./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-recursive-malloc/chunk3.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 30e01a73 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_bfa187ba-7f03-4a65-80f5-1adf52ed64bf/bin/uautomizer-verify-zZY32mL2XJ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfa187ba-7f03-4a65-80f5-1adf52ed64bf/bin/uautomizer-verify-zZY32mL2XJ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfa187ba-7f03-4a65-80f5-1adf52ed64bf/bin/uautomizer-verify-zZY32mL2XJ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfa187ba-7f03-4a65-80f5-1adf52ed64bf/bin/uautomizer-verify-zZY32mL2XJ/config/AutomizerReach.xml -i ../../sv-benchmarks/c/termination-recursive-malloc/chunk3.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfa187ba-7f03-4a65-80f5-1adf52ed64bf/bin/uautomizer-verify-zZY32mL2XJ/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfa187ba-7f03-4a65-80f5-1adf52ed64bf/bin/uautomizer-verify-zZY32mL2XJ --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 19fa5e5331bf5f5328e727d3adbf080a08b9ec2fa548b9c0eb2f35cc19738b3d --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 22:32:14,195 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 22:32:14,302 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfa187ba-7f03-4a65-80f5-1adf52ed64bf/bin/uautomizer-verify-zZY32mL2XJ/config/svcomp-Overflow-64bit-Automizer_Default.epf [2023-11-23 22:32:14,312 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 22:32:14,313 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 22:32:14,357 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 22:32:14,360 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 22:32:14,361 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 22:32:14,362 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-23 22:32:14,369 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-23 22:32:14,369 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 22:32:14,370 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 22:32:14,371 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-23 22:32:14,373 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-23 22:32:14,373 INFO L153 SettingsManager]: * Use SBE=true [2023-11-23 22:32:14,374 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 22:32:14,374 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 22:32:14,374 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 22:32:14,375 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 22:32:14,375 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 22:32:14,376 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 22:32:14,376 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 22:32:14,377 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-23 22:32:14,377 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-23 22:32:14,377 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 22:32:14,378 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 22:32:14,379 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 22:32:14,379 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-23 22:32:14,380 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 22:32:14,380 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 22:32:14,381 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 22:32:14,382 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 22:32:14,382 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 22:32:14,382 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 22:32:14,383 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-23 22:32:14,383 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 22:32:14,383 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 22:32:14,383 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-23 22:32:14,383 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 22:32:14,384 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-23 22:32:14,384 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 22:32:14,384 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_bfa187ba-7f03-4a65-80f5-1adf52ed64bf/bin/uautomizer-verify-zZY32mL2XJ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfa187ba-7f03-4a65-80f5-1adf52ed64bf/bin/uautomizer-verify-zZY32mL2XJ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 19fa5e5331bf5f5328e727d3adbf080a08b9ec2fa548b9c0eb2f35cc19738b3d [2023-11-23 22:32:14,693 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 22:32:14,733 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 22:32:14,735 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 22:32:14,737 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 22:32:14,738 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 22:32:14,739 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfa187ba-7f03-4a65-80f5-1adf52ed64bf/bin/uautomizer-verify-zZY32mL2XJ/../../sv-benchmarks/c/termination-recursive-malloc/chunk3.i [2023-11-23 22:32:17,960 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 22:32:18,203 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 22:32:18,203 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfa187ba-7f03-4a65-80f5-1adf52ed64bf/sv-benchmarks/c/termination-recursive-malloc/chunk3.i [2023-11-23 22:32:18,210 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfa187ba-7f03-4a65-80f5-1adf52ed64bf/bin/uautomizer-verify-zZY32mL2XJ/data/cff36b977/7dd292d38330435b8615bd00781a2555/FLAG05ec66984 [2023-11-23 22:32:18,224 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfa187ba-7f03-4a65-80f5-1adf52ed64bf/bin/uautomizer-verify-zZY32mL2XJ/data/cff36b977/7dd292d38330435b8615bd00781a2555 [2023-11-23 22:32:18,227 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 22:32:18,228 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 22:32:18,230 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 22:32:18,230 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 22:32:18,239 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 22:32:18,240 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 10:32:18" (1/1) ... [2023-11-23 22:32:18,241 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@79741d16 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:32:18, skipping insertion in model container [2023-11-23 22:32:18,241 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 10:32:18" (1/1) ... [2023-11-23 22:32:18,267 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 22:32:18,439 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 22:32:18,450 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 22:32:18,472 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 22:32:18,488 INFO L206 MainTranslator]: Completed translation [2023-11-23 22:32:18,488 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:32:18 WrapperNode [2023-11-23 22:32:18,489 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 22:32:18,490 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 22:32:18,490 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 22:32:18,490 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 22:32:18,499 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:32:18" (1/1) ... [2023-11-23 22:32:18,507 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:32:18" (1/1) ... [2023-11-23 22:32:18,527 INFO L138 Inliner]: procedures = 13, calls = 34, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 41 [2023-11-23 22:32:18,528 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 22:32:18,529 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 22:32:18,529 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 22:32:18,531 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 22:32:18,544 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:32:18" (1/1) ... [2023-11-23 22:32:18,544 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:32:18" (1/1) ... [2023-11-23 22:32:18,547 INFO L184 PluginConnector]: Executing the observer HeapSplitter from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:32:18" (1/1) ... [2023-11-23 22:32:18,565 INFO L189 HeapSplitter]: Split 22 memory accesses to 2 slices as follows [8, 14] [2023-11-23 22:32:18,565 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:32:18" (1/1) ... [2023-11-23 22:32:18,566 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:32:18" (1/1) ... [2023-11-23 22:32:18,574 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:32:18" (1/1) ... [2023-11-23 22:32:18,576 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:32:18" (1/1) ... [2023-11-23 22:32:18,577 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:32:18" (1/1) ... [2023-11-23 22:32:18,579 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:32:18" (1/1) ... [2023-11-23 22:32:18,582 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 22:32:18,583 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 22:32:18,583 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 22:32:18,583 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 22:32:18,584 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:32:18" (1/1) ... [2023-11-23 22:32:18,595 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 22:32:18,610 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfa187ba-7f03-4a65-80f5-1adf52ed64bf/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:32:18,627 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfa187ba-7f03-4a65-80f5-1adf52ed64bf/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 22:32:18,665 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfa187ba-7f03-4a65-80f5-1adf52ed64bf/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 22:32:18,678 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2023-11-23 22:32:18,679 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2023-11-23 22:32:18,679 INFO L130 BoogieDeclarations]: Found specification of procedure chunk [2023-11-23 22:32:18,679 INFO L138 BoogieDeclarations]: Found implementation of procedure chunk [2023-11-23 22:32:18,679 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2023-11-23 22:32:18,680 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2023-11-23 22:32:18,680 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2023-11-23 22:32:18,680 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2023-11-23 22:32:18,680 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-23 22:32:18,680 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 22:32:18,680 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 22:32:18,680 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2023-11-23 22:32:18,683 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2023-11-23 22:32:18,683 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-23 22:32:18,807 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 22:32:18,810 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 22:32:19,059 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 22:32:19,116 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 22:32:19,117 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-23 22:32:19,117 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 10:32:19 BoogieIcfgContainer [2023-11-23 22:32:19,117 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 22:32:19,120 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 22:32:19,121 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 22:32:19,128 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 22:32:19,129 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 10:32:18" (1/3) ... [2023-11-23 22:32:19,130 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60b68334 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 10:32:19, skipping insertion in model container [2023-11-23 22:32:19,130 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:32:18" (2/3) ... [2023-11-23 22:32:19,145 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60b68334 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 10:32:19, skipping insertion in model container [2023-11-23 22:32:19,146 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 10:32:19" (3/3) ... [2023-11-23 22:32:19,162 INFO L112 eAbstractionObserver]: Analyzing ICFG chunk3.i [2023-11-23 22:32:19,187 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 22:32:19,187 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-11-23 22:32:19,264 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 22:32:19,273 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@512aac66, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 22:32:19,273 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-11-23 22:32:19,278 INFO L276 IsEmpty]: Start isEmpty. Operand has 16 states, 10 states have (on average 1.4) internal successors, (14), 12 states have internal predecessors, (14), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-23 22:32:19,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-23 22:32:19,287 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 22:32:19,287 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2023-11-23 22:32:19,289 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting chunkErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [chunkErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, chunkErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2023-11-23 22:32:19,297 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:32:19,297 INFO L85 PathProgramCache]: Analyzing trace with hash 1736100445, now seen corresponding path program 1 times [2023-11-23 22:32:19,308 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:32:19,309 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1038204869] [2023-11-23 22:32:19,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:32:19,310 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:32:19,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:32:20,455 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 22:32:20,456 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:32:20,456 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1038204869] [2023-11-23 22:32:20,457 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1038204869] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:32:20,457 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:32:20,457 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-23 22:32:20,459 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1279837830] [2023-11-23 22:32:20,459 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:32:20,463 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-23 22:32:20,463 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:32:20,491 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-23 22:32:20,491 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-23 22:32:20,494 INFO L87 Difference]: Start difference. First operand has 16 states, 10 states have (on average 1.4) internal successors, (14), 12 states have internal predecessors, (14), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 7 states, 5 states have (on average 1.0) internal successors, (5), 5 states have internal predecessors, (5), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:32:20,743 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 22:32:20,744 INFO L93 Difference]: Finished difference Result 26 states and 29 transitions. [2023-11-23 22:32:20,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-23 22:32:20,746 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 5 states have (on average 1.0) internal successors, (5), 5 states have internal predecessors, (5), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2023-11-23 22:32:20,747 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 22:32:20,753 INFO L225 Difference]: With dead ends: 26 [2023-11-23 22:32:20,753 INFO L226 Difference]: Without dead ends: 15 [2023-11-23 22:32:20,756 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2023-11-23 22:32:20,761 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 19 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 39 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-23 22:32:20,762 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 39 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-23 22:32:20,780 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2023-11-23 22:32:20,793 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 13. [2023-11-23 22:32:20,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 9 states have (on average 1.2222222222222223) internal successors, (11), 10 states have internal predecessors, (11), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:32:20,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 13 transitions. [2023-11-23 22:32:20,814 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 13 transitions. Word has length 6 [2023-11-23 22:32:20,814 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 22:32:20,815 INFO L495 AbstractCegarLoop]: Abstraction has 13 states and 13 transitions. [2023-11-23 22:32:20,815 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 5 states have (on average 1.0) internal successors, (5), 5 states have internal predecessors, (5), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:32:20,815 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 13 transitions. [2023-11-23 22:32:20,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-23 22:32:20,816 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 22:32:20,816 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:32:20,817 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-23 22:32:20,817 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting chunkErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [chunkErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, chunkErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2023-11-23 22:32:20,818 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:32:20,818 INFO L85 PathProgramCache]: Analyzing trace with hash -2015461015, now seen corresponding path program 1 times [2023-11-23 22:32:20,818 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:32:20,818 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1205866293] [2023-11-23 22:32:20,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:32:20,819 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:32:20,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:32:21,415 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 22:32:21,415 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:32:21,416 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1205866293] [2023-11-23 22:32:21,416 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1205866293] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:32:21,416 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:32:21,416 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-23 22:32:21,417 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [445612566] [2023-11-23 22:32:21,417 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:32:21,418 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-23 22:32:21,419 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:32:21,419 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-23 22:32:21,420 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-23 22:32:21,420 INFO L87 Difference]: Start difference. First operand 13 states and 13 transitions. Second operand has 7 states, 5 states have (on average 1.2) internal successors, (6), 5 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:32:21,634 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 22:32:21,634 INFO L93 Difference]: Finished difference Result 15 states and 15 transitions. [2023-11-23 22:32:21,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-23 22:32:21,635 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 5 states have (on average 1.2) internal successors, (6), 5 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2023-11-23 22:32:21,635 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 22:32:21,636 INFO L225 Difference]: With dead ends: 15 [2023-11-23 22:32:21,636 INFO L226 Difference]: Without dead ends: 14 [2023-11-23 22:32:21,637 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2023-11-23 22:32:21,638 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 6 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 20 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-23 22:32:21,639 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 20 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-23 22:32:21,640 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2023-11-23 22:32:21,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2023-11-23 22:32:21,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 10 states have (on average 1.2) internal successors, (12), 11 states have internal predecessors, (12), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:32:21,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 14 transitions. [2023-11-23 22:32:21,644 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 14 transitions. Word has length 7 [2023-11-23 22:32:21,644 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 22:32:21,644 INFO L495 AbstractCegarLoop]: Abstraction has 14 states and 14 transitions. [2023-11-23 22:32:21,644 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 5 states have (on average 1.2) internal successors, (6), 5 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:32:21,645 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 14 transitions. [2023-11-23 22:32:21,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-11-23 22:32:21,645 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 22:32:21,645 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:32:21,645 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-23 22:32:21,646 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting chunkErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [chunkErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, chunkErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2023-11-23 22:32:21,646 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:32:21,646 INFO L85 PathProgramCache]: Analyzing trace with hash -2003363278, now seen corresponding path program 1 times [2023-11-23 22:32:21,647 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:32:21,647 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [646327020] [2023-11-23 22:32:21,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:32:21,647 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:32:21,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:32:22,999 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 22:32:22,999 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:32:23,000 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [646327020] [2023-11-23 22:32:23,000 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [646327020] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 22:32:23,001 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [273023425] [2023-11-23 22:32:23,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:32:23,001 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 22:32:23,001 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfa187ba-7f03-4a65-80f5-1adf52ed64bf/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:32:23,003 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfa187ba-7f03-4a65-80f5-1adf52ed64bf/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 22:32:23,005 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfa187ba-7f03-4a65-80f5-1adf52ed64bf/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-23 22:32:23,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:32:23,200 INFO L262 TraceCheckSpWp]: Trace formula consists of 283 conjuncts, 52 conjunts are in the unsatisfiable core [2023-11-23 22:32:23,210 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:32:23,487 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 237 treesize of output 147 [2023-11-23 22:32:23,498 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 225 treesize of output 177 [2023-11-23 22:32:23,620 INFO L349 Elim1Store]: treesize reduction 306, result has 18.0 percent of original size [2023-11-23 22:32:23,623 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 7 case distinctions, treesize of input 251 treesize of output 176 [2023-11-23 22:32:24,609 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 127 treesize of output 69 [2023-11-23 22:32:24,669 INFO L349 Elim1Store]: treesize reduction 85, result has 27.4 percent of original size [2023-11-23 22:32:24,669 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 123 treesize of output 128 [2023-11-23 22:32:24,685 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 124 treesize of output 100 [2023-11-23 22:32:24,745 INFO L349 Elim1Store]: treesize reduction 20, result has 56.5 percent of original size [2023-11-23 22:32:24,746 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 64 treesize of output 59 [2023-11-23 22:32:24,764 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2023-11-23 22:32:24,785 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 22:32:24,787 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 20 [2023-11-23 22:32:24,924 WARN L876 $PredicateComparison]: unable to prove that (let ((.cse18 (select |c_#memory_$Pointer$#1.offset| c_chunk_~data.base))) (let ((.cse3 (select (select |c_#memory_$Pointer$#1.base| c_chunk_~data.base) c_chunk_~data.offset)) (.cse5 (select .cse18 c_chunk_~data.offset))) (let ((.cse0 (= (select .cse18 (+ 16 c_chunk_~data.offset)) 0)) (.cse1 (= (select .cse18 (+ c_chunk_~data.offset 24)) 0)) (.cse2 (select (select |c_#memory_int#0| .cse3) .cse5))) (or (and .cse0 .cse1 (<= 0 (+ .cse2 2147483648)) (or (exists ((chunk_~p2~0.base Int)) (and (not (= chunk_~p2~0.base .cse3)) (exists ((v_DerPreprocessor_2 (Array Int Int)) (chunk_~p2~0.offset Int)) (and (= .cse2 (select v_DerPreprocessor_2 chunk_~p2~0.offset)) (exists ((v_DerPreprocessor_1 (Array Int Int))) (let ((.cse4 (store (store |c_#memory_int#0| .cse3 v_DerPreprocessor_1) chunk_~p2~0.base v_DerPreprocessor_2))) (and (= .cse2 (select (select .cse4 .cse3) .cse5)) (exists ((chunk_~p3~0.offset Int) (chunk_~p3~0.base Int)) (let ((.cse6 (select (select |c_#memory_int#0| chunk_~p3~0.base) chunk_~p3~0.offset))) (and (not (= chunk_~p3~0.offset .cse5)) (= (select (select .cse4 chunk_~p3~0.base) chunk_~p3~0.offset) .cse6) (<= .cse2 .cse6) (= .cse6 (select (select |c_#memory_int#0| chunk_~p2~0.base) chunk_~p2~0.offset)))))))))))) (exists ((chunk_~p2~0.offset Int)) (and (exists ((v_DerPreprocessor_2 (Array Int Int)) (chunk_~p2~0.base Int)) (and (= .cse2 (select v_DerPreprocessor_2 chunk_~p2~0.offset)) (exists ((v_DerPreprocessor_1 (Array Int Int))) (let ((.cse7 (store (store |c_#memory_int#0| .cse3 v_DerPreprocessor_1) chunk_~p2~0.base v_DerPreprocessor_2))) (let ((.cse9 (select .cse7 .cse3))) (and (exists ((chunk_~p3~0.offset Int) (chunk_~p3~0.base Int)) (let ((.cse8 (select (select |c_#memory_int#0| chunk_~p3~0.base) chunk_~p3~0.offset))) (and (= (select (select .cse7 chunk_~p3~0.base) chunk_~p3~0.offset) .cse8) (<= .cse2 .cse8) (not (= .cse3 chunk_~p3~0.base)) (= .cse8 (select (select |c_#memory_int#0| chunk_~p2~0.base) chunk_~p2~0.offset))))) (= .cse9 v_DerPreprocessor_1) (= .cse2 (select .cse9 .cse5)))))))) (not (= chunk_~p2~0.offset .cse5)))) (exists ((chunk_~p2~0.base Int)) (and (not (= chunk_~p2~0.base .cse3)) (exists ((chunk_~p2~0.offset Int)) (and (<= .cse2 (select (select |c_#memory_int#0| chunk_~p2~0.base) chunk_~p2~0.offset)) (exists ((v_DerPreprocessor_1 (Array Int Int)) (v_DerPreprocessor_2 (Array Int Int))) (and (= .cse2 (select v_DerPreprocessor_2 chunk_~p2~0.offset)) (= .cse2 (select (select (store (store |c_#memory_int#0| .cse3 v_DerPreprocessor_1) chunk_~p2~0.base v_DerPreprocessor_2) .cse3) .cse5)))))))) (exists ((chunk_~p2~0.offset Int)) (and (exists ((chunk_~p2~0.base Int)) (and (exists ((v_DerPreprocessor_1 (Array Int Int)) (v_DerPreprocessor_2 (Array Int Int))) (let ((.cse10 (select (store (store |c_#memory_int#0| .cse3 v_DerPreprocessor_1) chunk_~p2~0.base v_DerPreprocessor_2) .cse3))) (and (= .cse2 (select v_DerPreprocessor_2 chunk_~p2~0.offset)) (= .cse10 v_DerPreprocessor_1) (= .cse2 (select .cse10 .cse5))))) (<= .cse2 (select (select |c_#memory_int#0| chunk_~p2~0.base) chunk_~p2~0.offset)))) (not (= chunk_~p2~0.offset .cse5)))) (exists ((chunk_~p2~0.base Int)) (and (not (= chunk_~p2~0.base .cse3)) (exists ((v_DerPreprocessor_2 (Array Int Int)) (chunk_~p2~0.offset Int)) (and (= .cse2 (select v_DerPreprocessor_2 chunk_~p2~0.offset)) (exists ((v_DerPreprocessor_1 (Array Int Int))) (let ((.cse11 (store (store |c_#memory_int#0| .cse3 v_DerPreprocessor_1) chunk_~p2~0.base v_DerPreprocessor_2))) (and (exists ((chunk_~p3~0.offset Int) (chunk_~p3~0.base Int)) (let ((.cse12 (select (select |c_#memory_int#0| chunk_~p3~0.base) chunk_~p3~0.offset))) (and (= (select (select .cse11 chunk_~p3~0.base) chunk_~p3~0.offset) .cse12) (<= .cse2 .cse12) (not (= .cse3 chunk_~p3~0.base)) (= .cse12 (select (select |c_#memory_int#0| chunk_~p2~0.base) chunk_~p2~0.offset))))) (= .cse2 (select (select .cse11 .cse3) .cse5))))))))) (exists ((chunk_~p2~0.offset Int)) (and (exists ((v_DerPreprocessor_2 (Array Int Int)) (chunk_~p2~0.base Int)) (and (= .cse2 (select v_DerPreprocessor_2 chunk_~p2~0.offset)) (exists ((v_DerPreprocessor_1 (Array Int Int))) (let ((.cse14 (store (store |c_#memory_int#0| .cse3 v_DerPreprocessor_1) chunk_~p2~0.base v_DerPreprocessor_2))) (let ((.cse13 (select .cse14 .cse3))) (and (= .cse13 v_DerPreprocessor_1) (= .cse2 (select .cse13 .cse5)) (exists ((chunk_~p3~0.offset Int) (chunk_~p3~0.base Int)) (let ((.cse15 (select (select |c_#memory_int#0| chunk_~p3~0.base) chunk_~p3~0.offset))) (and (not (= chunk_~p3~0.offset .cse5)) (= (select (select .cse14 chunk_~p3~0.base) chunk_~p3~0.offset) .cse15) (<= .cse2 .cse15) (= .cse15 (select (select |c_#memory_int#0| chunk_~p2~0.base) chunk_~p2~0.offset))))))))))) (not (= chunk_~p2~0.offset .cse5)))))) (and .cse0 .cse1 (or (exists ((chunk_~p3~0.offset Int) (chunk_~p3~0.base Int)) (let ((.cse16 (select (select |c_#memory_int#0| chunk_~p3~0.base) chunk_~p3~0.offset))) (and (not (= chunk_~p3~0.offset .cse5)) (= .cse2 .cse16) (<= 0 (+ .cse16 2147483648))))) (exists ((chunk_~p3~0.offset Int) (chunk_~p3~0.base Int)) (let ((.cse17 (select (select |c_#memory_int#0| chunk_~p3~0.base) chunk_~p3~0.offset))) (and (= .cse2 .cse17) (not (= .cse3 chunk_~p3~0.base)) (<= 0 (+ .cse17 2147483648))))))))))) is different from true [2023-11-23 22:32:26,759 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 849 treesize of output 649 [2023-11-23 22:32:26,800 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-23 22:32:26,800 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 653 treesize of output 493 [2023-11-23 22:32:28,846 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-23 22:32:28,847 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 13 select indices, 13 select index equivalence classes, 0 disjoint index pairs (out of 78 index pairs), introduced 13 new quantified variables, introduced 78 case distinctions, treesize of input 774 treesize of output 1466 [2023-11-23 22:32:29,129 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-23 22:32:29,130 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 339 treesize of output 344 [2023-11-23 22:32:29,221 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 335 treesize of output 333 [2023-11-23 22:32:29,338 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-23 22:32:29,339 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 333 treesize of output 338 [2023-11-23 22:32:29,477 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-23 22:32:29,478 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 329 treesize of output 332 [2023-11-23 22:32:29,590 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 323 treesize of output 321 [2023-11-23 22:32:29,699 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 321 treesize of output 319 [2023-11-23 22:32:30,081 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2023-11-23 22:32:30,145 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-23 22:32:30,146 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 26 treesize of output 36 [2023-11-23 22:32:30,489 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2023-11-23 22:32:30,544 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2023-11-23 22:32:30,644 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 42 [2023-11-23 22:32:30,954 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-23 22:32:30,955 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 41 treesize of output 41