./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/ldv-races/race-2_1-container_of.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version b5237d83 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7563328-2ae3-4ac7-bd5d-91a85ea19ea3/bin/uautomizer-vX5HgA9Q3a/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7563328-2ae3-4ac7-bd5d-91a85ea19ea3/bin/uautomizer-vX5HgA9Q3a/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7563328-2ae3-4ac7-bd5d-91a85ea19ea3/bin/uautomizer-vX5HgA9Q3a/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7563328-2ae3-4ac7-bd5d-91a85ea19ea3/bin/uautomizer-vX5HgA9Q3a/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-races/race-2_1-container_of.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7563328-2ae3-4ac7-bd5d-91a85ea19ea3/bin/uautomizer-vX5HgA9Q3a/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7563328-2ae3-4ac7-bd5d-91a85ea19ea3/bin/uautomizer-vX5HgA9Q3a --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash fddded73cca9ade55587111b2e2c843e75dd81397929514bda88fadfc663c7db --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-b5237d8 [2022-11-21 14:01:11,767 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-21 14:01:11,769 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-21 14:01:11,790 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-21 14:01:11,790 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-21 14:01:11,791 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-21 14:01:11,793 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-21 14:01:11,795 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-21 14:01:11,797 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-21 14:01:11,798 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-21 14:01:11,799 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-21 14:01:11,800 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-21 14:01:11,801 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-21 14:01:11,802 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-21 14:01:11,803 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-21 14:01:11,804 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-21 14:01:11,805 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-21 14:01:11,806 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-21 14:01:11,808 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-21 14:01:11,810 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-21 14:01:11,812 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-21 14:01:11,813 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-21 14:01:11,814 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-21 14:01:11,816 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-21 14:01:11,819 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-21 14:01:11,820 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-21 14:01:11,820 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-21 14:01:11,821 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-21 14:01:11,822 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-21 14:01:11,823 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-21 14:01:11,823 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-21 14:01:11,824 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-21 14:01:11,825 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-21 14:01:11,826 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-21 14:01:11,827 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-21 14:01:11,828 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-21 14:01:11,828 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-21 14:01:11,829 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-21 14:01:11,829 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-21 14:01:11,830 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-21 14:01:11,831 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-21 14:01:11,832 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7563328-2ae3-4ac7-bd5d-91a85ea19ea3/bin/uautomizer-vX5HgA9Q3a/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-11-21 14:01:11,854 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-21 14:01:11,855 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-21 14:01:11,855 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-21 14:01:11,855 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-21 14:01:11,856 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-21 14:01:11,856 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-21 14:01:11,857 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-21 14:01:11,857 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-21 14:01:11,857 INFO L138 SettingsManager]: * Use SBE=true [2022-11-21 14:01:11,858 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-21 14:01:11,858 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-21 14:01:11,858 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-21 14:01:11,858 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-21 14:01:11,859 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-21 14:01:11,859 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-21 14:01:11,859 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-21 14:01:11,859 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-21 14:01:11,860 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-21 14:01:11,860 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-21 14:01:11,860 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-21 14:01:11,860 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-21 14:01:11,860 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-21 14:01:11,861 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-21 14:01:11,861 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-21 14:01:11,861 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-21 14:01:11,861 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-21 14:01:11,862 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 14:01:11,862 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-21 14:01:11,862 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-21 14:01:11,862 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-21 14:01:11,863 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-21 14:01:11,863 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-21 14:01:11,863 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-21 14:01:11,863 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-21 14:01:11,863 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-21 14:01:11,864 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7563328-2ae3-4ac7-bd5d-91a85ea19ea3/bin/uautomizer-vX5HgA9Q3a/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7563328-2ae3-4ac7-bd5d-91a85ea19ea3/bin/uautomizer-vX5HgA9Q3a Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fddded73cca9ade55587111b2e2c843e75dd81397929514bda88fadfc663c7db [2022-11-21 14:01:12,148 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-21 14:01:12,175 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-21 14:01:12,178 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-21 14:01:12,180 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-21 14:01:12,180 INFO L275 PluginConnector]: CDTParser initialized [2022-11-21 14:01:12,182 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7563328-2ae3-4ac7-bd5d-91a85ea19ea3/bin/uautomizer-vX5HgA9Q3a/../../sv-benchmarks/c/ldv-races/race-2_1-container_of.i [2022-11-21 14:01:15,208 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-21 14:01:15,595 INFO L351 CDTParser]: Found 1 translation units. [2022-11-21 14:01:15,596 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7563328-2ae3-4ac7-bd5d-91a85ea19ea3/sv-benchmarks/c/ldv-races/race-2_1-container_of.i [2022-11-21 14:01:15,618 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7563328-2ae3-4ac7-bd5d-91a85ea19ea3/bin/uautomizer-vX5HgA9Q3a/data/6f1c5ccdd/cf76a15405a74bbea79de633cec33cbf/FLAGe0ca9e575 [2022-11-21 14:01:15,633 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7563328-2ae3-4ac7-bd5d-91a85ea19ea3/bin/uautomizer-vX5HgA9Q3a/data/6f1c5ccdd/cf76a15405a74bbea79de633cec33cbf [2022-11-21 14:01:15,636 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-21 14:01:15,638 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-21 14:01:15,639 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-21 14:01:15,639 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-21 14:01:15,643 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-21 14:01:15,644 