./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/weaver/chl-exp-term-subst.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 0e0057cc 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_869d3727-efd5-4402-92fc-8c7c1e39f018/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_869d3727-efd5-4402-92fc-8c7c1e39f018/bin/uautomizer-verify-BQ2R08f2Ya/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_869d3727-efd5-4402-92fc-8c7c1e39f018/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_869d3727-efd5-4402-92fc-8c7c1e39f018/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/chl-exp-term-subst.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_869d3727-efd5-4402-92fc-8c7c1e39f018/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_869d3727-efd5-4402-92fc-8c7c1e39f018/bin/uautomizer-verify-BQ2R08f2Ya --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 2a508120cc7913f10b79dda7ca65a8b88f829725798d520aee5d1c1d04a1fc13 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-29 06:31:22,891 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 06:31:22,958 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_869d3727-efd5-4402-92fc-8c7c1e39f018/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-11-29 06:31:22,962 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-29 06:31:22,963 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-29 06:31:22,989 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 06:31:22,989 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-29 06:31:22,990 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-29 06:31:22,991 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-29 06:31:22,991 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-29 06:31:22,992 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-29 06:31:22,992 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-29 06:31:22,993 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 06:31:22,994 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 06:31:22,994 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 06:31:22,995 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 06:31:22,995 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-29 06:31:22,996 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-29 06:31:22,996 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-29 06:31:22,996 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-29 06:31:22,997 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 06:31:22,998 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-29 06:31:22,998 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-29 06:31:22,998 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-29 06:31:22,999 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-29 06:31:22,999 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-29 06:31:23,000 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-29 06:31:23,000 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-29 06:31:23,000 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 06:31:23,001 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 06:31:23,001 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 06:31:23,002 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-29 06:31:23,002 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-29 06:31:23,002 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 06:31:23,002 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 06:31:23,003 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-29 06:31:23,003 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-29 06:31:23,003 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-29 06:31:23,003 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-29 06:31:23,003 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-29 06:31:23,004 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-29 06:31:23,004 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-29 06:31:23,004 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-29 06:31:23,004 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-29 06:31:23,005 INFO L153 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_869d3727-efd5-4402-92fc-8c7c1e39f018/bin/uautomizer-verify-BQ2R08f2Ya/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_869d3727-efd5-4402-92fc-8c7c1e39f018/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2a508120cc7913f10b79dda7ca65a8b88f829725798d520aee5d1c1d04a1fc13 [2023-11-29 06:31:23,234 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-29 06:31:23,253 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-29 06:31:23,256 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-29 06:31:23,257 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-29 06:31:23,257 INFO L274 PluginConnector]: CDTParser initialized [2023-11-29 06:31:23,259 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_869d3727-efd5-4402-92fc-8c7c1e39f018/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/weaver/chl-exp-term-subst.wvr.c [2023-11-29 06:31:25,964 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-29 06:31:26,135 INFO L384 CDTParser]: Found 1 translation units. [2023-11-29 06:31:26,135 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_869d3727-efd5-4402-92fc-8c7c1e39f018/sv-benchmarks/c/weaver/chl-exp-term-subst.wvr.c [2023-11-29 06:31:26,142 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_869d3727-efd5-4402-92fc-8c7c1e39f018/bin/uautomizer-verify-BQ2R08f2Ya/data/bf8b6d3f9/3f9963cd1b694ff1847424e72ae68797/FLAG0973856e0 [2023-11-29 06:31:26,152 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_869d3727-efd5-4402-92fc-8c7c1e39f018/bin/uautomizer-verify-BQ2R08f2Ya/data/bf8b6d3f9/3f9963cd1b694ff1847424e72ae68797 [2023-11-29 06:31:26,155 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-29 06:31:26,156 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-29 06:31:26,158 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-29 06:31:26,158 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-29 06:31:26,163 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-29 06:31:26,163 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 06:31:26" (1/1) ... [2023-11-29 06:31:26,164 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@143deadf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:31:26, skipping insertion in model container [2023-11-29 06:31:26,164 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 06:31:26" (1/1) ... [2023-11-29 06:31:26,189 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 06:31:26,349 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 06:31:26,359 INFO L202 MainTranslator]: Completed pre-run [2023-11-29 06:31:26,385 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 06:31:26,401 INFO L206 MainTranslator]: Completed translation [2023-11-29 06:31:26,401 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:31:26 WrapperNode [2023-11-29 06:31:26,401 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-29 06:31:26,402 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-29 06:31:26,403 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-29 06:31:26,403 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-29 06:31:26,411 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:31:26" (1/1) ... [2023-11-29 06:31:26,419 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:31:26" (1/1) ... [2023-11-29 06:31:26,445 INFO L138 Inliner]: procedures = 23, calls = 32, calls flagged for inlining = 10, calls inlined = 14, statements flattened = 228 [2023-11-29 06:31:26,445 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-29 06:31:26,446 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-29 06:31:26,446 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-29 06:31:26,446 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-29 06:31:26,458 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:31:26" (1/1) ... [2023-11-29 06:31:26,458 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:31:26" (1/1) ... [2023-11-29 06:31:26,462 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:31:26" (1/1) ... [2023-11-29 06:31:26,481 INFO L175 MemorySlicer]: Split 8 memory accesses to 4 slices as follows [2, 2, 2, 2]. 25 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0, 0]. The 3 writes are split as follows [0, 1, 1, 1]. [2023-11-29 06:31:26,482 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:31:26" (1/1) ... [2023-11-29 06:31:26,482 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:31:26" (1/1) ... [2023-11-29 06:31:26,491 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:31:26" (1/1) ... [2023-11-29 06:31:26,494 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:31:26" (1/1) ... [2023-11-29 06:31:26,497 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:31:26" (1/1) ... [2023-11-29 06:31:26,499 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:31:26" (1/1) ... [2023-11-29 06:31:26,503 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-29 06:31:26,504 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-29 06:31:26,504 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-29 06:31:26,504 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-29 06:31:26,505 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:31:26" (1/1) ... [2023-11-29 06:31:26,512 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 06:31:26,524 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_869d3727-efd5-4402-92fc-8c7c1e39f018/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:31:26,537 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_869d3727-efd5-4402-92fc-8c7c1e39f018/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-29 06:31:26,543 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_869d3727-efd5-4402-92fc-8c7c1e39f018/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-29 06:31:26,573 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-29 06:31:26,574 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-11-29 06:31:26,574 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-11-29 06:31:26,574 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-11-29 06:31:26,574 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-11-29 06:31:26,574 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-11-29 06:31:26,574 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-11-29 06:31:26,575 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-29 06:31:26,575 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-11-29 06:31:26,575 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2023-11-29 06:31:26,575 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2023-11-29 06:31:26,575 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-29 06:31:26,575 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2023-11-29 06:31:26,575 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2023-11-29 06:31:26,576 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2023-11-29 06:31:26,576 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2023-11-29 06:31:26,576 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-29 06:31:26,576 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-29 06:31:26,576 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2023-11-29 06:31:26,576 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2023-11-29 06:31:26,577 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2023-11-29 06:31:26,577 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2023-11-29 06:31:26,577 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-29 06:31:26,579 WARN L213 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-29 06:31:26,703 INFO L241 CfgBuilder]: Building ICFG [2023-11-29 06:31:26,705 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-29 06:31:27,062 INFO L282 CfgBuilder]: Performing block encoding [2023-11-29 06:31:27,287 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-29 06:31:27,287 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-29 06:31:27,287 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 06:31:27 BoogieIcfgContainer [2023-11-29 06:31:27,287 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-29 06:31:27,290 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-29 06:31:27,290 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-29 06:31:27,294 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-29 06:31:27,294 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 06:31:26" (1/3) ... [2023-11-29 06:31:27,295 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1763a52d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 06:31:27, skipping insertion in model container [2023-11-29 06:31:27,295 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:31:26" (2/3) ... [2023-11-29 06:31:27,295 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1763a52d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 06:31:27, skipping insertion in model container [2023-11-29 06:31:27,295 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 06:31:27" (3/3) ... [2023-11-29 06:31:27,297 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-exp-term-subst.wvr.c [2023-11-29 06:31:27,306 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-29 06:31:27,317 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-29 06:31:27,318 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 18 error locations. [2023-11-29 06:31:27,318 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-29 06:31:27,400 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2023-11-29 06:31:27,439 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 95 places, 100 transitions, 221 flow [2023-11-29 06:31:27,486 INFO L124 PetriNetUnfolderBase]: 15/97 cut-off events. [2023-11-29 06:31:27,487 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-11-29 06:31:27,492 INFO L83 FinitePrefix]: Finished finitePrefix Result has 110 conditions, 97 events. 15/97 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 351 event pairs, 0 based on Foata normal form. 0/64 useless extension candidates. Maximal degree in co-relation 93. Up to 2 conditions per place. [2023-11-29 06:31:27,492 INFO L82 GeneralOperation]: Start removeDead. Operand has 95 places, 100 transitions, 221 flow [2023-11-29 06:31:27,498 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 90 places, 95 transitions, 205 flow [2023-11-29 06:31:27,509 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-29 06:31:27,516 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=LoopHeads, 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;@26cbacc3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-29 06:31:27,516 INFO L358 AbstractCegarLoop]: Starting to check reachability of 39 error locations. [2023-11-29 06:31:27,527 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-29 06:31:27,528 INFO L124 PetriNetUnfolderBase]: 3/28 cut-off events. [2023-11-29 06:31:27,528 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-11-29 06:31:27,528 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 06:31:27,529 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:31:27,529 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2023-11-29 06:31:27,534 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:31:27,535 INFO L85 PathProgramCache]: Analyzing trace with hash 1550401623, now seen corresponding path program 1 times [2023-11-29 06:31:27,545 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:31:27,545 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [600994624] [2023-11-29 06:31:27,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:31:27,546 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:31:27,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:31:27,822 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 06:31:27,823 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:31:27,823 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [600994624] [2023-11-29 06:31:27,824 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [600994624] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:31:27,824 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:31:27,824 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 06:31:27,826 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1127025604] [2023-11-29 06:31:27,826 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:31:27,835 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 06:31:27,841 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:31:27,861 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 06:31:27,862 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 06:31:27,891 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 51 out of 100 [2023-11-29 06:31:27,894 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 90 places, 95 transitions, 205 flow. Second operand has 4 states, 4 states have (on average 52.25) internal successors, (209), 4 states have internal predecessors, (209), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:31:27,894 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 06:31:27,894 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 51 of 100 [2023-11-29 06:31:27,895 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 06:31:30,104 INFO L124 PetriNetUnfolderBase]: 11378/18181 cut-off events. [2023-11-29 06:31:30,104 INFO L125 PetriNetUnfolderBase]: For 290/290 co-relation queries the response was YES. [2023-11-29 06:31:30,161 INFO L83 FinitePrefix]: Finished finitePrefix Result has 33686 conditions, 18181 events. 11378/18181 cut-off events. For 290/290 co-relation queries the response was YES. Maximal size of possible extension queue 1117. Compared 144805 event pairs, 4176 based on Foata normal form. 444/15245 useless extension candidates. Maximal degree in co-relation 32117. Up to 8049 conditions per place. [2023-11-29 06:31:30,290 INFO L140 encePairwiseOnDemand]: 92/100 looper letters, 95 selfloop transitions, 5 changer transitions 0/148 dead transitions. [2023-11-29 06:31:30,290 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 92 places, 148 transitions, 523 flow [2023-11-29 06:31:30,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 06:31:30,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-29 06:31:30,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 307 transitions. [2023-11-29 06:31:30,305 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7675 [2023-11-29 06:31:30,306 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 307 transitions. [2023-11-29 06:31:30,306 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 307 transitions. [2023-11-29 06:31:30,308 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 06:31:30,311 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 307 transitions. [2023-11-29 06:31:30,315 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 76.75) internal successors, (307), 4 states have internal predecessors, (307), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:31:30,320 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 100.0) internal successors, (500), 5 states have internal predecessors, (500), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:31:30,320 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 100.0) internal successors, (500), 5 states have internal predecessors, (500), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:31:30,322 INFO L175 Difference]: Start difference. First operand has 90 places, 95 transitions, 205 flow. Second operand 4 states and 307 transitions. [2023-11-29 06:31:30,323 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 92 places, 148 transitions, 523 flow [2023-11-29 06:31:30,368 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 87 places, 148 transitions, 508 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-11-29 06:31:30,372 INFO L231 Difference]: Finished difference. Result has 90 places, 97 transitions, 230 flow [2023-11-29 06:31:30,374 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=100, PETRI_DIFFERENCE_MINUEND_FLOW=194, PETRI_DIFFERENCE_MINUEND_PLACES=84, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=94, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=89, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=230, PETRI_PLACES=90, PETRI_TRANSITIONS=97} [2023-11-29 06:31:30,378 INFO L281 CegarLoopForPetriNet]: 90 programPoint places, 0 predicate places. [2023-11-29 06:31:30,378 INFO L495 AbstractCegarLoop]: Abstraction has has 90 places, 97 transitions, 230 flow [2023-11-29 06:31:30,378 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 52.25) internal successors, (209), 4 states have internal predecessors, (209), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:31:30,378 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 06:31:30,379 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:31:30,379 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-29 06:31:30,379 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2023-11-29 06:31:30,380 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:31:30,380 INFO L85 PathProgramCache]: Analyzing trace with hash 817810807, now seen corresponding path program 1 times [2023-11-29 06:31:30,380 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:31:30,381 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [306852101] [2023-11-29 06:31:30,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:31:30,381 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:31:30,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:31:30,462 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 06:31:30,463 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:31:30,463 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [306852101] [2023-11-29 06:31:30,463 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [306852101] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:31:30,464 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:31:30,464 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 06:31:30,464 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1977258611] [2023-11-29 06:31:30,464 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:31:30,465 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 06:31:30,466 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:31:30,466 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 06:31:30,467 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 06:31:30,512 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 54 out of 100 [2023-11-29 06:31:30,512 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 90 places, 97 transitions, 230 flow. Second operand has 4 states, 4 states have (on average 55.0) internal successors, (220), 4 states have internal predecessors, (220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:31:30,513 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 06:31:30,513 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 54 of 100 [2023-11-29 06:31:30,513 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 06:31:32,189 INFO L124 PetriNetUnfolderBase]: 8509/15335 cut-off events. [2023-11-29 06:31:32,189 INFO L125 PetriNetUnfolderBase]: For 2854/2874 co-relation queries the response was YES. [2023-11-29 06:31:32,217 INFO L83 FinitePrefix]: Finished finitePrefix Result has 29797 conditions, 15335 events. 8509/15335 cut-off events. For 2854/2874 co-relation queries the response was YES. Maximal size of possible extension queue 965. Compared 135812 event pairs, 2509 based on Foata normal form. 20/13239 useless extension candidates. Maximal degree in co-relation 17062. Up to 6222 conditions per place. [2023-11-29 06:31:32,288 INFO L140 encePairwiseOnDemand]: 96/100 looper letters, 65 selfloop transitions, 4 changer transitions 0/121 dead transitions. [2023-11-29 06:31:32,289 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 92 places, 121 transitions, 419 flow [2023-11-29 06:31:32,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 06:31:32,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-29 06:31:32,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 284 transitions. [2023-11-29 06:31:32,292 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.71 [2023-11-29 06:31:32,292 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 284 transitions. [2023-11-29 06:31:32,292 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 284 transitions. [2023-11-29 06:31:32,293 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 06:31:32,293 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 284 transitions. [2023-11-29 06:31:32,295 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 71.0) internal successors, (284), 4 states have internal predecessors, (284), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:31:32,297 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 100.0) internal successors, (500), 5 states have internal predecessors, (500), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:31:32,297 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 100.0) internal successors, (500), 5 states have internal predecessors, (500), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:31:32,297 INFO L175 Difference]: Start difference. First operand has 90 places, 97 transitions, 230 flow. Second operand 4 states and 284 transitions. [2023-11-29 06:31:32,298 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 92 places, 121 transitions, 419 flow [2023-11-29 06:31:32,399 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 92 places, 121 transitions, 419 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-29 06:31:32,402 INFO L231 Difference]: Finished difference. Result has 92 places, 96 transitions, 236 flow [2023-11-29 06:31:32,402 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=100, PETRI_DIFFERENCE_MINUEND_FLOW=228, PETRI_DIFFERENCE_MINUEND_PLACES=89, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=96, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=92, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=236, PETRI_PLACES=92, PETRI_TRANSITIONS=96} [2023-11-29 06:31:32,403 INFO L281 CegarLoopForPetriNet]: 90 programPoint places, 2 predicate places. [2023-11-29 06:31:32,403 INFO L495 AbstractCegarLoop]: Abstraction has has 92 places, 96 transitions, 236 flow [2023-11-29 06:31:32,403 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 55.0) internal successors, (220), 4 states have internal predecessors, (220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:31:32,403 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 06:31:32,404 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:31:32,404 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-29 06:31:32,404 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2023-11-29 06:31:32,405 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:31:32,405 INFO L85 PathProgramCache]: Analyzing trace with hash -1970914816, now seen corresponding path program 1 times [2023-11-29 06:31:32,405 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:31:32,405 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1774530509] [2023-11-29 06:31:32,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:31:32,405 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:31:32,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:31:32,476 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 06:31:32,476 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:31:32,476 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1774530509] [2023-11-29 06:31:32,477 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1774530509] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:31:32,477 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:31:32,477 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 06:31:32,477 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [827640188] [2023-11-29 06:31:32,477 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:31:32,478 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 06:31:32,478 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:31:32,478 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 06:31:32,479 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 06:31:32,499 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 51 out of 100 [2023-11-29 06:31:32,499 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 92 places, 96 transitions, 236 flow. Second operand has 4 states, 4 states have (on average 52.75) internal successors, (211), 4 states have internal predecessors, (211), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:31:32,499 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 06:31:32,500 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 51 of 100 [2023-11-29 06:31:32,500 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 06:31:34,415 INFO L124 PetriNetUnfolderBase]: 13820/23166 cut-off events. [2023-11-29 06:31:34,415 INFO L125 PetriNetUnfolderBase]: For 7387/8100 co-relation queries the response was YES. [2023-11-29 06:31:34,457 INFO L83 FinitePrefix]: Finished finitePrefix Result has 46483 conditions, 23166 events. 13820/23166 cut-off events. For 7387/8100 co-relation queries the response was YES. Maximal size of possible extension queue 1371. Compared 201192 event pairs, 5037 based on Foata normal form. 925/20199 useless extension candidates. Maximal degree in co-relation 28076. Up to 9555 conditions per place. [2023-11-29 06:31:34,539 INFO L140 encePairwiseOnDemand]: 92/100 looper letters, 101 selfloop transitions, 5 changer transitions 0/153 dead transitions. [2023-11-29 06:31:34,539 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 94 places, 153 transitions, 616 flow [2023-11-29 06:31:34,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 06:31:34,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-29 06:31:34,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 307 transitions. [2023-11-29 06:31:34,542 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7675 [2023-11-29 06:31:34,542 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 307 transitions. [2023-11-29 06:31:34,542 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 307 transitions. [2023-11-29 06:31:34,543 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 06:31:34,543 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 307 transitions. [2023-11-29 06:31:34,544 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 76.75) internal successors, (307), 4 states have internal predecessors, (307), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:31:34,546 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 100.0) internal successors, (500), 5 states have internal predecessors, (500), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:31:34,547 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 100.0) internal successors, (500), 5 states have internal predecessors, (500), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:31:34,547 INFO L175 Difference]: Start difference. First operand has 92 places, 96 transitions, 236 flow. Second operand 4 states and 307 transitions. [2023-11-29 06:31:34,547 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 94 places, 153 transitions, 616 flow [2023-11-29 06:31:34,688 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 91 places, 153 transitions, 596 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-11-29 06:31:34,691 INFO L231 Difference]: Finished difference. Result has 94 places, 98 transitions, 262 flow [2023-11-29 06:31:34,691 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=100, PETRI_DIFFERENCE_MINUEND_FLOW=226, PETRI_DIFFERENCE_MINUEND_PLACES=88, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=95, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=90, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=262, PETRI_PLACES=94, PETRI_TRANSITIONS=98} [2023-11-29 06:31:34,692 INFO L281 CegarLoopForPetriNet]: 90 programPoint places, 4 predicate places. [2023-11-29 06:31:34,692 INFO L495 AbstractCegarLoop]: Abstraction has has 94 places, 98 transitions, 262 flow [2023-11-29 06:31:34,693 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 52.75) internal successors, (211), 4 states have internal predecessors, (211), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:31:34,693 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 06:31:34,693 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:31:34,693 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-29 06:31:34,694 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2023-11-29 06:31:34,694 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:31:34,694 INFO L85 PathProgramCache]: Analyzing trace with hash -417699781, now seen corresponding path program 1 times [2023-11-29 06:31:34,694 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:31:34,695 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1986865696] [2023-11-29 06:31:34,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:31:34,695 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:31:34,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:31:34,751 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 06:31:34,752 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:31:34,752 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1986865696] [2023-11-29 06:31:34,752 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1986865696] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:31:34,752 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:31:34,753 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 06:31:34,753 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [956797507] [2023-11-29 06:31:34,753 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:31:34,753 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 06:31:34,754 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:31:34,754 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 06:31:34,754 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 06:31:34,775 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 53 out of 100 [2023-11-29 06:31:34,776 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 94 places, 98 transitions, 262 flow. Second operand has 4 states, 4 states have (on average 54.25) internal successors, (217), 4 states have internal predecessors, (217), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:31:34,776 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 06:31:34,776 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 53 of 100 [2023-11-29 06:31:34,776 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 06:31:36,309 INFO L124 PetriNetUnfolderBase]: 10152/18854 cut-off events. [2023-11-29 06:31:36,309 INFO L125 PetriNetUnfolderBase]: For 7602/8150 co-relation queries the response was YES. [2023-11-29 06:31:36,357 INFO L83 FinitePrefix]: Finished finitePrefix Result has 38877 conditions, 18854 events. 10152/18854 cut-off events. For 7602/8150 co-relation queries the response was YES. Maximal size of possible extension queue 1155. Compared 175876 event pairs, 3053 based on Foata normal form. 552/17045 useless extension candidates. Maximal degree in co-relation 23512. Up to 7650 conditions per place. [2023-11-29 06:31:36,438 INFO L140 encePairwiseOnDemand]: 96/100 looper letters, 70 selfloop transitions, 4 changer transitions 0/124 dead transitions. [2023-11-29 06:31:36,438 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 96 places, 124 transitions, 481 flow [2023-11-29 06:31:36,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 06:31:36,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-29 06:31:36,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 280 transitions. [2023-11-29 06:31:36,440 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7 [2023-11-29 06:31:36,440 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 280 transitions. [2023-11-29 06:31:36,440 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 280 transitions. [2023-11-29 06:31:36,441 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 06:31:36,441 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 280 transitions. [2023-11-29 06:31:36,442 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 70.0) internal successors, (280), 4 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:31:36,443 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 100.0) internal successors, (500), 5 states have internal predecessors, (500), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:31:36,443 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 100.0) internal successors, (500), 5 states have internal predecessors, (500), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:31:36,443 INFO L175 Difference]: Start difference. First operand has 94 places, 98 transitions, 262 flow. Second operand 4 states and 280 transitions. [2023-11-29 06:31:36,443 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 96 places, 124 transitions, 481 flow [2023-11-29 06:31:36,544 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 96 places, 124 transitions, 481 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-29 06:31:36,547 INFO L231 Difference]: Finished difference. Result has 96 places, 97 transitions, 266 flow [2023-11-29 06:31:36,548 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=100, PETRI_DIFFERENCE_MINUEND_FLOW=258, PETRI_DIFFERENCE_MINUEND_PLACES=93, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=97, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=93, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=266, PETRI_PLACES=96, PETRI_TRANSITIONS=97} [2023-11-29 06:31:36,548 INFO L281 CegarLoopForPetriNet]: 90 programPoint places, 6 predicate places. [2023-11-29 06:31:36,549 INFO L495 AbstractCegarLoop]: Abstraction has has 96 places, 97 transitions, 266 flow [2023-11-29 06:31:36,549 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 54.25) internal successors, (217), 4 states have internal predecessors, (217), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:31:36,549 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 06:31:36,549 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:31:36,549 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-29 06:31:36,550 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2023-11-29 06:31:36,550 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:31:36,550 INFO L85 PathProgramCache]: Analyzing trace with hash -968816374, now seen corresponding path program 1 times [2023-11-29 06:31:36,550 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:31:36,551 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [110107753] [2023-11-29 06:31:36,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:31:36,551 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:31:36,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:31:36,612 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 06:31:36,613 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:31:36,613 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [110107753] [2023-11-29 06:31:36,613 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [110107753] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:31:36,613 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:31:36,614 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 06:31:36,614 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [154381331] [2023-11-29 06:31:36,614 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:31:36,614 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 06:31:36,615 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:31:36,615 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 06:31:36,616 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 06:31:36,636 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 54 out of 100 [2023-11-29 06:31:36,637 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 96 places, 97 transitions, 266 flow. Second operand has 4 states, 4 states have (on average 55.5) internal successors, (222), 4 states have internal predecessors, (222), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:31:36,637 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 06:31:36,637 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 54 of 100 [2023-11-29 06:31:36,637 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 06:31:38,122 INFO L124 PetriNetUnfolderBase]: 10181/19204 cut-off events. [2023-11-29 06:31:38,122 INFO L125 PetriNetUnfolderBase]: For 8951/9229 co-relation queries the response was YES. [2023-11-29 06:31:38,160 INFO L83 FinitePrefix]: Finished finitePrefix Result has 40089 conditions, 19204 events. 10181/19204 cut-off events. For 8951/9229 co-relation queries the response was YES. Maximal size of possible extension queue 1193. Compared 182340 event pairs, 2836 based on Foata normal form. 278/17121 useless extension candidates. Maximal degree in co-relation 24913. Up to 7824 conditions per place. [2023-11-29 06:31:38,219 INFO L140 encePairwiseOnDemand]: 96/100 looper letters, 69 selfloop transitions, 4 changer transitions 0/123 dead transitions. [2023-11-29 06:31:38,219 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 98 places, 123 transitions, 491 flow [2023-11-29 06:31:38,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 06:31:38,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-29 06:31:38,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 284 transitions. [2023-11-29 06:31:38,221 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.71 [2023-11-29 06:31:38,221 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 284 transitions. [2023-11-29 06:31:38,221 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 284 transitions. [2023-11-29 06:31:38,221 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 06:31:38,221 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 284 transitions. [2023-11-29 06:31:38,222 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 71.0) internal successors, (284), 4 states have internal predecessors, (284), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:31:38,224 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 100.0) internal successors, (500), 5 states have internal predecessors, (500), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:31:38,224 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 100.0) internal successors, (500), 5 states have internal predecessors, (500), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:31:38,224 INFO L175 Difference]: Start difference. First operand has 96 places, 97 transitions, 266 flow. Second operand 4 states and 284 transitions. [2023-11-29 06:31:38,224 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 98 places, 123 transitions, 491 flow [2023-11-29 06:31:38,372 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 95 places, 123 transitions, 477 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-11-29 06:31:38,373 INFO L231 Difference]: Finished difference. Result has 95 places, 96 transitions, 264 flow [2023-11-29 06:31:38,373 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=100, PETRI_DIFFERENCE_MINUEND_FLOW=256, PETRI_DIFFERENCE_MINUEND_PLACES=92, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=96, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=92, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=264, PETRI_PLACES=95, PETRI_TRANSITIONS=96} [2023-11-29 06:31:38,374 INFO L281 CegarLoopForPetriNet]: 90 programPoint places, 5 predicate places. [2023-11-29 06:31:38,374 INFO L495 AbstractCegarLoop]: Abstraction has has 95 places, 96 transitions, 264 flow [2023-11-29 06:31:38,374 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 55.5) internal successors, (222), 4 states have internal predecessors, (222), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:31:38,374 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 06:31:38,375 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:31:38,375 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-29 06:31:38,375 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2023-11-29 06:31:38,375 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:31:38,375 INFO L85 PathProgramCache]: Analyzing trace with hash -63791591, now seen corresponding path program 1 times [2023-11-29 06:31:38,375 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:31:38,375 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1816955421] [2023-11-29 06:31:38,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:31:38,376 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:31:38,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:31:38,451 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 06:31:38,451 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:31:38,452 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1816955421] [2023-11-29 06:31:38,452 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1816955421] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:31:38,452 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:31:38,452 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 06:31:38,452 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1902527424] [2023-11-29 06:31:38,452 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:31:38,453 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 06:31:38,453 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:31:38,453 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 06:31:38,453 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-29 06:31:38,486 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 52 out of 100 [2023-11-29 06:31:38,487 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 95 places, 96 transitions, 264 flow. Second operand has 5 states, 5 states have (on average 53.4) internal successors, (267), 5 states have internal predecessors, (267), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:31:38,487 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 06:31:38,487 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 52 of 100 [2023-11-29 06:31:38,487 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 06:31:40,148 INFO L124 PetriNetUnfolderBase]: 13800/22232 cut-off events. [2023-11-29 06:31:40,148 INFO L125 PetriNetUnfolderBase]: For 9650/10395 co-relation queries the response was YES. [2023-11-29 06:31:40,194 INFO L83 FinitePrefix]: Finished finitePrefix Result has 49251 conditions, 22232 events. 13800/22232 cut-off events. For 9650/10395 co-relation queries the response was YES. Maximal size of possible extension queue 1325. Compared 184275 event pairs, 2977 based on Foata normal form. 375/20582 useless extension candidates. Maximal degree in co-relation 29560. Up to 9338 conditions per place. [2023-11-29 06:31:40,264 INFO L140 encePairwiseOnDemand]: 94/100 looper letters, 97 selfloop transitions, 6 changer transitions 0/149 dead transitions. [2023-11-29 06:31:40,264 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 98 places, 149 transitions, 630 flow [2023-11-29 06:31:40,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 06:31:40,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-11-29 06:31:40,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 357 transitions. [2023-11-29 06:31:40,267 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.714 [2023-11-29 06:31:40,267 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 357 transitions. [2023-11-29 06:31:40,267 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 357 transitions. [2023-11-29 06:31:40,267 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 06:31:40,267 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 357 transitions. [2023-11-29 06:31:40,269 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 71.4) internal successors, (357), 5 states have internal predecessors, (357), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:31:40,270 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 100.0) internal successors, (600), 6 states have internal predecessors, (600), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:31:40,270 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 100.0) internal successors, (600), 6 states have internal predecessors, (600), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:31:40,271 INFO L175 Difference]: Start difference. First operand has 95 places, 96 transitions, 264 flow. Second operand 5 states and 357 transitions. [2023-11-29 06:31:40,271 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 98 places, 149 transitions, 630 flow [2023-11-29 06:31:40,372 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 95 places, 149 transitions, 610 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-11-29 06:31:40,374 INFO L231 Difference]: Finished difference. Result has 95 places, 95 transitions, 266 flow [2023-11-29 06:31:40,374 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=100, PETRI_DIFFERENCE_MINUEND_FLOW=254, PETRI_DIFFERENCE_MINUEND_PLACES=91, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=95, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=89, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=266, PETRI_PLACES=95, PETRI_TRANSITIONS=95} [2023-11-29 06:31:40,375 INFO L281 CegarLoopForPetriNet]: 90 programPoint places, 5 predicate places. [2023-11-29 06:31:40,375 INFO L495 AbstractCegarLoop]: Abstraction has has 95 places, 95 transitions, 266 flow [2023-11-29 06:31:40,375 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 53.4) internal successors, (267), 5 states have internal predecessors, (267), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:31:40,375 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 06:31:40,375 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:31:40,375 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-29 06:31:40,376 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2023-11-29 06:31:40,376 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:31:40,376 INFO L85 PathProgramCache]: Analyzing trace with hash -63790566, now seen corresponding path program 1 times [2023-11-29 06:31:40,376 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:31:40,376 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2068488624] [2023-11-29 06:31:40,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:31:40,376 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:31:40,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:31:40,422 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 06:31:40,422 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:31:40,422 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2068488624] [2023-11-29 06:31:40,423 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2068488624] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:31:40,423 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:31:40,423 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 06:31:40,423 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [234612799] [2023-11-29 06:31:40,423 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:31:40,424 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 06:31:40,424 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:31:40,424 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 06:31:40,425 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 06:31:40,447 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 51 out of 100 [2023-11-29 06:31:40,447 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 95 places, 95 transitions, 266 flow. Second operand has 4 states, 4 states have (on average 52.5) internal successors, (210), 4 states have internal predecessors, (210), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:31:40,448 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 06:31:40,448 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 51 of 100 [2023-11-29 06:31:40,448 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 06:31:42,065 INFO L124 PetriNetUnfolderBase]: 11267/20096 cut-off events. [2023-11-29 06:31:42,065 INFO L125 PetriNetUnfolderBase]: For 10163/10765 co-relation queries the response was YES. [2023-11-29 06:31:42,117 INFO L83 FinitePrefix]: Finished finitePrefix Result has 42993 conditions, 20096 events. 11267/20096 cut-off events. For 10163/10765 co-relation queries the response was YES. Maximal size of possible extension queue 1189. Compared 182368 event pairs, 5297 based on Foata normal form. 571/18321 useless extension candidates. Maximal degree in co-relation 25701. Up to 9728 conditions per place. [2023-11-29 06:31:42,198 INFO L140 encePairwiseOnDemand]: 95/100 looper letters, 99 selfloop transitions, 4 changer transitions 0/149 dead transitions. [2023-11-29 06:31:42,198 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 98 places, 149 transitions, 618 flow [2023-11-29 06:31:42,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 06:31:42,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-29 06:31:42,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 302 transitions. [2023-11-29 06:31:42,200 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.755 [2023-11-29 06:31:42,200 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 302 transitions. [2023-11-29 06:31:42,200 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 302 transitions. [2023-11-29 06:31:42,201 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 06:31:42,201 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 302 transitions. [2023-11-29 06:31:42,202 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 75.5) internal successors, (302), 4 states have internal predecessors, (302), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:31:42,203 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 100.0) internal successors, (500), 5 states have internal predecessors, (500), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:31:42,204 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 100.0) internal successors, (500), 5 states have internal predecessors, (500), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:31:42,204 INFO L175 Difference]: Start difference. First operand has 95 places, 95 transitions, 266 flow. Second operand 4 states and 302 transitions. [2023-11-29 06:31:42,204 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 98 places, 149 transitions, 618 flow [2023-11-29 06:31:42,286 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 94 places, 149 transitions, 606 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-11-29 06:31:42,288 INFO L231 Difference]: Finished difference. Result has 94 places, 94 transitions, 256 flow [2023-11-29 06:31:42,289 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=100, PETRI_DIFFERENCE_MINUEND_FLOW=248, PETRI_DIFFERENCE_MINUEND_PLACES=91, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=94, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=90, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=256, PETRI_PLACES=94, PETRI_TRANSITIONS=94} [2023-11-29 06:31:42,289 INFO L281 CegarLoopForPetriNet]: 90 programPoint places, 4 predicate places. [2023-11-29 06:31:42,290 INFO L495 AbstractCegarLoop]: Abstraction has has 94 places, 94 transitions, 256 flow [2023-11-29 06:31:42,290 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 52.5) internal successors, (210), 4 states have internal predecessors, (210), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:31:42,290 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 06:31:42,290 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:31:42,290 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-29 06:31:42,290 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2023-11-29 06:31:42,291 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:31:42,291 INFO L85 PathProgramCache]: Analyzing trace with hash 31432484, now seen corresponding path program 1 times [2023-11-29 06:31:42,291 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:31:42,291 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [741183895] [2023-11-29 06:31:42,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:31:42,291 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:31:42,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:31:42,338 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 06:31:42,338 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:31:42,339 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [741183895] [2023-11-29 06:31:42,339 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [741183895] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:31:42,339 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:31:42,339 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 06:31:42,339 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1926567301] [2023-11-29 06:31:42,340 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:31:42,340 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 06:31:42,340 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:31:42,340 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 06:31:42,341 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 06:31:42,361 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 53 out of 100 [2023-11-29 06:31:42,362 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 94 places, 94 transitions, 256 flow. Second operand has 4 states, 4 states have (on average 54.75) internal successors, (219), 4 states have internal predecessors, (219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:31:42,362 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 06:31:42,362 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 53 of 100 [2023-11-29 06:31:42,362 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 06:31:43,989 INFO L124 PetriNetUnfolderBase]: 10200/18854 cut-off events. [2023-11-29 06:31:43,989 INFO L125 PetriNetUnfolderBase]: For 9023/9301 co-relation queries the response was YES. [2023-11-29 06:31:44,043 INFO L83 FinitePrefix]: Finished finitePrefix Result has 39524 conditions, 18854 events. 10200/18854 cut-off events. For 9023/9301 co-relation queries the response was YES. Maximal size of possible extension queue 1158. Compared 175024 event pairs, 2836 based on Foata normal form. 562/17160 useless extension candidates. Maximal degree in co-relation 24796. Up to 8108 conditions per place. [2023-11-29 06:31:44,125 INFO L140 encePairwiseOnDemand]: 96/100 looper letters, 70 selfloop transitions, 4 changer transitions 0/120 dead transitions. [2023-11-29 06:31:44,125 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 96 places, 120 transitions, 480 flow [2023-11-29 06:31:44,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 06:31:44,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-29 06:31:44,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 280 transitions. [2023-11-29 06:31:44,127 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7 [2023-11-29 06:31:44,127 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 280 transitions. [2023-11-29 06:31:44,127 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 280 transitions. [2023-11-29 06:31:44,127 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 06:31:44,128 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 280 transitions. [2023-11-29 06:31:44,129 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 70.0) internal successors, (280), 4 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:31:44,130 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 100.0) internal successors, (500), 5 states have internal predecessors, (500), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:31:44,130 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 100.0) internal successors, (500), 5 states have internal predecessors, (500), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:31:44,130 INFO L175 Difference]: Start difference. First operand has 94 places, 94 transitions, 256 flow. Second operand 4 states and 280 transitions. [2023-11-29 06:31:44,130 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 96 places, 120 transitions, 480 flow [2023-11-29 06:31:44,280 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 94 places, 120 transitions, 469 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-29 06:31:44,281 INFO L231 Difference]: Finished difference. Result has 94 places, 93 transitions, 254 flow [2023-11-29 06:31:44,282 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=100, PETRI_DIFFERENCE_MINUEND_FLOW=246, PETRI_DIFFERENCE_MINUEND_PLACES=91, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=93, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=89, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=254, PETRI_PLACES=94, PETRI_TRANSITIONS=93} [2023-11-29 06:31:44,282 INFO L281 CegarLoopForPetriNet]: 90 programPoint places, 4 predicate places. [2023-11-29 06:31:44,282 INFO L495 AbstractCegarLoop]: Abstraction has has 94 places, 93 transitions, 254 flow [2023-11-29 06:31:44,283 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 54.75) internal successors, (219), 4 states have internal predecessors, (219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:31:44,283 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 06:31:44,283 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:31:44,283 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-29 06:31:44,283 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2023-11-29 06:31:44,284 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:31:44,284 INFO L85 PathProgramCache]: Analyzing trace with hash -2059289812, now seen corresponding path program 1 times [2023-11-29 06:31:44,284 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:31:44,284 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [531949298] [2023-11-29 06:31:44,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:31:44,284 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:31:44,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:31:44,342 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 06:31:44,343 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:31:44,343 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [531949298] [2023-11-29 06:31:44,343 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [531949298] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:31:44,343 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:31:44,343 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 06:31:44,344 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1563045444] [2023-11-29 06:31:44,344 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:31:44,344 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 06:31:44,345 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:31:44,345 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 06:31:44,345 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 06:31:44,365 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 51 out of 100 [2023-11-29 06:31:44,366 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 94 places, 93 transitions, 254 flow. Second operand has 4 states, 4 states have (on average 53.25) internal successors, (213), 4 states have internal predecessors, (213), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:31:44,366 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 06:31:44,366 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 51 of 100 [2023-11-29 06:31:44,366 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 06:31:46,276 INFO L124 PetriNetUnfolderBase]: 16302/27861 cut-off events. [2023-11-29 06:31:46,276 INFO L125 PetriNetUnfolderBase]: For 15285/16144 co-relation queries the response was YES. [2023-11-29 06:31:46,346 INFO L83 FinitePrefix]: Finished finitePrefix Result has 59197 conditions, 27861 events. 16302/27861 cut-off events. For 15285/16144 co-relation queries the response was YES. Maximal size of possible extension queue 1566. Compared 253815 event pairs, 6417 based on Foata normal form. 1487/25486 useless extension candidates. Maximal degree in co-relation 37245. Up to 11859 conditions per place. [2023-11-29 06:31:46,449 INFO L140 encePairwiseOnDemand]: 92/100 looper letters, 107 selfloop transitions, 5 changer transitions 0/154 dead transitions. [2023-11-29 06:31:46,449 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 96 places, 154 transitions, 688 flow [2023-11-29 06:31:46,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 06:31:46,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-29 06:31:46,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 307 transitions. [2023-11-29 06:31:46,451 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7675 [2023-11-29 06:31:46,451 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 307 transitions. [2023-11-29 06:31:46,451 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 307 transitions. [2023-11-29 06:31:46,451 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 06:31:46,451 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 307 transitions. [2023-11-29 06:31:46,452 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 76.75) internal successors, (307), 4 states have internal predecessors, (307), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:31:46,453 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 100.0) internal successors, (500), 5 states have internal predecessors, (500), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:31:46,453 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 100.0) internal successors, (500), 5 states have internal predecessors, (500), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:31:46,453 INFO L175 Difference]: Start difference. First operand has 94 places, 93 transitions, 254 flow. Second operand 4 states and 307 transitions. [2023-11-29 06:31:46,453 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 96 places, 154 transitions, 688 flow [2023-11-29 06:31:46,525 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 93 places, 154 transitions, 668 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-11-29 06:31:46,527 INFO L231 Difference]: Finished difference. Result has 96 places, 95 transitions, 280 flow [2023-11-29 06:31:46,527 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=100, PETRI_DIFFERENCE_MINUEND_FLOW=244, PETRI_DIFFERENCE_MINUEND_PLACES=90, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=92, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=87, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=280, PETRI_PLACES=96, PETRI_TRANSITIONS=95} [2023-11-29 06:31:46,528 INFO L281 CegarLoopForPetriNet]: 90 programPoint places, 6 predicate places. [2023-11-29 06:31:46,528 INFO L495 AbstractCegarLoop]: Abstraction has has 96 places, 95 transitions, 280 flow [2023-11-29 06:31:46,528 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 53.25) internal successors, (213), 4 states have internal predecessors, (213), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:31:46,528 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 06:31:46,528 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:31:46,529 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-29 06:31:46,529 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2023-11-29 06:31:46,529 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:31:46,529 INFO L85 PathProgramCache]: Analyzing trace with hash -1977538562, now seen corresponding path program 1 times [2023-11-29 06:31:46,529 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:31:46,529 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1246721017] [2023-11-29 06:31:46,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:31:46,529 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:31:46,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:31:46,599 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 06:31:46,599 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:31:46,599 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1246721017] [2023-11-29 06:31:46,599 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1246721017] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:31:46,600 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:31:46,600 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 06:31:46,600 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1796327839] [2023-11-29 06:31:46,600 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:31:46,601 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 06:31:46,601 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:31:46,601 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 06:31:46,602 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-29 06:31:46,642 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 49 out of 100 [2023-11-29 06:31:46,642 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 96 places, 95 transitions, 280 flow. Second operand has 6 states, 6 states have (on average 50.166666666666664) internal successors, (301), 6 states have internal predecessors, (301), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:31:46,643 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 06:31:46,643 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 49 of 100 [2023-11-29 06:31:46,643 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 06:31:48,682 INFO L124 PetriNetUnfolderBase]: 16109/26443 cut-off events. [2023-11-29 06:31:48,682 INFO L125 PetriNetUnfolderBase]: For 14912/16028 co-relation queries the response was YES. [2023-11-29 06:31:48,737 INFO L83 FinitePrefix]: Finished finitePrefix Result has 60724 conditions, 26443 events. 16109/26443 cut-off events. For 14912/16028 co-relation queries the response was YES. Maximal size of possible extension queue 1537. Compared 229895 event pairs, 3708 based on Foata normal form. 1429/25937 useless extension candidates. Maximal degree in co-relation 38580. Up to 7050 conditions per place. [2023-11-29 06:31:48,817 INFO L140 encePairwiseOnDemand]: 92/100 looper letters, 129 selfloop transitions, 9 changer transitions 0/182 dead transitions. [2023-11-29 06:31:48,817 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 100 places, 182 transitions, 847 flow [2023-11-29 06:31:48,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 06:31:48,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-29 06:31:48,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 415 transitions. [2023-11-29 06:31:48,819 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6916666666666667 [2023-11-29 06:31:48,819 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 415 transitions. [2023-11-29 06:31:48,819 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 415 transitions. [2023-11-29 06:31:48,819 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 06:31:48,820 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 415 transitions. [2023-11-29 06:31:48,821 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 69.16666666666667) internal successors, (415), 6 states have internal predecessors, (415), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:31:48,822 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 100.0) internal successors, (700), 7 states have internal predecessors, (700), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:31:48,823 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 100.0) internal successors, (700), 7 states have internal predecessors, (700), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:31:48,823 INFO L175 Difference]: Start difference. First operand has 96 places, 95 transitions, 280 flow. Second operand 6 states and 415 transitions. [2023-11-29 06:31:48,823 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 100 places, 182 transitions, 847 flow [2023-11-29 06:31:48,989 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 100 places, 182 transitions, 847 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-29 06:31:48,991 INFO L231 Difference]: Finished difference. Result has 101 places, 95 transitions, 305 flow [2023-11-29 06:31:48,991 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=100, PETRI_DIFFERENCE_MINUEND_FLOW=278, PETRI_DIFFERENCE_MINUEND_PLACES=95, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=94, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=85, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=305, PETRI_PLACES=101, PETRI_TRANSITIONS=95} [2023-11-29 06:31:48,992 INFO L281 CegarLoopForPetriNet]: 90 programPoint places, 11 predicate places. [2023-11-29 06:31:48,992 INFO L495 AbstractCegarLoop]: Abstraction has has 101 places, 95 transitions, 305 flow [2023-11-29 06:31:48,992 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 50.166666666666664) internal successors, (301), 6 states have internal predecessors, (301), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:31:48,992 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 06:31:48,992 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:31:48,992 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-11-29 06:31:48,992 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting thread2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2023-11-29 06:31:48,993 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:31:48,993 INFO L85 PathProgramCache]: Analyzing trace with hash 974406764, now seen corresponding path program 1 times [2023-11-29 06:31:48,993 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:31:48,993 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [561046108] [2023-11-29 06:31:48,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:31:48,993 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:31:49,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:31:49,065 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 06:31:49,065 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:31:49,066 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [561046108] [2023-11-29 06:31:49,066 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [561046108] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:31:49,066 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:31:49,066 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 06:31:49,066 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [989814992] [2023-11-29 06:31:49,066 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:31:49,067 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 06:31:49,067 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:31:49,067 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 06:31:49,067 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-29 06:31:49,100 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 52 out of 100 [2023-11-29 06:31:49,100 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 101 places, 95 transitions, 305 flow. Second operand has 5 states, 5 states have (on average 53.8) internal successors, (269), 5 states have internal predecessors, (269), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:31:49,100 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 06:31:49,100 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 52 of 100 [2023-11-29 06:31:49,100 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 06:31:51,043 INFO L124 PetriNetUnfolderBase]: 16707/27163 cut-off events. [2023-11-29 06:31:51,043 INFO L125 PetriNetUnfolderBase]: For 25026/27245 co-relation queries the response was YES. [2023-11-29 06:31:51,146 INFO L83 FinitePrefix]: Finished finitePrefix Result has 66596 conditions, 27163 events. 16707/27163 cut-off events. For 25026/27245 co-relation queries the response was YES. Maximal size of possible extension queue 1533. Compared 232505 event pairs, 3429 based on Foata normal form. 1562/27053 useless extension candidates. Maximal degree in co-relation 42596. Up to 11640 conditions per place. [2023-11-29 06:31:51,253 INFO L140 encePairwiseOnDemand]: 94/100 looper letters, 106 selfloop transitions, 6 changer transitions 0/154 dead transitions. [2023-11-29 06:31:51,253 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 104 places, 154 transitions, 759 flow [2023-11-29 06:31:51,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 06:31:51,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-11-29 06:31:51,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 357 transitions. [2023-11-29 06:31:51,256 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.714 [2023-11-29 06:31:51,256 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 357 transitions. [2023-11-29 06:31:51,256 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 357 transitions. [2023-11-29 06:31:51,256 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 06:31:51,256 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 357 transitions. [2023-11-29 06:31:51,257 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 71.4) internal successors, (357), 5 states have internal predecessors, (357), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:31:51,259 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 100.0) internal successors, (600), 6 states have internal predecessors, (600), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:31:51,259 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 100.0) internal successors, (600), 6 states have internal predecessors, (600), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:31:51,259 INFO L175 Difference]: Start difference. First operand has 101 places, 95 transitions, 305 flow. Second operand 5 states and 357 transitions. [2023-11-29 06:31:51,259 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 104 places, 154 transitions, 759 flow [2023-11-29 06:31:51,516 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 100 places, 154 transitions, 728 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-11-29 06:31:51,518 INFO L231 Difference]: Finished difference. Result has 100 places, 94 transitions, 302 flow [2023-11-29 06:31:51,518 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=100, PETRI_DIFFERENCE_MINUEND_FLOW=290, PETRI_DIFFERENCE_MINUEND_PLACES=96, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=94, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=88, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=302, PETRI_PLACES=100, PETRI_TRANSITIONS=94} [2023-11-29 06:31:51,518 INFO L281 CegarLoopForPetriNet]: 90 programPoint places, 10 predicate places. [2023-11-29 06:31:51,518 INFO L495 AbstractCegarLoop]: Abstraction has has 100 places, 94 transitions, 302 flow [2023-11-29 06:31:51,519 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 53.8) internal successors, (269), 5 states have internal predecessors, (269), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:31:51,519 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 06:31:51,519 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:31:51,519 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-11-29 06:31:51,519 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2023-11-29 06:31:51,519 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:31:51,519 INFO L85 PathProgramCache]: Analyzing trace with hash 974407789, now seen corresponding path program 1 times [2023-11-29 06:31:51,519 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:31:51,519 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1756072327] [2023-11-29 06:31:51,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:31:51,519 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:31:51,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:31:51,566 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 06:31:51,566 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:31:51,566 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1756072327] [2023-11-29 06:31:51,566 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1756072327] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:31:51,566 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:31:51,566 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 06:31:51,566 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2136446848] [2023-11-29 06:31:51,567 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:31:51,567 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 06:31:51,567 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:31:51,567 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 06:31:51,568 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 06:31:51,586 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 51 out of 100 [2023-11-29 06:31:51,586 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 100 places, 94 transitions, 302 flow. Second operand has 4 states, 4 states have (on average 53.0) internal successors, (212), 4 states have internal predecessors, (212), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:31:51,586 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 06:31:51,586 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 51 of 100 [2023-11-29 06:31:51,586 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 06:31:53,316 INFO L124 PetriNetUnfolderBase]: 13609/24713 cut-off events. [2023-11-29 06:31:53,316 INFO L125 PetriNetUnfolderBase]: For 20826/22443 co-relation queries the response was YES. [2023-11-29 06:31:53,390 INFO L83 FinitePrefix]: Finished finitePrefix Result has 57751 conditions, 24713 events. 13609/24713 cut-off events. For 20826/22443 co-relation queries the response was YES. Maximal size of possible extension queue 1412. Compared 234270 event pairs, 6435 based on Foata normal form. 1542/24154 useless extension candidates. Maximal degree in co-relation 36705. Up to 11537 conditions per place. [2023-11-29 06:31:53,483 INFO L140 encePairwiseOnDemand]: 95/100 looper letters, 108 selfloop transitions, 4 changer transitions 0/154 dead transitions. [2023-11-29 06:31:53,483 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 103 places, 154 transitions, 736 flow [2023-11-29 06:31:53,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 06:31:53,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-29 06:31:53,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 302 transitions. [2023-11-29 06:31:53,484 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.755 [2023-11-29 06:31:53,484 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 302 transitions. [2023-11-29 06:31:53,484 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 302 transitions. [2023-11-29 06:31:53,485 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 06:31:53,485 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 302 transitions. [2023-11-29 06:31:53,485 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 75.5) internal successors, (302), 4 states have internal predecessors, (302), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:31:53,486 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 100.0) internal successors, (500), 5 states have internal predecessors, (500), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:31:53,486 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 100.0) internal successors, (500), 5 states have internal predecessors, (500), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:31:53,486 INFO L175 Difference]: Start difference. First operand has 100 places, 94 transitions, 302 flow. Second operand 4 states and 302 transitions. [2023-11-29 06:31:53,486 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 103 places, 154 transitions, 736 flow [2023-11-29 06:31:53,660 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 99 places, 154 transitions, 724 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-11-29 06:31:53,661 INFO L231 Difference]: Finished difference. Result has 99 places, 93 transitions, 292 flow [2023-11-29 06:31:53,661 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=100, PETRI_DIFFERENCE_MINUEND_FLOW=284, PETRI_DIFFERENCE_MINUEND_PLACES=96, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=93, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=89, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=292, PETRI_PLACES=99, PETRI_TRANSITIONS=93} [2023-11-29 06:31:53,662 INFO L281 CegarLoopForPetriNet]: 90 programPoint places, 9 predicate places. [2023-11-29 06:31:53,662 INFO L495 AbstractCegarLoop]: Abstraction has has 99 places, 93 transitions, 292 flow [2023-11-29 06:31:53,662 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 53.0) internal successors, (212), 4 states have internal predecessors, (212), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:31:53,662 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 06:31:53,662 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:31:53,662 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-11-29 06:31:53,663 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting thread3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2023-11-29 06:31:53,663 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:31:53,663 INFO L85 PathProgramCache]: Analyzing trace with hash 586526074, now seen corresponding path program 1 times [2023-11-29 06:31:53,663 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:31:53,663 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [136782032] [2023-11-29 06:31:53,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:31:53,663 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:31:53,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:31:53,709 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 06:31:53,710 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:31:53,710 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [136782032] [2023-11-29 06:31:53,710 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [136782032] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:31:53,710 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:31:53,710 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 06:31:53,711 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [269375624] [2023-11-29 06:31:53,711 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:31:53,711 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 06:31:53,711 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:31:53,712 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 06:31:53,712 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 06:31:53,736 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 54 out of 100 [2023-11-29 06:31:53,736 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 99 places, 93 transitions, 292 flow. Second operand has 4 states, 4 states have (on average 56.0) internal successors, (224), 4 states have internal predecessors, (224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:31:53,736 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 06:31:53,736 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 54 of 100 [2023-11-29 06:31:53,737 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 06:31:55,281 INFO L124 PetriNetUnfolderBase]: 12262/23266 cut-off events. [2023-11-29 06:31:55,281 INFO L125 PetriNetUnfolderBase]: For 17401/18714 co-relation queries the response was YES. [2023-11-29 06:31:55,359 INFO L83 FinitePrefix]: Finished finitePrefix Result has 52423 conditions, 23266 events. 12262/23266 cut-off events. For 17401/18714 co-relation queries the response was YES. Maximal size of possible extension queue 1350. Compared 228133 event pairs, 3818 based on Foata normal form. 1132/22230 useless extension candidates. Maximal degree in co-relation 33135. Up to 8602 conditions per place. [2023-11-29 06:31:55,442 INFO L140 encePairwiseOnDemand]: 96/100 looper letters, 75 selfloop transitions, 4 changer transitions 0/122 dead transitions. [2023-11-29 06:31:55,442 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 101 places, 122 transitions, 559 flow [2023-11-29 06:31:55,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 06:31:55,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-29 06:31:55,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 284 transitions. [2023-11-29 06:31:55,444 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.71 [2023-11-29 06:31:55,444 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 284 transitions. [2023-11-29 06:31:55,444 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 284 transitions. [2023-11-29 06:31:55,444 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 06:31:55,444 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 284 transitions. [2023-11-29 06:31:55,445 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 71.0) internal successors, (284), 4 states have internal predecessors, (284), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:31:55,446 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 100.0) internal successors, (500), 5 states have internal predecessors, (500), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:31:55,446 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 100.0) internal successors, (500), 5 states have internal predecessors, (500), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:31:55,447 INFO L175 Difference]: Start difference. First operand has 99 places, 93 transitions, 292 flow. Second operand 4 states and 284 transitions. [2023-11-29 06:31:55,447 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 101 places, 122 transitions, 559 flow [2023-11-29 06:31:55,686 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 99 places, 122 transitions, 548 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-29 06:31:55,688 INFO L231 Difference]: Finished difference. Result has 99 places, 92 transitions, 292 flow [2023-11-29 06:31:55,688 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=100, PETRI_DIFFERENCE_MINUEND_FLOW=284, PETRI_DIFFERENCE_MINUEND_PLACES=96, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=92, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=88, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=292, PETRI_PLACES=99, PETRI_TRANSITIONS=92} [2023-11-29 06:31:55,688 INFO L281 CegarLoopForPetriNet]: 90 programPoint places, 9 predicate places. [2023-11-29 06:31:55,688 INFO L495 AbstractCegarLoop]: Abstraction has has 99 places, 92 transitions, 292 flow [2023-11-29 06:31:55,689 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 56.0) internal successors, (224), 4 states have internal predecessors, (224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:31:55,689 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 06:31:55,689 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:31:55,689 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-11-29 06:31:55,689 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2023-11-29 06:31:55,689 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:31:55,689 INFO L85 PathProgramCache]: Analyzing trace with hash -226835425, now seen corresponding path program 1 times [2023-11-29 06:31:55,689 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:31:55,690 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [989486745] [2023-11-29 06:31:55,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:31:55,690 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:31:55,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:31:55,727 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 06:31:55,727 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:31:55,728 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [989486745] [2023-11-29 06:31:55,728 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [989486745] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:31:55,728 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:31:55,728 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 06:31:55,728 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1939538433] [2023-11-29 06:31:55,728 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:31:55,728 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 06:31:55,729 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:31:55,729 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 06:31:55,729 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 06:31:55,746 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 51 out of 100 [2023-11-29 06:31:55,747 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 99 places, 92 transitions, 292 flow. Second operand has 4 states, 4 states have (on average 52.75) internal successors, (211), 4 states have internal predecessors, (211), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:31:55,747 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 06:31:55,747 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 51 of 100 [2023-11-29 06:31:55,747 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 06:31:57,587 INFO L124 PetriNetUnfolderBase]: 16086/26766 cut-off events. [2023-11-29 06:31:57,587 INFO L125 PetriNetUnfolderBase]: For 23631/24851 co-relation queries the response was YES. [2023-11-29 06:31:57,669 INFO L83 FinitePrefix]: Finished finitePrefix Result has 63287 conditions, 26766 events. 16086/26766 cut-off events. For 23631/24851 co-relation queries the response was YES. Maximal size of possible extension queue 1492. Compared 236330 event pairs, 6498 based on Foata normal form. 1332/26065 useless extension candidates. Maximal degree in co-relation 39620. Up to 11975 conditions per place. [2023-11-29 06:31:57,762 INFO L140 encePairwiseOnDemand]: 95/100 looper letters, 104 selfloop transitions, 5 changer transitions 0/150 dead transitions. [2023-11-29 06:31:57,763 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 101 places, 150 transitions, 715 flow [2023-11-29 06:31:57,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 06:31:57,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-29 06:31:57,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 300 transitions. [2023-11-29 06:31:57,765 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.75 [2023-11-29 06:31:57,765 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 300 transitions. [2023-11-29 06:31:57,765 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 300 transitions. [2023-11-29 06:31:57,765 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 06:31:57,765 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 300 transitions. [2023-11-29 06:31:57,766 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 75.0) internal successors, (300), 4 states have internal predecessors, (300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:31:57,766 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 100.0) internal successors, (500), 5 states have internal predecessors, (500), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:31:57,767 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 100.0) internal successors, (500), 5 states have internal predecessors, (500), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:31:57,767 INFO L175 Difference]: Start difference. First operand has 99 places, 92 transitions, 292 flow. Second operand 4 states and 300 transitions. [2023-11-29 06:31:57,767 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 101 places, 150 transitions, 715 flow [2023-11-29 06:31:57,844 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 97 places, 150 transitions, 692 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-11-29 06:31:57,845 INFO L231 Difference]: Finished difference. Result has 98 places, 92 transitions, 294 flow [2023-11-29 06:31:57,846 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=100, PETRI_DIFFERENCE_MINUEND_FLOW=275, PETRI_DIFFERENCE_MINUEND_PLACES=94, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=91, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=86, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=294, PETRI_PLACES=98, PETRI_TRANSITIONS=92} [2023-11-29 06:31:57,846 INFO L281 CegarLoopForPetriNet]: 90 programPoint places, 8 predicate places. [2023-11-29 06:31:57,846 INFO L495 AbstractCegarLoop]: Abstraction has has 98 places, 92 transitions, 294 flow [2023-11-29 06:31:57,846 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 52.75) internal successors, (211), 4 states have internal predecessors, (211), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:31:57,846 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 06:31:57,846 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:31:57,846 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-11-29 06:31:57,847 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting thread2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2023-11-29 06:31:57,847 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:31:57,847 INFO L85 PathProgramCache]: Analyzing trace with hash 141839399, now seen corresponding path program 1 times [2023-11-29 06:31:57,847 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:31:57,847 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [660216275] [2023-11-29 06:31:57,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:31:57,847 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:31:57,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:31:57,922 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 06:31:57,922 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:31:57,922 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [660216275] [2023-11-29 06:31:57,922 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [660216275] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:31:57,923 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:31:57,923 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 06:31:57,923 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [585735798] [2023-11-29 06:31:57,923 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:31:57,923 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 06:31:57,923 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:31:57,924 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 06:31:57,924 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-29 06:31:57,971 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 49 out of 100 [2023-11-29 06:31:57,971 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 98 places, 92 transitions, 294 flow. Second operand has 6 states, 6 states have (on average 50.5) internal successors, (303), 6 states have internal predecessors, (303), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:31:57,972 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 06:31:57,972 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 49 of 100 [2023-11-29 06:31:57,972 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 06:32:00,174 INFO L124 PetriNetUnfolderBase]: 17581/28327 cut-off events. [2023-11-29 06:32:00,175 INFO L125 PetriNetUnfolderBase]: For 27162/29124 co-relation queries the response was YES. [2023-11-29 06:32:00,240 INFO L83 FinitePrefix]: Finished finitePrefix Result has 70372 conditions, 28327 events. 17581/28327 cut-off events. For 27162/29124 co-relation queries the response was YES. Maximal size of possible extension queue 1617. Compared 241374 event pairs, 3701 based on Foata normal form. 2330/28853 useless extension candidates. Maximal degree in co-relation 56581. Up to 7112 conditions per place. [2023-11-29 06:32:00,326 INFO L140 encePairwiseOnDemand]: 92/100 looper letters, 137 selfloop transitions, 9 changer transitions 0/185 dead transitions. [2023-11-29 06:32:00,327 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 102 places, 185 transitions, 946 flow [2023-11-29 06:32:00,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 06:32:00,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-29 06:32:00,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 415 transitions. [2023-11-29 06:32:00,328 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6916666666666667 [2023-11-29 06:32:00,328 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 415 transitions. [2023-11-29 06:32:00,328 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 415 transitions. [2023-11-29 06:32:00,328 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 06:32:00,329 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 415 transitions. [2023-11-29 06:32:00,329 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 69.16666666666667) internal successors, (415), 6 states have internal predecessors, (415), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:32:00,330 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 100.0) internal successors, (700), 7 states have internal predecessors, (700), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:32:00,330 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 100.0) internal successors, (700), 7 states have internal predecessors, (700), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:32:00,330 INFO L175 Difference]: Start difference. First operand has 98 places, 92 transitions, 294 flow. Second operand 6 states and 415 transitions. [2023-11-29 06:32:00,331 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 102 places, 185 transitions, 946 flow [2023-11-29 06:32:00,473 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 101 places, 185 transitions, 930 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-29 06:32:00,474 INFO L231 Difference]: Finished difference. Result has 102 places, 92 transitions, 315 flow [2023-11-29 06:32:00,475 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=100, PETRI_DIFFERENCE_MINUEND_FLOW=288, PETRI_DIFFERENCE_MINUEND_PLACES=96, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=91, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=82, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=315, PETRI_PLACES=102, PETRI_TRANSITIONS=92} [2023-11-29 06:32:00,475 INFO L281 CegarLoopForPetriNet]: 90 programPoint places, 12 predicate places. [2023-11-29 06:32:00,475 INFO L495 AbstractCegarLoop]: Abstraction has has 102 places, 92 transitions, 315 flow [2023-11-29 06:32:00,475 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 50.5) internal successors, (303), 6 states have internal predecessors, (303), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:32:00,475 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 06:32:00,475 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:32:00,475 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-11-29 06:32:00,475 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting thread3Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2023-11-29 06:32:00,476 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:32:00,476 INFO L85 PathProgramCache]: Analyzing trace with hash 1002408144, now seen corresponding path program 1 times [2023-11-29 06:32:00,476 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:32:00,476 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [729188160] [2023-11-29 06:32:00,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:32:00,476 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:32:00,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:32:00,524 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 06:32:00,524 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:32:00,524 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [729188160] [2023-11-29 06:32:00,524 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [729188160] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:32:00,525 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:32:00,525 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 06:32:00,525 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [8666314] [2023-11-29 06:32:00,525 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:32:00,525 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 06:32:00,526 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:32:00,526 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 06:32:00,526 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 06:32:00,547 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 53 out of 100 [2023-11-29 06:32:00,547 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 102 places, 92 transitions, 315 flow. Second operand has 4 states, 4 states have (on average 55.25) internal successors, (221), 4 states have internal predecessors, (221), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:32:00,547 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 06:32:00,548 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 53 of 100 [2023-11-29 06:32:00,548 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 06:32:02,269 INFO L124 PetriNetUnfolderBase]: 13177/24416 cut-off events. [2023-11-29 06:32:02,269 INFO L125 PetriNetUnfolderBase]: For 30426/32331 co-relation queries the response was YES. [2023-11-29 06:32:02,353 INFO L83 FinitePrefix]: Finished finitePrefix Result has 59416 conditions, 24416 events. 13177/24416 cut-off events. For 30426/32331 co-relation queries the response was YES. Maximal size of possible extension queue 1364. Compared 234718 event pairs, 4151 based on Foata normal form. 2047/24277 useless extension candidates. Maximal degree in co-relation 48408. Up to 9580 conditions per place. [2023-11-29 06:32:02,438 INFO L140 encePairwiseOnDemand]: 96/100 looper letters, 80 selfloop transitions, 4 changer transitions 0/123 dead transitions. [2023-11-29 06:32:02,438 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 104 places, 123 transitions, 613 flow [2023-11-29 06:32:02,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 06:32:02,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-29 06:32:02,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 280 transitions. [2023-11-29 06:32:02,439 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7 [2023-11-29 06:32:02,439 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 280 transitions. [2023-11-29 06:32:02,439 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 280 transitions. [2023-11-29 06:32:02,439 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 06:32:02,439 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 280 transitions. [2023-11-29 06:32:02,440 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 70.0) internal successors, (280), 4 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:32:02,441 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 100.0) internal successors, (500), 5 states have internal predecessors, (500), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:32:02,441 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 100.0) internal successors, (500), 5 states have internal predecessors, (500), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:32:02,441 INFO L175 Difference]: Start difference. First operand has 102 places, 92 transitions, 315 flow. Second operand 4 states and 280 transitions. [2023-11-29 06:32:02,441 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 104 places, 123 transitions, 613 flow [2023-11-29 06:32:02,658 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 100 places, 123 transitions, 591 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-11-29 06:32:02,660 INFO L231 Difference]: Finished difference. Result has 100 places, 91 transitions, 306 flow [2023-11-29 06:32:02,660 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=100, PETRI_DIFFERENCE_MINUEND_FLOW=298, PETRI_DIFFERENCE_MINUEND_PLACES=97, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=91, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=87, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=306, PETRI_PLACES=100, PETRI_TRANSITIONS=91} [2023-11-29 06:32:02,660 INFO L281 CegarLoopForPetriNet]: 90 programPoint places, 10 predicate places. [2023-11-29 06:32:02,661 INFO L495 AbstractCegarLoop]: Abstraction has has 100 places, 91 transitions, 306 flow [2023-11-29 06:32:02,661 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 55.25) internal successors, (221), 4 states have internal predecessors, (221), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:32:02,661 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 06:32:02,661 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:32:02,661 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-11-29 06:32:02,661 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2023-11-29 06:32:02,661 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:32:02,661 INFO L85 PathProgramCache]: Analyzing trace with hash 1049371954, now seen corresponding path program 1 times [2023-11-29 06:32:02,661 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:32:02,661 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1215231360] [2023-11-29 06:32:02,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:32:02,662 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:32:02,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:32:02,720 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 06:32:02,720 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:32:02,720 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1215231360] [2023-11-29 06:32:02,721 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1215231360] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:32:02,721 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:32:02,721 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 06:32:02,721 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [238900960] [2023-11-29 06:32:02,721 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:32:02,722 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 06:32:02,722 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:32:02,722 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 06:32:02,722 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-29 06:32:02,751 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 49 out of 100 [2023-11-29 06:32:02,752 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 100 places, 91 transitions, 306 flow. Second operand has 5 states, 5 states have (on average 51.0) internal successors, (255), 5 states have internal predecessors, (255), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:32:02,752 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 06:32:02,752 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 49 of 100 [2023-11-29 06:32:02,752 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 06:32:04,887 INFO L124 PetriNetUnfolderBase]: 17569/28084 cut-off events. [2023-11-29 06:32:04,887 INFO L125 PetriNetUnfolderBase]: For 28660/30192 co-relation queries the response was YES. [2023-11-29 06:32:04,974 INFO L83 FinitePrefix]: Finished finitePrefix Result has 72518 conditions, 28084 events. 17569/28084 cut-off events. For 28660/30192 co-relation queries the response was YES. Maximal size of possible extension queue 1568. Compared 235098 event pairs, 6954 based on Foata normal form. 1894/28202 useless extension candidates. Maximal degree in co-relation 58598. Up to 12775 conditions per place. [2023-11-29 06:32:05,068 INFO L140 encePairwiseOnDemand]: 93/100 looper letters, 172 selfloop transitions, 8 changer transitions 0/216 dead transitions. [2023-11-29 06:32:05,068 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 104 places, 216 transitions, 1156 flow [2023-11-29 06:32:05,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 06:32:05,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-29 06:32:05,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 445 transitions. [2023-11-29 06:32:05,070 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7416666666666667 [2023-11-29 06:32:05,070 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 445 transitions. [2023-11-29 06:32:05,070 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 445 transitions. [2023-11-29 06:32:05,070 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 06:32:05,071 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 445 transitions. [2023-11-29 06:32:05,071 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 74.16666666666667) internal successors, (445), 6 states have internal predecessors, (445), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:32:05,072 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 100.0) internal successors, (700), 7 states have internal predecessors, (700), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:32:05,073 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 100.0) internal successors, (700), 7 states have internal predecessors, (700), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:32:05,073 INFO L175 Difference]: Start difference. First operand has 100 places, 91 transitions, 306 flow. Second operand 6 states and 445 transitions. [2023-11-29 06:32:05,073 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 104 places, 216 transitions, 1156 flow [2023-11-29 06:32:05,542 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 100 places, 216 transitions, 1119 flow, removed 1 selfloop flow, removed 4 redundant places. [2023-11-29 06:32:05,545 INFO L231 Difference]: Finished difference. Result has 102 places, 92 transitions, 322 flow [2023-11-29 06:32:05,545 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=100, PETRI_DIFFERENCE_MINUEND_FLOW=287, PETRI_DIFFERENCE_MINUEND_PLACES=95, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=90, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=83, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=322, PETRI_PLACES=102, PETRI_TRANSITIONS=92} [2023-11-29 06:32:05,546 INFO L281 CegarLoopForPetriNet]: 90 programPoint places, 12 predicate places. [2023-11-29 06:32:05,546 INFO L495 AbstractCegarLoop]: Abstraction has has 102 places, 92 transitions, 322 flow [2023-11-29 06:32:05,546 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 51.0) internal successors, (255), 5 states have internal predecessors, (255), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:32:05,546 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 06:32:05,546 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:32:05,546 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-11-29 06:32:05,546 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting thread3Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2023-11-29 06:32:05,547 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:32:05,547 INFO L85 PathProgramCache]: Analyzing trace with hash 1009881180, now seen corresponding path program 1 times [2023-11-29 06:32:05,547 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:32:05,547 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1060769033] [2023-11-29 06:32:05,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:32:05,547 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:32:05,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:32:05,616 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 06:32:05,617 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:32:05,617 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1060769033] [2023-11-29 06:32:05,617 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1060769033] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:32:05,617 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:32:05,617 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 06:32:05,617 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1088910348] [2023-11-29 06:32:05,617 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:32:05,618 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 06:32:05,618 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:32:05,618 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 06:32:05,618 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-29 06:32:05,642 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 52 out of 100 [2023-11-29 06:32:05,643 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 102 places, 92 transitions, 322 flow. Second operand has 5 states, 5 states have (on average 54.2) internal successors, (271), 5 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:32:05,643 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 06:32:05,643 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 52 of 100 [2023-11-29 06:32:05,643 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 06:32:07,792 INFO L124 PetriNetUnfolderBase]: 17847/27948 cut-off events. [2023-11-29 06:32:07,792 INFO L125 PetriNetUnfolderBase]: For 44628/47105 co-relation queries the response was YES. [2023-11-29 06:32:07,861 INFO L83 FinitePrefix]: Finished finitePrefix Result has 73959 conditions, 27948 events. 17847/27948 cut-off events. For 44628/47105 co-relation queries the response was YES. Maximal size of possible extension queue 1490. Compared 227954 event pairs, 4151 based on Foata normal form. 2477/28903 useless extension candidates. Maximal degree in co-relation 59959. Up to 11786 conditions per place. [2023-11-29 06:32:07,949 INFO L140 encePairwiseOnDemand]: 94/100 looper letters, 115 selfloop transitions, 6 changer transitions 0/157 dead transitions. [2023-11-29 06:32:07,949 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 105 places, 157 transitions, 846 flow [2023-11-29 06:32:07,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 06:32:07,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-11-29 06:32:07,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 357 transitions. [2023-11-29 06:32:07,951 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.714 [2023-11-29 06:32:07,951 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 357 transitions. [2023-11-29 06:32:07,951 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 357 transitions. [2023-11-29 06:32:07,952 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 06:32:07,952 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 357 transitions. [2023-11-29 06:32:07,952 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 71.4) internal successors, (357), 5 states have internal predecessors, (357), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:32:07,953 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 100.0) internal successors, (600), 6 states have internal predecessors, (600), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:32:07,953 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 100.0) internal successors, (600), 6 states have internal predecessors, (600), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:32:07,954 INFO L175 Difference]: Start difference. First operand has 102 places, 92 transitions, 322 flow. Second operand 5 states and 357 transitions. [2023-11-29 06:32:07,954 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 105 places, 157 transitions, 846 flow [2023-11-29 06:32:08,146 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 101 places, 157 transitions, 806 flow, removed 9 selfloop flow, removed 4 redundant places. [2023-11-29 06:32:08,147 INFO L231 Difference]: Finished difference. Result has 101 places, 91 transitions, 316 flow [2023-11-29 06:32:08,147 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=100, PETRI_DIFFERENCE_MINUEND_FLOW=304, PETRI_DIFFERENCE_MINUEND_PLACES=97, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=91, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=85, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=316, PETRI_PLACES=101, PETRI_TRANSITIONS=91} [2023-11-29 06:32:08,148 INFO L281 CegarLoopForPetriNet]: 90 programPoint places, 11 predicate places. [2023-11-29 06:32:08,148 INFO L495 AbstractCegarLoop]: Abstraction has has 101 places, 91 transitions, 316 flow [2023-11-29 06:32:08,148 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 54.2) internal successors, (271), 5 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:32:08,148 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 06:32:08,148 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:32:08,148 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-11-29 06:32:08,148 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting thread3Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2023-11-29 06:32:08,149 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:32:08,149 INFO L85 PathProgramCache]: Analyzing trace with hash 1009882205, now seen corresponding path program 1 times [2023-11-29 06:32:08,149 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:32:08,149 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2091723819] [2023-11-29 06:32:08,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:32:08,149 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:32:08,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:32:08,192 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 06:32:08,192 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:32:08,192 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2091723819] [2023-11-29 06:32:08,192 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2091723819] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:32:08,192 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:32:08,192 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 06:32:08,192 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1096854935] [2023-11-29 06:32:08,192 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:32:08,193 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 06:32:08,193 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:32:08,193 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 06:32:08,193 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 06:32:08,214 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 51 out of 100 [2023-11-29 06:32:08,214 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 101 places, 91 transitions, 316 flow. Second operand has 4 states, 4 states have (on average 53.5) internal successors, (214), 4 states have internal predecessors, (214), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:32:08,214 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 06:32:08,215 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 51 of 100 [2023-11-29 06:32:08,215 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 06:32:10,024 INFO L124 PetriNetUnfolderBase]: 14707/24954 cut-off events. [2023-11-29 06:32:10,024 INFO L125 PetriNetUnfolderBase]: For 33391/35352 co-relation queries the response was YES. [2023-11-29 06:32:10,109 INFO L83 FinitePrefix]: Finished finitePrefix Result has 62909 conditions, 24954 events. 14707/24954 cut-off events. For 33391/35352 co-relation queries the response was YES. Maximal size of possible extension queue 1370. Compared 221089 event pairs, 7263 based on Foata normal form. 2299/25728 useless extension candidates. Maximal degree in co-relation 50944. Up to 12881 conditions per place. [2023-11-29 06:32:10,197 INFO L140 encePairwiseOnDemand]: 95/100 looper letters, 117 selfloop transitions, 4 changer transitions 0/157 dead transitions. [2023-11-29 06:32:10,197 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 104 places, 157 transitions, 814 flow [2023-11-29 06:32:10,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 06:32:10,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-29 06:32:10,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 302 transitions. [2023-11-29 06:32:10,198 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.755 [2023-11-29 06:32:10,198 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 302 transitions. [2023-11-29 06:32:10,198 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 302 transitions. [2023-11-29 06:32:10,198 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 06:32:10,198 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 302 transitions. [2023-11-29 06:32:10,199 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 75.5) internal successors, (302), 4 states have internal predecessors, (302), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:32:10,200 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 100.0) internal successors, (500), 5 states have internal predecessors, (500), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:32:10,200 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 100.0) internal successors, (500), 5 states have internal predecessors, (500), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:32:10,200 INFO L175 Difference]: Start difference. First operand has 101 places, 91 transitions, 316 flow. Second operand 4 states and 302 transitions. [2023-11-29 06:32:10,200 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 104 places, 157 transitions, 814 flow [2023-11-29 06:32:10,386 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 100 places, 157 transitions, 802 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-11-29 06:32:10,388 INFO L231 Difference]: Finished difference. Result has 100 places, 90 transitions, 306 flow [2023-11-29 06:32:10,388 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=100, PETRI_DIFFERENCE_MINUEND_FLOW=298, PETRI_DIFFERENCE_MINUEND_PLACES=97, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=90, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=86, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=306, PETRI_PLACES=100, PETRI_TRANSITIONS=90} [2023-11-29 06:32:10,388 INFO L281 CegarLoopForPetriNet]: 90 programPoint places, 10 predicate places. [2023-11-29 06:32:10,388 INFO L495 AbstractCegarLoop]: Abstraction has has 100 places, 90 transitions, 306 flow [2023-11-29 06:32:10,388 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 53.5) internal successors, (214), 4 states have internal predecessors, (214), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:32:10,388 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 06:32:10,388 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:32:10,389 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-11-29 06:32:10,389 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting thread3Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2023-11-29 06:32:10,389 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:32:10,389 INFO L85 PathProgramCache]: Analyzing trace with hash 1241546323, now seen corresponding path program 1 times [2023-11-29 06:32:10,389 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:32:10,389 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1281066602] [2023-11-29 06:32:10,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:32:10,389 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:32:10,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:32:10,452 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 06:32:10,453 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:32:10,453 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1281066602] [2023-11-29 06:32:10,453 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1281066602] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:32:10,453 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:32:10,453 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 06:32:10,453 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [369903740] [2023-11-29 06:32:10,453 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:32:10,453 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 06:32:10,454 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:32:10,454 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 06:32:10,454 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-29 06:32:10,506 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 49 out of 100 [2023-11-29 06:32:10,507 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 100 places, 90 transitions, 306 flow. Second operand has 6 states, 6 states have (on average 50.833333333333336) internal successors, (305), 6 states have internal predecessors, (305), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:32:10,507 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 06:32:10,507 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 49 of 100 [2023-11-29 06:32:10,507 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 06:32:12,938 INFO L124 PetriNetUnfolderBase]: 17509/27272 cut-off events. [2023-11-29 06:32:12,938 INFO L125 PetriNetUnfolderBase]: For 36269/38746 co-relation queries the response was YES. [2023-11-29 06:32:13,021 INFO L83 FinitePrefix]: Finished finitePrefix Result has 70589 conditions, 27272 events. 17509/27272 cut-off events. For 36269/38746 co-relation queries the response was YES. Maximal size of possible extension queue 1490. Compared 220691 event pairs, 4151 based on Foata normal form. 3153/28903 useless extension candidates. Maximal degree in co-relation 57073. Up to 7792 conditions per place. [2023-11-29 06:32:13,109 INFO L140 encePairwiseOnDemand]: 92/100 looper letters, 145 selfloop transitions, 9 changer transitions 0/189 dead transitions. [2023-11-29 06:32:13,109 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 104 places, 189 transitions, 1004 flow [2023-11-29 06:32:13,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 06:32:13,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-29 06:32:13,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 415 transitions. [2023-11-29 06:32:13,111 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6916666666666667 [2023-11-29 06:32:13,111 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 415 transitions. [2023-11-29 06:32:13,111 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 415 transitions. [2023-11-29 06:32:13,111 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 06:32:13,112 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 415 transitions. [2023-11-29 06:32:13,113 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 69.16666666666667) internal successors, (415), 6 states have internal predecessors, (415), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:32:13,114 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 100.0) internal successors, (700), 7 states have internal predecessors, (700), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:32:13,114 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 100.0) internal successors, (700), 7 states have internal predecessors, (700), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:32:13,115 INFO L175 Difference]: Start difference. First operand has 100 places, 90 transitions, 306 flow. Second operand 6 states and 415 transitions. [2023-11-29 06:32:13,115 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 104 places, 189 transitions, 1004 flow [2023-11-29 06:32:13,288 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 102 places, 189 transitions, 998 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-29 06:32:13,290 INFO L231 Difference]: Finished difference. Result has 103 places, 90 transitions, 325 flow [2023-11-29 06:32:13,290 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=100, PETRI_DIFFERENCE_MINUEND_FLOW=298, PETRI_DIFFERENCE_MINUEND_PLACES=97, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=89, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=80, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=325, PETRI_PLACES=103, PETRI_TRANSITIONS=90} [2023-11-29 06:32:13,290 INFO L281 CegarLoopForPetriNet]: 90 programPoint places, 13 predicate places. [2023-11-29 06:32:13,291 INFO L495 AbstractCegarLoop]: Abstraction has has 103 places, 90 transitions, 325 flow [2023-11-29 06:32:13,291 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 50.833333333333336) internal successors, (305), 6 states have internal predecessors, (305), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:32:13,291 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 06:32:13,291 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:32:13,291 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2023-11-29 06:32:13,291 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting thread3Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2023-11-29 06:32:13,292 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:32:13,292 INFO L85 PathProgramCache]: Analyzing trace with hash 780548258, now seen corresponding path program 1 times [2023-11-29 06:32:13,292 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:32:13,292 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [59192600] [2023-11-29 06:32:13,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:32:13,292 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:32:13,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:32:13,355 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 06:32:13,355 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:32:13,355 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [59192600] [2023-11-29 06:32:13,355 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [59192600] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:32:13,355 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:32:13,355 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 06:32:13,355 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [737021250] [2023-11-29 06:32:13,356 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:32:13,356 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 06:32:13,356 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:32:13,357 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 06:32:13,357 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-29 06:32:13,381 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 49 out of 100 [2023-11-29 06:32:13,382 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 103 places, 90 transitions, 325 flow. Second operand has 5 states, 5 states have (on average 51.4) internal successors, (257), 5 states have internal predecessors, (257), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:32:13,382 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 06:32:13,382 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 49 of 100 [2023-11-29 06:32:13,382 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 06:32:15,464 INFO L124 PetriNetUnfolderBase]: 17509/26410 cut-off events. [2023-11-29 06:32:15,464 INFO L125 PetriNetUnfolderBase]: For 40468/42897 co-relation queries the response was YES. [2023-11-29 06:32:15,559 INFO L83 FinitePrefix]: Finished finitePrefix Result has 72863 conditions, 26410 events. 17509/26410 cut-off events. For 40468/42897 co-relation queries the response was YES. Maximal size of possible extension queue 1463. Compared 205110 event pairs, 7263 based on Foata normal form. 2767/28327 useless extension candidates. Maximal degree in co-relation 58966. Up to 13219 conditions per place. [2023-11-29 06:32:15,577 INFO L140 encePairwiseOnDemand]: 93/100 looper letters, 0 selfloop transitions, 0 changer transitions 223/223 dead transitions. [2023-11-29 06:32:15,577 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 107 places, 223 transitions, 1227 flow [2023-11-29 06:32:15,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 06:32:15,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-29 06:32:15,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 445 transitions. [2023-11-29 06:32:15,579 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7416666666666667 [2023-11-29 06:32:15,579 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 445 transitions. [2023-11-29 06:32:15,579 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 445 transitions. [2023-11-29 06:32:15,579 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 06:32:15,579 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 445 transitions. [2023-11-29 06:32:15,581 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 74.16666666666667) internal successors, (445), 6 states have internal predecessors, (445), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:32:15,582 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 100.0) internal successors, (700), 7 states have internal predecessors, (700), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:32:15,582 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 100.0) internal successors, (700), 7 states have internal predecessors, (700), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:32:15,582 INFO L175 Difference]: Start difference. First operand has 103 places, 90 transitions, 325 flow. Second operand 6 states and 445 transitions. [2023-11-29 06:32:15,582 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 107 places, 223 transitions, 1227 flow [2023-11-29 06:32:16,085 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 102 places, 223 transitions, 1209 flow, removed 1 selfloop flow, removed 5 redundant places. [2023-11-29 06:32:16,086 INFO L231 Difference]: Finished difference. Result has 102 places, 0 transitions, 0 flow [2023-11-29 06:32:16,086 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=100, PETRI_DIFFERENCE_MINUEND_FLOW=301, PETRI_DIFFERENCE_MINUEND_PLACES=97, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=89, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=89, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=102, PETRI_TRANSITIONS=0} [2023-11-29 06:32:16,086 INFO L281 CegarLoopForPetriNet]: 90 programPoint places, 12 predicate places. [2023-11-29 06:32:16,086 INFO L495 AbstractCegarLoop]: Abstraction has has 102 places, 0 transitions, 0 flow [2023-11-29 06:32:16,087 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 51.4) internal successors, (257), 5 states have internal predecessors, (257), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:32:16,088 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (38 of 39 remaining) [2023-11-29 06:32:16,089 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (37 of 39 remaining) [2023-11-29 06:32:16,089 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (36 of 39 remaining) [2023-11-29 06:32:16,089 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (35 of 39 remaining) [2023-11-29 06:32:16,089 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (34 of 39 remaining) [2023-11-29 06:32:16,089 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (33 of 39 remaining) [2023-11-29 06:32:16,089 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (32 of 39 remaining) [2023-11-29 06:32:16,089 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (31 of 39 remaining) [2023-11-29 06:32:16,089 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (30 of 39 remaining) [2023-11-29 06:32:16,089 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (29 of 39 remaining) [2023-11-29 06:32:16,090 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (28 of 39 remaining) [2023-11-29 06:32:16,090 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (27 of 39 remaining) [2023-11-29 06:32:16,090 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (26 of 39 remaining) [2023-11-29 06:32:16,090 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (25 of 39 remaining) [2023-11-29 06:32:16,090 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (24 of 39 remaining) [2023-11-29 06:32:16,090 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (23 of 39 remaining) [2023-11-29 06:32:16,090 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (22 of 39 remaining) [2023-11-29 06:32:16,090 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 39 remaining) [2023-11-29 06:32:16,090 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (20 of 39 remaining) [2023-11-29 06:32:16,091 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (19 of 39 remaining) [2023-11-29 06:32:16,091 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (18 of 39 remaining) [2023-11-29 06:32:16,091 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 39 remaining) [2023-11-29 06:32:16,091 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 39 remaining) [2023-11-29 06:32:16,091 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 39 remaining) [2023-11-29 06:32:16,091 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 39 remaining) [2023-11-29 06:32:16,091 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 39 remaining) [2023-11-29 06:32:16,091 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 39 remaining) [2023-11-29 06:32:16,091 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 39 remaining) [2023-11-29 06:32:16,092 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 39 remaining) [2023-11-29 06:32:16,092 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 39 remaining) [2023-11-29 06:32:16,092 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 39 remaining) [2023-11-29 06:32:16,092 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 39 remaining) [2023-11-29 06:32:16,092 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 39 remaining) [2023-11-29 06:32:16,092 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 39 remaining) [2023-11-29 06:32:16,092 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 39 remaining) [2023-11-29 06:32:16,092 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 39 remaining) [2023-11-29 06:32:16,092 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 39 remaining) [2023-11-29 06:32:16,093 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 39 remaining) [2023-11-29 06:32:16,093 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 39 remaining) [2023-11-29 06:32:16,093 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2023-11-29 06:32:16,093 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:32:16,099 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-29 06:32:16,099 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-29 06:32:16,104 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.11 06:32:16 BasicIcfg [2023-11-29 06:32:16,104 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-29 06:32:16,104 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-29 06:32:16,105 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-29 06:32:16,105 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-29 06:32:16,105 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 06:31:27" (3/4) ... [2023-11-29 06:32:16,107 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-29 06:32:16,109 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2023-11-29 06:32:16,109 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2023-11-29 06:32:16,109 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread3 [2023-11-29 06:32:16,114 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 83 nodes and edges [2023-11-29 06:32:16,114 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 21 nodes and edges [2023-11-29 06:32:16,114 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-11-29 06:32:16,115 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2023-11-29 06:32:16,184 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_869d3727-efd5-4402-92fc-8c7c1e39f018/bin/uautomizer-verify-BQ2R08f2Ya/witness.graphml [2023-11-29 06:32:16,184 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_869d3727-efd5-4402-92fc-8c7c1e39f018/bin/uautomizer-verify-BQ2R08f2Ya/witness.yml [2023-11-29 06:32:16,185 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-29 06:32:16,185 INFO L158 Benchmark]: Toolchain (without parser) took 50029.20ms. Allocated memory was 161.5MB in the beginning and 4.2GB in the end (delta: 4.1GB). Free memory was 117.2MB in the beginning and 1.5GB in the end (delta: -1.4GB). Peak memory consumption was 2.7GB. Max. memory is 16.1GB. [2023-11-29 06:32:16,186 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 119.5MB. Free memory is still 65.6MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-29 06:32:16,186 INFO L158 Benchmark]: CACSL2BoogieTranslator took 244.10ms. Allocated memory is still 161.5MB. Free memory was 117.2MB in the beginning and 105.1MB in the end (delta: 12.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-29 06:32:16,186 INFO L158 Benchmark]: Boogie Procedure Inliner took 42.85ms. Allocated memory is still 161.5MB. Free memory was 105.1MB in the beginning and 103.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-29 06:32:16,187 INFO L158 Benchmark]: Boogie Preprocessor took 57.57ms. Allocated memory is still 161.5MB. Free memory was 102.5MB in the beginning and 100.0MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-29 06:32:16,187 INFO L158 Benchmark]: RCFGBuilder took 783.52ms. Allocated memory is still 161.5MB. Free memory was 100.0MB in the beginning and 81.8MB in the end (delta: 18.1MB). Peak memory consumption was 20.3MB. Max. memory is 16.1GB. [2023-11-29 06:32:16,188 INFO L158 Benchmark]: TraceAbstraction took 48813.90ms. Allocated memory was 161.5MB in the beginning and 4.2GB in the end (delta: 4.1GB). Free memory was 80.7MB in the beginning and 1.5GB in the end (delta: -1.4GB). Peak memory consumption was 2.6GB. Max. memory is 16.1GB. [2023-11-29 06:32:16,188 INFO L158 Benchmark]: Witness Printer took 80.31ms. Allocated memory is still 4.2GB. Free memory was 1.5GB in the beginning and 1.5GB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-11-29 06:32:16,190 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 119.5MB. Free memory is still 65.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 244.10ms. Allocated memory is still 161.5MB. Free memory was 117.2MB in the beginning and 105.1MB in the end (delta: 12.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 42.85ms. Allocated memory is still 161.5MB. Free memory was 105.1MB in the beginning and 103.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 57.57ms. Allocated memory is still 161.5MB. Free memory was 102.5MB in the beginning and 100.0MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 783.52ms. Allocated memory is still 161.5MB. Free memory was 100.0MB in the beginning and 81.8MB in the end (delta: 18.1MB). Peak memory consumption was 20.3MB. Max. memory is 16.1GB. * TraceAbstraction took 48813.90ms. Allocated memory was 161.5MB in the beginning and 4.2GB in the end (delta: 4.1GB). Free memory was 80.7MB in the beginning and 1.5GB in the end (delta: -1.4GB). Peak memory consumption was 2.6GB. Max. memory is 16.1GB. * Witness Printer took 80.31ms. Allocated memory is still 4.2GB. Free memory was 1.5GB in the beginning and 1.5GB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 87]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 87]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 88]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 89]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 88]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 89]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 87]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 87]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 88]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 89]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 88]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 89]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 87]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 87]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 88]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 89]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 88]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 89]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 161 locations, 39 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 48.7s, OverallIterations: 21, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 47.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2354 SdHoareTripleChecker+Valid, 3.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1996 mSDsluCounter, 246 SdHoareTripleChecker+Invalid, 2.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 140 mSDsCounter, 106 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 4653 IncrementalHoareTripleChecker+Invalid, 4759 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 106 mSolverCounterUnsat, 106 mSDtfsCounter, 4653 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 87 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 76 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=325occurred in iteration=20, InterpolantAutomatonStates: 97, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.1s InterpolantComputationTime, 264 NumberOfCodeBlocks, 264 NumberOfCodeBlocksAsserted, 21 NumberOfCheckSat, 243 ConstructedInterpolants, 0 QuantifiedInterpolants, 788 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 21 InterpolantComputations, 21 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 18 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-11-29 06:32:16,209 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_869d3727-efd5-4402-92fc-8c7c1e39f018/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE