./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/pthread-wmm/safe012_power.oepc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version cf1a7837 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_622713cf-f038-4204-b48d-92da53369038/bin/uautomizer-verify-uTZkv6EMXl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_622713cf-f038-4204-b48d-92da53369038/bin/uautomizer-verify-uTZkv6EMXl/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_622713cf-f038-4204-b48d-92da53369038/bin/uautomizer-verify-uTZkv6EMXl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_622713cf-f038-4204-b48d-92da53369038/bin/uautomizer-verify-uTZkv6EMXl/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-wmm/safe012_power.oepc.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_622713cf-f038-4204-b48d-92da53369038/bin/uautomizer-verify-uTZkv6EMXl/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_622713cf-f038-4204-b48d-92da53369038/bin/uautomizer-verify-uTZkv6EMXl --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash c0d36e1a5ffb179c1d1cdd78990789e54ced4be7c39ab7d274d26f9b2f26b935 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 02:08:40,626 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 02:08:40,693 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_622713cf-f038-4204-b48d-92da53369038/bin/uautomizer-verify-uTZkv6EMXl/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-11-12 02:08:40,699 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 02:08:40,699 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 02:08:40,725 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 02:08:40,726 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 02:08:40,726 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 02:08:40,727 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 02:08:40,728 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 02:08:40,729 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-12 02:08:40,730 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-12 02:08:40,730 INFO L153 SettingsManager]: * Use SBE=true [2023-11-12 02:08:40,731 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 02:08:40,732 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-12 02:08:40,732 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-12 02:08:40,733 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-12 02:08:40,733 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-12 02:08:40,734 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 02:08:40,735 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-12 02:08:40,735 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 02:08:40,736 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-12 02:08:40,737 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-12 02:08:40,737 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-12 02:08:40,738 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-12 02:08:40,739 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-12 02:08:40,739 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 02:08:40,740 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 02:08:40,740 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-12 02:08:40,741 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 02:08:40,742 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 02:08:40,743 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 02:08:40,743 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 02:08:40,744 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-12 02:08:40,744 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-12 02:08:40,744 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-12 02:08:40,745 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-12 02:08:40,745 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-12 02:08:40,745 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-12 02:08:40,745 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 02:08:40,746 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-12 02:08:40,746 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_622713cf-f038-4204-b48d-92da53369038/bin/uautomizer-verify-uTZkv6EMXl/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_622713cf-f038-4204-b48d-92da53369038/bin/uautomizer-verify-uTZkv6EMXl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c0d36e1a5ffb179c1d1cdd78990789e54ced4be7c39ab7d274d26f9b2f26b935 [2023-11-12 02:08:41,049 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 02:08:41,072 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 02:08:41,074 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 02:08:41,075 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 02:08:41,077 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 02:08:41,079 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_622713cf-f038-4204-b48d-92da53369038/bin/uautomizer-verify-uTZkv6EMXl/../../sv-benchmarks/c/pthread-wmm/safe012_power.oepc.i [2023-11-12 02:08:44,315 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 02:08:44,641 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 02:08:44,642 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_622713cf-f038-4204-b48d-92da53369038/sv-benchmarks/c/pthread-wmm/safe012_power.oepc.i [2023-11-12 02:08:44,671 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_622713cf-f038-4204-b48d-92da53369038/bin/uautomizer-verify-uTZkv6EMXl/data/720014ff4/66797f00a6e94526a40b73782a5832e4/FLAG8728e91a6 [2023-11-12 02:08:44,687 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_622713cf-f038-4204-b48d-92da53369038/bin/uautomizer-verify-uTZkv6EMXl/data/720014ff4/66797f00a6e94526a40b73782a5832e4 [2023-11-12 02:08:44,690 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 02:08:44,692 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 02:08:44,694 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 02:08:44,694 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 02:08:44,699 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 02:08:44,701 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:08:44" (1/1) ... [2023-11-12 02:08:44,703 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@15dd07d9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:08:44, skipping insertion in model container [2023-11-12 02:08:44,704 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:08:44" (1/1) ... [2023-11-12 02:08:44,778 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 02:08:45,253 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:08:45,267 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 02:08:45,368 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:08:45,410 WARN L672 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 02:08:45,410 WARN L672 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 02:08:45,418 INFO L206 MainTranslator]: Completed translation [2023-11-12 02:08:45,419 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:08:45 WrapperNode [2023-11-12 02:08:45,419 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 02:08:45,421 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 02:08:45,422 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 02:08:45,422 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 02:08:45,430 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:08:45" (1/1) ... [2023-11-12 02:08:45,470 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:08:45" (1/1) ... [2023-11-12 02:08:45,498 INFO L138 Inliner]: procedures = 176, calls = 70, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 140 [2023-11-12 02:08:45,498 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 02:08:45,499 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 02:08:45,499 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 02:08:45,499 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 02:08:45,510 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:08:45" (1/1) ... [2023-11-12 02:08:45,510 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:08:45" (1/1) ... [2023-11-12 02:08:45,514 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:08:45" (1/1) ... [2023-11-12 02:08:45,515 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:08:45" (1/1) ... [2023-11-12 02:08:45,525 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:08:45" (1/1) ... [2023-11-12 02:08:45,527 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:08:45" (1/1) ... [2023-11-12 02:08:45,531 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:08:45" (1/1) ... [2023-11-12 02:08:45,533 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:08:45" (1/1) ... [2023-11-12 02:08:45,538 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 02:08:45,539 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 02:08:45,539 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 02:08:45,540 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 02:08:45,540 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:08:45" (1/1) ... [2023-11-12 02:08:45,547 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 02:08:45,566 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_622713cf-f038-4204-b48d-92da53369038/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:08:45,579 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_622713cf-f038-4204-b48d-92da53369038/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-12 02:08:45,618 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_622713cf-f038-4204-b48d-92da53369038/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-12 02:08:45,631 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-12 02:08:45,631 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-12 02:08:45,632 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-12 02:08:45,632 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 02:08:45,632 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-12 02:08:45,633 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-12 02:08:45,633 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2023-11-12 02:08:45,634 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2023-11-12 02:08:45,634 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2023-11-12 02:08:45,634 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2023-11-12 02:08:45,634 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2023-11-12 02:08:45,635 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2023-11-12 02:08:45,636 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-12 02:08:45,637 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-12 02:08:45,637 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 02:08:45,638 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 02:08:45,639 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-12 02:08:45,862 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 02:08:45,864 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 02:08:46,347 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 02:08:46,721 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 02:08:46,722 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-12 02:08:46,727 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:08:46 BoogieIcfgContainer [2023-11-12 02:08:46,727 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 02:08:46,731 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-12 02:08:46,732 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-12 02:08:46,735 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-12 02:08:46,736 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 02:08:44" (1/3) ... [2023-11-12 02:08:46,737 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b6f3169 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 02:08:46, skipping insertion in model container [2023-11-12 02:08:46,738 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:08:45" (2/3) ... [2023-11-12 02:08:46,738 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b6f3169 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 02:08:46, skipping insertion in model container [2023-11-12 02:08:46,738 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:08:46" (3/3) ... [2023-11-12 02:08:46,741 INFO L112 eAbstractionObserver]: Analyzing ICFG safe012_power.oepc.i [2023-11-12 02:08:46,753 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-12 02:08:46,764 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-12 02:08:46,765 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2023-11-12 02:08:46,765 INFO L521 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-12 02:08:46,885 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-12 02:08:46,928 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 145 places, 138 transitions, 288 flow [2023-11-12 02:08:47,014 INFO L124 PetriNetUnfolderBase]: 3/135 cut-off events. [2023-11-12 02:08:47,016 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-12 02:08:47,022 INFO L83 FinitePrefix]: Finished finitePrefix Result has 145 conditions, 135 events. 3/135 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 77 event pairs, 0 based on Foata normal form. 0/126 useless extension candidates. Maximal degree in co-relation 80. Up to 2 conditions per place. [2023-11-12 02:08:47,023 INFO L82 GeneralOperation]: Start removeDead. Operand has 145 places, 138 transitions, 288 flow [2023-11-12 02:08:47,033 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 142 places, 135 transitions, 279 flow [2023-11-12 02:08:47,037 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-11-12 02:08:47,061 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 142 places, 135 transitions, 279 flow [2023-11-12 02:08:47,066 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 142 places, 135 transitions, 279 flow [2023-11-12 02:08:47,067 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 142 places, 135 transitions, 279 flow [2023-11-12 02:08:47,140 INFO L124 PetriNetUnfolderBase]: 3/135 cut-off events. [2023-11-12 02:08:47,140 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-12 02:08:47,143 INFO L83 FinitePrefix]: Finished finitePrefix Result has 145 conditions, 135 events. 3/135 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 77 event pairs, 0 based on Foata normal form. 0/126 useless extension candidates. Maximal degree in co-relation 80. Up to 2 conditions per place. [2023-11-12 02:08:47,147 INFO L119 LiptonReduction]: Number of co-enabled transitions 2602 [2023-11-12 02:08:59,119 INFO L134 LiptonReduction]: Checked pairs total: 8187 [2023-11-12 02:08:59,119 INFO L136 LiptonReduction]: Total number of compositions: 124 [2023-11-12 02:08:59,154 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-12 02:08:59,164 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;@6193f2e0, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-12 02:08:59,164 INFO L358 AbstractCegarLoop]: Starting to check reachability of 15 error locations. [2023-11-12 02:08:59,176 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-12 02:08:59,176 INFO L124 PetriNetUnfolderBase]: 0/6 cut-off events. [2023-11-12 02:08:59,176 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-12 02:08:59,177 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:08:59,178 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-11-12 02:08:59,178 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-11-12 02:08:59,190 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:08:59,190 INFO L85 PathProgramCache]: Analyzing trace with hash 731930864, now seen corresponding path program 1 times [2023-11-12 02:08:59,202 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:08:59,204 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1142637199] [2023-11-12 02:08:59,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:08:59,205 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:08:59,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:08:59,731 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:08:59,732 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:08:59,732 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1142637199] [2023-11-12 02:08:59,733 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1142637199] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:08:59,733 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:08:59,733 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-12 02:08:59,735 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1555316557] [2023-11-12 02:08:59,736 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:08:59,746 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 02:08:59,756 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:08:59,790 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 02:08:59,791 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 02:08:59,815 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 117 out of 262 [2023-11-12 02:08:59,821 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 25 transitions, 59 flow. Second operand has 3 states, 3 states have (on average 118.33333333333333) internal successors, (355), 3 states have internal predecessors, (355), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:08:59,821 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:08:59,821 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 117 of 262 [2023-11-12 02:08:59,822 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:09:00,243 INFO L124 PetriNetUnfolderBase]: 599/974 cut-off events. [2023-11-12 02:09:00,243 INFO L125 PetriNetUnfolderBase]: For 13/13 co-relation queries the response was YES. [2023-11-12 02:09:00,250 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1973 conditions, 974 events. 599/974 cut-off events. For 13/13 co-relation queries the response was YES. Maximal size of possible extension queue 86. Compared 4689 event pairs, 155 based on Foata normal form. 0/727 useless extension candidates. Maximal degree in co-relation 1962. Up to 821 conditions per place. [2023-11-12 02:09:00,260 INFO L140 encePairwiseOnDemand]: 252/262 looper letters, 32 selfloop transitions, 4 changer transitions 0/39 dead transitions. [2023-11-12 02:09:00,260 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 39 transitions, 165 flow [2023-11-12 02:09:00,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 02:09:00,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-12 02:09:00,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 393 transitions. [2023-11-12 02:09:00,287 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5 [2023-11-12 02:09:00,288 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 393 transitions. [2023-11-12 02:09:00,288 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 393 transitions. [2023-11-12 02:09:00,292 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:09:00,295 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 393 transitions. [2023-11-12 02:09:00,301 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 131.0) internal successors, (393), 3 states have internal predecessors, (393), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:09:00,309 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 262.0) internal successors, (1048), 4 states have internal predecessors, (1048), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:09:00,310 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 262.0) internal successors, (1048), 4 states have internal predecessors, (1048), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:09:00,313 INFO L175 Difference]: Start difference. First operand has 35 places, 25 transitions, 59 flow. Second operand 3 states and 393 transitions. [2023-11-12 02:09:00,314 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 39 transitions, 165 flow [2023-11-12 02:09:00,317 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 34 places, 39 transitions, 160 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-11-12 02:09:00,320 INFO L231 Difference]: Finished difference. Result has 35 places, 28 transitions, 92 flow [2023-11-12 02:09:00,322 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=262, PETRI_DIFFERENCE_MINUEND_FLOW=56, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=25, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=92, PETRI_PLACES=35, PETRI_TRANSITIONS=28} [2023-11-12 02:09:00,328 INFO L281 CegarLoopForPetriNet]: 35 programPoint places, 0 predicate places. [2023-11-12 02:09:00,328 INFO L495 AbstractCegarLoop]: Abstraction has has 35 places, 28 transitions, 92 flow [2023-11-12 02:09:00,329 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 118.33333333333333) internal successors, (355), 3 states have internal predecessors, (355), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:09:00,329 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:09:00,329 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:09:00,330 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-12 02:09:00,330 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-11-12 02:09:00,330 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:09:00,330 INFO L85 PathProgramCache]: Analyzing trace with hash 730348679, now seen corresponding path program 1 times [2023-11-12 02:09:00,331 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:09:00,331 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1634822493] [2023-11-12 02:09:00,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:09:00,331 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:09:00,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:09:00,538 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:09:00,539 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:09:00,539 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1634822493] [2023-11-12 02:09:00,540 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1634822493] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:09:00,540 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:09:00,540 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-12 02:09:00,540 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [304526637] [2023-11-12 02:09:00,541 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:09:00,542 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-12 02:09:00,543 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:09:00,543 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-12 02:09:00,544 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-12 02:09:00,553 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 117 out of 262 [2023-11-12 02:09:00,555 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 28 transitions, 92 flow. Second operand has 4 states, 4 states have (on average 119.0) internal successors, (476), 4 states have internal predecessors, (476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:09:00,555 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:09:00,555 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 117 of 262 [2023-11-12 02:09:00,555 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:09:00,913 INFO L124 PetriNetUnfolderBase]: 425/692 cut-off events. [2023-11-12 02:09:00,913 INFO L125 PetriNetUnfolderBase]: For 66/66 co-relation queries the response was YES. [2023-11-12 02:09:00,915 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1745 conditions, 692 events. 425/692 cut-off events. For 66/66 co-relation queries the response was YES. Maximal size of possible extension queue 52. Compared 2991 event pairs, 107 based on Foata normal form. 0/589 useless extension candidates. Maximal degree in co-relation 1734. Up to 538 conditions per place. [2023-11-12 02:09:00,921 INFO L140 encePairwiseOnDemand]: 255/262 looper letters, 29 selfloop transitions, 4 changer transitions 0/36 dead transitions. [2023-11-12 02:09:00,922 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 35 places, 36 transitions, 172 flow [2023-11-12 02:09:00,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-12 02:09:00,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-12 02:09:00,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 504 transitions. [2023-11-12 02:09:00,925 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.48091603053435117 [2023-11-12 02:09:00,926 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 504 transitions. [2023-11-12 02:09:00,926 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 504 transitions. [2023-11-12 02:09:00,927 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:09:00,927 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 504 transitions. [2023-11-12 02:09:00,929 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 126.0) internal successors, (504), 4 states have internal predecessors, (504), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:09:00,933 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 262.0) internal successors, (1310), 5 states have internal predecessors, (1310), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:09:00,934 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 262.0) internal successors, (1310), 5 states have internal predecessors, (1310), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:09:00,935 INFO L175 Difference]: Start difference. First operand has 35 places, 28 transitions, 92 flow. Second operand 4 states and 504 transitions. [2023-11-12 02:09:00,935 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 35 places, 36 transitions, 172 flow [2023-11-12 02:09:00,936 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 34 places, 36 transitions, 168 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-12 02:09:00,938 INFO L231 Difference]: Finished difference. Result has 34 places, 25 transitions, 84 flow [2023-11-12 02:09:00,938 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=262, PETRI_DIFFERENCE_MINUEND_FLOW=76, PETRI_DIFFERENCE_MINUEND_PLACES=31, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=25, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=84, PETRI_PLACES=34, PETRI_TRANSITIONS=25} [2023-11-12 02:09:00,939 INFO L281 CegarLoopForPetriNet]: 35 programPoint places, -1 predicate places. [2023-11-12 02:09:00,940 INFO L495 AbstractCegarLoop]: Abstraction has has 34 places, 25 transitions, 84 flow [2023-11-12 02:09:00,941 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 119.0) internal successors, (476), 4 states have internal predecessors, (476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:09:00,941 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:09:00,941 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:09:00,941 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-12 02:09:00,942 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-11-12 02:09:00,942 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:09:00,943 INFO L85 PathProgramCache]: Analyzing trace with hash 730499340, now seen corresponding path program 1 times [2023-11-12 02:09:00,943 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:09:00,943 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1573820831] [2023-11-12 02:09:00,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:09:00,944 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:09:00,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:09:01,141 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:09:01,141 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:09:01,142 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1573820831] [2023-11-12 02:09:01,142 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1573820831] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:09:01,142 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:09:01,143 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-12 02:09:01,143 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [868332131] [2023-11-12 02:09:01,143 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:09:01,144 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-12 02:09:01,144 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:09:01,145 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-12 02:09:01,145 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-12 02:09:01,160 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 117 out of 262 [2023-11-12 02:09:01,161 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 25 transitions, 84 flow. Second operand has 4 states, 4 states have (on average 119.0) internal successors, (476), 4 states have internal predecessors, (476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:09:01,161 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:09:01,162 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 117 of 262 [2023-11-12 02:09:01,162 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:09:01,473 INFO L124 PetriNetUnfolderBase]: 302/497 cut-off events. [2023-11-12 02:09:01,473 INFO L125 PetriNetUnfolderBase]: For 206/206 co-relation queries the response was YES. [2023-11-12 02:09:01,474 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1244 conditions, 497 events. 302/497 cut-off events. For 206/206 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 1923 event pairs, 79 based on Foata normal form. 0/478 useless extension candidates. Maximal degree in co-relation 1232. Up to 208 conditions per place. [2023-11-12 02:09:01,478 INFO L140 encePairwiseOnDemand]: 255/262 looper letters, 35 selfloop transitions, 7 changer transitions 3/48 dead transitions. [2023-11-12 02:09:01,479 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 48 transitions, 232 flow [2023-11-12 02:09:01,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-12 02:09:01,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-12 02:09:01,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 516 transitions. [2023-11-12 02:09:01,482 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.49236641221374045 [2023-11-12 02:09:01,483 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 516 transitions. [2023-11-12 02:09:01,483 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 516 transitions. [2023-11-12 02:09:01,484 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:09:01,484 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 516 transitions. [2023-11-12 02:09:01,486 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 129.0) internal successors, (516), 4 states have internal predecessors, (516), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:09:01,490 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 262.0) internal successors, (1310), 5 states have internal predecessors, (1310), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:09:01,491 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 262.0) internal successors, (1310), 5 states have internal predecessors, (1310), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:09:01,491 INFO L175 Difference]: Start difference. First operand has 34 places, 25 transitions, 84 flow. Second operand 4 states and 516 transitions. [2023-11-12 02:09:01,492 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 48 transitions, 232 flow [2023-11-12 02:09:01,495 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 48 transitions, 227 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-12 02:09:01,496 INFO L231 Difference]: Finished difference. Result has 36 places, 25 transitions, 105 flow [2023-11-12 02:09:01,496 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=262, PETRI_DIFFERENCE_MINUEND_FLOW=79, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=25, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=18, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=105, PETRI_PLACES=36, PETRI_TRANSITIONS=25} [2023-11-12 02:09:01,498 INFO L281 CegarLoopForPetriNet]: 35 programPoint places, 1 predicate places. [2023-11-12 02:09:01,498 INFO L495 AbstractCegarLoop]: Abstraction has has 36 places, 25 transitions, 105 flow [2023-11-12 02:09:01,499 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 119.0) internal successors, (476), 4 states have internal predecessors, (476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:09:01,499 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:09:01,499 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:09:01,500 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-12 02:09:01,505 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-11-12 02:09:01,506 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:09:01,506 INFO L85 PathProgramCache]: Analyzing trace with hash 1399888472, now seen corresponding path program 1 times [2023-11-12 02:09:01,506 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:09:01,507 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1852142686] [2023-11-12 02:09:01,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:09:01,507 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:09:01,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:09:01,814 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:09:01,814 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:09:01,815 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1852142686] [2023-11-12 02:09:01,815 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1852142686] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:09:01,815 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:09:01,815 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-12 02:09:01,816 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [887915845] [2023-11-12 02:09:01,816 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:09:01,817 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-12 02:09:01,817 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:09:01,819 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-12 02:09:01,821 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-11-12 02:09:01,841 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 117 out of 262 [2023-11-12 02:09:01,842 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 25 transitions, 105 flow. Second operand has 5 states, 5 states have (on average 119.6) internal successors, (598), 5 states have internal predecessors, (598), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:09:01,843 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:09:01,843 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 117 of 262 [2023-11-12 02:09:01,843 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:09:02,132 INFO L124 PetriNetUnfolderBase]: 282/461 cut-off events. [2023-11-12 02:09:02,132 INFO L125 PetriNetUnfolderBase]: For 420/420 co-relation queries the response was YES. [2023-11-12 02:09:02,134 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1343 conditions, 461 events. 282/461 cut-off events. For 420/420 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 1799 event pairs, 79 based on Foata normal form. 12/466 useless extension candidates. Maximal degree in co-relation 1330. Up to 208 conditions per place. [2023-11-12 02:09:02,135 INFO L140 encePairwiseOnDemand]: 255/262 looper letters, 0 selfloop transitions, 0 changer transitions 42/42 dead transitions. [2023-11-12 02:09:02,136 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 42 transitions, 211 flow [2023-11-12 02:09:02,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-12 02:09:02,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-11-12 02:09:02,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 627 transitions. [2023-11-12 02:09:02,140 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.47862595419847326 [2023-11-12 02:09:02,140 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 627 transitions. [2023-11-12 02:09:02,140 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 627 transitions. [2023-11-12 02:09:02,141 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:09:02,141 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 627 transitions. [2023-11-12 02:09:02,144 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 125.4) internal successors, (627), 5 states have internal predecessors, (627), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:09:02,148 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 262.0) internal successors, (1572), 6 states have internal predecessors, (1572), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:09:02,150 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 262.0) internal successors, (1572), 6 states have internal predecessors, (1572), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:09:02,150 INFO L175 Difference]: Start difference. First operand has 36 places, 25 transitions, 105 flow. Second operand 5 states and 627 transitions. [2023-11-12 02:09:02,150 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 42 transitions, 211 flow [2023-11-12 02:09:02,153 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 33 places, 42 transitions, 187 flow, removed 3 selfloop flow, removed 4 redundant places. [2023-11-12 02:09:02,154 INFO L231 Difference]: Finished difference. Result has 33 places, 0 transitions, 0 flow [2023-11-12 02:09:02,154 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=262, PETRI_DIFFERENCE_MINUEND_FLOW=63, PETRI_DIFFERENCE_MINUEND_PLACES=29, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=0, PETRI_PLACES=33, PETRI_TRANSITIONS=0} [2023-11-12 02:09:02,155 INFO L281 CegarLoopForPetriNet]: 35 programPoint places, -2 predicate places. [2023-11-12 02:09:02,156 INFO L495 AbstractCegarLoop]: Abstraction has has 33 places, 0 transitions, 0 flow [2023-11-12 02:09:02,156 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 119.6) internal successors, (598), 5 states have internal predecessors, (598), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:09:02,160 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 15 remaining) [2023-11-12 02:09:02,161 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 15 remaining) [2023-11-12 02:09:02,161 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 15 remaining) [2023-11-12 02:09:02,161 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 15 remaining) [2023-11-12 02:09:02,162 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 15 remaining) [2023-11-12 02:09:02,162 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 15 remaining) [2023-11-12 02:09:02,162 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 15 remaining) [2023-11-12 02:09:02,162 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (7 of 15 remaining) [2023-11-12 02:09:02,163 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 15 remaining) [2023-11-12 02:09:02,163 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 15 remaining) [2023-11-12 02:09:02,163 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 15 remaining) [2023-11-12 02:09:02,163 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 15 remaining) [2023-11-12 02:09:02,164 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 15 remaining) [2023-11-12 02:09:02,164 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 15 remaining) [2023-11-12 02:09:02,164 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 15 remaining) [2023-11-12 02:09:02,165 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-12 02:09:02,165 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2023-11-12 02:09:02,172 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-12 02:09:02,172 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-11-12 02:09:02,177 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.11 02:09:02 BasicIcfg [2023-11-12 02:09:02,178 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-12 02:09:02,179 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-12 02:09:02,179 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-12 02:09:02,179 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-12 02:09:02,180 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:08:46" (3/4) ... [2023-11-12 02:09:02,182 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-12 02:09:02,186 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2023-11-12 02:09:02,186 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2023-11-12 02:09:02,186 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2023-11-12 02:09:02,195 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 35 nodes and edges [2023-11-12 02:09:02,197 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2023-11-12 02:09:02,198 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2023-11-12 02:09:02,198 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-12 02:09:02,326 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_622713cf-f038-4204-b48d-92da53369038/bin/uautomizer-verify-uTZkv6EMXl/witness.graphml [2023-11-12 02:09:02,327 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_622713cf-f038-4204-b48d-92da53369038/bin/uautomizer-verify-uTZkv6EMXl/witness.yml [2023-11-12 02:09:02,327 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-12 02:09:02,328 INFO L158 Benchmark]: Toolchain (without parser) took 17635.77ms. Allocated memory was 148.9MB in the beginning and 262.1MB in the end (delta: 113.2MB). Free memory was 104.4MB in the beginning and 112.6MB in the end (delta: -8.2MB). Peak memory consumption was 106.8MB. Max. memory is 16.1GB. [2023-11-12 02:09:02,328 INFO L158 Benchmark]: CDTParser took 0.33ms. Allocated memory is still 107.0MB. Free memory is still 56.6MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-12 02:09:02,328 INFO L158 Benchmark]: CACSL2BoogieTranslator took 726.02ms. Allocated memory is still 148.9MB. Free memory was 104.0MB in the beginning and 80.2MB in the end (delta: 23.8MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2023-11-12 02:09:02,329 INFO L158 Benchmark]: Boogie Procedure Inliner took 77.77ms. Allocated memory is still 148.9MB. Free memory was 80.2MB in the beginning and 119.0MB in the end (delta: -38.7MB). Peak memory consumption was 7.1MB. Max. memory is 16.1GB. [2023-11-12 02:09:02,329 INFO L158 Benchmark]: Boogie Preprocessor took 39.31ms. Allocated memory is still 148.9MB. Free memory was 119.0MB in the beginning and 116.1MB in the end (delta: 2.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-12 02:09:02,329 INFO L158 Benchmark]: RCFGBuilder took 1188.17ms. Allocated memory is still 148.9MB. Free memory was 116.1MB in the beginning and 115.2MB in the end (delta: 886.7kB). Peak memory consumption was 69.2MB. Max. memory is 16.1GB. [2023-11-12 02:09:02,330 INFO L158 Benchmark]: TraceAbstraction took 15446.54ms. Allocated memory was 148.9MB in the beginning and 262.1MB in the end (delta: 113.2MB). Free memory was 114.2MB in the beginning and 118.9MB in the end (delta: -4.8MB). Peak memory consumption was 108.4MB. Max. memory is 16.1GB. [2023-11-12 02:09:02,330 INFO L158 Benchmark]: Witness Printer took 148.33ms. Allocated memory is still 262.1MB. Free memory was 118.9MB in the beginning and 112.6MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-11-12 02:09:02,332 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33ms. Allocated memory is still 107.0MB. Free memory is still 56.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 726.02ms. Allocated memory is still 148.9MB. Free memory was 104.0MB in the beginning and 80.2MB in the end (delta: 23.8MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 77.77ms. Allocated memory is still 148.9MB. Free memory was 80.2MB in the beginning and 119.0MB in the end (delta: -38.7MB). Peak memory consumption was 7.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 39.31ms. Allocated memory is still 148.9MB. Free memory was 119.0MB in the beginning and 116.1MB in the end (delta: 2.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 1188.17ms. Allocated memory is still 148.9MB. Free memory was 116.1MB in the beginning and 115.2MB in the end (delta: 886.7kB). Peak memory consumption was 69.2MB. Max. memory is 16.1GB. * TraceAbstraction took 15446.54ms. Allocated memory was 148.9MB in the beginning and 262.1MB in the end (delta: 113.2MB). Free memory was 114.2MB in the beginning and 118.9MB in the end (delta: -4.8MB). Peak memory consumption was 108.4MB. Max. memory is 16.1GB. * Witness Printer took 148.33ms. Allocated memory is still 262.1MB. Free memory was 118.9MB in the beginning and 112.6MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 12.1s, 142 PlacesBefore, 35 PlacesAfterwards, 135 TransitionsBefore, 25 TransitionsAfterwards, 2602 CoEnabledTransitionPairs, 8 FixpointIterations, 57 TrivialSequentialCompositions, 52 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 12 ConcurrentYvCompositions, 3 ChoiceCompositions, 124 TotalNumberOfCompositions, 8187 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 3352, independent: 3075, independent conditional: 0, independent unconditional: 3075, dependent: 277, dependent conditional: 0, dependent unconditional: 277, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1405, independent: 1358, independent conditional: 0, independent unconditional: 1358, dependent: 47, dependent conditional: 0, dependent unconditional: 47, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 3352, independent: 1717, independent conditional: 0, independent unconditional: 1717, dependent: 230, dependent conditional: 0, dependent unconditional: 230, unknown: 1405, unknown conditional: 0, unknown unconditional: 1405] , Statistics on independence cache: Total cache size (in pairs): 115, Positive cache size: 98, Positive conditional cache size: 0, Positive unconditional cache size: 98, Negative cache size: 17, Negative conditional cache size: 0, Negative unconditional cache size: 17, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 787]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 787]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 802]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 802]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 822]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 822]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 167 locations, 15 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: 15.2s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 12.2s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 129 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 108 mSDsluCounter, 10 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 33 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 218 IncrementalHoareTripleChecker+Invalid, 251 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 33 mSolverCounterUnsat, 10 mSDtfsCounter, 218 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 8 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=105occurred in iteration=3, InterpolantAutomatonStates: 16, 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, 0.2s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 41 NumberOfCodeBlocks, 41 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 37 ConstructedInterpolants, 0 QuantifiedInterpolants, 111 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 - AllSpecificationsHoldResult: All specifications hold 6 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-11-12 02:09:02,358 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_622713cf-f038-4204-b48d-92da53369038/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE