./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/weaver/parallel-parallel-sum-2.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94f7d6da-49b4-4e3a-a035-cd55318916cc/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94f7d6da-49b4-4e3a-a035-cd55318916cc/bin/uautomizer-uyxdKDjOR8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94f7d6da-49b4-4e3a-a035-cd55318916cc/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94f7d6da-49b4-4e3a-a035-cd55318916cc/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/parallel-parallel-sum-2.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94f7d6da-49b4-4e3a-a035-cd55318916cc/bin/uautomizer-uyxdKDjOR8/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94f7d6da-49b4-4e3a-a035-cd55318916cc/bin/uautomizer-uyxdKDjOR8 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash c0b350b5c7953744a22c8334b20c4dc8efdff09f1ecb36de8b1744d1e20f0260 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-13 11:37:13,867 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 11:37:13,869 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 11:37:13,887 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 11:37:13,887 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 11:37:13,888 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 11:37:13,890 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 11:37:13,891 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 11:37:13,892 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 11:37:13,893 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 11:37:13,894 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 11:37:13,895 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 11:37:13,895 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 11:37:13,896 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 11:37:13,897 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 11:37:13,898 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 11:37:13,899 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 11:37:13,900 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 11:37:13,901 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 11:37:13,903 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 11:37:13,904 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 11:37:13,906 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 11:37:13,907 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 11:37:13,907 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 11:37:13,910 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 11:37:13,911 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 11:37:13,911 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 11:37:13,912 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 11:37:13,912 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 11:37:13,913 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 11:37:13,913 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 11:37:13,914 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 11:37:13,915 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 11:37:13,915 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 11:37:13,916 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 11:37:13,916 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 11:37:13,917 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 11:37:13,917 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 11:37:13,917 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 11:37:13,918 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 11:37:13,918 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 11:37:13,919 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94f7d6da-49b4-4e3a-a035-cd55318916cc/bin/uautomizer-uyxdKDjOR8/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-12-13 11:37:13,937 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 11:37:13,938 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 11:37:13,938 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 11:37:13,938 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 11:37:13,938 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 11:37:13,939 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 11:37:13,944 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 11:37:13,944 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 11:37:13,944 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 11:37:13,945 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 11:37:13,945 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 11:37:13,945 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-13 11:37:13,945 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 11:37:13,945 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 11:37:13,946 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 11:37:13,946 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 11:37:13,946 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 11:37:13,946 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 11:37:13,946 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-12-13 11:37:13,947 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 11:37:13,947 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 11:37:13,947 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 11:37:13,947 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 11:37:13,947 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 11:37:13,948 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 11:37:13,948 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 11:37:13,948 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 11:37:13,948 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 11:37:13,948 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 11:37:13,949 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 11:37:13,949 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 11:37:13,949 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 11:37:13,949 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 11:37:13,949 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 11:37:13,949 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 11:37:13,950 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 11:37:13,950 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 11:37:13,950 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94f7d6da-49b4-4e3a-a035-cd55318916cc/bin/uautomizer-uyxdKDjOR8/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94f7d6da-49b4-4e3a-a035-cd55318916cc/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c0b350b5c7953744a22c8334b20c4dc8efdff09f1ecb36de8b1744d1e20f0260 [2022-12-13 11:37:14,137 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 11:37:14,156 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 11:37:14,159 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 11:37:14,160 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 11:37:14,161 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 11:37:14,162 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94f7d6da-49b4-4e3a-a035-cd55318916cc/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/weaver/parallel-parallel-sum-2.wvr.c [2022-12-13 11:37:16,788 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 11:37:16,917 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 11:37:16,917 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94f7d6da-49b4-4e3a-a035-cd55318916cc/sv-benchmarks/c/weaver/parallel-parallel-sum-2.wvr.c [2022-12-13 11:37:16,922 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94f7d6da-49b4-4e3a-a035-cd55318916cc/bin/uautomizer-uyxdKDjOR8/data/d5894515f/aa65f1daae9543da8a09d3e10a496ad7/FLAG6ecfe2821 [2022-12-13 11:37:16,933 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94f7d6da-49b4-4e3a-a035-cd55318916cc/bin/uautomizer-uyxdKDjOR8/data/d5894515f/aa65f1daae9543da8a09d3e10a496ad7 [2022-12-13 11:37:16,935 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 11:37:16,936 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 11:37:16,936 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 11:37:16,937 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 11:37:16,939 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 11:37:16,940 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 11:37:16" (1/1) ... [2022-12-13 11:37:16,941 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@45062a47 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:37:16, skipping insertion in model container [2022-12-13 11:37:16,941 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 11:37:16" (1/1) ... [2022-12-13 11:37:16,947 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 11:37:16,970 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 11:37:17,082 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 11:37:17,085 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 11:37:17,086 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 11:37:17,086 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 11:37:17,089 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 11:37:17,090 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 11:37:17,090 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 11:37:17,090 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 11:37:17,094 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 11:37:17,095 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 11:37:17,096 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 11:37:17,096 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 11:37:17,097 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 11:37:17,097 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 11:37:17,098 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 11:37:17,098 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 11:37:17,099 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 11:37:17,099 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 11:37:17,101 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 11:37:17,102 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 11:37:17,106 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_94f7d6da-49b4-4e3a-a035-cd55318916cc/sv-benchmarks/c/weaver/parallel-parallel-sum-2.wvr.c[4225,4238] [2022-12-13 11:37:17,111 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 11:37:17,119 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 11:37:17,128 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 11:37:17,129 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 11:37:17,129 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 11:37:17,130 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 11:37:17,130 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 11:37:17,131 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 11:37:17,131 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 11:37:17,131 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 11:37:17,134 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 11:37:17,134 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 11:37:17,134 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 11:37:17,135 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 11:37:17,135 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 11:37:17,136 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 11:37:17,136 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 11:37:17,137 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 11:37:17,137 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 11:37:17,137 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 11:37:17,139 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 11:37:17,139 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 11:37:17,143 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_94f7d6da-49b4-4e3a-a035-cd55318916cc/sv-benchmarks/c/weaver/parallel-parallel-sum-2.wvr.c[4225,4238] [2022-12-13 11:37:17,146 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 11:37:17,157 INFO L208 MainTranslator]: Completed translation [2022-12-13 11:37:17,158 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:37:17 WrapperNode [2022-12-13 11:37:17,158 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 11:37:17,159 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 11:37:17,159 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 11:37:17,159 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 11:37:17,164 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:37:17" (1/1) ... [2022-12-13 11:37:17,171 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:37:17" (1/1) ... [2022-12-13 11:37:17,196 INFO L138 Inliner]: procedures = 29, calls = 88, calls flagged for inlining = 22, calls inlined = 32, statements flattened = 482 [2022-12-13 11:37:17,196 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 11:37:17,197 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 11:37:17,197 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 11:37:17,197 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 11:37:17,205 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:37:17" (1/1) ... [2022-12-13 11:37:17,205 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:37:17" (1/1) ... [2022-12-13 11:37:17,208 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:37:17" (1/1) ... [2022-12-13 11:37:17,208 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:37:17" (1/1) ... [2022-12-13 11:37:17,216 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:37:17" (1/1) ... [2022-12-13 11:37:17,220 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:37:17" (1/1) ... [2022-12-13 11:37:17,222 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:37:17" (1/1) ... [2022-12-13 11:37:17,223 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:37:17" (1/1) ... [2022-12-13 11:37:17,226 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 11:37:17,227 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 11:37:17,227 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 11:37:17,227 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 11:37:17,228 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:37:17" (1/1) ... [2022-12-13 11:37:17,233 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 11:37:17,245 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94f7d6da-49b4-4e3a-a035-cd55318916cc/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 11:37:17,257 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94f7d6da-49b4-4e3a-a035-cd55318916cc/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 11:37:17,259 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94f7d6da-49b4-4e3a-a035-cd55318916cc/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 11:37:17,291 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 11:37:17,291 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 11:37:17,291 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-13 11:37:17,291 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-13 11:37:17,292 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-12-13 11:37:17,292 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-12-13 11:37:17,292 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-12-13 11:37:17,292 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-12-13 11:37:17,292 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-12-13 11:37:17,292 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-12-13 11:37:17,292 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2022-12-13 11:37:17,292 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2022-12-13 11:37:17,293 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 11:37:17,293 INFO L130 BoogieDeclarations]: Found specification of procedure thread5 [2022-12-13 11:37:17,293 INFO L138 BoogieDeclarations]: Found implementation of procedure thread5 [2022-12-13 11:37:17,293 INFO L130 BoogieDeclarations]: Found specification of procedure thread6 [2022-12-13 11:37:17,293 INFO L138 BoogieDeclarations]: Found implementation of procedure thread6 [2022-12-13 11:37:17,293 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-12-13 11:37:17,293 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-12-13 11:37:17,293 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-12-13 11:37:17,294 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 11:37:17,294 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 11:37:17,294 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 11:37:17,295 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-12-13 11:37:17,421 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 11:37:17,423 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 11:37:17,905 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 11:37:18,414 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 11:37:18,415 INFO L300 CfgBuilder]: Removed 5 assume(true) statements. [2022-12-13 11:37:18,417 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 11:37:18 BoogieIcfgContainer [2022-12-13 11:37:18,417 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 11:37:18,420 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 11:37:18,420 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 11:37:18,423 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 11:37:18,423 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 11:37:16" (1/3) ... [2022-12-13 11:37:18,424 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@585871b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 11:37:18, skipping insertion in model container [2022-12-13 11:37:18,424 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:37:17" (2/3) ... [2022-12-13 11:37:18,424 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@585871b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 11:37:18, skipping insertion in model container [2022-12-13 11:37:18,424 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 11:37:18" (3/3) ... [2022-12-13 11:37:18,425 INFO L112 eAbstractionObserver]: Analyzing ICFG parallel-parallel-sum-2.wvr.c [2022-12-13 11:37:18,434 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-12-13 11:37:18,444 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 11:37:18,444 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 48 error locations. [2022-12-13 11:37:18,445 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-13 11:37:18,662 INFO L144 ThreadInstanceAdder]: Constructed 18 joinOtherThreadTransitions. [2022-12-13 11:37:18,691 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 370 places, 374 transitions, 820 flow [2022-12-13 11:37:18,772 INFO L130 PetriNetUnfolder]: 21/316 cut-off events. [2022-12-13 11:37:18,772 INFO L131 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2022-12-13 11:37:18,780 INFO L83 FinitePrefix]: Finished finitePrefix Result has 345 conditions, 316 events. 21/316 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 553 event pairs, 0 based on Foata normal form. 0/247 useless extension candidates. Maximal degree in co-relation 263. Up to 3 conditions per place. [2022-12-13 11:37:18,780 INFO L82 GeneralOperation]: Start removeDead. Operand has 370 places, 374 transitions, 820 flow [2022-12-13 11:37:18,785 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 296 places, 297 transitions, 639 flow [2022-12-13 11:37:18,788 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2022-12-13 11:37:18,796 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 296 places, 297 transitions, 639 flow [2022-12-13 11:37:18,798 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 296 places, 297 transitions, 639 flow [2022-12-13 11:37:18,798 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 296 places, 297 transitions, 639 flow [2022-12-13 11:37:18,867 INFO L130 PetriNetUnfolder]: 20/297 cut-off events. [2022-12-13 11:37:18,868 INFO L131 PetriNetUnfolder]: For 5/5 co-relation queries the response was YES. [2022-12-13 11:37:18,869 INFO L83 FinitePrefix]: Finished finitePrefix Result has 325 conditions, 297 events. 20/297 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 551 event pairs, 0 based on Foata normal form. 0/229 useless extension candidates. Maximal degree in co-relation 263. Up to 3 conditions per place. [2022-12-13 11:37:18,875 INFO L119 LiptonReduction]: Number of co-enabled transitions 16412 [2022-12-13 11:37:40,895 INFO L134 LiptonReduction]: Checked pairs total: 57113 [2022-12-13 11:37:40,895 INFO L136 LiptonReduction]: Total number of compositions: 307 [2022-12-13 11:37:40,907 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 11:37:40,912 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;@3e2968a8, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 11:37:40,912 INFO L358 AbstractCegarLoop]: Starting to check reachability of 102 error locations. [2022-12-13 11:37:40,914 INFO L130 PetriNetUnfolder]: 1/2 cut-off events. [2022-12-13 11:37:40,914 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 11:37:40,914 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 11:37:40,915 INFO L209 CegarLoopForPetriNet]: trace histogram [1] [2022-12-13 11:37:40,915 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 99 more)] === [2022-12-13 11:37:40,918 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:37:40,919 INFO L85 PathProgramCache]: Analyzing trace with hash 2127, now seen corresponding path program 1 times [2022-12-13 11:37:40,925 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 11:37:40,925 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [359620838] [2022-12-13 11:37:40,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:37:40,926 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 11:37:40,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:37:40,999 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 11:37:40,999 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 11:37:40,999 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [359620838] [2022-12-13 11:37:41,000 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [359620838] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 11:37:41,000 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 11:37:41,000 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-12-13 11:37:41,001 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1003394320] [2022-12-13 11:37:41,001 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 11:37:41,007 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-13 11:37:41,007 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 11:37:41,021 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-13 11:37:41,023 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-13 11:37:41,024 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 271 out of 685 [2022-12-13 11:37:41,026 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 117 places, 107 transitions, 259 flow. Second operand has 2 states, 2 states have (on average 271.5) internal successors, (543), 2 states have internal predecessors, (543), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:37:41,026 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 11:37:41,027 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 271 of 685 [2022-12-13 11:37:41,027 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 11:38:09,163 INFO L130 PetriNetUnfolder]: 222342/280691 cut-off events. [2022-12-13 11:38:09,163 INFO L131 PetriNetUnfolder]: For 18314/18314 co-relation queries the response was YES. [2022-12-13 11:38:09,582 INFO L83 FinitePrefix]: Finished finitePrefix Result has 578551 conditions, 280691 events. 222342/280691 cut-off events. For 18314/18314 co-relation queries the response was YES. Maximal size of possible extension queue 13697. Compared 1628639 event pairs, 194005 based on Foata normal form. 0/112615 useless extension candidates. Maximal degree in co-relation 576117. Up to 274187 conditions per place. [2022-12-13 11:38:10,537 INFO L137 encePairwiseOnDemand]: 671/685 looper letters, 71 selfloop transitions, 0 changer transitions 0/93 dead transitions. [2022-12-13 11:38:10,537 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 104 places, 93 transitions, 373 flow [2022-12-13 11:38:10,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 11:38:10,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2022-12-13 11:38:10,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 627 transitions. [2022-12-13 11:38:10,552 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4576642335766423 [2022-12-13 11:38:10,553 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 627 transitions. [2022-12-13 11:38:10,554 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 627 transitions. [2022-12-13 11:38:10,556 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 11:38:10,559 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 627 transitions. [2022-12-13 11:38:10,563 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 313.5) internal successors, (627), 2 states have internal predecessors, (627), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:38:10,569 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 685.0) internal successors, (2055), 3 states have internal predecessors, (2055), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:38:10,570 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 685.0) internal successors, (2055), 3 states have internal predecessors, (2055), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:38:10,571 INFO L175 Difference]: Start difference. First operand has 117 places, 107 transitions, 259 flow. Second operand 2 states and 627 transitions. [2022-12-13 11:38:10,572 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 104 places, 93 transitions, 373 flow [2022-12-13 11:38:26,202 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 93 places, 93 transitions, 344 flow, removed 0 selfloop flow, removed 11 redundant places. [2022-12-13 11:38:26,204 INFO L231 Difference]: Finished difference. Result has 93 places, 93 transitions, 202 flow [2022-12-13 11:38:26,205 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=685, PETRI_DIFFERENCE_MINUEND_FLOW=202, PETRI_DIFFERENCE_MINUEND_PLACES=92, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=93, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=93, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=202, PETRI_PLACES=93, PETRI_TRANSITIONS=93} [2022-12-13 11:38:26,208 INFO L288 CegarLoopForPetriNet]: 117 programPoint places, -24 predicate places. [2022-12-13 11:38:26,208 INFO L495 AbstractCegarLoop]: Abstraction has has 93 places, 93 transitions, 202 flow [2022-12-13 11:38:26,209 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 271.5) internal successors, (543), 2 states have internal predecessors, (543), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:38:26,209 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 11:38:26,209 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1] [2022-12-13 11:38:26,209 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 11:38:26,209 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 99 more)] === [2022-12-13 11:38:26,210 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:38:26,210 INFO L85 PathProgramCache]: Analyzing trace with hash 67996, now seen corresponding path program 1 times [2022-12-13 11:38:26,210 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 11:38:26,210 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [229199692] [2022-12-13 11:38:26,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:38:26,211 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 11:38:26,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:38:26,360 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 11:38:26,360 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 11:38:26,360 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [229199692] [2022-12-13 11:38:26,360 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [229199692] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 11:38:26,360 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 11:38:26,360 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-13 11:38:26,361 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [345809114] [2022-12-13 11:38:26,361 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 11:38:26,362 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 11:38:26,362 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 11:38:26,362 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 11:38:26,363 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 11:38:26,375 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 268 out of 685 [2022-12-13 11:38:26,376 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 93 places, 93 transitions, 202 flow. Second operand has 3 states, 3 states have (on average 268.6666666666667) internal successors, (806), 3 states have internal predecessors, (806), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:38:26,376 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 11:38:26,376 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 268 of 685 [2022-12-13 11:38:26,376 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 11:39:14,352 INFO L130 PetriNetUnfolder]: 444683/561859 cut-off events. [2022-12-13 11:39:14,353 INFO L131 PetriNetUnfolder]: For 6448/6448 co-relation queries the response was YES. [2022-12-13 11:39:15,038 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1122465 conditions, 561859 events. 444683/561859 cut-off events. For 6448/6448 co-relation queries the response was YES. Maximal size of possible extension queue 23269. Compared 3475870 event pairs, 388010 based on Foata normal form. 0/225153 useless extension candidates. Maximal degree in co-relation 1122462. Up to 274187 conditions per place. [2022-12-13 11:39:16,701 INFO L137 encePairwiseOnDemand]: 681/685 looper letters, 137 selfloop transitions, 2 changer transitions 0/161 dead transitions. [2022-12-13 11:39:16,702 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 95 places, 161 transitions, 632 flow [2022-12-13 11:39:16,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 11:39:16,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 11:39:16,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 945 transitions. [2022-12-13 11:39:16,705 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.45985401459854014 [2022-12-13 11:39:16,705 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 945 transitions. [2022-12-13 11:39:16,705 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 945 transitions. [2022-12-13 11:39:16,706 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 11:39:16,706 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 945 transitions. [2022-12-13 11:39:16,708 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 315.0) internal successors, (945), 3 states have internal predecessors, (945), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:39:16,711 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 685.0) internal successors, (2740), 4 states have internal predecessors, (2740), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:39:16,712 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 685.0) internal successors, (2740), 4 states have internal predecessors, (2740), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:39:16,712 INFO L175 Difference]: Start difference. First operand has 93 places, 93 transitions, 202 flow. Second operand 3 states and 945 transitions. [2022-12-13 11:39:16,712 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 95 places, 161 transitions, 632 flow [2022-12-13 11:39:16,713 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 95 places, 161 transitions, 632 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-12-13 11:39:16,715 INFO L231 Difference]: Finished difference. Result has 96 places, 94 transitions, 216 flow [2022-12-13 11:39:16,715 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=685, PETRI_DIFFERENCE_MINUEND_FLOW=202, PETRI_DIFFERENCE_MINUEND_PLACES=93, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=93, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=91, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=216, PETRI_PLACES=96, PETRI_TRANSITIONS=94} [2022-12-13 11:39:16,716 INFO L288 CegarLoopForPetriNet]: 117 programPoint places, -21 predicate places. [2022-12-13 11:39:16,716 INFO L495 AbstractCegarLoop]: Abstraction has has 96 places, 94 transitions, 216 flow [2022-12-13 11:39:16,716 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 268.6666666666667) internal successors, (806), 3 states have internal predecessors, (806), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:39:16,716 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 11:39:16,716 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2022-12-13 11:39:16,717 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-13 11:39:16,717 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 99 more)] === [2022-12-13 11:39:16,717 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:39:16,717 INFO L85 PathProgramCache]: Analyzing trace with hash 2110648, now seen corresponding path program 1 times [2022-12-13 11:39:16,717 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 11:39:16,717 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [425800591] [2022-12-13 11:39:16,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:39:16,718 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 11:39:16,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:39:16,775 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 11:39:16,775 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 11:39:16,775 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [425800591] [2022-12-13 11:39:16,776 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [425800591] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 11:39:16,776 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 11:39:16,776 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 11:39:16,776 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1685381748] [2022-12-13 11:39:16,776 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 11:39:16,776 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 11:39:16,777 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 11:39:16,777 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 11:39:16,777 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 11:39:16,787 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 268 out of 685 [2022-12-13 11:39:16,788 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 96 places, 94 transitions, 216 flow. Second operand has 3 states, 3 states have (on average 269.0) internal successors, (807), 3 states have internal predecessors, (807), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:39:16,788 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 11:39:16,788 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 268 of 685 [2022-12-13 11:39:16,788 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 11:40:03,282 INFO L130 PetriNetUnfolder]: 444683/561378 cut-off events. [2022-12-13 11:40:03,282 INFO L131 PetriNetUnfolder]: For 6402/6402 co-relation queries the response was YES. [2022-12-13 11:40:04,055 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1121990 conditions, 561378 events. 444683/561378 cut-off events. For 6402/6402 co-relation queries the response was YES. Maximal size of possible extension queue 26002. Compared 3481596 event pairs, 388010 based on Foata normal form. 0/225231 useless extension candidates. Maximal degree in co-relation 1121985. Up to 548368 conditions per place. [2022-12-13 11:40:05,704 INFO L137 encePairwiseOnDemand]: 683/685 looper letters, 70 selfloop transitions, 1 changer transitions 0/93 dead transitions. [2022-12-13 11:40:05,704 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 97 places, 93 transitions, 354 flow [2022-12-13 11:40:05,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 11:40:05,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 11:40:05,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 875 transitions. [2022-12-13 11:40:05,707 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4257907542579075 [2022-12-13 11:40:05,707 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 875 transitions. [2022-12-13 11:40:05,707 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 875 transitions. [2022-12-13 11:40:05,708 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 11:40:05,708 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 875 transitions. [2022-12-13 11:40:05,710 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 291.6666666666667) internal successors, (875), 3 states have internal predecessors, (875), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:40:05,713 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 685.0) internal successors, (2740), 4 states have internal predecessors, (2740), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:40:05,714 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 685.0) internal successors, (2740), 4 states have internal predecessors, (2740), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:40:05,714 INFO L175 Difference]: Start difference. First operand has 96 places, 94 transitions, 216 flow. Second operand 3 states and 875 transitions. [2022-12-13 11:40:05,714 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 97 places, 93 transitions, 354 flow [2022-12-13 11:40:05,715 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 96 places, 93 transitions, 352 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-13 11:40:05,716 INFO L231 Difference]: Finished difference. Result has 96 places, 93 transitions, 212 flow [2022-12-13 11:40:05,717 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=685, PETRI_DIFFERENCE_MINUEND_FLOW=210, PETRI_DIFFERENCE_MINUEND_PLACES=94, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=93, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=92, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=212, PETRI_PLACES=96, PETRI_TRANSITIONS=93} [2022-12-13 11:40:05,717 INFO L288 CegarLoopForPetriNet]: 117 programPoint places, -21 predicate places. [2022-12-13 11:40:05,717 INFO L495 AbstractCegarLoop]: Abstraction has has 96 places, 93 transitions, 212 flow [2022-12-13 11:40:05,718 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 269.0) internal successors, (807), 3 states have internal predecessors, (807), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:40:05,718 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 11:40:05,718 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2022-12-13 11:40:05,718 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-13 11:40:05,718 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 99 more)] === [2022-12-13 11:40:05,719 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:40:05,719 INFO L85 PathProgramCache]: Analyzing trace with hash 2110649, now seen corresponding path program 1 times [2022-12-13 11:40:05,719 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 11:40:05,719 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1672551754] [2022-12-13 11:40:05,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:40:05,719 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 11:40:05,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:40:05,784 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 11:40:05,784 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 11:40:05,784 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1672551754] [2022-12-13 11:40:05,784 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1672551754] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 11:40:05,784 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1241197594] [2022-12-13 11:40:05,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:40:05,785 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 11:40:05,785 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94f7d6da-49b4-4e3a-a035-cd55318916cc/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 11:40:05,786 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94f7d6da-49b4-4e3a-a035-cd55318916cc/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 11:40:05,787 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94f7d6da-49b4-4e3a-a035-cd55318916cc/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-13 11:40:05,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:40:05,924 INFO L263 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 4 conjunts are in the unsatisfiable core [2022-12-13 11:40:05,927 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 11:40:05,954 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 11:40:05,954 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 11:40:05,968 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 11:40:05,969 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1241197594] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 11:40:05,969 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 11:40:05,969 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2, 2] total 5 [2022-12-13 11:40:05,969 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [489184542] [2022-12-13 11:40:05,969 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 11:40:05,970 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 11:40:05,970 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 11:40:05,970 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 11:40:05,970 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2022-12-13 11:40:05,996 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 268 out of 685 [2022-12-13 11:40:05,999 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 96 places, 93 transitions, 212 flow. Second operand has 7 states, 7 states have (on average 269.14285714285717) internal successors, (1884), 7 states have internal predecessors, (1884), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:40:05,999 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 11:40:05,999 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 268 of 685 [2022-12-13 11:40:06,000 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 11:42:13,614 INFO L130 PetriNetUnfolder]: 1111706/1405362 cut-off events. [2022-12-13 11:42:13,614 INFO L131 PetriNetUnfolder]: For 16189/16189 co-relation queries the response was YES. [2022-12-13 11:42:15,295 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2806877 conditions, 1405362 events. 1111706/1405362 cut-off events. For 16189/16189 co-relation queries the response was YES. Maximal size of possible extension queue 50492. Compared 9434585 event pairs, 970025 based on Foata normal form. 0/562792 useless extension candidates. Maximal degree in co-relation 2806872. Up to 274186 conditions per place. [2022-12-13 11:42:20,005 INFO L137 encePairwiseOnDemand]: 682/685 looper letters, 337 selfloop transitions, 5 changer transitions 0/364 dead transitions. [2022-12-13 11:42:20,005 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 101 places, 364 transitions, 1508 flow [2022-12-13 11:42:20,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 11:42:20,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-13 11:42:20,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1953 transitions. [2022-12-13 11:42:20,010 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4751824817518248 [2022-12-13 11:42:20,010 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1953 transitions. [2022-12-13 11:42:20,010 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1953 transitions. [2022-12-13 11:42:20,011 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 11:42:20,011 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1953 transitions. [2022-12-13 11:42:20,014 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 325.5) internal successors, (1953), 6 states have internal predecessors, (1953), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:42:20,019 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 685.0) internal successors, (4795), 7 states have internal predecessors, (4795), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:42:20,021 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 685.0) internal successors, (4795), 7 states have internal predecessors, (4795), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:42:20,021 INFO L175 Difference]: Start difference. First operand has 96 places, 93 transitions, 212 flow. Second operand 6 states and 1953 transitions. [2022-12-13 11:42:20,021 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 101 places, 364 transitions, 1508 flow [2022-12-13 11:42:20,024 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 100 places, 364 transitions, 1507 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-13 11:42:20,028 INFO L231 Difference]: Finished difference. Result has 103 places, 96 transitions, 247 flow [2022-12-13 11:42:20,028 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=685, PETRI_DIFFERENCE_MINUEND_FLOW=211, PETRI_DIFFERENCE_MINUEND_PLACES=95, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=93, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=90, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=247, PETRI_PLACES=103, PETRI_TRANSITIONS=96} [2022-12-13 11:42:20,029 INFO L288 CegarLoopForPetriNet]: 117 programPoint places, -14 predicate places. [2022-12-13 11:42:20,029 INFO L495 AbstractCegarLoop]: Abstraction has has 103 places, 96 transitions, 247 flow [2022-12-13 11:42:20,031 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 269.14285714285717) internal successors, (1884), 7 states have internal predecessors, (1884), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:42:20,031 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 11:42:20,031 INFO L209 CegarLoopForPetriNet]: trace histogram [4, 1, 1] [2022-12-13 11:42:20,038 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94f7d6da-49b4-4e3a-a035-cd55318916cc/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-13 11:42:20,231 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94f7d6da-49b4-4e3a-a035-cd55318916cc/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 11:42:20,232 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 99 more)] === [2022-12-13 11:42:20,232 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:42:20,232 INFO L85 PathProgramCache]: Analyzing trace with hash -1543442275, now seen corresponding path program 2 times [2022-12-13 11:42:20,232 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 11:42:20,233 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [722993926] [2022-12-13 11:42:20,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:42:20,233 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 11:42:20,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:42:20,353 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 11:42:20,353 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 11:42:20,353 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [722993926] [2022-12-13 11:42:20,353 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [722993926] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 11:42:20,354 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [928096556] [2022-12-13 11:42:20,354 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-12-13 11:42:20,354 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 11:42:20,354 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94f7d6da-49b4-4e3a-a035-cd55318916cc/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 11:42:20,355 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94f7d6da-49b4-4e3a-a035-cd55318916cc/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 11:42:20,356 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94f7d6da-49b4-4e3a-a035-cd55318916cc/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-13 11:42:20,479 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-12-13 11:42:20,479 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 11:42:20,480 INFO L263 TraceCheckSpWp]: Trace formula consists of 108 conjuncts, 6 conjunts are in the unsatisfiable core [2022-12-13 11:42:20,480 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 11:42:20,493 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-12-13 11:42:20,493 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 11:42:20,493 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [928096556] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 11:42:20,494 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-13 11:42:20,494 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [5] total 6 [2022-12-13 11:42:20,494 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1719602721] [2022-12-13 11:42:20,494 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 11:42:20,494 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 11:42:20,494 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 11:42:20,494 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 11:42:20,495 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-12-13 11:42:20,506 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 269 out of 685 [2022-12-13 11:42:20,506 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 103 places, 96 transitions, 247 flow. Second operand has 3 states, 3 states have (on average 270.0) internal successors, (810), 3 states have internal predecessors, (810), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:42:20,506 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 11:42:20,506 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 269 of 685 [2022-12-13 11:42:20,507 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 11:44:27,915 INFO L130 PetriNetUnfolder]: 1111706/1403441 cut-off events. [2022-12-13 11:44:27,915 INFO L131 PetriNetUnfolder]: For 16006/16006 co-relation queries the response was YES. [2022-12-13 11:44:30,180 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2804966 conditions, 1403441 events. 1111706/1403441 cut-off events. For 16006/16006 co-relation queries the response was YES. Maximal size of possible extension queue 50453. Compared 9401434 event pairs, 970025 based on Foata normal form. 1/563077 useless extension candidates. Maximal degree in co-relation 2804958. Up to 1370916 conditions per place. [2022-12-13 11:44:34,399 INFO L137 encePairwiseOnDemand]: 683/685 looper letters, 72 selfloop transitions, 1 changer transitions 0/95 dead transitions. [2022-12-13 11:44:34,400 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 104 places, 95 transitions, 383 flow [2022-12-13 11:44:34,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 11:44:34,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 11:44:34,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 877 transitions. [2022-12-13 11:44:34,403 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4267639902676399 [2022-12-13 11:44:34,403 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 877 transitions. [2022-12-13 11:44:34,403 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 877 transitions. [2022-12-13 11:44:34,404 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 11:44:34,404 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 877 transitions. [2022-12-13 11:44:34,406 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 292.3333333333333) internal successors, (877), 3 states have internal predecessors, (877), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:44:34,410 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 685.0) internal successors, (2740), 4 states have internal predecessors, (2740), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:44:34,411 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 685.0) internal successors, (2740), 4 states have internal predecessors, (2740), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:44:34,411 INFO L175 Difference]: Start difference. First operand has 103 places, 96 transitions, 247 flow. Second operand 3 states and 877 transitions. [2022-12-13 11:44:34,411 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 104 places, 95 transitions, 383 flow [2022-12-13 11:44:34,413 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 99 places, 95 transitions, 365 flow, removed 4 selfloop flow, removed 5 redundant places. [2022-12-13 11:44:34,414 INFO L231 Difference]: Finished difference. Result has 99 places, 95 transitions, 221 flow [2022-12-13 11:44:34,414 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=685, PETRI_DIFFERENCE_MINUEND_FLOW=219, PETRI_DIFFERENCE_MINUEND_PLACES=97, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=95, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=94, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=221, PETRI_PLACES=99, PETRI_TRANSITIONS=95} [2022-12-13 11:44:34,415 INFO L288 CegarLoopForPetriNet]: 117 programPoint places, -18 predicate places. [2022-12-13 11:44:34,415 INFO L495 AbstractCegarLoop]: Abstraction has has 99 places, 95 transitions, 221 flow [2022-12-13 11:44:34,416 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 270.0) internal successors, (810), 3 states have internal predecessors, (810), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:44:34,416 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 11:44:34,416 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 11:44:34,422 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94f7d6da-49b4-4e3a-a035-cd55318916cc/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-12-13 11:44:34,616 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94f7d6da-49b4-4e3a-a035-cd55318916cc/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 11:44:34,616 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting thread2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 99 more)] === [2022-12-13 11:44:34,617 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:44:34,617 INFO L85 PathProgramCache]: Analyzing trace with hash -1021685339, now seen corresponding path program 1 times [2022-12-13 11:44:34,617 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 11:44:34,617 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [323461007] [2022-12-13 11:44:34,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:44:34,618 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 11:44:34,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:44:34,816 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 11:44:34,816 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 11:44:34,816 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [323461007] [2022-12-13 11:44:34,817 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [323461007] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 11:44:34,817 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 11:44:34,817 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 11:44:34,817 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [573452186] [2022-12-13 11:44:34,817 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 11:44:34,818 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 11:44:34,818 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 11:44:34,818 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 11:44:34,818 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 11:44:34,884 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 262 out of 685 [2022-12-13 11:44:34,885 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 99 places, 95 transitions, 221 flow. Second operand has 4 states, 4 states have (on average 263.25) internal successors, (1053), 4 states have internal predecessors, (1053), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:44:34,885 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 11:44:34,885 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 262 of 685 [2022-12-13 11:44:34,885 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand