./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/weaver/popl20-more-mts.wvr.c --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_cf747877-8fb2-435e-b111-3c9fc7cd2dfb/bin/uautomizer-verify-uTZkv6EMXl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf747877-8fb2-435e-b111-3c9fc7cd2dfb/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_cf747877-8fb2-435e-b111-3c9fc7cd2dfb/bin/uautomizer-verify-uTZkv6EMXl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf747877-8fb2-435e-b111-3c9fc7cd2dfb/bin/uautomizer-verify-uTZkv6EMXl/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/popl20-more-mts.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf747877-8fb2-435e-b111-3c9fc7cd2dfb/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_cf747877-8fb2-435e-b111-3c9fc7cd2dfb/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 cc67bee348fb2ffff05c0616660a93fb872177c05d08813d910a29641aea282e --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 02:07:25,452 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 02:07:25,530 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf747877-8fb2-435e-b111-3c9fc7cd2dfb/bin/uautomizer-verify-uTZkv6EMXl/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-11-12 02:07:25,536 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 02:07:25,537 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 02:07:25,567 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 02:07:25,567 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 02:07:25,568 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 02:07:25,569 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 02:07:25,570 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 02:07:25,571 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-12 02:07:25,571 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-12 02:07:25,572 INFO L153 SettingsManager]: * Use SBE=true [2023-11-12 02:07:25,573 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 02:07:25,574 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-12 02:07:25,574 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-12 02:07:25,575 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-12 02:07:25,576 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-12 02:07:25,576 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 02:07:25,577 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-12 02:07:25,578 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 02:07:25,578 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-12 02:07:25,579 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-12 02:07:25,580 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-12 02:07:25,580 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-12 02:07:25,581 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-12 02:07:25,581 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 02:07:25,582 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 02:07:25,583 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-12 02:07:25,583 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 02:07:25,584 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 02:07:25,585 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 02:07:25,585 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 02:07:25,586 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-12 02:07:25,586 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-12 02:07:25,587 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-12 02:07:25,588 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-12 02:07:25,588 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-12 02:07:25,589 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-12 02:07:25,589 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 02:07:25,590 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-12 02:07:25,591 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_cf747877-8fb2-435e-b111-3c9fc7cd2dfb/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf747877-8fb2-435e-b111-3c9fc7cd2dfb/bin/uautomizer-verify-uTZkv6EMXl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cc67bee348fb2ffff05c0616660a93fb872177c05d08813d910a29641aea282e [2023-11-12 02:07:25,863 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 02:07:25,893 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 02:07:25,896 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 02:07:25,897 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 02:07:25,903 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 02:07:25,906 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf747877-8fb2-435e-b111-3c9fc7cd2dfb/bin/uautomizer-verify-uTZkv6EMXl/../../sv-benchmarks/c/weaver/popl20-more-mts.wvr.c [2023-11-12 02:07:29,082 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 02:07:29,312 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 02:07:29,314 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf747877-8fb2-435e-b111-3c9fc7cd2dfb/sv-benchmarks/c/weaver/popl20-more-mts.wvr.c [2023-11-12 02:07:29,326 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf747877-8fb2-435e-b111-3c9fc7cd2dfb/bin/uautomizer-verify-uTZkv6EMXl/data/206f12a19/559a3cc9e35d4006a36e00566abc441f/FLAGf5121317e [2023-11-12 02:07:29,344 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf747877-8fb2-435e-b111-3c9fc7cd2dfb/bin/uautomizer-verify-uTZkv6EMXl/data/206f12a19/559a3cc9e35d4006a36e00566abc441f [2023-11-12 02:07:29,346 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 02:07:29,348 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 02:07:29,350 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 02:07:29,350 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 02:07:29,356 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 02:07:29,356 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:07:29" (1/1) ... [2023-11-12 02:07:29,358 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@70be1ced and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:07:29, skipping insertion in model container [2023-11-12 02:07:29,358 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:07:29" (1/1) ... [2023-11-12 02:07:29,391 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 02:07:29,626 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:07:29,647 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 02:07:29,697 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:07:29,706 WARN L672 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 02:07:29,706 WARN L672 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 02:07:29,713 INFO L206 MainTranslator]: Completed translation [2023-11-12 02:07:29,713 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:07:29 WrapperNode [2023-11-12 02:07:29,713 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 02:07:29,714 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 02:07:29,715 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 02:07:29,715 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 02:07:29,721 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:07:29" (1/1) ... [2023-11-12 02:07:29,732 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:07:29" (1/1) ... [2023-11-12 02:07:29,781 INFO L138 Inliner]: procedures = 25, calls = 47, calls flagged for inlining = 14, calls inlined = 20, statements flattened = 314 [2023-11-12 02:07:29,781 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 02:07:29,782 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 02:07:29,782 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 02:07:29,782 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 02:07:29,793 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:07:29" (1/1) ... [2023-11-12 02:07:29,793 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:07:29" (1/1) ... [2023-11-12 02:07:29,799 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:07:29" (1/1) ... [2023-11-12 02:07:29,803 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:07:29" (1/1) ... [2023-11-12 02:07:29,819 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:07:29" (1/1) ... [2023-11-12 02:07:29,841 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:07:29" (1/1) ... [2023-11-12 02:07:29,844 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:07:29" (1/1) ... [2023-11-12 02:07:29,846 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:07:29" (1/1) ... [2023-11-12 02:07:29,864 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 02:07:29,865 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 02:07:29,865 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 02:07:29,866 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 02:07:29,867 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:07:29" (1/1) ... [2023-11-12 02:07:29,872 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 02:07:29,889 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf747877-8fb2-435e-b111-3c9fc7cd2dfb/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:07:29,910 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf747877-8fb2-435e-b111-3c9fc7cd2dfb/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-12 02:07:29,927 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf747877-8fb2-435e-b111-3c9fc7cd2dfb/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-12 02:07:29,953 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 02:07:29,953 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-12 02:07:29,953 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-12 02:07:29,953 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-12 02:07:29,953 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-11-12 02:07:29,953 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-11-12 02:07:29,953 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-11-12 02:07:29,954 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-11-12 02:07:29,954 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-11-12 02:07:29,954 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-11-12 02:07:29,954 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-12 02:07:29,954 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-12 02:07:29,954 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-12 02:07:29,954 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-12 02:07:29,955 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 02:07:29,955 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 02:07:29,955 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-12 02:07:29,957 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 02:07:30,099 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 02:07:30,101 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 02:07:30,827 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 02:07:31,747 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 02:07:31,748 INFO L302 CfgBuilder]: Removed 4 assume(true) statements. [2023-11-12 02:07:31,751 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:07:31 BoogieIcfgContainer [2023-11-12 02:07:31,751 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 02:07:31,754 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-12 02:07:31,754 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-12 02:07:31,758 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-12 02:07:31,758 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 02:07:29" (1/3) ... [2023-11-12 02:07:31,759 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f43334a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 02:07:31, skipping insertion in model container [2023-11-12 02:07:31,759 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:07:29" (2/3) ... [2023-11-12 02:07:31,760 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f43334a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 02:07:31, skipping insertion in model container [2023-11-12 02:07:31,760 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:07:31" (3/3) ... [2023-11-12 02:07:31,762 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-more-mts.wvr.c [2023-11-12 02:07:31,772 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-12 02:07:31,784 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-12 02:07:31,785 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 42 error locations. [2023-11-12 02:07:31,785 INFO L521 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-12 02:07:32,165 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2023-11-12 02:07:32,233 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 317 places, 330 transitions, 681 flow [2023-11-12 02:07:32,472 INFO L124 PetriNetUnfolderBase]: 23/327 cut-off events. [2023-11-12 02:07:32,472 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-11-12 02:07:32,483 INFO L83 FinitePrefix]: Finished finitePrefix Result has 340 conditions, 327 events. 23/327 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 801 event pairs, 0 based on Foata normal form. 0/262 useless extension candidates. Maximal degree in co-relation 254. Up to 2 conditions per place. [2023-11-12 02:07:32,484 INFO L82 GeneralOperation]: Start removeDead. Operand has 317 places, 330 transitions, 681 flow [2023-11-12 02:07:32,502 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 289 places, 300 transitions, 618 flow [2023-11-12 02:07:32,505 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-11-12 02:07:32,526 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 289 places, 300 transitions, 618 flow [2023-11-12 02:07:32,531 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 289 places, 300 transitions, 618 flow [2023-11-12 02:07:32,531 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 289 places, 300 transitions, 618 flow [2023-11-12 02:07:32,699 INFO L124 PetriNetUnfolderBase]: 21/300 cut-off events. [2023-11-12 02:07:32,699 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-11-12 02:07:32,705 INFO L83 FinitePrefix]: Finished finitePrefix Result has 313 conditions, 300 events. 21/300 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 758 event pairs, 0 based on Foata normal form. 0/238 useless extension candidates. Maximal degree in co-relation 254. Up to 2 conditions per place. [2023-11-12 02:07:32,723 INFO L119 LiptonReduction]: Number of co-enabled transitions 26280 [2023-11-12 02:08:11,517 INFO L134 LiptonReduction]: Checked pairs total: 31180 [2023-11-12 02:08:11,517 INFO L136 LiptonReduction]: Total number of compositions: 373 [2023-11-12 02:08:11,534 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-12 02:08:11,541 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;@5ba3dea8, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-12 02:08:11,542 INFO L358 AbstractCegarLoop]: Starting to check reachability of 81 error locations. [2023-11-12 02:08:11,544 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-12 02:08:11,544 INFO L124 PetriNetUnfolderBase]: 1/2 cut-off events. [2023-11-12 02:08:11,545 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-12 02:08:11,545 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:08:11,546 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1] [2023-11-12 02:08:11,546 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 78 more)] === [2023-11-12 02:08:11,552 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:08:11,552 INFO L85 PathProgramCache]: Analyzing trace with hash 53500, now seen corresponding path program 1 times [2023-11-12 02:08:11,562 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:08:11,563 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [191994678] [2023-11-12 02:08:11,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:08:11,564 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:08:11,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:08:11,961 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 02:08:11,962 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:08:11,962 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [191994678] [2023-11-12 02:08:11,963 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [191994678] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:08:11,963 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:08:11,964 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-12 02:08:11,966 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [950214734] [2023-11-12 02:08:11,967 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:08:11,976 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 02:08:11,983 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:08:12,015 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 02:08:12,016 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 02:08:12,048 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 291 out of 703 [2023-11-12 02:08:12,055 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 74 places, 69 transitions, 156 flow. Second operand has 3 states, 3 states have (on average 291.6666666666667) internal successors, (875), 3 states have internal predecessors, (875), 0 states have call successors, (0), 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 02:08:12,056 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:08:12,056 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 291 of 703 [2023-11-12 02:08:12,057 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:08:15,986 INFO L124 PetriNetUnfolderBase]: 9383/13193 cut-off events. [2023-11-12 02:08:15,986 INFO L125 PetriNetUnfolderBase]: For 514/514 co-relation queries the response was YES. [2023-11-12 02:08:16,006 INFO L83 FinitePrefix]: Finished finitePrefix Result has 26813 conditions, 13193 events. 9383/13193 cut-off events. For 514/514 co-relation queries the response was YES. Maximal size of possible extension queue 1078. Compared 73484 event pairs, 8157 based on Foata normal form. 0/4962 useless extension candidates. Maximal degree in co-relation 24924. Up to 13157 conditions per place. [2023-11-12 02:08:16,101 INFO L140 encePairwiseOnDemand]: 684/703 looper letters, 53 selfloop transitions, 3 changer transitions 0/57 dead transitions. [2023-11-12 02:08:16,101 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 57 transitions, 244 flow [2023-11-12 02:08:16,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 02:08:16,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-12 02:08:16,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 945 transitions. [2023-11-12 02:08:16,122 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4480796586059744 [2023-11-12 02:08:16,123 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 945 transitions. [2023-11-12 02:08:16,123 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 945 transitions. [2023-11-12 02:08:16,127 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:08:16,130 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 945 transitions. [2023-11-12 02:08:16,136 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 315.0) internal successors, (945), 3 states have internal predecessors, (945), 0 states have call successors, (0), 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 02:08:16,147 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 703.0) internal successors, (2812), 4 states have internal predecessors, (2812), 0 states have call successors, (0), 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 02:08:16,149 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 703.0) internal successors, (2812), 4 states have internal predecessors, (2812), 0 states have call successors, (0), 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 02:08:16,151 INFO L175 Difference]: Start difference. First operand has 74 places, 69 transitions, 156 flow. Second operand 3 states and 945 transitions. [2023-11-12 02:08:16,153 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 57 transitions, 244 flow [2023-11-12 02:08:16,184 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 57 transitions, 232 flow, removed 0 selfloop flow, removed 6 redundant places. [2023-11-12 02:08:16,186 INFO L231 Difference]: Finished difference. Result has 57 places, 57 transitions, 137 flow [2023-11-12 02:08:16,189 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=703, PETRI_DIFFERENCE_MINUEND_FLOW=116, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=55, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=52, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=137, PETRI_PLACES=57, PETRI_TRANSITIONS=57} [2023-11-12 02:08:16,192 INFO L281 CegarLoopForPetriNet]: 74 programPoint places, -17 predicate places. [2023-11-12 02:08:16,192 INFO L495 AbstractCegarLoop]: Abstraction has has 57 places, 57 transitions, 137 flow [2023-11-12 02:08:16,193 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 291.6666666666667) internal successors, (875), 3 states have internal predecessors, (875), 0 states have call successors, (0), 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 02:08:16,194 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:08:16,194 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-11-12 02:08:16,194 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-12 02:08:16,194 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 78 more)] === [2023-11-12 02:08:16,195 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:08:16,195 INFO L85 PathProgramCache]: Analyzing trace with hash 1661997, now seen corresponding path program 1 times [2023-11-12 02:08:16,195 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:08:16,196 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1848634361] [2023-11-12 02:08:16,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:08:16,196 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:08:16,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:08:16,277 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:08:16,277 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:08:16,277 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1848634361] [2023-11-12 02:08:16,278 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1848634361] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:08:16,278 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:08:16,278 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-12 02:08:16,278 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1532523236] [2023-11-12 02:08:16,278 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:08:16,279 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 02:08:16,280 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:08:16,280 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 02:08:16,281 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 02:08:16,299 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 291 out of 703 [2023-11-12 02:08:16,301 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 57 transitions, 137 flow. Second operand has 3 states, 3 states have (on average 292.0) internal successors, (876), 3 states have internal predecessors, (876), 0 states have call successors, (0), 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 02:08:16,301 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:08:16,301 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 291 of 703 [2023-11-12 02:08:16,301 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:08:20,166 INFO L124 PetriNetUnfolderBase]: 9383/13192 cut-off events. [2023-11-12 02:08:20,166 INFO L125 PetriNetUnfolderBase]: For 114/114 co-relation queries the response was YES. [2023-11-12 02:08:20,181 INFO L83 FinitePrefix]: Finished finitePrefix Result has 26517 conditions, 13192 events. 9383/13192 cut-off events. For 114/114 co-relation queries the response was YES. Maximal size of possible extension queue 1078. Compared 73525 event pairs, 8157 based on Foata normal form. 0/4962 useless extension candidates. Maximal degree in co-relation 26493. Up to 13153 conditions per place. [2023-11-12 02:08:20,255 INFO L140 encePairwiseOnDemand]: 700/703 looper letters, 52 selfloop transitions, 3 changer transitions 0/56 dead transitions. [2023-11-12 02:08:20,255 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 56 transitions, 243 flow [2023-11-12 02:08:20,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 02:08:20,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-12 02:08:20,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 927 transitions. [2023-11-12 02:08:20,261 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4395448079658606 [2023-11-12 02:08:20,261 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 927 transitions. [2023-11-12 02:08:20,262 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 927 transitions. [2023-11-12 02:08:20,263 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:08:20,263 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 927 transitions. [2023-11-12 02:08:20,337 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 309.0) internal successors, (927), 3 states have internal predecessors, (927), 0 states have call successors, (0), 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 02:08:20,344 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 703.0) internal successors, (2812), 4 states have internal predecessors, (2812), 0 states have call successors, (0), 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 02:08:20,346 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 703.0) internal successors, (2812), 4 states have internal predecessors, (2812), 0 states have call successors, (0), 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 02:08:20,347 INFO L175 Difference]: Start difference. First operand has 57 places, 57 transitions, 137 flow. Second operand 3 states and 927 transitions. [2023-11-12 02:08:20,347 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 56 transitions, 243 flow [2023-11-12 02:08:20,348 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 56 transitions, 238 flow, removed 1 selfloop flow, removed 1 redundant places. [2023-11-12 02:08:20,350 INFO L231 Difference]: Finished difference. Result has 57 places, 56 transitions, 134 flow [2023-11-12 02:08:20,358 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=703, PETRI_DIFFERENCE_MINUEND_FLOW=128, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=56, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=53, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=134, PETRI_PLACES=57, PETRI_TRANSITIONS=56} [2023-11-12 02:08:20,361 INFO L281 CegarLoopForPetriNet]: 74 programPoint places, -17 predicate places. [2023-11-12 02:08:20,361 INFO L495 AbstractCegarLoop]: Abstraction has has 57 places, 56 transitions, 134 flow [2023-11-12 02:08:20,362 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 292.0) internal successors, (876), 3 states have internal predecessors, (876), 0 states have call successors, (0), 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 02:08:20,363 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:08:20,363 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-11-12 02:08:20,363 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-12 02:08:20,364 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 78 more)] === [2023-11-12 02:08:20,364 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:08:20,371 INFO L85 PathProgramCache]: Analyzing trace with hash 1662017, now seen corresponding path program 1 times [2023-11-12 02:08:20,372 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:08:20,372 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [166181649] [2023-11-12 02:08:20,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:08:20,373 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms