/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationJordan_32.epf -i ../../../trunk/examples/svcomp/verifythis/lcp.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-a47f07a [2021-04-16 07:59:57,972 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-04-16 07:59:57,975 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-04-16 07:59:58,013 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-04-16 07:59:58,013 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-04-16 07:59:58,016 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-04-16 07:59:58,018 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-04-16 07:59:58,023 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-04-16 07:59:58,025 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-04-16 07:59:58,029 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-04-16 07:59:58,029 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-04-16 07:59:58,030 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-04-16 07:59:58,031 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-04-16 07:59:58,032 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-04-16 07:59:58,034 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-04-16 07:59:58,035 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-04-16 07:59:58,037 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-04-16 07:59:58,038 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-04-16 07:59:58,040 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-04-16 07:59:58,048 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-04-16 07:59:58,049 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-04-16 07:59:58,050 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-04-16 07:59:58,051 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-04-16 07:59:58,052 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-04-16 07:59:58,053 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-04-16 07:59:58,060 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-04-16 07:59:58,061 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-04-16 07:59:58,061 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-04-16 07:59:58,062 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationJordan_32.epf [2021-04-16 07:59:58,070 INFO L113 SettingsManager]: Loading preferences was successful [2021-04-16 07:59:58,070 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-04-16 07:59:58,072 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-04-16 07:59:58,072 INFO L138 SettingsManager]: * sizeof long=4 [2021-04-16 07:59:58,072 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-04-16 07:59:58,072 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-04-16 07:59:58,072 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-04-16 07:59:58,072 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-04-16 07:59:58,072 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-04-16 07:59:58,073 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-04-16 07:59:58,073 INFO L138 SettingsManager]: * sizeof long double=12 [2021-04-16 07:59:58,073 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-04-16 07:59:58,073 INFO L138 SettingsManager]: * Use constant arrays=true [2021-04-16 07:59:58,073 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-04-16 07:59:58,073 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-04-16 07:59:58,073 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-04-16 07:59:58,073 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-04-16 07:59:58,074 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-04-16 07:59:58,074 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-04-16 07:59:58,074 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-04-16 07:59:58,074 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2021-04-16 07:59:58,074 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-04-16 07:59:58,074 INFO L138 SettingsManager]: * Loop acceleration method that is used by accelerated interpolation=JORDAN [2021-04-16 07:59:58,074 INFO L138 SettingsManager]: * Use separate solver for trace checks=false WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-04-16 07:59:58,386 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-04-16 07:59:58,416 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-04-16 07:59:58,417 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-04-16 07:59:58,418 INFO L271 PluginConnector]: Initializing CDTParser... [2021-04-16 07:59:58,419 INFO L275 PluginConnector]: CDTParser initialized [2021-04-16 07:59:58,419 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/verifythis/lcp.c [2021-04-16 07:59:58,495 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d1eee11fd/464c801973e64e6d883e66d3fda399ab/FLAG1718d7625 [2021-04-16 07:59:58,906 INFO L306 CDTParser]: Found 1 translation units. [2021-04-16 07:59:58,907 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/verifythis/lcp.c [2021-04-16 07:59:58,913 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d1eee11fd/464c801973e64e6d883e66d3fda399ab/FLAG1718d7625 [2021-04-16 07:59:59,300 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d1eee11fd/464c801973e64e6d883e66d3fda399ab [2021-04-16 07:59:59,302 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-04-16 07:59:59,303 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-04-16 07:59:59,310 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-04-16 07:59:59,311 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-04-16 07:59:59,324 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-04-16 07:59:59,324 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.04 07:59:59" (1/1) ... [2021-04-16 07:59:59,326 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7c2416a8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.04 07:59:59, skipping insertion in model container [2021-04-16 07:59:59,326 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.04 07:59:59" (1/1) ... [2021-04-16 07:59:59,332 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-04-16 07:59:59,346 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-04-16 07:59:59,485 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/verifythis/lcp.c[515,528] [2021-04-16 07:59:59,518 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-04-16 07:59:59,529 INFO L203 MainTranslator]: Completed pre-run [2021-04-16 07:59:59,552 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/verifythis/lcp.c[515,528] [2021-04-16 07:59:59,580 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-04-16 07:59:59,597 INFO L208 MainTranslator]: Completed translation [2021-04-16 07:59:59,597 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.04 07:59:59 WrapperNode [2021-04-16 07:59:59,597 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-04-16 07:59:59,598 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-04-16 07:59:59,598 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-04-16 07:59:59,598 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-04-16 07:59:59,607 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.04 07:59:59" (1/1) ... [2021-04-16 07:59:59,608 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.04 07:59:59" (1/1) ... [2021-04-16 07:59:59,622 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.04 07:59:59" (1/1) ... [2021-04-16 07:59:59,622 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.04 07:59:59" (1/1) ... [2021-04-16 07:59:59,637 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.04 07:59:59" (1/1) ... [2021-04-16 07:59:59,640 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.04 07:59:59" (1/1) ... [2021-04-16 07:59:59,641 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.04 07:59:59" (1/1) ... [2021-04-16 07:59:59,643 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-04-16 07:59:59,644 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-04-16 07:59:59,644 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-04-16 07:59:59,644 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-04-16 07:59:59,648 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.04 07:59:59" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-04-16 07:59:59,725 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-04-16 07:59:59,725 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-04-16 07:59:59,725 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-04-16 07:59:59,726 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-04-16 07:59:59,726 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-04-16 07:59:59,726 INFO L138 BoogieDeclarations]: Found implementation of procedure lcp [2021-04-16 07:59:59,726 INFO L138 BoogieDeclarations]: Found implementation of procedure check [2021-04-16 07:59:59,726 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-04-16 07:59:59,726 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-04-16 07:59:59,727 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2021-04-16 07:59:59,727 INFO L130 BoogieDeclarations]: Found specification of procedure free [2021-04-16 07:59:59,727 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-04-16 07:59:59,727 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-04-16 07:59:59,727 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-04-16 07:59:59,728 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-04-16 07:59:59,728 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-04-16 07:59:59,728 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-04-16 07:59:59,729 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-04-16 07:59:59,729 INFO L130 BoogieDeclarations]: Found specification of procedure lcp [2021-04-16 07:59:59,730 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-04-16 07:59:59,731 INFO L130 BoogieDeclarations]: Found specification of procedure check [2021-04-16 07:59:59,731 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-04-16 07:59:59,731 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-04-16 07:59:59,731 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-04-16 07:59:59,731 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-04-16 07:59:59,731 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-04-16 07:59:59,731 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-04-16 07:59:59,731 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-04-16 07:59:59,732 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-04-16 08:00:00,101 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-04-16 08:00:00,101 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-04-16 08:00:00,102 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.04 08:00:00 BoogieIcfgContainer [2021-04-16 08:00:00,102 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-04-16 08:00:00,104 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-04-16 08:00:00,104 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-04-16 08:00:00,107 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-04-16 08:00:00,107 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.04 07:59:59" (1/3) ... [2021-04-16 08:00:00,107 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b9ef422 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.04 08:00:00, skipping insertion in model container [2021-04-16 08:00:00,108 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.04 07:59:59" (2/3) ... [2021-04-16 08:00:00,108 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b9ef422 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.04 08:00:00, skipping insertion in model container [2021-04-16 08:00:00,108 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.04 08:00:00" (3/3) ... [2021-04-16 08:00:00,109 INFO L111 eAbstractionObserver]: Analyzing ICFG lcp.c [2021-04-16 08:00:00,114 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2021-04-16 08:00:00,117 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-04-16 08:00:00,132 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-04-16 08:00:00,148 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-04-16 08:00:00,148 INFO L377 AbstractCegarLoop]: Hoare is true [2021-04-16 08:00:00,148 INFO L378 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2021-04-16 08:00:00,148 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-04-16 08:00:00,148 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-04-16 08:00:00,149 INFO L381 AbstractCegarLoop]: Difference is false [2021-04-16 08:00:00,149 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-04-16 08:00:00,149 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-04-16 08:00:00,160 INFO L276 IsEmpty]: Start isEmpty. Operand has 49 states, 30 states have (on average 1.2333333333333334) internal successors, (37), 31 states have internal predecessors, (37), 10 states have call successors, (10), 7 states have call predecessors, (10), 7 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2021-04-16 08:00:00,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2021-04-16 08:00:00,166 INFO L511 BasicCegarLoop]: Found error trace [2021-04-16 08:00:00,166 INFO L519 BasicCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-16 08:00:00,167 INFO L428 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-16 08:00:00,171 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-16 08:00:00,171 INFO L82 PathProgramCache]: Analyzing trace with hash -675162514, now seen corresponding path program 1 times [2021-04-16 08:00:00,177 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-04-16 08:00:00,178 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [577413243] [2021-04-16 08:00:00,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-16 08:00:00,234 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-04-16 08:00:00,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-16 08:00:00,366 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 08:00:00,367 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 08:00:00,368 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 08:00:00,368 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 08:00:00,409 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-04-16 08:00:00,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-16 08:00:00,440 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 08:00:00,441 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 08:00:00,443 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-04-16 08:00:00,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-16 08:00:00,451 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 08:00:00,452 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 08:00:00,453 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 08:00:00,454 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 08:00:00,459 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-04-16 08:00:00,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-16 08:00:00,471 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 08:00:00,472 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 08:00:00,472 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-04-16 08:00:00,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-16 08:00:00,482 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 08:00:00,482 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 08:00:00,484 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 08:00:00,484 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 08:00:00,485 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2021-04-16 08:00:00,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-16 08:00:00,490 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 08:00:00,491 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 08:00:00,491 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 08:00:00,492 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 08:00:00,492 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2021-04-16 08:00:00,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-16 08:00:00,497 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 08:00:00,498 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 08:00:00,499 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 08:00:00,499 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 08:00:00,500 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-04-16 08:00:00,501 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [577413243] [2021-04-16 08:00:00,503 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-16 08:00:00,503 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-04-16 08:00:00,503 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1692984521] [2021-04-16 08:00:00,506 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-04-16 08:00:00,507 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-04-16 08:00:00,516 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-04-16 08:00:00,517 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-04-16 08:00:00,519 INFO L87 Difference]: Start difference. First operand has 49 states, 30 states have (on average 1.2333333333333334) internal successors, (37), 31 states have internal predecessors, (37), 10 states have call successors, (10), 7 states have call predecessors, (10), 7 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) Second operand has 4 states, 4 states have (on average 5.0) internal successors, (20), 2 states have internal predecessors, (20), 2 states have call successors, (9), 4 states have call predecessors, (9), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2021-04-16 08:00:00,781 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-16 08:00:00,782 INFO L93 Difference]: Finished difference Result 91 states and 113 transitions. [2021-04-16 08:00:00,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-04-16 08:00:00,784 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 2 states have internal predecessors, (20), 2 states have call successors, (9), 4 states have call predecessors, (9), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 41 [2021-04-16 08:00:00,784 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-16 08:00:00,790 INFO L225 Difference]: With dead ends: 91 [2021-04-16 08:00:00,790 INFO L226 Difference]: Without dead ends: 41 [2021-04-16 08:00:00,793 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 74.3ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-04-16 08:00:00,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2021-04-16 08:00:00,822 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2021-04-16 08:00:00,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41 states, 25 states have (on average 1.12) internal successors, (28), 26 states have internal predecessors, (28), 10 states have call successors, (10), 7 states have call predecessors, (10), 5 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2021-04-16 08:00:00,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 45 transitions. [2021-04-16 08:00:00,826 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 45 transitions. Word has length 41 [2021-04-16 08:00:00,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-16 08:00:00,827 INFO L480 AbstractCegarLoop]: Abstraction has 41 states and 45 transitions. [2021-04-16 08:00:00,827 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 2 states have internal predecessors, (20), 2 states have call successors, (9), 4 states have call predecessors, (9), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2021-04-16 08:00:00,827 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 45 transitions. [2021-04-16 08:00:00,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2021-04-16 08:00:00,829 INFO L511 BasicCegarLoop]: Found error trace [2021-04-16 08:00:00,829 INFO L519 BasicCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-16 08:00:00,829 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-04-16 08:00:00,829 INFO L428 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-16 08:00:00,830 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-16 08:00:00,830 INFO L82 PathProgramCache]: Analyzing trace with hash 1025657093, now seen corresponding path program 1 times [2021-04-16 08:00:00,830 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-04-16 08:00:00,830 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [532010207] [2021-04-16 08:00:00,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-16 08:00:00,833 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-04-16 08:00:00,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-16 08:00:00,904 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 08:00:00,905 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 08:00:00,906 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 08:00:00,906 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-04-16 08:00:00,910 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 08:00:00,913 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-04-16 08:00:00,917 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 08:00:00,918 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 08:00:00,942 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-04-16 08:00:00,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-16 08:00:00,950 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 08:00:00,951 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 08:00:00,951 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-04-16 08:00:00,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-16 08:00:00,954 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 08:00:00,954 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 08:00:00,961 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-04-16 08:00:00,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-16 08:00:00,967 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 08:00:00,967 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-04-16 08:00:00,979 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-04-16 08:00:00,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-16 08:00:00,989 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 08:00:00,989 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 08:00:00,989 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2021-04-16 08:00:00,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-16 08:00:01,001 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 08:00:01,001 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-16 08:00:01,014 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 08:00:01,014 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-16 08:00:01,027 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 08:00:01,028 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-16 08:00:01,047 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-04-16 08:00:01,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-16 08:00:01,054 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 08:00:01,055 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 08:00:01,055 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-04-16 08:00:01,055 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [532010207] [2021-04-16 08:00:01,056 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-16 08:00:01,056 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-04-16 08:00:01,056 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1592505189] [2021-04-16 08:00:01,057 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-04-16 08:00:01,057 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-04-16 08:00:01,057 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-04-16 08:00:01,058 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2021-04-16 08:00:01,058 INFO L87 Difference]: Start difference. First operand 41 states and 45 transitions. Second operand has 10 states, 9 states have (on average 2.4444444444444446) internal successors, (22), 7 states have internal predecessors, (22), 3 states have call successors, (9), 4 states have call predecessors, (9), 3 states have return successors, (6), 4 states have call predecessors, (6), 3 states have call successors, (6) [2021-04-16 08:00:01,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-16 08:00:01,586 INFO L93 Difference]: Finished difference Result 64 states and 69 transitions. [2021-04-16 08:00:01,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-04-16 08:00:01,587 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.4444444444444446) internal successors, (22), 7 states have internal predecessors, (22), 3 states have call successors, (9), 4 states have call predecessors, (9), 3 states have return successors, (6), 4 states have call predecessors, (6), 3 states have call successors, (6) Word has length 43 [2021-04-16 08:00:01,587 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-16 08:00:01,588 INFO L225 Difference]: With dead ends: 64 [2021-04-16 08:00:01,588 INFO L226 Difference]: Without dead ends: 42 [2021-04-16 08:00:01,589 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 312.9ms TimeCoverageRelationStatistics Valid=54, Invalid=186, Unknown=0, NotChecked=0, Total=240 [2021-04-16 08:00:01,590 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2021-04-16 08:00:01,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2021-04-16 08:00:01,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 26 states have (on average 1.1153846153846154) internal successors, (29), 27 states have internal predecessors, (29), 10 states have call successors, (10), 7 states have call predecessors, (10), 5 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2021-04-16 08:00:01,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 46 transitions. [2021-04-16 08:00:01,603 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 46 transitions. Word has length 43 [2021-04-16 08:00:01,605 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-16 08:00:01,605 INFO L480 AbstractCegarLoop]: Abstraction has 42 states and 46 transitions. [2021-04-16 08:00:01,605 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 9 states have (on average 2.4444444444444446) internal successors, (22), 7 states have internal predecessors, (22), 3 states have call successors, (9), 4 states have call predecessors, (9), 3 states have return successors, (6), 4 states have call predecessors, (6), 3 states have call successors, (6) [2021-04-16 08:00:01,605 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 46 transitions. [2021-04-16 08:00:01,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2021-04-16 08:00:01,606 INFO L511 BasicCegarLoop]: Found error trace [2021-04-16 08:00:01,606 INFO L519 BasicCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-16 08:00:01,606 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-04-16 08:00:01,606 INFO L428 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-16 08:00:01,607 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-16 08:00:01,607 INFO L82 PathProgramCache]: Analyzing trace with hash -968487613, now seen corresponding path program 1 times [2021-04-16 08:00:01,607 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-04-16 08:00:01,607 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1734685326] [2021-04-16 08:00:01,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-16 08:00:01,610 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-04-16 08:00:01,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-16 08:00:01,722 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 08:00:01,722 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 08:00:01,723 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 08:00:01,723 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-04-16 08:00:01,727 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 08:00:01,732 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-04-16 08:00:01,736 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 08:00:01,738 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-04-16 08:00:01,761 INFO L142 QuantifierPusher]: treesize reduction 16, result has 64.4 percent of original size [2021-04-16 08:00:01,761 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-04-16 08:00:01,776 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 08:00:01,777 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-16 08:00:01,791 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 08:00:01,792 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-04-16 08:00:01,801 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 08:00:01,801 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-04-16 08:00:01,812 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 08:00:01,812 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 08:00:01,841 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-04-16 08:00:01,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-16 08:00:01,848 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 08:00:01,848 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 08:00:01,848 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-04-16 08:00:01,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-16 08:00:01,851 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 08:00:01,851 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 08:00:01,862 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-04-16 08:00:01,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-16 08:00:01,876 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 08:00:01,876 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-04-16 08:00:01,889 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-04-16 08:00:01,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-16 08:00:01,894 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 08:00:01,894 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 08:00:01,895 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2021-04-16 08:00:01,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-16 08:00:01,899 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 08:00:01,899 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 08:00:01,900 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-04-16 08:00:01,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-16 08:00:01,903 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 08:00:01,904 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 08:00:01,904 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-04-16 08:00:01,904 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1734685326] [2021-04-16 08:00:01,904 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-16 08:00:01,905 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-04-16 08:00:01,905 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1802883604] [2021-04-16 08:00:01,905 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-04-16 08:00:01,905 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-04-16 08:00:01,906 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-04-16 08:00:01,906 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2021-04-16 08:00:01,906 INFO L87 Difference]: Start difference. First operand 42 states and 46 transitions. Second operand has 12 states, 11 states have (on average 2.0) internal successors, (22), 7 states have internal predecessors, (22), 4 states have call successors, (9), 5 states have call predecessors, (9), 2 states have return successors, (6), 4 states have call predecessors, (6), 3 states have call successors, (6) [2021-04-16 08:00:02,546 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-16 08:00:02,546 INFO L93 Difference]: Finished difference Result 48 states and 51 transitions. [2021-04-16 08:00:02,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-04-16 08:00:02,547 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.0) internal successors, (22), 7 states have internal predecessors, (22), 4 states have call successors, (9), 5 states have call predecessors, (9), 2 states have return successors, (6), 4 states have call predecessors, (6), 3 states have call successors, (6) Word has length 43 [2021-04-16 08:00:02,548 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-16 08:00:02,548 INFO L225 Difference]: With dead ends: 48 [2021-04-16 08:00:02,549 INFO L226 Difference]: Without dead ends: 44 [2021-04-16 08:00:02,549 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 424.5ms TimeCoverageRelationStatistics Valid=78, Invalid=342, Unknown=0, NotChecked=0, Total=420 [2021-04-16 08:00:02,550 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2021-04-16 08:00:02,557 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 44. [2021-04-16 08:00:02,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 28 states have (on average 1.0714285714285714) internal successors, (30), 28 states have internal predecessors, (30), 10 states have call successors, (10), 8 states have call predecessors, (10), 5 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2021-04-16 08:00:02,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 47 transitions. [2021-04-16 08:00:02,559 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 47 transitions. Word has length 43 [2021-04-16 08:00:02,559 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-16 08:00:02,559 INFO L480 AbstractCegarLoop]: Abstraction has 44 states and 47 transitions. [2021-04-16 08:00:02,559 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.0) internal successors, (22), 7 states have internal predecessors, (22), 4 states have call successors, (9), 5 states have call predecessors, (9), 2 states have return successors, (6), 4 states have call predecessors, (6), 3 states have call successors, (6) [2021-04-16 08:00:02,559 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 47 transitions. [2021-04-16 08:00:02,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2021-04-16 08:00:02,560 INFO L511 BasicCegarLoop]: Found error trace [2021-04-16 08:00:02,561 INFO L519 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-16 08:00:02,561 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-04-16 08:00:02,561 INFO L428 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-16 08:00:02,561 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-16 08:00:02,561 INFO L82 PathProgramCache]: Analyzing trace with hash -582845443, now seen corresponding path program 1 times [2021-04-16 08:00:02,562 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-04-16 08:00:02,562 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [349736084] [2021-04-16 08:00:02,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-16 08:00:02,564 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-04-16 08:00:02,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-16 08:00:02,616 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 08:00:02,616 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 08:00:02,618 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 08:00:02,620 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-16 08:00:02,628 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 08:00:02,629 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-16 08:00:02,637 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 08:00:02,638 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-16 08:00:02,647 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 08:00:02,648 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-16 08:00:02,666 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 08:00:02,666 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 08:00:02,688 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-04-16 08:00:02,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-16 08:00:02,701 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 08:00:02,703 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 08:00:02,704 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-04-16 08:00:02,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-16 08:00:02,711 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 08:00:02,711 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 08:00:02,720 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-04-16 08:00:02,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-16 08:00:02,736 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 08:00:02,736 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 08:00:02,736 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-04-16 08:00:02,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-16 08:00:02,739 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 08:00:02,739 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 08:00:02,739 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2021-04-16 08:00:02,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-16 08:00:02,755 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 08:00:02,756 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-04-16 08:00:02,772 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 08:00:02,773 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-04-16 08:00:02,791 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 08:00:02,794 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-16 08:00:02,816 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 08:00:02,817 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-16 08:00:02,835 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-04-16 08:00:02,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-16 08:00:02,843 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 08:00:02,844 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 08:00:02,844 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2021-04-16 08:00:02,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-16 08:00:02,854 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 08:00:02,854 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-16 08:00:02,855 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-04-16 08:00:02,856 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [349736084] [2021-04-16 08:00:02,856 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-16 08:00:02,856 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-04-16 08:00:02,856 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [776678356] [2021-04-16 08:00:02,857 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-04-16 08:00:02,857 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-04-16 08:00:02,858 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-04-16 08:00:02,858 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=110, Unknown=0, NotChecked=0, Total=132 [2021-04-16 08:00:02,859 INFO L87 Difference]: Start difference. First operand 44 states and 47 transitions. Second operand has 12 states, 11 states have (on average 2.4545454545454546) internal successors, (27), 8 states have internal predecessors, (27), 4 states have call successors, (10), 5 states have call predecessors, (10), 2 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2021-04-16 08:00:03,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-04-16 08:00:03,515 INFO L93 Difference]: Finished difference Result 64 states and 70 transitions. [2021-04-16 08:00:03,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-04-16 08:00:03,516 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.4545454545454546) internal successors, (27), 8 states have internal predecessors, (27), 4 states have call successors, (10), 5 states have call predecessors, (10), 2 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) Word has length 50 [2021-04-16 08:00:03,516 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-04-16 08:00:03,518 INFO L225 Difference]: With dead ends: 64 [2021-04-16 08:00:03,518 INFO L226 Difference]: Without dead ends: 48 [2021-04-16 08:00:03,518 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 467.1ms TimeCoverageRelationStatistics Valid=76, Invalid=266, Unknown=0, NotChecked=0, Total=342 [2021-04-16 08:00:03,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2021-04-16 08:00:03,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 46. [2021-04-16 08:00:03,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 30 states have (on average 1.1) internal successors, (33), 30 states have internal predecessors, (33), 10 states have call successors, (10), 8 states have call predecessors, (10), 5 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2021-04-16 08:00:03,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 50 transitions. [2021-04-16 08:00:03,529 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 50 transitions. Word has length 50 [2021-04-16 08:00:03,530 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-04-16 08:00:03,530 INFO L480 AbstractCegarLoop]: Abstraction has 46 states and 50 transitions. [2021-04-16 08:00:03,530 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 11 states have (on average 2.4545454545454546) internal successors, (27), 8 states have internal predecessors, (27), 4 states have call successors, (10), 5 states have call predecessors, (10), 2 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2021-04-16 08:00:03,530 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 50 transitions. [2021-04-16 08:00:03,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-04-16 08:00:03,531 INFO L511 BasicCegarLoop]: Found error trace [2021-04-16 08:00:03,531 INFO L519 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-16 08:00:03,532 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-04-16 08:00:03,532 INFO L428 AbstractCegarLoop]: === Iteration 5 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-16 08:00:03,532 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-16 08:00:03,532 INFO L82 PathProgramCache]: Analyzing trace with hash 611931899, now seen corresponding path program 1 times [2021-04-16 08:00:03,533 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-04-16 08:00:03,533 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1892519530] [2021-04-16 08:00:03,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-16 08:00:03,594 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 08:00:03,614 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-04-16 08:00:03,665 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 08:00:03,666 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-04-16 08:00:03,667 INFO L175 rdanLoopAcceleration]: Guard: Formula: (and (let ((.cse0 (select |v_#memory_int_11| v_lcp_~a.base_3)) (.cse1 (* v_lcp_~l~0_8 4))) (= (select .cse0 (+ .cse1 (* v_lcp_~x_4 4) v_lcp_~a.offset_3)) (select .cse0 (+ .cse1 (* v_lcp_~y_4 4) v_lcp_~a.offset_3)))) (< (+ v_lcp_~l~0_8 v_lcp_~x_4) v_lcp_~n_3) (< (+ v_lcp_~l~0_8 v_lcp_~y_4) v_lcp_~n_3)) InVars {lcp_~x=v_lcp_~x_4, lcp_~l~0=v_lcp_~l~0_8, lcp_~a.offset=v_lcp_~a.offset_3, lcp_~y=v_lcp_~y_4, lcp_~a.base=v_lcp_~a.base_3, #memory_int=|v_#memory_int_11|, lcp_~n=v_lcp_~n_3} OutVars{lcp_~x=v_lcp_~x_4, lcp_~l~0=v_lcp_~l~0_8, lcp_~a.offset=v_lcp_~a.offset_3, lcp_~y=v_lcp_~y_4, lcp_~a.base=v_lcp_~a.base_3, #memory_int=|v_#memory_int_11|, lcp_~n=v_lcp_~n_3} AuxVars[] AssignedVars[] [2021-04-16 08:00:03,703 WARN L240 tifierPushTermWalker]: treesize reduction 42, result has 83.1 percent of original size [2021-04-16 08:00:03,711 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 08:00:03,736 INFO L725 QuantifierPusher]: Distributing 3 disjuncts over 3 conjuncts [2021-04-16 08:00:03,740 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 08:00:03,741 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 08:00:03,755 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 08:00:03,770 INFO L108 tifierPushTermWalker]: treesize reduction 2, result has 33.3 percent of original size [2021-04-16 08:00:03,780 INFO L108 tifierPushTermWalker]: treesize reduction 2, result has 33.3 percent of original size [2021-04-16 08:00:03,788 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 08:00:03,796 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 08:00:03,804 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 08:00:03,812 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 08:00:03,820 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 08:00:03,826 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-04-16 08:00:03,831 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 74 [2021-04-16 08:00:03,837 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 08:00:03,851 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 08:00:03,856 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 08:00:03,877 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 08:00:03,883 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 08:00:03,887 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 08:00:03,889 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-04-16 08:00:03,889 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-04-16 08:00:03,896 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 08:00:03,903 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 08:00:03,916 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 08:00:03,920 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 08:00:03,924 INFO L725 QuantifierPusher]: Distributing 3 disjuncts over 3 conjuncts [2021-04-16 08:00:03,926 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 08:00:03,930 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 08:00:03,948 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 08:00:03,955 INFO L108 tifierPushTermWalker]: treesize reduction 2, result has 33.3 percent of original size [2021-04-16 08:00:03,967 INFO L108 tifierPushTermWalker]: treesize reduction 2, result has 33.3 percent of original size [2021-04-16 08:00:03,973 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 08:00:03,979 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 08:00:03,995 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 08:00:04,000 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 08:00:04,015 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 08:00:04,016 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-04-16 08:00:04,017 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 74 [2021-04-16 08:00:04,028 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 08:00:04,037 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 08:00:04,041 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 08:00:04,047 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 08:00:04,062 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 08:00:04,067 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 08:00:04,069 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-04-16 08:00:04,069 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-04-16 08:00:04,080 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 08:00:04,090 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 08:00:04,096 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 08:00:04,123 INFO L118 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 08:00:04,126 INFO L725 QuantifierPusher]: Distributing 3 disjuncts over 3 conjuncts [2021-04-16 08:00:04,130 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 08:00:04,131 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 08:00:04,137 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 08:00:04,148 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 08:00:04,156 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 08:00:04,165 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 08:00:04,166 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-04-16 08:00:04,182 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 08:00:04,189 INFO L108 tifierPushTermWalker]: treesize reduction 4, result has 20.0 percent of original size [2021-04-16 08:00:04,200 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 08:00:04,210 INFO L108 tifierPushTermWalker]: treesize reduction 4, result has 20.0 percent of original size [2021-04-16 08:00:04,211 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 77 [2021-04-16 08:00:04,212 WARN L240 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 08:00:04,218 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 08:00:04,222 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 08:00:04,226 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 08:00:04,230 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 08:00:04,235 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 08:00:04,236 WARN L245 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-04-16 08:00:04,244 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 08:00:04,249 INFO L118 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 08:00:04,253 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 08:00:04,256 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 08:00:04,261 INFO L118 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 08:00:04,264 INFO L118 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 08:00:04,268 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 08:00:04,271 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 08:00:04,275 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 08:00:04,278 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 08:00:04,284 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 08:00:04,289 INFO L108 tifierPushTermWalker]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 08:00:04,291 WARN L245 tifierPushTermWalker]: treesize reduction 42, result has 83.1 percent of original size 207 [2021-04-16 08:00:04,351 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 08:00:04,354 INFO L725 QuantifierPusher]: Distributing 3 disjuncts over 3 conjuncts [2021-04-16 08:00:04,356 INFO L732 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 08:00:04,357 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 08:00:04,358 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 08:00:04,359 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 08:00:04,361 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 08:00:04,361 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-04-16 08:00:04,365 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-04-16 08:00:04,366 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 08:00:04,366 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 08:00:04,371 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-04-16 08:00:04,373 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 213 [2021-04-16 08:00:04,511 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 08:00:04,513 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-04-16 08:00:04,513 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-16 08:00:04,514 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-04-16 08:00:04,523 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1027 [2021-04-16 08:00:04,531 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.NullPointerException at de.uni_freiburg.informatik.ultimate.lib.acceleratedinterpolation.AcceleratedInterpolationCore.accelerateNestedLoops(AcceleratedInterpolationCore.java:459) at de.uni_freiburg.informatik.ultimate.lib.acceleratedinterpolation.AcceleratedInterpolationCore.acceleratedInterpolationCoreIsCorrect(AcceleratedInterpolationCore.java:165) at de.uni_freiburg.informatik.ultimate.lib.acceleratedinterpolation.AcceleratedInterpolation.(AcceleratedInterpolation.java:165) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModulePreferences.construct(IpTcStrategyModulePreferences.java:145) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:100) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.isCorrect(IpTcStrategyModuleBase.java:56) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.checkFeasibility(AutomatonFreeRefinementEngine.java:241) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:165) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:84) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:74) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:608) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:437) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:372) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:69) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:63) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterateAllErrorsAtOnce(TraceAbstractionStarter.java:317) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:171) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:127) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-04-16 08:00:04,533 INFO L168 Benchmark]: Toolchain (without parser) took 5230.09 ms. Allocated memory was 220.2 MB in the beginning and 269.5 MB in the end (delta: 49.3 MB). Free memory was 185.7 MB in the beginning and 237.1 MB in the end (delta: -51.5 MB). Peak memory consumption was 139.8 MB. Max. memory is 8.0 GB. [2021-04-16 08:00:04,534 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 220.2 MB. Free memory is still 202.4 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-04-16 08:00:04,536 INFO L168 Benchmark]: CACSL2BoogieTranslator took 287.06 ms. Allocated memory is still 220.2 MB. Free memory was 185.4 MB in the beginning and 203.0 MB in the end (delta: -17.5 MB). Peak memory consumption was 12.0 MB. Max. memory is 8.0 GB. [2021-04-16 08:00:04,537 INFO L168 Benchmark]: Boogie Preprocessor took 44.82 ms. Allocated memory is still 220.2 MB. Free memory was 203.0 MB in the beginning and 200.9 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-04-16 08:00:04,537 INFO L168 Benchmark]: RCFGBuilder took 458.94 ms. Allocated memory is still 220.2 MB. Free memory was 200.9 MB in the beginning and 179.9 MB in the end (delta: 21.0 MB). Peak memory consumption was 21.0 MB. Max. memory is 8.0 GB. [2021-04-16 08:00:04,539 INFO L168 Benchmark]: TraceAbstraction took 4428.90 ms. Allocated memory was 220.2 MB in the beginning and 269.5 MB in the end (delta: 49.3 MB). Free memory was 179.9 MB in the beginning and 237.1 MB in the end (delta: -57.2 MB). Peak memory consumption was 134.2 MB. Max. memory is 8.0 GB. [2021-04-16 08:00:04,544 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 ms. Allocated memory is still 220.2 MB. Free memory is still 202.4 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 287.06 ms. Allocated memory is still 220.2 MB. Free memory was 185.4 MB in the beginning and 203.0 MB in the end (delta: -17.5 MB). Peak memory consumption was 12.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 44.82 ms. Allocated memory is still 220.2 MB. Free memory was 203.0 MB in the beginning and 200.9 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 458.94 ms. Allocated memory is still 220.2 MB. Free memory was 200.9 MB in the beginning and 179.9 MB in the end (delta: 21.0 MB). Peak memory consumption was 21.0 MB. Max. memory is 8.0 GB. * TraceAbstraction took 4428.90 ms. Allocated memory was 220.2 MB in the beginning and 269.5 MB in the end (delta: 49.3 MB). Free memory was 179.9 MB in the beginning and 237.1 MB in the end (delta: -57.2 MB). Peak memory consumption was 134.2 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: NullPointerException: null de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: NullPointerException: null: de.uni_freiburg.informatik.ultimate.lib.acceleratedinterpolation.AcceleratedInterpolationCore.accelerateNestedLoops(AcceleratedInterpolationCore.java:459) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...