./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/goblint-regression/06-symbeq_08-tricky_address3.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 6497de01 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_175314c3-1f5b-47f4-a260-621eedeebd5c/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_175314c3-1f5b-47f4-a260-621eedeebd5c/bin/uautomizer-verify-LYvppIcaGC/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_175314c3-1f5b-47f4-a260-621eedeebd5c/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_175314c3-1f5b-47f4-a260-621eedeebd5c/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/06-symbeq_08-tricky_address3.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_175314c3-1f5b-47f4-a260-621eedeebd5c/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_175314c3-1f5b-47f4-a260-621eedeebd5c/bin/uautomizer-verify-LYvppIcaGC --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 a812aad62102b8bb20af57f89ce6dbf7fb9ee1fa63f6f8ecf164ccf61d0713cb --- Real Ultimate output --- This is Ultimate 0.3.0-dev-6497de0 [2024-11-24 01:21:35,762 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-24 01:21:35,844 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_175314c3-1f5b-47f4-a260-621eedeebd5c/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-24 01:21:35,850 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-24 01:21:35,850 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-24 01:21:35,876 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-24 01:21:35,876 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-24 01:21:35,877 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-24 01:21:35,877 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-24 01:21:35,877 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-24 01:21:35,877 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-24 01:21:35,877 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-24 01:21:35,878 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-24 01:21:35,878 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-24 01:21:35,878 INFO L153 SettingsManager]: * Use SBE=true [2024-11-24 01:21:35,878 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-24 01:21:35,878 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-24 01:21:35,878 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-24 01:21:35,878 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-24 01:21:35,879 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-24 01:21:35,879 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-24 01:21:35,879 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-24 01:21:35,879 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-24 01:21:35,879 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-24 01:21:35,879 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-24 01:21:35,879 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-24 01:21:35,879 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-24 01:21:35,879 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-24 01:21:35,880 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-24 01:21:35,880 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-24 01:21:35,880 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-24 01:21:35,880 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 01:21:35,880 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-24 01:21:35,880 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 01:21:35,880 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 01:21:35,880 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-24 01:21:35,880 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 01:21:35,881 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-24 01:21:35,881 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 01:21:35,881 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 01:21:35,881 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-24 01:21:35,881 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-24 01:21:35,881 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-24 01:21:35,881 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-24 01:21:35,881 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-24 01:21:35,881 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-24 01:21:35,882 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-24 01:21:35,882 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-24 01:21:35,882 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-24 01:21:35,882 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-24 01:21:35,882 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_175314c3-1f5b-47f4-a260-621eedeebd5c/bin/uautomizer-verify-LYvppIcaGC 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 -> a812aad62102b8bb20af57f89ce6dbf7fb9ee1fa63f6f8ecf164ccf61d0713cb [2024-11-24 01:21:36,248 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-24 01:21:36,258 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-24 01:21:36,264 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-24 01:21:36,268 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-24 01:21:36,268 INFO L274 PluginConnector]: CDTParser initialized [2024-11-24 01:21:36,270 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_175314c3-1f5b-47f4-a260-621eedeebd5c/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/goblint-regression/06-symbeq_08-tricky_address3.i [2024-11-24 01:21:39,404 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_175314c3-1f5b-47f4-a260-621eedeebd5c/bin/uautomizer-verify-LYvppIcaGC/data/a886aa15d/38d165aa04834ea89a4039ef2d28ef1f/FLAG09570397a [2024-11-24 01:21:39,759 INFO L384 CDTParser]: Found 1 translation units. [2024-11-24 01:21:39,760 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_175314c3-1f5b-47f4-a260-621eedeebd5c/sv-benchmarks/c/goblint-regression/06-symbeq_08-tricky_address3.i [2024-11-24 01:21:39,783 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_175314c3-1f5b-47f4-a260-621eedeebd5c/bin/uautomizer-verify-LYvppIcaGC/data/a886aa15d/38d165aa04834ea89a4039ef2d28ef1f/FLAG09570397a [2024-11-24 01:21:39,806 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_175314c3-1f5b-47f4-a260-621eedeebd5c/bin/uautomizer-verify-LYvppIcaGC/data/a886aa15d/38d165aa04834ea89a4039ef2d28ef1f [2024-11-24 01:21:39,808 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-24 01:21:39,810 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-24 01:21:39,812 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-24 01:21:39,812 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-24 01:21:39,818 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-24 01:21:39,819 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 01:21:39" (1/1) ... [2024-11-24 01:21:39,820 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@50fee526 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:21:39, skipping insertion in model container [2024-11-24 01:21:39,820 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 01:21:39" (1/1) ... [2024-11-24 01:21:39,883 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-24 01:21:40,388 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 01:21:40,428 INFO L200 MainTranslator]: Completed pre-run [2024-11-24 01:21:40,481 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 01:21:40,560 INFO L204 MainTranslator]: Completed translation [2024-11-24 01:21:40,560 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:21:40 WrapperNode [2024-11-24 01:21:40,561 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-24 01:21:40,563 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-24 01:21:40,564 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-24 01:21:40,564 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-24 01:21:40,576 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:21:40" (1/1) ... [2024-11-24 01:21:40,602 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:21:40" (1/1) ... [2024-11-24 01:21:40,647 INFO L138 Inliner]: procedures = 265, calls = 74, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 137 [2024-11-24 01:21:40,648 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-24 01:21:40,648 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-24 01:21:40,648 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-24 01:21:40,648 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-24 01:21:40,665 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:21:40" (1/1) ... [2024-11-24 01:21:40,666 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:21:40" (1/1) ... [2024-11-24 01:21:40,674 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:21:40" (1/1) ... [2024-11-24 01:21:40,705 INFO L175 MemorySlicer]: Split 64 memory accesses to 1 slices as follows [64]. 100 percent of accesses are in the largest equivalence class. The 60 initializations are split as follows [60]. The 2 writes are split as follows [2]. [2024-11-24 01:21:40,705 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:21:40" (1/1) ... [2024-11-24 01:21:40,705 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:21:40" (1/1) ... [2024-11-24 01:21:40,719 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:21:40" (1/1) ... [2024-11-24 01:21:40,724 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:21:40" (1/1) ... [2024-11-24 01:21:40,731 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:21:40" (1/1) ... [2024-11-24 01:21:40,732 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:21:40" (1/1) ... [2024-11-24 01:21:40,733 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:21:40" (1/1) ... [2024-11-24 01:21:40,742 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-24 01:21:40,743 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-24 01:21:40,743 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-24 01:21:40,743 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-24 01:21:40,747 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:21:40" (1/1) ... [2024-11-24 01:21:40,756 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 01:21:40,771 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_175314c3-1f5b-47f4-a260-621eedeebd5c/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:21:40,782 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_175314c3-1f5b-47f4-a260-621eedeebd5c/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-24 01:21:40,784 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_175314c3-1f5b-47f4-a260-621eedeebd5c/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-24 01:21:40,806 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-24 01:21:40,806 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-24 01:21:40,806 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-24 01:21:40,806 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-24 01:21:40,806 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-24 01:21:40,806 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-11-24 01:21:40,806 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-11-24 01:21:40,807 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-24 01:21:40,807 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-24 01:21:40,807 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-24 01:21:40,809 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-24 01:21:40,952 INFO L234 CfgBuilder]: Building ICFG [2024-11-24 01:21:40,955 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-24 01:21:41,400 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-24 01:21:41,400 INFO L283 CfgBuilder]: Performing block encoding [2024-11-24 01:21:41,999 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-24 01:21:42,000 INFO L312 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-24 01:21:42,000 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 01:21:42 BoogieIcfgContainer [2024-11-24 01:21:42,001 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-24 01:21:42,003 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-24 01:21:42,003 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-24 01:21:42,010 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-24 01:21:42,011 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 01:21:39" (1/3) ... [2024-11-24 01:21:42,011 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@27b905b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 01:21:42, skipping insertion in model container [2024-11-24 01:21:42,011 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:21:40" (2/3) ... [2024-11-24 01:21:42,012 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@27b905b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 01:21:42, skipping insertion in model container [2024-11-24 01:21:42,012 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 01:21:42" (3/3) ... [2024-11-24 01:21:42,013 INFO L128 eAbstractionObserver]: Analyzing ICFG 06-symbeq_08-tricky_address3.i [2024-11-24 01:21:42,031 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-24 01:21:42,035 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG 06-symbeq_08-tricky_address3.i that has 2 procedures, 31 locations, 1 initial locations, 1 loop locations, and 8 error locations. [2024-11-24 01:21:42,035 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-24 01:21:42,086 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-24 01:21:42,128 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 34 places, 31 transitions, 66 flow [2024-11-24 01:21:42,171 INFO L124 PetriNetUnfolderBase]: 1/30 cut-off events. [2024-11-24 01:21:42,176 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-24 01:21:42,178 INFO L83 FinitePrefix]: Finished finitePrefix Result has 34 conditions, 30 events. 1/30 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 43 event pairs, 0 based on Foata normal form. 0/21 useless extension candidates. Maximal degree in co-relation 7. Up to 2 conditions per place. [2024-11-24 01:21:42,179 INFO L82 GeneralOperation]: Start removeDead. Operand has 34 places, 31 transitions, 66 flow [2024-11-24 01:21:42,185 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 33 places, 30 transitions, 63 flow [2024-11-24 01:21:42,202 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-24 01:21:42,219 INFO L333 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, 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;@663be28e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-24 01:21:42,219 INFO L334 AbstractCegarLoop]: Starting to check reachability of 13 error locations. [2024-11-24 01:21:42,227 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-24 01:21:42,227 INFO L124 PetriNetUnfolderBase]: 0/3 cut-off events. [2024-11-24 01:21:42,227 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-24 01:21:42,227 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 01:21:42,228 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2024-11-24 01:21:42,228 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-24 01:21:42,235 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:21:42,236 INFO L85 PathProgramCache]: Analyzing trace with hash 352925, now seen corresponding path program 1 times [2024-11-24 01:21:42,244 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:21:42,244 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1293821540] [2024-11-24 01:21:42,244 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:21:42,245 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:21:42,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:21:42,635 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 01:21:42,635 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:21:42,636 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1293821540] [2024-11-24 01:21:42,636 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1293821540] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:21:42,636 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:21:42,637 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-24 01:21:42,638 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [695079254] [2024-11-24 01:21:42,638 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:21:42,645 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 01:21:42,651 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:21:42,677 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 01:21:42,678 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-24 01:21:42,691 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 31 [2024-11-24 01:21:42,694 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 33 places, 30 transitions, 63 flow. Second operand has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:21:42,695 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 01:21:42,695 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 31 [2024-11-24 01:21:42,696 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 01:21:42,855 INFO L124 PetriNetUnfolderBase]: 43/147 cut-off events. [2024-11-24 01:21:42,855 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-24 01:21:42,856 INFO L83 FinitePrefix]: Finished finitePrefix Result has 258 conditions, 147 events. 43/147 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 550 event pairs, 42 based on Foata normal form. 1/131 useless extension candidates. Maximal degree in co-relation 233. Up to 105 conditions per place. [2024-11-24 01:21:42,858 INFO L140 encePairwiseOnDemand]: 25/31 looper letters, 19 selfloop transitions, 3 changer transitions 0/32 dead transitions. [2024-11-24 01:21:42,858 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 36 places, 32 transitions, 111 flow [2024-11-24 01:21:42,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 01:21:42,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-24 01:21:42,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 69 transitions. [2024-11-24 01:21:42,872 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5564516129032258 [2024-11-24 01:21:42,874 INFO L175 Difference]: Start difference. First operand has 33 places, 30 transitions, 63 flow. Second operand 4 states and 69 transitions. [2024-11-24 01:21:42,875 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 36 places, 32 transitions, 111 flow [2024-11-24 01:21:42,882 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 32 transitions, 110 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-24 01:21:42,886 INFO L231 Difference]: Finished difference. Result has 37 places, 32 transitions, 86 flow [2024-11-24 01:21:42,889 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=31, PETRI_DIFFERENCE_MINUEND_FLOW=62, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=86, PETRI_PLACES=37, PETRI_TRANSITIONS=32} [2024-11-24 01:21:42,892 INFO L279 CegarLoopForPetriNet]: 33 programPoint places, 4 predicate places. [2024-11-24 01:21:42,894 INFO L471 AbstractCegarLoop]: Abstraction has has 37 places, 32 transitions, 86 flow [2024-11-24 01:21:42,895 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:21:42,895 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 01:21:42,895 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1] [2024-11-24 01:21:42,895 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-24 01:21:42,896 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-24 01:21:42,897 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:21:42,897 INFO L85 PathProgramCache]: Analyzing trace with hash 1924399320, now seen corresponding path program 1 times [2024-11-24 01:21:42,897 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:21:42,897 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [735011367] [2024-11-24 01:21:42,898 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:21:42,898 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:21:42,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:21:43,153 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 01:21:43,154 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:21:43,154 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [735011367] [2024-11-24 01:21:43,154 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [735011367] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:21:43,154 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [303027269] [2024-11-24 01:21:43,154 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:21:43,154 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:21:43,154 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_175314c3-1f5b-47f4-a260-621eedeebd5c/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:21:43,159 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_175314c3-1f5b-47f4-a260-621eedeebd5c/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:21:43,160 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_175314c3-1f5b-47f4-a260-621eedeebd5c/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-24 01:21:43,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:21:43,287 INFO L256 TraceCheckSpWp]: Trace formula consists of 154 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-24 01:21:43,292 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:21:43,361 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 01:21:43,361 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 01:21:43,361 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [303027269] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:21:43,361 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-24 01:21:43,361 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2024-11-24 01:21:43,362 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1988385294] [2024-11-24 01:21:43,362 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:21:43,363 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-24 01:21:43,363 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:21:43,363 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-24 01:21:43,363 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-24 01:21:43,382 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 31 [2024-11-24 01:21:43,382 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 32 transitions, 86 flow. Second operand has 6 states, 6 states have (on average 11.833333333333334) internal successors, (71), 6 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:21:43,382 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 01:21:43,382 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 31 [2024-11-24 01:21:43,383 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 01:21:43,574 INFO L124 PetriNetUnfolderBase]: 43/146 cut-off events. [2024-11-24 01:21:43,574 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-11-24 01:21:43,577 INFO L83 FinitePrefix]: Finished finitePrefix Result has 267 conditions, 146 events. 43/146 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 547 event pairs, 42 based on Foata normal form. 1/130 useless extension candidates. Maximal degree in co-relation 250. Up to 100 conditions per place. [2024-11-24 01:21:43,579 INFO L140 encePairwiseOnDemand]: 26/31 looper letters, 15 selfloop transitions, 6 changer transitions 0/31 dead transitions. [2024-11-24 01:21:43,579 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 31 transitions, 124 flow [2024-11-24 01:21:43,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-24 01:21:43,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-24 01:21:43,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 88 transitions. [2024-11-24 01:21:43,582 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4731182795698925 [2024-11-24 01:21:43,583 INFO L175 Difference]: Start difference. First operand has 37 places, 32 transitions, 86 flow. Second operand 6 states and 88 transitions. [2024-11-24 01:21:43,583 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 31 transitions, 124 flow [2024-11-24 01:21:43,584 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 31 transitions, 122 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-24 01:21:43,587 INFO L231 Difference]: Finished difference. Result has 40 places, 31 transitions, 92 flow [2024-11-24 01:21:43,588 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=31, PETRI_DIFFERENCE_MINUEND_FLOW=80, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=31, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=92, PETRI_PLACES=40, PETRI_TRANSITIONS=31} [2024-11-24 01:21:43,588 INFO L279 CegarLoopForPetriNet]: 33 programPoint places, 7 predicate places. [2024-11-24 01:21:43,588 INFO L471 AbstractCegarLoop]: Abstraction has has 40 places, 31 transitions, 92 flow [2024-11-24 01:21:43,589 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.833333333333334) internal successors, (71), 6 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:21:43,589 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 01:21:43,589 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1] [2024-11-24 01:21:43,601 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_175314c3-1f5b-47f4-a260-621eedeebd5c/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-24 01:21:43,789 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_175314c3-1f5b-47f4-a260-621eedeebd5c/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:21:43,790 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-24 01:21:43,791 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:21:43,791 INFO L85 PathProgramCache]: Analyzing trace with hash -473162876, now seen corresponding path program 1 times [2024-11-24 01:21:43,791 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:21:43,792 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1534065202] [2024-11-24 01:21:43,792 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:21:43,792 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:21:43,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:21:43,920 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-24 01:21:43,920 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:21:43,920 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1534065202] [2024-11-24 01:21:43,920 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1534065202] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:21:43,920 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:21:43,920 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-24 01:21:43,920 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2130717172] [2024-11-24 01:21:43,920 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:21:43,921 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 01:21:43,921 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:21:43,921 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 01:21:43,921 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 01:21:43,932 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 31 [2024-11-24 01:21:43,932 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 31 transitions, 92 flow. Second operand has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:21:43,932 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 01:21:43,932 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 31 [2024-11-24 01:21:43,932 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 01:21:44,053 INFO L124 PetriNetUnfolderBase]: 43/145 cut-off events. [2024-11-24 01:21:44,053 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2024-11-24 01:21:44,054 INFO L83 FinitePrefix]: Finished finitePrefix Result has 269 conditions, 145 events. 43/145 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 547 event pairs, 42 based on Foata normal form. 1/130 useless extension candidates. Maximal degree in co-relation 246. Up to 103 conditions per place. [2024-11-24 01:21:44,055 INFO L140 encePairwiseOnDemand]: 28/31 looper letters, 16 selfloop transitions, 4 changer transitions 0/30 dead transitions. [2024-11-24 01:21:44,055 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 30 transitions, 128 flow [2024-11-24 01:21:44,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 01:21:44,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-24 01:21:44,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 52 transitions. [2024-11-24 01:21:44,059 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5591397849462365 [2024-11-24 01:21:44,059 INFO L175 Difference]: Start difference. First operand has 40 places, 31 transitions, 92 flow. Second operand 3 states and 52 transitions. [2024-11-24 01:21:44,059 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 30 transitions, 128 flow [2024-11-24 01:21:44,060 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 30 transitions, 106 flow, removed 3 selfloop flow, removed 6 redundant places. [2024-11-24 01:21:44,061 INFO L231 Difference]: Finished difference. Result has 35 places, 30 transitions, 74 flow [2024-11-24 01:21:44,061 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=31, PETRI_DIFFERENCE_MINUEND_FLOW=66, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=74, PETRI_PLACES=35, PETRI_TRANSITIONS=30} [2024-11-24 01:21:44,062 INFO L279 CegarLoopForPetriNet]: 33 programPoint places, 2 predicate places. [2024-11-24 01:21:44,062 INFO L471 AbstractCegarLoop]: Abstraction has has 35 places, 30 transitions, 74 flow [2024-11-24 01:21:44,062 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:21:44,062 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 01:21:44,062 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:21:44,062 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-24 01:21:44,062 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-24 01:21:44,065 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:21:44,065 INFO L85 PathProgramCache]: Analyzing trace with hash 134147993, now seen corresponding path program 1 times [2024-11-24 01:21:44,065 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:21:44,065 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1620266647] [2024-11-24 01:21:44,066 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:21:44,066 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:21:44,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:21:44,263 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 01:21:44,263 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:21:44,263 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1620266647] [2024-11-24 01:21:44,264 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1620266647] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:21:44,264 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2041010432] [2024-11-24 01:21:44,264 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:21:44,264 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:21:44,264 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_175314c3-1f5b-47f4-a260-621eedeebd5c/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:21:44,271 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_175314c3-1f5b-47f4-a260-621eedeebd5c/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:21:44,272 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_175314c3-1f5b-47f4-a260-621eedeebd5c/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-24 01:21:44,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:21:44,384 INFO L256 TraceCheckSpWp]: Trace formula consists of 178 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-24 01:21:44,385 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:21:44,417 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 01:21:44,417 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 01:21:44,468 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 01:21:44,468 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2041010432] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-24 01:21:44,468 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-24 01:21:44,468 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 9 [2024-11-24 01:21:44,468 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2142190723] [2024-11-24 01:21:44,468 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-24 01:21:44,468 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-24 01:21:44,469 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:21:44,469 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-24 01:21:44,469 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-24 01:21:44,497 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 31 [2024-11-24 01:21:44,498 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 30 transitions, 74 flow. Second operand has 10 states, 10 states have (on average 12.5) internal successors, (125), 10 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:21:44,498 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 01:21:44,498 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 31 [2024-11-24 01:21:44,498 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 01:21:44,710 INFO L124 PetriNetUnfolderBase]: 43/149 cut-off events. [2024-11-24 01:21:44,712 INFO L125 PetriNetUnfolderBase]: For 9/9 co-relation queries the response was YES. [2024-11-24 01:21:44,714 INFO L83 FinitePrefix]: Finished finitePrefix Result has 272 conditions, 149 events. 43/149 cut-off events. For 9/9 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 544 event pairs, 42 based on Foata normal form. 2/136 useless extension candidates. Maximal degree in co-relation 239. Up to 101 conditions per place. [2024-11-24 01:21:44,716 INFO L140 encePairwiseOnDemand]: 27/31 looper letters, 16 selfloop transitions, 7 changer transitions 0/33 dead transitions. [2024-11-24 01:21:44,717 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 33 transitions, 135 flow [2024-11-24 01:21:44,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-24 01:21:44,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-24 01:21:44,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 102 transitions. [2024-11-24 01:21:44,720 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4700460829493088 [2024-11-24 01:21:44,722 INFO L175 Difference]: Start difference. First operand has 35 places, 30 transitions, 74 flow. Second operand 7 states and 102 transitions. [2024-11-24 01:21:44,722 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 33 transitions, 135 flow [2024-11-24 01:21:44,723 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 33 transitions, 121 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-24 01:21:44,724 INFO L231 Difference]: Finished difference. Result has 41 places, 33 transitions, 100 flow [2024-11-24 01:21:44,724 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=31, PETRI_DIFFERENCE_MINUEND_FLOW=66, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=100, PETRI_PLACES=41, PETRI_TRANSITIONS=33} [2024-11-24 01:21:44,725 INFO L279 CegarLoopForPetriNet]: 33 programPoint places, 8 predicate places. [2024-11-24 01:21:44,727 INFO L471 AbstractCegarLoop]: Abstraction has has 41 places, 33 transitions, 100 flow [2024-11-24 01:21:44,727 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 12.5) internal successors, (125), 10 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:21:44,727 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 01:21:44,727 INFO L206 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:21:44,738 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_175314c3-1f5b-47f4-a260-621eedeebd5c/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-24 01:21:44,928 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_175314c3-1f5b-47f4-a260-621eedeebd5c/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:21:44,928 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-24 01:21:44,928 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:21:44,929 INFO L85 PathProgramCache]: Analyzing trace with hash -1470219911, now seen corresponding path program 2 times [2024-11-24 01:21:44,929 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:21:44,929 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [965710576] [2024-11-24 01:21:44,929 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-24 01:21:44,929 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:21:44,985 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-24 01:21:44,985 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-24 01:21:46,537 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-24 01:21:46,537 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:21:46,538 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [965710576] [2024-11-24 01:21:46,538 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [965710576] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:21:46,538 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:21:46,538 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 01:21:46,538 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [761279876] [2024-11-24 01:21:46,538 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:21:46,538 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 01:21:46,539 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:21:46,539 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 01:21:46,539 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-24 01:21:46,569 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 31 [2024-11-24 01:21:46,570 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 33 transitions, 100 flow. Second operand has 5 states, 5 states have (on average 12.8) internal successors, (64), 5 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:21:46,570 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 01:21:46,570 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 31 [2024-11-24 01:21:46,570 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 01:21:46,943 INFO L124 PetriNetUnfolderBase]: 49/151 cut-off events. [2024-11-24 01:21:46,944 INFO L125 PetriNetUnfolderBase]: For 15/15 co-relation queries the response was YES. [2024-11-24 01:21:46,945 INFO L83 FinitePrefix]: Finished finitePrefix Result has 296 conditions, 151 events. 49/151 cut-off events. For 15/15 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 499 event pairs, 20 based on Foata normal form. 8/150 useless extension candidates. Maximal degree in co-relation 258. Up to 79 conditions per place. [2024-11-24 01:21:46,946 INFO L140 encePairwiseOnDemand]: 24/31 looper letters, 31 selfloop transitions, 5 changer transitions 6/50 dead transitions. [2024-11-24 01:21:46,946 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 50 transitions, 218 flow [2024-11-24 01:21:46,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-24 01:21:46,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-24 01:21:46,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 107 transitions. [2024-11-24 01:21:46,951 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5752688172043011 [2024-11-24 01:21:46,951 INFO L175 Difference]: Start difference. First operand has 41 places, 33 transitions, 100 flow. Second operand 6 states and 107 transitions. [2024-11-24 01:21:46,951 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 50 transitions, 218 flow [2024-11-24 01:21:46,954 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 50 transitions, 214 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-24 01:21:46,955 INFO L231 Difference]: Finished difference. Result has 47 places, 34 transitions, 123 flow [2024-11-24 01:21:46,956 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=31, PETRI_DIFFERENCE_MINUEND_FLOW=96, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=33, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=123, PETRI_PLACES=47, PETRI_TRANSITIONS=34} [2024-11-24 01:21:46,956 INFO L279 CegarLoopForPetriNet]: 33 programPoint places, 14 predicate places. [2024-11-24 01:21:46,958 INFO L471 AbstractCegarLoop]: Abstraction has has 47 places, 34 transitions, 123 flow [2024-11-24 01:21:46,958 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 5 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:21:46,959 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 01:21:46,959 INFO L206 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:21:46,959 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-24 01:21:46,959 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-24 01:21:46,959 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:21:46,959 INFO L85 PathProgramCache]: Analyzing trace with hash -1469833811, now seen corresponding path program 1 times [2024-11-24 01:21:46,960 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:21:46,960 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1756954124] [2024-11-24 01:21:46,960 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:21:46,962 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:21:46,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:21:47,071 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-24 01:21:47,071 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:21:47,072 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1756954124] [2024-11-24 01:21:47,072 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1756954124] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:21:47,072 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:21:47,072 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 01:21:47,072 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1100272224] [2024-11-24 01:21:47,072 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:21:47,072 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 01:21:47,072 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:21:47,073 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 01:21:47,073 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-24 01:21:47,080 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 31 [2024-11-24 01:21:47,081 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 34 transitions, 123 flow. Second operand has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:21:47,081 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 01:21:47,081 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 31 [2024-11-24 01:21:47,081 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 01:21:47,197 INFO L124 PetriNetUnfolderBase]: 39/142 cut-off events. [2024-11-24 01:21:47,198 INFO L125 PetriNetUnfolderBase]: For 48/48 co-relation queries the response was YES. [2024-11-24 01:21:47,198 INFO L83 FinitePrefix]: Finished finitePrefix Result has 315 conditions, 142 events. 39/142 cut-off events. For 48/48 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 532 event pairs, 2 based on Foata normal form. 7/135 useless extension candidates. Maximal degree in co-relation 288. Up to 59 conditions per place. [2024-11-24 01:21:47,199 INFO L140 encePairwiseOnDemand]: 27/31 looper letters, 34 selfloop transitions, 3 changer transitions 0/45 dead transitions. [2024-11-24 01:21:47,199 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 45 transitions, 233 flow [2024-11-24 01:21:47,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 01:21:47,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-24 01:21:47,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 76 transitions. [2024-11-24 01:21:47,201 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6129032258064516 [2024-11-24 01:21:47,201 INFO L175 Difference]: Start difference. First operand has 47 places, 34 transitions, 123 flow. Second operand 4 states and 76 transitions. [2024-11-24 01:21:47,201 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 45 transitions, 233 flow [2024-11-24 01:21:47,203 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 45 transitions, 222 flow, removed 2 selfloop flow, removed 3 redundant places. [2024-11-24 01:21:47,204 INFO L231 Difference]: Finished difference. Result has 45 places, 33 transitions, 118 flow [2024-11-24 01:21:47,205 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=31, PETRI_DIFFERENCE_MINUEND_FLOW=112, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=33, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=118, PETRI_PLACES=45, PETRI_TRANSITIONS=33} [2024-11-24 01:21:47,205 INFO L279 CegarLoopForPetriNet]: 33 programPoint places, 12 predicate places. [2024-11-24 01:21:47,205 INFO L471 AbstractCegarLoop]: Abstraction has has 45 places, 33 transitions, 118 flow [2024-11-24 01:21:47,206 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:21:47,206 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 01:21:47,207 INFO L206 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:21:47,207 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-24 01:21:47,207 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-24 01:21:47,208 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:21:47,208 INFO L85 PathProgramCache]: Analyzing trace with hash 1679792488, now seen corresponding path program 1 times [2024-11-24 01:21:47,208 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:21:47,209 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [79708151] [2024-11-24 01:21:47,209 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:21:47,209 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:21:47,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:21:47,318 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-24 01:21:47,319 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:21:47,319 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [79708151] [2024-11-24 01:21:47,319 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [79708151] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:21:47,319 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:21:47,319 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 01:21:47,319 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [829241239] [2024-11-24 01:21:47,319 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:21:47,319 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 01:21:47,319 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:21:47,320 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 01:21:47,320 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-24 01:21:47,328 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 31 [2024-11-24 01:21:47,328 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 33 transitions, 118 flow. Second operand has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:21:47,328 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 01:21:47,328 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 31 [2024-11-24 01:21:47,328 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 01:21:47,434 INFO L124 PetriNetUnfolderBase]: 33/118 cut-off events. [2024-11-24 01:21:47,434 INFO L125 PetriNetUnfolderBase]: For 50/50 co-relation queries the response was YES. [2024-11-24 01:21:47,435 INFO L83 FinitePrefix]: Finished finitePrefix Result has 279 conditions, 118 events. 33/118 cut-off events. For 50/50 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 361 event pairs, 14 based on Foata normal form. 7/121 useless extension candidates. Maximal degree in co-relation 240. Up to 50 conditions per place. [2024-11-24 01:21:47,435 INFO L140 encePairwiseOnDemand]: 27/31 looper letters, 33 selfloop transitions, 3 changer transitions 0/44 dead transitions. [2024-11-24 01:21:47,435 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 44 transitions, 224 flow [2024-11-24 01:21:47,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 01:21:47,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-24 01:21:47,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 75 transitions. [2024-11-24 01:21:47,440 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6048387096774194 [2024-11-24 01:21:47,440 INFO L175 Difference]: Start difference. First operand has 45 places, 33 transitions, 118 flow. Second operand 4 states and 75 transitions. [2024-11-24 01:21:47,440 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 44 transitions, 224 flow [2024-11-24 01:21:47,441 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 44 transitions, 218 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-24 01:21:47,442 INFO L231 Difference]: Finished difference. Result has 44 places, 32 transitions, 116 flow [2024-11-24 01:21:47,442 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=31, PETRI_DIFFERENCE_MINUEND_FLOW=110, PETRI_DIFFERENCE_MINUEND_PLACES=41, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=32, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=116, PETRI_PLACES=44, PETRI_TRANSITIONS=32} [2024-11-24 01:21:47,445 INFO L279 CegarLoopForPetriNet]: 33 programPoint places, 11 predicate places. [2024-11-24 01:21:47,445 INFO L471 AbstractCegarLoop]: Abstraction has has 44 places, 32 transitions, 116 flow [2024-11-24 01:21:47,445 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:21:47,445 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 01:21:47,445 INFO L206 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:21:47,446 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-24 01:21:47,446 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-24 01:21:47,446 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:21:47,446 INFO L85 PathProgramCache]: Analyzing trace with hash 533959951, now seen corresponding path program 1 times [2024-11-24 01:21:47,446 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:21:47,446 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [499328311] [2024-11-24 01:21:47,447 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:21:47,447 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:21:47,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:21:47,643 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 01:21:47,643 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:21:47,643 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [499328311] [2024-11-24 01:21:47,644 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [499328311] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:21:47,644 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2038643461] [2024-11-24 01:21:47,644 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:21:47,644 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:21:47,644 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_175314c3-1f5b-47f4-a260-621eedeebd5c/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:21:47,647 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_175314c3-1f5b-47f4-a260-621eedeebd5c/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:21:47,649 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_175314c3-1f5b-47f4-a260-621eedeebd5c/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-24 01:21:47,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:21:47,748 INFO L256 TraceCheckSpWp]: Trace formula consists of 216 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-24 01:21:47,749 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:21:47,799 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 01:21:47,799 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 01:21:47,932 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 01:21:47,932 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2038643461] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-24 01:21:47,933 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-24 01:21:47,933 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 17 [2024-11-24 01:21:47,933 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1718679344] [2024-11-24 01:21:47,933 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-24 01:21:47,933 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-24 01:21:47,934 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:21:47,934 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-24 01:21:47,935 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2024-11-24 01:21:47,962 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 31 [2024-11-24 01:21:47,963 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 44 places, 32 transitions, 116 flow. Second operand has 18 states, 18 states have (on average 12.333333333333334) internal successors, (222), 18 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) [2024-11-24 01:21:47,964 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 01:21:47,964 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 31 [2024-11-24 01:21:47,964 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 01:21:48,196 INFO L124 PetriNetUnfolderBase]: 33/135 cut-off events. [2024-11-24 01:21:48,196 INFO L125 PetriNetUnfolderBase]: For 67/67 co-relation queries the response was YES. [2024-11-24 01:21:48,196 INFO L83 FinitePrefix]: Finished finitePrefix Result has 320 conditions, 135 events. 33/135 cut-off events. For 67/67 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 397 event pairs, 32 based on Foata normal form. 4/133 useless extension candidates. Maximal degree in co-relation 245. Up to 82 conditions per place. [2024-11-24 01:21:48,197 INFO L140 encePairwiseOnDemand]: 27/31 looper letters, 17 selfloop transitions, 15 changer transitions 0/40 dead transitions. [2024-11-24 01:21:48,197 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 40 transitions, 228 flow [2024-11-24 01:21:48,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-24 01:21:48,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2024-11-24 01:21:48,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 200 transitions. [2024-11-24 01:21:48,199 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.43010752688172044 [2024-11-24 01:21:48,199 INFO L175 Difference]: Start difference. First operand has 44 places, 32 transitions, 116 flow. Second operand 15 states and 200 transitions. [2024-11-24 01:21:48,199 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 40 transitions, 228 flow [2024-11-24 01:21:48,200 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 40 transitions, 222 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-24 01:21:48,201 INFO L231 Difference]: Finished difference. Result has 59 places, 40 transitions, 207 flow [2024-11-24 01:21:48,202 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=31, PETRI_DIFFERENCE_MINUEND_FLOW=110, PETRI_DIFFERENCE_MINUEND_PLACES=41, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=32, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=207, PETRI_PLACES=59, PETRI_TRANSITIONS=40} [2024-11-24 01:21:48,202 INFO L279 CegarLoopForPetriNet]: 33 programPoint places, 26 predicate places. [2024-11-24 01:21:48,202 INFO L471 AbstractCegarLoop]: Abstraction has has 59 places, 40 transitions, 207 flow [2024-11-24 01:21:48,203 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 12.333333333333334) internal successors, (222), 18 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) [2024-11-24 01:21:48,203 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 01:21:48,203 INFO L206 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:21:48,213 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_175314c3-1f5b-47f4-a260-621eedeebd5c/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-24 01:21:48,403 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_175314c3-1f5b-47f4-a260-621eedeebd5c/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:21:48,404 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-24 01:21:48,404 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:21:48,404 INFO L85 PathProgramCache]: Analyzing trace with hash 1881374927, now seen corresponding path program 2 times [2024-11-24 01:21:48,404 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:21:48,404 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1973545640] [2024-11-24 01:21:48,404 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-24 01:21:48,404 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:21:48,488 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-24 01:21:48,488 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-24 01:21:49,128 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-24 01:21:49,129 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:21:49,129 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1973545640] [2024-11-24 01:21:49,129 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1973545640] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:21:49,129 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:21:49,129 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 01:21:49,129 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [323346809] [2024-11-24 01:21:49,129 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:21:49,129 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 01:21:49,130 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:21:49,130 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 01:21:49,130 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-24 01:21:49,141 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 31 [2024-11-24 01:21:49,142 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 59 places, 40 transitions, 207 flow. Second operand has 5 states, 5 states have (on average 13.0) internal successors, (65), 5 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:21:49,142 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 01:21:49,142 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 31 [2024-11-24 01:21:49,142 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 01:21:49,413 INFO L124 PetriNetUnfolderBase]: 36/136 cut-off events. [2024-11-24 01:21:49,413 INFO L125 PetriNetUnfolderBase]: For 95/95 co-relation queries the response was YES. [2024-11-24 01:21:49,414 INFO L83 FinitePrefix]: Finished finitePrefix Result has 340 conditions, 136 events. 36/136 cut-off events. For 95/95 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 381 event pairs, 8 based on Foata normal form. 14/150 useless extension candidates. Maximal degree in co-relation 241. Up to 57 conditions per place. [2024-11-24 01:21:49,415 INFO L140 encePairwiseOnDemand]: 24/31 looper letters, 40 selfloop transitions, 6 changer transitions 4/56 dead transitions. [2024-11-24 01:21:49,415 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 56 transitions, 351 flow [2024-11-24 01:21:49,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-24 01:21:49,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-24 01:21:49,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 107 transitions. [2024-11-24 01:21:49,416 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5752688172043011 [2024-11-24 01:21:49,416 INFO L175 Difference]: Start difference. First operand has 59 places, 40 transitions, 207 flow. Second operand 6 states and 107 transitions. [2024-11-24 01:21:49,416 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 64 places, 56 transitions, 351 flow [2024-11-24 01:21:49,422 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 56 transitions, 341 flow, removed 1 selfloop flow, removed 4 redundant places. [2024-11-24 01:21:49,424 INFO L231 Difference]: Finished difference. Result has 64 places, 43 transitions, 237 flow [2024-11-24 01:21:49,424 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=31, PETRI_DIFFERENCE_MINUEND_FLOW=197, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=237, PETRI_PLACES=64, PETRI_TRANSITIONS=43} [2024-11-24 01:21:49,425 INFO L279 CegarLoopForPetriNet]: 33 programPoint places, 31 predicate places. [2024-11-24 01:21:49,425 INFO L471 AbstractCegarLoop]: Abstraction has has 64 places, 43 transitions, 237 flow [2024-11-24 01:21:49,425 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 5 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:21:49,425 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 01:21:49,425 INFO L206 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:21:49,425 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-24 01:21:49,425 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-24 01:21:49,430 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:21:49,430 INFO L85 PathProgramCache]: Analyzing trace with hash 1692721394, now seen corresponding path program 1 times [2024-11-24 01:21:49,430 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:21:49,430 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1822657601] [2024-11-24 01:21:49,430 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:21:49,430 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:21:49,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:21:49,935 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 01:21:49,935 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:21:49,936 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1822657601] [2024-11-24 01:21:49,936 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1822657601] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:21:49,937 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [694573615] [2024-11-24 01:21:49,937 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:21:49,937 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:21:49,937 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_175314c3-1f5b-47f4-a260-621eedeebd5c/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:21:49,940 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_175314c3-1f5b-47f4-a260-621eedeebd5c/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:21:49,944 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_175314c3-1f5b-47f4-a260-621eedeebd5c/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-24 01:21:50,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:21:50,086 INFO L256 TraceCheckSpWp]: Trace formula consists of 279 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-24 01:21:50,088 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:21:50,193 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 01:21:50,193 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 01:21:50,505 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 01:21:50,506 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [694573615] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-24 01:21:50,506 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-24 01:21:50,506 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16, 16] total 22 [2024-11-24 01:21:50,506 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1228848997] [2024-11-24 01:21:50,506 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-24 01:21:50,506 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-24 01:21:50,507 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:21:50,507 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-24 01:21:50,507 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2024-11-24 01:21:50,560 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 31 [2024-11-24 01:21:50,561 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 43 transitions, 237 flow. Second operand has 23 states, 23 states have (on average 12.478260869565217) internal successors, (287), 23 states have internal predecessors, (287), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:21:50,561 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 01:21:50,561 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 31 [2024-11-24 01:21:50,562 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 01:21:50,851 INFO L124 PetriNetUnfolderBase]: 32/135 cut-off events. [2024-11-24 01:21:50,851 INFO L125 PetriNetUnfolderBase]: For 176/176 co-relation queries the response was YES. [2024-11-24 01:21:50,852 INFO L83 FinitePrefix]: Finished finitePrefix Result has 393 conditions, 135 events. 32/135 cut-off events. For 176/176 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 326 event pairs, 28 based on Foata normal form. 3/137 useless extension candidates. Maximal degree in co-relation 370. Up to 81 conditions per place. [2024-11-24 01:21:50,853 INFO L140 encePairwiseOnDemand]: 27/31 looper letters, 20 selfloop transitions, 21 changer transitions 0/49 dead transitions. [2024-11-24 01:21:50,853 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 83 places, 49 transitions, 373 flow [2024-11-24 01:21:50,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-11-24 01:21:50,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2024-11-24 01:21:50,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 271 transitions. [2024-11-24 01:21:50,855 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4162826420890937 [2024-11-24 01:21:50,855 INFO L175 Difference]: Start difference. First operand has 64 places, 43 transitions, 237 flow. Second operand 21 states and 271 transitions. [2024-11-24 01:21:50,855 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 83 places, 49 transitions, 373 flow [2024-11-24 01:21:50,858 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 81 places, 49 transitions, 365 flow, removed 2 selfloop flow, removed 2 redundant places. [2024-11-24 01:21:50,859 INFO L231 Difference]: Finished difference. Result has 84 places, 49 transitions, 340 flow [2024-11-24 01:21:50,859 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=31, PETRI_DIFFERENCE_MINUEND_FLOW=229, PETRI_DIFFERENCE_MINUEND_PLACES=61, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=340, PETRI_PLACES=84, PETRI_TRANSITIONS=49} [2024-11-24 01:21:50,860 INFO L279 CegarLoopForPetriNet]: 33 programPoint places, 51 predicate places. [2024-11-24 01:21:50,860 INFO L471 AbstractCegarLoop]: Abstraction has has 84 places, 49 transitions, 340 flow [2024-11-24 01:21:50,860 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 12.478260869565217) internal successors, (287), 23 states have internal predecessors, (287), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:21:50,860 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 01:21:50,861 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:21:50,871 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_175314c3-1f5b-47f4-a260-621eedeebd5c/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-24 01:21:51,065 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_175314c3-1f5b-47f4-a260-621eedeebd5c/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-11-24 01:21:51,065 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-24 01:21:51,066 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:21:51,066 INFO L85 PathProgramCache]: Analyzing trace with hash 2095354355, now seen corresponding path program 2 times [2024-11-24 01:21:51,066 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:21:51,066 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1744665168] [2024-11-24 01:21:51,066 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-24 01:21:51,066 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:21:51,176 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-24 01:21:51,177 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-24 01:21:59,265 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-11-24 01:21:59,266 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:21:59,266 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1744665168] [2024-11-24 01:21:59,266 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1744665168] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:21:59,266 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:21:59,266 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-24 01:21:59,266 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1623125626] [2024-11-24 01:21:59,266 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:21:59,267 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-24 01:21:59,267 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:21:59,268 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-24 01:21:59,268 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2024-11-24 01:21:59,300 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 31 [2024-11-24 01:21:59,300 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 84 places, 49 transitions, 340 flow. Second operand has 10 states, 10 states have (on average 8.5) internal successors, (85), 10 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:21:59,301 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 01:21:59,301 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 31 [2024-11-24 01:21:59,301 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 01:22:01,979 INFO L124 PetriNetUnfolderBase]: 70/209 cut-off events. [2024-11-24 01:22:01,979 INFO L125 PetriNetUnfolderBase]: For 239/239 co-relation queries the response was YES. [2024-11-24 01:22:01,980 INFO L83 FinitePrefix]: Finished finitePrefix Result has 620 conditions, 209 events. 70/209 cut-off events. For 239/239 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 670 event pairs, 12 based on Foata normal form. 3/212 useless extension candidates. Maximal degree in co-relation 457. Up to 44 conditions per place. [2024-11-24 01:22:01,981 INFO L140 encePairwiseOnDemand]: 21/31 looper letters, 65 selfloop transitions, 17 changer transitions 3/87 dead transitions. [2024-11-24 01:22:01,981 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 94 places, 87 transitions, 626 flow [2024-11-24 01:22:01,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-24 01:22:01,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2024-11-24 01:22:01,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 144 transitions. [2024-11-24 01:22:01,983 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4222873900293255 [2024-11-24 01:22:01,983 INFO L175 Difference]: Start difference. First operand has 84 places, 49 transitions, 340 flow. Second operand 11 states and 144 transitions. [2024-11-24 01:22:01,983 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 94 places, 87 transitions, 626 flow [2024-11-24 01:22:01,987 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 81 places, 87 transitions, 583 flow, removed 1 selfloop flow, removed 13 redundant places. [2024-11-24 01:22:01,989 INFO L231 Difference]: Finished difference. Result has 87 places, 60 transitions, 410 flow [2024-11-24 01:22:01,989 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=31, PETRI_DIFFERENCE_MINUEND_FLOW=297, PETRI_DIFFERENCE_MINUEND_PLACES=71, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=49, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=410, PETRI_PLACES=87, PETRI_TRANSITIONS=60} [2024-11-24 01:22:01,990 INFO L279 CegarLoopForPetriNet]: 33 programPoint places, 54 predicate places. [2024-11-24 01:22:01,990 INFO L471 AbstractCegarLoop]: Abstraction has has 87 places, 60 transitions, 410 flow [2024-11-24 01:22:01,990 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 8.5) internal successors, (85), 10 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:22:01,990 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 01:22:01,990 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:22:01,990 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-24 01:22:01,991 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-24 01:22:01,991 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:22:01,991 INFO L85 PathProgramCache]: Analyzing trace with hash -63403871, now seen corresponding path program 3 times [2024-11-24 01:22:01,992 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:22:01,992 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1116852035] [2024-11-24 01:22:01,992 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-24 01:22:01,992 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:22:02,050 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2024-11-24 01:22:02,050 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-24 01:22:06,873 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-11-24 01:22:06,873 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:22:06,873 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1116852035] [2024-11-24 01:22:06,873 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1116852035] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:22:06,873 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:22:06,873 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-24 01:22:06,873 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1274317862] [2024-11-24 01:22:06,873 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:22:06,874 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-24 01:22:06,874 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:22:06,874 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-24 01:22:06,874 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2024-11-24 01:22:06,920 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 31 [2024-11-24 01:22:06,920 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 87 places, 60 transitions, 410 flow. Second operand has 11 states, 11 states have (on average 8.363636363636363) internal successors, (92), 11 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:22:06,920 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 01:22:06,920 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 31 [2024-11-24 01:22:06,920 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 01:22:08,956 INFO L124 PetriNetUnfolderBase]: 80/247 cut-off events. [2024-11-24 01:22:08,956 INFO L125 PetriNetUnfolderBase]: For 411/413 co-relation queries the response was YES. [2024-11-24 01:22:08,957 INFO L83 FinitePrefix]: Finished finitePrefix Result has 828 conditions, 247 events. 80/247 cut-off events. For 411/413 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 893 event pairs, 22 based on Foata normal form. 5/252 useless extension candidates. Maximal degree in co-relation 743. Up to 65 conditions per place. [2024-11-24 01:22:08,958 INFO L140 encePairwiseOnDemand]: 21/31 looper letters, 66 selfloop transitions, 27 changer transitions 7/102 dead transitions. [2024-11-24 01:22:08,958 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 103 places, 102 transitions, 816 flow [2024-11-24 01:22:08,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-24 01:22:08,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2024-11-24 01:22:08,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 190 transitions. [2024-11-24 01:22:08,960 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.3605313092979127 [2024-11-24 01:22:08,960 INFO L175 Difference]: Start difference. First operand has 87 places, 60 transitions, 410 flow. Second operand 17 states and 190 transitions. [2024-11-24 01:22:08,960 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 103 places, 102 transitions, 816 flow [2024-11-24 01:22:08,965 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 100 places, 102 transitions, 786 flow, removed 1 selfloop flow, removed 3 redundant places. [2024-11-24 01:22:08,966 INFO L231 Difference]: Finished difference. Result has 104 places, 73 transitions, 563 flow [2024-11-24 01:22:08,967 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=31, PETRI_DIFFERENCE_MINUEND_FLOW=395, PETRI_DIFFERENCE_MINUEND_PLACES=84, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=60, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=563, PETRI_PLACES=104, PETRI_TRANSITIONS=73} [2024-11-24 01:22:08,967 INFO L279 CegarLoopForPetriNet]: 33 programPoint places, 71 predicate places. [2024-11-24 01:22:08,967 INFO L471 AbstractCegarLoop]: Abstraction has has 104 places, 73 transitions, 563 flow [2024-11-24 01:22:08,967 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.363636363636363) internal successors, (92), 11 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:22:08,967 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 01:22:08,968 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:22:08,968 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-24 01:22:08,968 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-24 01:22:08,968 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:22:08,969 INFO L85 PathProgramCache]: Analyzing trace with hash 1802428730, now seen corresponding path program 1 times [2024-11-24 01:22:08,969 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:22:08,969 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [693245214] [2024-11-24 01:22:08,969 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:22:08,969 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:22:09,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:22:12,955 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-11-24 01:22:12,955 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:22:12,956 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [693245214] [2024-11-24 01:22:12,956 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [693245214] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:22:12,956 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:22:12,956 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-24 01:22:12,956 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [637078532] [2024-11-24 01:22:12,956 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:22:12,956 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-24 01:22:12,956 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:22:12,957 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-24 01:22:12,957 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2024-11-24 01:22:12,975 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 31 [2024-11-24 01:22:12,975 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 104 places, 73 transitions, 563 flow. Second operand has 10 states, 10 states have (on average 8.5) internal successors, (85), 10 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:22:12,975 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 01:22:12,975 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 31 [2024-11-24 01:22:12,975 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 01:22:14,327 INFO L124 PetriNetUnfolderBase]: 83/261 cut-off events. [2024-11-24 01:22:14,327 INFO L125 PetriNetUnfolderBase]: For 527/531 co-relation queries the response was YES. [2024-11-24 01:22:14,328 INFO L83 FinitePrefix]: Finished finitePrefix Result has 942 conditions, 261 events. 83/261 cut-off events. For 527/531 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 1007 event pairs, 30 based on Foata normal form. 7/268 useless extension candidates. Maximal degree in co-relation 847. Up to 125 conditions per place. [2024-11-24 01:22:14,329 INFO L140 encePairwiseOnDemand]: 20/31 looper letters, 66 selfloop transitions, 32 changer transitions 5/105 dead transitions. [2024-11-24 01:22:14,329 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 117 places, 105 transitions, 918 flow [2024-11-24 01:22:14,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-24 01:22:14,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2024-11-24 01:22:14,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 184 transitions. [2024-11-24 01:22:14,331 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.3709677419354839 [2024-11-24 01:22:14,331 INFO L175 Difference]: Start difference. First operand has 104 places, 73 transitions, 563 flow. Second operand 16 states and 184 transitions. [2024-11-24 01:22:14,331 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 117 places, 105 transitions, 918 flow [2024-11-24 01:22:14,337 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 111 places, 105 transitions, 844 flow, removed 12 selfloop flow, removed 6 redundant places. [2024-11-24 01:22:14,339 INFO L231 Difference]: Finished difference. Result has 116 places, 84 transitions, 669 flow [2024-11-24 01:22:14,340 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=31, PETRI_DIFFERENCE_MINUEND_FLOW=505, PETRI_DIFFERENCE_MINUEND_PLACES=96, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=73, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=21, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=49, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=669, PETRI_PLACES=116, PETRI_TRANSITIONS=84} [2024-11-24 01:22:14,341 INFO L279 CegarLoopForPetriNet]: 33 programPoint places, 83 predicate places. [2024-11-24 01:22:14,342 INFO L471 AbstractCegarLoop]: Abstraction has has 116 places, 84 transitions, 669 flow [2024-11-24 01:22:14,342 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 8.5) internal successors, (85), 10 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:22:14,342 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 01:22:14,343 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:22:14,343 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-24 01:22:14,343 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-24 01:22:14,343 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:22:14,344 INFO L85 PathProgramCache]: Analyzing trace with hash 195808318, now seen corresponding path program 2 times [2024-11-24 01:22:14,344 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:22:14,344 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [118071571] [2024-11-24 01:22:14,344 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-24 01:22:14,345 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:22:14,377 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-24 01:22:14,378 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-24 01:22:22,211 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-11-24 01:22:22,211 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:22:22,211 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [118071571] [2024-11-24 01:22:22,211 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [118071571] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:22:22,211 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:22:22,211 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-24 01:22:22,211 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2096348802] [2024-11-24 01:22:22,211 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:22:22,212 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-24 01:22:22,212 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:22:22,212 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-24 01:22:22,212 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2024-11-24 01:22:22,329 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 31 [2024-11-24 01:22:22,330 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 116 places, 84 transitions, 669 flow. Second operand has 11 states, 11 states have (on average 8.363636363636363) internal successors, (92), 11 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:22:22,330 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 01:22:22,330 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 31 [2024-11-24 01:22:22,330 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 01:22:25,013 INFO L124 PetriNetUnfolderBase]: 87/279 cut-off events. [2024-11-24 01:22:25,013 INFO L125 PetriNetUnfolderBase]: For 612/616 co-relation queries the response was YES. [2024-11-24 01:22:25,014 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1033 conditions, 279 events. 87/279 cut-off events. For 612/616 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 1146 event pairs, 35 based on Foata normal form. 4/283 useless extension candidates. Maximal degree in co-relation 939. Up to 133 conditions per place. [2024-11-24 01:22:25,015 INFO L140 encePairwiseOnDemand]: 19/31 looper letters, 66 selfloop transitions, 37 changer transitions 7/112 dead transitions. [2024-11-24 01:22:25,016 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 133 places, 112 transitions, 1028 flow [2024-11-24 01:22:25,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-24 01:22:25,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2024-11-24 01:22:25,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 203 transitions. [2024-11-24 01:22:25,017 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.34465195246179964 [2024-11-24 01:22:25,018 INFO L175 Difference]: Start difference. First operand has 116 places, 84 transitions, 669 flow. Second operand 19 states and 203 transitions. [2024-11-24 01:22:25,018 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 133 places, 112 transitions, 1028 flow [2024-11-24 01:22:25,024 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 130 places, 112 transitions, 994 flow, removed 4 selfloop flow, removed 3 redundant places. [2024-11-24 01:22:25,027 INFO L231 Difference]: Finished difference. Result has 135 places, 90 transitions, 794 flow [2024-11-24 01:22:25,027 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=31, PETRI_DIFFERENCE_MINUEND_FLOW=642, PETRI_DIFFERENCE_MINUEND_PLACES=112, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=84, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=31, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=50, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=794, PETRI_PLACES=135, PETRI_TRANSITIONS=90} [2024-11-24 01:22:25,027 INFO L279 CegarLoopForPetriNet]: 33 programPoint places, 102 predicate places. [2024-11-24 01:22:25,028 INFO L471 AbstractCegarLoop]: Abstraction has has 135 places, 90 transitions, 794 flow [2024-11-24 01:22:25,028 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.363636363636363) internal successors, (92), 11 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:22:25,028 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 01:22:25,028 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:22:25,028 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-24 01:22:25,028 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-24 01:22:25,029 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:22:25,029 INFO L85 PathProgramCache]: Analyzing trace with hash 196903858, now seen corresponding path program 3 times [2024-11-24 01:22:25,029 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:22:25,029 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1460710832] [2024-11-24 01:22:25,029 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-24 01:22:25,029 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:22:25,059 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2024-11-24 01:22:25,059 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-24 01:22:32,038 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-11-24 01:22:32,038 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:22:32,038 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1460710832] [2024-11-24 01:22:32,039 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1460710832] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:22:32,039 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:22:32,039 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-24 01:22:32,039 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [944442221] [2024-11-24 01:22:32,039 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:22:32,039 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-24 01:22:32,039 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:22:32,040 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-24 01:22:32,040 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2024-11-24 01:22:32,079 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 31 [2024-11-24 01:22:32,080 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 135 places, 90 transitions, 794 flow. Second operand has 11 states, 11 states have (on average 8.363636363636363) internal successors, (92), 11 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:22:32,080 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 01:22:32,080 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 31 [2024-11-24 01:22:32,080 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 01:22:34,112 INFO L124 PetriNetUnfolderBase]: 89/289 cut-off events. [2024-11-24 01:22:34,112 INFO L125 PetriNetUnfolderBase]: For 846/851 co-relation queries the response was YES. [2024-11-24 01:22:34,113 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1142 conditions, 289 events. 89/289 cut-off events. For 846/851 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 1227 event pairs, 30 based on Foata normal form. 5/294 useless extension candidates. Maximal degree in co-relation 1069. Up to 129 conditions per place. [2024-11-24 01:22:34,115 INFO L140 encePairwiseOnDemand]: 18/31 looper letters, 71 selfloop transitions, 44 changer transitions 0/117 dead transitions. [2024-11-24 01:22:34,115 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 148 places, 117 transitions, 1148 flow [2024-11-24 01:22:34,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-24 01:22:34,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2024-11-24 01:22:34,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 189 transitions. [2024-11-24 01:22:34,117 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.3586337760910816 [2024-11-24 01:22:34,117 INFO L175 Difference]: Start difference. First operand has 135 places, 90 transitions, 794 flow. Second operand 17 states and 189 transitions. [2024-11-24 01:22:34,117 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 148 places, 117 transitions, 1148 flow [2024-11-24 01:22:34,125 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 141 places, 117 transitions, 1104 flow, removed 7 selfloop flow, removed 7 redundant places. [2024-11-24 01:22:34,127 INFO L231 Difference]: Finished difference. Result has 145 places, 98 transitions, 925 flow [2024-11-24 01:22:34,127 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=31, PETRI_DIFFERENCE_MINUEND_FLOW=754, PETRI_DIFFERENCE_MINUEND_PLACES=125, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=90, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=37, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=50, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=925, PETRI_PLACES=145, PETRI_TRANSITIONS=98} [2024-11-24 01:22:34,128 INFO L279 CegarLoopForPetriNet]: 33 programPoint places, 112 predicate places. [2024-11-24 01:22:34,128 INFO L471 AbstractCegarLoop]: Abstraction has has 145 places, 98 transitions, 925 flow [2024-11-24 01:22:34,128 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.363636363636363) internal successors, (92), 11 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:22:34,128 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 01:22:34,129 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:22:34,129 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-24 01:22:34,129 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-24 01:22:34,130 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:22:34,130 INFO L85 PathProgramCache]: Analyzing trace with hash -365176940, now seen corresponding path program 4 times [2024-11-24 01:22:34,130 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:22:34,130 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [318353453] [2024-11-24 01:22:34,130 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-24 01:22:34,130 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:22:34,198 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-24 01:22:34,198 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-24 01:22:40,628 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-11-24 01:22:40,628 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:22:40,628 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [318353453] [2024-11-24 01:22:40,628 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [318353453] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:22:40,628 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:22:40,629 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-24 01:22:40,629 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1355701273] [2024-11-24 01:22:40,629 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:22:40,629 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-24 01:22:40,629 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:22:40,629 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-24 01:22:40,630 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2024-11-24 01:22:40,651 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 31 [2024-11-24 01:22:40,652 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 145 places, 98 transitions, 925 flow. Second operand has 10 states, 10 states have (on average 8.5) internal successors, (85), 10 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:22:40,652 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 01:22:40,652 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 31 [2024-11-24 01:22:40,652 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 01:22:42,416 INFO L124 PetriNetUnfolderBase]: 90/299 cut-off events. [2024-11-24 01:22:42,416 INFO L125 PetriNetUnfolderBase]: For 1029/1033 co-relation queries the response was YES. [2024-11-24 01:22:42,418 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1267 conditions, 299 events. 90/299 cut-off events. For 1029/1033 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 1322 event pairs, 40 based on Foata normal form. 7/306 useless extension candidates. Maximal degree in co-relation 1153. Up to 142 conditions per place. [2024-11-24 01:22:42,419 INFO L140 encePairwiseOnDemand]: 20/31 looper letters, 79 selfloop transitions, 39 changer transitions 0/120 dead transitions. [2024-11-24 01:22:42,420 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 158 places, 120 transitions, 1281 flow [2024-11-24 01:22:42,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-24 01:22:42,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2024-11-24 01:22:42,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 163 transitions. [2024-11-24 01:22:42,421 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.37557603686635943 [2024-11-24 01:22:42,421 INFO L175 Difference]: Start difference. First operand has 145 places, 98 transitions, 925 flow. Second operand 14 states and 163 transitions. [2024-11-24 01:22:42,421 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 158 places, 120 transitions, 1281 flow [2024-11-24 01:22:42,430 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 148 places, 120 transitions, 1203 flow, removed 8 selfloop flow, removed 10 redundant places. [2024-11-24 01:22:42,432 INFO L231 Difference]: Finished difference. Result has 153 places, 104 transitions, 1028 flow [2024-11-24 01:22:42,433 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=31, PETRI_DIFFERENCE_MINUEND_FLOW=854, PETRI_DIFFERENCE_MINUEND_PLACES=135, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=98, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=33, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=61, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=1028, PETRI_PLACES=153, PETRI_TRANSITIONS=104} [2024-11-24 01:22:42,433 INFO L279 CegarLoopForPetriNet]: 33 programPoint places, 120 predicate places. [2024-11-24 01:22:42,433 INFO L471 AbstractCegarLoop]: Abstraction has has 153 places, 104 transitions, 1028 flow [2024-11-24 01:22:42,433 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 8.5) internal successors, (85), 10 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:22:42,434 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 01:22:42,434 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:22:42,434 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-24 01:22:42,434 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-24 01:22:42,436 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:22:42,436 INFO L85 PathProgramCache]: Analyzing trace with hash 509772621, now seen corresponding path program 4 times [2024-11-24 01:22:42,436 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:22:42,436 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1607665783] [2024-11-24 01:22:42,436 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-24 01:22:42,436 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:22:42,529 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-24 01:22:42,529 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-24 01:22:44,302 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-11-24 01:22:44,302 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:22:44,302 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1607665783] [2024-11-24 01:22:44,302 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1607665783] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:22:44,302 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:22:44,302 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-24 01:22:44,302 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [537303368] [2024-11-24 01:22:44,302 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:22:44,302 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-24 01:22:44,303 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:22:44,303 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-24 01:22:44,303 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2024-11-24 01:22:44,316 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 31 [2024-11-24 01:22:44,316 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 153 places, 104 transitions, 1028 flow. Second operand has 10 states, 10 states have (on average 8.5) internal successors, (85), 10 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:22:44,317 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 01:22:44,317 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 31 [2024-11-24 01:22:44,317 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 01:22:45,232 INFO L124 PetriNetUnfolderBase]: 92/309 cut-off events. [2024-11-24 01:22:45,232 INFO L125 PetriNetUnfolderBase]: For 1172/1176 co-relation queries the response was YES. [2024-11-24 01:22:45,234 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1342 conditions, 309 events. 92/309 cut-off events. For 1172/1176 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 1403 event pairs, 28 based on Foata normal form. 7/316 useless extension candidates. Maximal degree in co-relation 1216. Up to 119 conditions per place. [2024-11-24 01:22:45,235 INFO L140 encePairwiseOnDemand]: 20/31 looper letters, 90 selfloop transitions, 42 changer transitions 1/135 dead transitions. [2024-11-24 01:22:45,235 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 169 places, 135 transitions, 1436 flow [2024-11-24 01:22:45,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-24 01:22:45,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2024-11-24 01:22:45,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 189 transitions. [2024-11-24 01:22:45,237 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.3586337760910816 [2024-11-24 01:22:45,237 INFO L175 Difference]: Start difference. First operand has 153 places, 104 transitions, 1028 flow. Second operand 17 states and 189 transitions. [2024-11-24 01:22:45,237 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 169 places, 135 transitions, 1436 flow [2024-11-24 01:22:45,248 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 166 places, 135 transitions, 1408 flow, removed 5 selfloop flow, removed 3 redundant places. [2024-11-24 01:22:45,251 INFO L231 Difference]: Finished difference. Result has 171 places, 114 transitions, 1166 flow [2024-11-24 01:22:45,251 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=31, PETRI_DIFFERENCE_MINUEND_FLOW=1001, PETRI_DIFFERENCE_MINUEND_PLACES=150, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=104, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=33, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=68, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=1166, PETRI_PLACES=171, PETRI_TRANSITIONS=114} [2024-11-24 01:22:45,252 INFO L279 CegarLoopForPetriNet]: 33 programPoint places, 138 predicate places. [2024-11-24 01:22:45,252 INFO L471 AbstractCegarLoop]: Abstraction has has 171 places, 114 transitions, 1166 flow [2024-11-24 01:22:45,252 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 8.5) internal successors, (85), 10 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:22:45,252 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 01:22:45,252 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:22:45,252 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-24 01:22:45,253 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-24 01:22:45,254 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:22:45,254 INFO L85 PathProgramCache]: Analyzing trace with hash -1489507340, now seen corresponding path program 1 times [2024-11-24 01:22:45,254 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:22:45,254 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1815387962] [2024-11-24 01:22:45,255 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:22:45,255 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:22:45,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:22:48,969 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-11-24 01:22:48,969 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:22:48,969 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1815387962] [2024-11-24 01:22:48,969 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1815387962] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:22:48,969 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:22:48,969 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-24 01:22:48,969 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2092307631] [2024-11-24 01:22:48,969 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:22:48,970 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-24 01:22:48,970 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:22:48,970 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-24 01:22:48,970 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-24 01:22:49,043 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 31 [2024-11-24 01:22:49,044 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 171 places, 114 transitions, 1166 flow. Second operand has 8 states, 8 states have (on average 10.75) internal successors, (86), 8 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:22:49,044 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 01:22:49,044 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 31 [2024-11-24 01:22:49,044 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 01:22:51,403 INFO L124 PetriNetUnfolderBase]: 80/312 cut-off events. [2024-11-24 01:22:51,403 INFO L125 PetriNetUnfolderBase]: For 1574/1578 co-relation queries the response was YES. [2024-11-24 01:22:51,405 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1428 conditions, 312 events. 80/312 cut-off events. For 1574/1578 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 1565 event pairs, 31 based on Foata normal form. 7/318 useless extension candidates. Maximal degree in co-relation 1322. Up to 144 conditions per place. [2024-11-24 01:22:51,407 INFO L140 encePairwiseOnDemand]: 23/31 looper letters, 69 selfloop transitions, 19 changer transitions 25/132 dead transitions. [2024-11-24 01:22:51,407 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 180 places, 132 transitions, 1503 flow [2024-11-24 01:22:51,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-24 01:22:51,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-24 01:22:51,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 138 transitions. [2024-11-24 01:22:51,408 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.44516129032258067 [2024-11-24 01:22:51,408 INFO L175 Difference]: Start difference. First operand has 171 places, 114 transitions, 1166 flow. Second operand 10 states and 138 transitions. [2024-11-24 01:22:51,408 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 180 places, 132 transitions, 1503 flow [2024-11-24 01:22:51,420 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 170 places, 132 transitions, 1413 flow, removed 6 selfloop flow, removed 10 redundant places. [2024-11-24 01:22:51,423 INFO L231 Difference]: Finished difference. Result has 172 places, 102 transitions, 984 flow [2024-11-24 01:22:51,423 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=31, PETRI_DIFFERENCE_MINUEND_FLOW=1084, PETRI_DIFFERENCE_MINUEND_PLACES=161, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=114, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=19, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=95, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=984, PETRI_PLACES=172, PETRI_TRANSITIONS=102} [2024-11-24 01:22:51,423 INFO L279 CegarLoopForPetriNet]: 33 programPoint places, 139 predicate places. [2024-11-24 01:22:51,423 INFO L471 AbstractCegarLoop]: Abstraction has has 172 places, 102 transitions, 984 flow [2024-11-24 01:22:51,424 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.75) internal successors, (86), 8 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:22:51,424 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 01:22:51,424 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:22:51,424 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-24 01:22:51,424 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-24 01:22:51,425 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:22:51,425 INFO L85 PathProgramCache]: Analyzing trace with hash 40716140, now seen corresponding path program 1 times [2024-11-24 01:22:51,425 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:22:51,425 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1386526046] [2024-11-24 01:22:51,425 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:22:51,425 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:22:51,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:22:55,570 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-11-24 01:22:55,570 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:22:55,570 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1386526046] [2024-11-24 01:22:55,570 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1386526046] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:22:55,570 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:22:55,570 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-24 01:22:55,571 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1523039387] [2024-11-24 01:22:55,571 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:22:55,571 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-24 01:22:55,571 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:22:55,571 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-24 01:22:55,571 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2024-11-24 01:22:55,653 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 31 [2024-11-24 01:22:55,653 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 172 places, 102 transitions, 984 flow. Second operand has 10 states, 10 states have (on average 10.4) internal successors, (104), 10 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:22:55,653 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 01:22:55,653 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 31 [2024-11-24 01:22:55,653 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 01:22:57,188 INFO L124 PetriNetUnfolderBase]: 62/264 cut-off events. [2024-11-24 01:22:57,188 INFO L125 PetriNetUnfolderBase]: For 1222/1226 co-relation queries the response was YES. [2024-11-24 01:22:57,193 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1173 conditions, 264 events. 62/264 cut-off events. For 1222/1226 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 1245 event pairs, 32 based on Foata normal form. 7/270 useless extension candidates. Maximal degree in co-relation 1122. Up to 146 conditions per place. [2024-11-24 01:22:57,194 INFO L140 encePairwiseOnDemand]: 21/31 looper letters, 61 selfloop transitions, 22 changer transitions 13/114 dead transitions. [2024-11-24 01:22:57,195 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 177 places, 114 transitions, 1211 flow [2024-11-24 01:22:57,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-24 01:22:57,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2024-11-24 01:22:57,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 166 transitions. [2024-11-24 01:22:57,203 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4119106699751861 [2024-11-24 01:22:57,204 INFO L175 Difference]: Start difference. First operand has 172 places, 102 transitions, 984 flow. Second operand 13 states and 166 transitions. [2024-11-24 01:22:57,204 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 177 places, 114 transitions, 1211 flow [2024-11-24 01:22:57,213 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 166 places, 114 transitions, 1142 flow, removed 6 selfloop flow, removed 11 redundant places. [2024-11-24 01:22:57,215 INFO L231 Difference]: Finished difference. Result has 168 places, 96 transitions, 901 flow [2024-11-24 01:22:57,215 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=31, PETRI_DIFFERENCE_MINUEND_FLOW=915, PETRI_DIFFERENCE_MINUEND_PLACES=154, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=102, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=80, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=901, PETRI_PLACES=168, PETRI_TRANSITIONS=96} [2024-11-24 01:22:57,216 INFO L279 CegarLoopForPetriNet]: 33 programPoint places, 135 predicate places. [2024-11-24 01:22:57,216 INFO L471 AbstractCegarLoop]: Abstraction has has 168 places, 96 transitions, 901 flow [2024-11-24 01:22:57,216 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.4) internal successors, (104), 10 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:22:57,216 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 01:22:57,216 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:22:57,216 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-24 01:22:57,216 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-24 01:22:57,217 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:22:57,217 INFO L85 PathProgramCache]: Analyzing trace with hash 1810207800, now seen corresponding path program 1 times [2024-11-24 01:22:57,217 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:22:57,217 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1294807706] [2024-11-24 01:22:57,217 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:22:57,217 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:22:57,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:23:01,306 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-11-24 01:23:01,306 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:23:01,306 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1294807706] [2024-11-24 01:23:01,307 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1294807706] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:23:01,307 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:23:01,307 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-24 01:23:01,307 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1031010883] [2024-11-24 01:23:01,307 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:23:01,307 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-24 01:23:01,307 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:23:01,308 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-24 01:23:01,308 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-11-24 01:23:01,375 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 31 [2024-11-24 01:23:01,376 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 168 places, 96 transitions, 901 flow. Second operand has 9 states, 9 states have (on average 8.777777777777779) internal successors, (79), 9 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:23:01,376 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 01:23:01,376 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 31 [2024-11-24 01:23:01,376 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 01:23:02,234 INFO L124 PetriNetUnfolderBase]: 70/256 cut-off events. [2024-11-24 01:23:02,234 INFO L125 PetriNetUnfolderBase]: For 826/826 co-relation queries the response was YES. [2024-11-24 01:23:02,235 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1144 conditions, 256 events. 70/256 cut-off events. For 826/826 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 1099 event pairs, 4 based on Foata normal form. 2/258 useless extension candidates. Maximal degree in co-relation 1095. Up to 69 conditions per place. [2024-11-24 01:23:02,236 INFO L140 encePairwiseOnDemand]: 22/31 looper letters, 87 selfloop transitions, 25 changer transitions 0/114 dead transitions. [2024-11-24 01:23:02,237 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 173 places, 114 transitions, 1211 flow [2024-11-24 01:23:02,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-24 01:23:02,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2024-11-24 01:23:02,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 128 transitions. [2024-11-24 01:23:02,238 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.375366568914956 [2024-11-24 01:23:02,238 INFO L175 Difference]: Start difference. First operand has 168 places, 96 transitions, 901 flow. Second operand 11 states and 128 transitions. [2024-11-24 01:23:02,238 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 173 places, 114 transitions, 1211 flow [2024-11-24 01:23:02,245 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 155 places, 114 transitions, 1145 flow, removed 3 selfloop flow, removed 18 redundant places. [2024-11-24 01:23:02,247 INFO L231 Difference]: Finished difference. Result has 155 places, 95 transitions, 873 flow [2024-11-24 01:23:02,247 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=31, PETRI_DIFFERENCE_MINUEND_FLOW=823, PETRI_DIFFERENCE_MINUEND_PLACES=145, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=95, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=25, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=70, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=873, PETRI_PLACES=155, PETRI_TRANSITIONS=95} [2024-11-24 01:23:02,248 INFO L279 CegarLoopForPetriNet]: 33 programPoint places, 122 predicate places. [2024-11-24 01:23:02,248 INFO L471 AbstractCegarLoop]: Abstraction has has 155 places, 95 transitions, 873 flow [2024-11-24 01:23:02,248 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.777777777777779) internal successors, (79), 9 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:23:02,248 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 01:23:02,248 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:23:02,248 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-24 01:23:02,248 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-24 01:23:02,249 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:23:02,249 INFO L85 PathProgramCache]: Analyzing trace with hash 1809052660, now seen corresponding path program 2 times [2024-11-24 01:23:02,249 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:23:02,249 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [956452334] [2024-11-24 01:23:02,249 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-24 01:23:02,249 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:23:02,277 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-24 01:23:02,277 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-24 01:23:07,054 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-11-24 01:23:07,055 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:23:07,055 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [956452334] [2024-11-24 01:23:07,055 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [956452334] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:23:07,055 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:23:07,055 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-24 01:23:07,055 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1002736810] [2024-11-24 01:23:07,055 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:23:07,055 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-24 01:23:07,056 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:23:07,056 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-24 01:23:07,056 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2024-11-24 01:23:07,132 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 31 [2024-11-24 01:23:07,133 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 155 places, 95 transitions, 873 flow. Second operand has 11 states, 11 states have (on average 10.272727272727273) internal successors, (113), 11 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:23:07,133 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 01:23:07,133 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 31 [2024-11-24 01:23:07,133 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 01:23:08,951 INFO L124 PetriNetUnfolderBase]: 54/233 cut-off events. [2024-11-24 01:23:08,951 INFO L125 PetriNetUnfolderBase]: For 763/763 co-relation queries the response was YES. [2024-11-24 01:23:08,952 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1029 conditions, 233 events. 54/233 cut-off events. For 763/763 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 1027 event pairs, 17 based on Foata normal form. 3/233 useless extension candidates. Maximal degree in co-relation 987. Up to 118 conditions per place. [2024-11-24 01:23:08,954 INFO L140 encePairwiseOnDemand]: 20/31 looper letters, 59 selfloop transitions, 26 changer transitions 7/109 dead transitions. [2024-11-24 01:23:08,954 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 168 places, 109 transitions, 1104 flow [2024-11-24 01:23:08,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-24 01:23:08,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2024-11-24 01:23:08,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 174 transitions. [2024-11-24 01:23:08,956 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4009216589861751 [2024-11-24 01:23:08,957 INFO L175 Difference]: Start difference. First operand has 155 places, 95 transitions, 873 flow. Second operand 14 states and 174 transitions. [2024-11-24 01:23:08,957 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 168 places, 109 transitions, 1104 flow [2024-11-24 01:23:08,962 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 159 places, 109 transitions, 1060 flow, removed 1 selfloop flow, removed 9 redundant places. [2024-11-24 01:23:08,964 INFO L231 Difference]: Finished difference. Result has 160 places, 91 transitions, 851 flow [2024-11-24 01:23:08,965 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=31, PETRI_DIFFERENCE_MINUEND_FLOW=829, PETRI_DIFFERENCE_MINUEND_PLACES=146, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=95, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=26, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=69, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=851, PETRI_PLACES=160, PETRI_TRANSITIONS=91} [2024-11-24 01:23:08,965 INFO L279 CegarLoopForPetriNet]: 33 programPoint places, 127 predicate places. [2024-11-24 01:23:08,965 INFO L471 AbstractCegarLoop]: Abstraction has has 160 places, 91 transitions, 851 flow [2024-11-24 01:23:08,966 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 10.272727272727273) internal successors, (113), 11 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:23:08,966 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 01:23:08,966 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:23:08,966 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-24 01:23:08,966 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-24 01:23:08,967 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:23:08,967 INFO L85 PathProgramCache]: Analyzing trace with hash 1775090920, now seen corresponding path program 3 times [2024-11-24 01:23:08,967 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:23:08,967 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [730651586] [2024-11-24 01:23:08,967 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-24 01:23:08,967 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:23:08,994 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2024-11-24 01:23:08,994 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-24 01:23:14,575 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-11-24 01:23:14,575 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:23:14,575 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [730651586] [2024-11-24 01:23:14,575 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [730651586] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:23:14,575 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:23:14,575 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-24 01:23:14,575 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1529879750] [2024-11-24 01:23:14,575 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:23:14,576 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-24 01:23:14,576 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:23:14,576 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-24 01:23:14,576 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2024-11-24 01:23:14,704 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 31 [2024-11-24 01:23:14,704 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 160 places, 91 transitions, 851 flow. Second operand has 11 states, 11 states have (on average 10.272727272727273) internal successors, (113), 11 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:23:14,704 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 01:23:14,704 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 31 [2024-11-24 01:23:14,704 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 01:23:16,518 INFO L124 PetriNetUnfolderBase]: 48/215 cut-off events. [2024-11-24 01:23:16,518 INFO L125 PetriNetUnfolderBase]: For 804/804 co-relation queries the response was YES. [2024-11-24 01:23:16,519 INFO L83 FinitePrefix]: Finished finitePrefix Result has 972 conditions, 215 events. 48/215 cut-off events. For 804/804 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 868 event pairs, 17 based on Foata normal form. 6/221 useless extension candidates. Maximal degree in co-relation 930. Up to 102 conditions per place. [2024-11-24 01:23:16,520 INFO L140 encePairwiseOnDemand]: 21/31 looper letters, 54 selfloop transitions, 20 changer transitions 16/102 dead transitions. [2024-11-24 01:23:16,520 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 168 places, 102 transitions, 1058 flow [2024-11-24 01:23:16,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-24 01:23:16,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2024-11-24 01:23:16,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 161 transitions. [2024-11-24 01:23:16,521 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.39950372208436724 [2024-11-24 01:23:16,521 INFO L175 Difference]: Start difference. First operand has 160 places, 91 transitions, 851 flow. Second operand 13 states and 161 transitions. [2024-11-24 01:23:16,522 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 168 places, 102 transitions, 1058 flow [2024-11-24 01:23:16,527 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 153 places, 102 transitions, 978 flow, removed 2 selfloop flow, removed 15 redundant places. [2024-11-24 01:23:16,528 INFO L231 Difference]: Finished difference. Result has 154 places, 80 transitions, 697 flow [2024-11-24 01:23:16,528 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=31, PETRI_DIFFERENCE_MINUEND_FLOW=781, PETRI_DIFFERENCE_MINUEND_PLACES=141, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=91, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=71, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=697, PETRI_PLACES=154, PETRI_TRANSITIONS=80} [2024-11-24 01:23:16,529 INFO L279 CegarLoopForPetriNet]: 33 programPoint places, 121 predicate places. [2024-11-24 01:23:16,529 INFO L471 AbstractCegarLoop]: Abstraction has has 154 places, 80 transitions, 697 flow [2024-11-24 01:23:16,529 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 10.272727272727273) internal successors, (113), 11 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:23:16,529 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 01:23:16,529 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:23:16,529 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-24 01:23:16,529 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-24 01:23:16,530 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:23:16,530 INFO L85 PathProgramCache]: Analyzing trace with hash 1564417106, now seen corresponding path program 4 times [2024-11-24 01:23:16,530 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:23:16,530 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [947015742] [2024-11-24 01:23:16,530 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-24 01:23:16,530 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:23:16,584 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-24 01:23:16,584 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-24 01:23:20,797 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-11-24 01:23:20,797 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:23:20,797 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [947015742] [2024-11-24 01:23:20,797 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [947015742] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:23:20,797 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:23:20,797 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-24 01:23:20,797 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1249960419] [2024-11-24 01:23:20,797 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:23:20,798 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-24 01:23:20,798 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:23:20,798 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-24 01:23:20,798 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-24 01:23:20,818 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 31 [2024-11-24 01:23:20,819 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 154 places, 80 transitions, 697 flow. Second operand has 9 states, 9 states have (on average 12.555555555555555) internal successors, (113), 9 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:23:20,819 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 01:23:20,819 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 31 [2024-11-24 01:23:20,819 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 01:23:21,903 INFO L124 PetriNetUnfolderBase]: 34/177 cut-off events. [2024-11-24 01:23:21,903 INFO L125 PetriNetUnfolderBase]: For 602/602 co-relation queries the response was YES. [2024-11-24 01:23:21,904 INFO L83 FinitePrefix]: Finished finitePrefix Result has 756 conditions, 177 events. 34/177 cut-off events. For 602/602 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 636 event pairs, 14 based on Foata normal form. 3/180 useless extension candidates. Maximal degree in co-relation 716. Up to 72 conditions per place. [2024-11-24 01:23:21,904 INFO L140 encePairwiseOnDemand]: 22/31 looper letters, 49 selfloop transitions, 14 changer transitions 14/88 dead transitions. [2024-11-24 01:23:21,904 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 155 places, 88 transitions, 865 flow [2024-11-24 01:23:21,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-24 01:23:21,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2024-11-24 01:23:21,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 174 transitions. [2024-11-24 01:23:21,906 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.46774193548387094 [2024-11-24 01:23:21,906 INFO L175 Difference]: Start difference. First operand has 154 places, 80 transitions, 697 flow. Second operand 12 states and 174 transitions. [2024-11-24 01:23:21,906 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 155 places, 88 transitions, 865 flow [2024-11-24 01:23:21,910 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 138 places, 88 transitions, 771 flow, removed 3 selfloop flow, removed 17 redundant places. [2024-11-24 01:23:21,912 INFO L231 Difference]: Finished difference. Result has 139 places, 71 transitions, 561 flow [2024-11-24 01:23:21,912 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=31, PETRI_DIFFERENCE_MINUEND_FLOW=603, PETRI_DIFFERENCE_MINUEND_PLACES=127, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=80, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=66, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=561, PETRI_PLACES=139, PETRI_TRANSITIONS=71} [2024-11-24 01:23:21,912 INFO L279 CegarLoopForPetriNet]: 33 programPoint places, 106 predicate places. [2024-11-24 01:23:21,912 INFO L471 AbstractCegarLoop]: Abstraction has has 139 places, 71 transitions, 561 flow [2024-11-24 01:23:21,913 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.555555555555555) internal successors, (113), 9 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:23:21,913 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 01:23:21,913 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:23:21,913 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-24 01:23:21,913 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-24 01:23:21,914 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:23:21,914 INFO L85 PathProgramCache]: Analyzing trace with hash -1131597754, now seen corresponding path program 2 times [2024-11-24 01:23:21,914 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:23:21,914 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [76297750] [2024-11-24 01:23:21,914 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-24 01:23:21,914 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:23:21,948 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-24 01:23:21,948 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-24 01:23:26,822 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-11-24 01:23:26,822 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:23:26,822 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [76297750] [2024-11-24 01:23:26,822 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [76297750] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:23:26,822 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:23:26,822 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-24 01:23:26,822 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [99477638] [2024-11-24 01:23:26,822 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:23:26,823 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-24 01:23:26,823 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:23:26,823 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-24 01:23:26,823 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2024-11-24 01:23:27,007 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 31 [2024-11-24 01:23:27,008 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 139 places, 71 transitions, 561 flow. Second operand has 11 states, 11 states have (on average 10.272727272727273) internal successors, (113), 11 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:23:27,008 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 01:23:27,008 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 31 [2024-11-24 01:23:27,008 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 01:23:28,379 INFO L124 PetriNetUnfolderBase]: 40/183 cut-off events. [2024-11-24 01:23:28,379 INFO L125 PetriNetUnfolderBase]: For 418/418 co-relation queries the response was YES. [2024-11-24 01:23:28,380 INFO L83 FinitePrefix]: Finished finitePrefix Result has 702 conditions, 183 events. 40/183 cut-off events. For 418/418 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 648 event pairs, 17 based on Foata normal form. 3/186 useless extension candidates. Maximal degree in co-relation 666. Up to 81 conditions per place. [2024-11-24 01:23:28,380 INFO L140 encePairwiseOnDemand]: 21/31 looper letters, 51 selfloop transitions, 12 changer transitions 12/84 dead transitions. [2024-11-24 01:23:28,380 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 140 places, 84 transitions, 755 flow [2024-11-24 01:23:28,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-24 01:23:28,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2024-11-24 01:23:28,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 151 transitions. [2024-11-24 01:23:28,381 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.40591397849462363 [2024-11-24 01:23:28,381 INFO L175 Difference]: Start difference. First operand has 139 places, 71 transitions, 561 flow. Second operand 12 states and 151 transitions. [2024-11-24 01:23:28,381 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 140 places, 84 transitions, 755 flow [2024-11-24 01:23:28,385 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 125 places, 84 transitions, 699 flow, removed 4 selfloop flow, removed 15 redundant places. [2024-11-24 01:23:28,386 INFO L231 Difference]: Finished difference. Result has 127 places, 67 transitions, 502 flow [2024-11-24 01:23:28,386 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=31, PETRI_DIFFERENCE_MINUEND_FLOW=505, PETRI_DIFFERENCE_MINUEND_PLACES=114, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=71, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=59, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=502, PETRI_PLACES=127, PETRI_TRANSITIONS=67} [2024-11-24 01:23:28,386 INFO L279 CegarLoopForPetriNet]: 33 programPoint places, 94 predicate places. [2024-11-24 01:23:28,387 INFO L471 AbstractCegarLoop]: Abstraction has has 127 places, 67 transitions, 502 flow [2024-11-24 01:23:28,387 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 10.272727272727273) internal successors, (113), 11 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:23:28,387 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 01:23:28,387 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:23:28,387 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-24 01:23:28,387 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-24 01:23:28,388 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:23:28,388 INFO L85 PathProgramCache]: Analyzing trace with hash 1229460806, now seen corresponding path program 3 times [2024-11-24 01:23:28,388 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:23:28,388 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [151067341] [2024-11-24 01:23:28,388 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-24 01:23:28,388 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:23:28,420 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2024-11-24 01:23:28,420 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-24 01:23:30,808 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-11-24 01:23:30,808 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:23:30,808 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [151067341] [2024-11-24 01:23:30,808 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [151067341] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:23:30,808 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:23:30,808 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-24 01:23:30,809 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1739834049] [2024-11-24 01:23:30,809 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:23:30,809 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-24 01:23:30,809 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:23:30,809 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-24 01:23:30,809 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2024-11-24 01:23:30,892 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 31 [2024-11-24 01:23:30,893 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 127 places, 67 transitions, 502 flow. Second operand has 10 states, 10 states have (on average 10.4) internal successors, (104), 10 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:23:30,893 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 01:23:30,893 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 31 [2024-11-24 01:23:30,893 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 01:23:31,972 INFO L124 PetriNetUnfolderBase]: 33/166 cut-off events. [2024-11-24 01:23:31,972 INFO L125 PetriNetUnfolderBase]: For 388/388 co-relation queries the response was YES. [2024-11-24 01:23:31,973 INFO L83 FinitePrefix]: Finished finitePrefix Result has 617 conditions, 166 events. 33/166 cut-off events. For 388/388 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 554 event pairs, 17 based on Foata normal form. 3/169 useless extension candidates. Maximal degree in co-relation 584. Up to 71 conditions per place. [2024-11-24 01:23:31,974 INFO L140 encePairwiseOnDemand]: 20/31 looper letters, 50 selfloop transitions, 13 changer transitions 8/80 dead transitions. [2024-11-24 01:23:31,974 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 133 places, 80 transitions, 688 flow [2024-11-24 01:23:31,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-24 01:23:31,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2024-11-24 01:23:31,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 150 transitions. [2024-11-24 01:23:31,975 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4032258064516129 [2024-11-24 01:23:31,975 INFO L175 Difference]: Start difference. First operand has 127 places, 67 transitions, 502 flow. Second operand 12 states and 150 transitions. [2024-11-24 01:23:31,975 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 133 places, 80 transitions, 688 flow [2024-11-24 01:23:31,981 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 122 places, 80 transitions, 651 flow, removed 4 selfloop flow, removed 11 redundant places. [2024-11-24 01:23:31,983 INFO L231 Difference]: Finished difference. Result has 125 places, 67 transitions, 498 flow [2024-11-24 01:23:31,983 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=31, PETRI_DIFFERENCE_MINUEND_FLOW=467, PETRI_DIFFERENCE_MINUEND_PLACES=111, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=67, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=54, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=498, PETRI_PLACES=125, PETRI_TRANSITIONS=67} [2024-11-24 01:23:31,984 INFO L279 CegarLoopForPetriNet]: 33 programPoint places, 92 predicate places. [2024-11-24 01:23:31,984 INFO L471 AbstractCegarLoop]: Abstraction has has 125 places, 67 transitions, 498 flow [2024-11-24 01:23:31,984 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.4) internal successors, (104), 10 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:23:31,984 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 01:23:31,984 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:23:31,985 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-11-24 01:23:31,985 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-24 01:23:31,985 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:23:31,985 INFO L85 PathProgramCache]: Analyzing trace with hash -1376917556, now seen corresponding path program 4 times [2024-11-24 01:23:31,985 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:23:31,985 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1896787116] [2024-11-24 01:23:31,986 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-24 01:23:31,986 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:23:32,042 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-24 01:23:32,042 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-24 01:23:33,872 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-11-24 01:23:33,872 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:23:33,872 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1896787116] [2024-11-24 01:23:33,872 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1896787116] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:23:33,872 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:23:33,873 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-24 01:23:33,873 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1104809837] [2024-11-24 01:23:33,873 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:23:33,873 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-24 01:23:33,873 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:23:33,873 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-24 01:23:33,873 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-11-24 01:23:33,905 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 31 [2024-11-24 01:23:33,906 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 125 places, 67 transitions, 498 flow. Second operand has 9 states, 9 states have (on average 12.555555555555555) internal successors, (113), 9 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:23:33,906 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 01:23:33,906 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 31 [2024-11-24 01:23:33,906 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 01:23:34,638 INFO L124 PetriNetUnfolderBase]: 26/140 cut-off events. [2024-11-24 01:23:34,638 INFO L125 PetriNetUnfolderBase]: For 331/331 co-relation queries the response was YES. [2024-11-24 01:23:34,639 INFO L83 FinitePrefix]: Finished finitePrefix Result has 545 conditions, 140 events. 26/140 cut-off events. For 331/331 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 388 event pairs, 11 based on Foata normal form. 3/143 useless extension candidates. Maximal degree in co-relation 512. Up to 51 conditions per place. [2024-11-24 01:23:34,639 INFO L140 encePairwiseOnDemand]: 21/31 looper letters, 41 selfloop transitions, 15 changer transitions 10/75 dead transitions. [2024-11-24 01:23:34,639 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 136 places, 75 transitions, 644 flow [2024-11-24 01:23:34,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-24 01:23:34,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2024-11-24 01:23:34,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 198 transitions. [2024-11-24 01:23:34,643 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.45622119815668205 [2024-11-24 01:23:34,643 INFO L175 Difference]: Start difference. First operand has 125 places, 67 transitions, 498 flow. Second operand 14 states and 198 transitions. [2024-11-24 01:23:34,643 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 136 places, 75 transitions, 644 flow [2024-11-24 01:23:34,645 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 126 places, 75 transitions, 614 flow, removed 3 selfloop flow, removed 10 redundant places. [2024-11-24 01:23:34,646 INFO L231 Difference]: Finished difference. Result has 128 places, 61 transitions, 464 flow [2024-11-24 01:23:34,646 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=31, PETRI_DIFFERENCE_MINUEND_FLOW=468, PETRI_DIFFERENCE_MINUEND_PLACES=113, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=67, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=52, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=464, PETRI_PLACES=128, PETRI_TRANSITIONS=61} [2024-11-24 01:23:34,646 INFO L279 CegarLoopForPetriNet]: 33 programPoint places, 95 predicate places. [2024-11-24 01:23:34,646 INFO L471 AbstractCegarLoop]: Abstraction has has 128 places, 61 transitions, 464 flow [2024-11-24 01:23:34,646 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.555555555555555) internal successors, (113), 9 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:23:34,646 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 01:23:34,646 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:23:34,646 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-11-24 01:23:34,647 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-24 01:23:34,647 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:23:34,647 INFO L85 PathProgramCache]: Analyzing trace with hash -1635565004, now seen corresponding path program 1 times [2024-11-24 01:23:34,647 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:23:34,647 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1798033811] [2024-11-24 01:23:34,647 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:23:34,647 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:23:34,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:23:36,902 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-11-24 01:23:36,902 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:23:36,902 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1798033811] [2024-11-24 01:23:36,902 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1798033811] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:23:36,902 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:23:36,902 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-24 01:23:36,902 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [278801722] [2024-11-24 01:23:36,902 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:23:36,902 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-24 01:23:36,903 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:23:36,903 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-24 01:23:36,903 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-11-24 01:23:36,927 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 31 [2024-11-24 01:23:36,928 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 128 places, 61 transitions, 464 flow. Second operand has 9 states, 9 states have (on average 9.777777777777779) internal successors, (88), 9 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:23:36,928 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 01:23:36,928 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 31 [2024-11-24 01:23:36,928 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 01:23:38,116 INFO L124 PetriNetUnfolderBase]: 22/127 cut-off events. [2024-11-24 01:23:38,117 INFO L125 PetriNetUnfolderBase]: For 288/288 co-relation queries the response was YES. [2024-11-24 01:23:38,117 INFO L83 FinitePrefix]: Finished finitePrefix Result has 512 conditions, 127 events. 22/127 cut-off events. For 288/288 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 308 event pairs, 4 based on Foata normal form. 2/129 useless extension candidates. Maximal degree in co-relation 480. Up to 31 conditions per place. [2024-11-24 01:23:38,117 INFO L140 encePairwiseOnDemand]: 22/31 looper letters, 51 selfloop transitions, 21 changer transitions 0/77 dead transitions. [2024-11-24 01:23:38,117 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 135 places, 77 transitions, 678 flow [2024-11-24 01:23:38,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-24 01:23:38,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2024-11-24 01:23:38,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 153 transitions. [2024-11-24 01:23:38,118 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.37965260545905705 [2024-11-24 01:23:38,118 INFO L175 Difference]: Start difference. First operand has 128 places, 61 transitions, 464 flow. Second operand 13 states and 153 transitions. [2024-11-24 01:23:38,119 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 135 places, 77 transitions, 678 flow [2024-11-24 01:23:38,121 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 117 places, 77 transitions, 613 flow, removed 7 selfloop flow, removed 18 redundant places. [2024-11-24 01:23:38,123 INFO L231 Difference]: Finished difference. Result has 121 places, 68 transitions, 502 flow [2024-11-24 01:23:38,123 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=31, PETRI_DIFFERENCE_MINUEND_FLOW=408, PETRI_DIFFERENCE_MINUEND_PLACES=105, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=61, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=502, PETRI_PLACES=121, PETRI_TRANSITIONS=68} [2024-11-24 01:23:38,123 INFO L279 CegarLoopForPetriNet]: 33 programPoint places, 88 predicate places. [2024-11-24 01:23:38,124 INFO L471 AbstractCegarLoop]: Abstraction has has 121 places, 68 transitions, 502 flow [2024-11-24 01:23:38,124 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.777777777777779) internal successors, (88), 9 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:23:38,124 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 01:23:38,124 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:23:38,124 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-11-24 01:23:38,124 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-24 01:23:38,125 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:23:38,125 INFO L85 PathProgramCache]: Analyzing trace with hash 281867310, now seen corresponding path program 1 times [2024-11-24 01:23:38,125 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:23:38,125 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [707497745] [2024-11-24 01:23:38,125 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:23:38,125 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:23:38,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:23:41,317 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-11-24 01:23:41,317 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:23:41,317 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [707497745] [2024-11-24 01:23:41,317 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [707497745] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:23:41,317 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:23:41,318 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-24 01:23:41,318 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [783234723] [2024-11-24 01:23:41,318 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:23:41,318 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-24 01:23:41,318 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:23:41,318 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-24 01:23:41,318 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-24 01:23:41,385 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 31 [2024-11-24 01:23:41,385 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 121 places, 68 transitions, 502 flow. Second operand has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 9 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:23:41,385 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 01:23:41,385 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 31 [2024-11-24 01:23:41,385 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 01:23:42,171 INFO L124 PetriNetUnfolderBase]: 20/125 cut-off events. [2024-11-24 01:23:42,172 INFO L125 PetriNetUnfolderBase]: For 281/281 co-relation queries the response was YES. [2024-11-24 01:23:42,172 INFO L83 FinitePrefix]: Finished finitePrefix Result has 507 conditions, 125 events. 20/125 cut-off events. For 281/281 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 304 event pairs, 5 based on Foata normal form. 2/127 useless extension candidates. Maximal degree in co-relation 477. Up to 42 conditions per place. [2024-11-24 01:23:42,172 INFO L140 encePairwiseOnDemand]: 23/31 looper letters, 43 selfloop transitions, 8 changer transitions 15/72 dead transitions. [2024-11-24 01:23:42,172 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 129 places, 72 transitions, 636 flow [2024-11-24 01:23:42,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-24 01:23:42,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-24 01:23:42,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 123 transitions. [2024-11-24 01:23:42,174 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.3967741935483871 [2024-11-24 01:23:42,174 INFO L175 Difference]: Start difference. First operand has 121 places, 68 transitions, 502 flow. Second operand 10 states and 123 transitions. [2024-11-24 01:23:42,174 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 129 places, 72 transitions, 636 flow [2024-11-24 01:23:42,176 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 122 places, 72 transitions, 605 flow, removed 2 selfloop flow, removed 7 redundant places. [2024-11-24 01:23:42,178 INFO L231 Difference]: Finished difference. Result has 122 places, 57 transitions, 430 flow [2024-11-24 01:23:42,178 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=31, PETRI_DIFFERENCE_MINUEND_FLOW=467, PETRI_DIFFERENCE_MINUEND_PLACES=113, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=67, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=59, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=430, PETRI_PLACES=122, PETRI_TRANSITIONS=57} [2024-11-24 01:23:42,178 INFO L279 CegarLoopForPetriNet]: 33 programPoint places, 89 predicate places. [2024-11-24 01:23:42,178 INFO L471 AbstractCegarLoop]: Abstraction has has 122 places, 57 transitions, 430 flow [2024-11-24 01:23:42,179 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 9 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:23:42,179 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 01:23:42,179 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:23:42,179 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-11-24 01:23:42,179 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-24 01:23:42,180 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:23:42,180 INFO L85 PathProgramCache]: Analyzing trace with hash -1050519305, now seen corresponding path program 1 times [2024-11-24 01:23:42,180 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:23:42,180 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [369290445] [2024-11-24 01:23:42,180 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:23:42,180 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:23:42,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:23:50,400 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-11-24 01:23:50,400 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:23:50,400 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [369290445] [2024-11-24 01:23:50,401 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [369290445] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:23:50,401 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:23:50,401 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-24 01:23:50,401 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [667188786] [2024-11-24 01:23:50,401 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:23:50,401 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-24 01:23:50,401 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:23:50,401 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-24 01:23:50,401 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-11-24 01:23:50,484 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 31 [2024-11-24 01:23:50,485 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 122 places, 57 transitions, 430 flow. Second operand has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 9 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:23:50,485 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 01:23:50,485 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 31 [2024-11-24 01:23:50,485 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 01:23:51,511 INFO L124 PetriNetUnfolderBase]: 10/88 cut-off events. [2024-11-24 01:23:51,512 INFO L125 PetriNetUnfolderBase]: For 256/258 co-relation queries the response was YES. [2024-11-24 01:23:51,512 INFO L83 FinitePrefix]: Finished finitePrefix Result has 382 conditions, 88 events. 10/88 cut-off events. For 256/258 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 135 event pairs, 2 based on Foata normal form. 4/92 useless extension candidates. Maximal degree in co-relation 352. Up to 26 conditions per place. [2024-11-24 01:23:51,513 INFO L140 encePairwiseOnDemand]: 23/31 looper letters, 40 selfloop transitions, 4 changer transitions 15/63 dead transitions. [2024-11-24 01:23:51,513 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 112 places, 63 transitions, 574 flow [2024-11-24 01:23:51,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-24 01:23:51,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-24 01:23:51,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 110 transitions. [2024-11-24 01:23:51,514 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.3942652329749104 [2024-11-24 01:23:51,514 INFO L175 Difference]: Start difference. First operand has 122 places, 57 transitions, 430 flow. Second operand 9 states and 110 transitions. [2024-11-24 01:23:51,514 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 112 places, 63 transitions, 574 flow [2024-11-24 01:23:51,517 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 101 places, 63 transitions, 536 flow, removed 3 selfloop flow, removed 11 redundant places. [2024-11-24 01:23:51,518 INFO L231 Difference]: Finished difference. Result has 103 places, 48 transitions, 351 flow [2024-11-24 01:23:51,519 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=31, PETRI_DIFFERENCE_MINUEND_FLOW=392, PETRI_DIFFERENCE_MINUEND_PLACES=93, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=57, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=53, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=351, PETRI_PLACES=103, PETRI_TRANSITIONS=48} [2024-11-24 01:23:51,520 INFO L279 CegarLoopForPetriNet]: 33 programPoint places, 70 predicate places. [2024-11-24 01:23:51,520 INFO L471 AbstractCegarLoop]: Abstraction has has 103 places, 48 transitions, 351 flow [2024-11-24 01:23:51,520 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 9 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:23:51,520 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 01:23:51,523 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:23:51,523 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-11-24 01:23:51,523 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-24 01:23:51,524 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:23:51,524 INFO L85 PathProgramCache]: Analyzing trace with hash -1710393131, now seen corresponding path program 2 times [2024-11-24 01:23:51,524 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:23:51,524 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1198507775] [2024-11-24 01:23:51,525 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-24 01:23:51,525 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:23:51,587 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-24 01:23:51,587 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-24 01:23:53,337 INFO L134 CoverageAnalysis]: Checked inductivity of 146 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-11-24 01:23:53,337 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:23:53,338 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1198507775] [2024-11-24 01:23:53,338 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1198507775] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:23:53,338 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [492039448] [2024-11-24 01:23:53,338 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-24 01:23:53,338 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:23:53,338 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_175314c3-1f5b-47f4-a260-621eedeebd5c/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:23:53,340 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_175314c3-1f5b-47f4-a260-621eedeebd5c/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:23:53,342 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_175314c3-1f5b-47f4-a260-621eedeebd5c/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-24 01:23:53,550 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-24 01:23:53,550 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-24 01:23:53,552 INFO L256 TraceCheckSpWp]: Trace formula consists of 319 conjuncts, 76 conjuncts are in the unsatisfiable core [2024-11-24 01:23:53,555 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:23:56,055 INFO L349 Elim1Store]: treesize reduction 257, result has 30.7 percent of original size [2024-11-24 01:23:56,056 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 11 select indices, 11 select index equivalence classes, 45 disjoint index pairs (out of 55 index pairs), introduced 11 new quantified variables, introduced 65 case distinctions, treesize of input 107 treesize of output 155 [2024-11-24 01:24:00,017 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 01:24:00,018 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 11 select indices, 11 select index equivalence classes, 45 disjoint index pairs (out of 55 index pairs), introduced 11 new quantified variables, introduced 55 case distinctions, treesize of input 485 treesize of output 303 [2024-11-24 01:24:04,054 INFO L134 CoverageAnalysis]: Checked inductivity of 146 backedges. 0 proven. 145 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-24 01:24:04,054 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 01:24:24,021 INFO L134 CoverageAnalysis]: Checked inductivity of 146 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-11-24 01:24:24,022 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [492039448] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-24 01:24:24,022 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-24 01:24:24,022 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 25, 6] total 35 [2024-11-24 01:24:24,022 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [395333589] [2024-11-24 01:24:24,022 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-24 01:24:24,023 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 37 states [2024-11-24 01:24:24,023 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:24:24,023 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2024-11-24 01:24:24,024 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=242, Invalid=1090, Unknown=0, NotChecked=0, Total=1332 [2024-11-24 01:24:24,746 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 31 [2024-11-24 01:24:24,747 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 103 places, 48 transitions, 351 flow. Second operand has 37 states, 37 states have (on average 8.513513513513514) internal successors, (315), 37 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:24:24,747 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 01:24:24,747 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 31 [2024-11-24 01:24:24,747 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 01:24:28,219 INFO L124 PetriNetUnfolderBase]: 5/64 cut-off events. [2024-11-24 01:24:28,220 INFO L125 PetriNetUnfolderBase]: For 186/188 co-relation queries the response was YES. [2024-11-24 01:24:28,220 INFO L83 FinitePrefix]: Finished finitePrefix Result has 287 conditions, 64 events. 5/64 cut-off events. For 186/188 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 43 event pairs, 0 based on Foata normal form. 5/69 useless extension candidates. Maximal degree in co-relation 258. Up to 11 conditions per place. [2024-11-24 01:24:28,220 INFO L140 encePairwiseOnDemand]: 21/31 looper letters, 10 selfloop transitions, 25 changer transitions 10/48 dead transitions. [2024-11-24 01:24:28,220 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 118 places, 48 transitions, 438 flow [2024-11-24 01:24:28,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2024-11-24 01:24:28,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2024-11-24 01:24:28,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 246 transitions. [2024-11-24 01:24:28,222 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.27363737486095663 [2024-11-24 01:24:28,222 INFO L175 Difference]: Start difference. First operand has 103 places, 48 transitions, 351 flow. Second operand 29 states and 246 transitions. [2024-11-24 01:24:28,222 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 118 places, 48 transitions, 438 flow [2024-11-24 01:24:28,223 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 106 places, 48 transitions, 397 flow, removed 9 selfloop flow, removed 12 redundant places. [2024-11-24 01:24:28,224 INFO L231 Difference]: Finished difference. Result has 106 places, 38 transitions, 309 flow [2024-11-24 01:24:28,224 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=31, PETRI_DIFFERENCE_MINUEND_FLOW=303, PETRI_DIFFERENCE_MINUEND_PLACES=78, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=25, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=29, PETRI_FLOW=309, PETRI_PLACES=106, PETRI_TRANSITIONS=38} [2024-11-24 01:24:28,224 INFO L279 CegarLoopForPetriNet]: 33 programPoint places, 73 predicate places. [2024-11-24 01:24:28,224 INFO L471 AbstractCegarLoop]: Abstraction has has 106 places, 38 transitions, 309 flow [2024-11-24 01:24:28,225 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 37 states, 37 states have (on average 8.513513513513514) internal successors, (315), 37 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:24:28,225 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 01:24:28,225 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:24:28,232 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_175314c3-1f5b-47f4-a260-621eedeebd5c/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-24 01:24:28,425 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_175314c3-1f5b-47f4-a260-621eedeebd5c/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:24:28,425 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-24 01:24:28,426 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:24:28,426 INFO L85 PathProgramCache]: Analyzing trace with hash -995054799, now seen corresponding path program 1 times [2024-11-24 01:24:28,426 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:24:28,426 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [689049889] [2024-11-24 01:24:28,426 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:24:28,426 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:24:28,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:24:29,981 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-11-24 01:24:29,981 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:24:29,981 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [689049889] [2024-11-24 01:24:29,981 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [689049889] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:24:29,981 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1107450479] [2024-11-24 01:24:29,981 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:24:29,981 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:24:29,981 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_175314c3-1f5b-47f4-a260-621eedeebd5c/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:24:29,984 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_175314c3-1f5b-47f4-a260-621eedeebd5c/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:24:29,986 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_175314c3-1f5b-47f4-a260-621eedeebd5c/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-24 01:24:30,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:24:30,208 INFO L256 TraceCheckSpWp]: Trace formula consists of 322 conjuncts, 72 conjuncts are in the unsatisfiable core [2024-11-24 01:24:30,210 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:24:33,032 INFO L349 Elim1Store]: treesize reduction 180, result has 38.1 percent of original size [2024-11-24 01:24:33,032 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 45 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 10 case distinctions, treesize of input 90 treesize of output 141 [2024-11-24 01:24:37,503 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 01:24:37,504 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 11 select indices, 11 select index equivalence classes, 45 disjoint index pairs (out of 55 index pairs), introduced 11 new quantified variables, introduced 55 case distinctions, treesize of input 505 treesize of output 323 [2024-11-24 01:24:43,540 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 1 proven. 146 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-24 01:24:43,540 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 01:24:44,289 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 146 trivial. 0 not checked. [2024-11-24 01:24:44,289 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1107450479] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-24 01:24:44,289 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-24 01:24:44,289 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 23, 4] total 32 [2024-11-24 01:24:44,289 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1379835085] [2024-11-24 01:24:44,289 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-24 01:24:44,289 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2024-11-24 01:24:44,290 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:24:44,290 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2024-11-24 01:24:44,290 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=198, Invalid=924, Unknown=0, NotChecked=0, Total=1122 [2024-11-24 01:24:44,702 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 5 out of 31 [2024-11-24 01:24:44,702 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 106 places, 38 transitions, 309 flow. Second operand has 34 states, 34 states have (on average 6.9411764705882355) internal successors, (236), 34 states have internal predecessors, (236), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:24:44,702 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 01:24:44,702 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 5 of 31 [2024-11-24 01:24:44,702 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 01:24:47,173 INFO L124 PetriNetUnfolderBase]: 1/46 cut-off events. [2024-11-24 01:24:47,174 INFO L125 PetriNetUnfolderBase]: For 179/179 co-relation queries the response was YES. [2024-11-24 01:24:47,174 INFO L83 FinitePrefix]: Finished finitePrefix Result has 218 conditions, 46 events. 1/46 cut-off events. For 179/179 co-relation queries the response was YES. Maximal size of possible extension queue 1. Compared 1 event pairs, 0 based on Foata normal form. 1/47 useless extension candidates. Maximal degree in co-relation 194. Up to 11 conditions per place. [2024-11-24 01:24:47,174 INFO L140 encePairwiseOnDemand]: 22/31 looper letters, 0 selfloop transitions, 0 changer transitions 37/37 dead transitions. [2024-11-24 01:24:47,174 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 115 places, 37 transitions, 369 flow [2024-11-24 01:24:47,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2024-11-24 01:24:47,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2024-11-24 01:24:47,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 165 transitions. [2024-11-24 01:24:47,175 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.20471464019851116 [2024-11-24 01:24:47,175 INFO L175 Difference]: Start difference. First operand has 106 places, 38 transitions, 309 flow. Second operand 26 states and 165 transitions. [2024-11-24 01:24:47,175 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 115 places, 37 transitions, 369 flow [2024-11-24 01:24:47,176 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 79 places, 37 transitions, 280 flow, removed 10 selfloop flow, removed 36 redundant places. [2024-11-24 01:24:47,177 INFO L231 Difference]: Finished difference. Result has 79 places, 0 transitions, 0 flow [2024-11-24 01:24:47,179 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=31, PETRI_DIFFERENCE_MINUEND_FLOW=210, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=26, PETRI_FLOW=0, PETRI_PLACES=79, PETRI_TRANSITIONS=0} [2024-11-24 01:24:47,180 INFO L279 CegarLoopForPetriNet]: 33 programPoint places, 46 predicate places. [2024-11-24 01:24:47,180 INFO L471 AbstractCegarLoop]: Abstraction has has 79 places, 0 transitions, 0 flow [2024-11-24 01:24:47,181 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 6.9411764705882355) internal successors, (236), 34 states have internal predecessors, (236), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:24:47,183 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 13 remaining) [2024-11-24 01:24:47,183 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 13 remaining) [2024-11-24 01:24:47,185 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 13 remaining) [2024-11-24 01:24:47,185 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 13 remaining) [2024-11-24 01:24:47,185 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 13 remaining) [2024-11-24 01:24:47,185 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 13 remaining) [2024-11-24 01:24:47,185 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 13 remaining) [2024-11-24 01:24:47,185 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 13 remaining) [2024-11-24 01:24:47,185 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 13 remaining) [2024-11-24 01:24:47,185 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 13 remaining) [2024-11-24 01:24:47,186 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 13 remaining) [2024-11-24 01:24:47,186 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 13 remaining) [2024-11-24 01:24:47,186 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 13 remaining) [2024-11-24 01:24:47,196 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_175314c3-1f5b-47f4-a260-621eedeebd5c/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-11-24 01:24:47,386 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_175314c3-1f5b-47f4-a260-621eedeebd5c/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:24:47,387 INFO L422 BasicCegarLoop]: Path program histogram: [4, 4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:24:47,391 INFO L241 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-24 01:24:47,392 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-24 01:24:47,396 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.11 01:24:47 BasicIcfg [2024-11-24 01:24:47,396 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-24 01:24:47,397 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-24 01:24:47,397 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-24 01:24:47,397 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-24 01:24:47,398 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 01:21:42" (3/4) ... [2024-11-24 01:24:47,400 INFO L146 WitnessPrinter]: Generating witness for correct program [2024-11-24 01:24:47,403 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2024-11-24 01:24:47,407 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 87 nodes and edges [2024-11-24 01:24:47,408 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2024-11-24 01:24:47,408 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-24 01:24:47,489 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_175314c3-1f5b-47f4-a260-621eedeebd5c/bin/uautomizer-verify-LYvppIcaGC/witness.graphml [2024-11-24 01:24:47,490 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_175314c3-1f5b-47f4-a260-621eedeebd5c/bin/uautomizer-verify-LYvppIcaGC/witness.yml [2024-11-24 01:24:47,490 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-24 01:24:47,491 INFO L158 Benchmark]: Toolchain (without parser) took 187680.92ms. Allocated memory was 117.4MB in the beginning and 998.2MB in the end (delta: 880.8MB). Free memory was 91.1MB in the beginning and 581.3MB in the end (delta: -490.1MB). Peak memory consumption was 396.2MB. Max. memory is 16.1GB. [2024-11-24 01:24:47,492 INFO L158 Benchmark]: CDTParser took 1.73ms. Allocated memory is still 117.4MB. Free memory is still 74.2MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-24 01:24:47,492 INFO L158 Benchmark]: CACSL2BoogieTranslator took 751.06ms. Allocated memory is still 117.4MB. Free memory was 90.9MB in the beginning and 61.1MB in the end (delta: 29.9MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2024-11-24 01:24:47,492 INFO L158 Benchmark]: Boogie Procedure Inliner took 84.21ms. Allocated memory is still 117.4MB. Free memory was 61.1MB in the beginning and 58.6MB in the end (delta: 2.5MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-24 01:24:47,493 INFO L158 Benchmark]: Boogie Preprocessor took 93.94ms. Allocated memory is still 117.4MB. Free memory was 58.6MB in the beginning and 56.5MB in the end (delta: 2.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-24 01:24:47,493 INFO L158 Benchmark]: RCFGBuilder took 1257.88ms. Allocated memory is still 117.4MB. Free memory was 56.5MB in the beginning and 72.7MB in the end (delta: -16.3MB). Peak memory consumption was 36.2MB. Max. memory is 16.1GB. [2024-11-24 01:24:47,494 INFO L158 Benchmark]: TraceAbstraction took 185393.89ms. Allocated memory was 117.4MB in the beginning and 998.2MB in the end (delta: 880.8MB). Free memory was 71.9MB in the beginning and 585.1MB in the end (delta: -513.2MB). Peak memory consumption was 363.8MB. Max. memory is 16.1GB. [2024-11-24 01:24:47,495 INFO L158 Benchmark]: Witness Printer took 92.85ms. Allocated memory is still 998.2MB. Free memory was 585.1MB in the beginning and 581.3MB in the end (delta: 3.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-24 01:24:47,496 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.73ms. Allocated memory is still 117.4MB. Free memory is still 74.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 751.06ms. Allocated memory is still 117.4MB. Free memory was 90.9MB in the beginning and 61.1MB in the end (delta: 29.9MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 84.21ms. Allocated memory is still 117.4MB. Free memory was 61.1MB in the beginning and 58.6MB in the end (delta: 2.5MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 93.94ms. Allocated memory is still 117.4MB. Free memory was 58.6MB in the beginning and 56.5MB in the end (delta: 2.1MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 1257.88ms. Allocated memory is still 117.4MB. Free memory was 56.5MB in the beginning and 72.7MB in the end (delta: -16.3MB). Peak memory consumption was 36.2MB. Max. memory is 16.1GB. * TraceAbstraction took 185393.89ms. Allocated memory was 117.4MB in the beginning and 998.2MB in the end (delta: 880.8MB). Free memory was 71.9MB in the beginning and 585.1MB in the end (delta: -513.2MB). Peak memory consumption was 363.8MB. Max. memory is 16.1GB. * Witness Printer took 92.85ms. Allocated memory is still 998.2MB. Free memory was 585.1MB in the beginning and 581.3MB in the end (delta: 3.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 937]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 937]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 944]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 944]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 931]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 931]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 932]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 932]: 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 3 procedures, 46 locations, 13 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: 185.3s, OverallIterations: 31, TraceHistogramMax: 10, PathProgramHistogramMax: 4, EmptinessCheckTime: 0.0s, AutomataDifference: 40.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1708 SdHoareTripleChecker+Valid, 11.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1571 mSDsluCounter, 3532 SdHoareTripleChecker+Invalid, 10.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3431 mSDsCounter, 154 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 7293 IncrementalHoareTripleChecker+Invalid, 7447 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 154 mSolverCounterUnsat, 101 mSDtfsCounter, 7293 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 739 GetRequests, 215 SyntacticMatches, 32 SemanticMatches, 492 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3232 ImplicationChecksByTransitivity, 65.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1166occurred in iteration=17, InterpolantAutomatonStates: 385, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 1.6s SatisfiabilityAnalysisTime, 141.1s InterpolantComputationTime, 1261 NumberOfCodeBlocks, 991 NumberOfCodeBlocksAsserted, 43 NumberOfCheckSat, 1374 ConstructedInterpolants, 79 QuantifiedInterpolants, 108613 SizeOfPredicates, 53 NumberOfNonLiveVariables, 1468 ConjunctsInSsa, 181 ConjunctsInUnsatCore, 42 InterpolantComputations, 26 PerfectInterpolantSequences, 3452/3999 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, ConComCheckerStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 8 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-11-24 01:24:47,563 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_175314c3-1f5b-47f4-a260-621eedeebd5c/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE