./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/goblint-regression/13-privatized_40-traces-ex-6_true.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4f9af400 extending candidate: java ['java'] extending candidate: /usr/bin/java ['java', '/usr/bin/java'] extending candidate: /opt/oracle-jdk-bin-*/bin/java ['java', '/usr/bin/java'] extending candidate: /opt/openjdk-*/bin/java ['java', '/usr/bin/java'] extending candidate: /usr/lib/jvm/java-*-openjdk-amd64/bin/java ['java', '/usr/bin/java', '/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java', '/usr/lib/jvm/java-17-openjdk-amd64/bin/java', '/usr/lib/jvm/java-11-openjdk-amd64/bin/java', '/usr/lib/jvm/java-1.17.0-openjdk-amd64/bin/java'] ['/root/.sdkman/candidates/java/21.0.5-tem/bin/java', '-Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config', '-Xmx15G', '-Xms4m', '-jar', '/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar', '-data', '@noDefault', '-ultimatedata', '/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data', '-tc', '/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml', '-i', '../sv-benchmarks/c/goblint-regression/13-privatized_40-traces-ex-6_true.i', '-s', '/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf', '--cacsl2boogietranslator.entry.function', 'main', '--witnessprinter.witness.directory', '/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux', '--witnessprinter.witness.filename', 'witness', '--witnessprinter.write.witness.besides.input.file', 'false', '--witnessprinter.graph.data.specification', 'CHECK( init(main()), LTL(G ! call(reach_error())) )\n\n', '--witnessprinter.graph.data.producer', 'Automizer', '--witnessprinter.graph.data.architecture', '32bit', '--witnessprinter.graph.data.programhash', '5ccb5cdd0373226e681809d7804324f4019c28126fdbac8b5748755015258b65'] Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/goblint-regression/13-privatized_40-traces-ex-6_true.i -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 5ccb5cdd0373226e681809d7804324f4019c28126fdbac8b5748755015258b65 --- Real Ultimate output --- This is Ultimate 0.3.0-?-4f9af40 [2024-11-07 11:17:59,753 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-07 11:17:59,847 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-07 11:17:59,854 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-07 11:17:59,855 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-07 11:17:59,882 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-07 11:17:59,883 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-07 11:17:59,884 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-07 11:17:59,884 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-07 11:17:59,884 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-07 11:17:59,885 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-07 11:17:59,885 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-07 11:17:59,886 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-07 11:17:59,886 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-07 11:17:59,886 INFO L153 SettingsManager]: * Use SBE=true [2024-11-07 11:17:59,886 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-07 11:17:59,886 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-07 11:17:59,887 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-07 11:17:59,887 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-07 11:17:59,887 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-07 11:17:59,887 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-07 11:17:59,887 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-07 11:17:59,887 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-07 11:17:59,887 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-07 11:17:59,887 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-07 11:17:59,887 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-07 11:17:59,888 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-07 11:17:59,888 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-07 11:17:59,888 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-07 11:17:59,888 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-07 11:17:59,888 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-07 11:17:59,888 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-07 11:17:59,888 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-07 11:17:59,888 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-07 11:17:59,889 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-07 11:17:59,889 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-07 11:17:59,889 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-07 11:17:59,889 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-07 11:17:59,889 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-07 11:17:59,889 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-07 11:17:59,889 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-07 11:17:59,889 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-07 11:17:59,889 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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 -> /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) 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 -> 5ccb5cdd0373226e681809d7804324f4019c28126fdbac8b5748755015258b65 [2024-11-07 11:18:00,173 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-07 11:18:00,181 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-07 11:18:00,183 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-07 11:18:00,184 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-07 11:18:00,184 INFO L274 PluginConnector]: CDTParser initialized [2024-11-07 11:18:00,186 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/goblint-regression/13-privatized_40-traces-ex-6_true.i [2024-11-07 11:18:01,450 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-07 11:18:01,702 INFO L384 CDTParser]: Found 1 translation units. [2024-11-07 11:18:01,703 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/goblint-regression/13-privatized_40-traces-ex-6_true.i [2024-11-07 11:18:01,714 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/6dace8290/2c437e44f5c14d369f66b457617e6865/FLAG4534c37a6 [2024-11-07 11:18:01,738 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/6dace8290/2c437e44f5c14d369f66b457617e6865 [2024-11-07 11:18:01,740 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-07 11:18:01,742 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-07 11:18:01,743 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-07 11:18:01,744 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-07 11:18:01,748 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-07 11:18:01,748 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 11:18:01" (1/1) ... [2024-11-07 11:18:01,751 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@11cf099c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:18:01, skipping insertion in model container [2024-11-07 11:18:01,751 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 11:18:01" (1/1) ... [2024-11-07 11:18:01,782 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-07 11:18:01,932 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/goblint-regression/13-privatized_40-traces-ex-6_true.i[1088,1101] [2024-11-07 11:18:02,041 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 11:18:02,061 INFO L200 MainTranslator]: Completed pre-run [2024-11-07 11:18:02,069 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/goblint-regression/13-privatized_40-traces-ex-6_true.i[1088,1101] [2024-11-07 11:18:02,107 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 11:18:02,148 INFO L204 MainTranslator]: Completed translation [2024-11-07 11:18:02,149 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:18:02 WrapperNode [2024-11-07 11:18:02,150 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-07 11:18:02,151 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-07 11:18:02,151 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-07 11:18:02,151 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-07 11:18:02,158 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:18:02" (1/1) ... [2024-11-07 11:18:02,170 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:18:02" (1/1) ... [2024-11-07 11:18:02,190 INFO L138 Inliner]: procedures = 162, calls = 27, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 47 [2024-11-07 11:18:02,191 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-07 11:18:02,192 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-07 11:18:02,192 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-07 11:18:02,192 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-07 11:18:02,201 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:18:02" (1/1) ... [2024-11-07 11:18:02,201 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:18:02" (1/1) ... [2024-11-07 11:18:02,205 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:18:02" (1/1) ... [2024-11-07 11:18:02,226 INFO L175 MemorySlicer]: Split 12 memory accesses to 3 slices as follows [2, 5, 5]. 42 percent of accesses are in the largest equivalence class. The 12 initializations are split as follows [2, 5, 5]. The 0 writes are split as follows [0, 0, 0]. [2024-11-07 11:18:02,226 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:18:02" (1/1) ... [2024-11-07 11:18:02,227 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:18:02" (1/1) ... [2024-11-07 11:18:02,232 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:18:02" (1/1) ... [2024-11-07 11:18:02,234 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:18:02" (1/1) ... [2024-11-07 11:18:02,235 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:18:02" (1/1) ... [2024-11-07 11:18:02,240 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:18:02" (1/1) ... [2024-11-07 11:18:02,243 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-07 11:18:02,248 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-07 11:18:02,248 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-07 11:18:02,248 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-07 11:18:02,249 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:18:02" (1/1) ... [2024-11-07 11:18:02,257 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-07 11:18:02,269 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 11:18:02,284 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-07 11:18:02,293 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-07 11:18:02,317 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-07 11:18:02,317 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-07 11:18:02,318 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-11-07 11:18:02,318 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-11-07 11:18:02,318 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-07 11:18:02,318 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-07 11:18:02,318 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-07 11:18:02,318 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-07 11:18:02,318 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-07 11:18:02,318 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-07 11:18:02,320 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-07 11:18:02,433 INFO L238 CfgBuilder]: Building ICFG [2024-11-07 11:18:02,434 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-07 11:18:02,557 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-07 11:18:02,558 INFO L287 CfgBuilder]: Performing block encoding [2024-11-07 11:18:02,662 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-07 11:18:02,662 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-07 11:18:02,662 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 11:18:02 BoogieIcfgContainer [2024-11-07 11:18:02,663 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-07 11:18:02,664 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-07 11:18:02,666 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-07 11:18:02,683 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-07 11:18:02,683 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 11:18:01" (1/3) ... [2024-11-07 11:18:02,684 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@608d96cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 11:18:02, skipping insertion in model container [2024-11-07 11:18:02,684 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:18:02" (2/3) ... [2024-11-07 11:18:02,685 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@608d96cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 11:18:02, skipping insertion in model container [2024-11-07 11:18:02,685 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 11:18:02" (3/3) ... [2024-11-07 11:18:02,686 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_40-traces-ex-6_true.i [2024-11-07 11:18:02,699 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-07 11:18:02,699 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-07 11:18:02,699 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-07 11:18:02,735 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-07 11:18:02,769 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 27 places, 24 transitions, 52 flow [2024-11-07 11:18:02,799 INFO L124 PetriNetUnfolderBase]: 1/23 cut-off events. [2024-11-07 11:18:02,805 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-07 11:18:02,807 INFO L83 FinitePrefix]: Finished finitePrefix Result has 27 conditions, 23 events. 1/23 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 25 event pairs, 0 based on Foata normal form. 0/21 useless extension candidates. Maximal degree in co-relation 21. Up to 2 conditions per place. [2024-11-07 11:18:02,811 INFO L82 GeneralOperation]: Start removeDead. Operand has 27 places, 24 transitions, 52 flow [2024-11-07 11:18:02,814 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 24 places, 20 transitions, 43 flow [2024-11-07 11:18:02,820 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-07 11:18:02,829 INFO L333 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, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@5c09dc6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-07 11:18:02,829 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-07 11:18:02,840 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-07 11:18:02,840 INFO L124 PetriNetUnfolderBase]: 0/19 cut-off events. [2024-11-07 11:18:02,840 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-07 11:18:02,840 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 11:18:02,841 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 11:18:02,841 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-11-07 11:18:02,846 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 11:18:02,847 INFO L85 PathProgramCache]: Analyzing trace with hash -1796723507, now seen corresponding path program 1 times [2024-11-07 11:18:02,853 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 11:18:02,853 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1548355629] [2024-11-07 11:18:02,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 11:18:02,854 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 11:18:02,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 11:18:03,157 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 11:18:03,161 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 11:18:03,161 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1548355629] [2024-11-07 11:18:03,164 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1548355629] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 11:18:03,164 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 11:18:03,165 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-07 11:18:03,166 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1400521880] [2024-11-07 11:18:03,169 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 11:18:03,175 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-07 11:18:03,180 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 11:18:03,198 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-07 11:18:03,199 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-07 11:18:03,204 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 24 [2024-11-07 11:18:03,207 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 24 places, 20 transitions, 43 flow. Second operand has 4 states, 4 states have (on average 8.0) internal successors, (32), 4 states have internal predecessors, (32), 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) [2024-11-07 11:18:03,207 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 11:18:03,207 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 24 [2024-11-07 11:18:03,208 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 11:18:03,328 INFO L124 PetriNetUnfolderBase]: 38/107 cut-off events. [2024-11-07 11:18:03,330 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-07 11:18:03,331 INFO L83 FinitePrefix]: Finished finitePrefix Result has 209 conditions, 107 events. 38/107 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 348 event pairs, 22 based on Foata normal form. 8/114 useless extension candidates. Maximal degree in co-relation 200. Up to 60 conditions per place. [2024-11-07 11:18:03,332 INFO L140 encePairwiseOnDemand]: 19/24 looper letters, 17 selfloop transitions, 3 changer transitions 8/33 dead transitions. [2024-11-07 11:18:03,332 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 28 places, 33 transitions, 125 flow [2024-11-07 11:18:03,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-07 11:18:03,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-07 11:18:03,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 60 transitions. [2024-11-07 11:18:03,345 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5 [2024-11-07 11:18:03,349 INFO L175 Difference]: Start difference. First operand has 24 places, 20 transitions, 43 flow. Second operand 5 states and 60 transitions. [2024-11-07 11:18:03,350 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 28 places, 33 transitions, 125 flow [2024-11-07 11:18:03,354 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 27 places, 33 transitions, 124 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-07 11:18:03,357 INFO L231 Difference]: Finished difference. Result has 30 places, 20 transitions, 57 flow [2024-11-07 11:18:03,359 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=42, PETRI_DIFFERENCE_MINUEND_PLACES=23, 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=5, PETRI_FLOW=57, PETRI_PLACES=30, PETRI_TRANSITIONS=20} [2024-11-07 11:18:03,364 INFO L277 CegarLoopForPetriNet]: 24 programPoint places, 6 predicate places. [2024-11-07 11:18:03,364 INFO L471 AbstractCegarLoop]: Abstraction has has 30 places, 20 transitions, 57 flow [2024-11-07 11:18:03,364 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.0) internal successors, (32), 4 states have internal predecessors, (32), 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) [2024-11-07 11:18:03,364 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 11:18:03,364 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 11:18:03,365 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-07 11:18:03,365 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-11-07 11:18:03,365 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 11:18:03,365 INFO L85 PathProgramCache]: Analyzing trace with hash 62930284, now seen corresponding path program 1 times [2024-11-07 11:18:03,365 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 11:18:03,366 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1354031047] [2024-11-07 11:18:03,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 11:18:03,366 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 11:18:03,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 11:18:03,653 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 11:18:03,655 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 11:18:03,655 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1354031047] [2024-11-07 11:18:03,655 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1354031047] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 11:18:03,655 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 11:18:03,655 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-07 11:18:03,655 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1647705085] [2024-11-07 11:18:03,656 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 11:18:03,656 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-07 11:18:03,657 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 11:18:03,657 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-07 11:18:03,657 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-07 11:18:03,658 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 24 [2024-11-07 11:18:03,658 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 30 places, 20 transitions, 57 flow. Second operand has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 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) [2024-11-07 11:18:03,658 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 11:18:03,658 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 24 [2024-11-07 11:18:03,658 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 11:18:03,727 INFO L124 PetriNetUnfolderBase]: 12/62 cut-off events. [2024-11-07 11:18:03,729 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2024-11-07 11:18:03,730 INFO L83 FinitePrefix]: Finished finitePrefix Result has 135 conditions, 62 events. 12/62 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 136 event pairs, 5 based on Foata normal form. 7/69 useless extension candidates. Maximal degree in co-relation 122. Up to 32 conditions per place. [2024-11-07 11:18:03,730 INFO L140 encePairwiseOnDemand]: 19/24 looper letters, 9 selfloop transitions, 5 changer transitions 2/22 dead transitions. [2024-11-07 11:18:03,730 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 31 places, 22 transitions, 93 flow [2024-11-07 11:18:03,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-07 11:18:03,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-07 11:18:03,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 50 transitions. [2024-11-07 11:18:03,732 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5208333333333334 [2024-11-07 11:18:03,732 INFO L175 Difference]: Start difference. First operand has 30 places, 20 transitions, 57 flow. Second operand 4 states and 50 transitions. [2024-11-07 11:18:03,732 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 31 places, 22 transitions, 93 flow [2024-11-07 11:18:03,733 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 27 places, 22 transitions, 83 flow, removed 2 selfloop flow, removed 4 redundant places. [2024-11-07 11:18:03,734 INFO L231 Difference]: Finished difference. Result has 27 places, 20 transitions, 57 flow [2024-11-07 11:18:03,734 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=47, PETRI_DIFFERENCE_MINUEND_PLACES=24, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=20, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=57, PETRI_PLACES=27, PETRI_TRANSITIONS=20} [2024-11-07 11:18:03,735 INFO L277 CegarLoopForPetriNet]: 24 programPoint places, 3 predicate places. [2024-11-07 11:18:03,735 INFO L471 AbstractCegarLoop]: Abstraction has has 27 places, 20 transitions, 57 flow [2024-11-07 11:18:03,735 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 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) [2024-11-07 11:18:03,736 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 11:18:03,736 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 11:18:03,736 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-07 11:18:03,736 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-11-07 11:18:03,736 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 11:18:03,736 INFO L85 PathProgramCache]: Analyzing trace with hash 2122913388, now seen corresponding path program 2 times [2024-11-07 11:18:03,737 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 11:18:03,737 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1663004068] [2024-11-07 11:18:03,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 11:18:03,737 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 11:18:03,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 11:18:03,946 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 11:18:03,947 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 11:18:03,947 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1663004068] [2024-11-07 11:18:03,947 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1663004068] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 11:18:03,948 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 11:18:03,948 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-07 11:18:03,948 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [823126607] [2024-11-07 11:18:03,948 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 11:18:03,948 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-07 11:18:03,948 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 11:18:03,949 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-07 11:18:03,949 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-07 11:18:03,949 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 24 [2024-11-07 11:18:03,949 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 27 places, 20 transitions, 57 flow. Second operand has 5 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 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) [2024-11-07 11:18:03,949 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 11:18:03,949 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 24 [2024-11-07 11:18:03,949 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 11:18:04,000 INFO L124 PetriNetUnfolderBase]: 10/45 cut-off events. [2024-11-07 11:18:04,000 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2024-11-07 11:18:04,000 INFO L83 FinitePrefix]: Finished finitePrefix Result has 102 conditions, 45 events. 10/45 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 68 event pairs, 6 based on Foata normal form. 1/45 useless extension candidates. Maximal degree in co-relation 91. Up to 22 conditions per place. [2024-11-07 11:18:04,001 INFO L140 encePairwiseOnDemand]: 20/24 looper letters, 0 selfloop transitions, 0 changer transitions 20/20 dead transitions. [2024-11-07 11:18:04,001 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 27 places, 20 transitions, 89 flow [2024-11-07 11:18:04,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-07 11:18:04,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-07 11:18:04,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 49 transitions. [2024-11-07 11:18:04,002 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5104166666666666 [2024-11-07 11:18:04,002 INFO L175 Difference]: Start difference. First operand has 27 places, 20 transitions, 57 flow. Second operand 4 states and 49 transitions. [2024-11-07 11:18:04,002 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 27 places, 20 transitions, 89 flow [2024-11-07 11:18:04,002 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 24 places, 20 transitions, 80 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-07 11:18:04,003 INFO L231 Difference]: Finished difference. Result has 24 places, 0 transitions, 0 flow [2024-11-07 11:18:04,003 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=24, PETRI_DIFFERENCE_MINUEND_FLOW=41, PETRI_DIFFERENCE_MINUEND_PLACES=21, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=17, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=0, PETRI_PLACES=24, PETRI_TRANSITIONS=0} [2024-11-07 11:18:04,003 INFO L277 CegarLoopForPetriNet]: 24 programPoint places, 0 predicate places. [2024-11-07 11:18:04,003 INFO L471 AbstractCegarLoop]: Abstraction has has 24 places, 0 transitions, 0 flow [2024-11-07 11:18:04,004 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 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) [2024-11-07 11:18:04,006 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2024-11-07 11:18:04,006 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 2 remaining) [2024-11-07 11:18:04,006 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-07 11:18:04,007 INFO L407 BasicCegarLoop]: Path program histogram: [2, 1] [2024-11-07 11:18:04,012 INFO L239 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-07 11:18:04,012 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-07 11:18:04,019 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 11:18:04 BasicIcfg [2024-11-07 11:18:04,019 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-07 11:18:04,020 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-07 11:18:04,020 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-07 11:18:04,020 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-07 11:18:04,021 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 11:18:02" (3/4) ... [2024-11-07 11:18:04,023 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-07 11:18:04,026 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2024-11-07 11:18:04,028 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 29 nodes and edges [2024-11-07 11:18:04,028 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2024-11-07 11:18:04,028 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-07 11:18:04,029 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-07 11:18:04,089 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-07 11:18:04,090 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-07 11:18:04,090 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-07 11:18:04,090 INFO L158 Benchmark]: Toolchain (without parser) took 2349.00ms. Allocated memory was 117.4MB in the beginning and 184.5MB in the end (delta: 67.1MB). Free memory was 90.8MB in the beginning and 155.5MB in the end (delta: -64.7MB). Peak memory consumption was 57.2MB. Max. memory is 16.1GB. [2024-11-07 11:18:04,091 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 117.4MB. Free memory is still 81.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-07 11:18:04,091 INFO L158 Benchmark]: CACSL2BoogieTranslator took 406.96ms. Allocated memory is still 117.4MB. Free memory was 90.7MB in the beginning and 71.3MB in the end (delta: 19.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-07 11:18:04,091 INFO L158 Benchmark]: Boogie Procedure Inliner took 40.35ms. Allocated memory is still 117.4MB. Free memory was 71.3MB in the beginning and 69.7MB in the end (delta: 1.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-07 11:18:04,091 INFO L158 Benchmark]: Boogie Preprocessor took 55.39ms. Allocated memory is still 117.4MB. Free memory was 69.7MB in the beginning and 68.3MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-07 11:18:04,091 INFO L158 Benchmark]: RCFGBuilder took 414.99ms. Allocated memory is still 117.4MB. Free memory was 68.3MB in the beginning and 46.4MB in the end (delta: 21.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-07 11:18:04,092 INFO L158 Benchmark]: TraceAbstraction took 1355.06ms. Allocated memory is still 117.4MB. Free memory was 45.7MB in the beginning and 42.3MB in the end (delta: 3.4MB). Peak memory consumption was 15.3MB. Max. memory is 16.1GB. [2024-11-07 11:18:04,092 INFO L158 Benchmark]: Witness Printer took 69.94ms. Allocated memory was 117.4MB in the beginning and 184.5MB in the end (delta: 67.1MB). Free memory was 42.3MB in the beginning and 155.5MB in the end (delta: -113.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-07 11:18:04,093 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27ms. Allocated memory is still 117.4MB. Free memory is still 81.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 406.96ms. Allocated memory is still 117.4MB. Free memory was 90.7MB in the beginning and 71.3MB in the end (delta: 19.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 40.35ms. Allocated memory is still 117.4MB. Free memory was 71.3MB in the beginning and 69.7MB in the end (delta: 1.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 55.39ms. Allocated memory is still 117.4MB. Free memory was 69.7MB in the beginning and 68.3MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 414.99ms. Allocated memory is still 117.4MB. Free memory was 68.3MB in the beginning and 46.4MB in the end (delta: 21.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 1355.06ms. Allocated memory is still 117.4MB. Free memory was 45.7MB in the beginning and 42.3MB in the end (delta: 3.4MB). Peak memory consumption was 15.3MB. Max. memory is 16.1GB. * Witness Printer took 69.94ms. Allocated memory was 117.4MB in the beginning and 184.5MB in the end (delta: 67.1MB). Free memory was 42.3MB in the beginning and 155.5MB in the end (delta: -113.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 19]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 35 locations, 2 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 1.2s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 34 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 32 mSDsluCounter, 2 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1 mSDsCounter, 9 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 93 IncrementalHoareTripleChecker+Invalid, 102 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 9 mSolverCounterUnsat, 1 mSDtfsCounter, 93 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 14 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=57occurred in iteration=1, InterpolantAutomatonStates: 13, 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, 0.6s InterpolantComputationTime, 43 NumberOfCodeBlocks, 43 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 40 ConstructedInterpolants, 0 QuantifiedInterpolants, 255 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 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-11-07 11:18:04,113 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE