./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/weaver/parallel-ticket-6.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_88164850-e828-46bb-ac9a-207b4d2f1a0a/bin/uautomizer-verify-uTZkv6EMXl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88164850-e828-46bb-ac9a-207b4d2f1a0a/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_88164850-e828-46bb-ac9a-207b4d2f1a0a/bin/uautomizer-verify-uTZkv6EMXl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88164850-e828-46bb-ac9a-207b4d2f1a0a/bin/uautomizer-verify-uTZkv6EMXl/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/parallel-ticket-6.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88164850-e828-46bb-ac9a-207b4d2f1a0a/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_88164850-e828-46bb-ac9a-207b4d2f1a0a/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 0cfb19cf4d2e91498cc6b9015bdada7a33dfe09887340d8a9d79513b784b8b5a --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 02:25:38,341 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 02:25:38,473 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88164850-e828-46bb-ac9a-207b4d2f1a0a/bin/uautomizer-verify-uTZkv6EMXl/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-11-12 02:25:38,482 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 02:25:38,483 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 02:25:38,524 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 02:25:38,525 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 02:25:38,526 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 02:25:38,527 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 02:25:38,532 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 02:25:38,534 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-12 02:25:38,534 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-12 02:25:38,535 INFO L153 SettingsManager]: * Use SBE=true [2023-11-12 02:25:38,537 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 02:25:38,537 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-12 02:25:38,538 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-12 02:25:38,538 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-12 02:25:38,539 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-12 02:25:38,539 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 02:25:38,539 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-12 02:25:38,540 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 02:25:38,541 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-12 02:25:38,541 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-12 02:25:38,541 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-12 02:25:38,542 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-12 02:25:38,542 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-12 02:25:38,543 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 02:25:38,544 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 02:25:38,544 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-12 02:25:38,544 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 02:25:38,546 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 02:25:38,546 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 02:25:38,546 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 02:25:38,547 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-12 02:25:38,547 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-12 02:25:38,547 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-12 02:25:38,547 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-12 02:25:38,548 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-12 02:25:38,548 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-12 02:25:38,548 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 02:25:38,548 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-12 02:25:38,549 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_88164850-e828-46bb-ac9a-207b4d2f1a0a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88164850-e828-46bb-ac9a-207b4d2f1a0a/bin/uautomizer-verify-uTZkv6EMXl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0cfb19cf4d2e91498cc6b9015bdada7a33dfe09887340d8a9d79513b784b8b5a [2023-11-12 02:25:38,882 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 02:25:38,912 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 02:25:38,915 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 02:25:38,916 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 02:25:38,917 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 02:25:38,918 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88164850-e828-46bb-ac9a-207b4d2f1a0a/bin/uautomizer-verify-uTZkv6EMXl/../../sv-benchmarks/c/weaver/parallel-ticket-6.wvr.c [2023-11-12 02:25:42,074 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 02:25:42,296 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 02:25:42,296 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88164850-e828-46bb-ac9a-207b4d2f1a0a/sv-benchmarks/c/weaver/parallel-ticket-6.wvr.c [2023-11-12 02:25:42,309 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88164850-e828-46bb-ac9a-207b4d2f1a0a/bin/uautomizer-verify-uTZkv6EMXl/data/6b6704015/5c7e4aac1e67444ebe4d2feee027e786/FLAGba7cd426b [2023-11-12 02:25:42,330 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88164850-e828-46bb-ac9a-207b4d2f1a0a/bin/uautomizer-verify-uTZkv6EMXl/data/6b6704015/5c7e4aac1e67444ebe4d2feee027e786 [2023-11-12 02:25:42,336 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 02:25:42,339 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 02:25:42,343 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 02:25:42,343 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 02:25:42,348 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 02:25:42,349 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:25:42" (1/1) ... [2023-11-12 02:25:42,350 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@35f97243 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:25:42, skipping insertion in model container [2023-11-12 02:25:42,351 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:25:42" (1/1) ... [2023-11-12 02:25:42,381 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 02:25:42,571 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:25:42,583 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 02:25:42,622 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:25:42,636 WARN L672 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 02:25:42,636 WARN L672 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 02:25:42,645 INFO L206 MainTranslator]: Completed translation [2023-11-12 02:25:42,647 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:25:42 WrapperNode [2023-11-12 02:25:42,647 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 02:25:42,648 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 02:25:42,648 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 02:25:42,648 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 02:25:42,656 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:25:42" (1/1) ... [2023-11-12 02:25:42,666 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:25:42" (1/1) ... [2023-11-12 02:25:42,707 INFO L138 Inliner]: procedures = 25, calls = 101, calls flagged for inlining = 11, calls inlined = 11, statements flattened = 319 [2023-11-12 02:25:42,708 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 02:25:42,708 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 02:25:42,709 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 02:25:42,709 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 02:25:42,718 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:25:42" (1/1) ... [2023-11-12 02:25:42,719 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:25:42" (1/1) ... [2023-11-12 02:25:42,726 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:25:42" (1/1) ... [2023-11-12 02:25:42,726 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:25:42" (1/1) ... [2023-11-12 02:25:42,736 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:25:42" (1/1) ... [2023-11-12 02:25:42,739 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:25:42" (1/1) ... [2023-11-12 02:25:42,742 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:25:42" (1/1) ... [2023-11-12 02:25:42,744 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:25:42" (1/1) ... [2023-11-12 02:25:42,749 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 02:25:42,750 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 02:25:42,750 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 02:25:42,750 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 02:25:42,751 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:25:42" (1/1) ... [2023-11-12 02:25:42,758 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 02:25:42,774 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88164850-e828-46bb-ac9a-207b4d2f1a0a/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:25:42,808 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88164850-e828-46bb-ac9a-207b4d2f1a0a/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-12 02:25:42,811 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88164850-e828-46bb-ac9a-207b4d2f1a0a/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-12 02:25:42,845 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 02:25:42,846 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-12 02:25:42,846 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-12 02:25:42,846 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-12 02:25:42,846 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-11-12 02:25:42,846 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-11-12 02:25:42,847 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-11-12 02:25:42,847 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-11-12 02:25:42,847 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-11-12 02:25:42,847 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-11-12 02:25:42,847 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2023-11-12 02:25:42,847 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2023-11-12 02:25:42,848 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-12 02:25:42,848 INFO L130 BoogieDeclarations]: Found specification of procedure thread5 [2023-11-12 02:25:42,848 INFO L138 BoogieDeclarations]: Found implementation of procedure thread5 [2023-11-12 02:25:42,848 INFO L130 BoogieDeclarations]: Found specification of procedure thread6 [2023-11-12 02:25:42,848 INFO L138 BoogieDeclarations]: Found implementation of procedure thread6 [2023-11-12 02:25:42,848 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-12 02:25:42,849 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-12 02:25:42,849 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 02:25:42,849 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 02:25:42,849 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-12 02:25:42,850 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-12 02:25:42,979 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 02:25:42,981 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 02:25:43,498 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 02:25:43,795 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 02:25:43,795 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-12 02:25:43,801 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:25:43 BoogieIcfgContainer [2023-11-12 02:25:43,801 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 02:25:43,805 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-12 02:25:43,806 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-12 02:25:43,812 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-12 02:25:43,812 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 02:25:42" (1/3) ... [2023-11-12 02:25:43,813 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@163f75de and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 02:25:43, skipping insertion in model container [2023-11-12 02:25:43,813 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:25:42" (2/3) ... [2023-11-12 02:25:43,814 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@163f75de and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 02:25:43, skipping insertion in model container [2023-11-12 02:25:43,814 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:25:43" (3/3) ... [2023-11-12 02:25:43,815 INFO L112 eAbstractionObserver]: Analyzing ICFG parallel-ticket-6.wvr.c [2023-11-12 02:25:43,826 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-12 02:25:43,848 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-12 02:25:43,849 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 24 error locations. [2023-11-12 02:25:43,849 INFO L521 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-12 02:25:43,971 INFO L144 ThreadInstanceAdder]: Constructed 6 joinOtherThreadTransitions. [2023-11-12 02:25:44,019 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 243 places, 226 transitions, 494 flow [2023-11-12 02:25:44,138 INFO L124 PetriNetUnfolderBase]: 2/220 cut-off events. [2023-11-12 02:25:44,138 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2023-11-12 02:25:44,144 INFO L83 FinitePrefix]: Finished finitePrefix Result has 245 conditions, 220 events. 2/220 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 181 event pairs, 0 based on Foata normal form. 0/194 useless extension candidates. Maximal degree in co-relation 170. Up to 2 conditions per place. [2023-11-12 02:25:44,144 INFO L82 GeneralOperation]: Start removeDead. Operand has 243 places, 226 transitions, 494 flow [2023-11-12 02:25:44,151 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 208 places, 190 transitions, 413 flow [2023-11-12 02:25:44,156 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-11-12 02:25:44,167 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 208 places, 190 transitions, 413 flow [2023-11-12 02:25:44,170 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 208 places, 190 transitions, 413 flow [2023-11-12 02:25:44,170 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 208 places, 190 transitions, 413 flow [2023-11-12 02:25:44,225 INFO L124 PetriNetUnfolderBase]: 1/190 cut-off events. [2023-11-12 02:25:44,225 INFO L125 PetriNetUnfolderBase]: For 5/5 co-relation queries the response was YES. [2023-11-12 02:25:44,228 INFO L83 FinitePrefix]: Finished finitePrefix Result has 214 conditions, 190 events. 1/190 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 180 event pairs, 0 based on Foata normal form. 0/165 useless extension candidates. Maximal degree in co-relation 170. Up to 2 conditions per place. [2023-11-12 02:25:44,234 INFO L119 LiptonReduction]: Number of co-enabled transitions 7172 [2023-11-12 02:25:54,260 INFO L134 LiptonReduction]: Checked pairs total: 36423 [2023-11-12 02:25:54,260 INFO L136 LiptonReduction]: Total number of compositions: 135 [2023-11-12 02:25:54,277 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-12 02:25:54,285 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;@309afd34, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-12 02:25:54,285 INFO L358 AbstractCegarLoop]: Starting to check reachability of 54 error locations. [2023-11-12 02:25:54,288 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-12 02:25:54,288 INFO L124 PetriNetUnfolderBase]: 0/2 cut-off events. [2023-11-12 02:25:54,289 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-12 02:25:54,289 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:25:54,290 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-11-12 02:25:54,290 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 51 more)] === [2023-11-12 02:25:54,296 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:25:54,296 INFO L85 PathProgramCache]: Analyzing trace with hash 933877, now seen corresponding path program 1 times [2023-11-12 02:25:54,306 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:25:54,307 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1117281911] [2023-11-12 02:25:54,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:25:54,308 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:25:54,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:25:54,748 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:25:54,749 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:25:54,749 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1117281911] [2023-11-12 02:25:54,750 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1117281911] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:25:54,751 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:25:54,751 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-12 02:25:54,753 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [101180536] [2023-11-12 02:25:54,754 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:25:54,764 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 02:25:54,771 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:25:54,801 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 02:25:54,801 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 02:25:54,828 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 167 out of 361 [2023-11-12 02:25:54,833 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 91 places, 72 transitions, 177 flow. Second operand has 3 states, 3 states have (on average 168.0) internal successors, (504), 3 states have internal predecessors, (504), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:25:54,836 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:25:54,836 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 167 of 361 [2023-11-12 02:25:54,837 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand