.5MB in the beginning and 92.4MB in the end (delta: 31.7kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1262.62ms. Allocated memory was 130.0MB in the beginning and 167.8MB in the end (delta: 37.7MB). Free memory was 77.7MB in the beginning and 94.2MB in the end (delta: -16.5MB). Peak memory consumption was 27.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 113.13ms. Allocated memory is still 167.8MB. Free memory was 94.2MB in the beginning and 91.2MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 49.47ms. Allocated memory is still 167.8MB. Free memory was 91.2MB in the beginning and 88.0MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 1040.56ms. Allocated memory is still 167.8MB. Free memory was 88.0MB in the beginning and 63.9MB in the end (delta: 24.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * TraceAbstraction took 111854.66ms. Allocated memory was 167.8MB in the beginning and 539.0MB in the end (delta: 371.2MB). Free memory was 63.9MB in the beginning and 292.1MB in the end (delta: -228.3MB). Peak memory consumption was 144.0MB. Max. memory is 16.1GB. * Witness Printer took 66.50ms. Allocated memory is still 539.0MB. Free memory was 292.1MB in the beginning and 287.9MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 41.3s, 165 PlacesBefore, 30 PlacesAfterwards, 162 TransitionsBefore, 23 TransitionsAfterwards, 4216 CoEnabledTransitionPairs, 8 FixpointIterations, 65 TrivialSequentialCompositions, 81 ConcurrentSequentialCompositions, 9 TrivialYvCompositions, 9 ConcurrentYvCompositions, 4 ChoiceCompositions, 168 TotalNumberOfCompositions, 8532 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 4382, independent: 4127, independent conditional: 0, independent unconditional: 4127, dependent: 205, dependent conditional: 0, dependent unconditional: 205, unknown: 50, unknown conditional: 0, unknown unconditional: 50] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 2916, independent: 2854, independent conditional: 0, independent unconditional: 2854, dependent: 51, dependent conditional: 0, dependent unconditional: 51, unknown: 11, unknown conditional: 0, unknown unconditional: 11] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 2916, independent: 2813, independent conditional: 0, independent unconditional: 2813, dependent: 103, dependent conditional: 0, dependent unconditional: 103, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 103, independent: 41, independent conditional: 0, independent unconditional: 41, dependent: 51, dependent conditional: 0, dependent unconditional: 51, unknown: 11, unknown conditional: 0, unknown unconditional: 11] , SemanticIndependenceRelation.Query Time [ms]: [ total: 23371, independent: 95, independent conditional: 0, independent unconditional: 95, dependent: 413, dependent conditional: 0, dependent unconditional: 413, unknown: 22863, unknown conditional: 0, unknown unconditional: 22863] ], Cache Queries: [ total: 4382, independent: 1273, independent conditional: 0, independent unconditional: 1273, dependent: 154, dependent conditional: 0, dependent unconditional: 154, unknown: 2955, unknown conditional: 0, unknown unconditional: 2955] , Statistics on independence cache: Total cache size (in pairs): 87, Positive cache size: 69, Positive conditional cache size: 0, Positive unconditional cache size: 69, Negative cache size: 18, Negative conditional cache size: 0, Negative unconditional cache size: 18, Unknown cache size: 4, Unknown conditional cache size: 0, Unknown unconditional cache size: 4 - PositiveResult [Line: 1712]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1712]: 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 4 procedures, 208 locations, 8 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: 111.6s, OverallIterations: 25, TraceHistogramMax: 1, PathProgramHistogramMax: 5, EmptinessCheckTime: 0.0s, AutomataDifference: 38.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 41.6s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 6875 SdHoareTripleChecker+Valid, 29.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 5478 mSDsluCounter, 4063 SdHoareTripleChecker+Invalid, 26.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3918 mSDsCounter, 831 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 20627 IncrementalHoareTripleChecker+Invalid, 21458 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 831 mSolverCounterUnsat, 145 mSDtfsCounter, 20627 mSolverCounterSat, 0.2s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 330 GetRequests, 28 SyntacticMatches, 2 SemanticMatches, 300 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 742 ImplicationChecksByTransitivity, 10.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=645occurred in iteration=19, InterpolantAutomatonStates: 244, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.8s SatisfiabilityAnalysisTime, 29.5s InterpolantComputationTime, 293 NumberOfCodeBlocks, 293 NumberOfCodeBlocksAsserted, 25 NumberOfCheckSat, 268 ConstructedInterpolants, 0 QuantifiedInterpolants, 5406 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 25 InterpolantComputations, 25 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 2 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-11-25 18:00:38,407 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd6c3833-2c0c-4c86-9997-3a332ef19443/bin/uautomizer-ZsLfNo2U6R/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