./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/goblint-regression/04-mutex_17a-ps_add1_nr.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 0e0057cc 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_dfc08b50-0816-49a6-8b9f-227cd46f2e74/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfc08b50-0816-49a6-8b9f-227cd46f2e74/bin/uautomizer-verify-BQ2R08f2Ya/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfc08b50-0816-49a6-8b9f-227cd46f2e74/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfc08b50-0816-49a6-8b9f-227cd46f2e74/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/04-mutex_17a-ps_add1_nr.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfc08b50-0816-49a6-8b9f-227cd46f2e74/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfc08b50-0816-49a6-8b9f-227cd46f2e74/bin/uautomizer-verify-BQ2R08f2Ya --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 7a262e05e4496d34901f24af4dfa792436c621eaf484a3e13626b3b224666ac4 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-29 01:17:38,465 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 01:17:38,527 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfc08b50-0816-49a6-8b9f-227cd46f2e74/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-11-29 01:17:38,531 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-29 01:17:38,532 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-29 01:17:38,556 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 01:17:38,557 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-29 01:17:38,558 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-29 01:17:38,558 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-29 01:17:38,559 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-29 01:17:38,560 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-29 01:17:38,560 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-29 01:17:38,561 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 01:17:38,561 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 01:17:38,562 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 01:17:38,562 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 01:17:38,563 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-29 01:17:38,563 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-29 01:17:38,564 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-29 01:17:38,564 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-29 01:17:38,565 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 01:17:38,566 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-29 01:17:38,566 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-29 01:17:38,566 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-29 01:17:38,567 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-29 01:17:38,567 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-29 01:17:38,568 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-29 01:17:38,568 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-29 01:17:38,568 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 01:17:38,569 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 01:17:38,569 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 01:17:38,570 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-29 01:17:38,570 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-29 01:17:38,570 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 01:17:38,571 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 01:17:38,571 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-29 01:17:38,571 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-29 01:17:38,571 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-29 01:17:38,572 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-29 01:17:38,572 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-29 01:17:38,572 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-29 01:17:38,572 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-29 01:17:38,572 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-29 01:17:38,573 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-29 01:17:38,573 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_dfc08b50-0816-49a6-8b9f-227cd46f2e74/bin/uautomizer-verify-BQ2R08f2Ya/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfc08b50-0816-49a6-8b9f-227cd46f2e74/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7a262e05e4496d34901f24af4dfa792436c621eaf484a3e13626b3b224666ac4 [2023-11-29 01:17:38,790 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-29 01:17:38,810 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-29 01:17:38,813 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-29 01:17:38,814 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-29 01:17:38,814 INFO L274 PluginConnector]: CDTParser initialized [2023-11-29 01:17:38,816 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfc08b50-0816-49a6-8b9f-227cd46f2e74/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/goblint-regression/04-mutex_17a-ps_add1_nr.i [2023-11-29 01:17:41,658 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-29 01:17:41,880 INFO L384 CDTParser]: Found 1 translation units. [2023-11-29 01:17:41,880 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfc08b50-0816-49a6-8b9f-227cd46f2e74/sv-benchmarks/c/goblint-regression/04-mutex_17a-ps_add1_nr.i [2023-11-29 01:17:41,898 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfc08b50-0816-49a6-8b9f-227cd46f2e74/bin/uautomizer-verify-BQ2R08f2Ya/data/c275d08fb/df58af15d6fb422687b0847ab45203f3/FLAG62312979f [2023-11-29 01:17:41,912 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfc08b50-0816-49a6-8b9f-227cd46f2e74/bin/uautomizer-verify-BQ2R08f2Ya/data/c275d08fb/df58af15d6fb422687b0847ab45203f3 [2023-11-29 01:17:41,915 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-29 01:17:41,916 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-29 01:17:41,918 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-29 01:17:41,918 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-29 01:17:41,923 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-29 01:17:41,924 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 01:17:41" (1/1) ... [2023-11-29 01:17:41,925 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@779f8f1d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:17:41, skipping insertion in model container [2023-11-29 01:17:41,925 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 01:17:41" (1/1) ... [2023-11-29 01:17:41,974 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 01:17:42,365 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 01:17:42,379 INFO L202 MainTranslator]: Completed pre-run [2023-11-29 01:17:42,421 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 01:17:42,483 INFO L206 MainTranslator]: Completed translation [2023-11-29 01:17:42,484 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:17:42 WrapperNode [2023-11-29 01:17:42,484 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-29 01:17:42,485 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-29 01:17:42,485 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-29 01:17:42,486 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-29 01:17:42,493 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:17:42" (1/1) ... [2023-11-29 01:17:42,510 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:17:42" (1/1) ... [2023-11-29 01:17:42,532 INFO L138 Inliner]: procedures = 267, calls = 17, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 58 [2023-11-29 01:17:42,533 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-29 01:17:42,533 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-29 01:17:42,534 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-29 01:17:42,534 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-29 01:17:42,543 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:17:42" (1/1) ... [2023-11-29 01:17:42,543 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:17:42" (1/1) ... [2023-11-29 01:17:42,547 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:17:42" (1/1) ... [2023-11-29 01:17:42,560 INFO L175 MemorySlicer]: Split 6 memory accesses to 2 slices as follows [5, 1]. 83 percent of accesses are in the largest equivalence class. The 5 initializations are split as follows [5, 0]. The 1 writes are split as follows [0, 1]. [2023-11-29 01:17:42,561 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:17:42" (1/1) ... [2023-11-29 01:17:42,561 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:17:42" (1/1) ... [2023-11-29 01:17:42,566 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:17:42" (1/1) ... [2023-11-29 01:17:42,568 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:17:42" (1/1) ... [2023-11-29 01:17:42,570 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:17:42" (1/1) ... [2023-11-29 01:17:42,571 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:17:42" (1/1) ... [2023-11-29 01:17:42,574 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-29 01:17:42,575 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-29 01:17:42,575 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-29 01:17:42,576 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-29 01:17:42,576 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:17:42" (1/1) ... [2023-11-29 01:17:42,583 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 01:17:42,594 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfc08b50-0816-49a6-8b9f-227cd46f2e74/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:17:42,605 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfc08b50-0816-49a6-8b9f-227cd46f2e74/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-29 01:17:42,607 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfc08b50-0816-49a6-8b9f-227cd46f2e74/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-29 01:17:42,641 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-29 01:17:42,641 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-29 01:17:42,642 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2023-11-29 01:17:42,642 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2023-11-29 01:17:42,642 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2023-11-29 01:17:42,642 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-11-29 01:17:42,642 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-29 01:17:42,642 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-11-29 01:17:42,642 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-11-29 01:17:42,643 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-29 01:17:42,643 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-11-29 01:17:42,643 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-29 01:17:42,643 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-29 01:17:42,644 WARN L213 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-29 01:17:42,770 INFO L241 CfgBuilder]: Building ICFG [2023-11-29 01:17:42,773 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-29 01:17:42,920 INFO L282 CfgBuilder]: Performing block encoding [2023-11-29 01:17:43,023 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-29 01:17:43,023 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-29 01:17:43,023 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 01:17:43 BoogieIcfgContainer [2023-11-29 01:17:43,024 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-29 01:17:43,026 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-29 01:17:43,026 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-29 01:17:43,028 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-29 01:17:43,029 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 01:17:41" (1/3) ... [2023-11-29 01:17:43,029 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7dd8c156 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 01:17:43, skipping insertion in model container [2023-11-29 01:17:43,030 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:17:42" (2/3) ... [2023-11-29 01:17:43,030 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7dd8c156 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 01:17:43, skipping insertion in model container [2023-11-29 01:17:43,030 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 01:17:43" (3/3) ... [2023-11-29 01:17:43,031 INFO L112 eAbstractionObserver]: Analyzing ICFG 04-mutex_17a-ps_add1_nr.i [2023-11-29 01:17:43,038 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-29 01:17:43,045 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-29 01:17:43,046 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 10 error locations. [2023-11-29 01:17:43,046 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-29 01:17:43,074 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-29 01:17:43,102 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 43 places, 42 transitions, 88 flow [2023-11-29 01:17:43,128 INFO L124 PetriNetUnfolderBase]: 3/41 cut-off events. [2023-11-29 01:17:43,128 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-29 01:17:43,131 INFO L83 FinitePrefix]: Finished finitePrefix Result has 45 conditions, 41 events. 3/41 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 61 event pairs, 0 based on Foata normal form. 0/28 useless extension candidates. Maximal degree in co-relation 39. Up to 2 conditions per place. [2023-11-29 01:17:43,131 INFO L82 GeneralOperation]: Start removeDead. Operand has 43 places, 42 transitions, 88 flow [2023-11-29 01:17:43,135 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 42 places, 41 transitions, 85 flow [2023-11-29 01:17:43,145 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-29 01:17:43,151 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;@49b57b7c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-29 01:17:43,152 INFO L358 AbstractCegarLoop]: Starting to check reachability of 13 error locations. [2023-11-29 01:17:43,157 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-29 01:17:43,158 INFO L124 PetriNetUnfolderBase]: 1/11 cut-off events. [2023-11-29 01:17:43,158 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-29 01:17:43,158 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 01:17:43,159 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-11-29 01:17:43,159 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2023-11-29 01:17:43,164 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:17:43,164 INFO L85 PathProgramCache]: Analyzing trace with hash 2052762965, now seen corresponding path program 1 times [2023-11-29 01:17:43,172 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:17:43,172 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [406276278] [2023-11-29 01:17:43,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:17:43,172 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:17:43,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:17:43,418 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 01:17:43,419 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:17:43,419 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [406276278] [2023-11-29 01:17:43,420 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [406276278] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:17:43,420 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:17:43,420 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 01:17:43,421 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1910852212] [2023-11-29 01:17:43,422 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:17:43,430 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 01:17:43,435 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:17:43,460 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 01:17:43,460 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 01:17:43,469 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 23 out of 42 [2023-11-29 01:17:43,471 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 41 transitions, 85 flow. Second operand has 4 states, 4 states have (on average 24.25) internal successors, (97), 4 states have internal predecessors, (97), 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) [2023-11-29 01:17:43,472 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 01:17:43,472 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 23 of 42 [2023-11-29 01:17:43,473 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 01:17:43,621 INFO L124 PetriNetUnfolderBase]: 84/245 cut-off events. [2023-11-29 01:17:43,621 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-29 01:17:43,624 INFO L83 FinitePrefix]: Finished finitePrefix Result has 421 conditions, 245 events. 84/245 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 1213 event pairs, 23 based on Foata normal form. 15/235 useless extension candidates. Maximal degree in co-relation 412. Up to 118 conditions per place. [2023-11-29 01:17:43,627 INFO L140 encePairwiseOnDemand]: 36/42 looper letters, 32 selfloop transitions, 6 changer transitions 9/69 dead transitions. [2023-11-29 01:17:43,627 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 69 transitions, 235 flow [2023-11-29 01:17:43,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 01:17:43,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-11-29 01:17:43,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 166 transitions. [2023-11-29 01:17:43,640 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7904761904761904 [2023-11-29 01:17:43,641 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 166 transitions. [2023-11-29 01:17:43,641 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 166 transitions. [2023-11-29 01:17:43,642 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 01:17:43,644 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 166 transitions. [2023-11-29 01:17:43,646 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 33.2) internal successors, (166), 5 states have internal predecessors, (166), 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) [2023-11-29 01:17:43,649 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 42.0) internal successors, (252), 6 states have internal predecessors, (252), 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) [2023-11-29 01:17:43,649 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 42.0) internal successors, (252), 6 states have internal predecessors, (252), 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) [2023-11-29 01:17:43,650 INFO L175 Difference]: Start difference. First operand has 42 places, 41 transitions, 85 flow. Second operand 5 states and 166 transitions. [2023-11-29 01:17:43,651 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 69 transitions, 235 flow [2023-11-29 01:17:43,654 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 69 transitions, 234 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-29 01:17:43,657 INFO L231 Difference]: Finished difference. Result has 48 places, 46 transitions, 128 flow [2023-11-29 01:17:43,659 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=84, PETRI_DIFFERENCE_MINUEND_PLACES=41, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=128, PETRI_PLACES=48, PETRI_TRANSITIONS=46} [2023-11-29 01:17:43,662 INFO L281 CegarLoopForPetriNet]: 42 programPoint places, 6 predicate places. [2023-11-29 01:17:43,662 INFO L495 AbstractCegarLoop]: Abstraction has has 48 places, 46 transitions, 128 flow [2023-11-29 01:17:43,663 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 24.25) internal successors, (97), 4 states have internal predecessors, (97), 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) [2023-11-29 01:17:43,663 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 01:17:43,663 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-11-29 01:17:43,663 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-29 01:17:43,664 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2023-11-29 01:17:43,664 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:17:43,664 INFO L85 PathProgramCache]: Analyzing trace with hash 2052607917, now seen corresponding path program 1 times [2023-11-29 01:17:43,665 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:17:43,665 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [454683976] [2023-11-29 01:17:43,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:17:43,665 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:17:43,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:17:43,728 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 01:17:43,728 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:17:43,728 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [454683976] [2023-11-29 01:17:43,729 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [454683976] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:17:43,729 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:17:43,729 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 01:17:43,729 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [443264266] [2023-11-29 01:17:43,729 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:17:43,730 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 01:17:43,731 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:17:43,731 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 01:17:43,732 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 01:17:43,753 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 42 [2023-11-29 01:17:43,754 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 46 transitions, 128 flow. Second operand has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 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) [2023-11-29 01:17:43,754 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 01:17:43,754 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 42 [2023-11-29 01:17:43,754 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 01:17:43,922 INFO L124 PetriNetUnfolderBase]: 166/464 cut-off events. [2023-11-29 01:17:43,922 INFO L125 PetriNetUnfolderBase]: For 128/130 co-relation queries the response was YES. [2023-11-29 01:17:43,925 INFO L83 FinitePrefix]: Finished finitePrefix Result has 958 conditions, 464 events. 166/464 cut-off events. For 128/130 co-relation queries the response was YES. Maximal size of possible extension queue 36. Compared 2639 event pairs, 62 based on Foata normal form. 12/423 useless extension candidates. Maximal degree in co-relation 945. Up to 184 conditions per place. [2023-11-29 01:17:43,928 INFO L140 encePairwiseOnDemand]: 31/42 looper letters, 50 selfloop transitions, 9 changer transitions 0/76 dead transitions. [2023-11-29 01:17:43,928 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 52 places, 76 transitions, 343 flow [2023-11-29 01:17:43,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 01:17:43,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-11-29 01:17:43,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 141 transitions. [2023-11-29 01:17:43,931 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6714285714285714 [2023-11-29 01:17:43,931 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 141 transitions. [2023-11-29 01:17:43,931 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 141 transitions. [2023-11-29 01:17:43,932 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 01:17:43,932 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 141 transitions. [2023-11-29 01:17:43,934 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 28.2) internal successors, (141), 5 states have internal predecessors, (141), 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) [2023-11-29 01:17:43,935 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 42.0) internal successors, (252), 6 states have internal predecessors, (252), 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) [2023-11-29 01:17:43,936 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 42.0) internal successors, (252), 6 states have internal predecessors, (252), 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) [2023-11-29 01:17:43,936 INFO L175 Difference]: Start difference. First operand has 48 places, 46 transitions, 128 flow. Second operand 5 states and 141 transitions. [2023-11-29 01:17:43,936 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 52 places, 76 transitions, 343 flow [2023-11-29 01:17:43,939 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 76 transitions, 343 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-29 01:17:43,941 INFO L231 Difference]: Finished difference. Result has 55 places, 53 transitions, 195 flow [2023-11-29 01:17:43,941 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=128, PETRI_DIFFERENCE_MINUEND_PLACES=48, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=195, PETRI_PLACES=55, PETRI_TRANSITIONS=53} [2023-11-29 01:17:43,942 INFO L281 CegarLoopForPetriNet]: 42 programPoint places, 13 predicate places. [2023-11-29 01:17:43,943 INFO L495 AbstractCegarLoop]: Abstraction has has 55 places, 53 transitions, 195 flow [2023-11-29 01:17:43,943 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 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) [2023-11-29 01:17:43,943 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 01:17:43,943 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:17:43,943 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-29 01:17:43,944 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2023-11-29 01:17:43,944 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:17:43,945 INFO L85 PathProgramCache]: Analyzing trace with hash -793663820, now seen corresponding path program 1 times [2023-11-29 01:17:43,945 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:17:43,945 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1532288935] [2023-11-29 01:17:43,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:17:43,946 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:17:43,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:17:44,005 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 01:17:44,005 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:17:44,005 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1532288935] [2023-11-29 01:17:44,006 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1532288935] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:17:44,006 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:17:44,006 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 01:17:44,006 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1711336282] [2023-11-29 01:17:44,007 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:17:44,007 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 01:17:44,007 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:17:44,008 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 01:17:44,008 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 01:17:44,029 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 42 [2023-11-29 01:17:44,030 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 55 places, 53 transitions, 195 flow. Second operand has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 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) [2023-11-29 01:17:44,030 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 01:17:44,030 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 42 [2023-11-29 01:17:44,030 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 01:17:44,149 INFO L124 PetriNetUnfolderBase]: 161/448 cut-off events. [2023-11-29 01:17:44,149 INFO L125 PetriNetUnfolderBase]: For 290/294 co-relation queries the response was YES. [2023-11-29 01:17:44,151 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1123 conditions, 448 events. 161/448 cut-off events. For 290/294 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 2542 event pairs, 86 based on Foata normal form. 6/425 useless extension candidates. Maximal degree in co-relation 1107. Up to 258 conditions per place. [2023-11-29 01:17:44,154 INFO L140 encePairwiseOnDemand]: 34/42 looper letters, 44 selfloop transitions, 7 changer transitions 2/70 dead transitions. [2023-11-29 01:17:44,154 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 70 transitions, 361 flow [2023-11-29 01:17:44,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 01:17:44,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-11-29 01:17:44,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 133 transitions. [2023-11-29 01:17:44,156 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6333333333333333 [2023-11-29 01:17:44,156 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 133 transitions. [2023-11-29 01:17:44,156 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 133 transitions. [2023-11-29 01:17:44,156 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 01:17:44,157 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 133 transitions. [2023-11-29 01:17:44,157 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 26.6) internal successors, (133), 5 states have internal predecessors, (133), 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) [2023-11-29 01:17:44,159 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 42.0) internal successors, (252), 6 states have internal predecessors, (252), 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) [2023-11-29 01:17:44,159 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 42.0) internal successors, (252), 6 states have internal predecessors, (252), 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) [2023-11-29 01:17:44,159 INFO L175 Difference]: Start difference. First operand has 55 places, 53 transitions, 195 flow. Second operand 5 states and 133 transitions. [2023-11-29 01:17:44,159 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 70 transitions, 361 flow [2023-11-29 01:17:44,162 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 70 transitions, 361 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-29 01:17:44,164 INFO L231 Difference]: Finished difference. Result has 59 places, 52 transitions, 205 flow [2023-11-29 01:17:44,164 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=191, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=52, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=205, PETRI_PLACES=59, PETRI_TRANSITIONS=52} [2023-11-29 01:17:44,165 INFO L281 CegarLoopForPetriNet]: 42 programPoint places, 17 predicate places. [2023-11-29 01:17:44,165 INFO L495 AbstractCegarLoop]: Abstraction has has 59 places, 52 transitions, 205 flow [2023-11-29 01:17:44,166 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 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) [2023-11-29 01:17:44,166 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 01:17:44,166 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:17:44,166 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-29 01:17:44,166 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2023-11-29 01:17:44,167 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:17:44,167 INFO L85 PathProgramCache]: Analyzing trace with hash 1165279631, now seen corresponding path program 1 times [2023-11-29 01:17:44,167 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:17:44,167 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1917217290] [2023-11-29 01:17:44,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:17:44,167 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:17:44,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:17:44,228 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 01:17:44,228 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:17:44,228 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1917217290] [2023-11-29 01:17:44,229 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1917217290] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:17:44,229 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:17:44,229 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 01:17:44,229 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1846148672] [2023-11-29 01:17:44,230 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:17:44,230 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 01:17:44,230 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:17:44,231 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 01:17:44,231 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 01:17:44,257 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 42 [2023-11-29 01:17:44,257 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 59 places, 52 transitions, 205 flow. Second operand has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 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) [2023-11-29 01:17:44,257 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 01:17:44,257 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 42 [2023-11-29 01:17:44,257 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 01:17:44,360 INFO L124 PetriNetUnfolderBase]: 161/464 cut-off events. [2023-11-29 01:17:44,360 INFO L125 PetriNetUnfolderBase]: For 326/326 co-relation queries the response was YES. [2023-11-29 01:17:44,361 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1162 conditions, 464 events. 161/464 cut-off events. For 326/326 co-relation queries the response was YES. Maximal size of possible extension queue 37. Compared 2615 event pairs, 77 based on Foata normal form. 6/438 useless extension candidates. Maximal degree in co-relation 1145. Up to 213 conditions per place. [2023-11-29 01:17:44,364 INFO L140 encePairwiseOnDemand]: 35/42 looper letters, 32 selfloop transitions, 9 changer transitions 6/64 dead transitions. [2023-11-29 01:17:44,364 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 64 transitions, 340 flow [2023-11-29 01:17:44,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 01:17:44,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-29 01:17:44,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 107 transitions. [2023-11-29 01:17:44,366 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6369047619047619 [2023-11-29 01:17:44,366 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 107 transitions. [2023-11-29 01:17:44,366 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 107 transitions. [2023-11-29 01:17:44,381 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 01:17:44,381 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 107 transitions. [2023-11-29 01:17:44,381 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 26.75) internal successors, (107), 4 states have internal predecessors, (107), 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) [2023-11-29 01:17:44,383 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 42.0) internal successors, (210), 5 states have internal predecessors, (210), 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) [2023-11-29 01:17:44,383 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 42.0) internal successors, (210), 5 states have internal predecessors, (210), 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) [2023-11-29 01:17:44,383 INFO L175 Difference]: Start difference. First operand has 59 places, 52 transitions, 205 flow. Second operand 4 states and 107 transitions. [2023-11-29 01:17:44,383 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 64 transitions, 340 flow [2023-11-29 01:17:44,386 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 64 transitions, 333 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-29 01:17:44,388 INFO L231 Difference]: Finished difference. Result has 58 places, 51 transitions, 210 flow [2023-11-29 01:17:44,388 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=192, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=51, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=42, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=210, PETRI_PLACES=58, PETRI_TRANSITIONS=51} [2023-11-29 01:17:44,389 INFO L281 CegarLoopForPetriNet]: 42 programPoint places, 16 predicate places. [2023-11-29 01:17:44,390 INFO L495 AbstractCegarLoop]: Abstraction has has 58 places, 51 transitions, 210 flow [2023-11-29 01:17:44,390 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 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) [2023-11-29 01:17:44,390 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 01:17:44,390 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:17:44,390 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-29 01:17:44,390 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2023-11-29 01:17:44,391 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:17:44,391 INFO L85 PathProgramCache]: Analyzing trace with hash 1763930386, now seen corresponding path program 1 times [2023-11-29 01:17:44,391 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:17:44,391 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1960242276] [2023-11-29 01:17:44,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:17:44,391 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:17:44,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 01:17:44,405 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-29 01:17:44,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 01:17:44,432 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-29 01:17:44,432 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-29 01:17:44,433 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 13 remaining) [2023-11-29 01:17:44,435 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 13 remaining) [2023-11-29 01:17:44,435 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 13 remaining) [2023-11-29 01:17:44,435 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 13 remaining) [2023-11-29 01:17:44,435 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 13 remaining) [2023-11-29 01:17:44,436 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 13 remaining) [2023-11-29 01:17:44,436 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 13 remaining) [2023-11-29 01:17:44,436 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 13 remaining) [2023-11-29 01:17:44,436 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 13 remaining) [2023-11-29 01:17:44,436 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 13 remaining) [2023-11-29 01:17:44,437 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 13 remaining) [2023-11-29 01:17:44,437 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 13 remaining) [2023-11-29 01:17:44,437 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 13 remaining) [2023-11-29 01:17:44,437 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-29 01:17:44,437 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2023-11-29 01:17:44,443 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-29 01:17:44,444 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-29 01:17:44,457 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~pre34 could not be translated [2023-11-29 01:17:44,457 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post39 could not be translated [2023-11-29 01:17:44,463 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.11 01:17:44 BasicIcfg [2023-11-29 01:17:44,463 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-29 01:17:44,464 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-29 01:17:44,464 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-29 01:17:44,464 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-29 01:17:44,464 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 01:17:43" (3/4) ... [2023-11-29 01:17:44,465 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2023-11-29 01:17:44,470 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~pre34 could not be translated [2023-11-29 01:17:44,471 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post39 could not be translated [2023-11-29 01:17:44,499 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfc08b50-0816-49a6-8b9f-227cd46f2e74/bin/uautomizer-verify-BQ2R08f2Ya/witness.graphml [2023-11-29 01:17:44,499 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-29 01:17:44,500 INFO L158 Benchmark]: Toolchain (without parser) took 2583.43ms. Allocated memory was 142.6MB in the beginning and 172.0MB in the end (delta: 29.4MB). Free memory was 103.4MB in the beginning and 128.6MB in the end (delta: -25.2MB). Peak memory consumption was 5.8MB. Max. memory is 16.1GB. [2023-11-29 01:17:44,500 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 107.0MB. Free memory is still 58.5MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-29 01:17:44,501 INFO L158 Benchmark]: CACSL2BoogieTranslator took 566.86ms. Allocated memory is still 142.6MB. Free memory was 102.9MB in the beginning and 75.1MB in the end (delta: 27.8MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. [2023-11-29 01:17:44,501 INFO L158 Benchmark]: Boogie Procedure Inliner took 47.55ms. Allocated memory is still 142.6MB. Free memory was 75.1MB in the beginning and 73.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-29 01:17:44,502 INFO L158 Benchmark]: Boogie Preprocessor took 41.31ms. Allocated memory is still 142.6MB. Free memory was 73.0MB in the beginning and 70.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-29 01:17:44,502 INFO L158 Benchmark]: RCFGBuilder took 448.43ms. Allocated memory is still 142.6MB. Free memory was 70.9MB in the beginning and 107.9MB in the end (delta: -37.0MB). Peak memory consumption was 22.9MB. Max. memory is 16.1GB. [2023-11-29 01:17:44,503 INFO L158 Benchmark]: TraceAbstraction took 1437.57ms. Allocated memory was 142.6MB in the beginning and 172.0MB in the end (delta: 29.4MB). Free memory was 106.6MB in the beginning and 130.7MB in the end (delta: -24.2MB). Peak memory consumption was 3.9MB. Max. memory is 16.1GB. [2023-11-29 01:17:44,503 INFO L158 Benchmark]: Witness Printer took 35.13ms. Allocated memory is still 172.0MB. Free memory was 130.7MB in the beginning and 128.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-29 01:17:44,506 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 107.0MB. Free memory is still 58.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 566.86ms. Allocated memory is still 142.6MB. Free memory was 102.9MB in the beginning and 75.1MB in the end (delta: 27.8MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 47.55ms. Allocated memory is still 142.6MB. Free memory was 75.1MB in the beginning and 73.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 41.31ms. Allocated memory is still 142.6MB. Free memory was 73.0MB in the beginning and 70.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 448.43ms. Allocated memory is still 142.6MB. Free memory was 70.9MB in the beginning and 107.9MB in the end (delta: -37.0MB). Peak memory consumption was 22.9MB. Max. memory is 16.1GB. * TraceAbstraction took 1437.57ms. Allocated memory was 142.6MB in the beginning and 172.0MB in the end (delta: 29.4MB). Free memory was 106.6MB in the beginning and 130.7MB in the end (delta: -24.2MB). Peak memory consumption was 3.9MB. Max. memory is 16.1GB. * Witness Printer took 35.13ms. Allocated memory is still 172.0MB. Free memory was 130.7MB in the beginning and 128.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~pre34 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post39 could not be translated - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~pre34 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post39 could not be translated - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 944]: integer overflow possible integer overflow possible We found a FailurePath: [L928] 0 int glob; [L929] 0 pthread_mutex_t m = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; [L929] 0 pthread_mutex_t m = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; [L929] 0 pthread_mutex_t m = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; [L929] 0 pthread_mutex_t m = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; [L929] 0 pthread_mutex_t m = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; [L929] 0 pthread_mutex_t m = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; [L937] 0 int i = __VERIFIER_nondet_int(); [L938] 0 pthread_t id; [L939] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, ((void *)0)) VAL [arg={0:0}, glob=0, i=2147483647, id={2:0}, m={1:0}] [L941] COND TRUE 0 \read(i) VAL [arg={0:0}, glob=0, i=2147483647, id={2:0}, m={1:0}] [L944] 0 i++ VAL [arg={0:0}, glob=0, i=2147483647, id={2:0}, m={1:0}] - UnprovableResult [Line: 944]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 945]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 945]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 946]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 948]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 946]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 948]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 939]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - UnprovableResult [Line: 932]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 932]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 51 locations, 13 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 1.3s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 186 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 129 mSDsluCounter, 48 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 22 mSDsCounter, 24 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 330 IncrementalHoareTripleChecker+Invalid, 354 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 24 mSolverCounterUnsat, 26 mSDtfsCounter, 330 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=210occurred in iteration=4, InterpolantAutomatonStates: 19, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 36 NumberOfCodeBlocks, 36 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 23 ConstructedInterpolants, 0 QuantifiedInterpolants, 71 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2023-11-29 01:17:44,524 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfc08b50-0816-49a6-8b9f-227cd46f2e74/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(OVERFLOW)