./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/weaver/parallel-parallel-sum-1.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version e7bb482b 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_8a8e677d-40b0-41e6-a3b7-87b1378edc99/bin/uautomizer-verify-WvqO1wxjHP/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a8e677d-40b0-41e6-a3b7-87b1378edc99/bin/uautomizer-verify-WvqO1wxjHP/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a8e677d-40b0-41e6-a3b7-87b1378edc99/bin/uautomizer-verify-WvqO1wxjHP/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a8e677d-40b0-41e6-a3b7-87b1378edc99/bin/uautomizer-verify-WvqO1wxjHP/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/parallel-parallel-sum-1.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a8e677d-40b0-41e6-a3b7-87b1378edc99/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a8e677d-40b0-41e6-a3b7-87b1378edc99/bin/uautomizer-verify-WvqO1wxjHP --witnessprinter.witness.filename witness.graphml --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 54b834084fe1393c06cef2b14fb31f788537bd44a8744d5b4241cffc72e1d744 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-e7bb482 [2023-11-06 22:00:39,603 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-06 22:00:39,689 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a8e677d-40b0-41e6-a3b7-87b1378edc99/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-11-06 22:00:39,695 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-06 22:00:39,696 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-06 22:00:39,727 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-06 22:00:39,728 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-06 22:00:39,729 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-06 22:00:39,729 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-06 22:00:39,730 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-06 22:00:39,731 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-06 22:00:39,732 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-06 22:00:39,732 INFO L153 SettingsManager]: * Use SBE=true [2023-11-06 22:00:39,733 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-06 22:00:39,734 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-06 22:00:39,734 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-06 22:00:39,735 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-06 22:00:39,736 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-06 22:00:39,736 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-06 22:00:39,737 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-06 22:00:39,741 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-06 22:00:39,742 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-06 22:00:39,742 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-06 22:00:39,743 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-06 22:00:39,744 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-06 22:00:39,744 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-06 22:00:39,745 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-06 22:00:39,746 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-06 22:00:39,746 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-06 22:00:39,747 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-06 22:00:39,748 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 22:00:39,748 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-06 22:00:39,749 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-06 22:00:39,750 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-11-06 22:00:39,750 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-06 22:00:39,751 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-06 22:00:39,751 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-06 22:00:39,752 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-06 22:00:39,753 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-06 22:00:39,753 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-06 22:00:39,754 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-06 22:00:39,754 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_8a8e677d-40b0-41e6-a3b7-87b1378edc99/bin/uautomizer-verify-WvqO1wxjHP/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a8e677d-40b0-41e6-a3b7-87b1378edc99/bin/uautomizer-verify-WvqO1wxjHP Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 54b834084fe1393c06cef2b14fb31f788537bd44a8744d5b4241cffc72e1d744 [2023-11-06 22:00:40,087 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-06 22:00:40,127 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-06 22:00:40,131 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-06 22:00:40,132 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-06 22:00:40,133 INFO L274 PluginConnector]: CDTParser initialized [2023-11-06 22:00:40,134 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a8e677d-40b0-41e6-a3b7-87b1378edc99/bin/uautomizer-verify-WvqO1wxjHP/../../sv-benchmarks/c/weaver/parallel-parallel-sum-1.wvr.c [2023-11-06 22:00:43,588 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-06 22:00:43,849 INFO L384 CDTParser]: Found 1 translation units. [2023-11-06 22:00:43,850 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a8e677d-40b0-41e6-a3b7-87b1378edc99/sv-benchmarks/c/weaver/parallel-parallel-sum-1.wvr.c [2023-11-06 22:00:43,860 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a8e677d-40b0-41e6-a3b7-87b1378edc99/bin/uautomizer-verify-WvqO1wxjHP/data/f51b656cc/5ac00dddf0c74cb8bf07d28b7f5ed053/FLAGb4d6ad362 [2023-11-06 22:00:43,879 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a8e677d-40b0-41e6-a3b7-87b1378edc99/bin/uautomizer-verify-WvqO1wxjHP/data/f51b656cc/5ac00dddf0c74cb8bf07d28b7f5ed053 [2023-11-06 22:00:43,885 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-06 22:00:43,889 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-06 22:00:43,893 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-06 22:00:43,895 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-06 22:00:43,901 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-06 22:00:43,905 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:00:43" (1/1) ... [2023-11-06 22:00:43,907 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@20dad4f5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:00:43, skipping insertion in model container [2023-11-06 22:00:43,907 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:00:43" (1/1) ... [2023-11-06 22:00:43,952 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 22:00:44,162 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:00:44,173 INFO L202 MainTranslator]: Completed pre-run [2023-11-06 22:00:44,211 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:00:44,222 WARN L672 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 22:00:44,222 WARN L672 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 22:00:44,231 INFO L206 MainTranslator]: Completed translation [2023-11-06 22:00:44,231 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:00:44 WrapperNode [2023-11-06 22:00:44,231 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-06 22:00:44,233 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-06 22:00:44,233 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-06 22:00:44,233 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-06 22:00:44,242 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:00:44" (1/1) ... [2023-11-06 22:00:44,254 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:00:44" (1/1) ... [2023-11-06 22:00:44,314 INFO L138 Inliner]: procedures = 27, calls = 69, calls flagged for inlining = 19, calls inlined = 25, statements flattened = 381 [2023-11-06 22:00:44,315 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-06 22:00:44,316 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-06 22:00:44,316 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-06 22:00:44,316 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-06 22:00:44,329 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:00:44" (1/1) ... [2023-11-06 22:00:44,329 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:00:44" (1/1) ... [2023-11-06 22:00:44,336 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:00:44" (1/1) ... [2023-11-06 22:00:44,336 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:00:44" (1/1) ... [2023-11-06 22:00:44,368 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:00:44" (1/1) ... [2023-11-06 22:00:44,375 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:00:44" (1/1) ... [2023-11-06 22:00:44,378 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:00:44" (1/1) ... [2023-11-06 22:00:44,381 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:00:44" (1/1) ... [2023-11-06 22:00:44,387 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-06 22:00:44,388 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-06 22:00:44,388 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-06 22:00:44,389 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-06 22:00:44,390 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:00:44" (1/1) ... [2023-11-06 22:00:44,398 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 22:00:44,413 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a8e677d-40b0-41e6-a3b7-87b1378edc99/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:00:44,427 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a8e677d-40b0-41e6-a3b7-87b1378edc99/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-06 22:00:44,468 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a8e677d-40b0-41e6-a3b7-87b1378edc99/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-06 22:00:44,492 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-06 22:00:44,492 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-06 22:00:44,493 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-06 22:00:44,493 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-06 22:00:44,493 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-11-06 22:00:44,493 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-11-06 22:00:44,494 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-11-06 22:00:44,494 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-11-06 22:00:44,494 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-11-06 22:00:44,494 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-11-06 22:00:44,495 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2023-11-06 22:00:44,495 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2023-11-06 22:00:44,495 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-06 22:00:44,495 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-06 22:00:44,496 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-06 22:00:44,496 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-06 22:00:44,496 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-06 22:00:44,496 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-06 22:00:44,497 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-06 22:00:44,499 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-06 22:00:44,643 INFO L236 CfgBuilder]: Building ICFG [2023-11-06 22:00:44,646 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-06 22:00:45,346 INFO L277 CfgBuilder]: Performing block encoding [2023-11-06 22:00:46,186 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-06 22:00:46,187 INFO L302 CfgBuilder]: Removed 5 assume(true) statements. [2023-11-06 22:00:46,190 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:00:46 BoogieIcfgContainer [2023-11-06 22:00:46,190 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-06 22:00:46,193 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-06 22:00:46,194 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-06 22:00:46,197 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-06 22:00:46,198 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 10:00:43" (1/3) ... [2023-11-06 22:00:46,199 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@191d2bf4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:00:46, skipping insertion in model container [2023-11-06 22:00:46,199 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:00:44" (2/3) ... [2023-11-06 22:00:46,200 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@191d2bf4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:00:46, skipping insertion in model container [2023-11-06 22:00:46,200 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:00:46" (3/3) ... [2023-11-06 22:00:46,202 INFO L112 eAbstractionObserver]: Analyzing ICFG parallel-parallel-sum-1.wvr.c [2023-11-06 22:00:46,213 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-06 22:00:46,226 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-06 22:00:46,227 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 36 error locations. [2023-11-06 22:00:46,227 INFO L519 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-06 22:00:46,522 INFO L144 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2023-11-06 22:00:46,592 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 257 places, 259 transitions, 546 flow [2023-11-06 22:00:46,767 INFO L124 PetriNetUnfolderBase]: 15/255 cut-off events. [2023-11-06 22:00:46,767 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2023-11-06 22:00:46,775 INFO L83 FinitePrefix]: Finished finitePrefix Result has 272 conditions, 255 events. 15/255 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 265 event pairs, 0 based on Foata normal form. 0/204 useless extension candidates. Maximal degree in co-relation 204. Up to 2 conditions per place. [2023-11-06 22:00:46,776 INFO L82 GeneralOperation]: Start removeDead. Operand has 257 places, 259 transitions, 546 flow [2023-11-06 22:00:46,785 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 228 places, 229 transitions, 479 flow [2023-11-06 22:00:46,790 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-11-06 22:00:46,803 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 228 places, 229 transitions, 479 flow [2023-11-06 22:00:46,807 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 228 places, 229 transitions, 479 flow [2023-11-06 22:00:46,807 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 228 places, 229 transitions, 479 flow [2023-11-06 22:00:46,876 INFO L124 PetriNetUnfolderBase]: 14/229 cut-off events. [2023-11-06 22:00:46,876 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-11-06 22:00:46,881 INFO L83 FinitePrefix]: Finished finitePrefix Result has 245 conditions, 229 events. 14/229 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 263 event pairs, 0 based on Foata normal form. 0/179 useless extension candidates. Maximal degree in co-relation 204. Up to 2 conditions per place. [2023-11-06 22:00:46,887 INFO L119 LiptonReduction]: Number of co-enabled transitions 6264 [2023-11-06 22:00:59,171 INFO L134 LiptonReduction]: Checked pairs total: 28426 [2023-11-06 22:00:59,171 INFO L136 LiptonReduction]: Total number of compositions: 218 [2023-11-06 22:00:59,189 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-06 22:00:59,197 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=LoopsAndPotentialCycles, 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;@4dfe71da, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-06 22:00:59,198 INFO L358 AbstractCegarLoop]: Starting to check reachability of 72 error locations. [2023-11-06 22:00:59,200 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-06 22:00:59,201 INFO L124 PetriNetUnfolderBase]: 1/2 cut-off events. [2023-11-06 22:00:59,201 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-06 22:00:59,201 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:00:59,202 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-11-06 22:00:59,203 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 69 more)] === [2023-11-06 22:00:59,209 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:00:59,209 INFO L85 PathProgramCache]: Analyzing trace with hash 1551, now seen corresponding path program 1 times [2023-11-06 22:00:59,221 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:00:59,222 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2013993851] [2023-11-06 22:00:59,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:00:59,223 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:00:59,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:00:59,346 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:00:59,348 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:00:59,348 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2013993851] [2023-11-06 22:00:59,349 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2013993851] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:00:59,350 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:00:59,350 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-11-06 22:00:59,352 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1845715651] [2023-11-06 22:00:59,353 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:00:59,364 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-06 22:00:59,374 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:00:59,405 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-06 22:00:59,406 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-06 22:00:59,415 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 200 out of 477 [2023-11-06 22:00:59,424 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 73 places, 65 transitions, 151 flow. Second operand has 2 states, 2 states have (on average 200.5) internal successors, (401), 2 states have internal predecessors, (401), 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) [2023-11-06 22:00:59,424 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:00:59,424 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 200 of 477 [2023-11-06 22:00:59,427 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:01:13,351 INFO L124 PetriNetUnfolderBase]: 55361/71763 cut-off events. [2023-11-06 22:01:13,352 INFO L125 PetriNetUnfolderBase]: For 1835/1835 co-relation queries the response was YES. [2023-11-06 22:01:13,495 INFO L83 FinitePrefix]: Finished finitePrefix Result has 145991 conditions, 71763 events. 55361/71763 cut-off events. For 1835/1835 co-relation queries the response was YES. Maximal size of possible extension queue 4036. Compared 398817 event pairs, 48480 based on Foata normal form. 0/23600 useless extension candidates. Maximal degree in co-relation 132444. Up to 71764 conditions per place. [2023-11-06 22:01:13,962 INFO L140 encePairwiseOnDemand]: 467/477 looper letters, 55 selfloop transitions, 0 changer transitions 0/55 dead transitions. [2023-11-06 22:01:13,962 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 55 transitions, 241 flow [2023-11-06 22:01:13,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-06 22:01:13,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-11-06 22:01:13,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 465 transitions. [2023-11-06 22:01:13,990 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.48742138364779874 [2023-11-06 22:01:13,991 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 465 transitions. [2023-11-06 22:01:13,992 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 465 transitions. [2023-11-06 22:01:13,997 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:01:14,000 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 465 transitions. [2023-11-06 22:01:14,008 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 232.5) internal successors, (465), 2 states have internal predecessors, (465), 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) [2023-11-06 22:01:14,018 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 477.0) internal successors, (1431), 3 states have internal predecessors, (1431), 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) [2023-11-06 22:01:14,019 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 477.0) internal successors, (1431), 3 states have internal predecessors, (1431), 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) [2023-11-06 22:01:14,021 INFO L175 Difference]: Start difference. First operand has 73 places, 65 transitions, 151 flow. Second operand 2 states and 465 transitions. [2023-11-06 22:01:14,023 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 64 places, 55 transitions, 241 flow [2023-11-06 22:01:14,991 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 55 transitions, 228 flow, removed 0 selfloop flow, removed 7 redundant places. [2023-11-06 22:01:14,993 INFO L231 Difference]: Finished difference. Result has 57 places, 55 transitions, 118 flow [2023-11-06 22:01:14,996 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=477, PETRI_DIFFERENCE_MINUEND_FLOW=118, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=55, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=55, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=118, PETRI_PLACES=57, PETRI_TRANSITIONS=55} [2023-11-06 22:01:15,000 INFO L281 CegarLoopForPetriNet]: 73 programPoint places, -16 predicate places. [2023-11-06 22:01:15,000 INFO L495 AbstractCegarLoop]: Abstraction has has 57 places, 55 transitions, 118 flow [2023-11-06 22:01:15,001 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 200.5) internal successors, (401), 2 states have internal predecessors, (401), 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) [2023-11-06 22:01:15,001 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:01:15,002 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1] [2023-11-06 22:01:15,002 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-06 22:01:15,002 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 69 more)] === [2023-11-06 22:01:15,003 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:01:15,003 INFO L85 PathProgramCache]: Analyzing trace with hash 49526, now seen corresponding path program 1 times [2023-11-06 22:01:15,004 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:01:15,004 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [224498644] [2023-11-06 22:01:15,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:01:15,005 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:01:15,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:01:15,224 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:01:15,224 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:01:15,225 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [224498644] [2023-11-06 22:01:15,226 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [224498644] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:01:15,226 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:01:15,226 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-06 22:01:15,227 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [765201073] [2023-11-06 22:01:15,227 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:01:15,229 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:01:15,229 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:01:15,230 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:01:15,232 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:01:15,254 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 195 out of 477 [2023-11-06 22:01:15,256 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 55 transitions, 118 flow. Second operand has 3 states, 3 states have (on average 195.66666666666666) internal successors, (587), 3 states have internal predecessors, (587), 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) [2023-11-06 22:01:15,256 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:01:15,256 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 195 of 477 [2023-11-06 22:01:15,257 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:01:26,664 INFO L124 PetriNetUnfolderBase]: 55361/71762 cut-off events. [2023-11-06 22:01:26,664 INFO L125 PetriNetUnfolderBase]: For 324/324 co-relation queries the response was YES. [2023-11-06 22:01:26,753 INFO L83 FinitePrefix]: Finished finitePrefix Result has 145076 conditions, 71762 events. 55361/71762 cut-off events. For 324/324 co-relation queries the response was YES. Maximal size of possible extension queue 4036. Compared 398815 event pairs, 48480 based on Foata normal form. 0/23600 useless extension candidates. Maximal degree in co-relation 145073. Up to 71760 conditions per place. [2023-11-06 22:01:27,098 INFO L140 encePairwiseOnDemand]: 474/477 looper letters, 52 selfloop transitions, 2 changer transitions 0/54 dead transitions. [2023-11-06 22:01:27,098 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 54 transitions, 224 flow [2023-11-06 22:01:27,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:01:27,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-06 22:01:27,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 640 transitions. [2023-11-06 22:01:27,105 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4472396925227114 [2023-11-06 22:01:27,108 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 640 transitions. [2023-11-06 22:01:27,109 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 640 transitions. [2023-11-06 22:01:27,110 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:01:27,110 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 640 transitions. [2023-11-06 22:01:27,117 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 213.33333333333334) internal successors, (640), 3 states have internal predecessors, (640), 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) [2023-11-06 22:01:27,125 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 477.0) internal successors, (1908), 4 states have internal predecessors, (1908), 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) [2023-11-06 22:01:27,129 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 477.0) internal successors, (1908), 4 states have internal predecessors, (1908), 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) [2023-11-06 22:01:27,129 INFO L175 Difference]: Start difference. First operand has 57 places, 55 transitions, 118 flow. Second operand 3 states and 640 transitions. [2023-11-06 22:01:27,129 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 54 transitions, 224 flow [2023-11-06 22:01:27,138 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 54 transitions, 224 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-06 22:01:27,142 INFO L231 Difference]: Finished difference. Result has 58 places, 54 transitions, 120 flow [2023-11-06 22:01:27,143 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=477, PETRI_DIFFERENCE_MINUEND_FLOW=116, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=54, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=52, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=120, PETRI_PLACES=58, PETRI_TRANSITIONS=54} [2023-11-06 22:01:27,144 INFO L281 CegarLoopForPetriNet]: 73 programPoint places, -15 predicate places. [2023-11-06 22:01:27,144 INFO L495 AbstractCegarLoop]: Abstraction has has 58 places, 54 transitions, 120 flow [2023-11-06 22:01:27,145 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 195.66666666666666) internal successors, (587), 3 states have internal predecessors, (587), 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) [2023-11-06 22:01:27,145 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:01:27,146 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1] [2023-11-06 22:01:27,146 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-06 22:01:27,146 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 69 more)] === [2023-11-06 22:01:27,151 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:01:27,152 INFO L85 PathProgramCache]: Analyzing trace with hash 49542, now seen corresponding path program 1 times [2023-11-06 22:01:27,152 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:01:27,153 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1554012535] [2023-11-06 22:01:27,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:01:27,153 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:01:27,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:01:27,320 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:01:27,320 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:01:27,320 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1554012535] [2023-11-06 22:01:27,321 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1554012535] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:01:27,321 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:01:27,321 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-06 22:01:27,321 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [821754376] [2023-11-06 22:01:27,322 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:01:27,322 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:01:27,322 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:01:27,323 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:01:27,323 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:01:27,340 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 195 out of 477 [2023-11-06 22:01:27,341 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 54 transitions, 120 flow. Second operand has 3 states, 3 states have (on average 195.66666666666666) internal successors, (587), 3 states have internal predecessors, (587), 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) [2023-11-06 22:01:27,341 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:01:27,342 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 195 of 477 [2023-11-06 22:01:27,342 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand