./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/goblint-regression/13-privatized_04-priv_multi_true.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version cf1a7837 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b61f8f52-155b-43bb-8029-6d31276417c2/bin/uautomizer-verify-uTZkv6EMXl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b61f8f52-155b-43bb-8029-6d31276417c2/bin/uautomizer-verify-uTZkv6EMXl/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b61f8f52-155b-43bb-8029-6d31276417c2/bin/uautomizer-verify-uTZkv6EMXl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b61f8f52-155b-43bb-8029-6d31276417c2/bin/uautomizer-verify-uTZkv6EMXl/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/13-privatized_04-priv_multi_true.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b61f8f52-155b-43bb-8029-6d31276417c2/bin/uautomizer-verify-uTZkv6EMXl/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b61f8f52-155b-43bb-8029-6d31276417c2/bin/uautomizer-verify-uTZkv6EMXl --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 d5772eac83993f999ed7a0d2c72e283c734e18136b4020af8f8e407255c20c04 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 02:25:17,484 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 02:25:17,605 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b61f8f52-155b-43bb-8029-6d31276417c2/bin/uautomizer-verify-uTZkv6EMXl/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-11-12 02:25:17,617 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 02:25:17,617 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 02:25:17,656 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 02:25:17,658 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 02:25:17,658 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 02:25:17,659 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 02:25:17,664 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 02:25:17,665 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-12 02:25:17,666 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-12 02:25:17,666 INFO L153 SettingsManager]: * Use SBE=true [2023-11-12 02:25:17,668 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 02:25:17,668 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-12 02:25:17,669 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-12 02:25:17,669 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-12 02:25:17,669 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-12 02:25:17,670 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 02:25:17,670 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-12 02:25:17,671 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 02:25:17,671 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-12 02:25:17,672 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-12 02:25:17,672 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-12 02:25:17,672 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-12 02:25:17,673 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-12 02:25:17,673 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 02:25:17,674 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 02:25:17,675 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-12 02:25:17,675 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 02:25:17,676 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 02:25:17,677 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 02:25:17,677 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 02:25:17,677 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-12 02:25:17,678 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-12 02:25:17,678 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-12 02:25:17,678 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-12 02:25:17,678 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-12 02:25:17,679 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-12 02:25:17,679 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 02:25:17,679 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-12 02:25:17,679 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b61f8f52-155b-43bb-8029-6d31276417c2/bin/uautomizer-verify-uTZkv6EMXl/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b61f8f52-155b-43bb-8029-6d31276417c2/bin/uautomizer-verify-uTZkv6EMXl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d5772eac83993f999ed7a0d2c72e283c734e18136b4020af8f8e407255c20c04 [2023-11-12 02:25:17,973 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 02:25:18,007 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 02:25:18,010 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 02:25:18,011 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 02:25:18,012 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 02:25:18,013 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b61f8f52-155b-43bb-8029-6d31276417c2/bin/uautomizer-verify-uTZkv6EMXl/../../sv-benchmarks/c/goblint-regression/13-privatized_04-priv_multi_true.i [2023-11-12 02:25:21,163 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 02:25:21,478 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 02:25:21,479 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b61f8f52-155b-43bb-8029-6d31276417c2/sv-benchmarks/c/goblint-regression/13-privatized_04-priv_multi_true.i [2023-11-12 02:25:21,496 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b61f8f52-155b-43bb-8029-6d31276417c2/bin/uautomizer-verify-uTZkv6EMXl/data/3850f9467/85cc52e019a844a0a7ad72c9f0c612d8/FLAG89909c2f9 [2023-11-12 02:25:21,511 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b61f8f52-155b-43bb-8029-6d31276417c2/bin/uautomizer-verify-uTZkv6EMXl/data/3850f9467/85cc52e019a844a0a7ad72c9f0c612d8 [2023-11-12 02:25:21,513 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 02:25:21,515 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 02:25:21,516 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 02:25:21,516 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 02:25:21,521 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 02:25:21,522 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:25:21" (1/1) ... [2023-11-12 02:25:21,523 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@567f5d60 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:25:21, skipping insertion in model container [2023-11-12 02:25:21,523 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:25:21" (1/1) ... [2023-11-12 02:25:21,581 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 02:25:22,090 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:25:22,105 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 02:25:22,184 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:25:22,292 WARN L672 CHandler]: The function sleep is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 02:25:22,300 INFO L206 MainTranslator]: Completed translation [2023-11-12 02:25:22,300 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:25:22 WrapperNode [2023-11-12 02:25:22,301 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 02:25:22,302 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 02:25:22,302 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 02:25:22,302 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 02:25:22,310 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:25:22" (1/1) ... [2023-11-12 02:25:22,352 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:25:22" (1/1) ... [2023-11-12 02:25:22,400 INFO L138 Inliner]: procedures = 271, calls = 46, calls flagged for inlining = 5, calls inlined = 6, statements flattened = 112 [2023-11-12 02:25:22,401 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 02:25:22,402 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 02:25:22,402 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 02:25:22,402 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 02:25:22,411 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:25:22" (1/1) ... [2023-11-12 02:25:22,412 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:25:22" (1/1) ... [2023-11-12 02:25:22,427 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:25:22" (1/1) ... [2023-11-12 02:25:22,431 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:25:22" (1/1) ... [2023-11-12 02:25:22,443 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:25:22" (1/1) ... [2023-11-12 02:25:22,463 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:25:22" (1/1) ... [2023-11-12 02:25:22,476 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:25:22" (1/1) ... [2023-11-12 02:25:22,479 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:25:22" (1/1) ... [2023-11-12 02:25:22,494 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 02:25:22,495 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 02:25:22,496 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 02:25:22,496 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 02:25:22,497 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:25:22" (1/1) ... [2023-11-12 02:25:22,503 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 02:25:22,518 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b61f8f52-155b-43bb-8029-6d31276417c2/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:25:22,532 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b61f8f52-155b-43bb-8029-6d31276417c2/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-12 02:25:22,559 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b61f8f52-155b-43bb-8029-6d31276417c2/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-12 02:25:22,591 INFO L130 BoogieDeclarations]: Found specification of procedure sleep [2023-11-12 02:25:22,591 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-12 02:25:22,591 INFO L130 BoogieDeclarations]: Found specification of procedure generate [2023-11-12 02:25:22,592 INFO L138 BoogieDeclarations]: Found implementation of procedure generate [2023-11-12 02:25:22,592 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-12 02:25:22,592 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-12 02:25:22,592 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-11-12 02:25:22,593 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 02:25:22,593 INFO L130 BoogieDeclarations]: Found specification of procedure dispose [2023-11-12 02:25:22,593 INFO L138 BoogieDeclarations]: Found implementation of procedure dispose [2023-11-12 02:25:22,593 INFO L130 BoogieDeclarations]: Found specification of procedure process [2023-11-12 02:25:22,594 INFO L138 BoogieDeclarations]: Found implementation of procedure process [2023-11-12 02:25:22,594 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-12 02:25:22,596 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 02:25:22,596 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 02:25:22,598 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-12 02:25:22,875 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 02:25:22,877 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 02:25:23,122 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 02:25:23,133 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 02:25:23,135 INFO L302 CfgBuilder]: Removed 4 assume(true) statements. [2023-11-12 02:25:23,137 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:25:23 BoogieIcfgContainer [2023-11-12 02:25:23,138 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 02:25:23,141 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-12 02:25:23,141 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-12 02:25:23,144 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-12 02:25:23,144 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 02:25:21" (1/3) ... [2023-11-12 02:25:23,145 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7465740d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 02:25:23, skipping insertion in model container [2023-11-12 02:25:23,145 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:25:22" (2/3) ... [2023-11-12 02:25:23,146 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7465740d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 02:25:23, skipping insertion in model container [2023-11-12 02:25:23,146 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:25:23" (3/3) ... [2023-11-12 02:25:23,147 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_04-priv_multi_true.i [2023-11-12 02:25:23,156 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-12 02:25:23,166 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-12 02:25:23,166 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 10 error locations. [2023-11-12 02:25:23,166 INFO L521 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-12 02:25:23,282 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-12 02:25:23,319 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 179 places, 183 transitions, 378 flow [2023-11-12 02:25:23,466 INFO L124 PetriNetUnfolderBase]: 14/180 cut-off events. [2023-11-12 02:25:23,480 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-12 02:25:23,488 INFO L83 FinitePrefix]: Finished finitePrefix Result has 190 conditions, 180 events. 14/180 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 444 event pairs, 0 based on Foata normal form. 0/156 useless extension candidates. Maximal degree in co-relation 152. Up to 2 conditions per place. [2023-11-12 02:25:23,488 INFO L82 GeneralOperation]: Start removeDead. Operand has 179 places, 183 transitions, 378 flow [2023-11-12 02:25:23,496 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 176 places, 180 transitions, 369 flow [2023-11-12 02:25:23,506 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-11-12 02:25:23,529 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 176 places, 180 transitions, 369 flow [2023-11-12 02:25:23,531 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 176 places, 180 transitions, 369 flow [2023-11-12 02:25:23,532 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 176 places, 180 transitions, 369 flow [2023-11-12 02:25:23,576 INFO L124 PetriNetUnfolderBase]: 14/180 cut-off events. [2023-11-12 02:25:23,576 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-12 02:25:23,578 INFO L83 FinitePrefix]: Finished finitePrefix Result has 190 conditions, 180 events. 14/180 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 442 event pairs, 0 based on Foata normal form. 0/156 useless extension candidates. Maximal degree in co-relation 152. Up to 2 conditions per place. [2023-11-12 02:25:23,588 INFO L119 LiptonReduction]: Number of co-enabled transitions 14562 [2023-11-12 02:25:29,429 INFO L134 LiptonReduction]: Checked pairs total: 30302 [2023-11-12 02:25:29,429 INFO L136 LiptonReduction]: Total number of compositions: 167 [2023-11-12 02:25:29,455 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-12 02:25:29,464 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@47a71ef, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-12 02:25:29,465 INFO L358 AbstractCegarLoop]: Starting to check reachability of 21 error locations. [2023-11-12 02:25:29,468 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-12 02:25:29,469 INFO L124 PetriNetUnfolderBase]: 1/15 cut-off events. [2023-11-12 02:25:29,469 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-12 02:25:29,470 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:25:29,470 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:25:29,471 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting generateErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [processErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, processErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, processErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2023-11-12 02:25:29,476 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:25:29,477 INFO L85 PathProgramCache]: Analyzing trace with hash -1941844041, now seen corresponding path program 1 times [2023-11-12 02:25:29,487 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:25:29,487 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1274681843] [2023-11-12 02:25:29,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:25:29,488 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:25:29,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:25:30,011 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:25:30,012 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:25:30,012 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1274681843] [2023-11-12 02:25:30,013 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1274681843] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:25:30,013 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:25:30,014 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-12 02:25:30,015 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [108077873] [2023-11-12 02:25:30,016 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:25:30,025 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 02:25:30,030 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:25:30,053 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 02:25:30,054 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 02:25:30,073 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 164 out of 350 [2023-11-12 02:25:30,077 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 59 places, 57 transitions, 123 flow. Second operand has 3 states, 3 states have (on average 165.66666666666666) internal successors, (497), 3 states have internal predecessors, (497), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:25:30,077 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:25:30,077 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 164 of 350 [2023-11-12 02:25:30,078 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:25:34,068 INFO L124 PetriNetUnfolderBase]: 20516/29453 cut-off events. [2023-11-12 02:25:34,068 INFO L125 PetriNetUnfolderBase]: For 138/138 co-relation queries the response was YES. [2023-11-12 02:25:34,122 INFO L83 FinitePrefix]: Finished finitePrefix Result has 56671 conditions, 29453 events. 20516/29453 cut-off events. For 138/138 co-relation queries the response was YES. Maximal size of possible extension queue 989. Compared 185693 event pairs, 11676 based on Foata normal form. 0/22052 useless extension candidates. Maximal degree in co-relation 56660. Up to 20193 conditions per place. [2023-11-12 02:25:34,506 INFO L140 encePairwiseOnDemand]: 341/350 looper letters, 80 selfloop transitions, 2 changer transitions 0/89 dead transitions. [2023-11-12 02:25:34,507 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 89 transitions, 357 flow [2023-11-12 02:25:34,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 02:25:34,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-12 02:25:34,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 585 transitions. [2023-11-12 02:25:34,547 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5571428571428572 [2023-11-12 02:25:34,548 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 585 transitions. [2023-11-12 02:25:34,549 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 585 transitions. [2023-11-12 02:25:34,551 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:25:34,566 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 585 transitions. [2023-11-12 02:25:34,573 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 195.0) internal successors, (585), 3 states have internal predecessors, (585), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:25:34,582 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 350.0) internal successors, (1400), 4 states have internal predecessors, (1400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:25:34,584 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 350.0) internal successors, (1400), 4 states have internal predecessors, (1400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:25:34,602 INFO L175 Difference]: Start difference. First operand has 59 places, 57 transitions, 123 flow. Second operand 3 states and 585 transitions. [2023-11-12 02:25:34,603 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 89 transitions, 357 flow [2023-11-12 02:25:34,609 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 89 transitions, 352 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-11-12 02:25:34,613 INFO L231 Difference]: Finished difference. Result has 55 places, 52 transitions, 124 flow [2023-11-12 02:25:34,615 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=350, PETRI_DIFFERENCE_MINUEND_FLOW=108, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=51, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=49, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=124, PETRI_PLACES=55, PETRI_TRANSITIONS=52} [2023-11-12 02:25:34,620 INFO L281 CegarLoopForPetriNet]: 59 programPoint places, -4 predicate places. [2023-11-12 02:25:34,621 INFO L495 AbstractCegarLoop]: Abstraction has has 55 places, 52 transitions, 124 flow [2023-11-12 02:25:34,621 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 165.66666666666666) internal successors, (497), 3 states have internal predecessors, (497), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:25:34,622 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:25:34,622 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:25:34,622 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-12 02:25:34,623 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting processErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [processErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, processErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, processErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2023-11-12 02:25:34,623 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:25:34,623 INFO L85 PathProgramCache]: Analyzing trace with hash 161877772, now seen corresponding path program 1 times [2023-11-12 02:25:34,624 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:25:34,624 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1086516293] [2023-11-12 02:25:34,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:25:34,624 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:25:34,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:25:34,954 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:25:34,955 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:25:34,955 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1086516293] [2023-11-12 02:25:34,956 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1086516293] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:25:34,956 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:25:34,956 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-12 02:25:34,957 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1668722532] [2023-11-12 02:25:34,957 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:25:34,958 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 02:25:34,959 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:25:34,960 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 02:25:34,960 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 02:25:34,985 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 162 out of 350 [2023-11-12 02:25:34,987 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 55 places, 52 transitions, 124 flow. Second operand has 3 states, 3 states have (on average 164.33333333333334) internal successors, (493), 3 states have internal predecessors, (493), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:25:34,987 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:25:34,987 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 162 of 350 [2023-11-12 02:25:34,987 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:25:40,358 INFO L124 PetriNetUnfolderBase]: 45884/62677 cut-off events. [2023-11-12 02:25:40,359 INFO L125 PetriNetUnfolderBase]: For 6723/6723 co-relation queries the response was YES. [2023-11-12 02:25:40,625 INFO L83 FinitePrefix]: Finished finitePrefix Result has 133026 conditions, 62677 events. 45884/62677 cut-off events. For 6723/6723 co-relation queries the response was YES. Maximal size of possible extension queue 1339. Compared 366528 event pairs, 13758 based on Foata normal form. 0/49818 useless extension candidates. Maximal degree in co-relation 133016. Up to 32553 conditions per place. [2023-11-12 02:25:40,920 INFO L140 encePairwiseOnDemand]: 338/350 looper letters, 80 selfloop transitions, 8 changer transitions 0/93 dead transitions. [2023-11-12 02:25:40,920 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 93 transitions, 400 flow [2023-11-12 02:25:40,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 02:25:40,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-12 02:25:40,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 576 transitions. [2023-11-12 02:25:40,924 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5485714285714286 [2023-11-12 02:25:40,924 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 576 transitions. [2023-11-12 02:25:40,925 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 576 transitions. [2023-11-12 02:25:40,925 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:25:40,926 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 576 transitions. [2023-11-12 02:25:40,928 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 192.0) internal successors, (576), 3 states have internal predecessors, (576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:25:40,931 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 350.0) internal successors, (1400), 4 states have internal predecessors, (1400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:25:40,933 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 350.0) internal successors, (1400), 4 states have internal predecessors, (1400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:25:40,933 INFO L175 Difference]: Start difference. First operand has 55 places, 52 transitions, 124 flow. Second operand 3 states and 576 transitions. [2023-11-12 02:25:40,933 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 93 transitions, 400 flow [2023-11-12 02:25:40,936 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 93 transitions, 396 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-12 02:25:40,938 INFO L231 Difference]: Finished difference. Result has 58 places, 59 transitions, 190 flow [2023-11-12 02:25:40,939 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=350, PETRI_DIFFERENCE_MINUEND_FLOW=122, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=52, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=190, PETRI_PLACES=58, PETRI_TRANSITIONS=59} [2023-11-12 02:25:40,940 INFO L281 CegarLoopForPetriNet]: 59 programPoint places, -1 predicate places. [2023-11-12 02:25:40,940 INFO L495 AbstractCegarLoop]: Abstraction has has 58 places, 59 transitions, 190 flow [2023-11-12 02:25:40,941 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 164.33333333333334) internal successors, (493), 3 states have internal predecessors, (493), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:25:40,941 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:25:40,941 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:25:40,942 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-12 02:25:40,942 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting processErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [processErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, processErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, processErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2023-11-12 02:25:40,942 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:25:40,943 INFO L85 PathProgramCache]: Analyzing trace with hash 161877806, now seen corresponding path program 1 times [2023-11-12 02:25:40,943 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:25:40,943 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [963679767] [2023-11-12 02:25:40,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:25:40,944 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:25:40,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:25:41,104 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:25:41,105 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:25:41,105 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [963679767] [2023-11-12 02:25:41,107 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [963679767] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:25:41,107 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:25:41,108 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-12 02:25:41,108 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [561705909] [2023-11-12 02:25:41,109 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:25:41,109 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 02:25:41,109 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:25:41,110 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 02:25:41,111 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 02:25:41,135 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 162 out of 350 [2023-11-12 02:25:41,136 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 59 transitions, 190 flow. Second operand has 3 states, 3 states have (on average 164.33333333333334) internal successors, (493), 3 states have internal predecessors, (493), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:25:41,136 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:25:41,136 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 162 of 350 [2023-11-12 02:25:41,137 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:25:47,272 INFO L124 PetriNetUnfolderBase]: 54235/74748 cut-off events. [2023-11-12 02:25:47,272 INFO L125 PetriNetUnfolderBase]: For 20225/20261 co-relation queries the response was YES. [2023-11-12 02:25:47,356 INFO L83 FinitePrefix]: Finished finitePrefix Result has 175591 conditions, 74748 events. 54235/74748 cut-off events. For 20225/20261 co-relation queries the response was YES. Maximal size of possible extension queue 1513. Compared 453891 event pairs, 20644 based on Foata normal form. 1716/65848 useless extension candidates. Maximal degree in co-relation 175578. Up to 40019 conditions per place. [2023-11-12 02:25:47,694 INFO L140 encePairwiseOnDemand]: 338/350 looper letters, 79 selfloop transitions, 12 changer transitions 0/96 dead transitions. [2023-11-12 02:25:47,695 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 96 transitions, 472 flow [2023-11-12 02:25:47,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 02:25:47,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-12 02:25:47,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 574 transitions. [2023-11-12 02:25:47,698 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5466666666666666 [2023-11-12 02:25:47,698 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 574 transitions. [2023-11-12 02:25:47,698 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 574 transitions. [2023-11-12 02:25:47,699 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:25:47,699 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 574 transitions. [2023-11-12 02:25:47,701 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 191.33333333333334) internal successors, (574), 3 states have internal predecessors, (574), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:25:47,704 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 350.0) internal successors, (1400), 4 states have internal predecessors, (1400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:25:47,705 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 350.0) internal successors, (1400), 4 states have internal predecessors, (1400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:25:47,705 INFO L175 Difference]: Start difference. First operand has 58 places, 59 transitions, 190 flow. Second operand 3 states and 574 transitions. [2023-11-12 02:25:47,706 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 96 transitions, 472 flow [2023-11-12 02:25:47,741 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 96 transitions, 452 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-12 02:25:47,744 INFO L231 Difference]: Finished difference. Result has 60 places, 62 transitions, 248 flow [2023-11-12 02:25:47,744 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=350, PETRI_DIFFERENCE_MINUEND_FLOW=162, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=56, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=248, PETRI_PLACES=60, PETRI_TRANSITIONS=62} [2023-11-12 02:25:47,747 INFO L281 CegarLoopForPetriNet]: 59 programPoint places, 1 predicate places. [2023-11-12 02:25:47,750 INFO L495 AbstractCegarLoop]: Abstraction has has 60 places, 62 transitions, 248 flow [2023-11-12 02:25:47,751 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 164.33333333333334) internal successors, (493), 3 states have internal predecessors, (493), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:25:47,752 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:25:47,752 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:25:47,752 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-12 02:25:47,752 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting processErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [processErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, processErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, processErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2023-11-12 02:25:47,753 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:25:47,754 INFO L85 PathProgramCache]: Analyzing trace with hash 694542968, now seen corresponding path program 1 times [2023-11-12 02:25:47,754 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:25:47,755 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [622975606] [2023-11-12 02:25:47,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:25:47,755 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:25:47,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:25:47,913 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:25:47,913 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:25:47,914 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [622975606] [2023-11-12 02:25:47,914 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [622975606] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:25:47,914 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:25:47,914 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-12 02:25:47,914 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [955864994] [2023-11-12 02:25:47,915 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:25:47,916 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-12 02:25:47,916 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:25:47,917 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-12 02:25:47,918 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-12 02:25:47,952 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 158 out of 350 [2023-11-12 02:25:47,953 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 62 transitions, 248 flow. Second operand has 4 states, 4 states have (on average 160.5) internal successors, (642), 4 states have internal predecessors, (642), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:25:47,954 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:25:47,954 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 158 of 350 [2023-11-12 02:25:47,954 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:25:54,554 INFO L124 PetriNetUnfolderBase]: 55564/75977 cut-off events. [2023-11-12 02:25:54,554 INFO L125 PetriNetUnfolderBase]: For 39413/39601 co-relation queries the response was YES. [2023-11-12 02:25:54,649 INFO L83 FinitePrefix]: Finished finitePrefix Result has 192275 conditions, 75977 events. 55564/75977 cut-off events. For 39413/39601 co-relation queries the response was YES. Maximal size of possible extension queue 1615. Compared 450460 event pairs, 26885 based on Foata normal form. 517/65691 useless extension candidates. Maximal degree in co-relation 192260. Up to 51518 conditions per place. [2023-11-12 02:25:55,023 INFO L140 encePairwiseOnDemand]: 337/350 looper letters, 127 selfloop transitions, 9 changer transitions 0/141 dead transitions. [2023-11-12 02:25:55,023 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 141 transitions, 798 flow [2023-11-12 02:25:55,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-12 02:25:55,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-12 02:25:55,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 755 transitions. [2023-11-12 02:25:55,033 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5392857142857143 [2023-11-12 02:25:55,033 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 755 transitions. [2023-11-12 02:25:55,033 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 755 transitions. [2023-11-12 02:25:55,034 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:25:55,034 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 755 transitions. [2023-11-12 02:25:55,037 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 188.75) internal successors, (755), 4 states have internal predecessors, (755), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:25:55,040 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 350.0) internal successors, (1750), 5 states have internal predecessors, (1750), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:25:55,042 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 350.0) internal successors, (1750), 5 states have internal predecessors, (1750), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:25:55,042 INFO L175 Difference]: Start difference. First operand has 60 places, 62 transitions, 248 flow. Second operand 4 states and 755 transitions. [2023-11-12 02:25:55,042 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 141 transitions, 798 flow [2023-11-12 02:25:55,089 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 141 transitions, 750 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-12 02:25:55,092 INFO L231 Difference]: Finished difference. Result has 63 places, 69 transitions, 326 flow [2023-11-12 02:25:55,093 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=350, PETRI_DIFFERENCE_MINUEND_FLOW=224, PETRI_DIFFERENCE_MINUEND_PLACES=58, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=62, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=53, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=326, PETRI_PLACES=63, PETRI_TRANSITIONS=69} [2023-11-12 02:25:55,094 INFO L281 CegarLoopForPetriNet]: 59 programPoint places, 4 predicate places. [2023-11-12 02:25:55,095 INFO L495 AbstractCegarLoop]: Abstraction has has 63 places, 69 transitions, 326 flow [2023-11-12 02:25:55,095 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 160.5) internal successors, (642), 4 states have internal predecessors, (642), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:25:55,096 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:25:55,096 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1] [2023-11-12 02:25:55,096 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-12 02:25:55,096 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting generateErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [processErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, processErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, processErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2023-11-12 02:25:55,097 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:25:55,097 INFO L85 PathProgramCache]: Analyzing trace with hash -183772037, now seen corresponding path program 1 times [2023-11-12 02:25:55,097 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:25:55,098 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [971875985] [2023-11-12 02:25:55,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:25:55,098 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:25:55,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:25:55,187 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-12 02:25:55,188 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:25:55,188 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [971875985] [2023-11-12 02:25:55,190 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [971875985] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:25:55,191 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:25:55,191 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-12 02:25:55,191 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1762664377] [2023-11-12 02:25:55,191 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:25:55,192 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 02:25:55,192 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:25:55,192 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 02:25:55,193 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 02:25:55,209 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 163 out of 350 [2023-11-12 02:25:55,211 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 69 transitions, 326 flow. Second operand has 3 states, 3 states have (on average 165.33333333333334) internal successors, (496), 3 states have internal predecessors, (496), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:25:55,211 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:25:55,211 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 163 of 350 [2023-11-12 02:25:55,211 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:26:00,599 INFO L124 PetriNetUnfolderBase]: 42984/60597 cut-off events. [2023-11-12 02:26:00,599 INFO L125 PetriNetUnfolderBase]: For 44950/46078 co-relation queries the response was YES. [2023-11-12 02:26:00,719 INFO L83 FinitePrefix]: Finished finitePrefix Result has 162277 conditions, 60597 events. 42984/60597 cut-off events. For 44950/46078 co-relation queries the response was YES. Maximal size of possible extension queue 1461. Compared 383590 event pairs, 9919 based on Foata normal form. 141/52819 useless extension candidates. Maximal degree in co-relation 162261. Up to 34809 conditions per place. [2023-11-12 02:26:00,982 INFO L140 encePairwiseOnDemand]: 346/350 looper letters, 89 selfloop transitions, 4 changer transitions 0/110 dead transitions. [2023-11-12 02:26:00,982 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 110 transitions, 664 flow [2023-11-12 02:26:00,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 02:26:00,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-12 02:26:00,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 570 transitions. [2023-11-12 02:26:00,985 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5428571428571428 [2023-11-12 02:26:00,985 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 570 transitions. [2023-11-12 02:26:00,985 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 570 transitions. [2023-11-12 02:26:00,986 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:26:00,986 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 570 transitions. [2023-11-12 02:26:00,988 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 190.0) internal successors, (570), 3 states have internal predecessors, (570), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:26:00,990 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 350.0) internal successors, (1400), 4 states have internal predecessors, (1400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:26:00,992 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 350.0) internal successors, (1400), 4 states have internal predecessors, (1400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:26:00,992 INFO L175 Difference]: Start difference. First operand has 63 places, 69 transitions, 326 flow. Second operand 3 states and 570 transitions. [2023-11-12 02:26:00,992 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 64 places, 110 transitions, 664 flow [2023-11-12 02:26:01,037 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 110 transitions, 654 flow, removed 3 selfloop flow, removed 2 redundant places. [2023-11-12 02:26:01,041 INFO L231 Difference]: Finished difference. Result has 63 places, 69 transitions, 328 flow [2023-11-12 02:26:01,041 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=350, PETRI_DIFFERENCE_MINUEND_FLOW=312, PETRI_DIFFERENCE_MINUEND_PLACES=60, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=68, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=64, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=328, PETRI_PLACES=63, PETRI_TRANSITIONS=69} [2023-11-12 02:26:01,044 INFO L281 CegarLoopForPetriNet]: 59 programPoint places, 4 predicate places. [2023-11-12 02:26:01,044 INFO L495 AbstractCegarLoop]: Abstraction has has 63 places, 69 transitions, 328 flow [2023-11-12 02:26:01,045 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 165.33333333333334) internal successors, (496), 3 states have internal predecessors, (496), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:26:01,045 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:26:01,045 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1] [2023-11-12 02:26:01,045 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-12 02:26:01,046 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting generateErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [processErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, processErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, processErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2023-11-12 02:26:01,046 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:26:01,046 INFO L85 PathProgramCache]: Analyzing trace with hash -183772035, now seen corresponding path program 1 times [2023-11-12 02:26:01,046 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:26:01,047 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [569521615] [2023-11-12 02:26:01,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:26:01,047 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:26:01,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:26:01,134 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:26:01,135 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:26:01,135 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [569521615] [2023-11-12 02:26:01,135 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [569521615] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:26:01,135 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:26:01,136 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-12 02:26:01,136 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [821369166] [2023-11-12 02:26:01,136 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:26:01,136 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 02:26:01,137 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:26:01,138 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 02:26:01,143 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 02:26:01,154 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 164 out of 350 [2023-11-12 02:26:01,155 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 69 transitions, 328 flow. Second operand has 3 states, 3 states have (on average 166.33333333333334) internal successors, (499), 3 states have internal predecessors, (499), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:26:01,155 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:26:01,155 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 164 of 350 [2023-11-12 02:26:01,155 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:26:05,870 INFO L124 PetriNetUnfolderBase]: 37046/52639 cut-off events. [2023-11-12 02:26:05,870 INFO L125 PetriNetUnfolderBase]: For 57888/59016 co-relation queries the response was YES. [2023-11-12 02:26:05,962 INFO L83 FinitePrefix]: Finished finitePrefix Result has 149114 conditions, 52639 events. 37046/52639 cut-off events. For 57888/59016 co-relation queries the response was YES. Maximal size of possible extension queue 1259. Compared 333705 event pairs, 5242 based on Foata normal form. 1929/49276 useless extension candidates. Maximal degree in co-relation 149098. Up to 43857 conditions per place. [2023-11-12 02:26:06,174 INFO L140 encePairwiseOnDemand]: 348/350 looper letters, 90 selfloop transitions, 1 changer transitions 0/108 dead transitions. [2023-11-12 02:26:06,174 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 108 transitions, 654 flow [2023-11-12 02:26:06,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 02:26:06,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-12 02:26:06,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 571 transitions. [2023-11-12 02:26:06,177 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5438095238095239 [2023-11-12 02:26:06,178 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 571 transitions. [2023-11-12 02:26:06,178 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 571 transitions. [2023-11-12 02:26:06,181 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:26:06,181 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 571 transitions. [2023-11-12 02:26:06,183 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 190.33333333333334) internal successors, (571), 3 states have internal predecessors, (571), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:26:06,187 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 350.0) internal successors, (1400), 4 states have internal predecessors, (1400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:26:06,189 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 350.0) internal successors, (1400), 4 states have internal predecessors, (1400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:26:06,189 INFO L175 Difference]: Start difference. First operand has 63 places, 69 transitions, 328 flow. Second operand 3 states and 571 transitions. [2023-11-12 02:26:06,189 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 64 places, 108 transitions, 654 flow [2023-11-12 02:26:06,263 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 63 places, 108 transitions, 650 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-12 02:26:06,265 INFO L231 Difference]: Finished difference. Result has 63 places, 68 transitions, 322 flow [2023-11-12 02:26:06,265 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=350, PETRI_DIFFERENCE_MINUEND_FLOW=320, PETRI_DIFFERENCE_MINUEND_PLACES=61, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=68, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=67, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=322, PETRI_PLACES=63, PETRI_TRANSITIONS=68} [2023-11-12 02:26:06,268 INFO L281 CegarLoopForPetriNet]: 59 programPoint places, 4 predicate places. [2023-11-12 02:26:06,268 INFO L495 AbstractCegarLoop]: Abstraction has has 63 places, 68 transitions, 322 flow [2023-11-12 02:26:06,269 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 166.33333333333334) internal successors, (499), 3 states have internal predecessors, (499), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:26:06,269 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:26:06,269 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:26:06,269 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-12 02:26:06,269 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting processErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [processErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, processErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, processErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2023-11-12 02:26:06,270 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:26:06,270 INFO L85 PathProgramCache]: Analyzing trace with hash -751400260, now seen corresponding path program 1 times [2023-11-12 02:26:06,270 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:26:06,270 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [987624357] [2023-11-12 02:26:06,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:26:06,271 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:26:06,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:26:06,442 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:26:06,442 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:26:06,443 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [987624357] [2023-11-12 02:26:06,443 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [987624357] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:26:06,443 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:26:06,443 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-12 02:26:06,443 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1500016009] [2023-11-12 02:26:06,444 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:26:06,444 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-12 02:26:06,444 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:26:06,445 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-12 02:26:06,445 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-12 02:26:06,481 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 158 out of 350 [2023-11-12 02:26:06,482 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 68 transitions, 322 flow. Second operand has 5 states, 5 states have (on average 160.0) internal successors, (800), 5 states have internal predecessors, (800), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:26:06,483 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:26:06,483 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 158 of 350 [2023-11-12 02:26:06,483 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand