./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 9bd2c7ff Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4557f52-a1b4-469d-ae08-7e61f75a2f05/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4557f52-a1b4-469d-ae08-7e61f75a2f05/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_b4557f52-a1b4-469d-ae08-7e61f75a2f05/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4557f52-a1b4-469d-ae08-7e61f75a2f05/bin/uautomizer-verify-uCwYo4JHxu/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_b4557f52-a1b4-469d-ae08-7e61f75a2f05/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_b4557f52-a1b4-469d-ae08-7e61f75a2f05/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 b1e99af7c76570461a4b0ac70d664412f250ec04f47fd9ca8c0f85236f1348c6 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 07:36:32,833 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 07:36:32,962 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4557f52-a1b4-469d-ae08-7e61f75a2f05/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-11-19 07:36:32,971 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 07:36:32,972 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 07:36:33,014 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 07:36:33,016 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 07:36:33,016 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 07:36:33,017 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 07:36:33,023 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 07:36:33,024 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 07:36:33,025 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 07:36:33,025 INFO L153 SettingsManager]: * Use SBE=true [2023-11-19 07:36:33,027 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 07:36:33,028 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 07:36:33,028 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 07:36:33,029 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 07:36:33,029 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 07:36:33,030 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 07:36:33,030 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 07:36:33,031 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 07:36:33,031 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 07:36:33,032 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-19 07:36:33,032 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 07:36:33,033 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 07:36:33,033 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 07:36:33,034 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 07:36:33,035 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 07:36:33,035 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 07:36:33,036 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 07:36:33,037 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:36:33,038 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 07:36:33,038 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 07:36:33,038 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 07:36:33,039 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-19 07:36:33,039 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 07:36:33,039 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-19 07:36:33,039 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 07:36:33,040 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-19 07:36:33,040 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 07:36:33,040 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-19 07:36:33,041 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_b4557f52-a1b4-469d-ae08-7e61f75a2f05/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4557f52-a1b4-469d-ae08-7e61f75a2f05/bin/uautomizer-verify-uCwYo4JHxu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b1e99af7c76570461a4b0ac70d664412f250ec04f47fd9ca8c0f85236f1348c6 [2023-11-19 07:36:33,317 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 07:36:33,340 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 07:36:33,343 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 07:36:33,344 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 07:36:33,345 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 07:36:33,346 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4557f52-a1b4-469d-ae08-7e61f75a2f05/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/weaver/parallel-parallel-sum-1.wvr.c [2023-11-19 07:36:36,536 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 07:36:36,767 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 07:36:36,768 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4557f52-a1b4-469d-ae08-7e61f75a2f05/sv-benchmarks/c/weaver/parallel-parallel-sum-1.wvr.c [2023-11-19 07:36:36,777 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4557f52-a1b4-469d-ae08-7e61f75a2f05/bin/uautomizer-verify-uCwYo4JHxu/data/fef482939/f0736105013347c6bcd631ee4a31ae27/FLAG36b632fdd [2023-11-19 07:36:36,792 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4557f52-a1b4-469d-ae08-7e61f75a2f05/bin/uautomizer-verify-uCwYo4JHxu/data/fef482939/f0736105013347c6bcd631ee4a31ae27 [2023-11-19 07:36:36,795 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 07:36:36,797 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 07:36:36,798 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 07:36:36,799 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 07:36:36,804 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 07:36:36,805 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:36:36" (1/1) ... [2023-11-19 07:36:36,807 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6c6b1c97 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:36:36, skipping insertion in model container [2023-11-19 07:36:36,807 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:36:36" (1/1) ... [2023-11-19 07:36:36,843 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 07:36:37,060 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:36:37,071 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 07:36:37,113 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:36:37,125 WARN L675 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 07:36:37,126 WARN L675 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 07:36:37,134 INFO L206 MainTranslator]: Completed translation [2023-11-19 07:36:37,134 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:36:37 WrapperNode [2023-11-19 07:36:37,134 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 07:36:37,135 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 07:36:37,136 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 07:36:37,136 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 07:36:37,144 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:36:37" (1/1) ... [2023-11-19 07:36:37,155 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:36:37" (1/1) ... [2023-11-19 07:36:37,190 INFO L138 Inliner]: procedures = 27, calls = 69, calls flagged for inlining = 19, calls inlined = 25, statements flattened = 385 [2023-11-19 07:36:37,191 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 07:36:37,192 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 07:36:37,192 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 07:36:37,192 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 07:36:37,204 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:36:37" (1/1) ... [2023-11-19 07:36:37,212 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:36:37" (1/1) ... [2023-11-19 07:36:37,219 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:36:37" (1/1) ... [2023-11-19 07:36:37,220 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:36:37" (1/1) ... [2023-11-19 07:36:37,236 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:36:37" (1/1) ... [2023-11-19 07:36:37,247 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:36:37" (1/1) ... [2023-11-19 07:36:37,253 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:36:37" (1/1) ... [2023-11-19 07:36:37,255 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:36:37" (1/1) ... [2023-11-19 07:36:37,261 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 07:36:37,262 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 07:36:37,262 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 07:36:37,262 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 07:36:37,263 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:36:37" (1/1) ... [2023-11-19 07:36:37,269 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:36:37,285 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4557f52-a1b4-469d-ae08-7e61f75a2f05/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:36:37,301 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4557f52-a1b4-469d-ae08-7e61f75a2f05/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 07:36:37,348 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4557f52-a1b4-469d-ae08-7e61f75a2f05/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 07:36:37,360 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 07:36:37,361 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 07:36:37,361 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-19 07:36:37,361 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-19 07:36:37,361 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-11-19 07:36:37,363 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-11-19 07:36:37,363 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-11-19 07:36:37,363 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-11-19 07:36:37,364 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-11-19 07:36:37,364 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-11-19 07:36:37,364 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2023-11-19 07:36:37,364 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2023-11-19 07:36:37,366 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 07:36:37,367 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-19 07:36:37,367 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-19 07:36:37,367 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-19 07:36:37,367 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 07:36:37,367 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 07:36:37,367 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 07:36:37,369 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 07:36:37,564 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 07:36:37,567 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 07:36:38,271 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 07:36:38,958 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 07:36:38,959 INFO L302 CfgBuilder]: Removed 5 assume(true) statements. [2023-11-19 07:36:38,969 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:36:38 BoogieIcfgContainer [2023-11-19 07:36:38,970 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 07:36:38,974 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 07:36:38,975 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 07:36:38,979 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 07:36:38,979 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:36:36" (1/3) ... [2023-11-19 07:36:38,980 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ded6ed2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:36:38, skipping insertion in model container [2023-11-19 07:36:38,981 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:36:37" (2/3) ... [2023-11-19 07:36:38,981 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ded6ed2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:36:38, skipping insertion in model container [2023-11-19 07:36:38,981 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:36:38" (3/3) ... [2023-11-19 07:36:38,983 INFO L112 eAbstractionObserver]: Analyzing ICFG parallel-parallel-sum-1.wvr.c [2023-11-19 07:36:38,993 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-19 07:36:39,004 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 07:36:39,005 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 36 error locations. [2023-11-19 07:36:39,006 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-19 07:36:39,275 INFO L144 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2023-11-19 07:36:39,334 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 261 places, 286 transitions, 600 flow [2023-11-19 07:36:39,524 INFO L124 PetriNetUnfolderBase]: 38/282 cut-off events. [2023-11-19 07:36:39,524 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2023-11-19 07:36:39,535 INFO L83 FinitePrefix]: Finished finitePrefix Result has 299 conditions, 282 events. 38/282 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 318 event pairs, 0 based on Foata normal form. 0/208 useless extension candidates. Maximal degree in co-relation 219. Up to 5 conditions per place. [2023-11-19 07:36:39,535 INFO L82 GeneralOperation]: Start removeDead. Operand has 261 places, 286 transitions, 600 flow [2023-11-19 07:36:39,552 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 232 places, 256 transitions, 533 flow [2023-11-19 07:36:39,557 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-11-19 07:36:39,576 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 232 places, 256 transitions, 533 flow [2023-11-19 07:36:39,580 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 232 places, 256 transitions, 533 flow [2023-11-19 07:36:39,581 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 232 places, 256 transitions, 533 flow [2023-11-19 07:36:39,677 INFO L124 PetriNetUnfolderBase]: 37/256 cut-off events. [2023-11-19 07:36:39,677 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-11-19 07:36:39,683 INFO L83 FinitePrefix]: Finished finitePrefix Result has 272 conditions, 256 events. 37/256 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 305 event pairs, 0 based on Foata normal form. 0/183 useless extension candidates. Maximal degree in co-relation 219. Up to 5 conditions per place. [2023-11-19 07:36:39,692 INFO L119 LiptonReduction]: Number of co-enabled transitions 10522 [2023-11-19 07:36:49,303 INFO L134 LiptonReduction]: Checked pairs total: 35341 [2023-11-19 07:36:49,303 INFO L136 LiptonReduction]: Total number of compositions: 237 [2023-11-19 07:36:49,320 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 07:36:49,327 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;@765f7cf7, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-19 07:36:49,328 INFO L358 AbstractCegarLoop]: Starting to check reachability of 72 error locations. [2023-11-19 07:36:49,329 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-19 07:36:49,330 INFO L124 PetriNetUnfolderBase]: 0/0 cut-off events. [2023-11-19 07:36:49,330 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-19 07:36:49,330 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:36:49,331 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-11-19 07:36:49,332 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 69 more)] === [2023-11-19 07:36:49,337 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:36:49,337 INFO L85 PathProgramCache]: Analyzing trace with hash 1642, now seen corresponding path program 1 times [2023-11-19 07:36:49,348 