./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/pthread-wmm/safe017_tso.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version b5237d83 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b71554f9-5f5c-4f37-8d12-4d468832091b/bin/uautomizer-vX5HgA9Q3a/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b71554f9-5f5c-4f37-8d12-4d468832091b/bin/uautomizer-vX5HgA9Q3a/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b71554f9-5f5c-4f37-8d12-4d468832091b/bin/uautomizer-vX5HgA9Q3a/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b71554f9-5f5c-4f37-8d12-4d468832091b/bin/uautomizer-vX5HgA9Q3a/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-wmm/safe017_tso.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b71554f9-5f5c-4f37-8d12-4d468832091b/bin/uautomizer-vX5HgA9Q3a/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b71554f9-5f5c-4f37-8d12-4d468832091b/bin/uautomizer-vX5HgA9Q3a --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 f42e8f5213d7b87505465b65029831bd75698bf771428502e6718d43723a660f --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-b5237d8 [2022-11-21 16:53:21,572 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-21 16:53:21,574 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-21 16:53:21,621 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-21 16:53:21,622 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-21 16:53:21,626 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-21 16:53:21,628 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-21 16:53:21,632 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-21 16:53:21,635 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-21 16:53:21,639 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-21 16:53:21,641 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-21 16:53:21,644 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-21 16:53:21,645 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-21 16:53:21,651 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-21 16:53:21,653 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-21 16:53:21,655 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-21 16:53:21,659 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-21 16:53:21,661 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-21 16:53:21,662 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-21 16:53:21,666 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-21 16:53:21,669 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-21 16:53:21,672 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-21 16:53:21,674 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-21 16:53:21,675 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-21 16:53:21,685 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-21 16:53:21,686 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-21 16:53:21,686 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-21 16:53:21,687 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-21 16:53:21,688 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-21 16:53:21,689 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-21 16:53:21,689 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-21 16:53:21,690 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-21 16:53:21,691 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-21 16:53:21,696 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-21 16:53:21,698 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-21 16:53:21,698 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-21 16:53:21,699 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-21 16:53:21,700 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-21 16:53:21,700 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-21 16:53:21,702 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-21 16:53:21,703 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-21 16:53:21,704 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b71554f9-5f5c-4f37-8d12-4d468832091b/bin/uautomizer-vX5HgA9Q3a/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-11-21 16:53:21,764 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-21 16:53:21,764 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-21 16:53:21,765 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-21 16:53:21,775 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-21 16:53:21,776 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-21 16:53:21,776 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-21 16:53:21,777 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-21 16:53:21,777 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-21 16:53:21,777 INFO L138 SettingsManager]: * Use SBE=true [2022-11-21 16:53:21,777 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-21 16:53:21,779 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-21 16:53:21,779 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-21 16:53:21,779 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-21 16:53:21,779 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-21 16:53:21,780 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-21 16:53:21,780 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-21 16:53:21,780 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-21 16:53:21,780 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-21 16:53:21,780 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-21 16:53:21,781 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-21 16:53:21,781 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-21 16:53:21,781 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-21 16:53:21,781 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-21 16:53:21,781 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-21 16:53:21,782 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-21 16:53:21,782 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-21 16:53:21,782 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 16:53:21,782 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-21 16:53:21,783 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-21 16:53:21,784 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-21 16:53:21,784 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-21 16:53:21,784 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-21 16:53:21,784 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-21 16:53:21,784 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-21 16:53:21,785 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-21 16:53:21,785 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_b71554f9-5f5c-4f37-8d12-4d468832091b/bin/uautomizer-vX5HgA9Q3a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b71554f9-5f5c-4f37-8d12-4d468832091b/bin/uautomizer-vX5HgA9Q3a Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f42e8f5213d7b87505465b65029831bd75698bf771428502e6718d43723a660f [2022-11-21 16:53:22,097 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-21 16:53:22,120 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-21 16:53:22,123 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-21 16:53:22,124 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-21 16:53:22,125 INFO L275 PluginConnector]: CDTParser initialized [2022-11-21 16:53:22,126 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b71554f9-5f5c-4f37-8d12-4d468832091b/bin/uautomizer-vX5HgA9Q3a/../../sv-benchmarks/c/pthread-wmm/safe017_tso.i [2022-11-21 16:53:25,350 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-21 16:53:25,625 INFO L351 CDTParser]: Found 1 translation units. [2022-11-21 16:53:25,631 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b71554f9-5f5c-4f37-8d12-4d468832091b/sv-benchmarks/c/pthread-wmm/safe017_tso.i [2022-11-21 16:53:25,648 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b71554f9-5f5c-4f37-8d12-4d468832091b/bin/uautomizer-vX5HgA9Q3a/data/f78929314/62f1de0418ad4d46bd1e1912f73f6064/FLAG031fd7cf7 [2022-11-21 16:53:25,663 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b71554f9-5f5c-4f37-8d12-4d468832091b/bin/uautomizer-vX5HgA9Q3a/data/f78929314/62f1de0418ad4d46bd1e1912f73f6064 [2022-11-21 16:53:25,665 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-21 16:53:25,667 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-21 16:53:25,669 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-21 16:53:25,669 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-21 16:53:25,673 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-21 16:53:25,674 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 04:53:25" (1/1) ... [2022-11-21 16:53:25,675 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4be4104a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:53:25, skipping insertion in model container [2022-11-21 16:53:25,676 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 04:53:25" (1/1) ... [2022-11-21 16:53:25,689 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-21 16:53:25,753 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-21 16:53:25,906 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b71554f9-5f5c-4f37-8d12-4d468832091b/sv-benchmarks/c/pthread-wmm/safe017_tso.i[945,958] [2022-11-21 16:53:26,148 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 16:53:26,164 INFO L203 MainTranslator]: Completed pre-run [2022-11-21 16:53:26,181 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b71554f9-5f5c-4f37-8d12-4d468832091b/sv-benchmarks/c/pthread-wmm/safe017_tso.i[945,958] [2022-11-21 16:53:26,242 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 16:53:26,303 INFO L208 MainTranslator]: Completed translation [2022-11-21 16:53:26,304 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:53:26 WrapperNode [2022-11-21 16:53:26,304 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-21 16:53:26,305 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-21 16:53:26,306 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-21 16:53:26,306 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-21 16:53:26,315 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:53:26" (1/1) ... [2022-11-21 16:53:26,346 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:53:26" (1/1) ... [2022-11-21 16:53:26,369 INFO L138 Inliner]: procedures = 176, calls = 51, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 69 [2022-11-21 16:53:26,369 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-21 16:53:26,370 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-21 16:53:26,370 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-21 16:53:26,370 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-21 16:53:26,381 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:53:26" (1/1) ... [2022-11-21 16:53:26,381 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:53:26" (1/1) ... [2022-11-21 16:53:26,384 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:53:26" (1/1) ... [2022-11-21 16:53:26,385 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:53:26" (1/1) ... [2022-11-21 16:53:26,391 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:53:26" (1/1) ... [2022-11-21 16:53:26,393 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:53:26" (1/1) ... [2022-11-21 16:53:26,395 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:53:26" (1/1) ... [2022-11-21 16:53:26,397 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:53:26" (1/1) ... [2022-11-21 16:53:26,415 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-21 16:53:26,419 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-21 16:53:26,425 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-21 16:53:26,425 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-21 16:53:26,427 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:53:26" (1/1) ... [2022-11-21 16:53:26,432 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 16:53:26,443 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b71554f9-5f5c-4f37-8d12-4d468832091b/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 16:53:26,456 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b71554f9-5f5c-4f37-8d12-4d468832091b/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-21 16:53:26,483 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b71554f9-5f5c-4f37-8d12-4d468832091b/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-21 16:53:26,512 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-21 16:53:26,512 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-21 16:53:26,513 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-21 16:53:26,513 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-21 16:53:26,513 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-21 16:53:26,513 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-11-21 16:53:26,513 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-11-21 16:53:26,514 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-11-21 16:53:26,514 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-11-21 16:53:26,514 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2022-11-21 16:53:26,514 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2022-11-21 16:53:26,515 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-21 16:53:26,515 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-21 16:53:26,515 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-21 16:53:26,515 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-21 16:53:26,517 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-21 16:53:26,693 INFO L235 CfgBuilder]: Building ICFG [2022-11-21 16:53:26,696 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-21 16:53:26,958 INFO L276 CfgBuilder]: Performing block encoding [2022-11-21 16:53:27,024 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-21 16:53:27,025 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-21 16:53:27,027 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 04:53:27 BoogieIcfgContainer [2022-11-21 16:53:27,027 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-21 16:53:27,034 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-21 16:53:27,034 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-21 16:53:27,038 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-21 16:53:27,038 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 04:53:25" (1/3) ... [2022-11-21 16:53:27,039 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68c800a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 04:53:27, skipping insertion in model container [2022-11-21 16:53:27,039 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:53:26" (2/3) ... [2022-11-21 16:53:27,039 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68c800a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 04:53:27, skipping insertion in model container [2022-11-21 16:53:27,040 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 04:53:27" (3/3) ... [2022-11-21 16:53:27,041 INFO L112 eAbstractionObserver]: Analyzing ICFG safe017_tso.i [2022-11-21 16:53:27,055 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-21 16:53:27,067 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-21 16:53:27,068 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2022-11-21 16:53:27,068 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-21 16:53:27,194 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-21 16:53:27,293 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 102 places, 94 transitions, 203 flow [2022-11-21 16:53:27,386 INFO L130 PetriNetUnfolder]: 2/91 cut-off events. [2022-11-21 16:53:27,387 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-21 16:53:27,392 INFO L83 FinitePrefix]: Finished finitePrefix Result has 101 conditions, 91 events. 2/91 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 61 event pairs, 0 based on Foata normal form. 0/83 useless extension candidates. Maximal degree in co-relation 72. Up to 2 conditions per place. [2022-11-21 16:53:27,393 INFO L82 GeneralOperation]: Start removeDead. Operand has 102 places, 94 transitions, 203 flow [2022-11-21 16:53:27,397 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 99 places, 91 transitions, 191 flow [2022-11-21 16:53:27,408 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-21 16:53:27,417 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;@6c3919bf, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-21 16:53:27,417 INFO L358 AbstractCegarLoop]: Starting to check reachability of 15 error locations. [2022-11-21 16:53:27,431 INFO L130 PetriNetUnfolder]: 0/29 cut-off events. [2022-11-21 16:53:27,432 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-21 16:53:27,432 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:53:27,433 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:53:27,433 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-11-21 16:53:27,445 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:53:27,446 INFO L85 PathProgramCache]: Analyzing trace with hash -1826627331, now seen corresponding path program 1 times [2022-11-21 16:53:27,462 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:53:27,463 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [277376601] [2022-11-21 16:53:27,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:53:27,466 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:53:27,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:53:27,889 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:53:27,890 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:53:27,891 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [277376601] [2022-11-21 16:53:27,892 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [277376601] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:53:27,892 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:53:27,892 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-21 16:53:27,896 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [152009642] [2022-11-21 16:53:27,897 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:53:27,908 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 16:53:27,908 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:53:27,945 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 16:53:27,948 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 16:53:27,951 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 94 [2022-11-21 16:53:27,955 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 99 places, 91 transitions, 191 flow. Second operand has 3 states, 3 states have (on average 78.0) internal successors, (234), 3 states have internal predecessors, (234), 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) [2022-11-21 16:53:27,956 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:53:27,956 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 94 [2022-11-21 16:53:27,957 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:53:28,230 INFO L130 PetriNetUnfolder]: 104/307 cut-off events. [2022-11-21 16:53:28,230 INFO L131 PetriNetUnfolder]: For 11/11 co-relation queries the response was YES. [2022-11-21 16:53:28,236 INFO L83 FinitePrefix]: Finished finitePrefix Result has 525 conditions, 307 events. 104/307 cut-off events. For 11/11 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 1432 event pairs, 38 based on Foata normal form. 38/254 useless extension candidates. Maximal degree in co-relation 493. Up to 187 conditions per place. [2022-11-21 16:53:28,242 INFO L137 encePairwiseOnDemand]: 82/94 looper letters, 16 selfloop transitions, 4 changer transitions 0/94 dead transitions. [2022-11-21 16:53:28,243 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 100 places, 94 transitions, 243 flow [2022-11-21 16:53:28,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 16:53:28,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-21 16:53:28,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 261 transitions. [2022-11-21 16:53:28,257 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.925531914893617 [2022-11-21 16:53:28,258 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 261 transitions. [2022-11-21 16:53:28,259 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 261 transitions. [2022-11-21 16:53:28,260 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:53:28,263 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 261 transitions. [2022-11-21 16:53:28,266 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 87.0) internal successors, (261), 3 states have internal predecessors, (261), 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) [2022-11-21 16:53:28,272 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 94.0) internal successors, (376), 4 states have internal predecessors, (376), 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) [2022-11-21 16:53:28,273 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 94.0) internal successors, (376), 4 states have internal predecessors, (376), 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) [2022-11-21 16:53:28,275 INFO L175 Difference]: Start difference. First operand has 99 places, 91 transitions, 191 flow. Second operand 3 states and 261 transitions. [2022-11-21 16:53:28,276 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 100 places, 94 transitions, 243 flow [2022-11-21 16:53:28,280 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 97 places, 94 transitions, 238 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-11-21 16:53:28,284 INFO L231 Difference]: Finished difference. Result has 98 places, 91 transitions, 218 flow [2022-11-21 16:53:28,286 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=182, PETRI_DIFFERENCE_MINUEND_PLACES=95, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=88, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=84, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=218, PETRI_PLACES=98, PETRI_TRANSITIONS=91} [2022-11-21 16:53:28,291 INFO L288 CegarLoopForPetriNet]: 99 programPoint places, -1 predicate places. [2022-11-21 16:53:28,291 INFO L495 AbstractCegarLoop]: Abstraction has has 98 places, 91 transitions, 218 flow [2022-11-21 16:53:28,292 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 78.0) internal successors, (234), 3 states have internal predecessors, (234), 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) [2022-11-21 16:53:28,292 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:53:28,292 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:53:28,292 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-21 16:53:28,293 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-11-21 16:53:28,293 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:53:28,294 INFO L85 PathProgramCache]: Analyzing trace with hash -496809105, now seen corresponding path program 1 times [2022-11-21 16:53:28,294 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:53:28,294 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1635496465] [2022-11-21 16:53:28,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:53:28,295 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:53:28,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:53:28,489 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:53:28,489 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:53:28,490 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1635496465] [2022-11-21 16:53:28,490 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1635496465] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:53:28,490 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:53:28,491 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-21 16:53:28,491 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1368409019] [2022-11-21 16:53:28,491 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:53:28,493 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-21 16:53:28,493 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:53:28,493 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-21 16:53:28,494 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-21 16:53:28,495 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 94 [2022-11-21 16:53:28,496 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 98 places, 91 transitions, 218 flow. Second operand has 4 states, 4 states have (on average 78.25) internal successors, (313), 4 states have internal predecessors, (313), 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) [2022-11-21 16:53:28,496 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:53:28,496 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 94 [2022-11-21 16:53:28,497 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:53:28,651 INFO L130 PetriNetUnfolder]: 54/439 cut-off events. [2022-11-21 16:53:28,651 INFO L131 PetriNetUnfolder]: For 25/31 co-relation queries the response was YES. [2022-11-21 16:53:28,654 INFO L83 FinitePrefix]: Finished finitePrefix Result has 665 conditions, 439 events. 54/439 cut-off events. For 25/31 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 2264 event pairs, 17 based on Foata normal form. 0/381 useless extension candidates. Maximal degree in co-relation 633. Up to 80 conditions per place. [2022-11-21 16:53:28,658 INFO L137 encePairwiseOnDemand]: 84/94 looper letters, 15 selfloop transitions, 10 changer transitions 3/102 dead transitions. [2022-11-21 16:53:28,658 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 101 places, 102 transitions, 314 flow [2022-11-21 16:53:28,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-21 16:53:28,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-11-21 16:53:28,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 339 transitions. [2022-11-21 16:53:28,682 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.901595744680851 [2022-11-21 16:53:28,682 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 339 transitions. [2022-11-21 16:53:28,682 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 339 transitions. [2022-11-21 16:53:28,683 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:53:28,683 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 339 transitions. [2022-11-21 16:53:28,685 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 84.75) internal successors, (339), 4 states have internal predecessors, (339), 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) [2022-11-21 16:53:28,687 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 94.0) internal successors, (470), 5 states have internal predecessors, (470), 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) [2022-11-21 16:53:28,688 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 94.0) internal successors, (470), 5 states have internal predecessors, (470), 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) [2022-11-21 16:53:28,688 INFO L175 Difference]: Start difference. First operand has 98 places, 91 transitions, 218 flow. Second operand 4 states and 339 transitions. [2022-11-21 16:53:28,688 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 101 places, 102 transitions, 314 flow [2022-11-21 16:53:28,690 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 100 places, 102 transitions, 310 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-21 16:53:28,692 INFO L231 Difference]: Finished difference. Result has 102 places, 94 transitions, 274 flow [2022-11-21 16:53:28,693 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=214, PETRI_DIFFERENCE_MINUEND_PLACES=97, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=91, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=81, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=274, PETRI_PLACES=102, PETRI_TRANSITIONS=94} [2022-11-21 16:53:28,694 INFO L288 CegarLoopForPetriNet]: 99 programPoint places, 3 predicate places. [2022-11-21 16:53:28,694 INFO L495 AbstractCegarLoop]: Abstraction has has 102 places, 94 transitions, 274 flow [2022-11-21 16:53:28,695 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 78.25) internal successors, (313), 4 states have internal predecessors, (313), 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) [2022-11-21 16:53:28,695 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:53:28,695 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:53:28,695 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-21 16:53:28,696 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-11-21 16:53:28,696 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:53:28,697 INFO L85 PathProgramCache]: Analyzing trace with hash 685743224, now seen corresponding path program 1 times [2022-11-21 16:53:28,697 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:53:28,697 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [410910843] [2022-11-21 16:53:28,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:53:28,698 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:53:28,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:53:28,816 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:53:28,817 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:53:28,817 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [410910843] [2022-11-21 16:53:28,818 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [410910843] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:53:28,818 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:53:28,818 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-21 16:53:28,819 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1787376161] [2022-11-21 16:53:28,819 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:53:28,819 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-21 16:53:28,820 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:53:28,820 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-21 16:53:28,821 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-21 16:53:28,822 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 94 [2022-11-21 16:53:28,823 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 102 places, 94 transitions, 274 flow. Second operand has 4 states, 4 states have (on average 78.25) internal successors, (313), 4 states have internal predecessors, (313), 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) [2022-11-21 16:53:28,823 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:53:28,823 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 94 [2022-11-21 16:53:28,824 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:53:28,918 INFO L130 PetriNetUnfolder]: 20/251 cut-off events. [2022-11-21 16:53:28,918 INFO L131 PetriNetUnfolder]: For 179/191 co-relation queries the response was YES. [2022-11-21 16:53:28,920 INFO L83 FinitePrefix]: Finished finitePrefix Result has 392 conditions, 251 events. 20/251 cut-off events. For 179/191 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 908 event pairs, 7 based on Foata normal form. 20/260 useless extension candidates. Maximal degree in co-relation 357. Up to 42 conditions per place. [2022-11-21 16:53:28,921 INFO L137 encePairwiseOnDemand]: 87/94 looper letters, 13 selfloop transitions, 4 changer transitions 0/91 dead transitions. [2022-11-21 16:53:28,922 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 102 places, 91 transitions, 276 flow [2022-11-21 16:53:28,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-21 16:53:28,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-11-21 16:53:28,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 328 transitions. [2022-11-21 16:53:28,924 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8723404255319149 [2022-11-21 16:53:28,925 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 328 transitions. [2022-11-21 16:53:28,925 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 328 transitions. [2022-11-21 16:53:28,925 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:53:28,926 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 328 transitions. [2022-11-21 16:53:28,927 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 82.0) internal successors, (328), 4 states have internal predecessors, (328), 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) [2022-11-21 16:53:28,929 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 94.0) internal successors, (470), 5 states have internal predecessors, (470), 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) [2022-11-21 16:53:28,930 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 94.0) internal successors, (470), 5 states have internal predecessors, (470), 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) [2022-11-21 16:53:28,930 INFO L175 Difference]: Start difference. First operand has 102 places, 94 transitions, 274 flow. Second operand 4 states and 328 transitions. [2022-11-21 16:53:28,930 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 102 places, 91 transitions, 276 flow [2022-11-21 16:53:28,932 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 99 places, 91 transitions, 258 flow, removed 3 selfloop flow, removed 3 redundant places. [2022-11-21 16:53:28,935 INFO L231 Difference]: Finished difference. Result has 99 places, 88 transitions, 222 flow [2022-11-21 16:53:28,935 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=214, PETRI_DIFFERENCE_MINUEND_PLACES=96, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=88, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=84, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=222, PETRI_PLACES=99, PETRI_TRANSITIONS=88} [2022-11-21 16:53:28,936 INFO L288 CegarLoopForPetriNet]: 99 programPoint places, 0 predicate places. [2022-11-21 16:53:28,936 INFO L495 AbstractCegarLoop]: Abstraction has has 99 places, 88 transitions, 222 flow [2022-11-21 16:53:28,937 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 78.25) internal successors, (313), 4 states have internal predecessors, (313), 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) [2022-11-21 16:53:28,937 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:53:28,937 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:53:28,938 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-21 16:53:28,938 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-11-21 16:53:28,939 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:53:28,939 INFO L85 PathProgramCache]: Analyzing trace with hash 442091820, now seen corresponding path program 1 times [2022-11-21 16:53:28,939 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:53:28,940 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1518708361] [2022-11-21 16:53:28,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:53:28,940 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:53:28,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:53:29,131 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:53:29,132 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:53:29,133 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1518708361] [2022-11-21 16:53:29,133 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1518708361] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:53:29,133 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:53:29,134 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-21 16:53:29,134 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1555751756] [2022-11-21 16:53:29,134 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:53:29,136 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-21 16:53:29,136 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:53:29,137 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-21 16:53:29,137 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-11-21 16:53:29,138 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 94 [2022-11-21 16:53:29,139 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 99 places, 88 transitions, 222 flow. Second operand has 5 states, 5 states have (on average 78.4) internal successors, (392), 5 states have internal predecessors, (392), 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) [2022-11-21 16:53:29,139 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:53:29,140 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 94 [2022-11-21 16:53:29,140 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:53:29,228 INFO L130 PetriNetUnfolder]: 17/138 cut-off events. [2022-11-21 16:53:29,229 INFO L131 PetriNetUnfolder]: For 65/69 co-relation queries the response was YES. [2022-11-21 16:53:29,229 INFO L83 FinitePrefix]: Finished finitePrefix Result has 238 conditions, 138 events. 17/138 cut-off events. For 65/69 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 327 event pairs, 0 based on Foata normal form. 10/145 useless extension candidates. Maximal degree in co-relation 204. Up to 18 conditions per place. [2022-11-21 16:53:29,230 INFO L137 encePairwiseOnDemand]: 87/94 looper letters, 0 selfloop transitions, 0 changer transitions 90/90 dead transitions. [2022-11-21 16:53:29,230 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 100 places, 90 transitions, 252 flow [2022-11-21 16:53:29,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-21 16:53:29,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-11-21 16:53:29,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 404 transitions. [2022-11-21 16:53:29,232 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8595744680851064 [2022-11-21 16:53:29,233 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 404 transitions. [2022-11-21 16:53:29,234 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 404 transitions. [2022-11-21 16:53:29,237 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:53:29,237 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 404 transitions. [2022-11-21 16:53:29,239 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 80.8) internal successors, (404), 5 states have internal predecessors, (404), 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) [2022-11-21 16:53:29,240 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 94.0) internal successors, (564), 6 states have internal predecessors, (564), 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) [2022-11-21 16:53:29,241 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 94.0) internal successors, (564), 6 states have internal predecessors, (564), 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) [2022-11-21 16:53:29,241 INFO L175 Difference]: Start difference. First operand has 99 places, 88 transitions, 222 flow. Second operand 5 states and 404 transitions. [2022-11-21 16:53:29,242 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 100 places, 90 transitions, 252 flow [2022-11-21 16:53:29,246 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 96 places, 90 transitions, 237 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-11-21 16:53:29,247 INFO L231 Difference]: Finished difference. Result has 96 places, 0 transitions, 0 flow [2022-11-21 16:53:29,251 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=189, PETRI_DIFFERENCE_MINUEND_PLACES=92, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=85, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=85, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=0, PETRI_PLACES=96, PETRI_TRANSITIONS=0} [2022-11-21 16:53:29,252 INFO L288 CegarLoopForPetriNet]: 99 programPoint places, -3 predicate places. [2022-11-21 16:53:29,252 INFO L495 AbstractCegarLoop]: Abstraction has has 96 places, 0 transitions, 0 flow [2022-11-21 16:53:29,253 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 78.4) internal successors, (392), 5 states have internal predecessors, (392), 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) [2022-11-21 16:53:29,256 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 15 remaining) [2022-11-21 16:53:29,257 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 15 remaining) [2022-11-21 16:53:29,257 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 15 remaining) [2022-11-21 16:53:29,257 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 15 remaining) [2022-11-21 16:53:29,257 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 15 remaining) [2022-11-21 16:53:29,258 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 15 remaining) [2022-11-21 16:53:29,258 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 15 remaining) [2022-11-21 16:53:29,258 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (7 of 15 remaining) [2022-11-21 16:53:29,258 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 15 remaining) [2022-11-21 16:53:29,259 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 15 remaining) [2022-11-21 16:53:29,259 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 15 remaining) [2022-11-21 16:53:29,259 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 15 remaining) [2022-11-21 16:53:29,260 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 15 remaining) [2022-11-21 16:53:29,260 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 15 remaining) [2022-11-21 16:53:29,260 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 15 remaining) [2022-11-21 16:53:29,260 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-21 16:53:29,261 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2022-11-21 16:53:29,270 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-21 16:53:29,270 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-21 16:53:29,280 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.11 04:53:29 BasicIcfg [2022-11-21 16:53:29,281 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-21 16:53:29,282 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-21 16:53:29,291 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-21 16:53:29,291 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-21 16:53:29,292 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 04:53:27" (3/4) ... [2022-11-21 16:53:29,295 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-21 16:53:29,302 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2022-11-21 16:53:29,303 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2022-11-21 16:53:29,303 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2022-11-21 16:53:29,310 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 17 nodes and edges [2022-11-21 16:53:29,311 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-11-21 16:53:29,311 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-21 16:53:29,311 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-21 16:53:29,366 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b71554f9-5f5c-4f37-8d12-4d468832091b/bin/uautomizer-vX5HgA9Q3a/witness.graphml [2022-11-21 16:53:29,366 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-21 16:53:29,367 INFO L158 Benchmark]: Toolchain (without parser) took 3699.92ms. Allocated memory was 136.3MB in the beginning and 172.0MB in the end (delta: 35.7MB). Free memory was 90.1MB in the beginning and 76.7MB in the end (delta: 13.4MB). Peak memory consumption was 52.2MB. Max. memory is 16.1GB. [2022-11-21 16:53:29,367 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 136.3MB. Free memory was 102.7MB in the beginning and 102.5MB in the end (delta: 140.1kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-21 16:53:29,368 INFO L158 Benchmark]: CACSL2BoogieTranslator took 635.84ms. Allocated memory is still 136.3MB. Free memory was 89.6MB in the beginning and 70.2MB in the end (delta: 19.3MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-11-21 16:53:29,368 INFO L158 Benchmark]: Boogie Procedure Inliner took 63.97ms. Allocated memory is still 136.3MB. Free memory was 69.8MB in the beginning and 68.1MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-21 16:53:29,369 INFO L158 Benchmark]: Boogie Preprocessor took 45.53ms. Allocated memory is still 136.3MB. Free memory was 68.1MB in the beginning and 66.5MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-21 16:53:29,369 INFO L158 Benchmark]: RCFGBuilder took 609.86ms. Allocated memory is still 136.3MB. Free memory was 66.5MB in the beginning and 51.4MB in the end (delta: 15.2MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-11-21 16:53:29,369 INFO L158 Benchmark]: TraceAbstraction took 2246.97ms. Allocated memory was 136.3MB in the beginning and 172.0MB in the end (delta: 35.7MB). Free memory was 50.4MB in the beginning and 79.8MB in the end (delta: -29.4MB). Peak memory consumption was 8.2MB. Max. memory is 16.1GB. [2022-11-21 16:53:29,370 INFO L158 Benchmark]: Witness Printer took 84.23ms. Allocated memory is still 172.0MB. Free memory was 79.8MB in the beginning and 76.7MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-21 16:53:29,372 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32ms. Allocated memory is still 136.3MB. Free memory was 102.7MB in the beginning and 102.5MB in the end (delta: 140.1kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 635.84ms. Allocated memory is still 136.3MB. Free memory was 89.6MB in the beginning and 70.2MB in the end (delta: 19.3MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 63.97ms. Allocated memory is still 136.3MB. Free memory was 69.8MB in the beginning and 68.1MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 45.53ms. Allocated memory is still 136.3MB. Free memory was 68.1MB in the beginning and 66.5MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 609.86ms. Allocated memory is still 136.3MB. Free memory was 66.5MB in the beginning and 51.4MB in the end (delta: 15.2MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 2246.97ms. Allocated memory was 136.3MB in the beginning and 172.0MB in the end (delta: 35.7MB). Free memory was 50.4MB in the beginning and 79.8MB in the end (delta: -29.4MB). Peak memory consumption was 8.2MB. Max. memory is 16.1GB. * Witness Printer took 84.23ms. Allocated memory is still 172.0MB. Free memory was 79.8MB in the beginning and 76.7MB 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: - PositiveResult [Line: 729]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 729]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 741]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 741]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 756]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 756]: 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, 122 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: 2.0s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 32 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 32 mSDsluCounter, 10 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 30 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 102 IncrementalHoareTripleChecker+Invalid, 132 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 30 mSolverCounterUnsat, 10 mSDtfsCounter, 102 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=274occurred in iteration=2, 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, 0.1s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 149 NumberOfCodeBlocks, 149 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 145 ConstructedInterpolants, 0 QuantifiedInterpolants, 371 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! [2022-11-21 16:53:29,414 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b71554f9-5f5c-4f37-8d12-4d468832091b/bin/uautomizer-vX5HgA9Q3a/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