./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/pthread-wmm/safe018_power.opt.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 4fc63b2a 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_a1cfd592-525c-450a-b5b2-4ffeea01cf61/bin/uautomizer-verify-4GaUIPS5ZU/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1cfd592-525c-450a-b5b2-4ffeea01cf61/bin/uautomizer-verify-4GaUIPS5ZU/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1cfd592-525c-450a-b5b2-4ffeea01cf61/bin/uautomizer-verify-4GaUIPS5ZU/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1cfd592-525c-450a-b5b2-4ffeea01cf61/bin/uautomizer-verify-4GaUIPS5ZU/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/pthread-wmm/safe018_power.opt.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1cfd592-525c-450a-b5b2-4ffeea01cf61/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1cfd592-525c-450a-b5b2-4ffeea01cf61/bin/uautomizer-verify-4GaUIPS5ZU --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 81ed16bb51b8da596bb3c9a2024b72d3baf359b31125524126025207d822fe2c --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4fc63b2 [2024-10-31 22:13:08,455 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-31 22:13:08,517 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1cfd592-525c-450a-b5b2-4ffeea01cf61/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-10-31 22:13:08,526 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-31 22:13:08,527 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-31 22:13:08,572 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-31 22:13:08,573 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-31 22:13:08,573 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-31 22:13:08,574 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-31 22:13:08,574 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-31 22:13:08,575 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-31 22:13:08,575 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-31 22:13:08,576 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-31 22:13:08,577 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-31 22:13:08,577 INFO L153 SettingsManager]: * Use SBE=true [2024-10-31 22:13:08,577 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-31 22:13:08,578 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-31 22:13:08,578 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-31 22:13:08,579 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-31 22:13:08,579 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-31 22:13:08,579 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-10-31 22:13:08,580 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-10-31 22:13:08,580 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-10-31 22:13:08,580 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-31 22:13:08,581 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-10-31 22:13:08,581 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-31 22:13:08,581 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-31 22:13:08,582 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-31 22:13:08,582 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-31 22:13:08,582 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-31 22:13:08,583 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-31 22:13:08,583 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-31 22:13:08,583 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-31 22:13:08,584 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 22:13:08,584 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-31 22:13:08,584 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-31 22:13:08,585 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-31 22:13:08,585 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-31 22:13:08,585 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-31 22:13:08,586 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-31 22:13:08,586 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-31 22:13:08,587 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-31 22:13:08,587 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1cfd592-525c-450a-b5b2-4ffeea01cf61/bin/uautomizer-verify-4GaUIPS5ZU/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1cfd592-525c-450a-b5b2-4ffeea01cf61/bin/uautomizer-verify-4GaUIPS5ZU Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 81ed16bb51b8da596bb3c9a2024b72d3baf359b31125524126025207d822fe2c [2024-10-31 22:13:08,995 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-31 22:13:09,026 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-31 22:13:09,030 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-31 22:13:09,032 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-31 22:13:09,033 INFO L274 PluginConnector]: CDTParser initialized [2024-10-31 22:13:09,034 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1cfd592-525c-450a-b5b2-4ffeea01cf61/bin/uautomizer-verify-4GaUIPS5ZU/../../sv-benchmarks/c/pthread-wmm/safe018_power.opt.i Unable to find full path for "g++" [2024-10-31 22:13:10,999 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-31 22:13:11,293 INFO L384 CDTParser]: Found 1 translation units. [2024-10-31 22:13:11,293 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1cfd592-525c-450a-b5b2-4ffeea01cf61/sv-benchmarks/c/pthread-wmm/safe018_power.opt.i [2024-10-31 22:13:11,320 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1cfd592-525c-450a-b5b2-4ffeea01cf61/bin/uautomizer-verify-4GaUIPS5ZU/data/9234974bb/9634368648ab43a4962df9531b6f3439/FLAGe7c3a83db [2024-10-31 22:13:11,557 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1cfd592-525c-450a-b5b2-4ffeea01cf61/bin/uautomizer-verify-4GaUIPS5ZU/data/9234974bb/9634368648ab43a4962df9531b6f3439 [2024-10-31 22:13:11,560 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-31 22:13:11,564 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-31 22:13:11,565 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-31 22:13:11,566 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-31 22:13:11,571 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-31 22:13:11,572 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:13:11" (1/1) ... [2024-10-31 22:13:11,574 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5be9381e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:13:11, skipping insertion in model container [2024-10-31 22:13:11,574 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:13:11" (1/1) ... [2024-10-31 22:13:11,639 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-31 22:13:12,194 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:13:12,208 INFO L200 MainTranslator]: Completed pre-run [2024-10-31 22:13:12,291 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:13:12,330 INFO L204 MainTranslator]: Completed translation [2024-10-31 22:13:12,331 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:13:12 WrapperNode [2024-10-31 22:13:12,331 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-31 22:13:12,332 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-31 22:13:12,332 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-31 22:13:12,332 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-31 22:13:12,340 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:13:12" (1/1) ... [2024-10-31 22:13:12,365 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:13:12" (1/1) ... [2024-10-31 22:13:12,403 INFO L138 Inliner]: procedures = 175, calls = 64, calls flagged for inlining = 6, calls inlined = 7, statements flattened = 170 [2024-10-31 22:13:12,404 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-31 22:13:12,404 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-31 22:13:12,405 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-31 22:13:12,405 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-31 22:13:12,417 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:13:12" (1/1) ... [2024-10-31 22:13:12,417 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:13:12" (1/1) ... [2024-10-31 22:13:12,421 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:13:12" (1/1) ... [2024-10-31 22:13:12,454 INFO L175 MemorySlicer]: Split 24 memory accesses to 2 slices as follows [2, 22]. 92 percent of accesses are in the largest equivalence class. The 3 initializations are split as follows [2, 1]. The 7 writes are split as follows [0, 7]. [2024-10-31 22:13:12,456 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:13:12" (1/1) ... [2024-10-31 22:13:12,457 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:13:12" (1/1) ... [2024-10-31 22:13:12,473 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:13:12" (1/1) ... [2024-10-31 22:13:12,479 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:13:12" (1/1) ... [2024-10-31 22:13:12,484 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:13:12" (1/1) ... [2024-10-31 22:13:12,487 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:13:12" (1/1) ... [2024-10-31 22:13:12,494 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-31 22:13:12,495 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-31 22:13:12,495 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-31 22:13:12,496 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-31 22:13:12,497 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:13:12" (1/1) ... [2024-10-31 22:13:12,506 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 22:13:12,518 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1cfd592-525c-450a-b5b2-4ffeea01cf61/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:13:12,533 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1cfd592-525c-450a-b5b2-4ffeea01cf61/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-31 22:13:12,536 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1cfd592-525c-450a-b5b2-4ffeea01cf61/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-31 22:13:12,564 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-10-31 22:13:12,564 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-10-31 22:13:12,564 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-10-31 22:13:12,565 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-10-31 22:13:12,565 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-10-31 22:13:12,565 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-31 22:13:12,565 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2024-10-31 22:13:12,565 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2024-10-31 22:13:12,565 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2024-10-31 22:13:12,566 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2024-10-31 22:13:12,566 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2024-10-31 22:13:12,566 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2024-10-31 22:13:12,566 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-31 22:13:12,566 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-10-31 22:13:12,566 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-10-31 22:13:12,566 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-31 22:13:12,567 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-31 22:13:12,568 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-31 22:13:12,792 INFO L238 CfgBuilder]: Building ICFG [2024-10-31 22:13:12,794 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-31 22:13:13,516 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-31 22:13:13,516 INFO L287 CfgBuilder]: Performing block encoding [2024-10-31 22:13:14,420 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-31 22:13:14,420 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-10-31 22:13:14,421 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:13:14 BoogieIcfgContainer [2024-10-31 22:13:14,421 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-31 22:13:14,424 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-31 22:13:14,424 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-31 22:13:14,428 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-31 22:13:14,428 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.10 10:13:11" (1/3) ... [2024-10-31 22:13:14,429 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70cac143 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 10:13:14, skipping insertion in model container [2024-10-31 22:13:14,429 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:13:12" (2/3) ... [2024-10-31 22:13:14,429 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70cac143 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 10:13:14, skipping insertion in model container [2024-10-31 22:13:14,429 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:13:14" (3/3) ... [2024-10-31 22:13:14,432 INFO L112 eAbstractionObserver]: Analyzing ICFG safe018_power.opt.i [2024-10-31 22:13:14,451 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-31 22:13:14,451 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 45 error locations. [2024-10-31 22:13:14,451 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-31 22:13:14,684 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-10-31 22:13:14,763 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 93 places, 85 transitions, 182 flow [2024-10-31 22:13:14,831 INFO L124 PetriNetUnfolderBase]: 2/82 cut-off events. [2024-10-31 22:13:14,832 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-31 22:13:14,840 INFO L83 FinitePrefix]: Finished finitePrefix Result has 92 conditions, 82 events. 2/82 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 335 event pairs, 0 based on Foata normal form. 0/35 useless extension candidates. Maximal degree in co-relation 84. Up to 2 conditions per place. [2024-10-31 22:13:14,840 INFO L82 GeneralOperation]: Start removeDead. Operand has 93 places, 85 transitions, 182 flow [2024-10-31 22:13:14,846 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 90 places, 82 transitions, 173 flow [2024-10-31 22:13:14,860 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-31 22:13:14,867 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=None, 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;@6fd2f150, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-31 22:13:14,868 INFO L334 AbstractCegarLoop]: Starting to check reachability of 85 error locations. [2024-10-31 22:13:14,874 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-31 22:13:14,874 INFO L124 PetriNetUnfolderBase]: 0/8 cut-off events. [2024-10-31 22:13:14,875 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-31 22:13:14,875 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:13:14,876 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2024-10-31 22:13:14,876 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [P0Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, P0Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, P0Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 82 more)] === [2024-10-31 22:13:14,881 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:13:14,882 INFO L85 PathProgramCache]: Analyzing trace with hash 906594748, now seen corresponding path program 1 times [2024-10-31 22:13:14,892 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:13:14,893 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1281930929] [2024-10-31 22:13:14,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:13:14,894 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:13:15,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:13:15,330 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:13:15,330 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:13:15,331 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1281930929] [2024-10-31 22:13:15,331 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1281930929] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:13:15,332 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:13:15,332 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-10-31 22:13:15,334 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [145514470] [2024-10-31 22:13:15,335 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:13:15,344 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:13:15,350 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:13:15,384 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:13:15,385 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:13:15,394 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 85 [2024-10-31 22:13:15,397 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 90 places, 82 transitions, 173 flow. Second operand has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 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) [2024-10-31 22:13:15,397 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:13:15,397 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 85 [2024-10-31 22:13:15,398 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:13:18,883 INFO L124 PetriNetUnfolderBase]: 6180/9853 cut-off events. [2024-10-31 22:13:18,884 INFO L125 PetriNetUnfolderBase]: For 16/16 co-relation queries the response was YES. [2024-10-31 22:13:18,912 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18717 conditions, 9853 events. 6180/9853 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 770. Compared 78317 event pairs, 6180 based on Foata normal form. 392/6509 useless extension candidates. Maximal degree in co-relation 18706. Up to 8793 conditions per place. [2024-10-31 22:13:18,995 INFO L140 encePairwiseOnDemand]: 50/85 looper letters, 32 selfloop transitions, 1 changer transitions 0/47 dead transitions. [2024-10-31 22:13:18,996 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 47 transitions, 169 flow [2024-10-31 22:13:18,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:13:19,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:13:19,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 118 transitions. [2024-10-31 22:13:19,017 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4627450980392157 [2024-10-31 22:13:19,019 INFO L175 Difference]: Start difference. First operand has 90 places, 82 transitions, 173 flow. Second operand 3 states and 118 transitions. [2024-10-31 22:13:19,024 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 47 transitions, 169 flow [2024-10-31 22:13:19,033 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 47 transitions, 166 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-10-31 22:13:19,042 INFO L231 Difference]: Finished difference. Result has 56 places, 47 transitions, 102 flow [2024-10-31 22:13:19,052 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=85, PETRI_DIFFERENCE_MINUEND_FLOW=100, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=47, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=46, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=102, PETRI_PLACES=56, PETRI_TRANSITIONS=47} [2024-10-31 22:13:19,061 INFO L277 CegarLoopForPetriNet]: 90 programPoint places, -34 predicate places. [2024-10-31 22:13:19,062 INFO L471 AbstractCegarLoop]: Abstraction has has 56 places, 47 transitions, 102 flow [2024-10-31 22:13:19,062 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 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) [2024-10-31 22:13:19,063 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:13:19,064 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2024-10-31 22:13:19,067 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-31 22:13:19,068 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting P0Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [P0Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, P0Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, P0Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 82 more)] === [2024-10-31 22:13:19,069 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:13:19,069 INFO L85 PathProgramCache]: Analyzing trace with hash 906594749, now seen corresponding path program 1 times [2024-10-31 22:13:19,069 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:13:19,070 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [120860509] [2024-10-31 22:13:19,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:13:19,070 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:13:19,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:13:19,340 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:13:19,341 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:13:19,341 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [120860509] [2024-10-31 22:13:19,341 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [120860509] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:13:19,342 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:13:19,342 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-10-31 22:13:19,342 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1231997698] [2024-10-31 22:13:19,342 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:13:19,344 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:13:19,344 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:13:19,345 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:13:19,345 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:13:19,346 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 85 [2024-10-31 22:13:19,347 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 47 transitions, 102 flow. Second operand has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 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) [2024-10-31 22:13:19,348 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:13:19,348 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 85 [2024-10-31 22:13:19,348 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:13:20,300 INFO L124 PetriNetUnfolderBase]: 1452/2501 cut-off events. [2024-10-31 22:13:20,300 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-31 22:13:20,307 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4692 conditions, 2501 events. 1452/2501 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 179. Compared 17237 event pairs, 1452 based on Foata normal form. 0/2201 useless extension candidates. Maximal degree in co-relation 4686. Up to 2149 conditions per place. [2024-10-31 22:13:20,326 INFO L140 encePairwiseOnDemand]: 76/85 looper letters, 24 selfloop transitions, 1 changer transitions 0/39 dead transitions. [2024-10-31 22:13:20,326 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 39 transitions, 136 flow [2024-10-31 22:13:20,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:13:20,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:13:20,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 84 transitions. [2024-10-31 22:13:20,329 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.32941176470588235 [2024-10-31 22:13:20,329 INFO L175 Difference]: Start difference. First operand has 56 places, 47 transitions, 102 flow. Second operand 3 states and 84 transitions. [2024-10-31 22:13:20,329 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 39 transitions, 136 flow [2024-10-31 22:13:20,330 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 39 transitions, 135 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-31 22:13:20,330 INFO L231 Difference]: Finished difference. Result has 49 places, 39 transitions, 87 flow [2024-10-31 22:13:20,331 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=85, PETRI_DIFFERENCE_MINUEND_FLOW=85, PETRI_DIFFERENCE_MINUEND_PLACES=47, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=87, PETRI_PLACES=49, PETRI_TRANSITIONS=39} [2024-10-31 22:13:20,333 INFO L277 CegarLoopForPetriNet]: 90 programPoint places, -41 predicate places. [2024-10-31 22:13:20,333 INFO L471 AbstractCegarLoop]: Abstraction has has 49 places, 39 transitions, 87 flow [2024-10-31 22:13:20,333 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 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) [2024-10-31 22:13:20,334 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:13:20,335 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2024-10-31 22:13:20,335 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-31 22:13:20,336 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting P1Err0ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, P0Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, P0Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 82 more)] === [2024-10-31 22:13:20,337 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:13:20,337 INFO L85 PathProgramCache]: Analyzing trace with hash -1960812914, now seen corresponding path program 1 times [2024-10-31 22:13:20,337 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:13:20,337 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [699169985] [2024-10-31 22:13:20,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:13:20,338 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:13:20,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:13:20,534 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:13:20,535 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:13:20,535 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [699169985] [2024-10-31 22:13:20,536 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [699169985] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:13:20,536 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:13:20,537 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-10-31 22:13:20,537 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1808831114] [2024-10-31 22:13:20,537 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:13:20,537 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:13:20,538 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:13:20,538 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:13:20,539 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:13:20,539 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 85 [2024-10-31 22:13:20,541 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 39 transitions, 87 flow. Second operand has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 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) [2024-10-31 22:13:20,541 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:13:20,541 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 85 [2024-10-31 22:13:20,541 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:13:21,275 INFO L124 PetriNetUnfolderBase]: 1135/1908 cut-off events. [2024-10-31 22:13:21,275 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-31 22:13:21,280 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3639 conditions, 1908 events. 1135/1908 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 137. Compared 12371 event pairs, 184 based on Foata normal form. 0/1803 useless extension candidates. Maximal degree in co-relation 3632. Up to 1366 conditions per place. [2024-10-31 22:13:21,288 INFO L140 encePairwiseOnDemand]: 82/85 looper letters, 37 selfloop transitions, 2 changer transitions 2/55 dead transitions. [2024-10-31 22:13:21,288 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 55 transitions, 203 flow [2024-10-31 22:13:21,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:13:21,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:13:21,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 93 transitions. [2024-10-31 22:13:21,291 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.36470588235294116 [2024-10-31 22:13:21,291 INFO L175 Difference]: Start difference. First operand has 49 places, 39 transitions, 87 flow. Second operand 3 states and 93 transitions. [2024-10-31 22:13:21,292 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 55 transitions, 203 flow [2024-10-31 22:13:21,294 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 55 transitions, 202 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-31 22:13:21,295 INFO L231 Difference]: Finished difference. Result has 49 places, 37 transitions, 86 flow [2024-10-31 22:13:21,295 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=85, PETRI_DIFFERENCE_MINUEND_FLOW=84, PETRI_DIFFERENCE_MINUEND_PLACES=47, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=86, PETRI_PLACES=49, PETRI_TRANSITIONS=37} [2024-10-31 22:13:21,296 INFO L277 CegarLoopForPetriNet]: 90 programPoint places, -41 predicate places. [2024-10-31 22:13:21,296 INFO L471 AbstractCegarLoop]: Abstraction has has 49 places, 37 transitions, 86 flow [2024-10-31 22:13:21,297 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 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) [2024-10-31 22:13:21,297 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:13:21,297 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:13:21,297 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-31 22:13:21,297 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [P0Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, P0Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, P0Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 82 more)] === [2024-10-31 22:13:21,298 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:13:21,298 INFO L85 PathProgramCache]: Analyzing trace with hash -170413941, now seen corresponding path program 1 times [2024-10-31 22:13:21,298 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:13:21,298 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1231913676] [2024-10-31 22:13:21,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:13:21,299 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:13:21,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:13:21,435 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:13:21,435 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:13:21,435 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1231913676] [2024-10-31 22:13:21,435 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1231913676] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:13:21,435 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:13:21,436 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-10-31 22:13:21,436 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1405368407] [2024-10-31 22:13:21,436 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:13:21,436 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:13:21,437 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:13:21,437 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:13:21,437 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:13:21,437 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 85 [2024-10-31 22:13:21,438 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 37 transitions, 86 flow. Second operand has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 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) [2024-10-31 22:13:21,438 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:13:21,438 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 85 [2024-10-31 22:13:21,438 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:13:22,160 INFO L124 PetriNetUnfolderBase]: 973/1734 cut-off events. [2024-10-31 22:13:22,160 INFO L125 PetriNetUnfolderBase]: For 120/120 co-relation queries the response was YES. [2024-10-31 22:13:22,166 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3352 conditions, 1734 events. 973/1734 cut-off events. For 120/120 co-relation queries the response was YES. Maximal size of possible extension queue 127. Compared 11299 event pairs, 211 based on Foata normal form. 0/1653 useless extension candidates. Maximal degree in co-relation 3344. Up to 1171 conditions per place. [2024-10-31 22:13:22,175 INFO L140 encePairwiseOnDemand]: 81/85 looper letters, 33 selfloop transitions, 2 changer transitions 0/49 dead transitions. [2024-10-31 22:13:22,175 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 49 transitions, 182 flow [2024-10-31 22:13:22,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:13:22,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:13:22,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 88 transitions. [2024-10-31 22:13:22,177 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.34509803921568627 [2024-10-31 22:13:22,177 INFO L175 Difference]: Start difference. First operand has 49 places, 37 transitions, 86 flow. Second operand 3 states and 88 transitions. [2024-10-31 22:13:22,177 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 49 transitions, 182 flow [2024-10-31 22:13:22,179 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 49 transitions, 176 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-31 22:13:22,180 INFO L231 Difference]: Finished difference. Result has 49 places, 37 transitions, 92 flow [2024-10-31 22:13:22,181 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=85, PETRI_DIFFERENCE_MINUEND_FLOW=82, PETRI_DIFFERENCE_MINUEND_PLACES=46, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=92, PETRI_PLACES=49, PETRI_TRANSITIONS=37} [2024-10-31 22:13:22,182 INFO L277 CegarLoopForPetriNet]: 90 programPoint places, -41 predicate places. [2024-10-31 22:13:22,182 INFO L471 AbstractCegarLoop]: Abstraction has has 49 places, 37 transitions, 92 flow [2024-10-31 22:13:22,182 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 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) [2024-10-31 22:13:22,182 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:13:22,183 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:13:22,183 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-31 22:13:22,183 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [P0Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, P0Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, P0Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 82 more)] === [2024-10-31 22:13:22,184 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:13:22,184 INFO L85 PathProgramCache]: Analyzing trace with hash -558936070, now seen corresponding path program 1 times [2024-10-31 22:13:22,184 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:13:22,185 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [532711190] [2024-10-31 22:13:22,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:13:22,185 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:13:22,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:13:22,340 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:13:22,340 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:13:22,340 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [532711190] [2024-10-31 22:13:22,341 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [532711190] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:13:22,341 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:13:22,341 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-31 22:13:22,341 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [221654394] [2024-10-31 22:13:22,342 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:13:22,342 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-31 22:13:22,342 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:13:22,343 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-31 22:13:22,343 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-31 22:13:22,346 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 85 [2024-10-31 22:13:22,347 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 37 transitions, 92 flow. Second operand has 4 states, 4 states have (on average 19.75) internal successors, (79), 4 states have internal predecessors, (79), 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) [2024-10-31 22:13:22,347 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:13:22,347 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 85 [2024-10-31 22:13:22,347 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:13:23,125 INFO L124 PetriNetUnfolderBase]: 898/1623 cut-off events. [2024-10-31 22:13:23,126 INFO L125 PetriNetUnfolderBase]: For 120/120 co-relation queries the response was YES. [2024-10-31 22:13:23,131 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3239 conditions, 1623 events. 898/1623 cut-off events. For 120/120 co-relation queries the response was YES. Maximal size of possible extension queue 117. Compared 10605 event pairs, 187 based on Foata normal form. 0/1614 useless extension candidates. Maximal degree in co-relation 3230. Up to 1059 conditions per place. [2024-10-31 22:13:23,138 INFO L140 encePairwiseOnDemand]: 82/85 looper letters, 32 selfloop transitions, 2 changer transitions 0/48 dead transitions. [2024-10-31 22:13:23,139 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 48 transitions, 180 flow [2024-10-31 22:13:23,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-31 22:13:23,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-31 22:13:23,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 103 transitions. [2024-10-31 22:13:23,142 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.3029411764705882 [2024-10-31 22:13:23,142 INFO L175 Difference]: Start difference. First operand has 49 places, 37 transitions, 92 flow. Second operand 4 states and 103 transitions. [2024-10-31 22:13:23,142 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 48 transitions, 180 flow [2024-10-31 22:13:23,143 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 48 transitions, 176 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-31 22:13:23,146 INFO L231 Difference]: Finished difference. Result has 49 places, 36 transitions, 88 flow [2024-10-31 22:13:23,147 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=85, PETRI_DIFFERENCE_MINUEND_FLOW=84, PETRI_DIFFERENCE_MINUEND_PLACES=46, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=88, PETRI_PLACES=49, PETRI_TRANSITIONS=36} [2024-10-31 22:13:23,148 INFO L277 CegarLoopForPetriNet]: 90 programPoint places, -41 predicate places. [2024-10-31 22:13:23,149 INFO L471 AbstractCegarLoop]: Abstraction has has 49 places, 36 transitions, 88 flow [2024-10-31 22:13:23,149 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.75) internal successors, (79), 4 states have internal predecessors, (79), 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) [2024-10-31 22:13:23,149 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:13:23,150 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:13:23,150 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-31 22:13:23,150 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [P0Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, P0Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, P0Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 82 more)] === [2024-10-31 22:13:23,150 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:13:23,153 INFO L85 PathProgramCache]: Analyzing trace with hash -558936069, now seen corresponding path program 1 times [2024-10-31 22:13:23,154 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:13:23,154 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [610329576] [2024-10-31 22:13:23,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:13:23,155 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:13:23,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:13:23,642 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:13:23,642 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:13:23,642 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [610329576] [2024-10-31 22:13:23,646 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [610329576] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:13:23,647 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:13:23,647 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:13:23,647 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1907629117] [2024-10-31 22:13:23,647 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:13:23,648 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-31 22:13:23,648 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:13:23,649 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-31 22:13:23,649 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-31 22:13:23,649 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 85 [2024-10-31 22:13:23,650 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 36 transitions, 88 flow. Second operand has 4 states, 4 states have (on average 19.75) internal successors, (79), 4 states have internal predecessors, (79), 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) [2024-10-31 22:13:23,650 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:13:23,650 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 85 [2024-10-31 22:13:23,650 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:13:24,256 INFO L124 PetriNetUnfolderBase]: 823/1512 cut-off events. [2024-10-31 22:13:24,257 INFO L125 PetriNetUnfolderBase]: For 120/120 co-relation queries the response was YES. [2024-10-31 22:13:24,261 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2981 conditions, 1512 events. 823/1512 cut-off events. For 120/120 co-relation queries the response was YES. Maximal size of possible extension queue 107. Compared 9746 event pairs, 163 based on Foata normal form. 36/1539 useless extension candidates. Maximal degree in co-relation 2972. Up to 948 conditions per place. [2024-10-31 22:13:24,266 INFO L140 encePairwiseOnDemand]: 82/85 looper letters, 31 selfloop transitions, 2 changer transitions 0/47 dead transitions. [2024-10-31 22:13:24,266 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 47 transitions, 174 flow [2024-10-31 22:13:24,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-31 22:13:24,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-31 22:13:24,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 102 transitions. [2024-10-31 22:13:24,268 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.3 [2024-10-31 22:13:24,268 INFO L175 Difference]: Start difference. First operand has 49 places, 36 transitions, 88 flow. Second operand 4 states and 102 transitions. [2024-10-31 22:13:24,268 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 47 transitions, 174 flow [2024-10-31 22:13:24,269 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 47 transitions, 169 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-10-31 22:13:24,270 INFO L231 Difference]: Finished difference. Result has 48 places, 35 transitions, 83 flow [2024-10-31 22:13:24,270 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=85, PETRI_DIFFERENCE_MINUEND_FLOW=79, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=83, PETRI_PLACES=48, PETRI_TRANSITIONS=35} [2024-10-31 22:13:24,271 INFO L277 CegarLoopForPetriNet]: 90 programPoint places, -42 predicate places. [2024-10-31 22:13:24,271 INFO L471 AbstractCegarLoop]: Abstraction has has 48 places, 35 transitions, 83 flow [2024-10-31 22:13:24,271 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.75) internal successors, (79), 4 states have internal predecessors, (79), 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) [2024-10-31 22:13:24,272 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:13:24,272 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:13:24,272 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-31 22:13:24,272 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, P0Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, P0Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 82 more)] === [2024-10-31 22:13:24,273 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:13:24,273 INFO L85 PathProgramCache]: Analyzing trace with hash -336385564, now seen corresponding path program 1 times [2024-10-31 22:13:24,273 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:13:24,273 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1698908725] [2024-10-31 22:13:24,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:13:24,274 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:13:24,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:13:24,345 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:13:24,345 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:13:24,345 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1698908725] [2024-10-31 22:13:24,345 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1698908725] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:13:24,346 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:13:24,346 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-10-31 22:13:24,346 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [583653559] [2024-10-31 22:13:24,346 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:13:24,346 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:13:24,347 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:13:24,347 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:13:24,347 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:13:24,347 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 85 [2024-10-31 22:13:24,348 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 35 transitions, 83 flow. Second operand has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 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) [2024-10-31 22:13:24,348 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:13:24,348 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 85 [2024-10-31 22:13:24,348 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:13:24,841 INFO L124 PetriNetUnfolderBase]: 823/1473 cut-off events. [2024-10-31 22:13:24,841 INFO L125 PetriNetUnfolderBase]: For 96/96 co-relation queries the response was YES. [2024-10-31 22:13:24,846 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2941 conditions, 1473 events. 823/1473 cut-off events. For 96/96 co-relation queries the response was YES. Maximal size of possible extension queue 102. Compared 9487 event pairs, 823 based on Foata normal form. 48/1485 useless extension candidates. Maximal degree in co-relation 2933. Up to 1238 conditions per place. [2024-10-31 22:13:24,854 INFO L140 encePairwiseOnDemand]: 83/85 looper letters, 19 selfloop transitions, 1 changer transitions 1/34 dead transitions. [2024-10-31 22:13:24,854 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 34 transitions, 123 flow [2024-10-31 22:13:24,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:13:24,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:13:24,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 70 transitions. [2024-10-31 22:13:24,855 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.27450980392156865 [2024-10-31 22:13:24,856 INFO L175 Difference]: Start difference. First operand has 48 places, 35 transitions, 83 flow. Second operand 3 states and 70 transitions. [2024-10-31 22:13:24,856 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 49 places, 34 transitions, 123 flow [2024-10-31 22:13:24,857 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 34 transitions, 120 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-31 22:13:24,857 INFO L231 Difference]: Finished difference. Result has 47 places, 33 transitions, 78 flow [2024-10-31 22:13:24,858 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=85, PETRI_DIFFERENCE_MINUEND_FLOW=78, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=34, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=78, PETRI_PLACES=47, PETRI_TRANSITIONS=33} [2024-10-31 22:13:24,859 INFO L277 CegarLoopForPetriNet]: 90 programPoint places, -43 predicate places. [2024-10-31 22:13:24,860 INFO L471 AbstractCegarLoop]: Abstraction has has 47 places, 33 transitions, 78 flow [2024-10-31 22:13:24,860 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 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) [2024-10-31 22:13:24,860 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:13:24,860 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:13:24,860 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-31 22:13:24,861 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, P0Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, P0Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 82 more)] === [2024-10-31 22:13:24,861 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:13:24,862 INFO L85 PathProgramCache]: Analyzing trace with hash -336387031, now seen corresponding path program 1 times [2024-10-31 22:13:24,862 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:13:24,862 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [711404669] [2024-10-31 22:13:24,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:13:24,863 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:13:24,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:13:25,107 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:13:25,108 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:13:25,108 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [711404669] [2024-10-31 22:13:25,108 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [711404669] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:13:25,109 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:13:25,109 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-31 22:13:25,109 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1035174751] [2024-10-31 22:13:25,109 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:13:25,110 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-31 22:13:25,110 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:13:25,111 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-31 22:13:25,111 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-31 22:13:25,118 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 85 [2024-10-31 22:13:25,119 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 33 transitions, 78 flow. Second operand has 5 states, 5 states have (on average 17.4) internal successors, (87), 5 states have internal predecessors, (87), 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) [2024-10-31 22:13:25,119 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:13:25,119 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 85 [2024-10-31 22:13:25,119 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:13:26,187 INFO L124 PetriNetUnfolderBase]: 1367/2354 cut-off events. [2024-10-31 22:13:26,187 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-31 22:13:26,194 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4770 conditions, 2354 events. 1367/2354 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 145. Compared 14636 event pairs, 199 based on Foata normal form. 0/2279 useless extension candidates. Maximal degree in co-relation 4762. Up to 1159 conditions per place. [2024-10-31 22:13:26,200 INFO L140 encePairwiseOnDemand]: 79/85 looper letters, 32 selfloop transitions, 2 changer transitions 44/89 dead transitions. [2024-10-31 22:13:26,201 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 53 places, 89 transitions, 362 flow [2024-10-31 22:13:26,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-31 22:13:26,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-10-31 22:13:26,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 200 transitions. [2024-10-31 22:13:26,202 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.29411764705882354 [2024-10-31 22:13:26,203 INFO L175 Difference]: Start difference. First operand has 47 places, 33 transitions, 78 flow. Second operand 8 states and 200 transitions. [2024-10-31 22:13:26,203 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 53 places, 89 transitions, 362 flow [2024-10-31 22:13:26,203 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 89 transitions, 361 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-31 22:13:26,207 INFO L231 Difference]: Finished difference. Result has 57 places, 32 transitions, 91 flow [2024-10-31 22:13:26,207 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=85, PETRI_DIFFERENCE_MINUEND_FLOW=77, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=33, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=91, PETRI_PLACES=57, PETRI_TRANSITIONS=32} [2024-10-31 22:13:26,207 INFO L277 CegarLoopForPetriNet]: 90 programPoint places, -33 predicate places. [2024-10-31 22:13:26,208 INFO L471 AbstractCegarLoop]: Abstraction has has 57 places, 32 transitions, 91 flow [2024-10-31 22:13:26,208 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.4) internal successors, (87), 5 states have internal predecessors, (87), 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) [2024-10-31 22:13:26,208 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:13:26,208 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:13:26,208 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-31 22:13:26,208 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, P0Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, P0Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 82 more)] === [2024-10-31 22:13:26,209 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:13:26,209 INFO L85 PathProgramCache]: Analyzing trace with hash 1136377256, now seen corresponding path program 1 times [2024-10-31 22:13:26,209 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:13:26,209 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [78767679] [2024-10-31 22:13:26,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:13:26,212 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:13:26,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:13:26,455 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:13:26,456 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:13:26,456 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [78767679] [2024-10-31 22:13:26,456 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [78767679] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:13:26,456 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:13:26,457 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-31 22:13:26,457 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [64140614] [2024-10-31 22:13:26,457 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:13:26,457 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-31 22:13:26,458 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:13:26,458 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-31 22:13:26,458 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-31 22:13:26,468 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 85 [2024-10-31 22:13:26,468 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 32 transitions, 91 flow. Second operand has 6 states, 6 states have (on average 16.166666666666668) internal successors, (97), 6 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:13:26,468 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:13:26,468 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 85 [2024-10-31 22:13:26,469 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:13:27,543 INFO L124 PetriNetUnfolderBase]: 1466/2498 cut-off events. [2024-10-31 22:13:27,543 INFO L125 PetriNetUnfolderBase]: For 342/342 co-relation queries the response was YES. [2024-10-31 22:13:27,554 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5467 conditions, 2498 events. 1466/2498 cut-off events. For 342/342 co-relation queries the response was YES. Maximal size of possible extension queue 151. Compared 15401 event pairs, 351 based on Foata normal form. 60/2527 useless extension candidates. Maximal degree in co-relation 5453. Up to 790 conditions per place. [2024-10-31 22:13:27,560 INFO L140 encePairwiseOnDemand]: 79/85 looper letters, 33 selfloop transitions, 3 changer transitions 37/83 dead transitions. [2024-10-31 22:13:27,560 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 83 transitions, 358 flow [2024-10-31 22:13:27,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-31 22:13:27,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-10-31 22:13:27,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 187 transitions. [2024-10-31 22:13:27,562 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.275 [2024-10-31 22:13:27,562 INFO L175 Difference]: Start difference. First operand has 57 places, 32 transitions, 91 flow. Second operand 8 states and 187 transitions. [2024-10-31 22:13:27,562 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 83 transitions, 358 flow [2024-10-31 22:13:27,575 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 83 transitions, 336 flow, removed 8 selfloop flow, removed 6 redundant places. [2024-10-31 22:13:27,576 INFO L231 Difference]: Finished difference. Result has 58 places, 32 transitions, 101 flow [2024-10-31 22:13:27,576 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=85, PETRI_DIFFERENCE_MINUEND_FLOW=79, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=32, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=101, PETRI_PLACES=58, PETRI_TRANSITIONS=32} [2024-10-31 22:13:27,577 INFO L277 CegarLoopForPetriNet]: 90 programPoint places, -32 predicate places. [2024-10-31 22:13:27,577 INFO L471 AbstractCegarLoop]: Abstraction has has 58 places, 32 transitions, 101 flow [2024-10-31 22:13:27,577 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 16.166666666666668) internal successors, (97), 6 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:13:27,577 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:13:27,578 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:13:27,578 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-31 22:13:27,578 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, P0Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, P0Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 82 more)] === [2024-10-31 22:13:27,578 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:13:27,579 INFO L85 PathProgramCache]: Analyzing trace with hash 767282154, now seen corresponding path program 1 times [2024-10-31 22:13:27,579 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:13:27,579 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [235818011] [2024-10-31 22:13:27,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:13:27,579 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:13:27,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:13:29,047 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:13:29,047 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:13:29,048 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [235818011] [2024-10-31 22:13:29,048 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [235818011] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:13:29,048 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:13:29,049 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-31 22:13:29,049 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1604239512] [2024-10-31 22:13:29,049 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:13:29,049 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-31 22:13:29,050 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:13:29,050 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-31 22:13:29,050 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-31 22:13:29,056 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 85 [2024-10-31 22:13:29,057 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 32 transitions, 101 flow. Second operand has 7 states, 7 states have (on average 17.857142857142858) internal successors, (125), 7 states have internal predecessors, (125), 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) [2024-10-31 22:13:29,057 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:13:29,058 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 85 [2024-10-31 22:13:29,058 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:13:30,081 INFO L124 PetriNetUnfolderBase]: 653/1219 cut-off events. [2024-10-31 22:13:30,081 INFO L125 PetriNetUnfolderBase]: For 441/441 co-relation queries the response was YES. [2024-10-31 22:13:30,087 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2693 conditions, 1219 events. 653/1219 cut-off events. For 441/441 co-relation queries the response was YES. Maximal size of possible extension queue 90. Compared 7129 event pairs, 297 based on Foata normal form. 38/1223 useless extension candidates. Maximal degree in co-relation 2677. Up to 753 conditions per place. [2024-10-31 22:13:30,091 INFO L140 encePairwiseOnDemand]: 76/85 looper letters, 33 selfloop transitions, 8 changer transitions 35/88 dead transitions. [2024-10-31 22:13:30,092 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 88 transitions, 393 flow [2024-10-31 22:13:30,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-10-31 22:13:30,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2024-10-31 22:13:30,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 255 transitions. [2024-10-31 22:13:30,094 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.2727272727272727 [2024-10-31 22:13:30,095 INFO L175 Difference]: Start difference. First operand has 58 places, 32 transitions, 101 flow. Second operand 11 states and 255 transitions. [2024-10-31 22:13:30,095 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 64 places, 88 transitions, 393 flow [2024-10-31 22:13:30,103 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 88 transitions, 353 flow, removed 16 selfloop flow, removed 8 redundant places. [2024-10-31 22:13:30,104 INFO L231 Difference]: Finished difference. Result has 65 places, 39 transitions, 157 flow [2024-10-31 22:13:30,105 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=85, PETRI_DIFFERENCE_MINUEND_FLOW=81, PETRI_DIFFERENCE_MINUEND_PLACES=46, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=32, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=157, PETRI_PLACES=65, PETRI_TRANSITIONS=39} [2024-10-31 22:13:30,106 INFO L277 CegarLoopForPetriNet]: 90 programPoint places, -25 predicate places. [2024-10-31 22:13:30,106 INFO L471 AbstractCegarLoop]: Abstraction has has 65 places, 39 transitions, 157 flow [2024-10-31 22:13:30,106 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.857142857142858) internal successors, (125), 7 states have internal predecessors, (125), 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) [2024-10-31 22:13:30,107 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:13:30,107 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:13:30,107 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-31 22:13:30,107 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, P0Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, P0Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 82 more)] === [2024-10-31 22:13:30,107 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:13:30,107 INFO L85 PathProgramCache]: Analyzing trace with hash -1501599342, now seen corresponding path program 1 times [2024-10-31 22:13:30,108 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:13:30,108 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1568525069] [2024-10-31 22:13:30,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:13:30,108 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:13:30,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:13:33,680 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:13:33,680 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:13:33,681 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1568525069] [2024-10-31 22:13:33,681 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1568525069] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:13:33,681 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:13:33,681 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-31 22:13:33,681 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [378168893] [2024-10-31 22:13:33,682 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:13:33,682 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-31 22:13:33,682 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:13:33,683 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-31 22:13:33,683 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-10-31 22:13:33,686 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 85 [2024-10-31 22:13:33,686 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 65 places, 39 transitions, 157 flow. Second operand has 8 states, 8 states have (on average 17.75) internal successors, (142), 8 states have internal predecessors, (142), 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) [2024-10-31 22:13:33,687 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:13:33,687 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 85 [2024-10-31 22:13:33,687 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:13:34,509 INFO L124 PetriNetUnfolderBase]: 629/1175 cut-off events. [2024-10-31 22:13:34,509 INFO L125 PetriNetUnfolderBase]: For 1684/1700 co-relation queries the response was YES. [2024-10-31 22:13:34,515 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3492 conditions, 1175 events. 629/1175 cut-off events. For 1684/1700 co-relation queries the response was YES. Maximal size of possible extension queue 80. Compared 6718 event pairs, 298 based on Foata normal form. 37/1171 useless extension candidates. Maximal degree in co-relation 3473. Up to 663 conditions per place. [2024-10-31 22:13:34,519 INFO L140 encePairwiseOnDemand]: 75/85 looper letters, 37 selfloop transitions, 11 changer transitions 31/91 dead transitions. [2024-10-31 22:13:34,519 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 91 transitions, 542 flow [2024-10-31 22:13:34,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-10-31 22:13:34,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2024-10-31 22:13:34,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 252 transitions. [2024-10-31 22:13:34,521 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.2695187165775401 [2024-10-31 22:13:34,521 INFO L175 Difference]: Start difference. First operand has 65 places, 39 transitions, 157 flow. Second operand 11 states and 252 transitions. [2024-10-31 22:13:34,522 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 91 transitions, 542 flow [2024-10-31 22:13:34,526 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 65 places, 91 transitions, 522 flow, removed 10 selfloop flow, removed 4 redundant places. [2024-10-31 22:13:34,527 INFO L231 Difference]: Finished difference. Result has 73 places, 45 transitions, 251 flow [2024-10-31 22:13:34,527 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=85, PETRI_DIFFERENCE_MINUEND_FLOW=149, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=251, PETRI_PLACES=73, PETRI_TRANSITIONS=45} [2024-10-31 22:13:34,528 INFO L277 CegarLoopForPetriNet]: 90 programPoint places, -17 predicate places. [2024-10-31 22:13:34,528 INFO L471 AbstractCegarLoop]: Abstraction has has 73 places, 45 transitions, 251 flow [2024-10-31 22:13:34,529 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 17.75) internal successors, (142), 8 states have internal predecessors, (142), 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) [2024-10-31 22:13:34,529 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:13:34,529 INFO L204 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] [2024-10-31 22:13:34,529 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-31 22:13:34,529 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, P0Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, P0Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 82 more)] === [2024-10-31 22:13:34,530 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:13:34,530 INFO L85 PathProgramCache]: Analyzing trace with hash -962692244, now seen corresponding path program 1 times [2024-10-31 22:13:34,530 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:13:34,530 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2105191869] [2024-10-31 22:13:34,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:13:34,531 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:13:34,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:13:34,737 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:13:34,737 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:13:34,738 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2105191869] [2024-10-31 22:13:34,738 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2105191869] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:13:34,738 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:13:34,738 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-31 22:13:34,738 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [893975514] [2024-10-31 22:13:34,738 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:13:34,739 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-31 22:13:34,739 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:13:34,739 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-31 22:13:34,740 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-31 22:13:34,746 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 85 [2024-10-31 22:13:34,746 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 73 places, 45 transitions, 251 flow. Second operand has 4 states, 4 states have (on average 16.75) internal successors, (67), 4 states have internal predecessors, (67), 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) [2024-10-31 22:13:34,746 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:13:34,746 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 85 [2024-10-31 22:13:34,746 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:13:35,270 INFO L124 PetriNetUnfolderBase]: 1425/2279 cut-off events. [2024-10-31 22:13:35,270 INFO L125 PetriNetUnfolderBase]: For 6995/7052 co-relation queries the response was YES. [2024-10-31 22:13:35,285 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7960 conditions, 2279 events. 1425/2279 cut-off events. For 6995/7052 co-relation queries the response was YES. Maximal size of possible extension queue 124. Compared 11915 event pairs, 145 based on Foata normal form. 103/2365 useless extension candidates. Maximal degree in co-relation 7935. Up to 1317 conditions per place. [2024-10-31 22:13:35,295 INFO L140 encePairwiseOnDemand]: 79/85 looper letters, 65 selfloop transitions, 5 changer transitions 1/79 dead transitions. [2024-10-31 22:13:35,295 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 70 places, 79 transitions, 612 flow [2024-10-31 22:13:35,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-31 22:13:35,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-31 22:13:35,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 101 transitions. [2024-10-31 22:13:35,298 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.29705882352941176 [2024-10-31 22:13:35,298 INFO L175 Difference]: Start difference. First operand has 73 places, 45 transitions, 251 flow. Second operand 4 states and 101 transitions. [2024-10-31 22:13:35,298 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 70 places, 79 transitions, 612 flow [2024-10-31 22:13:35,308 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 79 transitions, 524 flow, removed 31 selfloop flow, removed 9 redundant places. [2024-10-31 22:13:35,309 INFO L231 Difference]: Finished difference. Result has 63 places, 47 transitions, 234 flow [2024-10-31 22:13:35,310 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=85, PETRI_DIFFERENCE_MINUEND_FLOW=200, PETRI_DIFFERENCE_MINUEND_PLACES=58, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=234, PETRI_PLACES=63, PETRI_TRANSITIONS=47} [2024-10-31 22:13:35,311 INFO L277 CegarLoopForPetriNet]: 90 programPoint places, -27 predicate places. [2024-10-31 22:13:35,311 INFO L471 AbstractCegarLoop]: Abstraction has has 63 places, 47 transitions, 234 flow [2024-10-31 22:13:35,311 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.75) internal successors, (67), 4 states have internal predecessors, (67), 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) [2024-10-31 22:13:35,311 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:13:35,311 INFO L204 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] [2024-10-31 22:13:35,312 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-10-31 22:13:35,312 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, P0Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, P0Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 82 more)] === [2024-10-31 22:13:35,312 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:13:35,312 INFO L85 PathProgramCache]: Analyzing trace with hash 873900905, now seen corresponding path program 1 times [2024-10-31 22:13:35,313 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:13:35,313 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [914064178] [2024-10-31 22:13:35,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:13:35,313 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:13:35,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:13:35,741 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:13:35,742 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:13:35,742 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [914064178] [2024-10-31 22:13:35,742 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [914064178] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:13:35,745 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:13:35,745 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-31 22:13:35,746 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [488745396] [2024-10-31 22:13:35,746 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:13:35,746 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-31 22:13:35,746 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:13:35,747 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-31 22:13:35,747 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-31 22:13:35,766 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 85 [2024-10-31 22:13:35,766 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 47 transitions, 234 flow. Second operand has 5 states, 5 states have (on average 16.4) internal successors, (82), 5 states have internal predecessors, (82), 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) [2024-10-31 22:13:35,767 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:13:35,767 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 85 [2024-10-31 22:13:35,767 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:13:36,243 INFO L124 PetriNetUnfolderBase]: 921/1508 cut-off events. [2024-10-31 22:13:36,244 INFO L125 PetriNetUnfolderBase]: For 2468/2500 co-relation queries the response was YES. [2024-10-31 22:13:36,247 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4814 conditions, 1508 events. 921/1508 cut-off events. For 2468/2500 co-relation queries the response was YES. Maximal size of possible extension queue 72. Compared 7031 event pairs, 69 based on Foata normal form. 83/1576 useless extension candidates. Maximal degree in co-relation 4794. Up to 625 conditions per place. [2024-10-31 22:13:36,252 INFO L140 encePairwiseOnDemand]: 79/85 looper letters, 66 selfloop transitions, 8 changer transitions 1/83 dead transitions. [2024-10-31 22:13:36,252 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 67 places, 83 transitions, 574 flow [2024-10-31 22:13:36,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-31 22:13:36,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-10-31 22:13:36,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 124 transitions. [2024-10-31 22:13:36,254 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.2917647058823529 [2024-10-31 22:13:36,254 INFO L175 Difference]: Start difference. First operand has 63 places, 47 transitions, 234 flow. Second operand 5 states and 124 transitions. [2024-10-31 22:13:36,254 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 67 places, 83 transitions, 574 flow [2024-10-31 22:13:36,258 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 65 places, 83 transitions, 546 flow, removed 10 selfloop flow, removed 2 redundant places. [2024-10-31 22:13:36,259 INFO L231 Difference]: Finished difference. Result has 67 places, 48 transitions, 254 flow [2024-10-31 22:13:36,259 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=85, PETRI_DIFFERENCE_MINUEND_FLOW=206, PETRI_DIFFERENCE_MINUEND_PLACES=61, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=45, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=254, PETRI_PLACES=67, PETRI_TRANSITIONS=48} [2024-10-31 22:13:36,260 INFO L277 CegarLoopForPetriNet]: 90 programPoint places, -23 predicate places. [2024-10-31 22:13:36,260 INFO L471 AbstractCegarLoop]: Abstraction has has 67 places, 48 transitions, 254 flow [2024-10-31 22:13:36,260 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 5 states have internal predecessors, (82), 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) [2024-10-31 22:13:36,261 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:13:36,261 INFO L204 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] [2024-10-31 22:13:36,261 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-10-31 22:13:36,261 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, P0Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, P0Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 82 more)] === [2024-10-31 22:13:36,262 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:13:36,262 INFO L85 PathProgramCache]: Analyzing trace with hash 643374702, now seen corresponding path program 1 times [2024-10-31 22:13:36,262 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:13:36,262 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [796861651] [2024-10-31 22:13:36,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:13:36,263 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:13:36,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:13:36,708 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:13:36,709 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:13:36,709 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [796861651] [2024-10-31 22:13:36,709 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [796861651] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:13:36,709 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:13:36,709 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-31 22:13:36,710 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2001178959] [2024-10-31 22:13:36,710 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:13:36,710 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-31 22:13:36,710 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:13:36,711 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-31 22:13:36,711 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-10-31 22:13:36,716 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 85 [2024-10-31 22:13:36,716 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 67 places, 48 transitions, 254 flow. Second operand has 6 states, 6 states have (on average 16.166666666666668) internal successors, (97), 6 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:13:36,717 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:13:36,717 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 85 [2024-10-31 22:13:36,717 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:13:37,130 INFO L124 PetriNetUnfolderBase]: 514/843 cut-off events. [2024-10-31 22:13:37,130 INFO L125 PetriNetUnfolderBase]: For 1578/1604 co-relation queries the response was YES. [2024-10-31 22:13:37,134 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2814 conditions, 843 events. 514/843 cut-off events. For 1578/1604 co-relation queries the response was YES. Maximal size of possible extension queue 47. Compared 3379 event pairs, 52 based on Foata normal form. 41/869 useless extension candidates. Maximal degree in co-relation 2792. Up to 284 conditions per place. [2024-10-31 22:13:37,138 INFO L140 encePairwiseOnDemand]: 79/85 looper letters, 58 selfloop transitions, 11 changer transitions 1/78 dead transitions. [2024-10-31 22:13:37,138 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 72 places, 78 transitions, 533 flow [2024-10-31 22:13:37,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-31 22:13:37,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-31 22:13:37,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 134 transitions. [2024-10-31 22:13:37,140 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.2627450980392157 [2024-10-31 22:13:37,140 INFO L175 Difference]: Start difference. First operand has 67 places, 48 transitions, 254 flow. Second operand 6 states and 134 transitions. [2024-10-31 22:13:37,141 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 72 places, 78 transitions, 533 flow [2024-10-31 22:13:37,145 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 78 transitions, 488 flow, removed 10 selfloop flow, removed 6 redundant places. [2024-10-31 22:13:37,146 INFO L231 Difference]: Finished difference. Result has 68 places, 47 transitions, 247 flow [2024-10-31 22:13:37,147 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=85, PETRI_DIFFERENCE_MINUEND_FLOW=211, PETRI_DIFFERENCE_MINUEND_PLACES=61, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=47, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=247, PETRI_PLACES=68, PETRI_TRANSITIONS=47} [2024-10-31 22:13:37,147 INFO L277 CegarLoopForPetriNet]: 90 programPoint places, -22 predicate places. [2024-10-31 22:13:37,147 INFO L471 AbstractCegarLoop]: Abstraction has has 68 places, 47 transitions, 247 flow [2024-10-31 22:13:37,148 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 16.166666666666668) internal successors, (97), 6 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:13:37,148 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:13:37,148 INFO L204 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] [2024-10-31 22:13:37,148 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-10-31 22:13:37,148 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, P0Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, P0Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 82 more)] === [2024-10-31 22:13:37,149 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:13:37,149 INFO L85 PathProgramCache]: Analyzing trace with hash 888490284, now seen corresponding path program 1 times [2024-10-31 22:13:37,149 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:13:37,149 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1180683761] [2024-10-31 22:13:37,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:13:37,150 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:13:37,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:13:37,348 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.