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:36:49,348 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2105759285] [2023-11-19 07:36:49,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:36:49,349 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:36:49,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:36:49,461 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 07:36:49,461 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:36:49,462 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2105759285] [2023-11-19 07:36:49,463 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2105759285] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:36:49,463 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:36:49,463 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-11-19 07:36:49,465 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [699158613] [2023-11-19 07:36:49,466 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:36:49,475 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-19 07:36:49,482 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:36:49,509 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-19 07:36:49,510 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-19 07:36:49,517 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 204 out of 523 [2023-11-19 07:36:49,524 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 77 places, 69 transitions, 159 flow. Second operand has 2 states, 2 states have (on average 204.5) internal successors, (409), 2 states have internal predecessors, (409), 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 07:36:49,525 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:36:49,525 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 204 of 523 [2023-11-19 07:36:49,526 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:37:09,332 INFO L124 PetriNetUnfolderBase]: 106106/130550 cut-off events. [2023-11-19 07:37:09,332 INFO L125 PetriNetUnfolderBase]: For 2940/2940 co-relation queries the response was YES. [2023-11-19 07:37:09,565 INFO L83 FinitePrefix]: Finished finitePrefix Result has 263882 conditions, 130550 events. 106106/130550 cut-off events. For 2940/2940 co-relation queries the response was YES. Maximal size of possible extension queue 9009. Compared 726066 event pairs, 71057 based on Foata normal form. 0/40196 useless extension candidates. Maximal degree in co-relation 241620. Up to 129995 conditions per place. [2023-11-19 07:37:10,406 INFO L140 encePairwiseOnDemand]: 513/523 looper letters, 55 selfloop transitions, 0 changer transitions 0/59 dead transitions. [2023-11-19 07:37:10,406 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 59 transitions, 249 flow [2023-11-19 07:37:10,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-19 07:37:10,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-11-19 07:37:10,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 473 transitions. [2023-11-19 07:37:10,422 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4521988527724665 [2023-11-19 07:37:10,423 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 473 transitions. [2023-11-19 07:37:10,424 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 473 transitions. [2023-11-19 07:37:10,426 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:37:10,429 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 473 transitions. [2023-11-19 07:37:10,435 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 236.5) internal successors, (473), 2 states have internal predecessors, (473), 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 07:37:10,443 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 523.0) internal successors, (1569), 3 states have internal predecessors, (1569), 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 07:37:10,444 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 523.0) internal successors, (1569), 3 states have internal predecessors, (1569), 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 07:37:10,446 INFO L175 Difference]: Start difference. First operand has 77 places, 69 transitions, 159 flow. Second operand 2 states and 473 transitions. [2023-11-19 07:37:10,448 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 59 transitions, 249 flow [2023-11-19 07:37:11,932 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 59 transitions, 236 flow, removed 0 selfloop flow, removed 7 redundant places. [2023-11-19 07:37:11,952 INFO L231 Difference]: Finished difference. Result has 61 places, 59 transitions, 126 flow [2023-11-19 07:37:11,954 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=523, PETRI_DIFFERENCE_MINUEND_FLOW=126, PETRI_DIFFERENCE_MINUEND_PLACES=60, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=59, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=59, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=126, PETRI_PLACES=61, PETRI_TRANSITIONS=59} [2023-11-19 07:37:11,960 INFO L281 CegarLoopForPetriNet]: 77 programPoint places, -16 predicate places. [2023-11-19 07:37:11,960 INFO L495 AbstractCegarLoop]: Abstraction has has 61 places, 59 transitions, 126 flow [2023-11-19 07:37:11,961 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 204.5) internal successors, (409), 2 states have internal predecessors, (409), 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 07:37:11,962 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:37:11,962 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1] [2023-11-19 07:37:11,963 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-19 07:37:11,963 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 69 more)] === [2023-11-19 07:37:11,975 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:37:11,975 INFO L85 PathProgramCache]: Analyzing trace with hash 52520, now seen corresponding path program 1 times [2023-11-19 07:37:11,976 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:37:11,976 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1544787976] [2023-11-19 07:37:11,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:37:11,977 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:37:12,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:12,313 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 07:37:12,314 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:37:12,314 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1544787976] [2023-11-19 07:37:12,315 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1544787976] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:37:12,315 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:37:12,315 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-19 07:37:12,315 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1837876604] [2023-11-19 07:37:12,316 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:37:12,317 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:37:12,318 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:37:12,318 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:37:12,319 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:37:12,337 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 199 out of 523 [2023-11-19 07:37:12,339 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 59 transitions, 126 flow. Second operand has 3 states, 3 states have (on average 199.66666666666666) internal successors, (599), 3 states have internal predecessors, (599), 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 07:37:12,339 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:37:12,339 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 199 of 523 [2023-11-19 07:37:12,340 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand