./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/weaver/parallel-ticket-8.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 9bd2c7ff 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_c78e786a-027c-4843-bcd5-972046b88333/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c78e786a-027c-4843-bcd5-972046b88333/bin/uautomizer-verify-uCwYo4JHxu/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c78e786a-027c-4843-bcd5-972046b88333/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c78e786a-027c-4843-bcd5-972046b88333/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/parallel-ticket-8.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c78e786a-027c-4843-bcd5-972046b88333/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c78e786a-027c-4843-bcd5-972046b88333/bin/uautomizer-verify-uCwYo4JHxu --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 e9184a10f76289bc351ce16b4243b6d0e46782fe8318237a8a819d2b43a92673 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 07:35:24,010 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 07:35:24,108 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c78e786a-027c-4843-bcd5-972046b88333/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-11-19 07:35:24,118 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 07:35:24,118 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 07:35:24,165 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 07:35:24,166 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 07:35:24,166 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 07:35:24,168 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 07:35:24,173 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 07:35:24,174 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 07:35:24,174 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 07:35:24,175 INFO L153 SettingsManager]: * Use SBE=true [2023-11-19 07:35:24,177 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 07:35:24,177 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 07:35:24,178 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 07:35:24,178 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 07:35:24,178 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 07:35:24,179 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 07:35:24,179 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 07:35:24,179 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 07:35:24,180 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 07:35:24,180 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-19 07:35:24,181 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 07:35:24,181 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 07:35:24,181 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 07:35:24,182 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 07:35:24,183 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 07:35:24,183 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 07:35:24,183 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 07:35:24,185 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:35:24,185 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 07:35:24,185 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 07:35:24,185 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 07:35:24,186 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-19 07:35:24,186 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 07:35:24,186 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-19 07:35:24,186 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 07:35:24,186 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-19 07:35:24,187 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 07:35:24,187 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-19 07:35:24,187 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_c78e786a-027c-4843-bcd5-972046b88333/bin/uautomizer-verify-uCwYo4JHxu/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c78e786a-027c-4843-bcd5-972046b88333/bin/uautomizer-verify-uCwYo4JHxu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e9184a10f76289bc351ce16b4243b6d0e46782fe8318237a8a819d2b43a92673 [2023-11-19 07:35:24,482 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 07:35:24,511 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 07:35:24,514 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 07:35:24,515 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 07:35:24,516 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 07:35:24,517 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c78e786a-027c-4843-bcd5-972046b88333/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/weaver/parallel-ticket-8.wvr.c [2023-11-19 07:35:27,851 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 07:35:28,147 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 07:35:28,148 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c78e786a-027c-4843-bcd5-972046b88333/sv-benchmarks/c/weaver/parallel-ticket-8.wvr.c [2023-11-19 07:35:28,158 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c78e786a-027c-4843-bcd5-972046b88333/bin/uautomizer-verify-uCwYo4JHxu/data/bbadb68c1/beeb90205dba434eafba8db50513691d/FLAG1f60f2400 [2023-11-19 07:35:28,175 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c78e786a-027c-4843-bcd5-972046b88333/bin/uautomizer-verify-uCwYo4JHxu/data/bbadb68c1/beeb90205dba434eafba8db50513691d [2023-11-19 07:35:28,178 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 07:35:28,180 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 07:35:28,182 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 07:35:28,182 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 07:35:28,188 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 07:35:28,189 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:35:28" (1/1) ... [2023-11-19 07:35:28,190 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2b50cabc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:35:28, skipping insertion in model container [2023-11-19 07:35:28,191 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:35:28" (1/1) ... [2023-11-19 07:35:28,232 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 07:35:28,444 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:35:28,457 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 07:35:28,514 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:35:28,524 WARN L675 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 07:35:28,524 WARN L675 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 07:35:28,532 INFO L206 MainTranslator]: Completed translation [2023-11-19 07:35:28,533 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:35:28 WrapperNode [2023-11-19 07:35:28,533 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 07:35:28,534 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 07:35:28,534 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 07:35:28,535 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 07:35:28,543 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:35:28" (1/1) ... [2023-11-19 07:35:28,560 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:35:28" (1/1) ... [2023-11-19 07:35:28,605 INFO L138 Inliner]: procedures = 27, calls = 131, calls flagged for inlining = 13, calls inlined = 13, statements flattened = 411 [2023-11-19 07:35:28,605 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 07:35:28,606 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 07:35:28,606 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 07:35:28,606 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 07:35:28,616 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:35:28" (1/1) ... [2023-11-19 07:35:28,617 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:35:28" (1/1) ... [2023-11-19 07:35:28,623 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:35:28" (1/1) ... [2023-11-19 07:35:28,623 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:35:28" (1/1) ... [2023-11-19 07:35:28,636 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:35:28" (1/1) ... [2023-11-19 07:35:28,639 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:35:28" (1/1) ... [2023-11-19 07:35:28,643 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:35:28" (1/1) ... [2023-11-19 07:35:28,645 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:35:28" (1/1) ... [2023-11-19 07:35:28,651 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 07:35:28,652 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 07:35:28,652 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 07:35:28,652 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 07:35:28,653 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:35:28" (1/1) ... [2023-11-19 07:35:28,659 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:35:28,675 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c78e786a-027c-4843-bcd5-972046b88333/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:35:28,689 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c78e786a-027c-4843-bcd5-972046b88333/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 07:35:28,731 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c78e786a-027c-4843-bcd5-972046b88333/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 07:35:28,754 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 07:35:28,754 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 07:35:28,754 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-19 07:35:28,754 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-19 07:35:28,754 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-11-19 07:35:28,755 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-11-19 07:35:28,755 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-11-19 07:35:28,755 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-11-19 07:35:28,755 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-11-19 07:35:28,755 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-11-19 07:35:28,755 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2023-11-19 07:35:28,756 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2023-11-19 07:35:28,756 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 07:35:28,756 INFO L130 BoogieDeclarations]: Found specification of procedure thread5 [2023-11-19 07:35:28,756 INFO L138 BoogieDeclarations]: Found implementation of procedure thread5 [2023-11-19 07:35:28,756 INFO L130 BoogieDeclarations]: Found specification of procedure thread6 [2023-11-19 07:35:28,756 INFO L138 BoogieDeclarations]: Found implementation of procedure thread6 [2023-11-19 07:35:28,757 INFO L130 BoogieDeclarations]: Found specification of procedure thread7 [2023-11-19 07:35:28,757 INFO L138 BoogieDeclarations]: Found implementation of procedure thread7 [2023-11-19 07:35:28,757 INFO L130 BoogieDeclarations]: Found specification of procedure thread8 [2023-11-19 07:35:28,757 INFO L138 BoogieDeclarations]: Found implementation of procedure thread8 [2023-11-19 07:35:28,757 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-19 07:35:28,757 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-19 07:35:28,758 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 07:35:28,758 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 07:35:28,758 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 07:35:28,760 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-19 07:35:28,919 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 07:35:28,922 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 07:35:29,540 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 07:35:29,851 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 07:35:29,852 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-19 07:35:29,865 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:35:29 BoogieIcfgContainer [2023-11-19 07:35:29,866 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 07:35:29,871 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 07:35:29,872 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 07:35:29,875 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 07:35:29,876 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:35:28" (1/3) ... [2023-11-19 07:35:29,876 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f94a6ab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:35:29, skipping insertion in model container [2023-11-19 07:35:29,877 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:35:28" (2/3) ... [2023-11-19 07:35:29,877 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f94a6ab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:35:29, skipping insertion in model container [2023-11-19 07:35:29,878 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:35:29" (3/3) ... [2023-11-19 07:35:29,879 INFO L112 eAbstractionObserver]: Analyzing ICFG parallel-ticket-8.wvr.c [2023-11-19 07:35:29,889 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-19 07:35:29,899 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 07:35:29,900 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 32 error locations. [2023-11-19 07:35:29,900 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-19 07:35:30,065 INFO L144 ThreadInstanceAdder]: Constructed 8 joinOtherThreadTransitions. [2023-11-19 07:35:30,126 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 307 places, 284 transitions, 624 flow [2023-11-19 07:35:30,275 INFO L124 PetriNetUnfolderBase]: 2/276 cut-off events. [2023-11-19 07:35:30,276 INFO L125 PetriNetUnfolderBase]: For 8/8 co-relation queries the response was YES. [2023-11-19 07:35:30,281 INFO L83 FinitePrefix]: Finished finitePrefix Result has 309 conditions, 276 events. 2/276 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 261 event pairs, 0 based on Foata normal form. 0/242 useless extension candidates. Maximal degree in co-relation 220. Up to 2 conditions per place. [2023-11-19 07:35:30,282 INFO L82 GeneralOperation]: Start removeDead. Operand has 307 places, 284 transitions, 624 flow [2023-11-19 07:35:30,292 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 266 places, 242 transitions, 529 flow [2023-11-19 07:35:30,296 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-11-19 07:35:30,308 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 266 places, 242 transitions, 529 flow [2023-11-19 07:35:30,311 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 266 places, 242 transitions, 529 flow [2023-11-19 07:35:30,312 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 266 places, 242 transitions, 529 flow [2023-11-19 07:35:30,413 INFO L124 PetriNetUnfolderBase]: 1/242 cut-off events. [2023-11-19 07:35:30,414 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2023-11-19 07:35:30,416 INFO L83 FinitePrefix]: Finished finitePrefix Result has 274 conditions, 242 events. 1/242 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 259 event pairs, 0 based on Foata normal form. 0/209 useless extension candidates. Maximal degree in co-relation 220. Up to 2 conditions per place. [2023-11-19 07:35:30,442 INFO L119 LiptonReduction]: Number of co-enabled transitions 13092 [2023-11-19 07:35:44,510 INFO L134 LiptonReduction]: Checked pairs total: 73754 [2023-11-19 07:35:44,510 INFO L136 LiptonReduction]: Total number of compositions: 167 [2023-11-19 07:35:44,527 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 07:35:44,534 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;@70dbb9b7, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-19 07:35:44,534 INFO L358 AbstractCegarLoop]: Starting to check reachability of 72 error locations. [2023-11-19 07:35:44,538 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-19 07:35:44,538 INFO L124 PetriNetUnfolderBase]: 0/3 cut-off events. [2023-11-19 07:35:44,538 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-19 07:35:44,538 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:35:44,539 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-11-19 07:35:44,540 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 69 more)] === [2023-11-19 07:35:44,545 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:35:44,545 INFO L85 PathProgramCache]: Analyzing trace with hash 1184795, now seen corresponding path program 1 times [2023-11-19 07:35:44,555 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:35:44,556 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1273692105] [2023-11-19 07:35:44,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:35:44,556 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:35:44,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:35:45,038 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:35:45,039 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:35:45,039 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1273692105] [2023-11-19 07:35:45,040 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1273692105] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:35:45,040 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:35:45,041 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-19 07:35:45,042 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1889517937] [2023-11-19 07:35:45,043 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:35:45,051 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:35:45,056 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:35:45,076 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:35:45,077 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:35:45,095 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 207 out of 451 [2023-11-19 07:35:45,102 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 121 places, 96 transitions, 237 flow. Second operand has 3 states, 3 states have (on average 208.0) internal successors, (624), 3 states have internal predecessors, (624), 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) [2023-11-19 07:35:45,103 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:35:45,103 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 207 of 451 [2023-11-19 07:35:45,104 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand