./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/weaver/popl20-three-array-min.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability 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_e8f66d76-c6c6-4424-ad96-202192661a0a/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8f66d76-c6c6-4424-ad96-202192661a0a/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_e8f66d76-c6c6-4424-ad96-202192661a0a/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8f66d76-c6c6-4424-ad96-202192661a0a/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/popl20-three-array-min.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8f66d76-c6c6-4424-ad96-202192661a0a/bin/uautomizer-uyxdKDjOR8/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8f66d76-c6c6-4424-ad96-202192661a0a/bin/uautomizer-uyxdKDjOR8 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 3e185f9c0dac86cdbb29caae2de39811a090d813c08c4c3552062c2aa77b8788 --- 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 11:06:28,882 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 11:06:28,884 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 11:06:28,898 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 11:06:28,898 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 11:06:28,899 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 11:06:28,900 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 11:06:28,901 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 11:06:28,902 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 11:06:28,903 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 11:06:28,903 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 11:06:28,904 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 11:06:28,904 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 11:06:28,905 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 11:06:28,906 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 11:06:28,907 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 11:06:28,907 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 11:06:28,908 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 11:06:28,909 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 11:06:28,910 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 11:06:28,911 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 11:06:28,913 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 11:06:28,915 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 11:06:28,915 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 11:06:28,918 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 11:06:28,918 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 11:06:28,919 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 11:06:28,920 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 11:06:28,920 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 11:06:28,921 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 11:06:28,921 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 11:06:28,921 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 11:06:28,922 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 11:06:28,923 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 11:06:28,924 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 11:06:28,924 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 11:06:28,924 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 11:06:28,925 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 11:06:28,925 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 11:06:28,926 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 11:06:28,926 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 11:06:28,927 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8f66d76-c6c6-4424-ad96-202192661a0a/bin/uautomizer-uyxdKDjOR8/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-12-13 11:06:28,943 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 11:06:28,944 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 11:06:28,944 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 11:06:28,944 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 11:06:28,945 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 11:06:28,945 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 11:06:28,945 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 11:06:28,945 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 11:06:28,945 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 11:06:28,946 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 11:06:28,946 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 11:06:28,946 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 11:06:28,946 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 11:06:28,946 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 11:06:28,947 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 11:06:28,947 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 11:06:28,947 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 11:06:28,947 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 11:06:28,947 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 11:06:28,947 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 11:06:28,948 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 11:06:28,948 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 11:06:28,948 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 11:06:28,948 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 11:06:28,948 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 11:06:28,948 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 11:06:28,949 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 11:06:28,949 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 11:06:28,949 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 11:06:28,949 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 11:06:28,949 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 11:06:28,949 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 11:06:28,950 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 11:06:28,950 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 11:06:28,950 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 11:06:28,950 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_e8f66d76-c6c6-4424-ad96-202192661a0a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8f66d76-c6c6-4424-ad96-202192661a0a/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3e185f9c0dac86cdbb29caae2de39811a090d813c08c4c3552062c2aa77b8788 [2022-12-13 11:06:29,111 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 11:06:29,128 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 11:06:29,130 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 11:06:29,131 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 11:06:29,131 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 11:06:29,132 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8f66d76-c6c6-4424-ad96-202192661a0a/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/weaver/popl20-three-array-min.wvr.c [2022-12-13 11:06:31,759 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 11:06:31,885 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 11:06:31,885 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8f66d76-c6c6-4424-ad96-202192661a0a/sv-benchmarks/c/weaver/popl20-three-array-min.wvr.c [2022-12-13 11:06:31,890 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8f66d76-c6c6-4424-ad96-202192661a0a/bin/uautomizer-uyxdKDjOR8/data/e89092c73/405109a96019496eb222e0278c465686/FLAG3857418e2 [2022-12-13 11:06:31,901 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8f66d76-c6c6-4424-ad96-202192661a0a/bin/uautomizer-uyxdKDjOR8/data/e89092c73/405109a96019496eb222e0278c465686 [2022-12-13 11:06:31,903 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 11:06:31,904 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 11:06:31,905 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 11:06:31,905 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 11:06:31,908 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 11:06:31,908 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 11:06:31" (1/1) ... [2022-12-13 11:06:31,909 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2a12b2f6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:06:31, skipping insertion in model container [2022-12-13 11:06:31,909 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 11:06:31" (1/1) ... [2022-12-13 11:06:31,915 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 11:06:31,928 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 11:06:32,039 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 11:06:32,040 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 11:06:32,041 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 11:06:32,041 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 11:06:32,042 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 11:06:32,043 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 11:06:32,049 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_e8f66d76-c6c6-4424-ad96-202192661a0a/sv-benchmarks/c/weaver/popl20-three-array-min.wvr.c[2815,2828] [2022-12-13 11:06:32,056 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 11:06:32,063 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 11:06:32,075 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 11:06:32,076 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 11:06:32,077 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 11:06:32,077 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 11:06:32,078 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 11:06:32,079 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 11:06:32,084 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_e8f66d76-c6c6-4424-ad96-202192661a0a/sv-benchmarks/c/weaver/popl20-three-array-min.wvr.c[2815,2828] [2022-12-13 11:06:32,088 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 11:06:32,105 INFO L208 MainTranslator]: Completed translation [2022-12-13 11:06:32,105 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:06:32 WrapperNode [2022-12-13 11:06:32,105 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 11:06:32,106 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 11:06:32,106 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 11:06:32,106 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 11:06:32,113 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:06:32" (1/1) ... [2022-12-13 11:06:32,121 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:06:32" (1/1) ... [2022-12-13 11:06:32,147 INFO L138 Inliner]: procedures = 26, calls = 57, calls flagged for inlining = 14, calls inlined = 22, statements flattened = 232 [2022-12-13 11:06:32,147 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 11:06:32,148 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 11:06:32,148 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 11:06:32,148 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 11:06:32,155 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:06:32" (1/1) ... [2022-12-13 11:06:32,155 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:06:32" (1/1) ... [2022-12-13 11:06:32,158 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:06:32" (1/1) ... [2022-12-13 11:06:32,158 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:06:32" (1/1) ... [2022-12-13 11:06:32,165 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:06:32" (1/1) ... [2022-12-13 11:06:32,170 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:06:32" (1/1) ... [2022-12-13 11:06:32,172 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:06:32" (1/1) ... [2022-12-13 11:06:32,174 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:06:32" (1/1) ... [2022-12-13 11:06:32,177 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 11:06:32,178 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 11:06:32,178 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 11:06:32,178 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 11:06:32,179 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:06:32" (1/1) ... [2022-12-13 11:06:32,186 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 11:06:32,198 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8f66d76-c6c6-4424-ad96-202192661a0a/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 11:06:32,209 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8f66d76-c6c6-4424-ad96-202192661a0a/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 11:06:32,211 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8f66d76-c6c6-4424-ad96-202192661a0a/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 11:06:32,236 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 11:06:32,236 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 11:06:32,236 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-13 11:06:32,236 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-13 11:06:32,236 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-12-13 11:06:32,236 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-12-13 11:06:32,236 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-12-13 11:06:32,237 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-12-13 11:06:32,237 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-12-13 11:06:32,237 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-12-13 11:06:32,237 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 11:06:32,237 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-12-13 11:06:32,237 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-12-13 11:06:32,237 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-12-13 11:06:32,237 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 11:06:32,237 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 11:06:32,237 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 11:06:32,239 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 11:06:32,328 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 11:06:32,329 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 11:06:32,695 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 11:06:32,754 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 11:06:32,754 INFO L300 CfgBuilder]: Removed 6 assume(true) statements. [2022-12-13 11:06:32,756 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 11:06:32 BoogieIcfgContainer [2022-12-13 11:06:32,756 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 11:06:32,758 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 11:06:32,758 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 11:06:32,760 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 11:06:32,761 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 11:06:31" (1/3) ... [2022-12-13 11:06:32,761 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e4fda04 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 11:06:32, skipping insertion in model container [2022-12-13 11:06:32,761 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:06:32" (2/3) ... [2022-12-13 11:06:32,761 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e4fda04 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 11:06:32, skipping insertion in model container [2022-12-13 11:06:32,762 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 11:06:32" (3/3) ... [2022-12-13 11:06:32,763 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-three-array-min.wvr.c [2022-12-13 11:06:32,770 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-12-13 11:06:32,778 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 11:06:32,778 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-13 11:06:32,778 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-13 11:06:32,829 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-12-13 11:06:32,859 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 298 places, 315 transitions, 654 flow [2022-12-13 11:06:32,935 INFO L130 PetriNetUnfolder]: 27/312 cut-off events. [2022-12-13 11:06:32,935 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-12-13 11:06:32,941 INFO L83 FinitePrefix]: Finished finitePrefix Result has 325 conditions, 312 events. 27/312 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 212 event pairs, 0 based on Foata normal form. 0/284 useless extension candidates. Maximal degree in co-relation 244. Up to 3 conditions per place. [2022-12-13 11:06:32,941 INFO L82 GeneralOperation]: Start removeDead. Operand has 298 places, 315 transitions, 654 flow [2022-12-13 11:06:32,947 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 284 places, 301 transitions, 620 flow [2022-12-13 11:06:32,950 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2022-12-13 11:06:32,959 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 284 places, 301 transitions, 620 flow [2022-12-13 11:06:32,961 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 284 places, 301 transitions, 620 flow [2022-12-13 11:06:32,962 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 284 places, 301 transitions, 620 flow [2022-12-13 11:06:33,013 INFO L130 PetriNetUnfolder]: 27/301 cut-off events. [2022-12-13 11:06:33,013 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-12-13 11:06:33,014 INFO L83 FinitePrefix]: Finished finitePrefix Result has 314 conditions, 301 events. 27/301 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 211 event pairs, 0 based on Foata normal form. 0/274 useless extension candidates. Maximal degree in co-relation 244. Up to 3 conditions per place. [2022-12-13 11:06:33,017 INFO L119 LiptonReduction]: Number of co-enabled transitions 2634 [2022-12-13 11:06:39,925 INFO L134 LiptonReduction]: Checked pairs total: 4309 [2022-12-13 11:06:39,925 INFO L136 LiptonReduction]: Total number of compositions: 324 [2022-12-13 11:06:39,935 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 11:06:39,940 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;@448ccc70, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 11:06:39,940 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-12-13 11:06:39,944 INFO L130 PetriNetUnfolder]: 8/34 cut-off events. [2022-12-13 11:06:39,944 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-12-13 11:06:39,945 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 11:06:39,945 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] [2022-12-13 11:06:39,945 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-13 11:06:39,949 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:06:39,949 INFO L85 PathProgramCache]: Analyzing trace with hash 1491257318, now seen corresponding path program 1 times [2022-12-13 11:06:39,955 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 11:06:39,955 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1915999396] [2022-12-13 11:06:39,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:06:39,956 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 11:06:40,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:06:40,279 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 11:06:40,280 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 11:06:40,280 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1915999396] [2022-12-13 11:06:40,280 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1915999396] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 11:06:40,281 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 11:06:40,281 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 11:06:40,282 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [902123585] [2022-12-13 11:06:40,283 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 11:06:40,291 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 11:06:40,291 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 11:06:40,312 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 11:06:40,313 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 11:06:40,366 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 276 out of 639 [2022-12-13 11:06:40,370 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 35 transitions, 88 flow. Second operand has 3 states, 3 states have (on average 282.3333333333333) internal successors, (847), 3 states have internal predecessors, (847), 0 states have call successors, (0), 0 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 11:06:40,370 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 11:06:40,370 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 276 of 639 [2022-12-13 11:06:40,371 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 11:06:40,542 INFO L130 PetriNetUnfolder]: 765/1028 cut-off events. [2022-12-13 11:06:40,542 INFO L131 PetriNetUnfolder]: For 35/35 co-relation queries the response was YES. [2022-12-13 11:06:40,544 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2110 conditions, 1028 events. 765/1028 cut-off events. For 35/35 co-relation queries the response was YES. Maximal size of possible extension queue 77. Compared 3613 event pairs, 352 based on Foata normal form. 0/594 useless extension candidates. Maximal degree in co-relation 1824. Up to 1002 conditions per place. [2022-12-13 11:06:40,550 INFO L137 encePairwiseOnDemand]: 636/639 looper letters, 31 selfloop transitions, 2 changer transitions 0/36 dead transitions. [2022-12-13 11:06:40,550 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 39 places, 36 transitions, 156 flow [2022-12-13 11:06:40,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 11:06:40,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 11:06:40,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 862 transitions. [2022-12-13 11:06:40,567 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.44966092853416795 [2022-12-13 11:06:40,568 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 862 transitions. [2022-12-13 11:06:40,568 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 862 transitions. [2022-12-13 11:06:40,571 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 11:06:40,573 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 862 transitions. [2022-12-13 11:06:40,578 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 287.3333333333333) internal successors, (862), 3 states have internal predecessors, (862), 0 states have call successors, (0), 0 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 11:06:40,586 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 639.0) internal successors, (2556), 4 states have internal predecessors, (2556), 0 states have call successors, (0), 0 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 11:06:40,588 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 639.0) internal successors, (2556), 4 states have internal predecessors, (2556), 0 states have call successors, (0), 0 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 11:06:40,590 INFO L175 Difference]: Start difference. First operand has 37 places, 35 transitions, 88 flow. Second operand 3 states and 862 transitions. [2022-12-13 11:06:40,591 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 39 places, 36 transitions, 156 flow [2022-12-13 11:06:40,595 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 33 places, 36 transitions, 144 flow, removed 0 selfloop flow, removed 6 redundant places. [2022-12-13 11:06:40,597 INFO L231 Difference]: Finished difference. Result has 34 places, 36 transitions, 88 flow [2022-12-13 11:06:40,599 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=639, PETRI_DIFFERENCE_MINUEND_FLOW=76, PETRI_DIFFERENCE_MINUEND_PLACES=31, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=88, PETRI_PLACES=34, PETRI_TRANSITIONS=36} [2022-12-13 11:06:40,602 INFO L288 CegarLoopForPetriNet]: 37 programPoint places, -3 predicate places. [2022-12-13 11:06:40,603 INFO L495 AbstractCegarLoop]: Abstraction has has 34 places, 36 transitions, 88 flow [2022-12-13 11:06:40,603 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 282.3333333333333) internal successors, (847), 3 states have internal predecessors, (847), 0 states have call successors, (0), 0 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 11:06:40,604 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 11:06:40,604 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] [2022-12-13 11:06:40,604 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 11:06:40,604 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-13 11:06:40,605 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:06:40,605 INFO L85 PathProgramCache]: Analyzing trace with hash -1110097203, now seen corresponding path program 1 times [2022-12-13 11:06:40,605 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 11:06:40,605 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2027730540] [2022-12-13 11:06:40,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:06:40,606 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 11:06:40,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:06:40,782 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-13 11:06:40,782 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 11:06:40,782 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2027730540] [2022-12-13 11:06:40,782 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2027730540] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 11:06:40,782 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 11:06:40,783 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 11:06:40,783 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [587082417] [2022-12-13 11:06:40,783 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 11:06:40,784 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 11:06:40,784 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 11:06:40,785 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 11:06:40,785 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 11:06:40,848 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 274 out of 639 [2022-12-13 11:06:40,850 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 36 transitions, 88 flow. Second operand has 4 states, 4 states have (on average 279.0) internal successors, (1116), 4 states have internal predecessors, (1116), 0 states have call successors, (0), 0 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 11:06:40,850 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 11:06:40,850 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 274 of 639 [2022-12-13 11:06:40,850 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 11:06:40,995 INFO L130 PetriNetUnfolder]: 765/1030 cut-off events. [2022-12-13 11:06:40,995 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-12-13 11:06:40,997 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2072 conditions, 1030 events. 765/1030 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 77. Compared 3642 event pairs, 352 based on Foata normal form. 0/596 useless extension candidates. Maximal degree in co-relation 2061. Up to 1001 conditions per place. [2022-12-13 11:06:40,999 INFO L137 encePairwiseOnDemand]: 632/639 looper letters, 29 selfloop transitions, 6 changer transitions 0/38 dead transitions. [2022-12-13 11:06:41,000 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 38 transitions, 162 flow [2022-12-13 11:06:41,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 11:06:41,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-13 11:06:41,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 1133 transitions. [2022-12-13 11:06:41,002 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.44327073552425666 [2022-12-13 11:06:41,002 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 1133 transitions. [2022-12-13 11:06:41,002 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 1133 transitions. [2022-12-13 11:06:41,003 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 11:06:41,003 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 1133 transitions. [2022-12-13 11:06:41,004 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 283.25) internal successors, (1133), 4 states have internal predecessors, (1133), 0 states have call successors, (0), 0 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 11:06:41,007 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 639.0) internal successors, (3195), 5 states have internal predecessors, (3195), 0 states have call successors, (0), 0 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 11:06:41,008 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 639.0) internal successors, (3195), 5 states have internal predecessors, (3195), 0 states have call successors, (0), 0 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 11:06:41,008 INFO L175 Difference]: Start difference. First operand has 34 places, 36 transitions, 88 flow. Second operand 4 states and 1133 transitions. [2022-12-13 11:06:41,008 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 38 transitions, 162 flow [2022-12-13 11:06:41,009 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 36 places, 38 transitions, 158 flow, removed 1 selfloop flow, removed 1 redundant places. [2022-12-13 11:06:41,009 INFO L231 Difference]: Finished difference. Result has 37 places, 38 transitions, 112 flow [2022-12-13 11:06:41,010 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=639, PETRI_DIFFERENCE_MINUEND_FLOW=84, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=112, PETRI_PLACES=37, PETRI_TRANSITIONS=38} [2022-12-13 11:06:41,010 INFO L288 CegarLoopForPetriNet]: 37 programPoint places, 0 predicate places. [2022-12-13 11:06:41,010 INFO L495 AbstractCegarLoop]: Abstraction has has 37 places, 38 transitions, 112 flow [2022-12-13 11:06:41,011 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 279.0) internal successors, (1116), 4 states have internal predecessors, (1116), 0 states have call successors, (0), 0 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 11:06:41,011 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 11:06:41,011 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] [2022-12-13 11:06:41,011 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-13 11:06:41,011 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-13 11:06:41,011 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:06:41,011 INFO L85 PathProgramCache]: Analyzing trace with hash -1620985194, now seen corresponding path program 1 times [2022-12-13 11:06:41,012 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 11:06:41,012 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [597149953] [2022-12-13 11:06:41,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:06:41,012 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 11:06:41,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:06:41,297 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-12-13 11:06:41,297 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 11:06:41,297 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [597149953] [2022-12-13 11:06:41,297 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [597149953] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 11:06:41,298 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 11:06:41,298 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 11:06:41,298 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2006238630] [2022-12-13 11:06:41,298 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 11:06:41,298 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 11:06:41,299 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 11:06:41,299 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 11:06:41,299 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 11:06:41,318 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 280 out of 639 [2022-12-13 11:06:41,320 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 38 transitions, 112 flow. Second operand has 3 states, 3 states have (on average 287.3333333333333) internal successors, (862), 3 states have internal predecessors, (862), 0 states have call successors, (0), 0 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 11:06:41,320 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 11:06:41,320 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 280 of 639 [2022-12-13 11:06:41,320 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 11:06:41,529 INFO L130 PetriNetUnfolder]: 1363/1808 cut-off events. [2022-12-13 11:06:41,529 INFO L131 PetriNetUnfolder]: For 15/15 co-relation queries the response was YES. [2022-12-13 11:06:41,530 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3661 conditions, 1808 events. 1363/1808 cut-off events. For 15/15 co-relation queries the response was YES. Maximal size of possible extension queue 136. Compared 7122 event pairs, 258 based on Foata normal form. 1/1076 useless extension candidates. Maximal degree in co-relation 3641. Up to 1165 conditions per place. [2022-12-13 11:06:41,534 INFO L137 encePairwiseOnDemand]: 634/639 looper letters, 52 selfloop transitions, 4 changer transitions 1/60 dead transitions. [2022-12-13 11:06:41,535 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 39 places, 60 transitions, 275 flow [2022-12-13 11:06:41,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 11:06:41,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 11:06:41,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 895 transitions. [2022-12-13 11:06:41,536 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4668753260302556 [2022-12-13 11:06:41,537 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 895 transitions. [2022-12-13 11:06:41,537 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 895 transitions. [2022-12-13 11:06:41,537 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 11:06:41,537 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 895 transitions. [2022-12-13 11:06:41,538 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 298.3333333333333) internal successors, (895), 3 states have internal predecessors, (895), 0 states have call successors, (0), 0 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 11:06:41,540 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 639.0) internal successors, (2556), 4 states have internal predecessors, (2556), 0 states have call successors, (0), 0 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 11:06:41,541 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 639.0) internal successors, (2556), 4 states have internal predecessors, (2556), 0 states have call successors, (0), 0 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 11:06:41,541 INFO L175 Difference]: Start difference. First operand has 37 places, 38 transitions, 112 flow. Second operand 3 states and 895 transitions. [2022-12-13 11:06:41,541 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 39 places, 60 transitions, 275 flow [2022-12-13 11:06:41,542 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 38 places, 60 transitions, 274 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-13 11:06:41,542 INFO L231 Difference]: Finished difference. Result has 39 places, 41 transitions, 137 flow [2022-12-13 11:06:41,542 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=639, PETRI_DIFFERENCE_MINUEND_FLOW=111, PETRI_DIFFERENCE_MINUEND_PLACES=36, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=137, PETRI_PLACES=39, PETRI_TRANSITIONS=41} [2022-12-13 11:06:41,543 INFO L288 CegarLoopForPetriNet]: 37 programPoint places, 2 predicate places. [2022-12-13 11:06:41,543 INFO L495 AbstractCegarLoop]: Abstraction has has 39 places, 41 transitions, 137 flow [2022-12-13 11:06:41,543 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 287.3333333333333) internal successors, (862), 3 states have internal predecessors, (862), 0 states have call successors, (0), 0 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 11:06:41,544 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 11:06:41,544 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] [2022-12-13 11:06:41,544 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-13 11:06:41,544 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-13 11:06:41,544 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:06:41,544 INFO L85 PathProgramCache]: Analyzing trace with hash 389943842, now seen corresponding path program 1 times [2022-12-13 11:06:41,544 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 11:06:41,544 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1123535570] [2022-12-13 11:06:41,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:06:41,545 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 11:06:41,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:06:41,672 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-13 11:06:41,673 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 11:06:41,673 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1123535570] [2022-12-13 11:06:41,673 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1123535570] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 11:06:41,673 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1402542683] [2022-12-13 11:06:41,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:06:41,674 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 11:06:41,674 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8f66d76-c6c6-4424-ad96-202192661a0a/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 11:06:41,675 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8f66d76-c6c6-4424-ad96-202192661a0a/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 11:06:41,676 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8f66d76-c6c6-4424-ad96-202192661a0a/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-13 11:06:41,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:06:41,783 INFO L263 TraceCheckSpWp]: Trace formula consists of 334 conjuncts, 7 conjunts are in the unsatisfiable core [2022-12-13 11:06:41,789 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 11:06:41,872 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-13 11:06:41,872 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 11:06:41,926 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-13 11:06:41,926 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1402542683] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 11:06:41,926 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 11:06:41,926 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2022-12-13 11:06:41,926 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1221621529] [2022-12-13 11:06:41,927 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 11:06:41,927 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-12-13 11:06:41,927 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 11:06:41,928 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-12-13 11:06:41,928 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=87, Unknown=0, NotChecked=0, Total=132 [2022-12-13 11:06:42,184 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 264 out of 639 [2022-12-13 11:06:42,188 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 39 places, 41 transitions, 137 flow. Second operand has 12 states, 12 states have (on average 266.9166666666667) internal successors, (3203), 12 states have internal predecessors, (3203), 0 states have call successors, (0), 0 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 11:06:42,188 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 11:06:42,188 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 264 of 639 [2022-12-13 11:06:42,188 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 11:06:42,767 INFO L130 PetriNetUnfolder]: 2869/4001 cut-off events. [2022-12-13 11:06:42,767 INFO L131 PetriNetUnfolder]: For 345/345 co-relation queries the response was YES. [2022-12-13 11:06:42,773 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8790 conditions, 4001 events. 2869/4001 cut-off events. For 345/345 co-relation queries the response was YES. Maximal size of possible extension queue 236. Compared 19487 event pairs, 921 based on Foata normal form. 0/2801 useless extension candidates. Maximal degree in co-relation 4938. Up to 1369 conditions per place. [2022-12-13 11:06:42,791 INFO L137 encePairwiseOnDemand]: 628/639 looper letters, 132 selfloop transitions, 21 changer transitions 0/155 dead transitions. [2022-12-13 11:06:42,791 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 155 transitions, 783 flow [2022-12-13 11:06:42,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-13 11:06:42,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-12-13 11:06:42,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 2784 transitions. [2022-12-13 11:06:42,799 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4356807511737089 [2022-12-13 11:06:42,799 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 2784 transitions. [2022-12-13 11:06:42,799 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 2784 transitions. [2022-12-13 11:06:42,801 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 11:06:42,801 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 2784 transitions. [2022-12-13 11:06:42,807 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 278.4) internal successors, (2784), 10 states have internal predecessors, (2784), 0 states have call successors, (0), 0 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 11:06:42,814 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 639.0) internal successors, (7029), 11 states have internal predecessors, (7029), 0 states have call successors, (0), 0 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 11:06:42,817 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 639.0) internal successors, (7029), 11 states have internal predecessors, (7029), 0 states have call successors, (0), 0 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 11:06:42,817 INFO L175 Difference]: Start difference. First operand has 39 places, 41 transitions, 137 flow. Second operand 10 states and 2784 transitions. [2022-12-13 11:06:42,817 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 155 transitions, 783 flow [2022-12-13 11:06:42,820 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 155 transitions, 769 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-13 11:06:42,836 INFO L231 Difference]: Finished difference. Result has 52 places, 56 transitions, 286 flow [2022-12-13 11:06:42,836 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=639, PETRI_DIFFERENCE_MINUEND_FLOW=133, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=286, PETRI_PLACES=52, PETRI_TRANSITIONS=56} [2022-12-13 11:06:42,837 INFO L288 CegarLoopForPetriNet]: 37 programPoint places, 15 predicate places. [2022-12-13 11:06:42,837 INFO L495 AbstractCegarLoop]: Abstraction has has 52 places, 56 transitions, 286 flow [2022-12-13 11:06:42,838 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 266.9166666666667) internal successors, (3203), 12 states have internal predecessors, (3203), 0 states have call successors, (0), 0 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 11:06:42,838 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 11:06:42,838 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] [2022-12-13 11:06:42,844 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8f66d76-c6c6-4424-ad96-202192661a0a/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-13 11:06:43,039 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8f66d76-c6c6-4424-ad96-202192661a0a/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 11:06:43,039 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-13 11:06:43,040 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:06:43,040 INFO L85 PathProgramCache]: Analyzing trace with hash 1424596093, now seen corresponding path program 1 times [2022-12-13 11:06:43,040 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 11:06:43,040 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1505313397] [2022-12-13 11:06:43,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:06:43,040 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 11:06:43,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:06:43,199 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-13 11:06:43,199 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 11:06:43,199 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1505313397] [2022-12-13 11:06:43,200 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1505313397] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 11:06:43,200 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [378840043] [2022-12-13 11:06:43,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:06:43,200 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 11:06:43,200 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8f66d76-c6c6-4424-ad96-202192661a0a/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 11:06:43,201 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8f66d76-c6c6-4424-ad96-202192661a0a/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 11:06:43,202 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8f66d76-c6c6-4424-ad96-202192661a0a/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-13 11:06:43,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:06:43,298 INFO L263 TraceCheckSpWp]: Trace formula consists of 334 conjuncts, 7 conjunts are in the unsatisfiable core [2022-12-13 11:06:43,300 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 11:06:43,345 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-13 11:06:43,345 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 11:06:43,393 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-13 11:06:43,393 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [378840043] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 11:06:43,394 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 11:06:43,394 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2022-12-13 11:06:43,394 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [185897497] [2022-12-13 11:06:43,394 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 11:06:43,395 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-12-13 11:06:43,395 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 11:06:43,395 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-12-13 11:06:43,395 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=88, Unknown=0, NotChecked=0, Total=132 [2022-12-13 11:06:43,757 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 264 out of 639 [2022-12-13 11:06:43,761 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 52 places, 56 transitions, 286 flow. Second operand has 12 states, 12 states have (on average 267.0) internal successors, (3204), 12 states have internal predecessors, (3204), 0 states have call successors, (0), 0 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 11:06:43,761 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 11:06:43,761 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 264 of 639 [2022-12-13 11:06:43,761 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 11:06:44,149 INFO L130 PetriNetUnfolder]: 1579/2226 cut-off events. [2022-12-13 11:06:44,149 INFO L131 PetriNetUnfolder]: For 569/618 co-relation queries the response was YES. [2022-12-13 11:06:44,153 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5650 conditions, 2226 events. 1579/2226 cut-off events. For 569/618 co-relation queries the response was YES. Maximal size of possible extension queue 142. Compared 9535 event pairs, 608 based on Foata normal form. 38/1615 useless extension candidates. Maximal degree in co-relation 4643. Up to 1281 conditions per place. [2022-12-13 11:06:44,161 INFO L137 encePairwiseOnDemand]: 628/639 looper letters, 44 selfloop transitions, 10 changer transitions 38/94 dead transitions. [2022-12-13 11:06:44,161 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 94 transitions, 585 flow [2022-12-13 11:06:44,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-13 11:06:44,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2022-12-13 11:06:44,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 2197 transitions. [2022-12-13 11:06:44,167 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.42977308294209704 [2022-12-13 11:06:44,167 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 2197 transitions. [2022-12-13 11:06:44,167 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 2197 transitions. [2022-12-13 11:06:44,169 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 11:06:44,169 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 2197 transitions. [2022-12-13 11:06:44,173 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 274.625) internal successors, (2197), 8 states have internal predecessors, (2197), 0 states have call successors, (0), 0 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 11:06:44,179 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 639.0) internal successors, (5751), 9 states have internal predecessors, (5751), 0 states have call successors, (0), 0 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 11:06:44,181 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 639.0) internal successors, (5751), 9 states have internal predecessors, (5751), 0 states have call successors, (0), 0 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 11:06:44,181 INFO L175 Difference]: Start difference. First operand has 52 places, 56 transitions, 286 flow. Second operand 8 states and 2197 transitions. [2022-12-13 11:06:44,182 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 94 transitions, 585 flow [2022-12-13 11:06:44,184 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 94 transitions, 563 flow, removed 5 selfloop flow, removed 1 redundant places. [2022-12-13 11:06:44,185 INFO L231 Difference]: Finished difference. Result has 60 places, 44 transitions, 214 flow [2022-12-13 11:06:44,186 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=639, PETRI_DIFFERENCE_MINUEND_FLOW=264, PETRI_DIFFERENCE_MINUEND_PLACES=51, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=56, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=46, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=214, PETRI_PLACES=60, PETRI_TRANSITIONS=44} [2022-12-13 11:06:44,186 INFO L288 CegarLoopForPetriNet]: 37 programPoint places, 23 predicate places. [2022-12-13 11:06:44,186 INFO L495 AbstractCegarLoop]: Abstraction has has 60 places, 44 transitions, 214 flow [2022-12-13 11:06:44,188 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 267.0) internal successors, (3204), 12 states have internal predecessors, (3204), 0 states have call successors, (0), 0 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 11:06:44,188 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 11:06:44,188 INFO L209 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 11:06:44,194 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8f66d76-c6c6-4424-ad96-202192661a0a/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-12-13 11:06:44,388 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8f66d76-c6c6-4424-ad96-202192661a0a/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 11:06:44,389 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-13 11:06:44,389 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:06:44,389 INFO L85 PathProgramCache]: Analyzing trace with hash -69865098, now seen corresponding path program 2 times [2022-12-13 11:06:44,389 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 11:06:44,389 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1330436908] [2022-12-13 11:06:44,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:06:44,389 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 11:06:44,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:06:44,526 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-12-13 11:06:44,526 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 11:06:44,526 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1330436908] [2022-12-13 11:06:44,526 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1330436908] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 11:06:44,526 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1500094036] [2022-12-13 11:06:44,527 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-12-13 11:06:44,527 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 11:06:44,527 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8f66d76-c6c6-4424-ad96-202192661a0a/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 11:06:44,528 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8f66d76-c6c6-4424-ad96-202192661a0a/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 11:06:44,529 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8f66d76-c6c6-4424-ad96-202192661a0a/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-12-13 11:06:44,635 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-12-13 11:06:44,636 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 11:06:44,637 INFO L263 TraceCheckSpWp]: Trace formula consists of 361 conjuncts, 7 conjunts are in the unsatisfiable core [2022-12-13 11:06:44,639 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 11:06:44,683 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-12-13 11:06:44,683 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 11:06:44,726 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-12-13 11:06:44,727 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1500094036] provided 1 perfect and 1 imperfect interpolant sequences [2022-12-13 11:06:44,727 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-12-13 11:06:44,727 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [6, 5] total 12 [2022-12-13 11:06:44,727 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [672908497] [2022-12-13 11:06:44,727 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 11:06:44,727 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 11:06:44,728 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 11:06:44,728 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 11:06:44,728 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-12-13 11:06:44,833 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 264 out of 639 [2022-12-13 11:06:44,834 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 44 transitions, 214 flow. Second operand has 6 states, 6 states have (on average 268.3333333333333) internal successors, (1610), 6 states have internal predecessors, (1610), 0 states have call successors, (0), 0 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 11:06:44,834 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 11:06:44,834 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 264 of 639 [2022-12-13 11:06:44,834 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 11:06:45,056 INFO L130 PetriNetUnfolder]: 1560/2140 cut-off events. [2022-12-13 11:06:45,057 INFO L131 PetriNetUnfolder]: For 855/881 co-relation queries the response was YES. [2022-12-13 11:06:45,060 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6027 conditions, 2140 events. 1560/2140 cut-off events. For 855/881 co-relation queries the response was YES. Maximal size of possible extension queue 152. Compared 8855 event pairs, 662 based on Foata normal form. 0/1690 useless extension candidates. Maximal degree in co-relation 6004. Up to 1592 conditions per place. [2022-12-13 11:06:45,066 INFO L137 encePairwiseOnDemand]: 634/639 looper letters, 57 selfloop transitions, 5 changer transitions 0/64 dead transitions. [2022-12-13 11:06:45,066 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 64 transitions, 409 flow [2022-12-13 11:06:45,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 11:06:45,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-13 11:06:45,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1637 transitions. [2022-12-13 11:06:45,069 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4269692227438706 [2022-12-13 11:06:45,069 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1637 transitions. [2022-12-13 11:06:45,069 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1637 transitions. [2022-12-13 11:06:45,070 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 11:06:45,070 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1637 transitions. [2022-12-13 11:06:45,072 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 272.8333333333333) internal successors, (1637), 6 states have internal predecessors, (1637), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:06:45,074 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 639.0) internal successors, (4473), 7 states have internal predecessors, (4473), 0 states have call successors, (0), 0 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 11:06:45,075 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 639.0) internal successors, (4473), 7 states have internal predecessors, (4473), 0 states have call successors, (0), 0 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 11:06:45,075 INFO L175 Difference]: Start difference. First operand has 60 places, 44 transitions, 214 flow. Second operand 6 states and 1637 transitions. [2022-12-13 11:06:45,075 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 64 transitions, 409 flow [2022-12-13 11:06:45,078 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 64 transitions, 357 flow, removed 16 selfloop flow, removed 8 redundant places. [2022-12-13 11:06:45,079 INFO L231 Difference]: Finished difference. Result has 50 places, 45 transitions, 193 flow [2022-12-13 11:06:45,079 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=639, PETRI_DIFFERENCE_MINUEND_FLOW=175, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=193, PETRI_PLACES=50, PETRI_TRANSITIONS=45} [2022-12-13 11:06:45,080 INFO L288 CegarLoopForPetriNet]: 37 programPoint places, 13 predicate places. [2022-12-13 11:06:45,080 INFO L495 AbstractCegarLoop]: Abstraction has has 50 places, 45 transitions, 193 flow [2022-12-13 11:06:45,080 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 268.3333333333333) internal successors, (1610), 6 states have internal predecessors, (1610), 0 states have call successors, (0), 0 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 11:06:45,080 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 11:06:45,080 INFO L209 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 11:06:45,086 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8f66d76-c6c6-4424-ad96-202192661a0a/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-12-13 11:06:45,281 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8f66d76-c6c6-4424-ad96-202192661a0a/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 11:06:45,281 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-13 11:06:45,281 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:06:45,282 INFO L85 PathProgramCache]: Analyzing trace with hash 1379061004, now seen corresponding path program 1 times [2022-12-13 11:06:45,282 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 11:06:45,282 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1632758950] [2022-12-13 11:06:45,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:06:45,282 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 11:06:45,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:06:45,481 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-12-13 11:06:45,481 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 11:06:45,481 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1632758950] [2022-12-13 11:06:45,481 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1632758950] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 11:06:45,482 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 11:06:45,482 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 11:06:45,482 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2012360779] [2022-12-13 11:06:45,482 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 11:06:45,482 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 11:06:45,482 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 11:06:45,483 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 11:06:45,483 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-12-13 11:06:45,522 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 280 out of 639 [2022-12-13 11:06:45,523 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 50 places, 45 transitions, 193 flow. Second operand has 5 states, 5 states have (on average 285.4) internal successors, (1427), 5 states have internal predecessors, (1427), 0 states have call successors, (0), 0 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 11:06:45,523 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 11:06:45,523 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 280 of 639 [2022-12-13 11:06:45,523 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 11:06:45,846 INFO L130 PetriNetUnfolder]: 2427/3290 cut-off events. [2022-12-13 11:06:45,847 INFO L131 PetriNetUnfolder]: For 1455/1455 co-relation queries the response was YES. [2022-12-13 11:06:45,850 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8492 conditions, 3290 events. 2427/3290 cut-off events. For 1455/1455 co-relation queries the response was YES. Maximal size of possible extension queue 204. Compared 14062 event pairs, 583 based on Foata normal form. 30/2670 useless extension candidates. Maximal degree in co-relation 8456. Up to 1418 conditions per place. [2022-12-13 11:06:45,869 INFO L137 encePairwiseOnDemand]: 634/639 looper letters, 78 selfloop transitions, 4 changer transitions 13/96 dead transitions. [2022-12-13 11:06:45,869 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 96 transitions, 540 flow [2022-12-13 11:06:45,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 11:06:45,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-13 11:06:45,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1481 transitions. [2022-12-13 11:06:45,871 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.46353677621283257 [2022-12-13 11:06:45,871 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1481 transitions. [2022-12-13 11:06:45,871 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1481 transitions. [2022-12-13 11:06:45,871 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 11:06:45,872 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1481 transitions. [2022-12-13 11:06:45,873 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 296.2) internal successors, (1481), 5 states have internal predecessors, (1481), 0 states have call successors, (0), 0 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 11:06:45,875 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 639.0) internal successors, (3834), 6 states have internal predecessors, (3834), 0 states have call successors, (0), 0 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 11:06:45,876 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 639.0) internal successors, (3834), 6 states have internal predecessors, (3834), 0 states have call successors, (0), 0 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 11:06:45,876 INFO L175 Difference]: Start difference. First operand has 50 places, 45 transitions, 193 flow. Second operand 5 states and 1481 transitions. [2022-12-13 11:06:45,876 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 96 transitions, 540 flow [2022-12-13 11:06:45,884 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 51 places, 96 transitions, 522 flow, removed 4 selfloop flow, removed 3 redundant places. [2022-12-13 11:06:45,885 INFO L231 Difference]: Finished difference. Result has 54 places, 47 transitions, 212 flow [2022-12-13 11:06:45,885 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=639, PETRI_DIFFERENCE_MINUEND_FLOW=183, PETRI_DIFFERENCE_MINUEND_PLACES=47, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=45, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=212, PETRI_PLACES=54, PETRI_TRANSITIONS=47} [2022-12-13 11:06:45,885 INFO L288 CegarLoopForPetriNet]: 37 programPoint places, 17 predicate places. [2022-12-13 11:06:45,885 INFO L495 AbstractCegarLoop]: Abstraction has has 54 places, 47 transitions, 212 flow [2022-12-13 11:06:45,886 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 285.4) internal successors, (1427), 5 states have internal predecessors, (1427), 0 states have call successors, (0), 0 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 11:06:45,886 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 11:06:45,886 INFO L209 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 11:06:45,886 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-13 11:06:45,887 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-13 11:06:45,887 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:06:45,887 INFO L85 PathProgramCache]: Analyzing trace with hash 540523594, now seen corresponding path program 2 times [2022-12-13 11:06:45,887 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 11:06:45,887 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1350874486] [2022-12-13 11:06:45,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:06:45,887 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 11:06:45,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:06:45,988 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-12-13 11:06:45,989 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 11:06:45,989 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1350874486] [2022-12-13 11:06:45,989 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1350874486] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 11:06:45,989 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2091231129] [2022-12-13 11:06:45,989 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-12-13 11:06:45,989 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 11:06:45,989 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8f66d76-c6c6-4424-ad96-202192661a0a/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 11:06:45,990 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8f66d76-c6c6-4424-ad96-202192661a0a/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 11:06:45,991 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8f66d76-c6c6-4424-ad96-202192661a0a/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-12-13 11:06:46,229 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-12-13 11:06:46,229 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 11:06:46,231 INFO L263 TraceCheckSpWp]: Trace formula consists of 386 conjuncts, 7 conjunts are in the unsatisfiable core [2022-12-13 11:06:46,233 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 11:06:46,287 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-12-13 11:06:46,287 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 11:06:46,336 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-12-13 11:06:46,336 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2091231129] provided 1 perfect and 1 imperfect interpolant sequences [2022-12-13 11:06:46,336 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-12-13 11:06:46,336 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5, 5] total 11 [2022-12-13 11:06:46,336 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [772908738] [2022-12-13 11:06:46,336 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 11:06:46,337 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 11:06:46,337 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 11:06:46,337 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 11:06:46,337 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2022-12-13 11:06:46,487 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 264 out of 639 [2022-12-13 11:06:46,489 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 47 transitions, 212 flow. Second operand has 6 states, 6 states have (on average 268.5) internal successors, (1611), 6 states have internal predecessors, (1611), 0 states have call successors, (0), 0 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 11:06:46,489 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 11:06:46,489 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 264 of 639 [2022-12-13 11:06:46,489 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 11:06:46,706 INFO L130 PetriNetUnfolder]: 1540/2074 cut-off events. [2022-12-13 11:06:46,706 INFO L131 PetriNetUnfolder]: For 1277/1435 co-relation queries the response was YES. [2022-12-13 11:06:46,708 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5473 conditions, 2074 events. 1540/2074 cut-off events. For 1277/1435 co-relation queries the response was YES. Maximal size of possible extension queue 133. Compared 7783 event pairs, 478 based on Foata normal form. 209/1838 useless extension candidates. Maximal degree in co-relation 5437. Up to 1509 conditions per place. [2022-12-13 11:06:46,713 INFO L137 encePairwiseOnDemand]: 632/639 looper letters, 50 selfloop transitions, 9 changer transitions 0/61 dead transitions. [2022-12-13 11:06:46,713 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 61 transitions, 366 flow [2022-12-13 11:06:46,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 11:06:46,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-13 11:06:46,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1633 transitions. [2022-12-13 11:06:46,715 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.42592592592592593 [2022-12-13 11:06:46,715 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1633 transitions. [2022-12-13 11:06:46,716 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1633 transitions. [2022-12-13 11:06:46,716 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 11:06:46,716 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1633 transitions. [2022-12-13 11:06:46,718 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 272.1666666666667) internal successors, (1633), 6 states have internal predecessors, (1633), 0 states have call successors, (0), 0 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 11:06:46,720 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 639.0) internal successors, (4473), 7 states have internal predecessors, (4473), 0 states have call successors, (0), 0 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 11:06:46,721 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 639.0) internal successors, (4473), 7 states have internal predecessors, (4473), 0 states have call successors, (0), 0 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 11:06:46,721 INFO L175 Difference]: Start difference. First operand has 54 places, 47 transitions, 212 flow. Second operand 6 states and 1633 transitions. [2022-12-13 11:06:46,721 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 61 transitions, 366 flow [2022-12-13 11:06:46,725 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 61 transitions, 355 flow, removed 4 selfloop flow, removed 3 redundant places. [2022-12-13 11:06:46,726 INFO L231 Difference]: Finished difference. Result has 55 places, 48 transitions, 228 flow [2022-12-13 11:06:46,726 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=639, PETRI_DIFFERENCE_MINUEND_FLOW=195, PETRI_DIFFERENCE_MINUEND_PLACES=49, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=228, PETRI_PLACES=55, PETRI_TRANSITIONS=48} [2022-12-13 11:06:46,726 INFO L288 CegarLoopForPetriNet]: 37 programPoint places, 18 predicate places. [2022-12-13 11:06:46,726 INFO L495 AbstractCegarLoop]: Abstraction has has 55 places, 48 transitions, 228 flow [2022-12-13 11:06:46,727 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 268.5) internal successors, (1611), 6 states have internal predecessors, (1611), 0 states have call successors, (0), 0 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 11:06:46,727 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 11:06:46,727 INFO L209 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 11:06:46,733 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8f66d76-c6c6-4424-ad96-202192661a0a/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-12-13 11:06:46,927 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8f66d76-c6c6-4424-ad96-202192661a0a/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2022-12-13 11:06:46,929 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-13 11:06:46,929 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:06:46,929 INFO L85 PathProgramCache]: Analyzing trace with hash 719615403, now seen corresponding path program 1 times [2022-12-13 11:06:46,930 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 11:06:46,930 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [74899768] [2022-12-13 11:06:46,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:06:46,930 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 11:06:46,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:06:47,105 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-12-13 11:06:47,105 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 11:06:47,105 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [74899768] [2022-12-13 11:06:47,105 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [74899768] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 11:06:47,105 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 11:06:47,105 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 11:06:47,106 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1162144581] [2022-12-13 11:06:47,106 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 11:06:47,106 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 11:06:47,106 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 11:06:47,106 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 11:06:47,107 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-12-13 11:06:47,152 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 278 out of 639 [2022-12-13 11:06:47,153 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 55 places, 48 transitions, 228 flow. Second operand has 5 states, 5 states have (on average 283.6) internal successors, (1418), 5 states have internal predecessors, (1418), 0 states have call successors, (0), 0 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 11:06:47,153 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 11:06:47,153 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 278 of 639 [2022-12-13 11:06:47,154 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 11:06:47,497 INFO L130 PetriNetUnfolder]: 2212/3038 cut-off events. [2022-12-13 11:06:47,497 INFO L131 PetriNetUnfolder]: For 2248/2498 co-relation queries the response was YES. [2022-12-13 11:06:47,500 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8300 conditions, 3038 events. 2212/3038 cut-off events. For 2248/2498 co-relation queries the response was YES. Maximal size of possible extension queue 153. Compared 12271 event pairs, 688 based on Foata normal form. 286/2727 useless extension candidates. Maximal degree in co-relation 8262. Up to 1606 conditions per place. [2022-12-13 11:06:47,505 INFO L137 encePairwiseOnDemand]: 630/639 looper letters, 86 selfloop transitions, 13 changer transitions 0/100 dead transitions. [2022-12-13 11:06:47,506 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 100 transitions, 625 flow [2022-12-13 11:06:47,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 11:06:47,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-13 11:06:47,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1467 transitions. [2022-12-13 11:06:47,508 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4591549295774648 [2022-12-13 11:06:47,508 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1467 transitions. [2022-12-13 11:06:47,508 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1467 transitions. [2022-12-13 11:06:47,508 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 11:06:47,508 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1467 transitions. [2022-12-13 11:06:47,510 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 293.4) internal successors, (1467), 5 states have internal predecessors, (1467), 0 states have call successors, (0), 0 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 11:06:47,511 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 639.0) internal successors, (3834), 6 states have internal predecessors, (3834), 0 states have call successors, (0), 0 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 11:06:47,512 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 639.0) internal successors, (3834), 6 states have internal predecessors, (3834), 0 states have call successors, (0), 0 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 11:06:47,512 INFO L175 Difference]: Start difference. First operand has 55 places, 48 transitions, 228 flow. Second operand 5 states and 1467 transitions. [2022-12-13 11:06:47,512 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 100 transitions, 625 flow [2022-12-13 11:06:47,518 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 100 transitions, 606 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-12-13 11:06:47,519 INFO L231 Difference]: Finished difference. Result has 58 places, 59 transitions, 331 flow [2022-12-13 11:06:47,519 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=639, PETRI_DIFFERENCE_MINUEND_FLOW=217, PETRI_DIFFERENCE_MINUEND_PLACES=51, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=48, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=331, PETRI_PLACES=58, PETRI_TRANSITIONS=59} [2022-12-13 11:06:47,519 INFO L288 CegarLoopForPetriNet]: 37 programPoint places, 21 predicate places. [2022-12-13 11:06:47,519 INFO L495 AbstractCegarLoop]: Abstraction has has 58 places, 59 transitions, 331 flow [2022-12-13 11:06:47,520 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 283.6) internal successors, (1418), 5 states have internal predecessors, (1418), 0 states have call successors, (0), 0 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 11:06:47,520 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 11:06:47,520 INFO L209 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 11:06:47,520 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-12-13 11:06:47,520 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-13 11:06:47,520 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:06:47,520 INFO L85 PathProgramCache]: Analyzing trace with hash 1923590419, now seen corresponding path program 2 times [2022-12-13 11:06:47,520 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 11:06:47,520 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1596651950] [2022-12-13 11:06:47,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:06:47,521 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 11:06:47,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:06:47,636 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-12-13 11:06:47,636 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 11:06:47,636 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1596651950] [2022-12-13 11:06:47,636 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1596651950] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 11:06:47,637 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1445836416] [2022-12-13 11:06:47,637 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-12-13 11:06:47,637 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 11:06:47,637 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8f66d76-c6c6-4424-ad96-202192661a0a/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 11:06:47,638 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8f66d76-c6c6-4424-ad96-202192661a0a/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 11:06:47,638 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8f66d76-c6c6-4424-ad96-202192661a0a/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-12-13 11:06:47,753 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-12-13 11:06:47,753 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 11:06:47,755 INFO L263 TraceCheckSpWp]: Trace formula consists of 386 conjuncts, 7 conjunts are in the unsatisfiable core [2022-12-13 11:06:47,756 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 11:06:47,803 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-12-13 11:06:47,803 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 11:06:47,857 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-12-13 11:06:47,857 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1445836416] provided 1 perfect and 1 imperfect interpolant sequences [2022-12-13 11:06:47,857 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-12-13 11:06:47,857 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [6, 5] total 12 [2022-12-13 11:06:47,857 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1668883848] [2022-12-13 11:06:47,858 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 11:06:47,858 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 11:06:47,858 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 11:06:47,858 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 11:06:47,858 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-12-13 11:06:47,958 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 264 out of 639 [2022-12-13 11:06:47,959 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 59 transitions, 331 flow. Second operand has 6 states, 6 states have (on average 268.6666666666667) internal successors, (1612), 6 states have internal predecessors, (1612), 0 states have call successors, (0), 0 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 11:06:47,959 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 11:06:47,959 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 264 of 639 [2022-12-13 11:06:47,959 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 11:06:48,260 INFO L130 PetriNetUnfolder]: 2098/2848 cut-off events. [2022-12-13 11:06:48,260 INFO L131 PetriNetUnfolder]: For 2661/2944 co-relation queries the response was YES. [2022-12-13 11:06:48,264 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8831 conditions, 2848 events. 2098/2848 cut-off events. For 2661/2944 co-relation queries the response was YES. Maximal size of possible extension queue 129. Compared 11123 event pairs, 529 based on Foata normal form. 443/2656 useless extension candidates. Maximal degree in co-relation 8792. Up to 1666 conditions per place. [2022-12-13 11:06:48,271 INFO L137 encePairwiseOnDemand]: 632/639 looper letters, 66 selfloop transitions, 12 changer transitions 0/81 dead transitions. [2022-12-13 11:06:48,271 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 81 transitions, 583 flow [2022-12-13 11:06:48,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 11:06:48,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-13 11:06:48,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1636 transitions. [2022-12-13 11:06:48,273 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.42670839853938447 [2022-12-13 11:06:48,273 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1636 transitions. [2022-12-13 11:06:48,273 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1636 transitions. [2022-12-13 11:06:48,274 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 11:06:48,274 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1636 transitions. [2022-12-13 11:06:48,275 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 272.6666666666667) internal successors, (1636), 6 states have internal predecessors, (1636), 0 states have call successors, (0), 0 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 11:06:48,278 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 639.0) internal successors, (4473), 7 states have internal predecessors, (4473), 0 states have call successors, (0), 0 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 11:06:48,278 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 639.0) internal successors, (4473), 7 states have internal predecessors, (4473), 0 states have call successors, (0), 0 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 11:06:48,278 INFO L175 Difference]: Start difference. First operand has 58 places, 59 transitions, 331 flow. Second operand 6 states and 1636 transitions. [2022-12-13 11:06:48,278 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 81 transitions, 583 flow [2022-12-13 11:06:48,284 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 63 places, 81 transitions, 579 flow, removed 2 selfloop flow, removed 0 redundant places. [2022-12-13 11:06:48,285 INFO L231 Difference]: Finished difference. Result has 65 places, 61 transitions, 384 flow [2022-12-13 11:06:48,285 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=639, PETRI_DIFFERENCE_MINUEND_FLOW=327, PETRI_DIFFERENCE_MINUEND_PLACES=58, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=59, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=47, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=384, PETRI_PLACES=65, PETRI_TRANSITIONS=61} [2022-12-13 11:06:48,285 INFO L288 CegarLoopForPetriNet]: 37 programPoint places, 28 predicate places. [2022-12-13 11:06:48,285 INFO L495 AbstractCegarLoop]: Abstraction has has 65 places, 61 transitions, 384 flow [2022-12-13 11:06:48,286 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 268.6666666666667) internal successors, (1612), 6 states have internal predecessors, (1612), 0 states have call successors, (0), 0 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 11:06:48,286 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 11:06:48,286 INFO L209 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 11:06:48,291 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8f66d76-c6c6-4424-ad96-202192661a0a/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2022-12-13 11:06:48,487 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8f66d76-c6c6-4424-ad96-202192661a0a/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 11:06:48,488 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-13 11:06:48,489 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:06:48,489 INFO L85 PathProgramCache]: Analyzing trace with hash -107963151, now seen corresponding path program 1 times [2022-12-13 11:06:48,489 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 11:06:48,490 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1416630963] [2022-12-13 11:06:48,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:06:48,491 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 11:06:48,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:06:50,204 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-12-13 11:06:50,204 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 11:06:50,204 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1416630963] [2022-12-13 11:06:50,204 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1416630963] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 11:06:50,204 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [188459968] [2022-12-13 11:06:50,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:06:50,204 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 11:06:50,204 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8f66d76-c6c6-4424-ad96-202192661a0a/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 11:06:50,205 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8f66d76-c6c6-4424-ad96-202192661a0a/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 11:06:50,206 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8f66d76-c6c6-4424-ad96-202192661a0a/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-12-13 11:06:50,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:06:50,322 INFO L263 TraceCheckSpWp]: Trace formula consists of 393 conjuncts, 73 conjunts are in the unsatisfiable core [2022-12-13 11:06:50,326 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 11:06:50,403 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-12-13 11:06:50,475 INFO L321 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-12-13 11:06:50,475 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2022-12-13 11:06:50,590 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-13 11:06:50,590 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 20 [2022-12-13 11:06:50,884 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 11:06:50,885 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 20 [2022-12-13 11:06:51,076 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-13 11:06:51,078 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-13 11:06:51,091 INFO L321 Elim1Store]: treesize reduction 31, result has 40.4 percent of original size [2022-12-13 11:06:51,091 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 4 case distinctions, treesize of input 38 treesize of output 48 [2022-12-13 11:06:51,481 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 11:06:51,482 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 11:06:51,510 INFO L321 Elim1Store]: treesize reduction 52, result has 34.2 percent of original size [2022-12-13 11:06:51,511 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 7 case distinctions, treesize of input 134 treesize of output 147 [2022-12-13 11:06:53,478 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-13 11:06:53,478 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 12 select indices, 12 select index equivalence classes, 0 disjoint index pairs (out of 66 index pairs), introduced 12 new quantified variables, introduced 66 case distinctions, treesize of input 296 treesize of output 760 [2022-12-13 11:06:57,614 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 17 [2022-12-13 11:06:58,738 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 16 [2022-12-13 11:06:59,637 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 16 [2022-12-13 11:07:02,897 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 17 [2022-12-13 11:07:03,008 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 17 [2022-12-13 11:07:03,805 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 19 [2022-12-13 11:07:03,877 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 19 [2022-12-13 11:07:03,922 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 17 [2022-12-13 11:07:04,351 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 19 [2022-12-13 11:07:04,630 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 20 [2022-12-13 11:07:04,765 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 20 [2022-12-13 11:07:04,803 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 19 [2022-12-13 11:07:04,808 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 23 [2022-12-13 11:07:04,828 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 19 [2022-12-13 11:07:04,833 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 18 [2022-12-13 11:07:04,839 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 15 [2022-12-13 11:07:04,845 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 46 [2022-12-13 11:07:04,849 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 34 [2022-12-13 11:07:04,856 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 120 treesize of output 88 [2022-12-13 11:07:04,879 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-12-13 11:07:04,879 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 11:07:05,241 WARN L837 $PredicateComparison]: unable to prove that (or (<= |c_thread1Thread1of1ForFork2_#t~mem2| c_~mina~0) (let ((.cse4 (+ (* c_thread1Thread1of1ForFork2_~i~0 4) c_~B~0.offset))) (let ((.cse2 (+ c_~C~0.offset 4)) (.cse0 (<= (select (select |c_#memory_int| c_~B~0.base) .cse4) c_~minb~0))) (and (or .cse0 (let ((.cse1 (+ c_~mina~0 c_~minb~0))) (and (<= .cse1 c_~minc~0) (forall ((v_ArrVal_581 (Array Int Int))) (<= .cse1 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_581) c_~C~0.base) .cse2)))))) (or (and (forall ((v_ArrVal_581 (Array Int Int))) (let ((.cse3 (store |c_#memory_int| |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_581))) (<= (+ (select (select .cse3 c_~B~0.base) .cse4) c_~mina~0) (select (select .cse3 c_~C~0.base) .cse2)))) (forall ((v_ArrVal_581 (Array Int Int))) (<= (+ (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_581) c_~B~0.base) .cse4) c_~mina~0) c_~minc~0))) (not .cse0)))))) is different from false [2022-12-13 11:07:13,415 WARN L233 SmtUtils]: Spent 5.30s on a formula simplification that was a NOOP. DAG size: 66 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-13 11:07:13,522 WARN L837 $PredicateComparison]: unable to prove that (or (<= |c_thread1Thread1of1ForFork2_#t~mem2| c_~mina~0) (let ((.cse11 (+ c_~mina~0 c_~minb~0)) (.cse1 (+ 4 c_~B~0.offset)) (.cse2 (+ c_~A~0.offset 4)) (.cse4 (+ (* c_thread1Thread1of1ForFork2_~i~0 4) c_~B~0.offset))) (and (forall ((v_ArrVal_578 (Array Int Int)) (v_ArrVal_579 Int)) (let ((.cse0 (store |c_#memory_int| |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_578))) (or (< v_ArrVal_579 (+ (select (select .cse0 c_~B~0.base) .cse1) (select (select .cse0 c_~A~0.base) .cse2))) (forall ((~C~0.offset Int)) (let ((.cse6 (+ ~C~0.offset 4))) (let ((.cse3 (store .cse0 c_~C~0.base (store (select .cse0 c_~C~0.base) .cse6 v_ArrVal_579)))) (or (not (<= (select (select .cse3 c_~B~0.base) .cse4) c_~minb~0)) (forall ((v_ArrVal_581 (Array Int Int))) (let ((.cse5 (store .cse3 |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_581))) (<= (+ c_~mina~0 (select (select .cse5 c_~B~0.base) .cse4)) (select (select .cse5 c_~C~0.base) .cse6))))))))))) (forall ((v_ArrVal_578 (Array Int Int)) (v_ArrVal_579 Int)) (let ((.cse8 (store |c_#memory_int| |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_578))) (or (forall ((~C~0.offset Int)) (let ((.cse7 (store .cse8 c_~C~0.base (store (select .cse8 c_~C~0.base) (+ ~C~0.offset 4) v_ArrVal_579)))) (or (forall ((v_ArrVal_581 (Array Int Int))) (<= (+ c_~mina~0 (select (select (store .cse7 |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_581) c_~B~0.base) .cse4)) c_~minc~0)) (not (<= (select (select .cse7 c_~B~0.base) .cse4) c_~minb~0))))) (< v_ArrVal_579 (+ (select (select .cse8 c_~B~0.base) .cse1) (select (select .cse8 c_~A~0.base) .cse2)))))) (forall ((v_ArrVal_578 (Array Int Int)) (v_ArrVal_579 Int)) (let ((.cse9 (store |c_#memory_int| |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_578))) (or (< v_ArrVal_579 (+ (select (select .cse9 c_~B~0.base) .cse1) (select (select .cse9 c_~A~0.base) .cse2))) (forall ((~C~0.offset Int)) (let ((.cse12 (+ ~C~0.offset 4))) (let ((.cse10 (store .cse9 c_~C~0.base (store (select .cse9 c_~C~0.base) .cse12 v_ArrVal_579)))) (or (<= (select (select .cse10 c_~B~0.base) .cse4) c_~minb~0) (forall ((v_ArrVal_581 (Array Int Int))) (<= .cse11 (select (select (store .cse10 |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_581) c_~C~0.base) .cse12)))))))))) (or (<= .cse11 c_~minc~0) (forall ((v_ArrVal_578 (Array Int Int)) (~C~0.offset Int) (v_ArrVal_579 Int)) (let ((.cse13 (store |c_#memory_int| |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_578))) (or (< v_ArrVal_579 (+ (select (select .cse13 c_~B~0.base) .cse1) (select (select .cse13 c_~A~0.base) .cse2))) (<= (select (select (store .cse13 c_~C~0.base (store (select .cse13 c_~C~0.base) (+ ~C~0.offset 4) v_ArrVal_579)) c_~B~0.base) .cse4) c_~minb~0)))))))) is different from false [2022-12-13 11:07:13,608 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-13 11:07:13,609 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 6733 treesize of output 6609 [2022-12-13 11:07:13,664 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6573 treesize of output 6333 [2022-12-13 11:07:13,749 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-13 11:07:13,750 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 6769 treesize of output 6582 [2022-12-13 11:07:13,862 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-13 11:07:13,863 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 6589 treesize of output 6582 [2022-12-13 11:07:13,988 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-13 11:07:13,989 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 6589 treesize of output 6582 [2022-12-13 11:07:14,072 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6549 treesize of output 6541 [2022-12-13 11:07:14,165 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-13 11:07:14,166 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 6541 treesize of output 5836 [2022-12-13 11:07:14,280 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-13 11:07:14,281 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 6577 treesize of output 6252