./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test6-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 4f9af400 extending candidate: java ['java'] extending candidate: /usr/bin/java ['java', '/usr/bin/java'] extending candidate: /opt/oracle-jdk-bin-*/bin/java ['java', '/usr/bin/java'] extending candidate: /opt/openjdk-*/bin/java ['java', '/usr/bin/java'] extending candidate: /usr/lib/jvm/java-*-openjdk-amd64/bin/java ['java', '/usr/bin/java', '/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java', '/usr/lib/jvm/java-17-openjdk-amd64/bin/java', '/usr/lib/jvm/java-11-openjdk-amd64/bin/java', '/usr/lib/jvm/java-1.17.0-openjdk-amd64/bin/java'] ['/root/.sdkman/candidates/java/21.0.5-tem/bin/java', '-Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config', '-Xmx15G', '-Xms4m', '-jar', '/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar', '-data', '@noDefault', '-ultimatedata', '/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data', '-tc', '/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml', '-i', '../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test6-2.i', '-s', '/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf', '--cacsl2boogietranslator.entry.function', 'main', '--witnessprinter.witness.directory', '/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux', '--witnessprinter.witness.filename', 'witness', '--witnessprinter.write.witness.besides.input.file', 'false', '--witnessprinter.graph.data.specification', 'CHECK( init(main()), LTL(G ! overflow) )\n\n', '--witnessprinter.graph.data.producer', 'Automizer', '--witnessprinter.graph.data.architecture', '32bit', '--witnessprinter.graph.data.programhash', 'd952a2ac4207d7207b65e88d163e23d18bb81c0593196a835eab903a81ce4e5c'] Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test6-2.i -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash d952a2ac4207d7207b65e88d163e23d18bb81c0593196a835eab903a81ce4e5c --- Real Ultimate output --- This is Ultimate 0.3.0-?-4f9af40 [2024-11-07 23:04:20,255 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-07 23:04:20,355 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-07 23:04:20,362 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-07 23:04:20,363 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-07 23:04:20,393 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-07 23:04:20,395 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-07 23:04:20,395 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-07 23:04:20,395 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-07 23:04:20,396 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-07 23:04:20,396 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-07 23:04:20,396 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-07 23:04:20,396 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-07 23:04:20,396 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-07 23:04:20,396 INFO L153 SettingsManager]: * Use SBE=true [2024-11-07 23:04:20,397 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-07 23:04:20,397 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-07 23:04:20,397 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-07 23:04:20,397 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-07 23:04:20,397 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-07 23:04:20,397 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-07 23:04:20,397 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-07 23:04:20,397 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-07 23:04:20,398 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-07 23:04:20,398 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-07 23:04:20,398 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-07 23:04:20,398 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-07 23:04:20,398 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-07 23:04:20,398 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-07 23:04:20,398 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-07 23:04:20,398 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-07 23:04:20,399 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-07 23:04:20,399 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-07 23:04:20,399 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-07 23:04:20,399 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-07 23:04:20,399 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-07 23:04:20,399 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-07 23:04:20,399 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-07 23:04:20,399 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-07 23:04:20,399 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-07 23:04:20,400 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-07 23:04:20,400 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-07 23:04:20,400 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-07 23:04:20,400 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-07 23:04:20,400 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d952a2ac4207d7207b65e88d163e23d18bb81c0593196a835eab903a81ce4e5c [2024-11-07 23:04:20,645 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-07 23:04:20,653 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-07 23:04:20,655 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-07 23:04:20,656 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-07 23:04:20,656 INFO L274 PluginConnector]: CDTParser initialized [2024-11-07 23:04:20,657 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test6-2.i [2024-11-07 23:04:21,932 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-07 23:04:22,217 INFO L384 CDTParser]: Found 1 translation units. [2024-11-07 23:04:22,218 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test6-2.i [2024-11-07 23:04:22,239 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/85d88337f/9e91e9c92fad43d9a6d1a85c95c3e246/FLAGd45632349 [2024-11-07 23:04:22,256 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/85d88337f/9e91e9c92fad43d9a6d1a85c95c3e246 [2024-11-07 23:04:22,258 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-07 23:04:22,259 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-07 23:04:22,262 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-07 23:04:22,262 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-07 23:04:22,265 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-07 23:04:22,266 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 11:04:22" (1/1) ... [2024-11-07 23:04:22,267 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@25f2fd30 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:04:22, skipping insertion in model container [2024-11-07 23:04:22,267 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 11:04:22" (1/1) ... [2024-11-07 23:04:22,306 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-07 23:04:22,769 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 23:04:22,782 INFO L200 MainTranslator]: Completed pre-run [2024-11-07 23:04:22,896 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 23:04:22,954 INFO L204 MainTranslator]: Completed translation [2024-11-07 23:04:22,955 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:04:22 WrapperNode [2024-11-07 23:04:22,956 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-07 23:04:22,957 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-07 23:04:22,957 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-07 23:04:22,957 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-07 23:04:22,962 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:04:22" (1/1) ... [2024-11-07 23:04:23,010 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:04:22" (1/1) ... [2024-11-07 23:04:23,078 INFO L138 Inliner]: procedures = 282, calls = 353, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 1657 [2024-11-07 23:04:23,079 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-07 23:04:23,079 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-07 23:04:23,079 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-07 23:04:23,080 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-07 23:04:23,088 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:04:22" (1/1) ... [2024-11-07 23:04:23,088 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:04:22" (1/1) ... [2024-11-07 23:04:23,103 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:04:22" (1/1) ... [2024-11-07 23:04:23,217 INFO L175 MemorySlicer]: Split 318 memory accesses to 4 slices as follows [2, 12, 270, 34]. 85 percent of accesses are in the largest equivalence class. The 12 initializations are split as follows [2, 10, 0, 0]. The 62 writes are split as follows [0, 1, 57, 4]. [2024-11-07 23:04:23,217 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:04:22" (1/1) ... [2024-11-07 23:04:23,218 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:04:22" (1/1) ... [2024-11-07 23:04:23,256 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:04:22" (1/1) ... [2024-11-07 23:04:23,266 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:04:22" (1/1) ... [2024-11-07 23:04:23,274 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:04:22" (1/1) ... [2024-11-07 23:04:23,281 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:04:22" (1/1) ... [2024-11-07 23:04:23,298 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-07 23:04:23,299 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-07 23:04:23,299 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-07 23:04:23,299 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-07 23:04:23,300 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:04:22" (1/1) ... [2024-11-07 23:04:23,309 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-07 23:04:23,323 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 23:04:23,336 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-07 23:04:23,342 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-07 23:04:23,359 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2024-11-07 23:04:23,359 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2024-11-07 23:04:23,360 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-07 23:04:23,361 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-07 23:04:23,361 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-07 23:04:23,361 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-07 23:04:23,361 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-11-07 23:04:23,361 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-07 23:04:23,361 INFO L130 BoogieDeclarations]: Found specification of procedure alt_bzero [2024-11-07 23:04:23,361 INFO L138 BoogieDeclarations]: Found implementation of procedure alt_bzero [2024-11-07 23:04:23,361 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-07 23:04:23,361 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-07 23:04:23,361 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-07 23:04:23,362 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-07 23:04:23,362 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-07 23:04:23,362 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-07 23:04:23,362 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-07 23:04:23,362 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-07 23:04:23,362 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-07 23:04:23,362 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-07 23:04:23,362 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-07 23:04:23,362 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-07 23:04:23,363 INFO L130 BoogieDeclarations]: Found specification of procedure alt_malloc [2024-11-07 23:04:23,363 INFO L138 BoogieDeclarations]: Found implementation of procedure alt_malloc [2024-11-07 23:04:23,363 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-07 23:04:23,363 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-07 23:04:23,363 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-07 23:04:23,364 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-11-07 23:04:23,364 INFO L130 BoogieDeclarations]: Found specification of procedure alt_free [2024-11-07 23:04:23,364 INFO L138 BoogieDeclarations]: Found implementation of procedure alt_free [2024-11-07 23:04:23,364 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-07 23:04:23,364 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-07 23:04:23,364 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-07 23:04:23,364 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-07 23:04:23,364 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-07 23:04:23,364 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-07 23:04:23,615 INFO L238 CfgBuilder]: Building ICFG [2024-11-07 23:04:23,617 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-07 23:04:25,097 INFO L? ?]: Removed 376 outVars from TransFormulas that were not future-live. [2024-11-07 23:04:25,097 INFO L287 CfgBuilder]: Performing block encoding [2024-11-07 23:04:25,120 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-07 23:04:25,124 INFO L316 CfgBuilder]: Removed 72 assume(true) statements. [2024-11-07 23:04:25,124 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 11:04:25 BoogieIcfgContainer [2024-11-07 23:04:25,125 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-07 23:04:25,126 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-07 23:04:25,127 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-07 23:04:25,132 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-07 23:04:25,133 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 11:04:22" (1/3) ... [2024-11-07 23:04:25,133 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@9662f00 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 11:04:25, skipping insertion in model container [2024-11-07 23:04:25,133 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:04:22" (2/3) ... [2024-11-07 23:04:25,133 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@9662f00 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 11:04:25, skipping insertion in model container [2024-11-07 23:04:25,133 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 11:04:25" (3/3) ... [2024-11-07 23:04:25,134 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_BER_test6-2.i [2024-11-07 23:04:25,147 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-07 23:04:25,147 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 14 error locations. [2024-11-07 23:04:25,216 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-07 23:04:25,229 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@afaf566, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-07 23:04:25,229 INFO L334 AbstractCegarLoop]: Starting to check reachability of 14 error locations. [2024-11-07 23:04:25,236 INFO L276 IsEmpty]: Start isEmpty. Operand has 501 states, 462 states have (on average 1.606060606060606) internal successors, (742), 479 states have internal predecessors, (742), 20 states have call successors, (20), 5 states have call predecessors, (20), 5 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-07 23:04:25,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-07 23:04:25,242 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 23:04:25,243 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 23:04:25,243 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-07 23:04:25,247 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 23:04:25,249 INFO L85 PathProgramCache]: Analyzing trace with hash 1635847084, now seen corresponding path program 1 times [2024-11-07 23:04:25,255 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 23:04:25,256 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1798288060] [2024-11-07 23:04:25,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:04:25,256 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 23:04:25,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:04:25,458 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 23:04:25,458 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 23:04:25,458 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1798288060] [2024-11-07 23:04:25,459 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1798288060] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 23:04:25,459 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 23:04:25,459 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-07 23:04:25,462 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1136463583] [2024-11-07 23:04:25,462 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 23:04:25,465 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-07 23:04:25,467 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 23:04:25,480 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-07 23:04:25,481 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-07 23:04:25,483 INFO L87 Difference]: Start difference. First operand has 501 states, 462 states have (on average 1.606060606060606) internal successors, (742), 479 states have internal predecessors, (742), 20 states have call successors, (20), 5 states have call predecessors, (20), 5 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 23:04:25,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 23:04:25,548 INFO L93 Difference]: Finished difference Result 995 states and 1569 transitions. [2024-11-07 23:04:25,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-07 23:04:25,550 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 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) Word has length 8 [2024-11-07 23:04:25,550 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 23:04:25,560 INFO L225 Difference]: With dead ends: 995 [2024-11-07 23:04:25,560 INFO L226 Difference]: Without dead ends: 487 [2024-11-07 23:04:25,567 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-07 23:04:25,570 INFO L432 NwaCegarLoop]: 695 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 695 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 23:04:25,571 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 695 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 23:04:25,584 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 487 states. [2024-11-07 23:04:25,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 487 to 487. [2024-11-07 23:04:25,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 487 states, 454 states have (on average 1.4383259911894273) internal successors, (653), 468 states have internal predecessors, (653), 15 states have call successors, (15), 4 states have call predecessors, (15), 4 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-07 23:04:25,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 487 states to 487 states and 683 transitions. [2024-11-07 23:04:25,641 INFO L78 Accepts]: Start accepts. Automaton has 487 states and 683 transitions. Word has length 8 [2024-11-07 23:04:25,641 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 23:04:25,641 INFO L471 AbstractCegarLoop]: Abstraction has 487 states and 683 transitions. [2024-11-07 23:04:25,642 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 23:04:25,642 INFO L276 IsEmpty]: Start isEmpty. Operand 487 states and 683 transitions. [2024-11-07 23:04:25,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-07 23:04:25,642 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 23:04:25,644 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 23:04:25,644 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-07 23:04:25,644 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-07 23:04:25,645 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 23:04:25,645 INFO L85 PathProgramCache]: Analyzing trace with hash 1635849006, now seen corresponding path program 1 times [2024-11-07 23:04:25,645 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 23:04:25,645 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1549418111] [2024-11-07 23:04:25,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:04:25,645 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 23:04:25,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-07 23:04:25,702 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1470541427] [2024-11-07 23:04:25,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:04:25,703 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 23:04:25,703 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 23:04:25,705 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-07 23:04:25,707 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-07 23:04:25,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:04:25,911 INFO L255 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-07 23:04:25,915 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 23:04:25,956 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-11-07 23:04:25,989 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 23:04:25,990 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-07 23:04:25,990 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 23:04:25,990 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1549418111] [2024-11-07 23:04:25,991 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-07 23:04:25,993 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1470541427] [2024-11-07 23:04:25,993 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1470541427] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 23:04:25,993 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 23:04:25,993 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-07 23:04:25,995 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [194739893] [2024-11-07 23:04:25,995 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 23:04:25,995 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-07 23:04:25,996 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 23:04:25,996 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-07 23:04:25,996 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-07 23:04:25,996 INFO L87 Difference]: Start difference. First operand 487 states and 683 transitions. Second operand has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 23:04:26,183 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 23:04:26,185 INFO L93 Difference]: Finished difference Result 940 states and 1333 transitions. [2024-11-07 23:04:26,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-07 23:04:26,185 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 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) Word has length 8 [2024-11-07 23:04:26,185 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 23:04:26,190 INFO L225 Difference]: With dead ends: 940 [2024-11-07 23:04:26,191 INFO L226 Difference]: Without dead ends: 938 [2024-11-07 23:04:26,192 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-07 23:04:26,194 INFO L432 NwaCegarLoop]: 659 mSDtfsCounter, 614 mSDsluCounter, 1302 mSDsCounter, 0 mSdLazyCounter, 86 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 628 SdHoareTripleChecker+Valid, 1961 SdHoareTripleChecker+Invalid, 89 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 86 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-07 23:04:26,196 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [628 Valid, 1961 Invalid, 89 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 86 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-07 23:04:26,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 938 states. [2024-11-07 23:04:26,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 938 to 494. [2024-11-07 23:04:26,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 494 states, 461 states have (on average 1.4338394793926248) internal successors, (661), 475 states have internal predecessors, (661), 15 states have call successors, (15), 4 states have call predecessors, (15), 4 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-07 23:04:26,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 494 states to 494 states and 691 transitions. [2024-11-07 23:04:26,235 INFO L78 Accepts]: Start accepts. Automaton has 494 states and 691 transitions. Word has length 8 [2024-11-07 23:04:26,235 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 23:04:26,235 INFO L471 AbstractCegarLoop]: Abstraction has 494 states and 691 transitions. [2024-11-07 23:04:26,235 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 23:04:26,235 INFO L276 IsEmpty]: Start isEmpty. Operand 494 states and 691 transitions. [2024-11-07 23:04:26,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2024-11-07 23:04:26,237 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 23:04:26,237 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 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] [2024-11-07 23:04:26,256 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-07 23:04:26,437 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 23:04:26,437 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-07 23:04:26,438 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 23:04:26,438 INFO L85 PathProgramCache]: Analyzing trace with hash -1086501261, now seen corresponding path program 1 times [2024-11-07 23:04:26,438 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 23:04:26,438 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [509835404] [2024-11-07 23:04:26,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:04:26,438 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 23:04:26,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:04:26,690 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-07 23:04:26,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:04:26,698 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-07 23:04:26,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:04:26,702 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-11-07 23:04:26,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:04:26,705 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-07 23:04:26,705 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 23:04:26,705 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [509835404] [2024-11-07 23:04:26,706 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [509835404] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 23:04:26,706 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 23:04:26,706 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-07 23:04:26,706 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1075528321] [2024-11-07 23:04:26,706 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 23:04:26,706 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-07 23:04:26,706 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 23:04:26,707 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-07 23:04:26,707 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-07 23:04:26,707 INFO L87 Difference]: Start difference. First operand 494 states and 691 transitions. Second operand has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-07 23:04:26,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 23:04:26,892 INFO L93 Difference]: Finished difference Result 1192 states and 1688 transitions. [2024-11-07 23:04:26,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-07 23:04:26,893 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 34 [2024-11-07 23:04:26,893 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 23:04:26,900 INFO L225 Difference]: With dead ends: 1192 [2024-11-07 23:04:26,901 INFO L226 Difference]: Without dead ends: 937 [2024-11-07 23:04:26,901 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-07 23:04:26,903 INFO L432 NwaCegarLoop]: 677 mSDtfsCounter, 616 mSDsluCounter, 1323 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 630 SdHoareTripleChecker+Valid, 2000 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-07 23:04:26,903 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [630 Valid, 2000 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-07 23:04:26,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 937 states. [2024-11-07 23:04:26,923 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 937 to 494. [2024-11-07 23:04:26,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 494 states, 461 states have (on average 1.4316702819956617) internal successors, (660), 475 states have internal predecessors, (660), 15 states have call successors, (15), 4 states have call predecessors, (15), 4 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-07 23:04:26,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 494 states to 494 states and 690 transitions. [2024-11-07 23:04:26,929 INFO L78 Accepts]: Start accepts. Automaton has 494 states and 690 transitions. Word has length 34 [2024-11-07 23:04:26,929 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 23:04:26,929 INFO L471 AbstractCegarLoop]: Abstraction has 494 states and 690 transitions. [2024-11-07 23:04:26,929 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-07 23:04:26,929 INFO L276 IsEmpty]: Start isEmpty. Operand 494 states and 690 transitions. [2024-11-07 23:04:26,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2024-11-07 23:04:26,931 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 23:04:26,931 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 23:04:26,931 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-07 23:04:26,931 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-07 23:04:26,932 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 23:04:26,932 INFO L85 PathProgramCache]: Analyzing trace with hash 185612591, now seen corresponding path program 1 times [2024-11-07 23:04:26,933 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 23:04:26,933 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1008364069] [2024-11-07 23:04:26,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:04:26,933 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 23:04:26,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:04:27,194 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 23:04:27,195 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 23:04:27,195 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1008364069] [2024-11-07 23:04:27,195 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1008364069] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 23:04:27,195 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 23:04:27,195 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-07 23:04:27,195 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [736225541] [2024-11-07 23:04:27,196 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 23:04:27,196 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-07 23:04:27,196 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 23:04:27,196 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-07 23:04:27,196 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-07 23:04:27,197 INFO L87 Difference]: Start difference. First operand 494 states and 690 transitions. Second operand has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 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) [2024-11-07 23:04:27,287 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 23:04:27,287 INFO L93 Difference]: Finished difference Result 982 states and 1374 transitions. [2024-11-07 23:04:27,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-07 23:04:27,288 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 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 64 [2024-11-07 23:04:27,288 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 23:04:27,290 INFO L225 Difference]: With dead ends: 982 [2024-11-07 23:04:27,290 INFO L226 Difference]: Without dead ends: 497 [2024-11-07 23:04:27,291 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-07 23:04:27,292 INFO L432 NwaCegarLoop]: 655 mSDtfsCounter, 105 mSDsluCounter, 1217 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 105 SdHoareTripleChecker+Valid, 1872 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-07 23:04:27,293 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [105 Valid, 1872 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-07 23:04:27,294 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 497 states. [2024-11-07 23:04:27,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 497 to 494. [2024-11-07 23:04:27,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 494 states, 461 states have (on average 1.4164859002169197) internal successors, (653), 475 states have internal predecessors, (653), 15 states have call successors, (15), 4 states have call predecessors, (15), 4 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-07 23:04:27,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 494 states to 494 states and 683 transitions. [2024-11-07 23:04:27,308 INFO L78 Accepts]: Start accepts. Automaton has 494 states and 683 transitions. Word has length 64 [2024-11-07 23:04:27,308 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 23:04:27,308 INFO L471 AbstractCegarLoop]: Abstraction has 494 states and 683 transitions. [2024-11-07 23:04:27,309 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 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) [2024-11-07 23:04:27,309 INFO L276 IsEmpty]: Start isEmpty. Operand 494 states and 683 transitions. [2024-11-07 23:04:27,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2024-11-07 23:04:27,311 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 23:04:27,312 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 23:04:27,312 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-07 23:04:27,312 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-07 23:04:27,312 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 23:04:27,312 INFO L85 PathProgramCache]: Analyzing trace with hash -878587357, now seen corresponding path program 1 times [2024-11-07 23:04:27,313 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 23:04:27,313 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [412977675] [2024-11-07 23:04:27,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:04:27,313 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 23:04:27,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:04:27,588 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 23:04:27,588 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 23:04:27,588 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [412977675] [2024-11-07 23:04:27,588 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [412977675] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 23:04:27,588 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 23:04:27,588 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-07 23:04:27,588 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1703424144] [2024-11-07 23:04:27,589 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 23:04:27,589 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-07 23:04:27,591 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 23:04:27,591 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-07 23:04:27,592 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-07 23:04:27,592 INFO L87 Difference]: Start difference. First operand 494 states and 683 transitions. Second operand has 4 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 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) [2024-11-07 23:04:27,661 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 23:04:27,661 INFO L93 Difference]: Finished difference Result 909 states and 1268 transitions. [2024-11-07 23:04:27,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-07 23:04:27,662 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 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 64 [2024-11-07 23:04:27,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 23:04:27,669 INFO L225 Difference]: With dead ends: 909 [2024-11-07 23:04:27,670 INFO L226 Difference]: Without dead ends: 905 [2024-11-07 23:04:27,671 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-07 23:04:27,672 INFO L432 NwaCegarLoop]: 673 mSDtfsCounter, 516 mSDsluCounter, 1335 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 516 SdHoareTripleChecker+Valid, 2008 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 23:04:27,673 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [516 Valid, 2008 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 23:04:27,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 905 states. [2024-11-07 23:04:27,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 905 to 897. [2024-11-07 23:04:27,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 897 states, 856 states have (on average 1.425233644859813) internal successors, (1220), 872 states have internal predecessors, (1220), 22 states have call successors, (22), 7 states have call predecessors, (22), 5 states have return successors, (22), 18 states have call predecessors, (22), 22 states have call successors, (22) [2024-11-07 23:04:27,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 897 states to 897 states and 1264 transitions. [2024-11-07 23:04:27,711 INFO L78 Accepts]: Start accepts. Automaton has 897 states and 1264 transitions. Word has length 64 [2024-11-07 23:04:27,712 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 23:04:27,712 INFO L471 AbstractCegarLoop]: Abstraction has 897 states and 1264 transitions. [2024-11-07 23:04:27,713 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 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) [2024-11-07 23:04:27,713 INFO L276 IsEmpty]: Start isEmpty. Operand 897 states and 1264 transitions. [2024-11-07 23:04:27,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2024-11-07 23:04:27,716 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 23:04:27,717 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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] [2024-11-07 23:04:27,717 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-07 23:04:27,717 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting alt_bzeroErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-07 23:04:27,717 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 23:04:27,717 INFO L85 PathProgramCache]: Analyzing trace with hash -240672312, now seen corresponding path program 1 times [2024-11-07 23:04:27,717 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 23:04:27,717 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [748014300] [2024-11-07 23:04:27,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:04:27,717 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 23:04:27,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:04:27,957 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-07 23:04:27,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:04:27,971 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 23:04:27,972 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 23:04:27,972 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [748014300] [2024-11-07 23:04:27,972 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [748014300] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 23:04:27,972 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 23:04:27,972 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-07 23:04:27,973 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1831575637] [2024-11-07 23:04:27,973 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 23:04:27,973 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-07 23:04:27,973 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 23:04:27,973 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-07 23:04:27,974 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-07 23:04:27,974 INFO L87 Difference]: Start difference. First operand 897 states and 1264 transitions. Second operand has 4 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-07 23:04:28,157 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 23:04:28,158 INFO L93 Difference]: Finished difference Result 1171 states and 1640 transitions. [2024-11-07 23:04:28,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-07 23:04:28,158 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 74 [2024-11-07 23:04:28,158 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 23:04:28,165 INFO L225 Difference]: With dead ends: 1171 [2024-11-07 23:04:28,165 INFO L226 Difference]: Without dead ends: 1169 [2024-11-07 23:04:28,165 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-07 23:04:28,166 INFO L432 NwaCegarLoop]: 655 mSDtfsCounter, 572 mSDsluCounter, 1268 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 576 SdHoareTripleChecker+Valid, 1923 SdHoareTripleChecker+Invalid, 95 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-07 23:04:28,167 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [576 Valid, 1923 Invalid, 95 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-07 23:04:28,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1169 states. [2024-11-07 23:04:28,194 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1169 to 1159. [2024-11-07 23:04:28,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1159 states, 1105 states have (on average 1.4244343891402715) internal successors, (1574), 1122 states have internal predecessors, (1574), 32 states have call successors, (32), 10 states have call predecessors, (32), 8 states have return successors, (32), 28 states have call predecessors, (32), 32 states have call successors, (32) [2024-11-07 23:04:28,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1159 states to 1159 states and 1638 transitions. [2024-11-07 23:04:28,201 INFO L78 Accepts]: Start accepts. Automaton has 1159 states and 1638 transitions. Word has length 74 [2024-11-07 23:04:28,202 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 23:04:28,202 INFO L471 AbstractCegarLoop]: Abstraction has 1159 states and 1638 transitions. [2024-11-07 23:04:28,202 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-07 23:04:28,202 INFO L276 IsEmpty]: Start isEmpty. Operand 1159 states and 1638 transitions. [2024-11-07 23:04:28,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2024-11-07 23:04:28,203 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 23:04:28,204 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 23:04:28,204 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-07 23:04:28,204 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-07 23:04:28,204 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 23:04:28,204 INFO L85 PathProgramCache]: Analyzing trace with hash 980932139, now seen corresponding path program 1 times [2024-11-07 23:04:28,204 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 23:04:28,204 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [492103664] [2024-11-07 23:04:28,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:04:28,205 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 23:04:28,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:04:28,595 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-07 23:04:28,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:04:28,662 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-07 23:04:28,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:04:28,670 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 23:04:28,670 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 23:04:28,671 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [492103664] [2024-11-07 23:04:28,671 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [492103664] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 23:04:28,671 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2138650820] [2024-11-07 23:04:28,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:04:28,671 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 23:04:28,671 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 23:04:28,673 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-07 23:04:28,675 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-07 23:04:28,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:04:28,943 INFO L255 TraceCheckSpWp]: Trace formula consists of 506 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-07 23:04:28,947 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 23:04:29,049 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 23:04:29,050 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-07 23:04:29,051 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2138650820] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 23:04:29,051 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-07 23:04:29,051 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [8] total 11 [2024-11-07 23:04:29,051 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1976885734] [2024-11-07 23:04:29,051 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 23:04:29,052 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-07 23:04:29,052 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 23:04:29,053 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-07 23:04:29,053 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2024-11-07 23:04:29,053 INFO L87 Difference]: Start difference. First operand 1159 states and 1638 transitions. Second operand has 5 states, 4 states have (on average 19.5) internal successors, (78), 5 states have internal predecessors, (78), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-07 23:04:29,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 23:04:29,151 INFO L93 Difference]: Finished difference Result 1576 states and 2224 transitions. [2024-11-07 23:04:29,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-07 23:04:29,152 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 19.5) internal successors, (78), 5 states have internal predecessors, (78), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 83 [2024-11-07 23:04:29,153 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 23:04:29,161 INFO L225 Difference]: With dead ends: 1576 [2024-11-07 23:04:29,161 INFO L226 Difference]: Without dead ends: 1575 [2024-11-07 23:04:29,162 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 82 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2024-11-07 23:04:29,162 INFO L432 NwaCegarLoop]: 666 mSDtfsCounter, 636 mSDsluCounter, 1923 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 636 SdHoareTripleChecker+Valid, 2589 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 23:04:29,163 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [636 Valid, 2589 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 23:04:29,165 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1575 states. [2024-11-07 23:04:29,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1575 to 1525. [2024-11-07 23:04:29,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1525 states, 1464 states have (on average 1.4296448087431695) internal successors, (2093), 1483 states have internal predecessors, (2093), 37 states have call successors, (37), 13 states have call predecessors, (37), 10 states have return successors, (37), 30 states have call predecessors, (37), 37 states have call successors, (37) [2024-11-07 23:04:29,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1525 states to 1525 states and 2167 transitions. [2024-11-07 23:04:29,217 INFO L78 Accepts]: Start accepts. Automaton has 1525 states and 2167 transitions. Word has length 83 [2024-11-07 23:04:29,217 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 23:04:29,217 INFO L471 AbstractCegarLoop]: Abstraction has 1525 states and 2167 transitions. [2024-11-07 23:04:29,217 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 19.5) internal successors, (78), 5 states have internal predecessors, (78), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-07 23:04:29,217 INFO L276 IsEmpty]: Start isEmpty. Operand 1525 states and 2167 transitions. [2024-11-07 23:04:29,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-11-07 23:04:29,218 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 23:04:29,218 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 23:04:29,236 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-07 23:04:29,419 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,3 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 23:04:29,419 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-07 23:04:29,419 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 23:04:29,420 INFO L85 PathProgramCache]: Analyzing trace with hash 344125278, now seen corresponding path program 1 times [2024-11-07 23:04:29,420 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 23:04:29,420 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1755155785] [2024-11-07 23:04:29,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:04:29,420 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 23:04:29,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:04:29,726 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-07 23:04:29,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:04:29,788 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-07 23:04:29,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:04:29,796 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 23:04:29,797 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 23:04:29,797 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1755155785] [2024-11-07 23:04:29,797 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1755155785] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 23:04:29,797 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [927402958] [2024-11-07 23:04:29,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:04:29,798 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 23:04:29,798 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 23:04:29,800 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-07 23:04:29,801 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-07 23:04:30,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:04:30,088 INFO L255 TraceCheckSpWp]: Trace formula consists of 507 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-07 23:04:30,095 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 23:04:30,263 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 23:04:30,263 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 23:04:30,528 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 23:04:30,529 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [927402958] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 23:04:30,529 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 23:04:30,529 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 6, 7] total 18 [2024-11-07 23:04:30,529 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [545728182] [2024-11-07 23:04:30,529 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 23:04:30,529 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-07 23:04:30,529 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 23:04:30,530 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-07 23:04:30,530 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=269, Unknown=0, NotChecked=0, Total=342 [2024-11-07 23:04:30,531 INFO L87 Difference]: Start difference. First operand 1525 states and 2167 transitions. Second operand has 19 states, 18 states have (on average 12.555555555555555) internal successors, (226), 15 states have internal predecessors, (226), 5 states have call successors, (8), 7 states have call predecessors, (8), 5 states have return successors, (6), 2 states have call predecessors, (6), 5 states have call successors, (6) [2024-11-07 23:04:32,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 23:04:32,630 INFO L93 Difference]: Finished difference Result 4158 states and 5901 transitions. [2024-11-07 23:04:32,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2024-11-07 23:04:32,631 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 18 states have (on average 12.555555555555555) internal successors, (226), 15 states have internal predecessors, (226), 5 states have call successors, (8), 7 states have call predecessors, (8), 5 states have return successors, (6), 2 states have call predecessors, (6), 5 states have call successors, (6) Word has length 84 [2024-11-07 23:04:32,631 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 23:04:32,654 INFO L225 Difference]: With dead ends: 4158 [2024-11-07 23:04:32,654 INFO L226 Difference]: Without dead ends: 4156 [2024-11-07 23:04:32,657 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 209 GetRequests, 167 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 436 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=542, Invalid=1350, Unknown=0, NotChecked=0, Total=1892 [2024-11-07 23:04:32,657 INFO L432 NwaCegarLoop]: 720 mSDtfsCounter, 5941 mSDsluCounter, 11594 mSDsCounter, 0 mSdLazyCounter, 978 mSolverCounterSat, 305 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5966 SdHoareTripleChecker+Valid, 12314 SdHoareTripleChecker+Invalid, 1283 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 305 IncrementalHoareTripleChecker+Valid, 978 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-07 23:04:32,657 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5966 Valid, 12314 Invalid, 1283 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [305 Valid, 978 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-07 23:04:32,661 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4156 states. [2024-11-07 23:04:32,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4156 to 3179. [2024-11-07 23:04:32,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3179 states, 3059 states have (on average 1.4233409610983982) internal successors, (4354), 3080 states have internal predecessors, (4354), 83 states have call successors, (83), 28 states have call predecessors, (83), 23 states have return successors, (106), 70 states have call predecessors, (106), 83 states have call successors, (106) [2024-11-07 23:04:32,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3179 states to 3179 states and 4543 transitions. [2024-11-07 23:04:32,828 INFO L78 Accepts]: Start accepts. Automaton has 3179 states and 4543 transitions. Word has length 84 [2024-11-07 23:04:32,828 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 23:04:32,829 INFO L471 AbstractCegarLoop]: Abstraction has 3179 states and 4543 transitions. [2024-11-07 23:04:32,829 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 18 states have (on average 12.555555555555555) internal successors, (226), 15 states have internal predecessors, (226), 5 states have call successors, (8), 7 states have call predecessors, (8), 5 states have return successors, (6), 2 states have call predecessors, (6), 5 states have call successors, (6) [2024-11-07 23:04:32,830 INFO L276 IsEmpty]: Start isEmpty. Operand 3179 states and 4543 transitions. [2024-11-07 23:04:32,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2024-11-07 23:04:32,831 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 23:04:32,831 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 23:04:32,849 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-07 23:04:33,031 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,4 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 23:04:33,032 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-07 23:04:33,033 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 23:04:33,033 INFO L85 PathProgramCache]: Analyzing trace with hash -1558756002, now seen corresponding path program 1 times [2024-11-07 23:04:33,033 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 23:04:33,033 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1271883912] [2024-11-07 23:04:33,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:04:33,034 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 23:04:33,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:04:33,160 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 23:04:33,160 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 23:04:33,160 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1271883912] [2024-11-07 23:04:33,160 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1271883912] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 23:04:33,160 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 23:04:33,160 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-07 23:04:33,160 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [247386797] [2024-11-07 23:04:33,160 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 23:04:33,161 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 23:04:33,161 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 23:04:33,161 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 23:04:33,161 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 23:04:33,161 INFO L87 Difference]: Start difference. First operand 3179 states and 4543 transitions. Second operand has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 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) [2024-11-07 23:04:33,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 23:04:33,350 INFO L93 Difference]: Finished difference Result 6616 states and 9488 transitions. [2024-11-07 23:04:33,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 23:04:33,351 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 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) Word has length 82 [2024-11-07 23:04:33,351 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 23:04:33,365 INFO L225 Difference]: With dead ends: 6616 [2024-11-07 23:04:33,365 INFO L226 Difference]: Without dead ends: 3446 [2024-11-07 23:04:33,370 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 23:04:33,370 INFO L432 NwaCegarLoop]: 905 mSDtfsCounter, 420 mSDsluCounter, 640 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 425 SdHoareTripleChecker+Valid, 1545 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-07 23:04:33,370 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [425 Valid, 1545 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-07 23:04:33,374 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3446 states. [2024-11-07 23:04:33,471 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3446 to 3332. [2024-11-07 23:04:33,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3332 states, 3218 states have (on average 1.4334990677439403) internal successors, (4613), 3238 states have internal predecessors, (4613), 80 states have call successors, (80), 24 states have call predecessors, (80), 20 states have return successors, (102), 69 states have call predecessors, (102), 80 states have call successors, (102) [2024-11-07 23:04:33,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3332 states to 3332 states and 4795 transitions. [2024-11-07 23:04:33,488 INFO L78 Accepts]: Start accepts. Automaton has 3332 states and 4795 transitions. Word has length 82 [2024-11-07 23:04:33,488 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 23:04:33,488 INFO L471 AbstractCegarLoop]: Abstraction has 3332 states and 4795 transitions. [2024-11-07 23:04:33,488 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 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) [2024-11-07 23:04:33,488 INFO L276 IsEmpty]: Start isEmpty. Operand 3332 states and 4795 transitions. [2024-11-07 23:04:33,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-11-07 23:04:33,489 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 23:04:33,489 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 23:04:33,489 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-07 23:04:33,490 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting alt_bzeroErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-07 23:04:33,490 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 23:04:33,490 INFO L85 PathProgramCache]: Analyzing trace with hash -1908045712, now seen corresponding path program 1 times [2024-11-07 23:04:33,490 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 23:04:33,490 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1847229363] [2024-11-07 23:04:33,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:04:33,491 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 23:04:33,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:04:33,750 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-07 23:04:33,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:04:33,769 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-07 23:04:33,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:04:33,800 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-11-07 23:04:33,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:04:33,809 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-11-07 23:04:33,809 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 23:04:33,809 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1847229363] [2024-11-07 23:04:33,809 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1847229363] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 23:04:33,809 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2003652770] [2024-11-07 23:04:33,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:04:33,809 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 23:04:33,810 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 23:04:33,812 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-07 23:04:33,814 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-07 23:04:34,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:04:34,144 INFO L255 TraceCheckSpWp]: Trace formula consists of 601 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-07 23:04:34,150 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 23:04:34,285 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 23:04:34,285 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 23:04:34,489 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-11-07 23:04:34,489 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2003652770] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-07 23:04:34,489 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-07 23:04:34,489 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7, 4] total 13 [2024-11-07 23:04:34,489 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2023728059] [2024-11-07 23:04:34,489 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 23:04:34,489 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-07 23:04:34,489 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 23:04:34,490 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-07 23:04:34,490 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=129, Unknown=0, NotChecked=0, Total=182 [2024-11-07 23:04:34,490 INFO L87 Difference]: Start difference. First operand 3332 states and 4795 transitions. Second operand has 6 states, 5 states have (on average 16.0) internal successors, (80), 6 states have internal predecessors, (80), 2 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-07 23:04:34,609 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 23:04:34,609 INFO L93 Difference]: Finished difference Result 3332 states and 4795 transitions. [2024-11-07 23:04:34,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 23:04:34,610 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 16.0) internal successors, (80), 6 states have internal predecessors, (80), 2 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 93 [2024-11-07 23:04:34,610 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 23:04:34,624 INFO L225 Difference]: With dead ends: 3332 [2024-11-07 23:04:34,624 INFO L226 Difference]: Without dead ends: 3331 [2024-11-07 23:04:34,625 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 194 GetRequests, 181 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=53, Invalid=129, Unknown=0, NotChecked=0, Total=182 [2024-11-07 23:04:34,625 INFO L432 NwaCegarLoop]: 671 mSDtfsCounter, 1816 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1816 SdHoareTripleChecker+Valid, 671 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-07 23:04:34,626 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1816 Valid, 671 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-07 23:04:34,629 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3331 states. [2024-11-07 23:04:34,735 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3331 to 3331. [2024-11-07 23:04:34,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3331 states, 3218 states have (on average 1.4319453076444997) internal successors, (4608), 3237 states have internal predecessors, (4608), 80 states have call successors, (80), 24 states have call predecessors, (80), 20 states have return successors, (102), 69 states have call predecessors, (102), 80 states have call successors, (102) [2024-11-07 23:04:34,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3331 states to 3331 states and 4790 transitions. [2024-11-07 23:04:34,750 INFO L78 Accepts]: Start accepts. Automaton has 3331 states and 4790 transitions. Word has length 93 [2024-11-07 23:04:34,750 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 23:04:34,750 INFO L471 AbstractCegarLoop]: Abstraction has 3331 states and 4790 transitions. [2024-11-07 23:04:34,750 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 16.0) internal successors, (80), 6 states have internal predecessors, (80), 2 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-07 23:04:34,751 INFO L276 IsEmpty]: Start isEmpty. Operand 3331 states and 4790 transitions. [2024-11-07 23:04:34,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-11-07 23:04:34,751 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 23:04:34,752 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 23:04:34,769 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-07 23:04:34,955 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-11-07 23:04:34,956 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting alt_bzeroErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-07 23:04:34,956 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 23:04:34,957 INFO L85 PathProgramCache]: Analyzing trace with hash 980125141, now seen corresponding path program 1 times [2024-11-07 23:04:34,957 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 23:04:34,957 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [484988068] [2024-11-07 23:04:34,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:04:34,957 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 23:04:34,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:04:35,180 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-07 23:04:35,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:04:35,198 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-07 23:04:35,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:04:35,232 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-11-07 23:04:35,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:04:35,242 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-11-07 23:04:35,242 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 23:04:35,242 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [484988068] [2024-11-07 23:04:35,242 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [484988068] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 23:04:35,242 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [120064653] [2024-11-07 23:04:35,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:04:35,242 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 23:04:35,242 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 23:04:35,244 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-07 23:04:35,246 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-07 23:04:35,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:04:35,581 INFO L255 TraceCheckSpWp]: Trace formula consists of 602 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-07 23:04:35,584 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 23:04:35,730 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 23:04:35,731 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 23:04:35,924 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-11-07 23:04:35,925 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [120064653] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 23:04:35,925 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 23:04:35,925 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 4, 5] total 13 [2024-11-07 23:04:35,925 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1790708949] [2024-11-07 23:04:35,925 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 23:04:35,926 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-07 23:04:35,926 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 23:04:35,927 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-07 23:04:35,927 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=124, Unknown=0, NotChecked=0, Total=182 [2024-11-07 23:04:35,927 INFO L87 Difference]: Start difference. First operand 3331 states and 4790 transitions. Second operand has 14 states, 13 states have (on average 18.076923076923077) internal successors, (235), 12 states have internal predecessors, (235), 5 states have call successors, (11), 8 states have call predecessors, (11), 5 states have return successors, (9), 5 states have call predecessors, (9), 5 states have call successors, (9) [2024-11-07 23:04:36,899 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 23:04:36,900 INFO L93 Difference]: Finished difference Result 6509 states and 9324 transitions. [2024-11-07 23:04:36,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-07 23:04:36,901 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 18.076923076923077) internal successors, (235), 12 states have internal predecessors, (235), 5 states have call successors, (11), 8 states have call predecessors, (11), 5 states have return successors, (9), 5 states have call predecessors, (9), 5 states have call successors, (9) Word has length 94 [2024-11-07 23:04:36,901 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 23:04:36,924 INFO L225 Difference]: With dead ends: 6509 [2024-11-07 23:04:36,925 INFO L226 Difference]: Without dead ends: 6508 [2024-11-07 23:04:36,926 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 218 GetRequests, 192 SyntacticMatches, 1 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 128 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=231, Invalid=471, Unknown=0, NotChecked=0, Total=702 [2024-11-07 23:04:36,927 INFO L432 NwaCegarLoop]: 634 mSDtfsCounter, 2496 mSDsluCounter, 4912 mSDsCounter, 0 mSdLazyCounter, 369 mSolverCounterSat, 163 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2515 SdHoareTripleChecker+Valid, 5546 SdHoareTripleChecker+Invalid, 532 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 163 IncrementalHoareTripleChecker+Valid, 369 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-07 23:04:36,927 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2515 Valid, 5546 Invalid, 532 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [163 Valid, 369 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-07 23:04:36,933 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6508 states. [2024-11-07 23:04:37,082 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6508 to 6070. [2024-11-07 23:04:37,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6070 states, 5848 states have (on average 1.427325581395349) internal successors, (8347), 5872 states have internal predecessors, (8347), 159 states have call successors, (159), 56 states have call predecessors, (159), 50 states have return successors, (197), 141 states have call predecessors, (197), 159 states have call successors, (197) [2024-11-07 23:04:37,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6070 states to 6070 states and 8703 transitions. [2024-11-07 23:04:37,108 INFO L78 Accepts]: Start accepts. Automaton has 6070 states and 8703 transitions. Word has length 94 [2024-11-07 23:04:37,109 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 23:04:37,109 INFO L471 AbstractCegarLoop]: Abstraction has 6070 states and 8703 transitions. [2024-11-07 23:04:37,109 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 18.076923076923077) internal successors, (235), 12 states have internal predecessors, (235), 5 states have call successors, (11), 8 states have call predecessors, (11), 5 states have return successors, (9), 5 states have call predecessors, (9), 5 states have call successors, (9) [2024-11-07 23:04:37,109 INFO L276 IsEmpty]: Start isEmpty. Operand 6070 states and 8703 transitions. [2024-11-07 23:04:37,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2024-11-07 23:04:37,110 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 23:04:37,110 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 23:04:37,129 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-07 23:04:37,314 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2024-11-07 23:04:37,315 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-07 23:04:37,315 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 23:04:37,316 INFO L85 PathProgramCache]: Analyzing trace with hash 2083756214, now seen corresponding path program 1 times [2024-11-07 23:04:37,316 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 23:04:37,316 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1290354933] [2024-11-07 23:04:37,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:04:37,316 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 23:04:37,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:04:37,649 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-07 23:04:37,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:04:37,666 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-07 23:04:37,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:04:37,671 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-11-07 23:04:37,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:04:37,678 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-11-07 23:04:37,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:04:37,683 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-07 23:04:37,683 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 23:04:37,683 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1290354933] [2024-11-07 23:04:37,683 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1290354933] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 23:04:37,683 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 23:04:37,684 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-07 23:04:37,684 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [995425626] [2024-11-07 23:04:37,684 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 23:04:37,684 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-07 23:04:37,684 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 23:04:37,685 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-07 23:04:37,685 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-07 23:04:37,685 INFO L87 Difference]: Start difference. First operand 6070 states and 8703 transitions. Second operand has 6 states, 5 states have (on average 20.0) internal successors, (100), 4 states have internal predecessors, (100), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-07 23:04:38,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 23:04:38,351 INFO L93 Difference]: Finished difference Result 8326 states and 11950 transitions. [2024-11-07 23:04:38,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-07 23:04:38,351 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 20.0) internal successors, (100), 4 states have internal predecessors, (100), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 120 [2024-11-07 23:04:38,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 23:04:38,387 INFO L225 Difference]: With dead ends: 8326 [2024-11-07 23:04:38,387 INFO L226 Difference]: Without dead ends: 8324 [2024-11-07 23:04:38,389 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-07 23:04:38,390 INFO L432 NwaCegarLoop]: 621 mSDtfsCounter, 564 mSDsluCounter, 2296 mSDsCounter, 0 mSdLazyCounter, 383 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 575 SdHoareTripleChecker+Valid, 2917 SdHoareTripleChecker+Invalid, 438 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 383 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-07 23:04:38,390 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [575 Valid, 2917 Invalid, 438 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 383 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-07 23:04:38,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8324 states. [2024-11-07 23:04:38,551 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8324 to 6238. [2024-11-07 23:04:38,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6238 states, 6007 states have (on average 1.4225070750790745) internal successors, (8545), 6032 states have internal predecessors, (8545), 168 states have call successors, (168), 56 states have call predecessors, (168), 50 states have return successors, (209), 149 states have call predecessors, (209), 168 states have call successors, (209) [2024-11-07 23:04:38,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6238 states to 6238 states and 8922 transitions. [2024-11-07 23:04:38,591 INFO L78 Accepts]: Start accepts. Automaton has 6238 states and 8922 transitions. Word has length 120 [2024-11-07 23:04:38,592 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 23:04:38,592 INFO L471 AbstractCegarLoop]: Abstraction has 6238 states and 8922 transitions. [2024-11-07 23:04:38,592 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 20.0) internal successors, (100), 4 states have internal predecessors, (100), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-07 23:04:38,593 INFO L276 IsEmpty]: Start isEmpty. Operand 6238 states and 8922 transitions. [2024-11-07 23:04:38,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2024-11-07 23:04:38,599 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 23:04:38,599 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 23:04:38,599 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-07 23:04:38,599 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-07 23:04:38,600 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 23:04:38,600 INFO L85 PathProgramCache]: Analyzing trace with hash -1429916002, now seen corresponding path program 1 times [2024-11-07 23:04:38,600 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 23:04:38,600 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [193713612] [2024-11-07 23:04:38,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:04:38,600 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 23:04:38,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:04:38,922 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-07 23:04:38,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:04:38,988 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-07 23:04:38,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:04:38,993 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-11-07 23:04:38,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:04:39,002 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-11-07 23:04:39,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:04:39,007 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-07 23:04:39,007 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 23:04:39,007 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [193713612] [2024-11-07 23:04:39,008 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [193713612] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 23:04:39,008 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1853797225] [2024-11-07 23:04:39,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:04:39,008 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 23:04:39,008 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 23:04:39,010 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-07 23:04:39,012 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-07 23:04:39,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:04:39,425 INFO L255 TraceCheckSpWp]: Trace formula consists of 795 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-07 23:04:39,429 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 23:04:39,559 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-11-07 23:04:39,559 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-07 23:04:39,559 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1853797225] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 23:04:39,559 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-07 23:04:39,560 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [8] total 12 [2024-11-07 23:04:39,560 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1285646049] [2024-11-07 23:04:39,560 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 23:04:39,560 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-07 23:04:39,560 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 23:04:39,561 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-07 23:04:39,561 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2024-11-07 23:04:39,561 INFO L87 Difference]: Start difference. First operand 6238 states and 8922 transitions. Second operand has 7 states, 7 states have (on average 16.142857142857142) internal successors, (113), 5 states have internal predecessors, (113), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-07 23:04:39,822 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 23:04:39,823 INFO L93 Difference]: Finished difference Result 11822 states and 16948 transitions. [2024-11-07 23:04:39,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-07 23:04:39,824 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.142857142857142) internal successors, (113), 5 states have internal predecessors, (113), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) Word has length 127 [2024-11-07 23:04:39,824 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 23:04:39,841 INFO L225 Difference]: With dead ends: 11822 [2024-11-07 23:04:39,842 INFO L226 Difference]: Without dead ends: 5988 [2024-11-07 23:04:39,852 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 129 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=165, Unknown=0, NotChecked=0, Total=210 [2024-11-07 23:04:39,853 INFO L432 NwaCegarLoop]: 651 mSDtfsCounter, 161 mSDsluCounter, 2523 mSDsCounter, 0 mSdLazyCounter, 167 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 162 SdHoareTripleChecker+Valid, 3174 SdHoareTripleChecker+Invalid, 182 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 167 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-07 23:04:39,853 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [162 Valid, 3174 Invalid, 182 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 167 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-07 23:04:39,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5988 states. [2024-11-07 23:04:40,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5988 to 5988. [2024-11-07 23:04:40,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5988 states, 5774 states have (on average 1.4255282299965362) internal successors, (8231), 5797 states have internal predecessors, (8231), 157 states have call successors, (157), 50 states have call predecessors, (157), 44 states have return successors, (192), 140 states have call predecessors, (192), 157 states have call successors, (192) [2024-11-07 23:04:40,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5988 states to 5988 states and 8580 transitions. [2024-11-07 23:04:40,034 INFO L78 Accepts]: Start accepts. Automaton has 5988 states and 8580 transitions. Word has length 127 [2024-11-07 23:04:40,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 23:04:40,035 INFO L471 AbstractCegarLoop]: Abstraction has 5988 states and 8580 transitions. [2024-11-07 23:04:40,035 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.142857142857142) internal successors, (113), 5 states have internal predecessors, (113), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-07 23:04:40,035 INFO L276 IsEmpty]: Start isEmpty. Operand 5988 states and 8580 transitions. [2024-11-07 23:04:40,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2024-11-07 23:04:40,036 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 23:04:40,037 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 23:04:40,057 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-11-07 23:04:40,241 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2024-11-07 23:04:40,242 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-07 23:04:40,242 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 23:04:40,243 INFO L85 PathProgramCache]: Analyzing trace with hash 2038802715, now seen corresponding path program 1 times [2024-11-07 23:04:40,243 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 23:04:40,243 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [420374794] [2024-11-07 23:04:40,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:04:40,243 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 23:04:40,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:04:40,772 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-07 23:04:40,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:04:40,779 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-07 23:04:40,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:04:40,790 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-07 23:04:40,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:04:40,860 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-11-07 23:04:40,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:04:40,871 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-07 23:04:40,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:04:40,877 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-07 23:04:40,878 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 23:04:40,878 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [420374794] [2024-11-07 23:04:40,878 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [420374794] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 23:04:40,878 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1061994401] [2024-11-07 23:04:40,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:04:40,879 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 23:04:40,879 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 23:04:40,881 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-07 23:04:40,884 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-07 23:04:41,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:04:41,292 INFO L255 TraceCheckSpWp]: Trace formula consists of 805 conjuncts, 28 conjuncts are in the unsatisfiable core [2024-11-07 23:04:41,295 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 23:04:41,510 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-07 23:04:41,512 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-07 23:04:41,512 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1061994401] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 23:04:41,512 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-07 23:04:41,512 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [7] total 12 [2024-11-07 23:04:41,513 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1019727604] [2024-11-07 23:04:41,513 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 23:04:41,513 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-07 23:04:41,513 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 23:04:41,514 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-07 23:04:41,514 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2024-11-07 23:04:41,514 INFO L87 Difference]: Start difference. First operand 5988 states and 8580 transitions. Second operand has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 7 states have internal predecessors, (111), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-07 23:04:42,366 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 23:04:42,366 INFO L93 Difference]: Finished difference Result 12394 states and 17725 transitions. [2024-11-07 23:04:42,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-07 23:04:42,367 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 7 states have internal predecessors, (111), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 132 [2024-11-07 23:04:42,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 23:04:42,382 INFO L225 Difference]: With dead ends: 12394 [2024-11-07 23:04:42,382 INFO L226 Difference]: Without dead ends: 6495 [2024-11-07 23:04:42,389 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 145 GetRequests, 135 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2024-11-07 23:04:42,390 INFO L432 NwaCegarLoop]: 654 mSDtfsCounter, 15 mSDsluCounter, 2600 mSDsCounter, 0 mSdLazyCounter, 795 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 3254 SdHoareTripleChecker+Invalid, 798 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 795 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-07 23:04:42,391 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 3254 Invalid, 798 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 795 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-07 23:04:42,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6495 states. [2024-11-07 23:04:42,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6495 to 6443. [2024-11-07 23:04:42,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6443 states, 6229 states have (on average 1.411141435222347) internal successors, (8790), 6252 states have internal predecessors, (8790), 157 states have call successors, (157), 50 states have call predecessors, (157), 44 states have return successors, (192), 140 states have call predecessors, (192), 157 states have call successors, (192) [2024-11-07 23:04:42,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6443 states to 6443 states and 9139 transitions. [2024-11-07 23:04:42,543 INFO L78 Accepts]: Start accepts. Automaton has 6443 states and 9139 transitions. Word has length 132 [2024-11-07 23:04:42,543 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 23:04:42,543 INFO L471 AbstractCegarLoop]: Abstraction has 6443 states and 9139 transitions. [2024-11-07 23:04:42,544 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 7 states have internal predecessors, (111), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-07 23:04:42,544 INFO L276 IsEmpty]: Start isEmpty. Operand 6443 states and 9139 transitions. [2024-11-07 23:04:42,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2024-11-07 23:04:42,545 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 23:04:42,545 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 23:04:42,565 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-07 23:04:42,749 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,8 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 23:04:42,750 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-07 23:04:42,751 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 23:04:42,751 INFO L85 PathProgramCache]: Analyzing trace with hash 1820581846, now seen corresponding path program 1 times [2024-11-07 23:04:42,751 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 23:04:42,751 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1196450066] [2024-11-07 23:04:42,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:04:42,752 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 23:04:42,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:04:43,108 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-11-07 23:04:43,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:04:43,119 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-07 23:04:43,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:04:43,136 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-07 23:04:43,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:04:43,141 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-11-07 23:04:43,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:04:43,148 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-11-07 23:04:43,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:04:43,153 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-07 23:04:43,153 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 23:04:43,154 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1196450066] [2024-11-07 23:04:43,154 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1196450066] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 23:04:43,154 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 23:04:43,154 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-07 23:04:43,155 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [757475845] [2024-11-07 23:04:43,155 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 23:04:43,155 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-07 23:04:43,155 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 23:04:43,156 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-07 23:04:43,156 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-07 23:04:43,156 INFO L87 Difference]: Start difference. First operand 6443 states and 9139 transitions. Second operand has 9 states, 9 states have (on average 12.444444444444445) internal successors, (112), 7 states have internal predecessors, (112), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-07 23:04:44,173 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 23:04:44,173 INFO L93 Difference]: Finished difference Result 12856 states and 18264 transitions. [2024-11-07 23:04:44,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-07 23:04:44,173 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.444444444444445) internal successors, (112), 7 states have internal predecessors, (112), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 133 [2024-11-07 23:04:44,174 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 23:04:44,191 INFO L225 Difference]: With dead ends: 12856 [2024-11-07 23:04:44,191 INFO L226 Difference]: Without dead ends: 6547 [2024-11-07 23:04:44,201 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2024-11-07 23:04:44,202 INFO L432 NwaCegarLoop]: 627 mSDtfsCounter, 57 mSDsluCounter, 3541 mSDsCounter, 0 mSdLazyCounter, 1194 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 4168 SdHoareTripleChecker+Invalid, 1224 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 1194 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-07 23:04:44,202 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 4168 Invalid, 1224 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 1194 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-07 23:04:44,206 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6547 states. [2024-11-07 23:04:44,322 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6547 to 6495. [2024-11-07 23:04:44,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6495 states, 6281 states have (on average 1.4118770896354085) internal successors, (8868), 6304 states have internal predecessors, (8868), 157 states have call successors, (157), 50 states have call predecessors, (157), 44 states have return successors, (192), 140 states have call predecessors, (192), 157 states have call successors, (192) [2024-11-07 23:04:44,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6495 states to 6495 states and 9217 transitions. [2024-11-07 23:04:44,342 INFO L78 Accepts]: Start accepts. Automaton has 6495 states and 9217 transitions. Word has length 133 [2024-11-07 23:04:44,344 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 23:04:44,344 INFO L471 AbstractCegarLoop]: Abstraction has 6495 states and 9217 transitions. [2024-11-07 23:04:44,344 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.444444444444445) internal successors, (112), 7 states have internal predecessors, (112), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-07 23:04:44,344 INFO L276 IsEmpty]: Start isEmpty. Operand 6495 states and 9217 transitions. [2024-11-07 23:04:44,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-11-07 23:04:44,345 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 23:04:44,346 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 23:04:44,346 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-07 23:04:44,346 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-07 23:04:44,346 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 23:04:44,346 INFO L85 PathProgramCache]: Analyzing trace with hash 219360999, now seen corresponding path program 1 times [2024-11-07 23:04:44,346 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 23:04:44,347 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1746366947] [2024-11-07 23:04:44,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:04:44,347 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 23:04:44,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:04:44,881 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-11-07 23:04:44,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:04:44,888 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-07 23:04:44,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:04:44,909 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-07 23:04:44,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:04:44,914 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-07 23:04:44,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:04:44,920 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2024-11-07 23:04:44,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:04:44,923 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-07 23:04:44,924 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 23:04:44,924 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1746366947] [2024-11-07 23:04:44,924 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1746366947] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 23:04:44,924 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 23:04:44,924 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-07 23:04:44,924 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1748179498] [2024-11-07 23:04:44,924 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 23:04:44,924 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-07 23:04:44,924 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 23:04:44,925 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-07 23:04:44,925 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2024-11-07 23:04:44,926 INFO L87 Difference]: Start difference. First operand 6495 states and 9217 transitions. Second operand has 11 states, 11 states have (on average 10.272727272727273) internal successors, (113), 9 states have internal predecessors, (113), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-07 23:04:46,100 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 23:04:46,101 INFO L93 Difference]: Finished difference Result 13143 states and 18667 transitions. [2024-11-07 23:04:46,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-07 23:04:46,101 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 10.272727272727273) internal successors, (113), 9 states have internal predecessors, (113), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 134 [2024-11-07 23:04:46,102 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 23:04:46,119 INFO L225 Difference]: With dead ends: 13143 [2024-11-07 23:04:46,120 INFO L226 Difference]: Without dead ends: 6781 [2024-11-07 23:04:46,128 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=35, Invalid=175, Unknown=0, NotChecked=0, Total=210 [2024-11-07 23:04:46,128 INFO L432 NwaCegarLoop]: 622 mSDtfsCounter, 79 mSDsluCounter, 4625 mSDsCounter, 0 mSdLazyCounter, 1484 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 80 SdHoareTripleChecker+Valid, 5247 SdHoareTripleChecker+Invalid, 1516 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 1484 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-07 23:04:46,129 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [80 Valid, 5247 Invalid, 1516 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 1484 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-07 23:04:46,133 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6781 states. [2024-11-07 23:04:46,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6781 to 6651. [2024-11-07 23:04:46,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6651 states, 6437 states have (on average 1.4119931645176325) internal successors, (9089), 6460 states have internal predecessors, (9089), 157 states have call successors, (157), 50 states have call predecessors, (157), 44 states have return successors, (192), 140 states have call predecessors, (192), 157 states have call successors, (192) [2024-11-07 23:04:46,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6651 states to 6651 states and 9438 transitions. [2024-11-07 23:04:46,274 INFO L78 Accepts]: Start accepts. Automaton has 6651 states and 9438 transitions. Word has length 134 [2024-11-07 23:04:46,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 23:04:46,274 INFO L471 AbstractCegarLoop]: Abstraction has 6651 states and 9438 transitions. [2024-11-07 23:04:46,274 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 10.272727272727273) internal successors, (113), 9 states have internal predecessors, (113), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-07 23:04:46,275 INFO L276 IsEmpty]: Start isEmpty. Operand 6651 states and 9438 transitions. [2024-11-07 23:04:46,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-11-07 23:04:46,276 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 23:04:46,276 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 23:04:46,276 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-07 23:04:46,276 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-07 23:04:46,277 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 23:04:46,277 INFO L85 PathProgramCache]: Analyzing trace with hash 1436897024, now seen corresponding path program 1 times [2024-11-07 23:04:46,277 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 23:04:46,277 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [105888954] [2024-11-07 23:04:46,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:04:46,277 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 23:04:46,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:04:46,576 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-11-07 23:04:46,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:04:46,582 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-07 23:04:46,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:04:46,595 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-07 23:04:46,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:04:46,678 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-07 23:04:46,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:04:46,684 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2024-11-07 23:04:46,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:04:46,687 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-07 23:04:46,687 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 23:04:46,687 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [105888954] [2024-11-07 23:04:46,687 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [105888954] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 23:04:46,687 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1581421506] [2024-11-07 23:04:46,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:04:46,687 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 23:04:46,687 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 23:04:46,690 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-07 23:04:46,691 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-07 23:04:47,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:04:47,187 INFO L255 TraceCheckSpWp]: Trace formula consists of 807 conjuncts, 31 conjuncts are in the unsatisfiable core [2024-11-07 23:04:47,192 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 23:04:47,197 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-11-07 23:04:47,218 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-11-07 23:04:47,238 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 23 treesize of output 22 [2024-11-07 23:04:47,943 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-07 23:04:47,943 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-07 23:04:47,944 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1581421506] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 23:04:47,944 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-07 23:04:47,944 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [7] total 16 [2024-11-07 23:04:47,944 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [178457978] [2024-11-07 23:04:47,944 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 23:04:47,946 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-07 23:04:47,947 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 23:04:47,948 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-07 23:04:47,948 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=201, Unknown=0, NotChecked=0, Total=240 [2024-11-07 23:04:47,948 INFO L87 Difference]: Start difference. First operand 6651 states and 9438 transitions. Second operand has 11 states, 11 states have (on average 10.272727272727273) internal successors, (113), 11 states have internal predecessors, (113), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-07 23:04:49,581 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 23:04:49,581 INFO L93 Difference]: Finished difference Result 15264 states and 21721 transitions. [2024-11-07 23:04:49,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-07 23:04:49,582 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 10.272727272727273) internal successors, (113), 11 states have internal predecessors, (113), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 134 [2024-11-07 23:04:49,582 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 23:04:49,613 INFO L225 Difference]: With dead ends: 15264 [2024-11-07 23:04:49,614 INFO L226 Difference]: Without dead ends: 8745 [2024-11-07 23:04:49,626 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 155 GetRequests, 132 SyntacticMatches, 1 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=105, Invalid=447, Unknown=0, NotChecked=0, Total=552 [2024-11-07 23:04:49,627 INFO L432 NwaCegarLoop]: 653 mSDtfsCounter, 880 mSDsluCounter, 3156 mSDsCounter, 0 mSdLazyCounter, 1026 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 892 SdHoareTripleChecker+Valid, 3809 SdHoareTripleChecker+Invalid, 1033 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1026 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-07 23:04:49,627 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [892 Valid, 3809 Invalid, 1033 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 1026 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-07 23:04:49,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8745 states. [2024-11-07 23:04:49,798 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8745 to 6639. [2024-11-07 23:04:49,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6639 states, 6425 states have (on average 1.411828793774319) internal successors, (9071), 6448 states have internal predecessors, (9071), 157 states have call successors, (157), 50 states have call predecessors, (157), 44 states have return successors, (192), 140 states have call predecessors, (192), 157 states have call successors, (192) [2024-11-07 23:04:49,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6639 states to 6639 states and 9420 transitions. [2024-11-07 23:04:49,879 INFO L78 Accepts]: Start accepts. Automaton has 6639 states and 9420 transitions. Word has length 134 [2024-11-07 23:04:49,881 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 23:04:49,882 INFO L471 AbstractCegarLoop]: Abstraction has 6639 states and 9420 transitions. [2024-11-07 23:04:49,882 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 10.272727272727273) internal successors, (113), 11 states have internal predecessors, (113), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-07 23:04:49,886 INFO L276 IsEmpty]: Start isEmpty. Operand 6639 states and 9420 transitions. [2024-11-07 23:04:49,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2024-11-07 23:04:49,888 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 23:04:49,888 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 23:04:49,913 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2024-11-07 23:04:50,091 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2024-11-07 23:04:50,092 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-07 23:04:50,093 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 23:04:50,093 INFO L85 PathProgramCache]: Analyzing trace with hash 786605260, now seen corresponding path program 1 times [2024-11-07 23:04:50,093 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 23:04:50,093 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1861939796] [2024-11-07 23:04:50,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:04:50,093 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 23:04:50,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:04:50,442 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-07 23:04:50,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:04:50,448 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-07 23:04:50,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:04:50,464 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-11-07 23:04:50,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:04:50,467 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-07 23:04:50,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:04:50,472 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-11-07 23:04:50,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:04:50,475 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-07 23:04:50,476 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 23:04:50,476 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1861939796] [2024-11-07 23:04:50,476 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1861939796] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 23:04:50,476 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 23:04:50,476 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-07 23:04:50,476 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1398507048] [2024-11-07 23:04:50,476 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 23:04:50,476 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-07 23:04:50,476 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 23:04:50,477 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-07 23:04:50,477 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2024-11-07 23:04:50,477 INFO L87 Difference]: Start difference. First operand 6639 states and 9420 transitions. Second operand has 11 states, 11 states have (on average 10.454545454545455) internal successors, (115), 9 states have internal predecessors, (115), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-07 23:04:51,465 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 23:04:51,466 INFO L93 Difference]: Finished difference Result 13394 states and 19001 transitions. [2024-11-07 23:04:51,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-07 23:04:51,466 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 10.454545454545455) internal successors, (115), 9 states have internal predecessors, (115), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 136 [2024-11-07 23:04:51,467 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 23:04:51,484 INFO L225 Difference]: With dead ends: 13394 [2024-11-07 23:04:51,484 INFO L226 Difference]: Without dead ends: 6886 [2024-11-07 23:04:51,495 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2024-11-07 23:04:51,495 INFO L432 NwaCegarLoop]: 622 mSDtfsCounter, 65 mSDsluCounter, 3682 mSDsCounter, 0 mSdLazyCounter, 1112 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 4304 SdHoareTripleChecker+Invalid, 1143 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 1112 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-07 23:04:51,496 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 4304 Invalid, 1143 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 1112 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-07 23:04:51,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6886 states. [2024-11-07 23:04:51,658 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6886 to 6721. [2024-11-07 23:04:51,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6721 states, 6507 states have (on average 1.4107883817427387) internal successors, (9180), 6530 states have internal predecessors, (9180), 157 states have call successors, (157), 50 states have call predecessors, (157), 44 states have return successors, (192), 140 states have call predecessors, (192), 157 states have call successors, (192) [2024-11-07 23:04:51,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6721 states to 6721 states and 9529 transitions. [2024-11-07 23:04:51,680 INFO L78 Accepts]: Start accepts. Automaton has 6721 states and 9529 transitions. Word has length 136 [2024-11-07 23:04:51,680 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 23:04:51,680 INFO L471 AbstractCegarLoop]: Abstraction has 6721 states and 9529 transitions. [2024-11-07 23:04:51,680 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 10.454545454545455) internal successors, (115), 9 states have internal predecessors, (115), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-07 23:04:51,680 INFO L276 IsEmpty]: Start isEmpty. Operand 6721 states and 9529 transitions. [2024-11-07 23:04:51,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2024-11-07 23:04:51,682 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 23:04:51,682 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 23:04:51,682 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-07 23:04:51,682 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-07 23:04:51,683 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 23:04:51,683 INFO L85 PathProgramCache]: Analyzing trace with hash 1418064185, now seen corresponding path program 1 times [2024-11-07 23:04:51,683 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 23:04:51,683 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1567921104] [2024-11-07 23:04:51,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:04:51,683 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 23:04:51,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:04:52,027 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-07 23:04:52,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:04:52,032 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-07 23:04:52,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:04:52,043 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-11-07 23:04:52,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:04:52,106 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-11-07 23:04:52,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:04:52,112 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-11-07 23:04:52,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:04:52,115 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-07 23:04:52,115 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 23:04:52,116 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1567921104] [2024-11-07 23:04:52,116 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1567921104] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 23:04:52,116 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [780713342] [2024-11-07 23:04:52,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:04:52,116 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 23:04:52,116 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 23:04:52,118 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-07 23:04:52,120 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-07 23:04:52,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:04:52,595 INFO L255 TraceCheckSpWp]: Trace formula consists of 807 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-07 23:04:52,598 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 23:04:52,702 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-07 23:04:52,702 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-07 23:04:52,703 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [780713342] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 23:04:52,703 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-07 23:04:52,703 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [7] total 12 [2024-11-07 23:04:52,703 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1675091117] [2024-11-07 23:04:52,703 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 23:04:52,703 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-07 23:04:52,703 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 23:04:52,703 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-07 23:04:52,704 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2024-11-07 23:04:52,704 INFO L87 Difference]: Start difference. First operand 6721 states and 9529 transitions. Second operand has 7 states, 7 states have (on average 16.571428571428573) internal successors, (116), 7 states have internal predecessors, (116), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-07 23:04:53,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 23:04:53,269 INFO L93 Difference]: Finished difference Result 13471 states and 19122 transitions. [2024-11-07 23:04:53,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-07 23:04:53,269 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.571428571428573) internal successors, (116), 7 states have internal predecessors, (116), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 137 [2024-11-07 23:04:53,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 23:04:53,287 INFO L225 Difference]: With dead ends: 13471 [2024-11-07 23:04:53,287 INFO L226 Difference]: Without dead ends: 6903 [2024-11-07 23:04:53,294 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 140 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2024-11-07 23:04:53,294 INFO L432 NwaCegarLoop]: 650 mSDtfsCounter, 40 mSDsluCounter, 2750 mSDsCounter, 0 mSdLazyCounter, 662 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 3400 SdHoareTripleChecker+Invalid, 666 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 662 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-07 23:04:53,295 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 3400 Invalid, 666 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 662 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-07 23:04:53,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6903 states. [2024-11-07 23:04:53,426 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6903 to 6812. [2024-11-07 23:04:53,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6812 states, 6598 states have (on average 1.4110336465595634) internal successors, (9310), 6621 states have internal predecessors, (9310), 157 states have call successors, (157), 50 states have call predecessors, (157), 44 states have return successors, (192), 140 states have call predecessors, (192), 157 states have call successors, (192) [2024-11-07 23:04:53,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6812 states to 6812 states and 9659 transitions. [2024-11-07 23:04:53,448 INFO L78 Accepts]: Start accepts. Automaton has 6812 states and 9659 transitions. Word has length 137 [2024-11-07 23:04:53,448 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 23:04:53,448 INFO L471 AbstractCegarLoop]: Abstraction has 6812 states and 9659 transitions. [2024-11-07 23:04:53,448 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.571428571428573) internal successors, (116), 7 states have internal predecessors, (116), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-07 23:04:53,449 INFO L276 IsEmpty]: Start isEmpty. Operand 6812 states and 9659 transitions. [2024-11-07 23:04:53,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2024-11-07 23:04:53,450 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 23:04:53,450 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 23:04:53,472 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2024-11-07 23:04:53,650 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,10 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 23:04:53,651 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-07 23:04:53,651 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 23:04:53,651 INFO L85 PathProgramCache]: Analyzing trace with hash -1659367086, now seen corresponding path program 1 times [2024-11-07 23:04:53,651 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 23:04:53,651 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1184093546] [2024-11-07 23:04:53,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:04:53,651 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 23:04:53,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:04:54,052 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-07 23:04:54,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:04:54,057 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-07 23:04:54,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:04:54,067 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-11-07 23:04:54,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:04:54,120 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-11-07 23:04:54,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:04:54,126 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-11-07 23:04:54,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:04:54,130 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-07 23:04:54,131 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 23:04:54,131 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1184093546] [2024-11-07 23:04:54,131 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1184093546] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 23:04:54,131 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [950869662] [2024-11-07 23:04:54,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:04:54,131 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 23:04:54,131 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 23:04:54,134 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-07 23:04:54,136 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-07 23:04:54,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:04:54,687 INFO L255 TraceCheckSpWp]: Trace formula consists of 807 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-07 23:04:54,691 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 23:04:54,802 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 23:04:54,802 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-07 23:04:54,803 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [950869662] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 23:04:54,803 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-07 23:04:54,803 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [7] total 13 [2024-11-07 23:04:54,803 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1762082203] [2024-11-07 23:04:54,803 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 23:04:54,804 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-07 23:04:54,804 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 23:04:54,804 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-07 23:04:54,804 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=131, Unknown=0, NotChecked=0, Total=156 [2024-11-07 23:04:54,805 INFO L87 Difference]: Start difference. First operand 6812 states and 9659 transitions. Second operand has 9 states, 9 states have (on average 14.11111111111111) internal successors, (127), 9 states have internal predecessors, (127), 3 states have call successors, (5), 2 states have call predecessors, (5), 4 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2024-11-07 23:04:55,029 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 23:04:55,029 INFO L93 Difference]: Finished difference Result 10316 states and 14590 transitions. [2024-11-07 23:04:55,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-07 23:04:55,030 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 14.11111111111111) internal successors, (127), 9 states have internal predecessors, (127), 3 states have call successors, (5), 2 states have call predecessors, (5), 4 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) Word has length 137 [2024-11-07 23:04:55,030 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 23:04:55,044 INFO L225 Difference]: With dead ends: 10316 [2024-11-07 23:04:55,044 INFO L226 Difference]: Without dead ends: 3687 [2024-11-07 23:04:55,054 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 139 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2024-11-07 23:04:55,056 INFO L432 NwaCegarLoop]: 663 mSDtfsCounter, 13 mSDsluCounter, 4603 mSDsCounter, 0 mSdLazyCounter, 129 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 5266 SdHoareTripleChecker+Invalid, 135 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 129 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-07 23:04:55,056 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 5266 Invalid, 135 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 129 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-07 23:04:55,059 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3687 states. [2024-11-07 23:04:55,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3687 to 3685. [2024-11-07 23:04:55,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3685 states, 3547 states have (on average 1.4011840992387934) internal successors, (4970), 3563 states have internal predecessors, (4970), 86 states have call successors, (86), 42 states have call predecessors, (86), 39 states have return successors, (97), 79 states have call predecessors, (97), 86 states have call successors, (97) [2024-11-07 23:04:55,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3685 states to 3685 states and 5153 transitions. [2024-11-07 23:04:55,209 INFO L78 Accepts]: Start accepts. Automaton has 3685 states and 5153 transitions. Word has length 137 [2024-11-07 23:04:55,210 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 23:04:55,210 INFO L471 AbstractCegarLoop]: Abstraction has 3685 states and 5153 transitions. [2024-11-07 23:04:55,210 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 14.11111111111111) internal successors, (127), 9 states have internal predecessors, (127), 3 states have call successors, (5), 2 states have call predecessors, (5), 4 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2024-11-07 23:04:55,210 INFO L276 IsEmpty]: Start isEmpty. Operand 3685 states and 5153 transitions. [2024-11-07 23:04:55,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-11-07 23:04:55,211 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 23:04:55,212 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 23:04:55,231 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-11-07 23:04:55,412 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,11 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 23:04:55,412 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-07 23:04:55,413 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 23:04:55,413 INFO L85 PathProgramCache]: Analyzing trace with hash -109109404, now seen corresponding path program 1 times [2024-11-07 23:04:55,413 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 23:04:55,413 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [584888938] [2024-11-07 23:04:55,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:04:55,413 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 23:04:55,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:04:55,739 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-07 23:04:55,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:04:55,744 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-07 23:04:55,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:04:55,754 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-11-07 23:04:55,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:04:55,844 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-11-07 23:04:55,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:04:55,850 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-07 23:04:55,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:04:55,856 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 6 proven. 10 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-11-07 23:04:55,856 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 23:04:55,856 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [584888938] [2024-11-07 23:04:55,856 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [584888938] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 23:04:55,856 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1255912676] [2024-11-07 23:04:55,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:04:55,857 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 23:04:55,857 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 23:04:55,859 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-07 23:04:55,861 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-07 23:04:56,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:04:56,359 INFO L255 TraceCheckSpWp]: Trace formula consists of 837 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-11-07 23:04:56,361 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 23:04:56,474 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 23 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-07 23:04:56,474 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 23:04:56,615 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 6 proven. 10 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-11-07 23:04:56,615 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1255912676] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 23:04:56,615 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 23:04:56,616 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 10, 6] total 18 [2024-11-07 23:04:56,616 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [239162359] [2024-11-07 23:04:56,616 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 23:04:56,616 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-07 23:04:56,616 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 23:04:56,617 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-07 23:04:56,617 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=253, Unknown=0, NotChecked=0, Total=306 [2024-11-07 23:04:56,617 INFO L87 Difference]: Start difference. First operand 3685 states and 5153 transitions. Second operand has 18 states, 18 states have (on average 8.833333333333334) internal successors, (159), 16 states have internal predecessors, (159), 3 states have call successors, (12), 4 states have call predecessors, (12), 6 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2024-11-07 23:04:57,652 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 23:04:57,652 INFO L93 Difference]: Finished difference Result 7250 states and 10161 transitions. [2024-11-07 23:04:57,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2024-11-07 23:04:57,653 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 8.833333333333334) internal successors, (159), 16 states have internal predecessors, (159), 3 states have call successors, (12), 4 states have call predecessors, (12), 6 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) Word has length 139 [2024-11-07 23:04:57,653 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 23:04:57,665 INFO L225 Difference]: With dead ends: 7250 [2024-11-07 23:04:57,665 INFO L226 Difference]: Without dead ends: 3757 [2024-11-07 23:04:57,671 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 319 GetRequests, 280 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 316 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=258, Invalid=1382, Unknown=0, NotChecked=0, Total=1640 [2024-11-07 23:04:57,672 INFO L432 NwaCegarLoop]: 639 mSDtfsCounter, 102 mSDsluCounter, 6162 mSDsCounter, 0 mSdLazyCounter, 620 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 6801 SdHoareTripleChecker+Invalid, 666 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 620 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-07 23:04:57,672 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [102 Valid, 6801 Invalid, 666 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 620 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-07 23:04:57,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3757 states. [2024-11-07 23:04:57,758 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3757 to 3725. [2024-11-07 23:04:57,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3725 states, 3586 states have (on average 1.401282766313441) internal successors, (5025), 3599 states have internal predecessors, (5025), 86 states have call successors, (86), 46 states have call predecessors, (86), 40 states have return successors, (93), 79 states have call predecessors, (93), 86 states have call successors, (93) [2024-11-07 23:04:57,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3725 states to 3725 states and 5204 transitions. [2024-11-07 23:04:57,771 INFO L78 Accepts]: Start accepts. Automaton has 3725 states and 5204 transitions. Word has length 139 [2024-11-07 23:04:57,771 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 23:04:57,772 INFO L471 AbstractCegarLoop]: Abstraction has 3725 states and 5204 transitions. [2024-11-07 23:04:57,772 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 8.833333333333334) internal successors, (159), 16 states have internal predecessors, (159), 3 states have call successors, (12), 4 states have call predecessors, (12), 6 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2024-11-07 23:04:57,772 INFO L276 IsEmpty]: Start isEmpty. Operand 3725 states and 5204 transitions. [2024-11-07 23:04:57,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2024-11-07 23:04:57,773 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 23:04:57,773 INFO L215 NwaCegarLoop]: trace histogram [6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 23:04:57,794 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2024-11-07 23:04:57,974 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2024-11-07 23:04:57,975 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-07 23:04:57,975 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 23:04:57,975 INFO L85 PathProgramCache]: Analyzing trace with hash -544423374, now seen corresponding path program 2 times [2024-11-07 23:04:57,976 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 23:04:57,976 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1386609758] [2024-11-07 23:04:57,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:04:57,976 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 23:04:58,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:04:58,453 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-07 23:04:58,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:04:58,459 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-07 23:04:58,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:04:58,470 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-11-07 23:04:58,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:04:58,642 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-11-07 23:04:58,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:04:58,647 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-11-07 23:04:58,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:04:58,655 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 6 proven. 30 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-07 23:04:58,656 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 23:04:58,656 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1386609758] [2024-11-07 23:04:58,656 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1386609758] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 23:04:58,656 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1300178395] [2024-11-07 23:04:58,656 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-07 23:04:58,656 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 23:04:58,657 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 23:04:58,659 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-07 23:04:58,662 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-11-07 23:04:59,044 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-07 23:04:59,044 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-07 23:04:59,046 INFO L255 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-07 23:04:59,048 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 23:04:59,055 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 15 treesize of output 7 [2024-11-07 23:04:59,068 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2024-11-07 23:04:59,068 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-07 23:04:59,068 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1300178395] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 23:04:59,068 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-07 23:04:59,068 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [11] total 12 [2024-11-07 23:04:59,068 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [62385431] [2024-11-07 23:04:59,068 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 23:04:59,069 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 23:04:59,069 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 23:04:59,069 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 23:04:59,069 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2024-11-07 23:04:59,070 INFO L87 Difference]: Start difference. First operand 3725 states and 5204 transitions. Second operand has 3 states, 2 states have (on average 56.5) internal successors, (113), 3 states have internal predecessors, (113), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-07 23:04:59,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 23:04:59,129 INFO L93 Difference]: Finished difference Result 3725 states and 5204 transitions. [2024-11-07 23:04:59,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 23:04:59,130 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 56.5) internal successors, (113), 3 states have internal predecessors, (113), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 143 [2024-11-07 23:04:59,130 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 23:04:59,141 INFO L225 Difference]: With dead ends: 3725 [2024-11-07 23:04:59,142 INFO L226 Difference]: Without dead ends: 3724 [2024-11-07 23:04:59,143 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 160 GetRequests, 150 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2024-11-07 23:04:59,145 INFO L432 NwaCegarLoop]: 671 mSDtfsCounter, 1 mSDsluCounter, 669 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 1340 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 23:04:59,145 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 1340 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 23:04:59,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3724 states. [2024-11-07 23:04:59,249 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3724 to 3724. [2024-11-07 23:04:59,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3724 states, 3586 states have (on average 1.3996095928611265) internal successors, (5019), 3598 states have internal predecessors, (5019), 86 states have call successors, (86), 46 states have call predecessors, (86), 40 states have return successors, (93), 79 states have call predecessors, (93), 86 states have call successors, (93) [2024-11-07 23:04:59,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3724 states to 3724 states and 5198 transitions. [2024-11-07 23:04:59,261 INFO L78 Accepts]: Start accepts. Automaton has 3724 states and 5198 transitions. Word has length 143 [2024-11-07 23:04:59,261 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 23:04:59,262 INFO L471 AbstractCegarLoop]: Abstraction has 3724 states and 5198 transitions. [2024-11-07 23:04:59,262 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 56.5) internal successors, (113), 3 states have internal predecessors, (113), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-07 23:04:59,262 INFO L276 IsEmpty]: Start isEmpty. Operand 3724 states and 5198 transitions. [2024-11-07 23:04:59,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2024-11-07 23:04:59,264 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 23:04:59,264 INFO L215 NwaCegarLoop]: trace histogram [6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 23:04:59,282 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2024-11-07 23:04:59,464 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,13 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 23:04:59,465 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-07 23:04:59,465 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 23:04:59,465 INFO L85 PathProgramCache]: Analyzing trace with hash 302744693, now seen corresponding path program 1 times [2024-11-07 23:04:59,465 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 23:04:59,465 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [707396475] [2024-11-07 23:04:59,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:04:59,465 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 23:04:59,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:04:59,894 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-07 23:04:59,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:04:59,901 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-07 23:04:59,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:04:59,910 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-11-07 23:04:59,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:05:00,111 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-11-07 23:05:00,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:05:00,117 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-11-07 23:05:00,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:05:00,126 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 7 proven. 30 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-07 23:05:00,126 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 23:05:00,126 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [707396475] [2024-11-07 23:05:00,126 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [707396475] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 23:05:00,126 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [913953981] [2024-11-07 23:05:00,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:05:00,126 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 23:05:00,127 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 23:05:00,129 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-07 23:05:00,130 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-11-07 23:05:00,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:05:00,655 INFO L255 TraceCheckSpWp]: Trace formula consists of 898 conjuncts, 29 conjuncts are in the unsatisfiable core [2024-11-07 23:05:00,658 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 23:05:00,875 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 35 proven. 10 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-07 23:05:00,875 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 23:05:01,107 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 7 proven. 30 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-07 23:05:01,107 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [913953981] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 23:05:01,107 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 23:05:01,108 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 14, 9] total 28 [2024-11-07 23:05:01,108 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [425434940] [2024-11-07 23:05:01,108 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 23:05:01,108 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2024-11-07 23:05:01,109 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 23:05:01,109 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2024-11-07 23:05:01,110 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=130, Invalid=626, Unknown=0, NotChecked=0, Total=756 [2024-11-07 23:05:01,110 INFO L87 Difference]: Start difference. First operand 3724 states and 5198 transitions. Second operand has 28 states, 28 states have (on average 6.107142857142857) internal successors, (171), 26 states have internal predecessors, (171), 3 states have call successors, (12), 4 states have call predecessors, (12), 6 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2024-11-07 23:05:02,887 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 23:05:02,887 INFO L93 Difference]: Finished difference Result 6894 states and 9608 transitions. [2024-11-07 23:05:02,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2024-11-07 23:05:02,888 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 6.107142857142857) internal successors, (171), 26 states have internal predecessors, (171), 3 states have call successors, (12), 4 states have call predecessors, (12), 6 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) Word has length 144 [2024-11-07 23:05:02,888 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 23:05:02,899 INFO L225 Difference]: With dead ends: 6894 [2024-11-07 23:05:02,900 INFO L226 Difference]: Without dead ends: 3196 [2024-11-07 23:05:02,905 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 340 GetRequests, 283 SyntacticMatches, 0 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 689 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=534, Invalid=2888, Unknown=0, NotChecked=0, Total=3422 [2024-11-07 23:05:02,906 INFO L432 NwaCegarLoop]: 549 mSDtfsCounter, 126 mSDsluCounter, 9554 mSDsCounter, 0 mSdLazyCounter, 1415 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 126 SdHoareTripleChecker+Valid, 10103 SdHoareTripleChecker+Invalid, 1468 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 1415 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-07 23:05:02,906 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [126 Valid, 10103 Invalid, 1468 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 1415 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-07 23:05:02,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3196 states. [2024-11-07 23:05:03,046 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3196 to 3174. [2024-11-07 23:05:03,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3174 states, 3036 states have (on average 1.3784584980237153) internal successors, (4185), 3048 states have internal predecessors, (4185), 86 states have call successors, (86), 46 states have call predecessors, (86), 40 states have return successors, (93), 79 states have call predecessors, (93), 86 states have call successors, (93) [2024-11-07 23:05:03,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3174 states to 3174 states and 4364 transitions. [2024-11-07 23:05:03,060 INFO L78 Accepts]: Start accepts. Automaton has 3174 states and 4364 transitions. Word has length 144 [2024-11-07 23:05:03,060 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 23:05:03,060 INFO L471 AbstractCegarLoop]: Abstraction has 3174 states and 4364 transitions. [2024-11-07 23:05:03,060 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 6.107142857142857) internal successors, (171), 26 states have internal predecessors, (171), 3 states have call successors, (12), 4 states have call predecessors, (12), 6 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2024-11-07 23:05:03,061 INFO L276 IsEmpty]: Start isEmpty. Operand 3174 states and 4364 transitions. [2024-11-07 23:05:03,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2024-11-07 23:05:03,063 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 23:05:03,063 INFO L215 NwaCegarLoop]: trace histogram [15, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 23:05:03,083 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2024-11-07 23:05:03,263 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,14 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 23:05:03,264 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-07 23:05:03,264 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 23:05:03,264 INFO L85 PathProgramCache]: Analyzing trace with hash 810593628, now seen corresponding path program 2 times [2024-11-07 23:05:03,264 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 23:05:03,264 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1634709900] [2024-11-07 23:05:03,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:05:03,264 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 23:05:03,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:05:03,841 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-07 23:05:03,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:05:03,847 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-07 23:05:03,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:05:03,858 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-11-07 23:05:03,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:05:04,261 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-11-07 23:05:04,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:05:04,266 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-11-07 23:05:04,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:05:04,277 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 7 proven. 126 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2024-11-07 23:05:04,278 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 23:05:04,278 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1634709900] [2024-11-07 23:05:04,278 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1634709900] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 23:05:04,278 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1739050783] [2024-11-07 23:05:04,278 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-07 23:05:04,278 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 23:05:04,278 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 23:05:04,281 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-07 23:05:04,283 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-11-07 23:05:04,803 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-07 23:05:04,803 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-07 23:05:04,807 INFO L255 TraceCheckSpWp]: Trace formula consists of 1033 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-07 23:05:04,810 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 23:05:04,814 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-11-07 23:05:05,166 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 23 treesize of output 3 [2024-11-07 23:05:05,232 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 29 treesize of output 13 [2024-11-07 23:05:05,268 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 149 trivial. 0 not checked. [2024-11-07 23:05:05,268 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 23:05:14,599 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1739050783] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 23:05:14,600 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-07 23:05:14,600 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 8] total 24 [2024-11-07 23:05:14,600 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1388335997] [2024-11-07 23:05:14,600 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-07 23:05:14,600 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2024-11-07 23:05:14,600 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 23:05:14,601 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2024-11-07 23:05:14,601 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=774, Unknown=1, NotChecked=0, Total=870 [2024-11-07 23:05:14,602 INFO L87 Difference]: Start difference. First operand 3174 states and 4364 transitions. Second operand has 24 states, 24 states have (on average 10.458333333333334) internal successors, (251), 22 states have internal predecessors, (251), 4 states have call successors, (10), 4 states have call predecessors, (10), 3 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) [2024-11-07 23:05:17,514 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 23:05:17,515 INFO L93 Difference]: Finished difference Result 7879 states and 10886 transitions. [2024-11-07 23:05:17,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2024-11-07 23:05:17,515 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 10.458333333333334) internal successors, (251), 22 states have internal predecessors, (251), 4 states have call successors, (10), 4 states have call predecessors, (10), 3 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) Word has length 153 [2024-11-07 23:05:17,515 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 23:05:17,531 INFO L225 Difference]: With dead ends: 7879 [2024-11-07 23:05:17,531 INFO L226 Difference]: Without dead ends: 4827 [2024-11-07 23:05:17,538 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 249 GetRequests, 177 SyntacticMatches, 7 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 832 ImplicationChecksByTransitivity, 11.1s TimeCoverageRelationStatistics Valid=441, Invalid=3980, Unknown=1, NotChecked=0, Total=4422 [2024-11-07 23:05:17,539 INFO L432 NwaCegarLoop]: 730 mSDtfsCounter, 1399 mSDsluCounter, 7331 mSDsCounter, 0 mSdLazyCounter, 1364 mSolverCounterSat, 123 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1417 SdHoareTripleChecker+Valid, 8061 SdHoareTripleChecker+Invalid, 1487 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 123 IncrementalHoareTripleChecker+Valid, 1364 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-07 23:05:17,539 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1417 Valid, 8061 Invalid, 1487 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [123 Valid, 1364 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-07 23:05:17,542 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4827 states. [2024-11-07 23:05:17,658 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4827 to 3894. [2024-11-07 23:05:17,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3894 states, 3723 states have (on average 1.3865162503357507) internal successors, (5162), 3739 states have internal predecessors, (5162), 110 states have call successors, (110), 55 states have call predecessors, (110), 49 states have return successors, (117), 99 states have call predecessors, (117), 110 states have call successors, (117) [2024-11-07 23:05:17,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3894 states to 3894 states and 5389 transitions. [2024-11-07 23:05:17,671 INFO L78 Accepts]: Start accepts. Automaton has 3894 states and 5389 transitions. Word has length 153 [2024-11-07 23:05:17,671 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 23:05:17,671 INFO L471 AbstractCegarLoop]: Abstraction has 3894 states and 5389 transitions. [2024-11-07 23:05:17,671 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 10.458333333333334) internal successors, (251), 22 states have internal predecessors, (251), 4 states have call successors, (10), 4 states have call predecessors, (10), 3 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) [2024-11-07 23:05:17,672 INFO L276 IsEmpty]: Start isEmpty. Operand 3894 states and 5389 transitions. [2024-11-07 23:05:17,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2024-11-07 23:05:17,673 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 23:05:17,673 INFO L215 NwaCegarLoop]: trace histogram [16, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 23:05:17,695 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2024-11-07 23:05:17,874 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2024-11-07 23:05:17,875 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-07 23:05:17,875 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 23:05:17,875 INFO L85 PathProgramCache]: Analyzing trace with hash 1740629502, now seen corresponding path program 1 times [2024-11-07 23:05:17,875 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 23:05:17,875 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1203244921] [2024-11-07 23:05:17,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:05:17,875 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 23:05:17,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:05:18,386 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-07 23:05:18,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:05:18,397 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-07 23:05:18,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:05:18,412 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-11-07 23:05:18,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:05:18,437 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-07 23:05:18,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:05:18,469 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-11-07 23:05:18,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:05:18,483 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2024-11-07 23:05:18,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:05:18,500 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2024-11-07 23:05:18,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:05:18,504 INFO L134 CoverageAnalysis]: Checked inductivity of 210 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 198 trivial. 0 not checked. [2024-11-07 23:05:18,505 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 23:05:18,505 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1203244921] [2024-11-07 23:05:18,505 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1203244921] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 23:05:18,505 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1459031984] [2024-11-07 23:05:18,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:05:18,505 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 23:05:18,505 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 23:05:18,507 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-07 23:05:18,509 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2024-11-07 23:05:19,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:05:19,067 INFO L255 TraceCheckSpWp]: Trace formula consists of 1194 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-07 23:05:19,070 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 23:05:19,195 INFO L134 CoverageAnalysis]: Checked inductivity of 210 backedges. 116 proven. 6 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2024-11-07 23:05:19,195 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 23:05:19,428 INFO L134 CoverageAnalysis]: Checked inductivity of 210 backedges. 8 proven. 13 refuted. 0 times theorem prover too weak. 189 trivial. 0 not checked. [2024-11-07 23:05:19,429 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1459031984] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 23:05:19,429 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 23:05:19,429 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7, 10] total 19 [2024-11-07 23:05:19,429 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [255057040] [2024-11-07 23:05:19,429 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 23:05:19,429 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-11-07 23:05:19,430 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 23:05:19,430 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-11-07 23:05:19,430 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=290, Unknown=0, NotChecked=0, Total=380 [2024-11-07 23:05:19,430 INFO L87 Difference]: Start difference. First operand 3894 states and 5389 transitions. Second operand has 20 states, 19 states have (on average 10.157894736842104) internal successors, (193), 15 states have internal predecessors, (193), 7 states have call successors, (22), 10 states have call predecessors, (22), 8 states have return successors, (18), 6 states have call predecessors, (18), 7 states have call successors, (18) [2024-11-07 23:05:20,842 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 23:05:20,842 INFO L93 Difference]: Finished difference Result 10505 states and 14854 transitions. [2024-11-07 23:05:20,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2024-11-07 23:05:20,843 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 19 states have (on average 10.157894736842104) internal successors, (193), 15 states have internal predecessors, (193), 7 states have call successors, (22), 10 states have call predecessors, (22), 8 states have return successors, (18), 6 states have call predecessors, (18), 7 states have call successors, (18) Word has length 167 [2024-11-07 23:05:20,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 23:05:20,863 INFO L225 Difference]: With dead ends: 10505 [2024-11-07 23:05:20,863 INFO L226 Difference]: Without dead ends: 8348 [2024-11-07 23:05:20,869 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 381 GetRequests, 342 SyntacticMatches, 1 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 295 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=455, Invalid=1105, Unknown=0, NotChecked=0, Total=1560 [2024-11-07 23:05:20,871 INFO L432 NwaCegarLoop]: 1191 mSDtfsCounter, 4292 mSDsluCounter, 10303 mSDsCounter, 0 mSdLazyCounter, 1049 mSolverCounterSat, 195 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4309 SdHoareTripleChecker+Valid, 11494 SdHoareTripleChecker+Invalid, 1244 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 195 IncrementalHoareTripleChecker+Valid, 1049 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-07 23:05:20,871 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4309 Valid, 11494 Invalid, 1244 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [195 Valid, 1049 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-07 23:05:20,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8348 states. [2024-11-07 23:05:21,032 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8348 to 5509. [2024-11-07 23:05:21,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5509 states, 5306 states have (on average 1.4067093856012063) internal successors, (7464), 5326 states have internal predecessors, (7464), 140 states have call successors, (140), 59 states have call predecessors, (140), 52 states have return successors, (141), 123 states have call predecessors, (141), 140 states have call successors, (141) [2024-11-07 23:05:21,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5509 states to 5509 states and 7745 transitions. [2024-11-07 23:05:21,054 INFO L78 Accepts]: Start accepts. Automaton has 5509 states and 7745 transitions. Word has length 167 [2024-11-07 23:05:21,054 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 23:05:21,054 INFO L471 AbstractCegarLoop]: Abstraction has 5509 states and 7745 transitions. [2024-11-07 23:05:21,054 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 19 states have (on average 10.157894736842104) internal successors, (193), 15 states have internal predecessors, (193), 7 states have call successors, (22), 10 states have call predecessors, (22), 8 states have return successors, (18), 6 states have call predecessors, (18), 7 states have call successors, (18) [2024-11-07 23:05:21,054 INFO L276 IsEmpty]: Start isEmpty. Operand 5509 states and 7745 transitions. [2024-11-07 23:05:21,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 217 [2024-11-07 23:05:21,057 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 23:05:21,057 INFO L215 NwaCegarLoop]: trace histogram [16, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 23:05:21,078 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2024-11-07 23:05:21,258 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2024-11-07 23:05:21,259 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-07 23:05:21,259 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 23:05:21,259 INFO L85 PathProgramCache]: Analyzing trace with hash -888936262, now seen corresponding path program 1 times [2024-11-07 23:05:21,259 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 23:05:21,259 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [883280270] [2024-11-07 23:05:21,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:05:21,260 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 23:05:21,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:05:21,547 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-07 23:05:21,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:05:21,554 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-07 23:05:21,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:05:21,569 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-11-07 23:05:21,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:05:21,595 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-07 23:05:21,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:05:21,601 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-11-07 23:05:21,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:05:21,614 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2024-11-07 23:05:21,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:05:21,616 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2024-11-07 23:05:21,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:05:21,617 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2024-11-07 23:05:21,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:05:21,629 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2024-11-07 23:05:21,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:05:21,632 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2024-11-07 23:05:21,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:05:21,635 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2024-11-07 23:05:21,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:05:21,637 INFO L134 CoverageAnalysis]: Checked inductivity of 226 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 218 trivial. 0 not checked. [2024-11-07 23:05:21,638 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 23:05:21,638 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [883280270] [2024-11-07 23:05:21,638 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [883280270] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 23:05:21,638 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 23:05:21,638 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-07 23:05:21,638 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [699632139] [2024-11-07 23:05:21,638 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 23:05:21,638 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-07 23:05:21,639 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 23:05:21,639 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-07 23:05:21,639 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-07 23:05:21,639 INFO L87 Difference]: Start difference. First operand 5509 states and 7745 transitions. Second operand has 9 states, 9 states have (on average 15.666666666666666) internal successors, (141), 6 states have internal predecessors, (141), 3 states have call successors, (11), 5 states have call predecessors, (11), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2024-11-07 23:05:22,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 23:05:22,372 INFO L93 Difference]: Finished difference Result 6987 states and 9865 transitions. [2024-11-07 23:05:22,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-07 23:05:22,373 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 15.666666666666666) internal successors, (141), 6 states have internal predecessors, (141), 3 states have call successors, (11), 5 states have call predecessors, (11), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) Word has length 216 [2024-11-07 23:05:22,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 23:05:22,382 INFO L225 Difference]: With dead ends: 6987 [2024-11-07 23:05:22,383 INFO L226 Difference]: Without dead ends: 2448 [2024-11-07 23:05:22,387 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=51, Invalid=159, Unknown=0, NotChecked=0, Total=210 [2024-11-07 23:05:22,388 INFO L432 NwaCegarLoop]: 631 mSDtfsCounter, 1941 mSDsluCounter, 2319 mSDsCounter, 0 mSdLazyCounter, 561 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1942 SdHoareTripleChecker+Valid, 2950 SdHoareTripleChecker+Invalid, 624 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 561 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-07 23:05:22,389 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1942 Valid, 2950 Invalid, 624 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 561 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-07 23:05:22,391 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2448 states. [2024-11-07 23:05:22,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2448 to 2439. [2024-11-07 23:05:22,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2439 states, 2361 states have (on average 1.395171537484117) internal successors, (3294), 2371 states have internal predecessors, (3294), 46 states have call successors, (46), 25 states have call predecessors, (46), 23 states have return successors, (46), 42 states have call predecessors, (46), 46 states have call successors, (46) [2024-11-07 23:05:22,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2439 states to 2439 states and 3386 transitions. [2024-11-07 23:05:22,486 INFO L78 Accepts]: Start accepts. Automaton has 2439 states and 3386 transitions. Word has length 216 [2024-11-07 23:05:22,486 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 23:05:22,486 INFO L471 AbstractCegarLoop]: Abstraction has 2439 states and 3386 transitions. [2024-11-07 23:05:22,487 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 15.666666666666666) internal successors, (141), 6 states have internal predecessors, (141), 3 states have call successors, (11), 5 states have call predecessors, (11), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2024-11-07 23:05:22,487 INFO L276 IsEmpty]: Start isEmpty. Operand 2439 states and 3386 transitions. [2024-11-07 23:05:22,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 216 [2024-11-07 23:05:22,489 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 23:05:22,490 INFO L215 NwaCegarLoop]: trace histogram [16, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 23:05:22,490 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-11-07 23:05:22,490 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-07 23:05:22,490 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 23:05:22,490 INFO L85 PathProgramCache]: Analyzing trace with hash 1443584986, now seen corresponding path program 1 times [2024-11-07 23:05:22,490 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 23:05:22,491 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1010462729] [2024-11-07 23:05:22,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:05:22,491 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 23:05:22,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:05:22,669 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-07 23:05:22,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:05:22,675 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-07 23:05:22,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:05:22,686 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-11-07 23:05:22,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:05:22,703 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-07 23:05:22,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:05:22,708 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-11-07 23:05:22,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:05:22,718 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 168 trivial. 0 not checked. [2024-11-07 23:05:22,718 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 23:05:22,719 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1010462729] [2024-11-07 23:05:22,719 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1010462729] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 23:05:22,719 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 23:05:22,719 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-07 23:05:22,719 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [318424086] [2024-11-07 23:05:22,719 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 23:05:22,720 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-07 23:05:22,720 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 23:05:22,720 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-07 23:05:22,720 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-07 23:05:22,721 INFO L87 Difference]: Start difference. First operand 2439 states and 3386 transitions. Second operand has 5 states, 5 states have (on average 35.6) internal successors, (178), 3 states have internal predecessors, (178), 1 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-07 23:05:23,153 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 23:05:23,153 INFO L93 Difference]: Finished difference Result 3178 states and 4422 transitions. [2024-11-07 23:05:23,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-07 23:05:23,154 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 35.6) internal successors, (178), 3 states have internal predecessors, (178), 1 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 215 [2024-11-07 23:05:23,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 23:05:23,162 INFO L225 Difference]: With dead ends: 3178 [2024-11-07 23:05:23,162 INFO L226 Difference]: Without dead ends: 1543 [2024-11-07 23:05:23,164 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-07 23:05:23,165 INFO L432 NwaCegarLoop]: 564 mSDtfsCounter, 56 mSDsluCounter, 1507 mSDsCounter, 0 mSdLazyCounter, 221 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 2071 SdHoareTripleChecker+Invalid, 250 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 221 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-07 23:05:23,165 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [57 Valid, 2071 Invalid, 250 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 221 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-07 23:05:23,166 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1543 states. [2024-11-07 23:05:23,221 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1543 to 1543. [2024-11-07 23:05:23,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1543 states, 1481 states have (on average 1.3416610398379474) internal successors, (1987), 1490 states have internal predecessors, (1987), 31 states have call successors, (31), 24 states have call predecessors, (31), 22 states have return successors, (31), 28 states have call predecessors, (31), 31 states have call successors, (31) [2024-11-07 23:05:23,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1543 states to 1543 states and 2049 transitions. [2024-11-07 23:05:23,227 INFO L78 Accepts]: Start accepts. Automaton has 1543 states and 2049 transitions. Word has length 215 [2024-11-07 23:05:23,228 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 23:05:23,228 INFO L471 AbstractCegarLoop]: Abstraction has 1543 states and 2049 transitions. [2024-11-07 23:05:23,228 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 35.6) internal successors, (178), 3 states have internal predecessors, (178), 1 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-07 23:05:23,228 INFO L276 IsEmpty]: Start isEmpty. Operand 1543 states and 2049 transitions. [2024-11-07 23:05:23,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2024-11-07 23:05:23,231 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 23:05:23,231 INFO L215 NwaCegarLoop]: trace histogram [16, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 23:05:23,231 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-11-07 23:05:23,231 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-07 23:05:23,231 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 23:05:23,232 INFO L85 PathProgramCache]: Analyzing trace with hash -90223248, now seen corresponding path program 1 times [2024-11-07 23:05:23,232 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 23:05:23,232 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2037207976] [2024-11-07 23:05:23,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:05:23,232 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 23:05:23,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:05:23,450 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-07 23:05:23,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:05:23,457 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-07 23:05:23,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:05:23,467 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-11-07 23:05:23,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:05:23,490 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-07 23:05:23,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:05:23,496 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-11-07 23:05:23,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:05:23,508 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 168 trivial. 0 not checked. [2024-11-07 23:05:23,508 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 23:05:23,509 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2037207976] [2024-11-07 23:05:23,509 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2037207976] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 23:05:23,509 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 23:05:23,509 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-07 23:05:23,509 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [831001359] [2024-11-07 23:05:23,509 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 23:05:23,509 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-07 23:05:23,510 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 23:05:23,510 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-07 23:05:23,511 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-07 23:05:23,511 INFO L87 Difference]: Start difference. First operand 1543 states and 2049 transitions. Second operand has 5 states, 4 states have (on average 45.0) internal successors, (180), 3 states have internal predecessors, (180), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-07 23:05:23,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 23:05:23,903 INFO L93 Difference]: Finished difference Result 1703 states and 2283 transitions. [2024-11-07 23:05:23,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-07 23:05:23,903 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 45.0) internal successors, (180), 3 states have internal predecessors, (180), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 217 [2024-11-07 23:05:23,904 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 23:05:23,908 INFO L225 Difference]: With dead ends: 1703 [2024-11-07 23:05:23,908 INFO L226 Difference]: Without dead ends: 1701 [2024-11-07 23:05:23,909 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2024-11-07 23:05:23,909 INFO L432 NwaCegarLoop]: 559 mSDtfsCounter, 344 mSDsluCounter, 1301 mSDsCounter, 0 mSdLazyCounter, 195 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 347 SdHoareTripleChecker+Valid, 1860 SdHoareTripleChecker+Invalid, 225 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 195 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-07 23:05:23,909 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [347 Valid, 1860 Invalid, 225 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 195 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-07 23:05:23,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1701 states. [2024-11-07 23:05:23,973 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1701 to 1701. [2024-11-07 23:05:23,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1701 states, 1639 states have (on average 1.352654057352044) internal successors, (2217), 1648 states have internal predecessors, (2217), 31 states have call successors, (31), 24 states have call predecessors, (31), 22 states have return successors, (31), 28 states have call predecessors, (31), 31 states have call successors, (31) [2024-11-07 23:05:23,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1701 states to 1701 states and 2279 transitions. [2024-11-07 23:05:23,979 INFO L78 Accepts]: Start accepts. Automaton has 1701 states and 2279 transitions. Word has length 217 [2024-11-07 23:05:23,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 23:05:23,980 INFO L471 AbstractCegarLoop]: Abstraction has 1701 states and 2279 transitions. [2024-11-07 23:05:23,980 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 45.0) internal successors, (180), 3 states have internal predecessors, (180), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-07 23:05:23,980 INFO L276 IsEmpty]: Start isEmpty. Operand 1701 states and 2279 transitions. [2024-11-07 23:05:23,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 229 [2024-11-07 23:05:23,982 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 23:05:23,982 INFO L215 NwaCegarLoop]: trace histogram [16, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 23:05:23,982 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-11-07 23:05:23,983 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-07 23:05:23,983 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 23:05:23,983 INFO L85 PathProgramCache]: Analyzing trace with hash 534298100, now seen corresponding path program 1 times [2024-11-07 23:05:23,983 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 23:05:23,983 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [523035985] [2024-11-07 23:05:23,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:05:23,983 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 23:05:24,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:05:24,205 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-07 23:05:24,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:05:24,212 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-07 23:05:24,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:05:24,224 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-11-07 23:05:24,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:05:24,248 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-07 23:05:24,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:05:24,254 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-11-07 23:05:24,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:05:24,266 INFO L134 CoverageAnalysis]: Checked inductivity of 172 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 168 trivial. 0 not checked. [2024-11-07 23:05:24,266 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 23:05:24,266 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [523035985] [2024-11-07 23:05:24,267 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [523035985] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 23:05:24,267 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1055750392] [2024-11-07 23:05:24,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:05:24,267 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 23:05:24,267 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 23:05:24,269 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-07 23:05:24,271 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2024-11-07 23:05:24,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:05:24,922 INFO L255 TraceCheckSpWp]: Trace formula consists of 1304 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-07 23:05:24,925 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 23:05:24,940 INFO L134 CoverageAnalysis]: Checked inductivity of 172 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 172 trivial. 0 not checked. [2024-11-07 23:05:24,940 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-07 23:05:24,940 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1055750392] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 23:05:24,941 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-07 23:05:24,941 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2024-11-07 23:05:24,941 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1306677942] [2024-11-07 23:05:24,941 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 23:05:24,941 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 23:05:24,941 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 23:05:24,941 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 23:05:24,942 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-07 23:05:24,942 INFO L87 Difference]: Start difference. First operand 1701 states and 2279 transitions. Second operand has 3 states, 3 states have (on average 62.666666666666664) internal successors, (188), 3 states have internal predecessors, (188), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-07 23:05:25,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 23:05:25,066 INFO L93 Difference]: Finished difference Result 2546 states and 3462 transitions. [2024-11-07 23:05:25,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 23:05:25,066 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 62.666666666666664) internal successors, (188), 3 states have internal predecessors, (188), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 228 [2024-11-07 23:05:25,067 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 23:05:25,073 INFO L225 Difference]: With dead ends: 2546 [2024-11-07 23:05:25,073 INFO L226 Difference]: Without dead ends: 1781 [2024-11-07 23:05:25,075 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 239 GetRequests, 234 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-07 23:05:25,075 INFO L432 NwaCegarLoop]: 570 mSDtfsCounter, 8 mSDsluCounter, 555 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 1125 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-07 23:05:25,075 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 1125 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-07 23:05:25,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1781 states. [2024-11-07 23:05:25,162 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1781 to 1781. [2024-11-07 23:05:25,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1781 states, 1719 states have (on average 1.336242001163467) internal successors, (2297), 1728 states have internal predecessors, (2297), 31 states have call successors, (31), 24 states have call predecessors, (31), 22 states have return successors, (31), 28 states have call predecessors, (31), 31 states have call successors, (31) [2024-11-07 23:05:25,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1781 states to 1781 states and 2359 transitions. [2024-11-07 23:05:25,169 INFO L78 Accepts]: Start accepts. Automaton has 1781 states and 2359 transitions. Word has length 228 [2024-11-07 23:05:25,170 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 23:05:25,170 INFO L471 AbstractCegarLoop]: Abstraction has 1781 states and 2359 transitions. [2024-11-07 23:05:25,170 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 62.666666666666664) internal successors, (188), 3 states have internal predecessors, (188), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-07 23:05:25,170 INFO L276 IsEmpty]: Start isEmpty. Operand 1781 states and 2359 transitions. [2024-11-07 23:05:25,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 229 [2024-11-07 23:05:25,172 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 23:05:25,172 INFO L215 NwaCegarLoop]: trace histogram [16, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 23:05:25,194 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2024-11-07 23:05:25,373 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2024-11-07 23:05:25,374 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-07 23:05:25,374 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 23:05:25,374 INFO L85 PathProgramCache]: Analyzing trace with hash 1750451826, now seen corresponding path program 1 times [2024-11-07 23:05:25,374 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 23:05:25,374 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1829868184] [2024-11-07 23:05:25,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:05:25,375 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 23:05:25,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:05:25,589 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-07 23:05:25,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:05:25,594 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-07 23:05:25,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:05:25,603 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-11-07 23:05:25,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:05:25,622 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-07 23:05:25,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:05:25,627 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-11-07 23:05:25,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:05:25,639 INFO L134 CoverageAnalysis]: Checked inductivity of 172 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 168 trivial. 0 not checked. [2024-11-07 23:05:25,639 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 23:05:25,639 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1829868184] [2024-11-07 23:05:25,639 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1829868184] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 23:05:25,640 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [788186678] [2024-11-07 23:05:25,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:05:25,640 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 23:05:25,640 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 23:05:25,642 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-07 23:05:25,644 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2024-11-07 23:05:26,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:05:26,302 INFO L255 TraceCheckSpWp]: Trace formula consists of 1308 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-07 23:05:26,306 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 23:05:26,324 INFO L134 CoverageAnalysis]: Checked inductivity of 172 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 172 trivial. 0 not checked. [2024-11-07 23:05:26,324 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-07 23:05:26,324 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [788186678] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 23:05:26,324 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-07 23:05:26,325 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 8 [2024-11-07 23:05:26,325 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [376996395] [2024-11-07 23:05:26,325 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 23:05:26,325 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-07 23:05:26,325 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 23:05:26,325 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-07 23:05:26,326 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-07 23:05:26,326 INFO L87 Difference]: Start difference. First operand 1781 states and 2359 transitions. Second operand has 4 states, 4 states have (on average 47.0) internal successors, (188), 4 states have internal predecessors, (188), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-07 23:05:26,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 23:05:26,430 INFO L93 Difference]: Finished difference Result 2534 states and 3392 transitions. [2024-11-07 23:05:26,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-07 23:05:26,430 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 47.0) internal successors, (188), 4 states have internal predecessors, (188), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 228 [2024-11-07 23:05:26,430 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 23:05:26,435 INFO L225 Difference]: With dead ends: 2534 [2024-11-07 23:05:26,435 INFO L226 Difference]: Without dead ends: 1725 [2024-11-07 23:05:26,436 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 240 GetRequests, 233 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-07 23:05:26,437 INFO L432 NwaCegarLoop]: 562 mSDtfsCounter, 105 mSDsluCounter, 1031 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 105 SdHoareTripleChecker+Valid, 1593 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-07 23:05:26,437 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [105 Valid, 1593 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-07 23:05:26,438 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1725 states. [2024-11-07 23:05:26,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1725 to 1725. [2024-11-07 23:05:26,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1725 states, 1663 states have (on average 1.3307276007215876) internal successors, (2213), 1672 states have internal predecessors, (2213), 31 states have call successors, (31), 24 states have call predecessors, (31), 22 states have return successors, (31), 28 states have call predecessors, (31), 31 states have call successors, (31) [2024-11-07 23:05:26,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1725 states to 1725 states and 2275 transitions. [2024-11-07 23:05:26,507 INFO L78 Accepts]: Start accepts. Automaton has 1725 states and 2275 transitions. Word has length 228 [2024-11-07 23:05:26,507 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 23:05:26,507 INFO L471 AbstractCegarLoop]: Abstraction has 1725 states and 2275 transitions. [2024-11-07 23:05:26,508 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 47.0) internal successors, (188), 4 states have internal predecessors, (188), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-07 23:05:26,508 INFO L276 IsEmpty]: Start isEmpty. Operand 1725 states and 2275 transitions. [2024-11-07 23:05:26,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 229 [2024-11-07 23:05:26,510 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 23:05:26,510 INFO L215 NwaCegarLoop]: trace histogram [16, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 23:05:26,532 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2024-11-07 23:05:26,710 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,18 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 23:05:26,711 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-07 23:05:26,711 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 23:05:26,711 INFO L85 PathProgramCache]: Analyzing trace with hash -506980736, now seen corresponding path program 1 times [2024-11-07 23:05:26,711 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 23:05:26,711 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [901512288] [2024-11-07 23:05:26,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:05:26,711 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 23:05:26,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:05:26,970 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-07 23:05:26,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:05:26,977 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-07 23:05:26,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:05:26,988 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-11-07 23:05:26,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:05:27,011 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-07 23:05:27,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:05:27,016 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-11-07 23:05:27,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:05:27,029 INFO L134 CoverageAnalysis]: Checked inductivity of 172 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 168 trivial. 0 not checked. [2024-11-07 23:05:27,029 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 23:05:27,029 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [901512288] [2024-11-07 23:05:27,029 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [901512288] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 23:05:27,029 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1732038004] [2024-11-07 23:05:27,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:05:27,030 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 23:05:27,030 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 23:05:27,032 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-07 23:05:27,034 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2024-11-07 23:05:27,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:05:27,730 INFO L255 TraceCheckSpWp]: Trace formula consists of 1280 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-07 23:05:27,733 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 23:05:27,926 INFO L134 CoverageAnalysis]: Checked inductivity of 172 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 168 trivial. 0 not checked. [2024-11-07 23:05:27,926 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-07 23:05:27,926 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1732038004] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 23:05:27,926 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-07 23:05:27,926 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2024-11-07 23:05:27,926 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1463426225] [2024-11-07 23:05:27,926 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 23:05:27,927 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-07 23:05:27,927 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 23:05:27,927 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-07 23:05:27,927 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-07 23:05:27,927 INFO L87 Difference]: Start difference. First operand 1725 states and 2275 transitions. Second operand has 4 states, 3 states have (on average 63.666666666666664) internal successors, (191), 3 states have internal predecessors, (191), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-07 23:05:28,020 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 23:05:28,020 INFO L93 Difference]: Finished difference Result 1725 states and 2275 transitions. [2024-11-07 23:05:28,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-07 23:05:28,021 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 63.666666666666664) internal successors, (191), 3 states have internal predecessors, (191), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 228 [2024-11-07 23:05:28,021 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 23:05:28,025 INFO L225 Difference]: With dead ends: 1725 [2024-11-07 23:05:28,025 INFO L226 Difference]: Without dead ends: 1724 [2024-11-07 23:05:28,026 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 239 GetRequests, 234 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-07 23:05:28,026 INFO L432 NwaCegarLoop]: 797 mSDtfsCounter, 709 mSDsluCounter, 440 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 709 SdHoareTripleChecker+Valid, 1237 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 23:05:28,026 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [709 Valid, 1237 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 23:05:28,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1724 states. [2024-11-07 23:05:28,081 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1724 to 1724. [2024-11-07 23:05:28,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1724 states, 1663 states have (on average 1.3289236319903788) internal successors, (2210), 1671 states have internal predecessors, (2210), 31 states have call successors, (31), 24 states have call predecessors, (31), 22 states have return successors, (31), 28 states have call predecessors, (31), 31 states have call successors, (31) [2024-11-07 23:05:28,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1724 states to 1724 states and 2272 transitions. [2024-11-07 23:05:28,086 INFO L78 Accepts]: Start accepts. Automaton has 1724 states and 2272 transitions. Word has length 228 [2024-11-07 23:05:28,086 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 23:05:28,086 INFO L471 AbstractCegarLoop]: Abstraction has 1724 states and 2272 transitions. [2024-11-07 23:05:28,086 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 63.666666666666664) internal successors, (191), 3 states have internal predecessors, (191), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-07 23:05:28,086 INFO L276 IsEmpty]: Start isEmpty. Operand 1724 states and 2272 transitions. [2024-11-07 23:05:28,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 230 [2024-11-07 23:05:28,088 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 23:05:28,088 INFO L215 NwaCegarLoop]: trace histogram [16, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 23:05:28,112 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Ended with exit code 0 [2024-11-07 23:05:28,289 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30,19 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 23:05:28,289 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-07 23:05:28,289 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 23:05:28,289 INFO L85 PathProgramCache]: Analyzing trace with hash 1463467763, now seen corresponding path program 1 times [2024-11-07 23:05:28,289 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 23:05:28,289 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [93140103] [2024-11-07 23:05:28,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:05:28,290 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 23:05:28,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:05:28,472 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-07 23:05:28,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:05:28,477 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-07 23:05:28,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:05:28,485 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-11-07 23:05:28,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:05:28,502 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-07 23:05:28,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:05:28,506 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-11-07 23:05:28,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:05:28,520 INFO L134 CoverageAnalysis]: Checked inductivity of 173 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 168 trivial. 0 not checked. [2024-11-07 23:05:28,520 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 23:05:28,520 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [93140103] [2024-11-07 23:05:28,520 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [93140103] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 23:05:28,520 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [452168336] [2024-11-07 23:05:28,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:05:28,520 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 23:05:28,521 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 23:05:28,525 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-07 23:05:28,527 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2024-11-07 23:05:29,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:05:29,231 INFO L255 TraceCheckSpWp]: Trace formula consists of 1281 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-07 23:05:29,234 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 23:05:29,472 INFO L134 CoverageAnalysis]: Checked inductivity of 173 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 168 trivial. 0 not checked. [2024-11-07 23:05:29,472 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 23:05:29,674 INFO L134 CoverageAnalysis]: Checked inductivity of 173 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 168 trivial. 0 not checked. [2024-11-07 23:05:29,674 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [452168336] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 23:05:29,674 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 23:05:29,674 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 2, 3] total 8 [2024-11-07 23:05:29,674 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [198512810] [2024-11-07 23:05:29,675 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 23:05:29,675 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-07 23:05:29,675 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 23:05:29,676 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-07 23:05:29,676 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2024-11-07 23:05:29,676 INFO L87 Difference]: Start difference. First operand 1724 states and 2272 transitions. Second operand has 9 states, 8 states have (on average 68.75) internal successors, (550), 7 states have internal predecessors, (550), 4 states have call successors, (14), 4 states have call predecessors, (14), 2 states have return successors, (14), 4 states have call predecessors, (14), 4 states have call successors, (14) [2024-11-07 23:05:30,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 23:05:30,421 INFO L93 Difference]: Finished difference Result 3490 states and 4641 transitions. [2024-11-07 23:05:30,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-07 23:05:30,422 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 68.75) internal successors, (550), 7 states have internal predecessors, (550), 4 states have call successors, (14), 4 states have call predecessors, (14), 2 states have return successors, (14), 4 states have call predecessors, (14), 4 states have call successors, (14) Word has length 229 [2024-11-07 23:05:30,423 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 23:05:30,431 INFO L225 Difference]: With dead ends: 3490 [2024-11-07 23:05:30,431 INFO L226 Difference]: Without dead ends: 3489 [2024-11-07 23:05:30,432 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 484 GetRequests, 467 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=114, Invalid=228, Unknown=0, NotChecked=0, Total=342 [2024-11-07 23:05:30,433 INFO L432 NwaCegarLoop]: 550 mSDtfsCounter, 2328 mSDsluCounter, 2546 mSDsCounter, 0 mSdLazyCounter, 299 mSolverCounterSat, 112 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2352 SdHoareTripleChecker+Valid, 3096 SdHoareTripleChecker+Invalid, 411 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 112 IncrementalHoareTripleChecker+Valid, 299 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-07 23:05:30,433 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2352 Valid, 3096 Invalid, 411 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [112 Valid, 299 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-07 23:05:30,437 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3489 states. [2024-11-07 23:05:30,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3489 to 2934. [2024-11-07 23:05:30,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2934 states, 2873 states have (on average 1.353637312913331) internal successors, (3889), 2881 states have internal predecessors, (3889), 31 states have call successors, (31), 24 states have call predecessors, (31), 22 states have return successors, (31), 28 states have call predecessors, (31), 31 states have call successors, (31) [2024-11-07 23:05:30,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2934 states to 2934 states and 3951 transitions. [2024-11-07 23:05:30,552 INFO L78 Accepts]: Start accepts. Automaton has 2934 states and 3951 transitions. Word has length 229 [2024-11-07 23:05:30,552 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 23:05:30,552 INFO L471 AbstractCegarLoop]: Abstraction has 2934 states and 3951 transitions. [2024-11-07 23:05:30,552 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 68.75) internal successors, (550), 7 states have internal predecessors, (550), 4 states have call successors, (14), 4 states have call predecessors, (14), 2 states have return successors, (14), 4 states have call predecessors, (14), 4 states have call successors, (14) [2024-11-07 23:05:30,552 INFO L276 IsEmpty]: Start isEmpty. Operand 2934 states and 3951 transitions. [2024-11-07 23:05:30,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 230 [2024-11-07 23:05:30,554 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 23:05:30,555 INFO L215 NwaCegarLoop]: trace histogram [16, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 23:05:30,577 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2024-11-07 23:05:30,755 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31,20 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 23:05:30,755 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-07 23:05:30,756 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 23:05:30,756 INFO L85 PathProgramCache]: Analyzing trace with hash 1929007961, now seen corresponding path program 1 times [2024-11-07 23:05:30,756 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 23:05:30,756 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1641997931] [2024-11-07 23:05:30,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:05:30,756 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 23:05:30,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:05:31,482 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-07 23:05:31,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:05:31,488 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-07 23:05:31,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:05:31,501 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-11-07 23:05:31,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:05:31,524 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-07 23:05:31,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:05:31,529 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-11-07 23:05:31,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:05:31,540 INFO L134 CoverageAnalysis]: Checked inductivity of 246 backedges. 0 proven. 80 refuted. 0 times theorem prover too weak. 166 trivial. 0 not checked. [2024-11-07 23:05:31,541 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 23:05:31,541 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1641997931] [2024-11-07 23:05:31,541 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1641997931] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 23:05:31,541 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [522113612] [2024-11-07 23:05:31,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:05:31,541 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 23:05:31,541 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 23:05:31,544 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-07 23:05:31,545 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2024-11-07 23:05:32,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:05:32,308 INFO L255 TraceCheckSpWp]: Trace formula consists of 1394 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-07 23:05:32,311 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 23:05:32,323 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-11-07 23:05:32,419 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 17 treesize of output 9 [2024-11-07 23:05:32,428 INFO L134 CoverageAnalysis]: Checked inductivity of 246 backedges. 80 proven. 0 refuted. 0 times theorem prover too weak. 166 trivial. 0 not checked. [2024-11-07 23:05:32,428 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-07 23:05:32,428 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [522113612] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 23:05:32,428 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-07 23:05:32,428 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [8] total 11 [2024-11-07 23:05:32,429 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [519687692] [2024-11-07 23:05:32,429 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 23:05:32,429 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-07 23:05:32,429 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 23:05:32,429 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-07 23:05:32,429 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2024-11-07 23:05:32,430 INFO L87 Difference]: Start difference. First operand 2934 states and 3951 transitions. Second operand has 5 states, 4 states have (on average 48.25) internal successors, (193), 5 states have internal predecessors, (193), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5)