./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/pthread-wmm/rfi005.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version e7bb482b 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_b8c305c2-1f67-4580-b526-44ecb7c3b522/bin/uautomizer-verify-WvqO1wxjHP/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8c305c2-1f67-4580-b526-44ecb7c3b522/bin/uautomizer-verify-WvqO1wxjHP/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8c305c2-1f67-4580-b526-44ecb7c3b522/bin/uautomizer-verify-WvqO1wxjHP/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8c305c2-1f67-4580-b526-44ecb7c3b522/bin/uautomizer-verify-WvqO1wxjHP/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-wmm/rfi005.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8c305c2-1f67-4580-b526-44ecb7c3b522/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8c305c2-1f67-4580-b526-44ecb7c3b522/bin/uautomizer-verify-WvqO1wxjHP --witnessprinter.witness.filename witness.graphml --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 0f51f8e84e29dbf7268818c0bd5364f23c52e80cf2778700bc9afe3da3c44b42 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-e7bb482 [2023-11-06 21:55:01,645 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-06 21:55:01,736 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8c305c2-1f67-4580-b526-44ecb7c3b522/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-11-06 21:55:01,741 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-06 21:55:01,741 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-06 21:55:01,811 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-06 21:55:01,812 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-06 21:55:01,812 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-06 21:55:01,813 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-06 21:55:01,814 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-06 21:55:01,815 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-06 21:55:01,816 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-06 21:55:01,816 INFO L153 SettingsManager]: * Use SBE=true [2023-11-06 21:55:01,817 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-06 21:55:01,818 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-06 21:55:01,818 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-06 21:55:01,819 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-06 21:55:01,819 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-06 21:55:01,820 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-06 21:55:01,821 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-06 21:55:01,821 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-06 21:55:01,822 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-06 21:55:01,822 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-06 21:55:01,823 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-06 21:55:01,823 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-06 21:55:01,824 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-06 21:55:01,824 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-06 21:55:01,825 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-06 21:55:01,825 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-06 21:55:01,826 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-06 21:55:01,826 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 21:55:01,827 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-06 21:55:01,827 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-06 21:55:01,827 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-11-06 21:55:01,828 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-06 21:55:01,828 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-06 21:55:01,828 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-06 21:55:01,828 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-06 21:55:01,829 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-06 21:55:01,829 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-06 21:55:01,829 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-06 21:55:01,830 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_b8c305c2-1f67-4580-b526-44ecb7c3b522/bin/uautomizer-verify-WvqO1wxjHP/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8c305c2-1f67-4580-b526-44ecb7c3b522/bin/uautomizer-verify-WvqO1wxjHP Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0f51f8e84e29dbf7268818c0bd5364f23c52e80cf2778700bc9afe3da3c44b42 [2023-11-06 21:55:02,094 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-06 21:55:02,137 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-06 21:55:02,140 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-06 21:55:02,142 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-06 21:55:02,143 INFO L274 PluginConnector]: CDTParser initialized [2023-11-06 21:55:02,144 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8c305c2-1f67-4580-b526-44ecb7c3b522/bin/uautomizer-verify-WvqO1wxjHP/../../sv-benchmarks/c/pthread-wmm/rfi005.i [2023-11-06 21:55:05,241 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-06 21:55:05,554 INFO L384 CDTParser]: Found 1 translation units. [2023-11-06 21:55:05,555 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8c305c2-1f67-4580-b526-44ecb7c3b522/sv-benchmarks/c/pthread-wmm/rfi005.i [2023-11-06 21:55:05,590 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8c305c2-1f67-4580-b526-44ecb7c3b522/bin/uautomizer-verify-WvqO1wxjHP/data/109ee3afa/488af2f7f88e4a0cad745f3849d55185/FLAG6c4a79173 [2023-11-06 21:55:05,604 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8c305c2-1f67-4580-b526-44ecb7c3b522/bin/uautomizer-verify-WvqO1wxjHP/data/109ee3afa/488af2f7f88e4a0cad745f3849d55185 [2023-11-06 21:55:05,607 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-06 21:55:05,608 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-06 21:55:05,610 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-06 21:55:05,610 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-06 21:55:05,616 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-06 21:55:05,616 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 09:55:05" (1/1) ... [2023-11-06 21:55:05,617 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@26cbdd8e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:55:05, skipping insertion in model container [2023-11-06 21:55:05,617 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 09:55:05" (1/1) ... [2023-11-06 21:55:05,704 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 21:55:06,186 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 21:55:06,210 INFO L202 MainTranslator]: Completed pre-run [2023-11-06 21:55:06,280 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 21:55:06,316 WARN L672 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 21:55:06,316 WARN L672 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 21:55:06,324 INFO L206 MainTranslator]: Completed translation [2023-11-06 21:55:06,325 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:55:06 WrapperNode [2023-11-06 21:55:06,325 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-06 21:55:06,326 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-06 21:55:06,327 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-06 21:55:06,327 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-06 21:55:06,335 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:55:06" (1/1) ... [2023-11-06 21:55:06,353 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:55:06" (1/1) ... [2023-11-06 21:55:06,398 INFO L138 Inliner]: procedures = 175, calls = 49, calls flagged for inlining = 7, calls inlined = 9, statements flattened = 178 [2023-11-06 21:55:06,401 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-06 21:55:06,402 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-06 21:55:06,402 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-06 21:55:06,407 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-06 21:55:06,420 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:55:06" (1/1) ... [2023-11-06 21:55:06,420 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:55:06" (1/1) ... [2023-11-06 21:55:06,428 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:55:06" (1/1) ... [2023-11-06 21:55:06,429 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:55:06" (1/1) ... [2023-11-06 21:55:06,444 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:55:06" (1/1) ... [2023-11-06 21:55:06,466 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:55:06" (1/1) ... [2023-11-06 21:55:06,469 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:55:06" (1/1) ... [2023-11-06 21:55:06,472 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:55:06" (1/1) ... [2023-11-06 21:55:06,476 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-06 21:55:06,477 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-06 21:55:06,477 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-06 21:55:06,477 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-06 21:55:06,478 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:55:06" (1/1) ... [2023-11-06 21:55:06,494 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 21:55:06,507 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8c305c2-1f67-4580-b526-44ecb7c3b522/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 21:55:06,527 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8c305c2-1f67-4580-b526-44ecb7c3b522/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-06 21:55:06,561 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8c305c2-1f67-4580-b526-44ecb7c3b522/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-06 21:55:06,572 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-06 21:55:06,572 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-06 21:55:06,572 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-06 21:55:06,572 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-06 21:55:06,573 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-06 21:55:06,574 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2023-11-06 21:55:06,574 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2023-11-06 21:55:06,574 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2023-11-06 21:55:06,574 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2023-11-06 21:55:06,575 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-06 21:55:06,575 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-06 21:55:06,575 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-06 21:55:06,577 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-06 21:55:06,579 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-06 21:55:06,758 INFO L236 CfgBuilder]: Building ICFG [2023-11-06 21:55:06,760 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-06 21:55:07,234 INFO L277 CfgBuilder]: Performing block encoding [2023-11-06 21:55:07,580 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-06 21:55:07,580 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-06 21:55:07,583 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 09:55:07 BoogieIcfgContainer [2023-11-06 21:55:07,584 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-06 21:55:07,587 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-06 21:55:07,587 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-06 21:55:07,591 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-06 21:55:07,591 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 09:55:05" (1/3) ... [2023-11-06 21:55:07,592 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4bf64124 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 09:55:07, skipping insertion in model container [2023-11-06 21:55:07,592 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:55:06" (2/3) ... [2023-11-06 21:55:07,594 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4bf64124 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 09:55:07, skipping insertion in model container [2023-11-06 21:55:07,595 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 09:55:07" (3/3) ... [2023-11-06 21:55:07,597 INFO L112 eAbstractionObserver]: Analyzing ICFG rfi005.i [2023-11-06 21:55:07,607 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-06 21:55:07,619 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-06 21:55:07,620 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2023-11-06 21:55:07,620 INFO L519 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-06 21:55:07,691 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-06 21:55:07,742 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 104 places, 100 transitions, 208 flow [2023-11-06 21:55:07,813 INFO L124 PetriNetUnfolderBase]: 3/98 cut-off events. [2023-11-06 21:55:07,813 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-06 21:55:07,819 INFO L83 FinitePrefix]: Finished finitePrefix Result has 105 conditions, 98 events. 3/98 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 65 event pairs, 0 based on Foata normal form. 0/91 useless extension candidates. Maximal degree in co-relation 63. Up to 2 conditions per place. [2023-11-06 21:55:07,820 INFO L82 GeneralOperation]: Start removeDead. Operand has 104 places, 100 transitions, 208 flow [2023-11-06 21:55:07,826 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 102 places, 98 transitions, 202 flow [2023-11-06 21:55:07,830 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-11-06 21:55:07,848 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 102 places, 98 transitions, 202 flow [2023-11-06 21:55:07,855 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 102 places, 98 transitions, 202 flow [2023-11-06 21:55:07,856 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 102 places, 98 transitions, 202 flow [2023-11-06 21:55:07,893 INFO L124 PetriNetUnfolderBase]: 3/98 cut-off events. [2023-11-06 21:55:07,893 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-06 21:55:07,894 INFO L83 FinitePrefix]: Finished finitePrefix Result has 105 conditions, 98 events. 3/98 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 66 event pairs, 0 based on Foata normal form. 0/91 useless extension candidates. Maximal degree in co-relation 63. Up to 2 conditions per place. [2023-11-06 21:55:07,898 INFO L119 LiptonReduction]: Number of co-enabled transitions 1618 [2023-11-06 21:55:11,971 INFO L134 LiptonReduction]: Checked pairs total: 5461 [2023-11-06 21:55:11,971 INFO L136 LiptonReduction]: Total number of compositions: 89 [2023-11-06 21:55:11,994 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-06 21:55:12,001 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=LoopsAndPotentialCycles, 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;@4eca118e, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-06 21:55:12,001 INFO L358 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2023-11-06 21:55:12,007 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-06 21:55:12,007 INFO L124 PetriNetUnfolderBase]: 0/6 cut-off events. [2023-11-06 21:55:12,007 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-06 21:55:12,007 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 21:55:12,008 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-11-06 21:55:12,009 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2023-11-06 21:55:12,015 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:55:12,015 INFO L85 PathProgramCache]: Analyzing trace with hash 555502064, now seen corresponding path program 1 times [2023-11-06 21:55:12,025 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 21:55:12,026 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [124651732] [2023-11-06 21:55:12,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:55:12,027 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 21:55:12,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:55:12,425 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 21:55:12,426 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 21:55:12,427 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [124651732] [2023-11-06 21:55:12,427 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [124651732] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 21:55:12,428 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 21:55:12,428 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-06 21:55:12,429 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1750922915] [2023-11-06 21:55:12,430 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 21:55:12,439 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 21:55:12,445 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 21:55:12,468 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 21:55:12,469 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 21:55:12,489 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 80 out of 189 [2023-11-06 21:55:12,492 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 29 places, 23 transitions, 52 flow. Second operand has 3 states, 3 states have (on average 81.66666666666667) internal successors, (245), 3 states have internal predecessors, (245), 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) [2023-11-06 21:55:12,493 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 21:55:12,493 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 80 of 189 [2023-11-06 21:55:12,494 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 21:55:12,649 INFO L124 PetriNetUnfolderBase]: 111/234 cut-off events. [2023-11-06 21:55:12,655 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-11-06 21:55:12,656 INFO L83 FinitePrefix]: Finished finitePrefix Result has 476 conditions, 234 events. 111/234 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 814 event pairs, 54 based on Foata normal form. 28/225 useless extension candidates. Maximal degree in co-relation 466. Up to 158 conditions per place. [2023-11-06 21:55:12,660 INFO L140 encePairwiseOnDemand]: 180/189 looper letters, 27 selfloop transitions, 3 changer transitions 2/33 dead transitions. [2023-11-06 21:55:12,661 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 31 places, 33 transitions, 139 flow [2023-11-06 21:55:12,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 21:55:12,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-06 21:55:12,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 279 transitions. [2023-11-06 21:55:12,687 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.49206349206349204 [2023-11-06 21:55:12,688 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 279 transitions. [2023-11-06 21:55:12,688 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 279 transitions. [2023-11-06 21:55:12,693 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 21:55:12,695 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 279 transitions. [2023-11-06 21:55:12,701 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 93.0) internal successors, (279), 3 states have internal predecessors, (279), 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) [2023-11-06 21:55:12,706 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 189.0) internal successors, (756), 4 states have internal predecessors, (756), 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) [2023-11-06 21:55:12,707 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 189.0) internal successors, (756), 4 states have internal predecessors, (756), 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) [2023-11-06 21:55:12,709 INFO L175 Difference]: Start difference. First operand has 29 places, 23 transitions, 52 flow. Second operand 3 states and 279 transitions. [2023-11-06 21:55:12,710 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 31 places, 33 transitions, 139 flow [2023-11-06 21:55:12,713 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 29 places, 33 transitions, 136 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-06 21:55:12,715 INFO L231 Difference]: Finished difference. Result has 30 places, 22 transitions, 67 flow [2023-11-06 21:55:12,717 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=189, PETRI_DIFFERENCE_MINUEND_FLOW=48, PETRI_DIFFERENCE_MINUEND_PLACES=27, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=67, PETRI_PLACES=30, PETRI_TRANSITIONS=22} [2023-11-06 21:55:12,722 INFO L281 CegarLoopForPetriNet]: 29 programPoint places, 1 predicate places. [2023-11-06 21:55:12,722 INFO L495 AbstractCegarLoop]: Abstraction has has 30 places, 22 transitions, 67 flow [2023-11-06 21:55:12,723 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 81.66666666666667) internal successors, (245), 3 states have internal predecessors, (245), 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) [2023-11-06 21:55:12,723 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 21:55:12,723 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 21:55:12,723 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-06 21:55:12,724 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2023-11-06 21:55:12,734 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:55:12,734 INFO L85 PathProgramCache]: Analyzing trace with hash -462391410, now seen corresponding path program 1 times [2023-11-06 21:55:12,734 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 21:55:12,735 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1282185386] [2023-11-06 21:55:12,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:55:12,735 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 21:55:12,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:55:13,040 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 21:55:13,041 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 21:55:13,041 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1282185386] [2023-11-06 21:55:13,042 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1282185386] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 21:55:13,042 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 21:55:13,042 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 21:55:13,042 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1205960874] [2023-11-06 21:55:13,043 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 21:55:13,044 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-06 21:55:13,044 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 21:55:13,045 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-06 21:55:13,046 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-06 21:55:13,059 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 80 out of 189 [2023-11-06 21:55:13,060 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 30 places, 22 transitions, 67 flow. Second operand has 4 states, 4 states have (on average 83.0) internal successors, (332), 4 states have internal predecessors, (332), 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) [2023-11-06 21:55:13,060 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 21:55:13,060 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 80 of 189 [2023-11-06 21:55:13,061 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 21:55:13,219 INFO L124 PetriNetUnfolderBase]: 90/195 cut-off events. [2023-11-06 21:55:13,219 INFO L125 PetriNetUnfolderBase]: For 15/15 co-relation queries the response was YES. [2023-11-06 21:55:13,224 INFO L83 FinitePrefix]: Finished finitePrefix Result has 457 conditions, 195 events. 90/195 cut-off events. For 15/15 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 651 event pairs, 42 based on Foata normal form. 0/195 useless extension candidates. Maximal degree in co-relation 446. Up to 118 conditions per place. [2023-11-06 21:55:13,228 INFO L140 encePairwiseOnDemand]: 184/189 looper letters, 25 selfloop transitions, 3 changer transitions 0/29 dead transitions. [2023-11-06 21:55:13,229 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 31 places, 29 transitions, 135 flow [2023-11-06 21:55:13,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-06 21:55:13,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-06 21:55:13,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 350 transitions. [2023-11-06 21:55:13,233 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.46296296296296297 [2023-11-06 21:55:13,233 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 350 transitions. [2023-11-06 21:55:13,233 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 350 transitions. [2023-11-06 21:55:13,234 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 21:55:13,234 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 350 transitions. [2023-11-06 21:55:13,236 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 87.5) internal successors, (350), 4 states have internal predecessors, (350), 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) [2023-11-06 21:55:13,241 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 189.0) internal successors, (945), 5 states have internal predecessors, (945), 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) [2023-11-06 21:55:13,245 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 189.0) internal successors, (945), 5 states have internal predecessors, (945), 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) [2023-11-06 21:55:13,246 INFO L175 Difference]: Start difference. First operand has 30 places, 22 transitions, 67 flow. Second operand 4 states and 350 transitions. [2023-11-06 21:55:13,246 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 31 places, 29 transitions, 135 flow [2023-11-06 21:55:13,247 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 30 places, 29 transitions, 132 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-06 21:55:13,249 INFO L231 Difference]: Finished difference. Result has 30 places, 20 transitions, 62 flow [2023-11-06 21:55:13,250 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=189, PETRI_DIFFERENCE_MINUEND_FLOW=56, PETRI_DIFFERENCE_MINUEND_PLACES=27, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=20, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=62, PETRI_PLACES=30, PETRI_TRANSITIONS=20} [2023-11-06 21:55:13,252 INFO L281 CegarLoopForPetriNet]: 29 programPoint places, 1 predicate places. [2023-11-06 21:55:13,252 INFO L495 AbstractCegarLoop]: Abstraction has has 30 places, 20 transitions, 62 flow [2023-11-06 21:55:13,253 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 83.0) internal successors, (332), 4 states have internal predecessors, (332), 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) [2023-11-06 21:55:13,260 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 21:55:13,261 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 21:55:13,261 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-06 21:55:13,261 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2023-11-06 21:55:13,262 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:55:13,262 INFO L85 PathProgramCache]: Analyzing trace with hash -462391409, now seen corresponding path program 1 times [2023-11-06 21:55:13,262 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 21:55:13,262 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1949796558] [2023-11-06 21:55:13,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:55:13,262 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 21:55:13,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:55:13,380 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 21:55:13,380 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 21:55:13,380 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1949796558] [2023-11-06 21:55:13,381 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1949796558] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 21:55:13,381 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 21:55:13,381 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 21:55:13,381 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [150836303] [2023-11-06 21:55:13,381 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 21:55:13,382 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-06 21:55:13,382 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 21:55:13,383 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-06 21:55:13,383 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-06 21:55:13,397 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 80 out of 189 [2023-11-06 21:55:13,397 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 30 places, 20 transitions, 62 flow. Second operand has 4 states, 4 states have (on average 83.0) internal successors, (332), 4 states have internal predecessors, (332), 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) [2023-11-06 21:55:13,397 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 21:55:13,398 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 80 of 189 [2023-11-06 21:55:13,398 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 21:55:13,494 INFO L124 PetriNetUnfolderBase]: 56/117 cut-off events. [2023-11-06 21:55:13,494 INFO L125 PetriNetUnfolderBase]: For 36/36 co-relation queries the response was YES. [2023-11-06 21:55:13,494 INFO L83 FinitePrefix]: Finished finitePrefix Result has 280 conditions, 117 events. 56/117 cut-off events. For 36/36 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 326 event pairs, 34 based on Foata normal form. 12/129 useless extension candidates. Maximal degree in co-relation 268. Up to 71 conditions per place. [2023-11-06 21:55:13,495 INFO L140 encePairwiseOnDemand]: 183/189 looper letters, 0 selfloop transitions, 0 changer transitions 23/23 dead transitions. [2023-11-06 21:55:13,495 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 27 places, 23 transitions, 108 flow [2023-11-06 21:55:13,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-06 21:55:13,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-06 21:55:13,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 345 transitions. [2023-11-06 21:55:13,498 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.45634920634920634 [2023-11-06 21:55:13,498 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 345 transitions. [2023-11-06 21:55:13,499 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 345 transitions. [2023-11-06 21:55:13,500 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 21:55:13,500 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 345 transitions. [2023-11-06 21:55:13,502 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 86.25) internal successors, (345), 4 states have internal predecessors, (345), 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) [2023-11-06 21:55:13,506 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 189.0) internal successors, (945), 5 states have internal predecessors, (945), 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) [2023-11-06 21:55:13,507 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 189.0) internal successors, (945), 5 states have internal predecessors, (945), 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) [2023-11-06 21:55:13,507 INFO L175 Difference]: Start difference. First operand has 30 places, 20 transitions, 62 flow. Second operand 4 states and 345 transitions. [2023-11-06 21:55:13,507 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 27 places, 23 transitions, 108 flow [2023-11-06 21:55:13,508 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 24 places, 23 transitions, 101 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-11-06 21:55:13,508 INFO L231 Difference]: Finished difference. Result has 24 places, 0 transitions, 0 flow [2023-11-06 21:55:13,508 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=189, PETRI_DIFFERENCE_MINUEND_FLOW=37, PETRI_DIFFERENCE_MINUEND_PLACES=21, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=14, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=14, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=0, PETRI_PLACES=24, PETRI_TRANSITIONS=0} [2023-11-06 21:55:13,509 INFO L281 CegarLoopForPetriNet]: 29 programPoint places, -5 predicate places. [2023-11-06 21:55:13,510 INFO L495 AbstractCegarLoop]: Abstraction has has 24 places, 0 transitions, 0 flow [2023-11-06 21:55:13,510 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 83.0) internal successors, (332), 4 states have internal predecessors, (332), 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) [2023-11-06 21:55:13,513 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 10 remaining) [2023-11-06 21:55:13,513 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 10 remaining) [2023-11-06 21:55:13,514 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 10 remaining) [2023-11-06 21:55:13,514 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 10 remaining) [2023-11-06 21:55:13,514 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (5 of 10 remaining) [2023-11-06 21:55:13,514 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 10 remaining) [2023-11-06 21:55:13,515 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 10 remaining) [2023-11-06 21:55:13,515 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 10 remaining) [2023-11-06 21:55:13,515 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 10 remaining) [2023-11-06 21:55:13,515 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 10 remaining) [2023-11-06 21:55:13,516 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-06 21:55:13,516 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2023-11-06 21:55:13,522 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-06 21:55:13,522 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-06 21:55:13,527 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.11 09:55:13 BasicIcfg [2023-11-06 21:55:13,527 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-06 21:55:13,528 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-06 21:55:13,528 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-06 21:55:13,528 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-06 21:55:13,528 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 09:55:07" (3/4) ... [2023-11-06 21:55:13,530 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-06 21:55:13,533 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2023-11-06 21:55:13,533 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2023-11-06 21:55:13,539 INFO L939 BoogieBacktranslator]: Reduced CFG by removing 28 nodes and edges [2023-11-06 21:55:13,540 INFO L939 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2023-11-06 21:55:13,540 INFO L939 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-11-06 21:55:13,541 INFO L939 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-06 21:55:13,625 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8c305c2-1f67-4580-b526-44ecb7c3b522/bin/uautomizer-verify-WvqO1wxjHP/witness.graphml.graphml [2023-11-06 21:55:13,625 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8c305c2-1f67-4580-b526-44ecb7c3b522/bin/uautomizer-verify-WvqO1wxjHP/witness.graphml.yaml [2023-11-06 21:55:13,625 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-06 21:55:13,626 INFO L158 Benchmark]: Toolchain (without parser) took 8017.63ms. Allocated memory was 151.0MB in the beginning and 184.5MB in the end (delta: 33.6MB). Free memory was 120.3MB in the beginning and 135.6MB in the end (delta: -15.3MB). Peak memory consumption was 20.3MB. Max. memory is 16.1GB. [2023-11-06 21:55:13,626 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 151.0MB. Free memory is still 111.7MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-06 21:55:13,627 INFO L158 Benchmark]: CACSL2BoogieTranslator took 715.85ms. Allocated memory is still 151.0MB. Free memory was 120.3MB in the beginning and 95.2MB in the end (delta: 25.1MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2023-11-06 21:55:13,627 INFO L158 Benchmark]: Boogie Procedure Inliner took 74.88ms. Allocated memory is still 151.0MB. Free memory was 95.2MB in the beginning and 92.2MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-06 21:55:13,627 INFO L158 Benchmark]: Boogie Preprocessor took 74.78ms. Allocated memory is still 151.0MB. Free memory was 92.2MB in the beginning and 90.0MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-06 21:55:13,628 INFO L158 Benchmark]: RCFGBuilder took 1106.99ms. Allocated memory is still 151.0MB. Free memory was 90.0MB in the beginning and 109.9MB in the end (delta: -19.9MB). Peak memory consumption was 49.1MB. Max. memory is 16.1GB. [2023-11-06 21:55:13,628 INFO L158 Benchmark]: TraceAbstraction took 5940.45ms. Allocated memory was 151.0MB in the beginning and 184.5MB in the end (delta: 33.6MB). Free memory was 109.2MB in the beginning and 138.7MB in the end (delta: -29.5MB). Peak memory consumption was 97.1MB. Max. memory is 16.1GB. [2023-11-06 21:55:13,628 INFO L158 Benchmark]: Witness Printer took 97.71ms. Allocated memory is still 184.5MB. Free memory was 138.7MB in the beginning and 135.6MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-06 21:55:13,631 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 151.0MB. Free memory is still 111.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 715.85ms. Allocated memory is still 151.0MB. Free memory was 120.3MB in the beginning and 95.2MB in the end (delta: 25.1MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 74.88ms. Allocated memory is still 151.0MB. Free memory was 95.2MB in the beginning and 92.2MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 74.78ms. Allocated memory is still 151.0MB. Free memory was 92.2MB in the beginning and 90.0MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1106.99ms. Allocated memory is still 151.0MB. Free memory was 90.0MB in the beginning and 109.9MB in the end (delta: -19.9MB). Peak memory consumption was 49.1MB. Max. memory is 16.1GB. * TraceAbstraction took 5940.45ms. Allocated memory was 151.0MB in the beginning and 184.5MB in the end (delta: 33.6MB). Free memory was 109.2MB in the beginning and 138.7MB in the end (delta: -29.5MB). Peak memory consumption was 97.1MB. Max. memory is 16.1GB. * Witness Printer took 97.71ms. Allocated memory is still 184.5MB. Free memory was 138.7MB in the beginning and 135.6MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 4.1s, 102 PlacesBefore, 29 PlacesAfterwards, 98 TransitionsBefore, 23 TransitionsAfterwards, 1618 CoEnabledTransitionPairs, 7 FixpointIterations, 35 TrivialSequentialCompositions, 41 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 11 ConcurrentYvCompositions, 2 ChoiceCompositions, 89 TotalNumberOfCompositions, 5461 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2516, independent: 2292, independent conditional: 0, independent unconditional: 2292, dependent: 224, dependent conditional: 0, dependent unconditional: 224, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 889, independent: 852, independent conditional: 0, independent unconditional: 852, dependent: 37, dependent conditional: 0, dependent unconditional: 37, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 2516, independent: 1440, independent conditional: 0, independent unconditional: 1440, dependent: 187, dependent conditional: 0, dependent unconditional: 187, unknown: 889, unknown conditional: 0, unknown unconditional: 889] , Statistics on independence cache: Total cache size (in pairs): 83, Positive cache size: 63, Positive conditional cache size: 0, Positive unconditional cache size: 63, Negative cache size: 20, Negative conditional cache size: 0, Negative unconditional cache size: 20, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 764]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 764]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 819]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 819]: 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 5 procedures, 121 locations, 10 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: 5.8s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 4.3s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 54 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 43 mSDsluCounter, 1 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 14 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 133 IncrementalHoareTripleChecker+Invalid, 147 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 14 mSolverCounterUnsat, 1 mSDtfsCounter, 133 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=67occurred in iteration=1, InterpolantAutomatonStates: 11, 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, 0.5s InterpolantComputationTime, 31 NumberOfCodeBlocks, 31 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 28 ConstructedInterpolants, 0 QuantifiedInterpolants, 84 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 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 4 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-11-06 21:55:13,665 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8c305c2-1f67-4580-b526-44ecb7c3b522/bin/uautomizer-verify-WvqO1wxjHP/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