./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/nla-digbench-scaling/freire1_valuebound20.c --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/nla-digbench-scaling/freire1_valuebound20.c', '-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', 'bff053df41c1fc922299a13f2dac2a98df2d05e146d51bf11ac9e37ddfefad6a'] 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/nla-digbench-scaling/freire1_valuebound20.c -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 bff053df41c1fc922299a13f2dac2a98df2d05e146d51bf11ac9e37ddfefad6a --- Real Ultimate output --- This is Ultimate 0.3.0-?-4f9af40 [2024-11-07 20:28:24,380 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-07 20:28:24,445 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-07 20:28:24,450 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-07 20:28:24,451 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-07 20:28:24,467 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-07 20:28:24,467 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-07 20:28:24,467 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-07 20:28:24,468 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-07 20:28:24,468 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-07 20:28:24,468 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-07 20:28:24,468 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-07 20:28:24,468 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-07 20:28:24,468 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-07 20:28:24,468 INFO L153 SettingsManager]: * Use SBE=true [2024-11-07 20:28:24,468 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-07 20:28:24,468 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-07 20:28:24,468 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-07 20:28:24,468 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-07 20:28:24,468 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-07 20:28:24,468 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-07 20:28:24,468 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-07 20:28:24,468 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-07 20:28:24,468 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-07 20:28:24,469 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-07 20:28:24,469 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-07 20:28:24,469 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-07 20:28:24,469 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-07 20:28:24,469 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-07 20:28:24,469 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-07 20:28:24,469 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-07 20:28:24,469 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-07 20:28:24,469 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-07 20:28:24,469 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-07 20:28:24,469 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-07 20:28:24,470 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-07 20:28:24,470 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-07 20:28:24,470 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-07 20:28:24,470 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-07 20:28:24,470 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-07 20:28:24,470 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-07 20:28:24,470 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-07 20:28:24,470 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-07 20:28:24,470 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-07 20:28:24,470 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 -> bff053df41c1fc922299a13f2dac2a98df2d05e146d51bf11ac9e37ddfefad6a [2024-11-07 20:28:24,696 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-07 20:28:24,705 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-07 20:28:24,706 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-07 20:28:24,707 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-07 20:28:24,707 INFO L274 PluginConnector]: CDTParser initialized [2024-11-07 20:28:24,709 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/nla-digbench-scaling/freire1_valuebound20.c [2024-11-07 20:28:25,809 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-07 20:28:25,993 INFO L384 CDTParser]: Found 1 translation units. [2024-11-07 20:28:25,993 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/nla-digbench-scaling/freire1_valuebound20.c [2024-11-07 20:28:25,997 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/f04a7e1d5/ca281beee9334040ae9513f2833fa250/FLAGbf1b54d86 [2024-11-07 20:28:26,370 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/f04a7e1d5/ca281beee9334040ae9513f2833fa250 [2024-11-07 20:28:26,371 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-07 20:28:26,372 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-07 20:28:26,373 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-07 20:28:26,373 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-07 20:28:26,377 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-07 20:28:26,377 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 08:28:26" (1/1) ... [2024-11-07 20:28:26,378 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@fbb9f96 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:28:26, skipping insertion in model container [2024-11-07 20:28:26,378 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 08:28:26" (1/1) ... [2024-11-07 20:28:26,386 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-07 20:28:26,491 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 20:28:26,497 INFO L200 MainTranslator]: Completed pre-run [2024-11-07 20:28:26,508 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 20:28:26,518 INFO L204 MainTranslator]: Completed translation [2024-11-07 20:28:26,519 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:28:26 WrapperNode [2024-11-07 20:28:26,520 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-07 20:28:26,521 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-07 20:28:26,521 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-07 20:28:26,521 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-07 20:28:26,525 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:28:26" (1/1) ... [2024-11-07 20:28:26,530 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:28:26" (1/1) ... [2024-11-07 20:28:26,542 INFO L138 Inliner]: procedures = 14, calls = 11, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 45 [2024-11-07 20:28:26,543 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-07 20:28:26,543 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-07 20:28:26,543 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-07 20:28:26,543 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-07 20:28:26,548 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:28:26" (1/1) ... [2024-11-07 20:28:26,549 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:28:26" (1/1) ... [2024-11-07 20:28:26,550 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:28:26" (1/1) ... [2024-11-07 20:28:26,560 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-07 20:28:26,563 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:28:26" (1/1) ... [2024-11-07 20:28:26,563 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:28:26" (1/1) ... [2024-11-07 20:28:26,566 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:28:26" (1/1) ... [2024-11-07 20:28:26,569 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:28:26" (1/1) ... [2024-11-07 20:28:26,571 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:28:26" (1/1) ... [2024-11-07 20:28:26,572 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:28:26" (1/1) ... [2024-11-07 20:28:26,572 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-07 20:28:26,573 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-07 20:28:26,576 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-07 20:28:26,576 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-07 20:28:26,577 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:28:26" (1/1) ... [2024-11-07 20:28:26,583 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-07 20:28:26,593 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 20:28:26,603 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 20:28:26,606 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 20:28:26,623 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-07 20:28:26,623 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-07 20:28:26,623 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-07 20:28:26,623 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-07 20:28:26,623 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-07 20:28:26,623 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-07 20:28:26,670 INFO L238 CfgBuilder]: Building ICFG [2024-11-07 20:28:26,671 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-07 20:28:26,761 INFO L? ?]: Removed 11 outVars from TransFormulas that were not future-live. [2024-11-07 20:28:26,761 INFO L287 CfgBuilder]: Performing block encoding [2024-11-07 20:28:26,770 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-07 20:28:26,770 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-07 20:28:26,771 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 08:28:26 BoogieIcfgContainer [2024-11-07 20:28:26,771 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-07 20:28:26,772 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-07 20:28:26,772 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-07 20:28:26,776 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-07 20:28:26,776 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 08:28:26" (1/3) ... [2024-11-07 20:28:26,776 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@47956954 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 08:28:26, skipping insertion in model container [2024-11-07 20:28:26,776 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:28:26" (2/3) ... [2024-11-07 20:28:26,776 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@47956954 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 08:28:26, skipping insertion in model container [2024-11-07 20:28:26,776 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 08:28:26" (3/3) ... [2024-11-07 20:28:26,777 INFO L112 eAbstractionObserver]: Analyzing ICFG freire1_valuebound20.c [2024-11-07 20:28:26,788 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-07 20:28:26,788 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2024-11-07 20:28:26,829 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-07 20:28:26,838 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;@283b5654, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-07 20:28:26,838 INFO L334 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2024-11-07 20:28:26,842 INFO L276 IsEmpty]: Start isEmpty. Operand has 30 states, 20 states have (on average 1.55) internal successors, (31), 26 states have internal predecessors, (31), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-07 20:28:26,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-11-07 20:28:26,846 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 20:28:26,847 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2024-11-07 20:28:26,847 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-07 20:28:26,850 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 20:28:26,851 INFO L85 PathProgramCache]: Analyzing trace with hash 889508859, now seen corresponding path program 1 times [2024-11-07 20:28:26,856 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 20:28:26,856 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [212295540] [2024-11-07 20:28:26,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 20:28:26,857 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 20:28:26,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 20:28:26,943 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 20:28:26,943 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 20:28:26,943 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [212295540] [2024-11-07 20:28:26,943 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [212295540] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 20:28:26,944 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 20:28:26,944 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-07 20:28:26,944 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [147463007] [2024-11-07 20:28:26,945 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 20:28:26,947 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-07 20:28:26,947 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 20:28:26,957 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-07 20:28:26,957 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-07 20:28:26,959 INFO L87 Difference]: Start difference. First operand has 30 states, 20 states have (on average 1.55) internal successors, (31), 26 states have internal predecessors, (31), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 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 20:28:26,972 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 20:28:26,972 INFO L93 Difference]: Finished difference Result 54 states and 67 transitions. [2024-11-07 20:28:26,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-07 20:28:26,973 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 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 6 [2024-11-07 20:28:26,974 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 20:28:26,978 INFO L225 Difference]: With dead ends: 54 [2024-11-07 20:28:26,978 INFO L226 Difference]: Without dead ends: 21 [2024-11-07 20:28:26,980 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 20:28:26,982 INFO L432 NwaCegarLoop]: 28 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, 28 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 20:28:26,982 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 20:28:26,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2024-11-07 20:28:27,007 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2024-11-07 20:28:27,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 15 states have (on average 1.2666666666666666) internal successors, (19), 18 states have internal predecessors, (19), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-07 20:28:27,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 21 transitions. [2024-11-07 20:28:27,011 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 21 transitions. Word has length 6 [2024-11-07 20:28:27,011 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 20:28:27,011 INFO L471 AbstractCegarLoop]: Abstraction has 21 states and 21 transitions. [2024-11-07 20:28:27,011 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 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 20:28:27,011 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 21 transitions. [2024-11-07 20:28:27,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-11-07 20:28:27,011 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 20:28:27,012 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-07 20:28:27,012 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-07 20:28:27,012 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-07 20:28:27,012 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 20:28:27,012 INFO L85 PathProgramCache]: Analyzing trace with hash 1806819342, now seen corresponding path program 1 times [2024-11-07 20:28:27,013 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 20:28:27,013 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [832045998] [2024-11-07 20:28:27,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 20:28:27,013 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 20:28:27,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-07 20:28:27,031 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [234160736] [2024-11-07 20:28:27,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 20:28:27,033 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 20:28:27,033 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 20:28:27,034 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 20:28:27,036 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 20:28:27,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 20:28:27,073 INFO L255 TraceCheckSpWp]: Trace formula consists of 31 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-07 20:28:27,075 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 20:28:27,096 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 20:28:27,097 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-07 20:28:27,097 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 20:28:27,097 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [832045998] [2024-11-07 20:28:27,097 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-07 20:28:27,097 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [234160736] [2024-11-07 20:28:27,097 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [234160736] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 20:28:27,097 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 20:28:27,098 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-07 20:28:27,098 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [252048108] [2024-11-07 20:28:27,098 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 20:28:27,098 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 20:28:27,098 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 20:28:27,099 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 20:28:27,099 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 20:28:27,099 INFO L87 Difference]: Start difference. First operand 21 states and 21 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 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 20:28:27,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 20:28:27,123 INFO L93 Difference]: Finished difference Result 34 states and 35 transitions. [2024-11-07 20:28:27,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 20:28:27,124 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 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 7 [2024-11-07 20:28:27,124 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 20:28:27,124 INFO L225 Difference]: With dead ends: 34 [2024-11-07 20:28:27,124 INFO L226 Difference]: Without dead ends: 28 [2024-11-07 20:28:27,124 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 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 20:28:27,125 INFO L432 NwaCegarLoop]: 16 mSDtfsCounter, 5 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 26 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 20:28:27,125 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 26 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 20:28:27,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2024-11-07 20:28:27,127 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2024-11-07 20:28:27,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 21 states have (on average 1.1904761904761905) internal successors, (25), 24 states have internal predecessors, (25), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-07 20:28:27,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 29 transitions. [2024-11-07 20:28:27,128 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 29 transitions. Word has length 7 [2024-11-07 20:28:27,128 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 20:28:27,128 INFO L471 AbstractCegarLoop]: Abstraction has 28 states and 29 transitions. [2024-11-07 20:28:27,129 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 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 20:28:27,129 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 29 transitions. [2024-11-07 20:28:27,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2024-11-07 20:28:27,129 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 20:28:27,129 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 20:28:27,141 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 20:28:27,330 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 20:28:27,330 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-07 20:28:27,330 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 20:28:27,331 INFO L85 PathProgramCache]: Analyzing trace with hash 888630314, now seen corresponding path program 1 times [2024-11-07 20:28:27,331 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 20:28:27,331 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [569834635] [2024-11-07 20:28:27,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 20:28:27,331 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 20:28:27,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-07 20:28:27,346 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1982602110] [2024-11-07 20:28:27,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 20:28:27,346 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 20:28:27,346 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 20:28:27,348 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 20:28:27,349 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 20:28:27,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 20:28:27,383 INFO L255 TraceCheckSpWp]: Trace formula consists of 48 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-07 20:28:27,384 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 20:28:27,431 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 20:28:27,432 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 20:28:27,501 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 20:28:27,501 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 20:28:27,501 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [569834635] [2024-11-07 20:28:27,501 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-07 20:28:27,501 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1982602110] [2024-11-07 20:28:27,501 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1982602110] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 20:28:27,501 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-07 20:28:27,501 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 5 [2024-11-07 20:28:27,501 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1224408553] [2024-11-07 20:28:27,501 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-07 20:28:27,501 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-07 20:28:27,502 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 20:28:27,502 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-07 20:28:27,502 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-07 20:28:27,502 INFO L87 Difference]: Start difference. First operand 28 states and 29 transitions. Second operand has 6 states, 5 states have (on average 5.2) internal successors, (26), 6 states have internal predecessors, (26), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-07 20:28:27,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 20:28:27,582 INFO L93 Difference]: Finished difference Result 50 states and 61 transitions. [2024-11-07 20:28:27,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-07 20:28:27,582 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.2) internal successors, (26), 6 states have internal predecessors, (26), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 18 [2024-11-07 20:28:27,582 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 20:28:27,583 INFO L225 Difference]: With dead ends: 50 [2024-11-07 20:28:27,583 INFO L226 Difference]: Without dead ends: 40 [2024-11-07 20:28:27,583 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2024-11-07 20:28:27,584 INFO L432 NwaCegarLoop]: 17 mSDtfsCounter, 19 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 41 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-07 20:28:27,584 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 41 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-07 20:28:27,584 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2024-11-07 20:28:27,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 40. [2024-11-07 20:28:27,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40 states, 34 states have (on average 1.0294117647058822) internal successors, (35), 34 states have internal predecessors, (35), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-07 20:28:27,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 43 transitions. [2024-11-07 20:28:27,591 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 43 transitions. Word has length 18 [2024-11-07 20:28:27,592 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 20:28:27,592 INFO L471 AbstractCegarLoop]: Abstraction has 40 states and 43 transitions. [2024-11-07 20:28:27,592 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.2) internal successors, (26), 6 states have internal predecessors, (26), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-07 20:28:27,592 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 43 transitions. [2024-11-07 20:28:27,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2024-11-07 20:28:27,594 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 20:28:27,594 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1] [2024-11-07 20:28:27,606 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-07 20:28:27,798 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 20:28:27,799 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-07 20:28:27,799 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 20:28:27,799 INFO L85 PathProgramCache]: Analyzing trace with hash 860302606, now seen corresponding path program 2 times [2024-11-07 20:28:27,799 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 20:28:27,799 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1658669227] [2024-11-07 20:28:27,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 20:28:27,799 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 20:28:27,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-07 20:28:27,830 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [785528514] [2024-11-07 20:28:27,830 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-07 20:28:27,830 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 20:28:27,831 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 20:28:27,837 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 20:28:27,844 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 20:28:27,895 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-07 20:28:27,895 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-07 20:28:27,897 INFO L255 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-07 20:28:27,898 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 20:28:27,987 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 0 proven. 54 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-07 20:28:27,987 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 20:28:28,181 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 0 proven. 54 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-07 20:28:28,181 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 20:28:28,181 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1658669227] [2024-11-07 20:28:28,181 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-07 20:28:28,181 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [785528514] [2024-11-07 20:28:28,181 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [785528514] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 20:28:28,181 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-07 20:28:28,182 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 11 [2024-11-07 20:28:28,182 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1562275182] [2024-11-07 20:28:28,182 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-07 20:28:28,183 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-07 20:28:28,183 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 20:28:28,183 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-07 20:28:28,184 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2024-11-07 20:28:28,184 INFO L87 Difference]: Start difference. First operand 40 states and 43 transitions. Second operand has 12 states, 11 states have (on average 5.636363636363637) internal successors, (62), 12 states have internal predecessors, (62), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-07 20:28:28,382 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 20:28:28,382 INFO L93 Difference]: Finished difference Result 83 states and 97 transitions. [2024-11-07 20:28:28,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-07 20:28:28,383 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 5.636363636363637) internal successors, (62), 12 states have internal predecessors, (62), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) Word has length 51 [2024-11-07 20:28:28,383 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 20:28:28,384 INFO L225 Difference]: With dead ends: 83 [2024-11-07 20:28:28,385 INFO L226 Difference]: Without dead ends: 82 [2024-11-07 20:28:28,386 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 90 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=94, Invalid=146, Unknown=0, NotChecked=0, Total=240 [2024-11-07 20:28:28,386 INFO L432 NwaCegarLoop]: 28 mSDtfsCounter, 21 mSDsluCounter, 99 mSDsCounter, 0 mSdLazyCounter, 157 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 127 SdHoareTripleChecker+Invalid, 164 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 157 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-07 20:28:28,386 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 127 Invalid, 164 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 157 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-07 20:28:28,386 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2024-11-07 20:28:28,396 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 82. [2024-11-07 20:28:28,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 82 states, 70 states have (on average 1.0142857142857142) internal successors, (71), 70 states have internal predecessors, (71), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-11-07 20:28:28,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 91 transitions. [2024-11-07 20:28:28,400 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 91 transitions. Word has length 51 [2024-11-07 20:28:28,400 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 20:28:28,400 INFO L471 AbstractCegarLoop]: Abstraction has 82 states and 91 transitions. [2024-11-07 20:28:28,400 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 5.636363636363637) internal successors, (62), 12 states have internal predecessors, (62), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-07 20:28:28,400 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 91 transitions. [2024-11-07 20:28:28,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2024-11-07 20:28:28,403 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 20:28:28,403 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1] [2024-11-07 20:28:28,414 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 20:28:28,603 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 20:28:28,604 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-07 20:28:28,604 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 20:28:28,604 INFO L85 PathProgramCache]: Analyzing trace with hash 1105989774, now seen corresponding path program 3 times [2024-11-07 20:28:28,604 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 20:28:28,604 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1376146432] [2024-11-07 20:28:28,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 20:28:28,604 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 20:28:28,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-07 20:28:28,653 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1037311509] [2024-11-07 20:28:28,654 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-07 20:28:28,654 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 20:28:28,654 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 20:28:28,657 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 20:28:28,661 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 20:28:28,760 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2024-11-07 20:28:28,760 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-07 20:28:28,761 INFO L255 TraceCheckSpWp]: Trace formula consists of 201 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-11-07 20:28:28,765 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 20:28:28,926 INFO L134 CoverageAnalysis]: Checked inductivity of 525 backedges. 0 proven. 345 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2024-11-07 20:28:28,926 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 20:28:29,315 INFO L134 CoverageAnalysis]: Checked inductivity of 525 backedges. 0 proven. 345 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2024-11-07 20:28:29,315 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 20:28:29,315 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1376146432] [2024-11-07 20:28:29,315 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-07 20:28:29,316 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1037311509] [2024-11-07 20:28:29,316 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1037311509] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 20:28:29,316 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-07 20:28:29,316 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 23 [2024-11-07 20:28:29,316 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [583512034] [2024-11-07 20:28:29,316 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-07 20:28:29,316 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2024-11-07 20:28:29,316 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 20:28:29,317 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2024-11-07 20:28:29,317 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=166, Invalid=386, Unknown=0, NotChecked=0, Total=552 [2024-11-07 20:28:29,318 INFO L87 Difference]: Start difference. First operand 82 states and 91 transitions. Second operand has 24 states, 23 states have (on average 5.826086956521739) internal successors, (134), 24 states have internal predecessors, (134), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-07 20:28:30,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 20:28:30,007 INFO L93 Difference]: Finished difference Result 167 states and 199 transitions. [2024-11-07 20:28:30,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-11-07 20:28:30,008 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 23 states have (on average 5.826086956521739) internal successors, (134), 24 states have internal predecessors, (134), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) Word has length 117 [2024-11-07 20:28:30,008 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 20:28:30,009 INFO L225 Difference]: With dead ends: 167 [2024-11-07 20:28:30,011 INFO L226 Difference]: Without dead ends: 166 [2024-11-07 20:28:30,012 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 242 GetRequests, 210 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=406, Invalid=716, Unknown=0, NotChecked=0, Total=1122 [2024-11-07 20:28:30,012 INFO L432 NwaCegarLoop]: 52 mSDtfsCounter, 36 mSDsluCounter, 417 mSDsCounter, 0 mSdLazyCounter, 679 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 469 SdHoareTripleChecker+Invalid, 691 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 679 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-07 20:28:30,013 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 469 Invalid, 691 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 679 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-07 20:28:30,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 166 states. [2024-11-07 20:28:30,025 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 166 to 166. [2024-11-07 20:28:30,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 166 states, 142 states have (on average 1.0070422535211268) internal successors, (143), 142 states have internal predecessors, (143), 22 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2024-11-07 20:28:30,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166 states to 166 states and 187 transitions. [2024-11-07 20:28:30,030 INFO L78 Accepts]: Start accepts. Automaton has 166 states and 187 transitions. Word has length 117 [2024-11-07 20:28:30,030 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 20:28:30,032 INFO L471 AbstractCegarLoop]: Abstraction has 166 states and 187 transitions. [2024-11-07 20:28:30,032 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 23 states have (on average 5.826086956521739) internal successors, (134), 24 states have internal predecessors, (134), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-07 20:28:30,032 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states and 187 transitions. [2024-11-07 20:28:30,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 250 [2024-11-07 20:28:30,036 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 20:28:30,036 INFO L215 NwaCegarLoop]: trace histogram [23, 23, 22, 22, 22, 22, 22, 22, 22, 22, 22, 1, 1, 1, 1, 1] [2024-11-07 20:28:30,049 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 20:28:30,239 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 20:28:30,240 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-07 20:28:30,240 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 20:28:30,240 INFO L85 PathProgramCache]: Analyzing trace with hash -1244055666, now seen corresponding path program 4 times [2024-11-07 20:28:30,240 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 20:28:30,241 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1675844221] [2024-11-07 20:28:30,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 20:28:30,241 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 20:28:30,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-07 20:28:30,327 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1847693276] [2024-11-07 20:28:30,328 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-07 20:28:30,328 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 20:28:30,328 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 20:28:30,331 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 20:28:30,332 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 20:28:30,424 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-07 20:28:30,424 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-07 20:28:30,425 INFO L255 TraceCheckSpWp]: Trace formula consists of 405 conjuncts, 47 conjuncts are in the unsatisfiable core [2024-11-07 20:28:30,429 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 20:28:30,808 INFO L134 CoverageAnalysis]: Checked inductivity of 2607 backedges. 0 proven. 1683 refuted. 0 times theorem prover too weak. 924 trivial. 0 not checked. [2024-11-07 20:28:30,808 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 20:28:31,899 INFO L134 CoverageAnalysis]: Checked inductivity of 2607 backedges. 0 proven. 1683 refuted. 0 times theorem prover too weak. 924 trivial. 0 not checked. [2024-11-07 20:28:31,899 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 20:28:31,899 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1675844221] [2024-11-07 20:28:31,899 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-07 20:28:31,899 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1847693276] [2024-11-07 20:28:31,899 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1847693276] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 20:28:31,900 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-07 20:28:31,900 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 24] total 47 [2024-11-07 20:28:31,900 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [322729176] [2024-11-07 20:28:31,900 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-07 20:28:31,901 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 48 states [2024-11-07 20:28:31,901 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 20:28:31,902 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2024-11-07 20:28:31,903 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=622, Invalid=1634, Unknown=0, NotChecked=0, Total=2256 [2024-11-07 20:28:31,904 INFO L87 Difference]: Start difference. First operand 166 states and 187 transitions. Second operand has 48 states, 47 states have (on average 5.914893617021277) internal successors, (278), 48 states have internal predecessors, (278), 44 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 44 states have call predecessors, (44), 44 states have call successors, (44) [2024-11-07 20:28:34,405 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 20:28:34,405 INFO L93 Difference]: Finished difference Result 335 states and 403 transitions. [2024-11-07 20:28:34,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2024-11-07 20:28:34,405 INFO L78 Accepts]: Start accepts. Automaton has has 48 states, 47 states have (on average 5.914893617021277) internal successors, (278), 48 states have internal predecessors, (278), 44 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 44 states have call predecessors, (44), 44 states have call successors, (44) Word has length 249 [2024-11-07 20:28:34,406 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 20:28:34,407 INFO L225 Difference]: With dead ends: 335 [2024-11-07 20:28:34,408 INFO L226 Difference]: Without dead ends: 334 [2024-11-07 20:28:34,410 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 518 GetRequests, 450 SyntacticMatches, 0 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 231 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=1678, Invalid=3152, Unknown=0, NotChecked=0, Total=4830 [2024-11-07 20:28:34,410 INFO L432 NwaCegarLoop]: 100 mSDtfsCounter, 75 mSDsluCounter, 1729 mSDsCounter, 0 mSdLazyCounter, 2805 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 1829 SdHoareTripleChecker+Invalid, 2830 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 2805 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-07 20:28:34,410 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 1829 Invalid, 2830 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 2805 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-07 20:28:34,411 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 334 states. [2024-11-07 20:28:34,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 334 to 334. [2024-11-07 20:28:34,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 334 states, 286 states have (on average 1.0034965034965035) internal successors, (287), 286 states have internal predecessors, (287), 46 states have call successors, (46), 1 states have call predecessors, (46), 1 states have return successors, (46), 46 states have call predecessors, (46), 46 states have call successors, (46) [2024-11-07 20:28:34,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 334 states to 334 states and 379 transitions. [2024-11-07 20:28:34,431 INFO L78 Accepts]: Start accepts. Automaton has 334 states and 379 transitions. Word has length 249 [2024-11-07 20:28:34,432 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 20:28:34,432 INFO L471 AbstractCegarLoop]: Abstraction has 334 states and 379 transitions. [2024-11-07 20:28:34,433 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 48 states, 47 states have (on average 5.914893617021277) internal successors, (278), 48 states have internal predecessors, (278), 44 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 44 states have call predecessors, (44), 44 states have call successors, (44) [2024-11-07 20:28:34,434 INFO L276 IsEmpty]: Start isEmpty. Operand 334 states and 379 transitions. [2024-11-07 20:28:34,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 514 [2024-11-07 20:28:34,441 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 20:28:34,441 INFO L215 NwaCegarLoop]: trace histogram [47, 47, 46, 46, 46, 46, 46, 46, 46, 46, 46, 1, 1, 1, 1, 1] [2024-11-07 20:28:34,453 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 20:28:34,641 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,6 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 20:28:34,641 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-07 20:28:34,642 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 20:28:34,642 INFO L85 PathProgramCache]: Analyzing trace with hash 543229326, now seen corresponding path program 5 times [2024-11-07 20:28:34,642 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 20:28:34,642 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1256486963] [2024-11-07 20:28:34,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 20:28:34,642 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 20:28:34,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-07 20:28:34,751 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [828878233] [2024-11-07 20:28:34,751 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-07 20:28:34,752 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 20:28:34,752 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 20:28:34,753 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 20:28:34,754 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 20:28:34,948 INFO L227 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 47 check-sat command(s) [2024-11-07 20:28:34,948 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-07 20:28:34,953 INFO L255 TraceCheckSpWp]: Trace formula consists of 813 conjuncts, 95 conjuncts are in the unsatisfiable core [2024-11-07 20:28:34,959 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 20:28:35,838 INFO L134 CoverageAnalysis]: Checked inductivity of 11523 backedges. 0 proven. 7383 refuted. 0 times theorem prover too weak. 4140 trivial. 0 not checked. [2024-11-07 20:28:35,838 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 20:28:38,854 INFO L134 CoverageAnalysis]: Checked inductivity of 11523 backedges. 0 proven. 7383 refuted. 0 times theorem prover too weak. 4140 trivial. 0 not checked. [2024-11-07 20:28:38,854 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 20:28:38,854 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1256486963] [2024-11-07 20:28:38,854 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-07 20:28:38,855 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [828878233] [2024-11-07 20:28:38,855 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [828878233] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 20:28:38,855 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-07 20:28:38,855 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [48, 48] total 95 [2024-11-07 20:28:38,855 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1719581739] [2024-11-07 20:28:38,855 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-07 20:28:38,856 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 96 states [2024-11-07 20:28:38,856 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 20:28:38,858 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 96 interpolants. [2024-11-07 20:28:38,859 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2398, Invalid=6722, Unknown=0, NotChecked=0, Total=9120 [2024-11-07 20:28:38,860 INFO L87 Difference]: Start difference. First operand 334 states and 379 transitions. Second operand has 96 states, 95 states have (on average 5.957894736842105) internal successors, (566), 96 states have internal predecessors, (566), 92 states have call successors, (92), 1 states have call predecessors, (92), 1 states have return successors, (92), 92 states have call predecessors, (92), 92 states have call successors, (92) [2024-11-07 20:28:50,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 20:28:50,132 INFO L93 Difference]: Finished difference Result 671 states and 811 transitions. [2024-11-07 20:28:50,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 96 states. [2024-11-07 20:28:50,133 INFO L78 Accepts]: Start accepts. Automaton has has 96 states, 95 states have (on average 5.957894736842105) internal successors, (566), 96 states have internal predecessors, (566), 92 states have call successors, (92), 1 states have call predecessors, (92), 1 states have return successors, (92), 92 states have call predecessors, (92), 92 states have call successors, (92) Word has length 513 [2024-11-07 20:28:50,133 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 20:28:50,136 INFO L225 Difference]: With dead ends: 671 [2024-11-07 20:28:50,136 INFO L226 Difference]: Without dead ends: 670 [2024-11-07 20:28:50,140 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1070 GetRequests, 930 SyntacticMatches, 0 SemanticMatches, 140 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1035 ImplicationChecksByTransitivity, 11.3s TimeCoverageRelationStatistics Valid=6814, Invalid=13208, Unknown=0, NotChecked=0, Total=20022 [2024-11-07 20:28:50,140 INFO L432 NwaCegarLoop]: 196 mSDtfsCounter, 147 mSDsluCounter, 6965 mSDsCounter, 0 mSdLazyCounter, 11375 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 149 SdHoareTripleChecker+Valid, 7161 SdHoareTripleChecker+Invalid, 11424 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 11375 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2024-11-07 20:28:50,140 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [149 Valid, 7161 Invalid, 11424 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 11375 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2024-11-07 20:28:50,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 670 states. [2024-11-07 20:28:50,172 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 670 to 670. [2024-11-07 20:28:50,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 670 states, 574 states have (on average 1.0017421602787457) internal successors, (575), 574 states have internal predecessors, (575), 94 states have call successors, (94), 1 states have call predecessors, (94), 1 states have return successors, (94), 94 states have call predecessors, (94), 94 states have call successors, (94) [2024-11-07 20:28:50,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 670 states to 670 states and 763 transitions. [2024-11-07 20:28:50,176 INFO L78 Accepts]: Start accepts. Automaton has 670 states and 763 transitions. Word has length 513 [2024-11-07 20:28:50,177 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 20:28:50,177 INFO L471 AbstractCegarLoop]: Abstraction has 670 states and 763 transitions. [2024-11-07 20:28:50,178 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 96 states, 95 states have (on average 5.957894736842105) internal successors, (566), 96 states have internal predecessors, (566), 92 states have call successors, (92), 1 states have call predecessors, (92), 1 states have return successors, (92), 92 states have call predecessors, (92), 92 states have call successors, (92) [2024-11-07 20:28:50,178 INFO L276 IsEmpty]: Start isEmpty. Operand 670 states and 763 transitions. [2024-11-07 20:28:50,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1042 [2024-11-07 20:28:50,202 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 20:28:50,203 INFO L215 NwaCegarLoop]: trace histogram [95, 95, 94, 94, 94, 94, 94, 94, 94, 94, 94, 1, 1, 1, 1, 1] [2024-11-07 20:28:50,216 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-07 20:28:50,403 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,SelfDestructingSolverStorable6 [2024-11-07 20:28:50,404 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-07 20:28:50,404 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 20:28:50,404 INFO L85 PathProgramCache]: Analyzing trace with hash 1361486222, now seen corresponding path program 6 times [2024-11-07 20:28:50,404 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 20:28:50,404 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1231605518] [2024-11-07 20:28:50,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 20:28:50,404 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 20:28:50,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-07 20:28:50,591 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1965290985] [2024-11-07 20:28:50,592 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-11-07 20:28:50,592 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 20:28:50,592 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 20:28:50,593 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 20:28:50,594 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 20:28:51,432 INFO L227 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 95 check-sat command(s) [2024-11-07 20:28:51,432 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-07 20:28:51,437 INFO L255 TraceCheckSpWp]: Trace formula consists of 1629 conjuncts, 98 conjuncts are in the unsatisfiable core [2024-11-07 20:28:51,447 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 20:28:54,457 INFO L134 CoverageAnalysis]: Checked inductivity of 48363 backedges. 0 proven. 30879 refuted. 0 times theorem prover too weak. 17484 trivial. 0 not checked. [2024-11-07 20:28:54,457 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 20:28:54,858 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 20:28:54,858 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1231605518] [2024-11-07 20:28:54,858 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-07 20:28:54,858 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1965290985] [2024-11-07 20:28:54,859 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1965290985] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 20:28:54,859 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-07 20:28:54,859 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [97] total 97 [2024-11-07 20:28:54,859 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1900616219] [2024-11-07 20:28:54,859 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-07 20:28:54,860 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 98 states [2024-11-07 20:28:54,860 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 20:28:54,862 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 98 interpolants. [2024-11-07 20:28:54,863 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=4771, Invalid=5531, Unknown=0, NotChecked=0, Total=10302 [2024-11-07 20:28:54,864 INFO L87 Difference]: Start difference. First operand 670 states and 763 transitions. Second operand has 98 states, 97 states have (on average 5.917525773195877) internal successors, (574), 98 states have internal predecessors, (574), 94 states have call successors, (94), 1 states have call predecessors, (94), 1 states have return successors, (94), 94 states have call predecessors, (94), 94 states have call successors, (94) [2024-11-07 20:28:59,722 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 20:28:59,722 INFO L93 Difference]: Finished difference Result 682 states and 777 transitions. [2024-11-07 20:28:59,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 97 states. [2024-11-07 20:28:59,723 INFO L78 Accepts]: Start accepts. Automaton has has 98 states, 97 states have (on average 5.917525773195877) internal successors, (574), 98 states have internal predecessors, (574), 94 states have call successors, (94), 1 states have call predecessors, (94), 1 states have return successors, (94), 94 states have call predecessors, (94), 94 states have call successors, (94) Word has length 1041 [2024-11-07 20:28:59,725 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 20:28:59,727 INFO L225 Difference]: With dead ends: 682 [2024-11-07 20:28:59,727 INFO L226 Difference]: Without dead ends: 681 [2024-11-07 20:28:59,732 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1152 GetRequests, 958 SyntacticMatches, 0 SemanticMatches, 194 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4751 ImplicationChecksByTransitivity, 6.9s TimeCoverageRelationStatistics Valid=14359, Invalid=23861, Unknown=0, NotChecked=0, Total=38220 [2024-11-07 20:28:59,733 INFO L432 NwaCegarLoop]: 12 mSDtfsCounter, 473 mSDsluCounter, 235 mSDsCounter, 0 mSdLazyCounter, 497 mSolverCounterSat, 189 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 474 SdHoareTripleChecker+Valid, 247 SdHoareTripleChecker+Invalid, 686 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 189 IncrementalHoareTripleChecker+Valid, 497 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-07 20:28:59,733 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [474 Valid, 247 Invalid, 686 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [189 Valid, 497 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-07 20:28:59,735 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 681 states. [2024-11-07 20:28:59,761 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 681 to 677. [2024-11-07 20:28:59,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 677 states, 580 states have (on average 1.0017241379310344) internal successors, (581), 580 states have internal predecessors, (581), 95 states have call successors, (95), 1 states have call predecessors, (95), 1 states have return successors, (95), 95 states have call predecessors, (95), 95 states have call successors, (95) [2024-11-07 20:28:59,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 677 states to 677 states and 771 transitions. [2024-11-07 20:28:59,765 INFO L78 Accepts]: Start accepts. Automaton has 677 states and 771 transitions. Word has length 1041 [2024-11-07 20:28:59,768 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 20:28:59,768 INFO L471 AbstractCegarLoop]: Abstraction has 677 states and 771 transitions. [2024-11-07 20:28:59,769 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 98 states, 97 states have (on average 5.917525773195877) internal successors, (574), 98 states have internal predecessors, (574), 94 states have call successors, (94), 1 states have call predecessors, (94), 1 states have return successors, (94), 94 states have call predecessors, (94), 94 states have call successors, (94) [2024-11-07 20:28:59,769 INFO L276 IsEmpty]: Start isEmpty. Operand 677 states and 771 transitions. [2024-11-07 20:28:59,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1053 [2024-11-07 20:28:59,776 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 20:28:59,776 INFO L215 NwaCegarLoop]: trace histogram [96, 96, 95, 95, 95, 95, 95, 95, 95, 95, 95, 1, 1, 1, 1, 1] [2024-11-07 20:28:59,792 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 20:28:59,977 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,8 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 20:28:59,977 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-07 20:28:59,977 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 20:28:59,978 INFO L85 PathProgramCache]: Analyzing trace with hash -444417366, now seen corresponding path program 7 times [2024-11-07 20:28:59,978 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 20:28:59,978 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1469071398] [2024-11-07 20:28:59,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 20:28:59,978 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 20:29:00,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-07 20:29:00,136 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [179389180] [2024-11-07 20:29:00,136 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-07 20:29:00,136 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 20:29:00,136 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 20:29:00,139 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 20:29:00,140 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 20:29:00,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 20:29:00,375 INFO L255 TraceCheckSpWp]: Trace formula consists of 1646 conjuncts, 193 conjuncts are in the unsatisfiable core [2024-11-07 20:29:00,384 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 20:29:03,324 INFO L134 CoverageAnalysis]: Checked inductivity of 49400 backedges. 0 proven. 31540 refuted. 0 times theorem prover too weak. 17860 trivial. 0 not checked. [2024-11-07 20:29:03,324 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 20:29:14,378 INFO L134 CoverageAnalysis]: Checked inductivity of 49400 backedges. 0 proven. 31540 refuted. 0 times theorem prover too weak. 17860 trivial. 0 not checked. [2024-11-07 20:29:14,378 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 20:29:14,378 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1469071398] [2024-11-07 20:29:14,378 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-07 20:29:14,378 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [179389180] [2024-11-07 20:29:14,378 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [179389180] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 20:29:14,378 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-07 20:29:14,378 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [97, 97] total 193 [2024-11-07 20:29:14,378 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [439040708] [2024-11-07 20:29:14,378 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-07 20:29:14,380 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 194 states [2024-11-07 20:29:14,380 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 20:29:14,383 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 194 interpolants. [2024-11-07 20:29:14,385 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9601, Invalid=27841, Unknown=0, NotChecked=0, Total=37442 [2024-11-07 20:29:14,385 INFO L87 Difference]: Start difference. First operand 677 states and 771 transitions. Second operand has 194 states, 193 states have (on average 5.979274611398964) internal successors, (1154), 194 states have internal predecessors, (1154), 190 states have call successors, (190), 1 states have call predecessors, (190), 1 states have return successors, (190), 190 states have call predecessors, (190), 190 states have call successors, (190)