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 02:01:15" (1/1) ... [2022-11-21 14:01:15,645 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6035314b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 02:01:15, skipping insertion in model container [2022-11-21 14:01:15,645 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 02:01:15" (1/1) ... [2022-11-21 14:01:15,653 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-21 14:01:15,703 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-21 14:01:16,571 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_f7563328-2ae3-4ac7-bd5d-91a85ea19ea3/sv-benchmarks/c/ldv-races/race-2_1-container_of.i[76077,76090] [2022-11-21 14:01:16,610 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 14:01:16,623 INFO L203 MainTranslator]: Completed pre-run [2022-11-21 14:01:16,679 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_f7563328-2ae3-4ac7-bd5d-91a85ea19ea3/sv-benchmarks/c/ldv-races/race-2_1-container_of.i[76077,76090] [2022-11-21 14:01:16,695 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 14:01:16,820 INFO L208 MainTranslator]: Completed translation [2022-11-21 14:01:16,821 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 02:01:16 WrapperNode [2022-11-21 14:01:16,821 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-21 14:01:16,823 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-21 14:01:16,823 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-21 14:01:16,823 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-21 14:01:16,831 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 02:01:16" (1/1) ... [2022-11-21 14:01:16,881 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 02:01:16" (1/1) ... [2022-11-21 14:01:16,920 INFO L138 Inliner]: procedures = 482, calls = 46, calls flagged for inlining = 12, calls inlined = 12, statements flattened = 133 [2022-11-21 14:01:16,922 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-21 14:01:16,922 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-21 14:01:16,923 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-21 14:01:16,923 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-21 14:01:16,933 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 02:01:16" (1/1) ... [2022-11-21 14:01:16,934 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 02:01:16" (1/1) ... [2022-11-21 14:01:16,944 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 02:01:16" (1/1) ... [2022-11-21 14:01:16,944 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 02:01:16" (1/1) ... [2022-11-21 14:01:16,955 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 02:01:16" (1/1) ... [2022-11-21 14:01:16,958 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 02:01:16" (1/1) ... [2022-11-21 14:01:16,961 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 02:01:16" (1/1) ... [2022-11-21 14:01:16,964 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 02:01:16" (1/1) ... [2022-11-21 14:01:16,969 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-21 14:01:16,970 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-21 14:01:16,970 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-21 14:01:16,970 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-21 14:01:16,974 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 02:01:16" (1/1) ... [2022-11-21 14:01:16,989 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 14:01:17,002 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7563328-2ae3-4ac7-bd5d-91a85ea19ea3/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 14:01:17,036 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7563328-2ae3-4ac7-bd5d-91a85ea19ea3/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-21 14:01:17,061 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7563328-2ae3-4ac7-bd5d-91a85ea19ea3/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-21 14:01:17,078 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-21 14:01:17,078 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-21 14:01:17,078 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-21 14:01:17,079 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-21 14:01:17,079 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-21 14:01:17,079 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-21 14:01:17,079 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-21 14:01:17,079 INFO L130 BoogieDeclarations]: Found specification of procedure my_callback [2022-11-21 14:01:17,079 INFO L138 BoogieDeclarations]: Found implementation of procedure my_callback [2022-11-21 14:01:17,079 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-21 14:01:17,080 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-21 14:01:17,080 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-21 14:01:17,081 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-21 14:01:17,381 INFO L235 CfgBuilder]: Building ICFG [2022-11-21 14:01:17,383 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-21 14:01:17,732 INFO L276 CfgBuilder]: Performing block encoding [2022-11-21 14:01:17,741 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-21 14:01:17,741 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-21 14:01:17,744 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 02:01:17 BoogieIcfgContainer [2022-11-21 14:01:17,744 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-21 14:01:17,746 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-21 14:01:17,747 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-21 14:01:17,750 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-21 14:01:17,750 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 02:01:15" (1/3) ... [2022-11-21 14:01:17,751 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45076e87 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 02:01:17, skipping insertion in model container [2022-11-21 14:01:17,751 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 02:01:16" (2/3) ... [2022-11-21 14:01:17,752 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45076e87 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 02:01:17, skipping insertion in model container [2022-11-21 14:01:17,752 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 02:01:17" (3/3) ... [2022-11-21 14:01:17,753 INFO L112 eAbstractionObserver]: Analyzing ICFG race-2_1-container_of.i [2022-11-21 14:01:17,762 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-21 14:01:17,774 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-21 14:01:17,774 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-11-21 14:01:17,774 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-21 14:01:17,849 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-11-21 14:01:17,890 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 195 places, 197 transitions, 410 flow [2022-11-21 14:01:17,992 INFO L130 PetriNetUnfolder]: 10/240 cut-off events. [2022-11-21 14:01:17,992 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-11-21 14:01:18,004 INFO L83 FinitePrefix]: Finished finitePrefix Result has 249 conditions, 240 events. 10/240 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 417 event pairs, 0 based on Foata normal form. 0/224 useless extension candidates. Maximal degree in co-relation 141. Up to 4 conditions per place. [2022-11-21 14:01:18,004 INFO L82 GeneralOperation]: Start removeDead. Operand has 195 places, 197 transitions, 410 flow [2022-11-21 14:01:18,009 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 166 places, 163 transitions, 335 flow [2022-11-21 14:01:18,032 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-21 14:01:18,039 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;@19be4765, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-21 14:01:18,039 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2022-11-21 14:01:18,060 INFO L130 PetriNetUnfolder]: 2/91 cut-off events. [2022-11-21 14:01:18,060 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-21 14:01:18,061 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 14:01:18,061 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 14:01:18,062 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-11-21 14:01:18,067 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 14:01:18,068 INFO L85 PathProgramCache]: Analyzing trace with hash 1371300828, now seen corresponding path program 1 times [2022-11-21 14:01:18,078 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 14:01:18,078 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [166551750] [2022-11-21 14:01:18,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 14:01:18,079 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 14:01:18,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 14:01:21,062 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 14:01:21,063 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 14:01:21,063 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [166551750] [2022-11-21 14:01:21,064 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [166551750] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 14:01:21,064 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 14:01:21,064 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-11-21 14:01:21,066 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1285345891] [2022-11-21 14:01:21,071 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 14:01:21,082 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-21 14:01:21,082 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 14:01:21,128 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-21 14:01:21,130 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=203, Unknown=0, NotChecked=0, Total=240 [2022-11-21 14:01:21,140 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 133 out of 197 [2022-11-21 14:01:21,149 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 166 places, 163 transitions, 335 flow. Second operand has 16 states, 16 states have (on average 134.6875) internal successors, (2155), 16 states have internal predecessors, (2155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 14:01:21,149 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 14:01:21,150 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 133 of 197 [2022-11-21 14:01:21,151 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 14:01:23,390 INFO L130 PetriNetUnfolder]: 1050/4238 cut-off events. [2022-11-21 14:01:23,390 INFO L131 PetriNetUnfolder]: For 22/22 co-relation queries the response was YES. [2022-11-21 14:01:23,407 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6041 conditions, 4238 events. 1050/4238 cut-off events. For 22/22 co-relation queries the response was YES. Maximal size of possible extension queue 207. Compared 41324 event pairs, 649 based on Foata normal form. 162/3933 useless extension candidates. Maximal degree in co-relation 5899. Up to 1236 conditions per place. [2022-11-21 14:01:23,430 INFO L137 encePairwiseOnDemand]: 174/197 looper letters, 80 selfloop transitions, 25 changer transitions 4/214 dead transitions. [2022-11-21 14:01:23,430 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 179 places, 214 transitions, 654 flow [2022-11-21 14:01:23,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-11-21 14:01:23,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2022-11-21 14:01:23,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2513 transitions. [2022-11-21 14:01:23,458 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7086858432036097 [2022-11-21 14:01:23,459 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 2513 transitions. [2022-11-21 14:01:23,460 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 2513 transitions. [2022-11-21 14:01:23,465 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 14:01:23,468 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 2513 transitions. [2022-11-21 14:01:23,479 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 139.61111111111111) internal successors, (2513), 18 states have internal predecessors, (2513), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 14:01:23,494 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 197.0) internal successors, (3743), 19 states have internal predecessors, (3743), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 14:01:23,497 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 197.0) internal successors, (3743), 19 states have internal predecessors, (3743), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 14:01:23,499 INFO L175 Difference]: Start difference. First operand has 166 places, 163 transitions, 335 flow. Second operand 18 states and 2513 transitions. [2022-11-21 14:01:23,500 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 179 places, 214 transitions, 654 flow [2022-11-21 14:01:23,505 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 176 places, 214 transitions, 648 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-11-21 14:01:23,511 INFO L231 Difference]: Finished difference. Result has 185 places, 171 transitions, 457 flow [2022-11-21 14:01:23,513 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=197, PETRI_DIFFERENCE_MINUEND_FLOW=314, PETRI_DIFFERENCE_MINUEND_PLACES=159, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=155, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=138, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=457, PETRI_PLACES=185, PETRI_TRANSITIONS=171} [2022-11-21 14:01:23,517 INFO L288 CegarLoopForPetriNet]: 166 programPoint places, 19 predicate places. [2022-11-21 14:01:23,518 INFO L495 AbstractCegarLoop]: Abstraction has has 185 places, 171 transitions, 457 flow [2022-11-21 14:01:23,519 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 134.6875) internal successors, (2155), 16 states have internal predecessors, (2155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 14:01:23,520 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 14:01:23,520 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 14:01:23,520 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-21 14:01:23,521 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-11-21 14:01:23,521 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 14:01:23,522 INFO L85 PathProgramCache]: Analyzing trace with hash -1550483823, now seen corresponding path program 1 times [2022-11-21 14:01:23,522 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 14:01:23,522 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [590807075] [2022-11-21 14:01:23,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 14:01:23,523 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 14:01:23,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 14:01:25,481 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 14:01:25,481 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 14:01:25,482 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [590807075] [2022-11-21 14:01:25,482 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [590807075] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 14:01:25,482 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 14:01:25,482 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2022-11-21 14:01:25,482 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1062887162] [2022-11-21 14:01:25,483 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 14:01:25,484 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-11-21 14:01:25,484 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 14:01:25,485 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-11-21 14:01:25,485 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=404, Unknown=0, NotChecked=0, Total=462 [2022-11-21 14:01:25,492 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 94 out of 197 [2022-11-21 14:01:25,497 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 185 places, 171 transitions, 457 flow. Second operand has 22 states, 22 states have (on average 95.9090909090909) internal successors, (2110), 22 states have internal predecessors, (2110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 14:01:25,497 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 14:01:25,498 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 94 of 197 [2022-11-21 14:01:25,503 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 14:01:28,705 INFO L130 PetriNetUnfolder]: 3176/6951 cut-off events. [2022-11-21 14:01:28,705 INFO L131 PetriNetUnfolder]: For 2854/2863 co-relation queries the response was YES. [2022-11-21 14:01:28,728 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13963 conditions, 6951 events. 3176/6951 cut-off events. For 2854/2863 co-relation queries the response was YES. Maximal size of possible extension queue 350. Compared 58664 event pairs, 1367 based on Foata normal form. 168/6672 useless extension candidates. Maximal degree in co-relation 13222. Up to 3261 conditions per place. [2022-11-21 14:01:28,759 INFO L137 encePairwiseOnDemand]: 174/197 looper letters, 150 selfloop transitions, 45 changer transitions 2/276 dead transitions. [2022-11-21 14:01:28,759 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 203 places, 276 transitions, 1135 flow [2022-11-21 14:01:28,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-11-21 14:01:28,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2022-11-21 14:01:28,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 2167 transitions. [2022-11-21 14:01:28,770 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5238095238095238 [2022-11-21 14:01:28,770 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 2167 transitions. [2022-11-21 14:01:28,770 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 2167 transitions. [2022-11-21 14:01:28,772 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 14:01:28,772 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 2167 transitions. [2022-11-21 14:01:28,777 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 22 states, 21 states have (on average 103.19047619047619) internal successors, (2167), 21 states have internal predecessors, (2167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 14:01:28,787 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 22 states, 22 states have (on average 197.0) internal successors, (4334), 22 states have internal predecessors, (4334), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 14:01:28,789 INFO L81 ComplementDD]: Finished complementDD. Result has 22 states, 22 states have (on average 197.0) internal successors, (4334), 22 states have internal predecessors, (4334), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 14:01:28,789 INFO L175 Difference]: Start difference. First operand has 185 places, 171 transitions, 457 flow. Second operand 21 states and 2167 transitions. [2022-11-21 14:01:28,790 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 203 places, 276 transitions, 1135 flow [2022-11-21 14:01:28,838 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 197 places, 276 transitions, 1124 flow, removed 0 selfloop flow, removed 6 redundant places. [2022-11-21 14:01:28,843 INFO L231 Difference]: Finished difference. Result has 206 places, 199 transitions, 711 flow [2022-11-21 14:01:28,844 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=197, PETRI_DIFFERENCE_MINUEND_FLOW=446, PETRI_DIFFERENCE_MINUEND_PLACES=177, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=171, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=23, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=140, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=711, PETRI_PLACES=206, PETRI_TRANSITIONS=199} [2022-11-21 14:01:28,845 INFO L288 CegarLoopForPetriNet]: 166 programPoint places, 40 predicate places. [2022-11-21 14:01:28,845 INFO L495 AbstractCegarLoop]: Abstraction has has 206 places, 199 transitions, 711 flow [2022-11-21 14:01:28,846 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 95.9090909090909) internal successors, (2110), 22 states have internal predecessors, (2110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 14:01:28,846 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 14:01:28,847 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 14:01:28,848 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-21 14:01:28,848 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-11-21 14:01:28,849 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 14:01:28,849 INFO L85 PathProgramCache]: Analyzing trace with hash 1996303698, now seen corresponding path program 1 times [2022-11-21 14:01:28,850 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 14:01:28,851 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1513059901] [2022-11-21 14:01:28,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 14:01:28,852 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 14:01:28,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 14:01:30,754 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 14:01:30,754 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 14:01:30,755 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1513059901] [2022-11-21 14:01:30,755 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1513059901] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 14:01:30,755 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 14:01:30,755 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2022-11-21 14:01:30,755 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1458726780] [2022-11-21 14:01:30,756 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 14:01:30,756 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-11-21 14:01:30,756 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 14:01:30,757 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-11-21 14:01:30,757 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=402, Unknown=0, NotChecked=0, Total=462 [2022-11-21 14:01:30,759 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 94 out of 197 [2022-11-21 14:01:30,762 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 206 places, 199 transitions, 711 flow. Second operand has 22 states, 22 states have (on average 95.95454545454545) internal successors, (2111), 22 states have internal predecessors, (2111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 14:01:30,762 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 14:01:30,762 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 94 of 197 [2022-11-21 14:01:30,762 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 14:01:35,060 INFO L130 PetriNetUnfolder]: 6088/13999 cut-off events. [2022-11-21 14:01:35,060 INFO L131 PetriNetUnfolder]: For 9246/11313 co-relation queries the response was YES. [2022-11-21 14:01:35,162 INFO L83 FinitePrefix]: Finished finitePrefix Result has 31117 conditions, 13999 events. 6088/13999 cut-off events. For 9246/11313 co-relation queries the response was YES. Maximal size of possible extension queue 471. Compared 134094 event pairs, 2445 based on Foata normal form. 57/12917 useless extension candidates. Maximal degree in co-relation 29206. Up to 8450 conditions per place. [2022-11-21 14:01:35,324 INFO L137 encePairwiseOnDemand]: 174/197 looper letters, 154 selfloop transitions, 63 changer transitions 5/313 dead transitions. [2022-11-21 14:01:35,325 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 226 places, 313 transitions, 1530 flow [2022-11-21 14:01:35,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-11-21 14:01:35,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2022-11-21 14:01:35,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 2157 transitions. [2022-11-21 14:01:35,333 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5213923132704859 [2022-11-21 14:01:35,333 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 2157 transitions. [2022-11-21 14:01:35,333 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 2157 transitions. [2022-11-21 14:01:35,335 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 14:01:35,335 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 2157 transitions. [2022-11-21 14:01:35,342 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 22 states, 21 states have (on average 102.71428571428571) internal successors, (2157), 21 states have internal predecessors, (2157), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 14:01:35,350 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 22 states, 22 states have (on average 197.0) internal successors, (4334), 22 states have internal predecessors, (4334), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 14:01:35,352 INFO L81 ComplementDD]: Finished complementDD. Result has 22 states, 22 states have (on average 197.0) internal successors, (4334), 22 states have internal predecessors, (4334), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 14:01:35,353 INFO L175 Difference]: Start difference. First operand has 206 places, 199 transitions, 711 flow. Second operand 21 states and 2157 transitions. [2022-11-21 14:01:35,353 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 226 places, 313 transitions, 1530 flow [2022-11-21 14:01:35,436 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 217 places, 313 transitions, 1469 flow, removed 22 selfloop flow, removed 9 redundant places. [2022-11-21 14:01:35,443 INFO L231 Difference]: Finished difference. Result has 226 places, 238 transitions, 1073 flow [2022-11-21 14:01:35,443 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=197, PETRI_DIFFERENCE_MINUEND_FLOW=672, PETRI_DIFFERENCE_MINUEND_PLACES=197, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=199, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=24, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=165, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=1073, PETRI_PLACES=226, PETRI_TRANSITIONS=238} [2022-11-21 14:01:35,444 INFO L288 CegarLoopForPetriNet]: 166 programPoint places, 60 predicate places. [2022-11-21 14:01:35,444 INFO L495 AbstractCegarLoop]: Abstraction has has 226 places, 238 transitions, 1073 flow [2022-11-21 14:01:35,446 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 95.95454545454545) internal successors, (2111), 22 states have internal predecessors, (2111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 14:01:35,446 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 14:01:35,446 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 14:01:35,446 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-21 14:01:35,447 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-11-21 14:01:35,448 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 14:01:35,448 INFO L85 PathProgramCache]: Analyzing trace with hash 927396420, now seen corresponding path program 1 times [2022-11-21 14:01:35,448 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 14:01:35,448 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [106222817] [2022-11-21 14:01:35,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 14:01:35,449 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 14:01:35,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 14:01:37,198 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 14:01:37,199 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 14:01:37,199 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [106222817] [2022-11-21 14:01:37,199 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [106222817] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 14:01:37,199 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 14:01:37,200 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2022-11-21 14:01:37,200 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2035544834] [2022-11-21 14:01:37,200 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 14:01:37,201 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-11-21 14:01:37,201 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 14:01:37,202 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-11-21 14:01:37,202 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=400, Unknown=0, NotChecked=0, Total=462 [2022-11-21 14:01:37,205 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 101 out of 197 [2022-11-21 14:01:37,207 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 226 places, 238 transitions, 1073 flow. Second operand has 22 states, 22 states have (on average 102.95454545454545) internal successors, (2265), 22 states have internal predecessors, (2265), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 14:01:37,208 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 14:01:37,208 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 101 of 197 [2022-11-21 14:01:37,208 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 14:01:44,626 INFO L130 PetriNetUnfolder]: 6738/14897 cut-off events. [2022-11-21 14:01:44,626 INFO L131 PetriNetUnfolder]: For 12838/15870 co-relation queries the response was YES. [2022-11-21 14:01:44,719 INFO L83 FinitePrefix]: Finished finitePrefix Result has 35533 conditions, 14897 events. 6738/14897 cut-off events. For 12838/15870 co-relation queries the response was YES. Maximal size of possible extension queue 488. Compared 137853 event pairs, 1902 based on Foata normal form. 189/14329 useless extension candidates. Maximal degree in co-relation 33731. Up to 3515 conditions per place. [2022-11-21 14:01:44,775 INFO L137 encePairwiseOnDemand]: 170/197 looper letters, 512 selfloop transitions, 87 changer transitions 4/694 dead transitions. [2022-11-21 14:01:44,775 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 259 places, 694 transitions, 4184 flow [2022-11-21 14:01:44,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-11-21 14:01:44,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2022-11-21 14:01:44,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 3862 transitions. [2022-11-21 14:01:44,786 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5765900268736937 [2022-11-21 14:01:44,786 INFO L72 ComplementDD]: Start complementDD. Operand 34 states and 3862 transitions. [2022-11-21 14:01:44,786 INFO L73 IsDeterministic]: Start isDeterministic. Operand 34 states and 3862 transitions. [2022-11-21 14:01:44,789 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 14:01:44,789 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 34 states and 3862 transitions. [2022-11-21 14:01:44,799 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 35 states, 34 states have (on average 113.58823529411765) internal successors, (3862), 34 states have internal predecessors, (3862), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 14:01:44,812 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 35 states, 35 states have (on average 197.0) internal successors, (6895), 35 states have internal predecessors, (6895), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 14:01:44,816 INFO L81 ComplementDD]: Finished complementDD. Result has 35 states, 35 states have (on average 197.0) internal successors, (6895), 35 states have internal predecessors, (6895), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 14:01:44,817 INFO L175 Difference]: Start difference. First operand has 226 places, 238 transitions, 1073 flow. Second operand 34 states and 3862 transitions. [2022-11-21 14:01:44,817 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 259 places, 694 transitions, 4184 flow [2022-11-21 14:01:44,892 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 251 places, 694 transitions, 4115 flow, removed 27 selfloop flow, removed 8 redundant places. [2022-11-21 14:01:44,900 INFO L231 Difference]: Finished difference. Result has 263 places, 294 transitions, 1665 flow [2022-11-21 14:01:44,902 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=197, PETRI_DIFFERENCE_MINUEND_FLOW=1034, PETRI_DIFFERENCE_MINUEND_PLACES=218, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=238, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=31, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=196, PETRI_DIFFERENCE_SUBTRAHEND_STATES=34, PETRI_FLOW=1665, PETRI_PLACES=263, PETRI_TRANSITIONS=294} [2022-11-21 14:01:44,903 INFO L288 CegarLoopForPetriNet]: 166 programPoint places, 97 predicate places. [2022-11-21 14:01:44,904 INFO L495 AbstractCegarLoop]: Abstraction has has 263 places, 294 transitions, 1665 flow [2022-11-21 14:01:44,906 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 102.95454545454545) internal successors, (2265), 22 states have internal predecessors, (2265), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 14:01:44,906 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 14:01:44,907 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 14:01:44,907 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-21 14:01:44,907 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-11-21 14:01:44,908 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 14:01:44,908 INFO L85 PathProgramCache]: Analyzing trace with hash 206731432, now seen corresponding path program 1 times [2022-11-21 14:01:44,908 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 14:01:44,909 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1468273373] [2022-11-21 14:01:44,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 14:01:44,910 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 14:01:44,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 14:01:46,360 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 14:01:46,360 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 14:01:46,360 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1468273373] [2022-11-21 14:01:46,360 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1468273373] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 14:01:46,360 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 14:01:46,361 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2022-11-21 14:01:46,361 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1947089383] [2022-11-21 14:01:46,361 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 14:01:46,361 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-11-21 14:01:46,362 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 14:01:46,362 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-11-21 14:01:46,362 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=401, Unknown=0, NotChecked=0, Total=462 [2022-11-21 14:01:46,365 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 101 out of 197 [2022-11-21 14:01:46,367 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 263 places, 294 transitions, 1665 flow. Second operand has 22 states, 22 states have (on average 102.95454545454545) internal successors, (2265), 22 states have internal predecessors, (2265), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 14:01:46,367 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 14:01:46,367 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 101 of 197 [2022-11-21 14:01:46,368 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 14:01:55,294 INFO L130 PetriNetUnfolder]: 9923/22569 cut-off events. [2022-11-21 14:01:55,295 INFO L131 PetriNetUnfolder]: For 37032/43837 co-relation queries the response was YES. [2022-11-21 14:01:55,484 INFO L83 FinitePrefix]: Finished finitePrefix Result has 62745 conditions, 22569 events. 9923/22569 cut-off events. For 37032/43837 co-relation queries the response was YES. Maximal size of possible extension queue 774. Compared 235230 event pairs, 3104 based on Foata normal form. 400/21812 useless extension candidates. Maximal degree in co-relation 62347. Up to 5226 conditions per place. [2022-11-21 14:01:55,594 INFO L137 encePairwiseOnDemand]: 170/197 looper letters, 557 selfloop transitions, 115 changer transitions 4/767 dead transitions. [2022-11-21 14:01:55,594 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 296 places, 767 transitions, 5325 flow [2022-11-21 14:01:55,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-11-21 14:01:55,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2022-11-21 14:01:55,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 3888 transitions. [2022-11-21 14:01:55,604 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5804717826216781 [2022-11-21 14:01:55,604 INFO L72 ComplementDD]: Start complementDD. Operand 34 states and 3888 transitions. [2022-11-21 14:01:55,605 INFO L73 IsDeterministic]: Start isDeterministic. Operand 34 states and 3888 transitions. [2022-11-21 14:01:55,607 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 14:01:55,608 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 34 states and 3888 transitions. [2022-11-21 14:01:55,621 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 35 states, 34 states have (on average 114.3529411764706) internal successors, (3888), 34 states have internal predecessors, (3888), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 14:01:55,649 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 35 states, 35 states have (on average 197.0) internal successors, (6895), 35 states have internal predecessors, (6895), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 14:01:55,652 INFO L81 ComplementDD]: Finished complementDD. Result has 35 states, 35 states have (on average 197.0) internal successors, (6895), 35 states have internal predecessors, (6895), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 14:01:55,652 INFO L175 Difference]: Start difference. First operand has 263 places, 294 transitions, 1665 flow. Second operand 34 states and 3888 transitions. [2022-11-21 14:01:55,653 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 296 places, 767 transitions, 5325 flow [2022-11-21 14:01:55,990 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 282 places, 767 transitions, 5263 flow, removed 8 selfloop flow, removed 14 redundant places. [2022-11-21 14:01:56,003 INFO L231 Difference]: Finished difference. Result has 295 places, 337 transitions, 2442 flow [2022-11-21 14:01:56,004 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=197, PETRI_DIFFERENCE_MINUEND_FLOW=1603, PETRI_DIFFERENCE_MINUEND_PLACES=249, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=294, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=72, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=205, PETRI_DIFFERENCE_SUBTRAHEND_STATES=34, PETRI_FLOW=2442, PETRI_PLACES=295, PETRI_TRANSITIONS=337} [2022-11-21 14:01:56,007 INFO L288 CegarLoopForPetriNet]: 166 programPoint places, 129 predicate places. [2022-11-21 14:01:56,008 INFO L495 AbstractCegarLoop]: Abstraction has has 295 places, 337 transitions, 2442 flow [2022-11-21 14:01:56,009 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 102.95454545454545) internal successors, (2265), 22 states have internal predecessors, (2265), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 14:01:56,009 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 14:01:56,009 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 14:01:56,009 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-21 14:01:56,010 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-11-21 14:01:56,011 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 14:01:56,011 INFO L85 PathProgramCache]: Analyzing trace with hash 465082248, now seen corresponding path program 2 times [2022-11-21 14:01:56,012 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 14:01:56,013 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [703413154] [2022-11-21 14:01:56,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 14:01:56,013 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 14:01:56,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 14:01:57,645 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 14:01:57,645 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 14:01:57,645 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [703413154] [2022-11-21 14:01:57,645 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [703413154] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 14:01:57,646 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 14:01:57,646 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2022-11-21 14:01:57,646 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [609854850] [2022-11-21 14:01:57,646 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 14:01:57,646 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-11-21 14:01:57,647 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 14:01:57,647 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-11-21 14:01:57,647 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=442, Unknown=0, NotChecked=0, Total=506 [2022-11-21 14:01:57,650 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 101 out of 197 [2022-11-21 14:01:57,652 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 295 places, 337 transitions, 2442 flow. Second operand has 23 states, 23 states have (on average 102.8695652173913) internal successors, (2366), 23 states have internal predecessors, (2366), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 14:01:57,652 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 14:01:57,652 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 101 of 197 [2022-11-21 14:01:57,652 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 14:02:07,223 INFO L130 PetriNetUnfolder]: 10803/24438 cut-off events. [2022-11-21 14:02:07,223 INFO L131 PetriNetUnfolder]: For 79390/87793 co-relation queries the response was YES. [2022-11-21 14:02:07,463 INFO L83 FinitePrefix]: Finished finitePrefix Result has 77921 conditions, 24438 events. 10803/24438 cut-off events. For 79390/87793 co-relation queries the response was YES. Maximal size of possible extension queue 832. Compared 255494 event pairs, 4088 based on Foata normal form. 257/23382 useless extension candidates. Maximal degree in co-relation 77458. Up to 5226 conditions per place. [2022-11-21 14:02:07,565 INFO L137 encePairwiseOnDemand]: 170/197 looper letters, 589 selfloop transitions, 119 changer transitions 2/801 dead transitions. [2022-11-21 14:02:07,565 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 328 places, 801 transitions, 6597 flow [2022-11-21 14:02:07,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-11-21 14:02:07,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2022-11-21 14:02:07,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 3883 transitions. [2022-11-21 14:02:07,575 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5797252911316811 [2022-11-21 14:02:07,575 INFO L72 ComplementDD]: Start complementDD. Operand 34 states and 3883 transitions. [2022-11-21 14:02:07,575 INFO L73 IsDeterministic]: Start isDeterministic. Operand 34 states and 3883 transitions. [2022-11-21 14:02:07,578 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 14:02:07,579 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 34 states and 3883 transitions. [2022-11-21 14:02:07,588 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 35 states, 34 states have (on average 114.20588235294117) internal successors, (3883), 34 states have internal predecessors, (3883), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 14:02:07,598 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 35 states, 35 states have (on average 197.0) internal successors, (6895), 35 states have internal predecessors, (6895), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 14:02:07,601 INFO L81 ComplementDD]: Finished complementDD. Result has 35 states, 35 states have (on average 197.0) internal successors, (6895), 35 states have internal predecessors, (6895), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 14:02:07,601 INFO L175 Difference]: Start difference. First operand has 295 places, 337 transitions, 2442 flow. Second operand 34 states and 3883 transitions. [2022-11-21 14:02:07,601 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 328 places, 801 transitions, 6597 flow [2022-11-21 14:02:08,133 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 309 places, 801 transitions, 6449 flow, removed 39 selfloop flow, removed 19 redundant places. [2022-11-21 14:02:08,144 INFO L231 Difference]: Finished difference. Result has 321 places, 369 transitions, 3107 flow [2022-11-21 14:02:08,144 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=197, PETRI_DIFFERENCE_MINUEND_FLOW=2340, PETRI_DIFFERENCE_MINUEND_PLACES=276, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=337, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=89, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=234, PETRI_DIFFERENCE_SUBTRAHEND_STATES=34, PETRI_FLOW=3107, PETRI_PLACES=321, PETRI_TRANSITIONS=369} [2022-11-21 14:02:08,149 INFO L288 CegarLoopForPetriNet]: 166 programPoint places, 155 predicate places. [2022-11-21 14:02:08,149 INFO L495 AbstractCegarLoop]: Abstraction has has 321 places, 369 transitions, 3107 flow [2022-11-21 14:02:08,150 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 102.8695652173913) internal successors, (2366), 23 states have internal predecessors, (2366), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 14:02:08,150 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 14:02:08,150 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 14:02:08,150 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-21 14:02:08,151 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-11-21 14:02:08,151 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 14:02:08,151 INFO L85 PathProgramCache]: Analyzing trace with hash 404143428, now seen corresponding path program 3 times [2022-11-21 14:02:08,152 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 14:02:08,152 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [69333138] [2022-11-21 14:02:08,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 14:02:08,153 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 14:02:08,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 14:02:09,859 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 14:02:09,859 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 14:02:09,860 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [69333138] [2022-11-21 14:02:09,860 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [69333138] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 14:02:09,860 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 14:02:09,860 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2022-11-21 14:02:09,861 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [313194755] [2022-11-21 14:02:09,861 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 14:02:09,861 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-11-21 14:02:09,861 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 14:02:09,862 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-11-21 14:02:09,862 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=442, Unknown=0, NotChecked=0, Total=506 [2022-11-21 14:02:09,867 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 101 out of 197 [2022-11-21 14:02:09,870 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 321 places, 369 transitions, 3107 flow. Second operand has 23 states, 23 states have (on average 102.8695652173913) internal successors, (2366), 23 states have internal predecessors, (2366), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 14:02:09,870 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 14:02:09,871 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 101 of 197 [2022-11-21 14:02:09,871 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 14:02:19,694 INFO L130 PetriNetUnfolder]: 11146/25351 cut-off events. [2022-11-21 14:02:19,695 INFO L131 PetriNetUnfolder]: For 96032/104515 co-relation queries the response was YES. [2022-11-21 14:02:19,996 INFO L83 FinitePrefix]: Finished finitePrefix Result has 84209 conditions, 25351 events. 11146/25351 cut-off events. For 96032/104515 co-relation queries the response was YES. Maximal size of possible extension queue 856. Compared 268293 event pairs, 3967 based on Foata normal form. 282/24292 useless extension candidates. Maximal degree in co-relation 83907. Up to 5226 conditions per place. [2022-11-21 14:02:20,092 INFO L137 encePairwiseOnDemand]: 171/197 looper letters, 571 selfloop transitions, 135 changer transitions 2/799 dead transitions. [2022-11-21 14:02:20,092 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 354 places, 799 transitions, 6995 flow [2022-11-21 14:02:20,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-11-21 14:02:20,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2022-11-21 14:02:20,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 3872 transitions. [2022-11-21 14:02:20,101 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5780830098536877 [2022-11-21 14:02:20,101 INFO L72 ComplementDD]: Start complementDD. Operand 34 states and 3872 transitions. [2022-11-21 14:02:20,102 INFO L73 IsDeterministic]: Start isDeterministic. Operand 34 states and 3872 transitions. [2022-11-21 14:02:20,103 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 14:02:20,104 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 34 states and 3872 transitions. [2022-11-21 14:02:20,110 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 35 states, 34 states have (on average 113.88235294117646) internal successors, (3872), 34 states have internal predecessors, (3872), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 14:02:20,119 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 35 states, 35 states have (on average 197.0) internal successors, (6895), 35 states have internal predecessors, (6895), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 14:02:20,121 INFO L81 ComplementDD]: Finished complementDD. Result has 35 states, 35 states have (on average 197.0) internal successors, (6895), 35 states have internal predecessors, (6895), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 14:02:20,121 INFO L175 Difference]: Start difference. First operand has 321 places, 369 transitions, 3107 flow. Second operand 34 states and 3872 transitions. [2022-11-21 14:02:20,121 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 354 places, 799 transitions, 6995 flow [2022-11-21 14:02:20,751 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 334 places, 799 transitions, 6633 flow, removed 140 selfloop flow, removed 20 redundant places. [2022-11-21 14:02:20,758 INFO L231 Difference]: Finished difference. Result has 340 places, 386 transitions, 3599 flow [2022-11-21 14:02:20,759 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=197, PETRI_DIFFERENCE_MINUEND_FLOW=2957, PETRI_DIFFERENCE_MINUEND_PLACES=301, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=369, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=118, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=242, PETRI_DIFFERENCE_SUBTRAHEND_STATES=34, PETRI_FLOW=3599, PETRI_PLACES=340, PETRI_TRANSITIONS=386} [2022-11-21 14:02:20,759 INFO L288 CegarLoopForPetriNet]: 166 programPoint places, 174 predicate places. [2022-11-21 14:02:20,759 INFO L495 AbstractCegarLoop]: Abstraction has has 340 places, 386 transitions, 3599 flow [2022-11-21 14:02:20,760 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 102.8695652173913) internal successors, (2366), 23 states have internal predecessors, (2366), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 14:02:20,760 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 14:02:20,760 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 14:02:20,761 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-21 14:02:20,761 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-11-21 14:02:20,761 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 14:02:20,761 INFO L85 PathProgramCache]: Analyzing trace with hash 1815221092, now seen corresponding path program 4 times [2022-11-21 14:02:20,762 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 14:02:20,762 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [559387091] [2022-11-21 14:02:20,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 14:02:20,762 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 14:02:20,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 14:02:22,916 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 14:02:22,916 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 14:02:22,916 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [559387091] [2022-11-21 14:02:22,916 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [559387091] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 14:02:22,917 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 14:02:22,917 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [27] imperfect sequences [] total 27 [2022-11-21 14:02:22,917 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [135077430] [2022-11-21 14:02:22,917 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 14:02:22,917 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-11-21 14:02:22,917 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 14:02:22,918 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-11-21 14:02:22,918 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=680, Unknown=0, NotChecked=0, Total=756 [2022-11-21 14:02:22,921 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 87 out of 197 [2022-11-21 14:02:22,923 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 340 places, 386 transitions, 3599 flow. Second operand has 28 states, 28 states have (on average 88.78571428571429) internal successors, (2486), 28 states have internal predecessors, (2486), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 14:02:22,923 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 14:02:22,923 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 87 of 197 [2022-11-21 14:02:22,923 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 14:02:35,206 INFO L130 PetriNetUnfolder]: 18126/37692 cut-off events. [2022-11-21 14:02:35,206 INFO L131 PetriNetUnfolder]: For 132517/142415 co-relation queries the response was YES. [2022-11-21 14:02:35,754 INFO L83 FinitePrefix]: Finished finitePrefix Result has 122628 conditions, 37692 events. 18126/37692 cut-off events. For 132517/142415 co-relation queries the response was YES. Maximal size of possible extension queue 1128. Compared 384770 event pairs, 6828 based on Foata normal form. 466/36381 useless extension candidates. Maximal degree in co-relation 122305. Up to 23990 conditions per place. [2022-11-21 14:02:36,254 INFO L137 encePairwiseOnDemand]: 168/197 looper letters, 323 selfloop transitions, 189 changer transitions 7/595 dead transitions. [2022-11-21 14:02:36,254 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 365 places, 595 transitions, 5969 flow [2022-11-21 14:02:36,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-11-21 14:02:36,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2022-11-21 14:02:36,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 2554 transitions. [2022-11-21 14:02:36,259 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4986333463490824 [2022-11-21 14:02:36,259 INFO L72 ComplementDD]: Start complementDD. Operand 26 states and 2554 transitions. [2022-11-21 14:02:36,259 INFO L73 IsDeterministic]: Start isDeterministic. Operand 26 states and 2554 transitions. [2022-11-21 14:02:36,260 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 14:02:36,261 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 26 states and 2554 transitions. [2022-11-21 14:02:36,265 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 27 states, 26 states have (on average 98.23076923076923) internal successors, (2554), 26 states have internal predecessors, (2554), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 14:02:36,271 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 27 states, 27 states have (on average 197.0) internal successors, (5319), 27 states have internal predecessors, (5319), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 14:02:36,274 INFO L81 ComplementDD]: Finished complementDD. Result has 27 states, 27 states have (on average 197.0) internal successors, (5319), 27 states have internal predecessors, (5319), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 14:02:36,274 INFO L175 Difference]: Start difference. First operand has 340 places, 386 transitions, 3599 flow. Second operand 26 states and 2554 transitions. [2022-11-21 14:02:36,274 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 365 places, 595 transitions, 5969 flow [2022-11-21 14:02:37,077 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 339 places, 595 transitions, 5759 flow, removed 10 selfloop flow, removed 26 redundant places. [2022-11-21 14:02:37,083 INFO L231 Difference]: Finished difference. Result has 349 places, 444 transitions, 4452 flow [2022-11-21 14:02:37,084 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=197, PETRI_DIFFERENCE_MINUEND_FLOW=3408, PETRI_DIFFERENCE_MINUEND_PLACES=314, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=386, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=131, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=227, PETRI_DIFFERENCE_SUBTRAHEND_STATES=26, PETRI_FLOW=4452, PETRI_PLACES=349, PETRI_TRANSITIONS=444} [2022-11-21 14:02:37,084 INFO L288 CegarLoopForPetriNet]: 166 programPoint places, 183 predicate places. [2022-11-21 14:02:37,085 INFO L495 AbstractCegarLoop]: Abstraction has has 349 places, 444 transitions, 4452 flow [2022-11-21 14:02:37,085 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 88.78571428571429) internal successors, (2486), 28 states have internal predecessors, (2486), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 14:02:37,086 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 14:02:37,086 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 14:02:37,086 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-21 14:02:37,086 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting my_callbackErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2022-11-21 14:02:37,086 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 14:02:37,087 INFO L85 PathProgramCache]: Analyzing trace with hash -732265470, now seen corresponding path program 2 times [2022-11-21 14:02:37,087 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 14:02:37,087 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [351755673] [2022-11-21 14:02:37,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 14:02:37,087 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 14:02:37,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 14:02:39,078 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 14:02:39,079 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 14:02:39,079 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [351755673] [2022-11-21 14:02:39,079 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [351755673] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 14:02:39,079 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 14:02:39,080 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [27] imperfect sequences [] total 27 [2022-11-21 14:02:39,080 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1870844850] [2022-11-21 14:02:39,080 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 14:02:39,081 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-11-21 14:02:39,082 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 14:02:39,082 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-11-21 14:02:39,083 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=679, Unknown=0, NotChecked=0, Total=756 [2022-11-21 14:02:39,086 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 87 out of 197 [2022-11-21 14:02:39,088 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 349 places, 444 transitions, 4452 flow. Second operand has 28 states, 28 states have (on average 88.78571428571429) internal successors, (2486), 28 states have internal predecessors, (2486), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 14:02:39,088 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 14:02:39,089 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 87 of 197 [2022-11-21 14:02:39,089 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand