./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/goblint-regression/28-race_reach_79-equ_racefree.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9a7b9e1-9fc1-49e5-8266-f3a0ef3821d1/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9a7b9e1-9fc1-49e5-8266-f3a0ef3821d1/bin/uautomizer-verify-84ZbGMXZE1/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9a7b9e1-9fc1-49e5-8266-f3a0ef3821d1/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9a7b9e1-9fc1-49e5-8266-f3a0ef3821d1/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/28-race_reach_79-equ_racefree.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9a7b9e1-9fc1-49e5-8266-f3a0ef3821d1/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9a7b9e1-9fc1-49e5-8266-f3a0ef3821d1/bin/uautomizer-verify-84ZbGMXZE1 --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 5ac72ff2379990464c5f55660be1e08b12557a61aceeef8401296ef66be035fc --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 10:13:48,116 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 10:13:48,167 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9a7b9e1-9fc1-49e5-8266-f3a0ef3821d1/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-12-02 10:13:48,171 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 10:13:48,171 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 10:13:48,190 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 10:13:48,191 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 10:13:48,191 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 10:13:48,192 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 10:13:48,192 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 10:13:48,192 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 10:13:48,192 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 10:13:48,192 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 10:13:48,192 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 10:13:48,192 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 10:13:48,192 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 10:13:48,193 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-02 10:13:48,193 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-02 10:13:48,193 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-02 10:13:48,193 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-02 10:13:48,193 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 10:13:48,193 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-02 10:13:48,193 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 10:13:48,193 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-02 10:13:48,193 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-12-02 10:13:48,193 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-12-02 10:13:48,193 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-02 10:13:48,193 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 10:13:48,193 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 10:13:48,193 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 10:13:48,194 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 10:13:48,194 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 10:13:48,194 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 10:13:48,194 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 10:13:48,194 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 10:13:48,194 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 10:13:48,194 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 10:13:48,194 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 10:13:48,194 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 10:13:48,194 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 10:13:48,194 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 10:13:48,194 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 10:13:48,194 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-02 10:13:48,194 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-02 10:13:48,195 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-12-02 10:13:48,195 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-02 10:13:48,195 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 10:13:48,195 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 10:13:48,195 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 10:13:48,195 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 10:13:48,195 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_b9a7b9e1-9fc1-49e5-8266-f3a0ef3821d1/bin/uautomizer-verify-84ZbGMXZE1 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 -> 5ac72ff2379990464c5f55660be1e08b12557a61aceeef8401296ef66be035fc [2024-12-02 10:13:48,390 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 10:13:48,397 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 10:13:48,399 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 10:13:48,400 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 10:13:48,400 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 10:13:48,401 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9a7b9e1-9fc1-49e5-8266-f3a0ef3821d1/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/goblint-regression/28-race_reach_79-equ_racefree.i [2024-12-02 10:13:50,997 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9a7b9e1-9fc1-49e5-8266-f3a0ef3821d1/bin/uautomizer-verify-84ZbGMXZE1/data/6346fabe8/b1a0fdd58f7741dcb8c129936783a185/FLAG2d3c75192 [2024-12-02 10:13:51,236 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 10:13:51,236 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9a7b9e1-9fc1-49e5-8266-f3a0ef3821d1/sv-benchmarks/c/goblint-regression/28-race_reach_79-equ_racefree.i [2024-12-02 10:13:51,248 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9a7b9e1-9fc1-49e5-8266-f3a0ef3821d1/bin/uautomizer-verify-84ZbGMXZE1/data/6346fabe8/b1a0fdd58f7741dcb8c129936783a185/FLAG2d3c75192 [2024-12-02 10:13:51,563 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9a7b9e1-9fc1-49e5-8266-f3a0ef3821d1/bin/uautomizer-verify-84ZbGMXZE1/data/6346fabe8/b1a0fdd58f7741dcb8c129936783a185 [2024-12-02 10:13:51,565 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 10:13:51,566 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 10:13:51,567 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 10:13:51,567 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 10:13:51,570 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 10:13:51,570 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 10:13:51" (1/1) ... [2024-12-02 10:13:51,571 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4b7ebbba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:13:51, skipping insertion in model container [2024-12-02 10:13:51,571 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 10:13:51" (1/1) ... [2024-12-02 10:13:51,601 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 10:13:51,955 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 10:13:51,969 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 10:13:52,020 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 10:13:52,075 INFO L204 MainTranslator]: Completed translation [2024-12-02 10:13:52,075 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:13:52 WrapperNode [2024-12-02 10:13:52,076 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 10:13:52,076 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 10:13:52,076 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 10:13:52,076 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 10:13:52,081 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:13:52" (1/1) ... [2024-12-02 10:13:52,093 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:13:52" (1/1) ... [2024-12-02 10:13:52,110 INFO L138 Inliner]: procedures = 272, calls = 65, calls flagged for inlining = 5, calls inlined = 6, statements flattened = 234 [2024-12-02 10:13:52,111 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 10:13:52,111 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 10:13:52,111 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 10:13:52,111 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 10:13:52,117 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:13:52" (1/1) ... [2024-12-02 10:13:52,117 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:13:52" (1/1) ... [2024-12-02 10:13:52,120 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:13:52" (1/1) ... [2024-12-02 10:13:52,132 INFO L175 MemorySlicer]: Split 35 memory accesses to 4 slices as follows [2, 5, 2, 26]. 74 percent of accesses are in the largest equivalence class. The 23 initializations are split as follows [2, 5, 0, 16]. The 5 writes are split as follows [0, 0, 1, 4]. [2024-12-02 10:13:52,132 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:13:52" (1/1) ... [2024-12-02 10:13:52,133 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:13:52" (1/1) ... [2024-12-02 10:13:52,140 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:13:52" (1/1) ... [2024-12-02 10:13:52,141 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:13:52" (1/1) ... [2024-12-02 10:13:52,144 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:13:52" (1/1) ... [2024-12-02 10:13:52,145 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:13:52" (1/1) ... [2024-12-02 10:13:52,147 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:13:52" (1/1) ... [2024-12-02 10:13:52,148 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 10:13:52,149 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 10:13:52,149 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 10:13:52,149 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 10:13:52,150 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:13:52" (1/1) ... [2024-12-02 10:13:52,153 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 10:13:52,164 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9a7b9e1-9fc1-49e5-8266-f3a0ef3821d1/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 10:13:52,174 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9a7b9e1-9fc1-49e5-8266-f3a0ef3821d1/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-02 10:13:52,177 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9a7b9e1-9fc1-49e5-8266-f3a0ef3821d1/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-02 10:13:52,201 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-12-02 10:13:52,201 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-12-02 10:13:52,201 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-12-02 10:13:52,201 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-12-02 10:13:52,201 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-12-02 10:13:52,201 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-12-02 10:13:52,201 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-12-02 10:13:52,202 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-12-02 10:13:52,202 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-12-02 10:13:52,202 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-12-02 10:13:52,202 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-12-02 10:13:52,202 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-12-02 10:13:52,202 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 10:13:52,202 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-12-02 10:13:52,202 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-12-02 10:13:52,202 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-12-02 10:13:52,202 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-12-02 10:13:52,202 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-12-02 10:13:52,202 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-12-02 10:13:52,202 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 10:13:52,202 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 10:13:52,204 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-12-02 10:13:52,321 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 10:13:52,322 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 10:13:52,643 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-12-02 10:13:52,643 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 10:13:52,843 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 10:13:52,843 INFO L312 CfgBuilder]: Removed 12 assume(true) statements. [2024-12-02 10:13:52,843 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 10:13:52 BoogieIcfgContainer [2024-12-02 10:13:52,843 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 10:13:52,845 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-02 10:13:52,845 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-02 10:13:52,850 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-02 10:13:52,850 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 10:13:51" (1/3) ... [2024-12-02 10:13:52,851 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a89c16c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 10:13:52, skipping insertion in model container [2024-12-02 10:13:52,851 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:13:52" (2/3) ... [2024-12-02 10:13:52,851 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a89c16c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 10:13:52, skipping insertion in model container [2024-12-02 10:13:52,851 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 10:13:52" (3/3) ... [2024-12-02 10:13:52,852 INFO L128 eAbstractionObserver]: Analyzing ICFG 28-race_reach_79-equ_racefree.i [2024-12-02 10:13:52,868 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-02 10:13:52,870 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG 28-race_reach_79-equ_racefree.i that has 2 procedures, 94 locations, 1 initial locations, 12 loop locations, and 16 error locations. [2024-12-02 10:13:52,870 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-12-02 10:13:52,921 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-12-02 10:13:52,958 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 97 places, 119 transitions, 245 flow [2024-12-02 10:13:53,018 INFO L124 PetriNetUnfolderBase]: 36/167 cut-off events. [2024-12-02 10:13:53,020 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-12-02 10:13:53,025 INFO L83 FinitePrefix]: Finished finitePrefix Result has 172 conditions, 167 events. 36/167 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 612 event pairs, 0 based on Foata normal form. 0/108 useless extension candidates. Maximal degree in co-relation 97. Up to 8 conditions per place. [2024-12-02 10:13:53,025 INFO L82 GeneralOperation]: Start removeDead. Operand has 97 places, 119 transitions, 245 flow [2024-12-02 10:13:53,030 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 97 places, 117 transitions, 241 flow [2024-12-02 10:13:53,039 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 10:13:53,051 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;@41dbbcc8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 10:13:53,051 INFO L334 AbstractCegarLoop]: Starting to check reachability of 21 error locations. [2024-12-02 10:13:53,056 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-12-02 10:13:53,056 INFO L124 PetriNetUnfolderBase]: 0/4 cut-off events. [2024-12-02 10:13:53,056 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-12-02 10:13:53,056 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 10:13:53,057 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2024-12-02 10:13:53,057 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2024-12-02 10:13:53,062 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:13:53,062 INFO L85 PathProgramCache]: Analyzing trace with hash 20266133, now seen corresponding path program 1 times [2024-12-02 10:13:53,069 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:13:53,070 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [303940578] [2024-12-02 10:13:53,070 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:13:53,070 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:13:53,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:13:53,314 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 10:13:53,314 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:13:53,314 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [303940578] [2024-12-02 10:13:53,315 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [303940578] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:13:53,315 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:13:53,315 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-12-02 10:13:53,316 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1028559029] [2024-12-02 10:13:53,317 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:13:53,323 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 10:13:53,328 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:13:53,349 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 10:13:53,349 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 10:13:53,359 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 46 out of 119 [2024-12-02 10:13:53,362 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 97 places, 117 transitions, 241 flow. Second operand has 4 states, 4 states have (on average 47.0) internal successors, (188), 4 states have internal predecessors, (188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:13:53,362 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 10:13:53,362 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 46 of 119 [2024-12-02 10:13:53,364 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 10:13:53,932 INFO L124 PetriNetUnfolderBase]: 869/2697 cut-off events. [2024-12-02 10:13:53,933 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-12-02 10:13:53,940 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4429 conditions, 2697 events. 869/2697 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 107. Compared 21711 event pairs, 748 based on Foata normal form. 534/2910 useless extension candidates. Maximal degree in co-relation 2148. Up to 888 conditions per place. [2024-12-02 10:13:53,951 INFO L140 encePairwiseOnDemand]: 93/119 looper letters, 88 selfloop transitions, 5 changer transitions 0/139 dead transitions. [2024-12-02 10:13:53,951 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 99 places, 139 transitions, 477 flow [2024-12-02 10:13:53,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 10:13:53,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-12-02 10:13:53,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 318 transitions. [2024-12-02 10:13:53,965 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6680672268907563 [2024-12-02 10:13:53,967 INFO L175 Difference]: Start difference. First operand has 97 places, 117 transitions, 241 flow. Second operand 4 states and 318 transitions. [2024-12-02 10:13:53,968 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 99 places, 139 transitions, 477 flow [2024-12-02 10:13:53,973 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 99 places, 139 transitions, 477 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-12-02 10:13:53,977 INFO L231 Difference]: Finished difference. Result has 100 places, 97 transitions, 218 flow [2024-12-02 10:13:53,979 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=119, PETRI_DIFFERENCE_MINUEND_FLOW=199, PETRI_DIFFERENCE_MINUEND_PLACES=96, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=96, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=91, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=218, PETRI_PLACES=100, PETRI_TRANSITIONS=97} [2024-12-02 10:13:53,982 INFO L279 CegarLoopForPetriNet]: 97 programPoint places, 3 predicate places. [2024-12-02 10:13:53,983 INFO L471 AbstractCegarLoop]: Abstraction has has 100 places, 97 transitions, 218 flow [2024-12-02 10:13:53,983 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 47.0) internal successors, (188), 4 states have internal predecessors, (188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:13:53,983 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 10:13:53,983 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2024-12-02 10:13:53,983 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-12-02 10:13:53,983 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2024-12-02 10:13:53,984 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:13:53,984 INFO L85 PathProgramCache]: Analyzing trace with hash 20266122, now seen corresponding path program 1 times [2024-12-02 10:13:53,984 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:13:53,984 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2063455294] [2024-12-02 10:13:53,984 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:13:53,984 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:13:54,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:13:54,056 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 10:13:54,057 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:13:54,057 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2063455294] [2024-12-02 10:13:54,057 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2063455294] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:13:54,057 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:13:54,057 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-12-02 10:13:54,057 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [956448616] [2024-12-02 10:13:54,057 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:13:54,058 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 10:13:54,059 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:13:54,059 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 10:13:54,059 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 10:13:54,065 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 46 out of 119 [2024-12-02 10:13:54,065 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 100 places, 97 transitions, 218 flow. Second operand has 3 states, 3 states have (on average 47.333333333333336) internal successors, (142), 3 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:13:54,065 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 10:13:54,066 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 46 of 119 [2024-12-02 10:13:54,066 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 10:13:54,378 INFO L124 PetriNetUnfolderBase]: 869/2703 cut-off events. [2024-12-02 10:13:54,378 INFO L125 PetriNetUnfolderBase]: For 14/14 co-relation queries the response was YES. [2024-12-02 10:13:54,381 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4500 conditions, 2703 events. 869/2703 cut-off events. For 14/14 co-relation queries the response was YES. Maximal size of possible extension queue 107. Compared 21784 event pairs, 765 based on Foata normal form. 1/2384 useless extension candidates. Maximal degree in co-relation 2248. Up to 1722 conditions per place. [2024-12-02 10:13:54,386 INFO L140 encePairwiseOnDemand]: 116/119 looper letters, 49 selfloop transitions, 2 changer transitions 0/96 dead transitions. [2024-12-02 10:13:54,386 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 101 places, 96 transitions, 318 flow [2024-12-02 10:13:54,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 10:13:54,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-12-02 10:13:54,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 189 transitions. [2024-12-02 10:13:54,388 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5294117647058824 [2024-12-02 10:13:54,388 INFO L175 Difference]: Start difference. First operand has 100 places, 97 transitions, 218 flow. Second operand 3 states and 189 transitions. [2024-12-02 10:13:54,388 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 101 places, 96 transitions, 318 flow [2024-12-02 10:13:54,390 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 99 places, 96 transitions, 313 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-12-02 10:13:54,391 INFO L231 Difference]: Finished difference. Result has 99 places, 96 transitions, 215 flow [2024-12-02 10:13:54,391 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=119, PETRI_DIFFERENCE_MINUEND_FLOW=211, PETRI_DIFFERENCE_MINUEND_PLACES=97, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=96, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=94, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=215, PETRI_PLACES=99, PETRI_TRANSITIONS=96} [2024-12-02 10:13:54,392 INFO L279 CegarLoopForPetriNet]: 97 programPoint places, 2 predicate places. [2024-12-02 10:13:54,392 INFO L471 AbstractCegarLoop]: Abstraction has has 99 places, 96 transitions, 215 flow [2024-12-02 10:13:54,392 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.333333333333336) internal successors, (142), 3 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:13:54,392 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 10:13:54,393 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2024-12-02 10:13:54,393 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-12-02 10:13:54,393 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2024-12-02 10:13:54,393 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:13:54,393 INFO L85 PathProgramCache]: Analyzing trace with hash 628250433, now seen corresponding path program 1 times [2024-12-02 10:13:54,393 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:13:54,394 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [157805885] [2024-12-02 10:13:54,394 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:13:54,394 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:13:54,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:13:54,445 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 10:13:54,445 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:13:54,445 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [157805885] [2024-12-02 10:13:54,445 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [157805885] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:13:54,445 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:13:54,445 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-12-02 10:13:54,445 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1037970395] [2024-12-02 10:13:54,446 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:13:54,446 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 10:13:54,446 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:13:54,446 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 10:13:54,446 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 10:13:54,450 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 46 out of 119 [2024-12-02 10:13:54,451 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 99 places, 96 transitions, 215 flow. Second operand has 3 states, 3 states have (on average 47.333333333333336) internal successors, (142), 3 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:13:54,451 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 10:13:54,451 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 46 of 119 [2024-12-02 10:13:54,451 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 10:13:54,718 INFO L124 PetriNetUnfolderBase]: 869/2702 cut-off events. [2024-12-02 10:13:54,718 INFO L125 PetriNetUnfolderBase]: For 14/14 co-relation queries the response was YES. [2024-12-02 10:13:54,720 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4479 conditions, 2702 events. 869/2702 cut-off events. For 14/14 co-relation queries the response was YES. Maximal size of possible extension queue 107. Compared 21803 event pairs, 765 based on Foata normal form. 1/2383 useless extension candidates. Maximal degree in co-relation 2261. Up to 1722 conditions per place. [2024-12-02 10:13:54,726 INFO L140 encePairwiseOnDemand]: 116/119 looper letters, 48 selfloop transitions, 2 changer transitions 0/95 dead transitions. [2024-12-02 10:13:54,726 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 100 places, 95 transitions, 313 flow [2024-12-02 10:13:54,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 10:13:54,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-12-02 10:13:54,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 188 transitions. [2024-12-02 10:13:54,728 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5266106442577031 [2024-12-02 10:13:54,728 INFO L175 Difference]: Start difference. First operand has 99 places, 96 transitions, 215 flow. Second operand 3 states and 188 transitions. [2024-12-02 10:13:54,728 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 100 places, 95 transitions, 313 flow [2024-12-02 10:13:54,730 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 98 places, 95 transitions, 309 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-12-02 10:13:54,731 INFO L231 Difference]: Finished difference. Result has 98 places, 95 transitions, 213 flow [2024-12-02 10:13:54,731 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=119, PETRI_DIFFERENCE_MINUEND_FLOW=209, PETRI_DIFFERENCE_MINUEND_PLACES=96, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=95, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=93, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=213, PETRI_PLACES=98, PETRI_TRANSITIONS=95} [2024-12-02 10:13:54,732 INFO L279 CegarLoopForPetriNet]: 97 programPoint places, 1 predicate places. [2024-12-02 10:13:54,732 INFO L471 AbstractCegarLoop]: Abstraction has has 98 places, 95 transitions, 213 flow [2024-12-02 10:13:54,732 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.333333333333336) internal successors, (142), 3 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:13:54,732 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 10:13:54,732 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2024-12-02 10:13:54,733 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-12-02 10:13:54,733 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2024-12-02 10:13:54,733 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:13:54,733 INFO L85 PathProgramCache]: Analyzing trace with hash 628250842, now seen corresponding path program 1 times [2024-12-02 10:13:54,733 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:13:54,733 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1721936119] [2024-12-02 10:13:54,734 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:13:54,734 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:13:54,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:13:54,797 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 10:13:54,797 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:13:54,797 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1721936119] [2024-12-02 10:13:54,797 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1721936119] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:13:54,797 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:13:54,798 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 10:13:54,798 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1375453351] [2024-12-02 10:13:54,798 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:13:54,798 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 10:13:54,798 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:13:54,798 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 10:13:54,798 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-12-02 10:13:54,808 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 46 out of 119 [2024-12-02 10:13:54,808 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 98 places, 95 transitions, 213 flow. Second operand has 5 states, 5 states have (on average 46.8) internal successors, (234), 5 states have internal predecessors, (234), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:13:54,808 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 10:13:54,808 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 46 of 119 [2024-12-02 10:13:54,808 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 10:13:55,129 INFO L124 PetriNetUnfolderBase]: 869/2694 cut-off events. [2024-12-02 10:13:55,129 INFO L125 PetriNetUnfolderBase]: For 14/14 co-relation queries the response was YES. [2024-12-02 10:13:55,132 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4471 conditions, 2694 events. 869/2694 cut-off events. For 14/14 co-relation queries the response was YES. Maximal size of possible extension queue 107. Compared 21722 event pairs, 748 based on Foata normal form. 1/2376 useless extension candidates. Maximal degree in co-relation 2253. Up to 1663 conditions per place. [2024-12-02 10:13:55,140 INFO L140 encePairwiseOnDemand]: 112/119 looper letters, 52 selfloop transitions, 7 changer transitions 8/111 dead transitions. [2024-12-02 10:13:55,140 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 101 places, 111 transitions, 379 flow [2024-12-02 10:13:55,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 10:13:55,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-12-02 10:13:55,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 297 transitions. [2024-12-02 10:13:55,141 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4991596638655462 [2024-12-02 10:13:55,142 INFO L175 Difference]: Start difference. First operand has 98 places, 95 transitions, 213 flow. Second operand 5 states and 297 transitions. [2024-12-02 10:13:55,142 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 101 places, 111 transitions, 379 flow [2024-12-02 10:13:55,143 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 99 places, 111 transitions, 375 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-12-02 10:13:55,144 INFO L231 Difference]: Finished difference. Result has 99 places, 94 transitions, 221 flow [2024-12-02 10:13:55,145 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=119, PETRI_DIFFERENCE_MINUEND_FLOW=207, PETRI_DIFFERENCE_MINUEND_PLACES=95, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=94, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=87, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=221, PETRI_PLACES=99, PETRI_TRANSITIONS=94} [2024-12-02 10:13:55,145 INFO L279 CegarLoopForPetriNet]: 97 programPoint places, 2 predicate places. [2024-12-02 10:13:55,145 INFO L471 AbstractCegarLoop]: Abstraction has has 99 places, 94 transitions, 221 flow [2024-12-02 10:13:55,146 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 46.8) internal successors, (234), 5 states have internal predecessors, (234), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:13:55,146 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 10:13:55,146 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:13:55,146 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-12-02 10:13:55,146 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2024-12-02 10:13:55,146 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:13:55,147 INFO L85 PathProgramCache]: Analyzing trace with hash 879649459, now seen corresponding path program 1 times [2024-12-02 10:13:55,147 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:13:55,147 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1971676748] [2024-12-02 10:13:55,147 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:13:55,147 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:13:55,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:13:55,223 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 10:13:55,223 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:13:55,223 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1971676748] [2024-12-02 10:13:55,223 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1971676748] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:13:55,223 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:13:55,223 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 10:13:55,223 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [966226423] [2024-12-02 10:13:55,224 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:13:55,224 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 10:13:55,224 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:13:55,224 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 10:13:55,224 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 10:13:55,233 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 45 out of 119 [2024-12-02 10:13:55,233 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 99 places, 94 transitions, 221 flow. Second operand has 4 states, 4 states have (on average 47.25) internal successors, (189), 4 states have internal predecessors, (189), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:13:55,233 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 10:13:55,233 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 45 of 119 [2024-12-02 10:13:55,233 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 10:13:55,574 INFO L124 PetriNetUnfolderBase]: 855/2371 cut-off events. [2024-12-02 10:13:55,574 INFO L125 PetriNetUnfolderBase]: For 44/44 co-relation queries the response was YES. [2024-12-02 10:13:55,576 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4178 conditions, 2371 events. 855/2371 cut-off events. For 44/44 co-relation queries the response was YES. Maximal size of possible extension queue 109. Compared 18442 event pairs, 86 based on Foata normal form. 36/2174 useless extension candidates. Maximal degree in co-relation 2061. Up to 1606 conditions per place. [2024-12-02 10:13:55,583 INFO L140 encePairwiseOnDemand]: 113/119 looper letters, 83 selfloop transitions, 3 changer transitions 0/127 dead transitions. [2024-12-02 10:13:55,583 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 100 places, 127 transitions, 459 flow [2024-12-02 10:13:55,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 10:13:55,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-12-02 10:13:55,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 268 transitions. [2024-12-02 10:13:55,584 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5630252100840336 [2024-12-02 10:13:55,584 INFO L175 Difference]: Start difference. First operand has 99 places, 94 transitions, 221 flow. Second operand 4 states and 268 transitions. [2024-12-02 10:13:55,584 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 100 places, 127 transitions, 459 flow [2024-12-02 10:13:55,587 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 96 places, 127 transitions, 445 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-12-02 10:13:55,588 INFO L231 Difference]: Finished difference. Result has 97 places, 92 transitions, 213 flow [2024-12-02 10:13:55,588 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=119, PETRI_DIFFERENCE_MINUEND_FLOW=203, PETRI_DIFFERENCE_MINUEND_PLACES=93, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=92, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=89, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=213, PETRI_PLACES=97, PETRI_TRANSITIONS=92} [2024-12-02 10:13:55,589 INFO L279 CegarLoopForPetriNet]: 97 programPoint places, 0 predicate places. [2024-12-02 10:13:55,589 INFO L471 AbstractCegarLoop]: Abstraction has has 97 places, 92 transitions, 213 flow [2024-12-02 10:13:55,589 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 47.25) internal successors, (189), 4 states have internal predecessors, (189), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:13:55,589 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 10:13:55,589 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:13:55,589 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-12-02 10:13:55,589 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2024-12-02 10:13:55,590 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:13:55,590 INFO L85 PathProgramCache]: Analyzing trace with hash -1738198505, now seen corresponding path program 1 times [2024-12-02 10:13:55,590 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:13:55,590 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1142629714] [2024-12-02 10:13:55,590 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:13:55,590 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:13:55,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 10:13:55,614 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-02 10:13:55,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 10:13:55,647 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-12-02 10:13:55,647 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-12-02 10:13:55,648 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (20 of 21 remaining) [2024-12-02 10:13:55,649 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 21 remaining) [2024-12-02 10:13:55,650 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 21 remaining) [2024-12-02 10:13:55,650 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 21 remaining) [2024-12-02 10:13:55,650 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 21 remaining) [2024-12-02 10:13:55,650 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 21 remaining) [2024-12-02 10:13:55,650 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 21 remaining) [2024-12-02 10:13:55,650 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 21 remaining) [2024-12-02 10:13:55,650 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 21 remaining) [2024-12-02 10:13:55,650 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 21 remaining) [2024-12-02 10:13:55,650 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 21 remaining) [2024-12-02 10:13:55,650 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 21 remaining) [2024-12-02 10:13:55,650 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 21 remaining) [2024-12-02 10:13:55,650 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 21 remaining) [2024-12-02 10:13:55,651 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 21 remaining) [2024-12-02 10:13:55,651 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 21 remaining) [2024-12-02 10:13:55,651 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 21 remaining) [2024-12-02 10:13:55,651 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 21 remaining) [2024-12-02 10:13:55,651 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 21 remaining) [2024-12-02 10:13:55,651 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 21 remaining) [2024-12-02 10:13:55,651 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 21 remaining) [2024-12-02 10:13:55,651 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-12-02 10:13:55,651 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2024-12-02 10:13:55,654 WARN L246 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-12-02 10:13:55,654 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-12-02 10:13:55,690 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-12-02 10:13:55,694 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 133 places, 165 transitions, 346 flow [2024-12-02 10:13:55,729 INFO L124 PetriNetUnfolderBase]: 60/281 cut-off events. [2024-12-02 10:13:55,730 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-12-02 10:13:55,731 INFO L83 FinitePrefix]: Finished finitePrefix Result has 293 conditions, 281 events. 60/281 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 1225 event pairs, 0 based on Foata normal form. 0/183 useless extension candidates. Maximal degree in co-relation 169. Up to 12 conditions per place. [2024-12-02 10:13:55,731 INFO L82 GeneralOperation]: Start removeDead. Operand has 133 places, 165 transitions, 346 flow [2024-12-02 10:13:55,734 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 133 places, 164 transitions, 344 flow [2024-12-02 10:13:55,735 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 10:13:55,736 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;@41dbbcc8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 10:13:55,736 INFO L334 AbstractCegarLoop]: Starting to check reachability of 25 error locations. [2024-12-02 10:13:55,738 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-12-02 10:13:55,738 INFO L124 PetriNetUnfolderBase]: 0/4 cut-off events. [2024-12-02 10:13:55,738 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-12-02 10:13:55,738 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 10:13:55,738 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2024-12-02 10:13:55,738 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-12-02 10:13:55,739 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:13:55,739 INFO L85 PathProgramCache]: Analyzing trace with hash 25345493, now seen corresponding path program 1 times [2024-12-02 10:13:55,739 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:13:55,739 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1553810545] [2024-12-02 10:13:55,739 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:13:55,739 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:13:55,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:13:55,790 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 10:13:55,790 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:13:55,790 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1553810545] [2024-12-02 10:13:55,790 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1553810545] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:13:55,790 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:13:55,791 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-12-02 10:13:55,791 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [24157649] [2024-12-02 10:13:55,791 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:13:55,791 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 10:13:55,791 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:13:55,791 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 10:13:55,791 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 10:13:55,796 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 165 [2024-12-02 10:13:55,797 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 133 places, 164 transitions, 344 flow. Second operand has 4 states, 4 states have (on average 64.0) internal successors, (256), 4 states have internal predecessors, (256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:13:55,797 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 10:13:55,797 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 165 [2024-12-02 10:13:55,797 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 10:14:00,602 INFO L124 PetriNetUnfolderBase]: 31927/68045 cut-off events. [2024-12-02 10:14:00,603 INFO L125 PetriNetUnfolderBase]: For 214/214 co-relation queries the response was YES. [2024-12-02 10:14:00,660 INFO L83 FinitePrefix]: Finished finitePrefix Result has 115780 conditions, 68045 events. 31927/68045 cut-off events. For 214/214 co-relation queries the response was YES. Maximal size of possible extension queue 2040. Compared 762580 event pairs, 28458 based on Foata normal form. 15650/76272 useless extension candidates. Maximal degree in co-relation 50042. Up to 24466 conditions per place. [2024-12-02 10:14:00,816 INFO L140 encePairwiseOnDemand]: 129/165 looper letters, 128 selfloop transitions, 5 changer transitions 0/196 dead transitions. [2024-12-02 10:14:00,816 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 135 places, 196 transitions, 688 flow [2024-12-02 10:14:00,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 10:14:00,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-12-02 10:14:00,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 446 transitions. [2024-12-02 10:14:00,818 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6757575757575758 [2024-12-02 10:14:00,818 INFO L175 Difference]: Start difference. First operand has 133 places, 164 transitions, 344 flow. Second operand 4 states and 446 transitions. [2024-12-02 10:14:00,818 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 135 places, 196 transitions, 688 flow [2024-12-02 10:14:00,819 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 135 places, 196 transitions, 688 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-12-02 10:14:00,820 INFO L231 Difference]: Finished difference. Result has 136 places, 134 transitions, 301 flow [2024-12-02 10:14:00,821 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=282, PETRI_DIFFERENCE_MINUEND_PLACES=132, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=133, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=128, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=301, PETRI_PLACES=136, PETRI_TRANSITIONS=134} [2024-12-02 10:14:00,821 INFO L279 CegarLoopForPetriNet]: 133 programPoint places, 3 predicate places. [2024-12-02 10:14:00,821 INFO L471 AbstractCegarLoop]: Abstraction has has 136 places, 134 transitions, 301 flow [2024-12-02 10:14:00,821 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 64.0) internal successors, (256), 4 states have internal predecessors, (256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:14:00,821 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 10:14:00,821 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2024-12-02 10:14:00,822 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-12-02 10:14:00,822 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-12-02 10:14:00,822 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:14:00,822 INFO L85 PathProgramCache]: Analyzing trace with hash 25345482, now seen corresponding path program 1 times [2024-12-02 10:14:00,822 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:14:00,822 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [477948923] [2024-12-02 10:14:00,822 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:14:00,822 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:14:00,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:14:00,853 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 10:14:00,854 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:14:00,854 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [477948923] [2024-12-02 10:14:00,854 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [477948923] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:14:00,854 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:14:00,854 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-12-02 10:14:00,854 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1986854110] [2024-12-02 10:14:00,854 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:14:00,854 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 10:14:00,854 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:14:00,855 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 10:14:00,855 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 10:14:00,861 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 165 [2024-12-02 10:14:00,862 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 136 places, 134 transitions, 301 flow. Second operand has 3 states, 3 states have (on average 64.33333333333333) internal successors, (193), 3 states have internal predecessors, (193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:14:00,862 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 10:14:00,862 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 165 [2024-12-02 10:14:00,862 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 10:14:04,923 INFO L124 PetriNetUnfolderBase]: 31941/68321 cut-off events. [2024-12-02 10:14:04,923 INFO L125 PetriNetUnfolderBase]: For 650/650 co-relation queries the response was YES. [2024-12-02 10:14:04,993 INFO L83 FinitePrefix]: Finished finitePrefix Result has 117161 conditions, 68321 events. 31941/68321 cut-off events. For 650/650 co-relation queries the response was YES. Maximal size of possible extension queue 2040. Compared 767848 event pairs, 29104 based on Foata normal form. 1/60783 useless extension candidates. Maximal degree in co-relation 59201. Up to 47556 conditions per place. [2024-12-02 10:14:05,149 INFO L140 encePairwiseOnDemand]: 162/165 looper letters, 69 selfloop transitions, 2 changer transitions 0/133 dead transitions. [2024-12-02 10:14:05,149 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 137 places, 133 transitions, 441 flow [2024-12-02 10:14:05,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 10:14:05,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-12-02 10:14:05,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 260 transitions. [2024-12-02 10:14:05,150 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5252525252525253 [2024-12-02 10:14:05,150 INFO L175 Difference]: Start difference. First operand has 136 places, 134 transitions, 301 flow. Second operand 3 states and 260 transitions. [2024-12-02 10:14:05,150 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 137 places, 133 transitions, 441 flow [2024-12-02 10:14:05,153 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 135 places, 133 transitions, 436 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-12-02 10:14:05,154 INFO L231 Difference]: Finished difference. Result has 135 places, 133 transitions, 298 flow [2024-12-02 10:14:05,154 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=294, PETRI_DIFFERENCE_MINUEND_PLACES=133, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=133, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=131, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=298, PETRI_PLACES=135, PETRI_TRANSITIONS=133} [2024-12-02 10:14:05,155 INFO L279 CegarLoopForPetriNet]: 133 programPoint places, 2 predicate places. [2024-12-02 10:14:05,155 INFO L471 AbstractCegarLoop]: Abstraction has has 135 places, 133 transitions, 298 flow [2024-12-02 10:14:05,155 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 64.33333333333333) internal successors, (193), 3 states have internal predecessors, (193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:14:05,155 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 10:14:05,155 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2024-12-02 10:14:05,155 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-12-02 10:14:05,156 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-12-02 10:14:05,156 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:14:05,156 INFO L85 PathProgramCache]: Analyzing trace with hash 785710758, now seen corresponding path program 1 times [2024-12-02 10:14:05,156 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:14:05,156 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1466426024] [2024-12-02 10:14:05,156 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:14:05,156 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:14:05,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:14:05,194 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 10:14:05,194 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:14:05,194 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1466426024] [2024-12-02 10:14:05,194 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1466426024] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:14:05,194 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:14:05,194 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-12-02 10:14:05,194 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1272827789] [2024-12-02 10:14:05,194 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:14:05,194 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 10:14:05,195 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:14:05,195 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 10:14:05,195 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 10:14:05,199 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 165 [2024-12-02 10:14:05,199 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 135 places, 133 transitions, 298 flow. Second operand has 3 states, 3 states have (on average 64.33333333333333) internal successors, (193), 3 states have internal predecessors, (193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:14:05,199 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 10:14:05,199 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 165 [2024-12-02 10:14:05,200 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 10:14:08,618 INFO L124 PetriNetUnfolderBase]: 31941/68320 cut-off events. [2024-12-02 10:14:08,618 INFO L125 PetriNetUnfolderBase]: For 650/650 co-relation queries the response was YES. [2024-12-02 10:14:08,695 INFO L83 FinitePrefix]: Finished finitePrefix Result has 116798 conditions, 68320 events. 31941/68320 cut-off events. For 650/650 co-relation queries the response was YES. Maximal size of possible extension queue 2037. Compared 767472 event pairs, 29104 based on Foata normal form. 1/60782 useless extension candidates. Maximal degree in co-relation 59214. Up to 47556 conditions per place. [2024-12-02 10:14:08,833 INFO L140 encePairwiseOnDemand]: 162/165 looper letters, 68 selfloop transitions, 2 changer transitions 0/132 dead transitions. [2024-12-02 10:14:08,833 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 136 places, 132 transitions, 436 flow [2024-12-02 10:14:08,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 10:14:08,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-12-02 10:14:08,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 259 transitions. [2024-12-02 10:14:08,835 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5232323232323233 [2024-12-02 10:14:08,835 INFO L175 Difference]: Start difference. First operand has 135 places, 133 transitions, 298 flow. Second operand 3 states and 259 transitions. [2024-12-02 10:14:08,835 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 136 places, 132 transitions, 436 flow [2024-12-02 10:14:08,836 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 134 places, 132 transitions, 432 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-12-02 10:14:08,837 INFO L231 Difference]: Finished difference. Result has 134 places, 132 transitions, 296 flow [2024-12-02 10:14:08,838 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=292, PETRI_DIFFERENCE_MINUEND_PLACES=132, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=132, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=130, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=296, PETRI_PLACES=134, PETRI_TRANSITIONS=132} [2024-12-02 10:14:08,838 INFO L279 CegarLoopForPetriNet]: 133 programPoint places, 1 predicate places. [2024-12-02 10:14:08,838 INFO L471 AbstractCegarLoop]: Abstraction has has 134 places, 132 transitions, 296 flow [2024-12-02 10:14:08,838 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 64.33333333333333) internal successors, (193), 3 states have internal predecessors, (193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:14:08,838 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 10:14:08,838 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2024-12-02 10:14:08,839 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-12-02 10:14:08,839 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-12-02 10:14:08,839 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:14:08,839 INFO L85 PathProgramCache]: Analyzing trace with hash 785711167, now seen corresponding path program 1 times [2024-12-02 10:14:08,839 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:14:08,839 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1432203006] [2024-12-02 10:14:08,839 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:14:08,839 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:14:08,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:14:08,884 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 10:14:08,884 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:14:08,884 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1432203006] [2024-12-02 10:14:08,884 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1432203006] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:14:08,884 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:14:08,884 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 10:14:08,884 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [997581366] [2024-12-02 10:14:08,884 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:14:08,885 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 10:14:08,885 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:14:08,885 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 10:14:08,885 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-12-02 10:14:08,891 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 165 [2024-12-02 10:14:08,892 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 134 places, 132 transitions, 296 flow. Second operand has 5 states, 5 states have (on average 63.8) internal successors, (319), 5 states have internal predecessors, (319), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:14:08,892 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 10:14:08,892 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 165 [2024-12-02 10:14:08,892 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 10:14:12,321 INFO L124 PetriNetUnfolderBase]: 31927/68042 cut-off events. [2024-12-02 10:14:12,321 INFO L125 PetriNetUnfolderBase]: For 650/650 co-relation queries the response was YES. [2024-12-02 10:14:12,399 INFO L83 FinitePrefix]: Finished finitePrefix Result has 116506 conditions, 68042 events. 31927/68042 cut-off events. For 650/650 co-relation queries the response was YES. Maximal size of possible extension queue 2037. Compared 762395 event pairs, 28458 based on Foata normal form. 1/60565 useless extension candidates. Maximal degree in co-relation 58910. Up to 46147 conditions per place. [2024-12-02 10:14:12,536 INFO L140 encePairwiseOnDemand]: 158/165 looper letters, 97 selfloop transitions, 7 changer transitions 0/165 dead transitions. [2024-12-02 10:14:12,536 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 137 places, 165 transitions, 570 flow [2024-12-02 10:14:12,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 10:14:12,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-12-02 10:14:12,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 419 transitions. [2024-12-02 10:14:12,537 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5078787878787879 [2024-12-02 10:14:12,537 INFO L175 Difference]: Start difference. First operand has 134 places, 132 transitions, 296 flow. Second operand 5 states and 419 transitions. [2024-12-02 10:14:12,538 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 137 places, 165 transitions, 570 flow [2024-12-02 10:14:12,539 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 135 places, 165 transitions, 566 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-12-02 10:14:12,540 INFO L231 Difference]: Finished difference. Result has 135 places, 131 transitions, 304 flow [2024-12-02 10:14:12,540 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=290, PETRI_DIFFERENCE_MINUEND_PLACES=131, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=131, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=124, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=304, PETRI_PLACES=135, PETRI_TRANSITIONS=131} [2024-12-02 10:14:12,541 INFO L279 CegarLoopForPetriNet]: 133 programPoint places, 2 predicate places. [2024-12-02 10:14:12,541 INFO L471 AbstractCegarLoop]: Abstraction has has 135 places, 131 transitions, 304 flow [2024-12-02 10:14:12,541 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 63.8) internal successors, (319), 5 states have internal predecessors, (319), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:14:12,541 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 10:14:12,541 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:14:12,541 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-12-02 10:14:12,541 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-12-02 10:14:12,542 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:14:12,542 INFO L85 PathProgramCache]: Analyzing trace with hash -1385510664, now seen corresponding path program 1 times [2024-12-02 10:14:12,542 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:14:12,542 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1556590756] [2024-12-02 10:14:12,542 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:14:12,542 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:14:12,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:14:12,595 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 10:14:12,595 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:14:12,595 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1556590756] [2024-12-02 10:14:12,595 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1556590756] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:14:12,595 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:14:12,595 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 10:14:12,595 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2045071005] [2024-12-02 10:14:12,596 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:14:12,596 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 10:14:12,596 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:14:12,596 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 10:14:12,596 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 10:14:12,603 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 62 out of 165 [2024-12-02 10:14:12,604 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 135 places, 131 transitions, 304 flow. Second operand has 4 states, 4 states have (on average 64.25) internal successors, (257), 4 states have internal predecessors, (257), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:14:12,604 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 10:14:12,604 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 62 of 165 [2024-12-02 10:14:12,604 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 10:14:16,942 INFO L124 PetriNetUnfolderBase]: 35861/76791 cut-off events. [2024-12-02 10:14:16,942 INFO L125 PetriNetUnfolderBase]: For 1430/1430 co-relation queries the response was YES. [2024-12-02 10:14:17,034 INFO L83 FinitePrefix]: Finished finitePrefix Result has 131786 conditions, 76791 events. 35861/76791 cut-off events. For 1430/1430 co-relation queries the response was YES. Maximal size of possible extension queue 2164. Compared 876123 event pairs, 19755 based on Foata normal form. 36/68342 useless extension candidates. Maximal degree in co-relation 63653. Up to 53239 conditions per place. [2024-12-02 10:14:17,188 INFO L140 encePairwiseOnDemand]: 159/165 looper letters, 107 selfloop transitions, 3 changer transitions 0/168 dead transitions. [2024-12-02 10:14:17,188 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 138 places, 168 transitions, 598 flow [2024-12-02 10:14:17,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 10:14:17,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-12-02 10:14:17,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 360 transitions. [2024-12-02 10:14:17,189 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5454545454545454 [2024-12-02 10:14:17,190 INFO L175 Difference]: Start difference. First operand has 135 places, 131 transitions, 304 flow. Second operand 4 states and 360 transitions. [2024-12-02 10:14:17,190 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 138 places, 168 transitions, 598 flow [2024-12-02 10:14:17,427 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 134 places, 168 transitions, 584 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-12-02 10:14:17,429 INFO L231 Difference]: Finished difference. Result has 136 places, 133 transitions, 314 flow [2024-12-02 10:14:17,429 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=290, PETRI_DIFFERENCE_MINUEND_PLACES=131, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=131, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=128, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=314, PETRI_PLACES=136, PETRI_TRANSITIONS=133} [2024-12-02 10:14:17,430 INFO L279 CegarLoopForPetriNet]: 133 programPoint places, 3 predicate places. [2024-12-02 10:14:17,430 INFO L471 AbstractCegarLoop]: Abstraction has has 136 places, 133 transitions, 314 flow [2024-12-02 10:14:17,430 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 64.25) internal successors, (257), 4 states have internal predecessors, (257), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:14:17,430 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 10:14:17,430 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:14:17,430 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-12-02 10:14:17,430 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-12-02 10:14:17,430 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:14:17,431 INFO L85 PathProgramCache]: Analyzing trace with hash 1194851831, now seen corresponding path program 1 times [2024-12-02 10:14:17,431 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:14:17,431 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [878745958] [2024-12-02 10:14:17,431 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:14:17,431 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:14:17,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:14:17,507 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 10:14:17,507 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:14:17,507 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [878745958] [2024-12-02 10:14:17,507 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [878745958] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:14:17,508 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:14:17,508 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 10:14:17,508 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1433202589] [2024-12-02 10:14:17,508 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:14:17,508 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 10:14:17,508 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:14:17,508 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 10:14:17,509 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-12-02 10:14:17,520 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 62 out of 165 [2024-12-02 10:14:17,521 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 136 places, 133 transitions, 314 flow. Second operand has 6 states, 6 states have (on average 64.16666666666667) internal successors, (385), 6 states have internal predecessors, (385), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:14:17,521 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 10:14:17,521 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 62 of 165 [2024-12-02 10:14:17,521 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 10:14:21,062 INFO L124 PetriNetUnfolderBase]: 32781/63366 cut-off events. [2024-12-02 10:14:21,062 INFO L125 PetriNetUnfolderBase]: For 2164/2164 co-relation queries the response was YES. [2024-12-02 10:14:21,137 INFO L83 FinitePrefix]: Finished finitePrefix Result has 116670 conditions, 63366 events. 32781/63366 cut-off events. For 2164/2164 co-relation queries the response was YES. Maximal size of possible extension queue 1868. Compared 667254 event pairs, 1224 based on Foata normal form. 648/58288 useless extension candidates. Maximal degree in co-relation 56593. Up to 40611 conditions per place. [2024-12-02 10:14:21,252 INFO L140 encePairwiseOnDemand]: 160/165 looper letters, 171 selfloop transitions, 6 changer transitions 0/235 dead transitions. [2024-12-02 10:14:21,252 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 140 places, 235 transitions, 870 flow [2024-12-02 10:14:21,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 10:14:21,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-12-02 10:14:21,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 549 transitions. [2024-12-02 10:14:21,255 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5545454545454546 [2024-12-02 10:14:21,255 INFO L175 Difference]: Start difference. First operand has 136 places, 133 transitions, 314 flow. Second operand 6 states and 549 transitions. [2024-12-02 10:14:21,255 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 140 places, 235 transitions, 870 flow [2024-12-02 10:14:21,259 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 139 places, 235 transitions, 868 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-12-02 10:14:21,260 INFO L231 Difference]: Finished difference. Result has 139 places, 132 transitions, 320 flow [2024-12-02 10:14:21,261 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=308, PETRI_DIFFERENCE_MINUEND_PLACES=134, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=132, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=126, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=320, PETRI_PLACES=139, PETRI_TRANSITIONS=132} [2024-12-02 10:14:21,261 INFO L279 CegarLoopForPetriNet]: 133 programPoint places, 6 predicate places. [2024-12-02 10:14:21,261 INFO L471 AbstractCegarLoop]: Abstraction has has 139 places, 132 transitions, 320 flow [2024-12-02 10:14:21,262 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 64.16666666666667) internal successors, (385), 6 states have internal predecessors, (385), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:14:21,262 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 10:14:21,262 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:14:21,262 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-12-02 10:14:21,262 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-12-02 10:14:21,262 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:14:21,262 INFO L85 PathProgramCache]: Analyzing trace with hash -1614298024, now seen corresponding path program 1 times [2024-12-02 10:14:21,262 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:14:21,262 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [147435084] [2024-12-02 10:14:21,262 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:14:21,262 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:14:21,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:14:21,305 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 10:14:21,305 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:14:21,306 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [147435084] [2024-12-02 10:14:21,306 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [147435084] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:14:21,306 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:14:21,306 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 10:14:21,306 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [447312750] [2024-12-02 10:14:21,306 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:14:21,306 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 10:14:21,306 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:14:21,306 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 10:14:21,307 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 10:14:21,311 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 62 out of 165 [2024-12-02 10:14:21,312 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 139 places, 132 transitions, 320 flow. Second operand has 4 states, 4 states have (on average 65.25) internal successors, (261), 4 states have internal predecessors, (261), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:14:21,312 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 10:14:21,312 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 62 of 165 [2024-12-02 10:14:21,312 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 10:14:25,250 INFO L124 PetriNetUnfolderBase]: 31631/61268 cut-off events. [2024-12-02 10:14:25,251 INFO L125 PetriNetUnfolderBase]: For 5034/5034 co-relation queries the response was YES. [2024-12-02 10:14:25,328 INFO L83 FinitePrefix]: Finished finitePrefix Result has 114146 conditions, 61268 events. 31631/61268 cut-off events. For 5034/5034 co-relation queries the response was YES. Maximal size of possible extension queue 1846. Compared 642018 event pairs, 1224 based on Foata normal form. 648/56872 useless extension candidates. Maximal degree in co-relation 55331. Up to 42553 conditions per place. [2024-12-02 10:14:25,445 INFO L140 encePairwiseOnDemand]: 160/165 looper letters, 136 selfloop transitions, 6 changer transitions 0/200 dead transitions. [2024-12-02 10:14:25,445 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 141 places, 200 transitions, 738 flow [2024-12-02 10:14:25,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 10:14:25,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-12-02 10:14:25,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 388 transitions. [2024-12-02 10:14:25,448 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5878787878787879 [2024-12-02 10:14:25,448 INFO L175 Difference]: Start difference. First operand has 139 places, 132 transitions, 320 flow. Second operand 4 states and 388 transitions. [2024-12-02 10:14:25,448 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 141 places, 200 transitions, 738 flow [2024-12-02 10:14:25,462 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 136 places, 200 transitions, 722 flow, removed 3 selfloop flow, removed 5 redundant places. [2024-12-02 10:14:25,463 INFO L231 Difference]: Finished difference. Result has 137 places, 132 transitions, 320 flow [2024-12-02 10:14:25,464 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=300, PETRI_DIFFERENCE_MINUEND_PLACES=133, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=131, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=125, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=320, PETRI_PLACES=137, PETRI_TRANSITIONS=132} [2024-12-02 10:14:25,464 INFO L279 CegarLoopForPetriNet]: 133 programPoint places, 4 predicate places. [2024-12-02 10:14:25,464 INFO L471 AbstractCegarLoop]: Abstraction has has 137 places, 132 transitions, 320 flow [2024-12-02 10:14:25,464 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 65.25) internal successors, (261), 4 states have internal predecessors, (261), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:14:25,464 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 10:14:25,464 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:14:25,464 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-12-02 10:14:25,464 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-12-02 10:14:25,465 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:14:25,465 INFO L85 PathProgramCache]: Analyzing trace with hash -341418577, now seen corresponding path program 1 times [2024-12-02 10:14:25,465 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:14:25,465 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [492021973] [2024-12-02 10:14:25,465 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:14:25,465 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:14:25,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:14:25,526 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 10:14:25,527 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:14:25,527 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [492021973] [2024-12-02 10:14:25,527 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [492021973] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:14:25,527 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:14:25,527 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-12-02 10:14:25,527 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [643630618] [2024-12-02 10:14:25,527 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:14:25,527 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 10:14:25,527 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:14:25,527 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 10:14:25,528 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 10:14:25,533 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 165 [2024-12-02 10:14:25,534 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 137 places, 132 transitions, 320 flow. Second operand has 4 states, 4 states have (on average 66.25) internal successors, (265), 4 states have internal predecessors, (265), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:14:25,534 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 10:14:25,534 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 165 [2024-12-02 10:14:25,534 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 10:14:30,814 INFO L124 PetriNetUnfolderBase]: 46385/95095 cut-off events. [2024-12-02 10:14:30,814 INFO L125 PetriNetUnfolderBase]: For 8174/8174 co-relation queries the response was YES. [2024-12-02 10:14:30,934 INFO L83 FinitePrefix]: Finished finitePrefix Result has 171328 conditions, 95095 events. 46385/95095 cut-off events. For 8174/8174 co-relation queries the response was YES. Maximal size of possible extension queue 3002. Compared 1089720 event pairs, 16289 based on Foata normal form. 1114/87460 useless extension candidates. Maximal degree in co-relation 82280. Up to 44124 conditions per place. [2024-12-02 10:14:31,284 INFO L140 encePairwiseOnDemand]: 153/165 looper letters, 208 selfloop transitions, 16 changer transitions 0/282 dead transitions. [2024-12-02 10:14:31,284 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 141 places, 282 transitions, 1139 flow [2024-12-02 10:14:31,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 10:14:31,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-12-02 10:14:31,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 535 transitions. [2024-12-02 10:14:31,286 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6484848484848484 [2024-12-02 10:14:31,286 INFO L175 Difference]: Start difference. First operand has 137 places, 132 transitions, 320 flow. Second operand 5 states and 535 transitions. [2024-12-02 10:14:31,286 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 141 places, 282 transitions, 1139 flow [2024-12-02 10:14:31,290 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 139 places, 282 transitions, 1123 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-12-02 10:14:31,292 INFO L231 Difference]: Finished difference. Result has 143 places, 147 transitions, 440 flow [2024-12-02 10:14:31,292 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=312, PETRI_DIFFERENCE_MINUEND_PLACES=135, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=132, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=122, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=440, PETRI_PLACES=143, PETRI_TRANSITIONS=147} [2024-12-02 10:14:31,292 INFO L279 CegarLoopForPetriNet]: 133 programPoint places, 10 predicate places. [2024-12-02 10:14:31,293 INFO L471 AbstractCegarLoop]: Abstraction has has 143 places, 147 transitions, 440 flow [2024-12-02 10:14:31,293 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 66.25) internal successors, (265), 4 states have internal predecessors, (265), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:14:31,293 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 10:14:31,293 INFO L206 CegarLoopForPetriNet]: trace histogram [3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:14:31,293 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-12-02 10:14:31,293 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-12-02 10:14:31,293 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:14:31,293 INFO L85 PathProgramCache]: Analyzing trace with hash -857179875, now seen corresponding path program 1 times [2024-12-02 10:14:31,293 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:14:31,293 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [387263341] [2024-12-02 10:14:31,293 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:14:31,293 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:14:31,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 10:14:31,307 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-02 10:14:31,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 10:14:31,322 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-12-02 10:14:31,322 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-12-02 10:14:31,322 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (24 of 25 remaining) [2024-12-02 10:14:31,322 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (23 of 25 remaining) [2024-12-02 10:14:31,322 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (22 of 25 remaining) [2024-12-02 10:14:31,322 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 25 remaining) [2024-12-02 10:14:31,322 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 25 remaining) [2024-12-02 10:14:31,322 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 25 remaining) [2024-12-02 10:14:31,322 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 25 remaining) [2024-12-02 10:14:31,322 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 25 remaining) [2024-12-02 10:14:31,322 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 25 remaining) [2024-12-02 10:14:31,322 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 25 remaining) [2024-12-02 10:14:31,323 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 25 remaining) [2024-12-02 10:14:31,323 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 25 remaining) [2024-12-02 10:14:31,323 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 25 remaining) [2024-12-02 10:14:31,323 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 25 remaining) [2024-12-02 10:14:31,323 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 25 remaining) [2024-12-02 10:14:31,323 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 25 remaining) [2024-12-02 10:14:31,323 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 25 remaining) [2024-12-02 10:14:31,323 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 25 remaining) [2024-12-02 10:14:31,323 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 25 remaining) [2024-12-02 10:14:31,323 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 25 remaining) [2024-12-02 10:14:31,323 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 25 remaining) [2024-12-02 10:14:31,323 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 25 remaining) [2024-12-02 10:14:31,323 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 25 remaining) [2024-12-02 10:14:31,323 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 25 remaining) [2024-12-02 10:14:31,323 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 25 remaining) [2024-12-02 10:14:31,323 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-12-02 10:14:31,324 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:14:31,325 WARN L246 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2024-12-02 10:14:31,325 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2024-12-02 10:14:31,351 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2024-12-02 10:14:31,353 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 169 places, 211 transitions, 449 flow [2024-12-02 10:14:31,375 INFO L124 PetriNetUnfolderBase]: 87/416 cut-off events. [2024-12-02 10:14:31,375 INFO L125 PetriNetUnfolderBase]: For 19/19 co-relation queries the response was YES. [2024-12-02 10:14:31,376 INFO L83 FinitePrefix]: Finished finitePrefix Result has 441 conditions, 416 events. 87/416 cut-off events. For 19/19 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 1971 event pairs, 1 based on Foata normal form. 0/273 useless extension candidates. Maximal degree in co-relation 289. Up to 16 conditions per place. [2024-12-02 10:14:31,376 INFO L82 GeneralOperation]: Start removeDead. Operand has 169 places, 211 transitions, 449 flow [2024-12-02 10:14:31,379 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 169 places, 210 transitions, 447 flow [2024-12-02 10:14:31,380 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 10:14:31,380 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;@41dbbcc8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 10:14:31,380 INFO L334 AbstractCegarLoop]: Starting to check reachability of 29 error locations. [2024-12-02 10:14:31,381 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-12-02 10:14:31,381 INFO L124 PetriNetUnfolderBase]: 0/4 cut-off events. [2024-12-02 10:14:31,381 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-12-02 10:14:31,381 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 10:14:31,381 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2024-12-02 10:14:31,381 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 26 more)] === [2024-12-02 10:14:31,382 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:14:31,382 INFO L85 PathProgramCache]: Analyzing trace with hash 31840917, now seen corresponding path program 1 times [2024-12-02 10:14:31,382 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:14:31,382 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [67741979] [2024-12-02 10:14:31,382 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:14:31,382 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:14:31,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:14:31,407 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 10:14:31,407 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:14:31,407 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [67741979] [2024-12-02 10:14:31,407 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [67741979] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:14:31,407 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:14:31,407 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-12-02 10:14:31,407 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1697879606] [2024-12-02 10:14:31,407 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:14:31,408 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 10:14:31,408 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:14:31,408 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 10:14:31,408 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 10:14:31,416 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 80 out of 211 [2024-12-02 10:14:31,416 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 169 places, 210 transitions, 447 flow. Second operand has 4 states, 4 states have (on average 81.0) internal successors, (324), 4 states have internal predecessors, (324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:14:31,416 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 10:14:31,416 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 80 of 211 [2024-12-02 10:14:31,416 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand