/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/acceleratedInterpolationWernerOverapprox_32.epf -i ../../../trunk/examples/svcomp/bitvector/jain_1-1.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-b7b32d2 [2021-02-22 01:32:20,900 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-02-22 01:32:20,903 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-02-22 01:32:20,955 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-02-22 01:32:20,984 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-02-22 01:32:20,986 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-02-22 01:32:20,999 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-02-22 01:32:21,001 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-02-22 01:32:21,004 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-02-22 01:32:21,005 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-02-22 01:32:21,011 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-02-22 01:32:21,014 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-02-22 01:32:21,018 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-02-22 01:32:21,020 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-02-22 01:32:21,022 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-02-22 01:32:21,025 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-02-22 01:32:21,033 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-02-22 01:32:21,046 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-02-22 01:32:21,047 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-02-22 01:32:21,047 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-02-22 01:32:21,048 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationWernerOverapprox_32.epf [2021-02-22 01:32:21,072 INFO L113 SettingsManager]: Loading preferences was successful [2021-02-22 01:32:21,073 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-02-22 01:32:21,077 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-02-22 01:32:21,078 INFO L138 SettingsManager]: * sizeof long=4 [2021-02-22 01:32:21,078 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-02-22 01:32:21,078 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-02-22 01:32:21,078 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-02-22 01:32:21,078 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-02-22 01:32:21,078 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-02-22 01:32:21,079 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-02-22 01:32:21,080 INFO L138 SettingsManager]: * sizeof long double=12 [2021-02-22 01:32:21,080 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-02-22 01:32:21,080 INFO L138 SettingsManager]: * Use constant arrays=true [2021-02-22 01:32:21,081 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-02-22 01:32:21,081 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-02-22 01:32:21,081 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2021-02-22 01:32:21,081 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-02-22 01:32:21,081 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-02-22 01:32:21,082 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-22 01:32:21,082 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-02-22 01:32:21,082 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2021-02-22 01:32:21,082 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-02-22 01:32:21,082 INFO L138 SettingsManager]: * Loop acceleration method that is used by accelerated interpolation=WERNER_OVERAPPROX [2021-02-22 01:32:21,083 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-02-22 01:32:21,478 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-02-22 01:32:21,508 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-02-22 01:32:21,511 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-02-22 01:32:21,513 INFO L271 PluginConnector]: Initializing CDTParser... [2021-02-22 01:32:21,513 INFO L275 PluginConnector]: CDTParser initialized [2021-02-22 01:32:21,514 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/bitvector/jain_1-1.c [2021-02-22 01:32:21,596 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/531dd33af/e09bed93f4854c39a06fbcfd091287d6/FLAG4c10a3b3c [2021-02-22 01:32:22,283 INFO L306 CDTParser]: Found 1 translation units. [2021-02-22 01:32:22,284 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/bitvector/jain_1-1.c [2021-02-22 01:32:22,291 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/531dd33af/e09bed93f4854c39a06fbcfd091287d6/FLAG4c10a3b3c [2021-02-22 01:32:22,659 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/531dd33af/e09bed93f4854c39a06fbcfd091287d6 [2021-02-22 01:32:22,662 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-02-22 01:32:22,678 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-02-22 01:32:22,683 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-02-22 01:32:22,684 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-02-22 01:32:22,689 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-02-22 01:32:22,690 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.02 01:32:22" (1/1) ... [2021-02-22 01:32:22,691 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@9cbcfe0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 01:32:22, skipping insertion in model container [2021-02-22 01:32:22,692 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.02 01:32:22" (1/1) ... [2021-02-22 01:32:22,700 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-02-22 01:32:22,717 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-02-22 01:32:22,941 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/bitvector/jain_1-1.c[370,383] [2021-02-22 01:32:22,958 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-22 01:32:22,971 INFO L203 MainTranslator]: Completed pre-run [2021-02-22 01:32:22,985 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/bitvector/jain_1-1.c[370,383] [2021-02-22 01:32:22,988 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-22 01:32:23,005 INFO L208 MainTranslator]: Completed translation [2021-02-22 01:32:23,006 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 01:32:23 WrapperNode [2021-02-22 01:32:23,006 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-02-22 01:32:23,008 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-02-22 01:32:23,008 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-02-22 01:32:23,009 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-02-22 01:32:23,023 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 01:32:23" (1/1) ... [2021-02-22 01:32:23,024 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 01:32:23" (1/1) ... [2021-02-22 01:32:23,030 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 01:32:23" (1/1) ... [2021-02-22 01:32:23,030 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 01:32:23" (1/1) ... [2021-02-22 01:32:23,035 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 01:32:23" (1/1) ... [2021-02-22 01:32:23,039 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 01:32:23" (1/1) ... [2021-02-22 01:32:23,040 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 01:32:23" (1/1) ... [2021-02-22 01:32:23,042 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-02-22 01:32:23,043 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-02-22 01:32:23,044 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-02-22 01:32:23,044 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-02-22 01:32:23,045 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 01:32:23" (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 [2021-02-22 01:32:23,132 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-02-22 01:32:23,133 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-02-22 01:32:23,133 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-02-22 01:32:23,133 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-02-22 01:32:23,133 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-02-22 01:32:23,133 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-02-22 01:32:23,134 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-02-22 01:32:23,134 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-02-22 01:32:23,134 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-02-22 01:32:23,134 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2021-02-22 01:32:23,134 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-02-22 01:32:23,135 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-02-22 01:32:23,135 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-02-22 01:32:23,135 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-02-22 01:32:23,135 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-02-22 01:32:23,135 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-02-22 01:32:23,136 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-02-22 01:32:23,136 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-02-22 01:32:23,409 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-02-22 01:32:23,410 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-02-22 01:32:23,411 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.02 01:32:23 BoogieIcfgContainer [2021-02-22 01:32:23,411 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-02-22 01:32:23,425 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-02-22 01:32:23,425 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-02-22 01:32:23,428 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-02-22 01:32:23,429 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.02 01:32:22" (1/3) ... [2021-02-22 01:32:23,430 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e3921f2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.02 01:32:23, skipping insertion in model container [2021-02-22 01:32:23,430 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 01:32:23" (2/3) ... [2021-02-22 01:32:23,430 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e3921f2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.02 01:32:23, skipping insertion in model container [2021-02-22 01:32:23,430 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.02 01:32:23" (3/3) ... [2021-02-22 01:32:23,432 INFO L111 eAbstractionObserver]: Analyzing ICFG jain_1-1.c [2021-02-22 01:32:23,441 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2021-02-22 01:32:23,446 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-02-22 01:32:23,464 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-02-22 01:32:23,502 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-02-22 01:32:23,503 INFO L377 AbstractCegarLoop]: Hoare is true [2021-02-22 01:32:23,504 INFO L378 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2021-02-22 01:32:23,504 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-02-22 01:32:23,504 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-02-22 01:32:23,504 INFO L381 AbstractCegarLoop]: Difference is false [2021-02-22 01:32:23,504 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-02-22 01:32:23,504 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-02-22 01:32:23,519 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states. [2021-02-22 01:32:23,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-02-22 01:32:23,528 INFO L414 BasicCegarLoop]: Found error trace [2021-02-22 01:32:23,529 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-22 01:32:23,530 INFO L428 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-22 01:32:23,536 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-22 01:32:23,536 INFO L82 PathProgramCache]: Analyzing trace with hash 1256106646, now seen corresponding path program 1 times [2021-02-22 01:32:23,546 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-22 01:32:23,546 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1087114494] [2021-02-22 01:32:23,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-22 01:32:23,648 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-22 01:32:23,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:32:23,857 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:32:23,858 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:32:23,859 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:32:23,860 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-22 01:32:23,887 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:32:23,889 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-02-22 01:32:23,906 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:32:23,907 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-22 01:32:23,915 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:32:23,916 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-22 01:32:23,924 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:32:23,925 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:32:23,963 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-22 01:32:23,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 01:32:23,987 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:32:23,988 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 01:32:23,998 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-22 01:32:24,003 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1087114494] [2021-02-22 01:32:24,008 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-22 01:32:24,009 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-02-22 01:32:24,009 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [414262544] [2021-02-22 01:32:24,021 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-02-22 01:32:24,022 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-22 01:32:24,041 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-02-22 01:32:24,043 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-02-22 01:32:24,046 INFO L87 Difference]: Start difference. First operand 30 states. Second operand 7 states. [2021-02-22 01:32:24,363 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-22 01:32:24,364 INFO L93 Difference]: Finished difference Result 50 states and 62 transitions. [2021-02-22 01:32:24,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-02-22 01:32:24,366 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 21 [2021-02-22 01:32:24,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-22 01:32:24,375 INFO L225 Difference]: With dead ends: 50 [2021-02-22 01:32:24,375 INFO L226 Difference]: Without dead ends: 34 [2021-02-22 01:32:24,380 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2021-02-22 01:32:24,400 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2021-02-22 01:32:24,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 32. [2021-02-22 01:32:24,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2021-02-22 01:32:24,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 32 transitions. [2021-02-22 01:32:24,435 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 32 transitions. Word has length 21 [2021-02-22 01:32:24,435 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-22 01:32:24,435 INFO L480 AbstractCegarLoop]: Abstraction has 32 states and 32 transitions. [2021-02-22 01:32:24,436 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2021-02-22 01:32:24,436 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 32 transitions. [2021-02-22 01:32:24,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-02-22 01:32:24,437 INFO L414 BasicCegarLoop]: Found error trace [2021-02-22 01:32:24,437 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-22 01:32:24,438 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-02-22 01:32:24,438 INFO L428 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-22 01:32:24,439 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-22 01:32:24,439 INFO L82 PathProgramCache]: Analyzing trace with hash 1313540779, now seen corresponding path program 1 times [2021-02-22 01:32:24,439 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-22 01:32:24,440 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1855296758] [2021-02-22 01:32:24,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-22 01:32:24,517 WARN L141 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-02-22 01:32:24,532 WARN L147 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size 17 [2021-02-22 01:32:24,539 WARN L141 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-02-22 01:32:24,541 WARN L147 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size 17 [2021-02-22 01:32:24,570 WARN L141 QuantifierPusher]: treesize reduction 4, result has 88.2 percent of original size [2021-02-22 01:32:24,586 INFO L723 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2021-02-22 01:32:24,593 INFO L730 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:32:24,593 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 01:32:24,596 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:32:24,604 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 01:32:24,606 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:32:24,607 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-02-22 01:32:24,613 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 01:32:24,614 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:32:24,616 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-02-22 01:32:24,618 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-02-22 01:32:24,620 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 01:32:24,622 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:32:24,624 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-02-22 01:32:24,626 WARN L147 QuantifierPusher]: treesize reduction 4, result has 88.2 percent of original size 30 [2021-02-22 01:32:24,636 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:32:24,640 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 01:32:24,641 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:32:24,642 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-02-22 01:32:24,647 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 01:32:24,648 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:32:24,649 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-02-22 01:32:24,651 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-02-22 01:32:24,662 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:32:24,663 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 01:32:24,667 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:32:24,673 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 01:32:24,677 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:32:24,680 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-02-22 01:32:24,682 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-02-22 01:32:24,682 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 01:32:24,685 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:32:24,696 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 01:32:24,699 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:32:24,701 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-02-22 01:32:24,704 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-02-22 01:32:24,705 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 01:32:24,706 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:32:24,712 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 01:32:24,715 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:32:24,718 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-02-22 01:32:24,720 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-02-22 01:32:24,720 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 01:32:24,722 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:32:24,732 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 01:32:24,734 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:32:24,735 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-02-22 01:32:24,737 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-02-22 01:32:24,759 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 01:32:24,760 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:32:24,763 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-02-22 01:32:24,770 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 01:32:24,772 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:32:24,773 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-02-22 01:32:24,784 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 62 [2021-02-22 01:32:24,807 WARN L141 QuantifierPusher]: treesize reduction -7, result has 102.8 percent of original size [2021-02-22 01:32:24,828 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 01:32:24,829 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:32:24,830 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-02-22 01:32:24,834 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 01:32:24,835 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:32:24,836 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-02-22 01:32:24,842 WARN L147 QuantifierPusher]: treesize reduction -7, result has 102.8 percent of original size 255 [2021-02-22 01:32:24,845 WARN L141 QuantifierPusher]: treesize reduction 17, result has 5.6 percent of original size [2021-02-22 01:32:24,845 WARN L147 QuantifierPusher]: treesize reduction 17, result has 5.6 percent of original size 1 [2021-02-22 01:32:24,847 WARN L141 QuantifierPusher]: treesize reduction 17, result has 5.6 percent of original size [2021-02-22 01:32:24,847 WARN L147 QuantifierPusher]: treesize reduction 17, result has 5.6 percent of original size 1 [2021-02-22 01:32:24,850 WARN L141 QuantifierPusher]: treesize reduction 2, result has 80.0 percent of original size [2021-02-22 01:32:24,851 WARN L147 QuantifierPusher]: treesize reduction 2, result has 80.0 percent of original size 8 [2021-02-22 01:32:24,854 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:32:24,860 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-02-22 01:32:24,861 WARN L141 QuantifierPusher]: treesize reduction 19, result has 5.0 percent of original size [2021-02-22 01:32:24,862 WARN L147 QuantifierPusher]: treesize reduction 19, result has 5.0 percent of original size 1 [2021-02-22 01:32:24,863 WARN L141 QuantifierPusher]: treesize reduction 19, result has 5.0 percent of original size [2021-02-22 01:32:24,864 WARN L147 QuantifierPusher]: treesize reduction 19, result has 5.0 percent of original size 1 [2021-02-22 01:32:24,866 WARN L141 QuantifierPusher]: treesize reduction 2, result has 80.0 percent of original size [2021-02-22 01:32:24,868 WARN L147 QuantifierPusher]: treesize reduction 2, result has 80.0 percent of original size 8 [2021-02-22 01:32:24,870 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:32:24,875 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-02-22 01:32:24,877 WARN L141 QuantifierPusher]: treesize reduction 3, result has 83.3 percent of original size [2021-02-22 01:32:24,878 WARN L147 QuantifierPusher]: treesize reduction 3, result has 83.3 percent of original size 15 [2021-02-22 01:32:24,880 WARN L141 QuantifierPusher]: treesize reduction 3, result has 83.3 percent of original size [2021-02-22 01:32:24,881 WARN L147 QuantifierPusher]: treesize reduction 3, result has 83.3 percent of original size 15 [2021-02-22 01:32:24,889 WARN L141 QuantifierPusher]: treesize reduction 4, result has 87.9 percent of original size [2021-02-22 01:32:24,891 INFO L723 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2021-02-22 01:32:24,893 INFO L730 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:32:24,893 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 01:32:24,895 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:32:24,899 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 01:32:24,901 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:32:24,901 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-02-22 01:32:24,905 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 01:32:24,906 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:32:24,907 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-02-22 01:32:24,908 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-02-22 01:32:24,909 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 01:32:24,910 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:32:24,911 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-02-22 01:32:24,912 WARN L147 QuantifierPusher]: treesize reduction 4, result has 87.9 percent of original size 29 [2021-02-22 01:32:24,915 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:32:24,918 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 01:32:24,919 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:32:24,920 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-02-22 01:32:24,922 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 01:32:24,923 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:32:24,924 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-02-22 01:32:24,926 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-02-22 01:32:24,929 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:32:24,930 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 01:32:24,931 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:32:24,934 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 01:32:24,935 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:32:24,936 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-02-22 01:32:24,938 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-02-22 01:32:24,939 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 01:32:24,939 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:32:24,942 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 01:32:24,943 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:32:24,944 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-02-22 01:32:24,945 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-02-22 01:32:24,946 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 01:32:24,947 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:32:24,950 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 01:32:24,951 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:32:24,952 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-02-22 01:32:24,953 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-02-22 01:32:24,953 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 01:32:24,954 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:32:24,956 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 01:32:24,958 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:32:24,958 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-02-22 01:32:24,959 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-02-22 01:32:24,968 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 01:32:24,973 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:32:24,974 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-02-22 01:32:24,977 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 01:32:24,978 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:32:24,979 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-02-22 01:32:24,982 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-02-22 01:32:24,993 WARN L141 QuantifierPusher]: treesize reduction -7, result has 102.8 percent of original size [2021-02-22 01:32:24,996 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 01:32:24,997 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:32:24,998 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-02-22 01:32:25,001 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 01:32:25,002 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:32:25,003 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-02-22 01:32:25,007 WARN L147 QuantifierPusher]: treesize reduction -7, result has 102.8 percent of original size 253 [2021-02-22 01:32:25,009 WARN L141 QuantifierPusher]: treesize reduction 21, result has 4.5 percent of original size [2021-02-22 01:32:25,010 WARN L147 QuantifierPusher]: treesize reduction 21, result has 4.5 percent of original size 1 [2021-02-22 01:32:25,011 WARN L141 QuantifierPusher]: treesize reduction 21, result has 4.5 percent of original size [2021-02-22 01:32:25,011 WARN L147 QuantifierPusher]: treesize reduction 21, result has 4.5 percent of original size 1 [2021-02-22 01:32:25,013 WARN L141 QuantifierPusher]: treesize reduction 2, result has 80.0 percent of original size [2021-02-22 01:32:25,015 WARN L147 QuantifierPusher]: treesize reduction 2, result has 80.0 percent of original size 8 [2021-02-22 01:32:25,017 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:32:25,021 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-02-22 01:32:25,023 WARN L141 QuantifierPusher]: treesize reduction 7, result has 68.2 percent of original size [2021-02-22 01:32:25,024 WARN L147 QuantifierPusher]: treesize reduction 7, result has 68.2 percent of original size 15 [2021-02-22 01:32:25,027 WARN L141 QuantifierPusher]: treesize reduction 7, result has 68.2 percent of original size [2021-02-22 01:32:25,031 WARN L147 QuantifierPusher]: treesize reduction 7, result has 68.2 percent of original size 15 [2021-02-22 01:32:25,039 WARN L141 QuantifierPusher]: treesize reduction 4, result has 87.9 percent of original size [2021-02-22 01:32:25,041 INFO L723 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2021-02-22 01:32:25,047 INFO L730 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:32:25,047 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 01:32:25,053 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:32:25,057 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 01:32:25,058 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:32:25,059 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-02-22 01:32:25,062 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 01:32:25,063 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:32:25,065 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-02-22 01:32:25,067 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-02-22 01:32:25,067 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 01:32:25,069 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:32:25,070 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-02-22 01:32:25,073 WARN L147 QuantifierPusher]: treesize reduction 4, result has 87.9 percent of original size 29 [2021-02-22 01:32:25,079 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:32:25,082 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 01:32:25,083 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:32:25,084 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-02-22 01:32:25,086 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 01:32:25,087 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:32:25,088 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-02-22 01:32:25,089 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-02-22 01:32:25,093 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:32:25,094 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 01:32:25,095 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:32:25,097 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 01:32:25,098 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:32:25,099 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-02-22 01:32:25,100 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-02-22 01:32:25,100 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 01:32:25,101 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:32:25,104 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 01:32:25,105 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:32:25,106 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-02-22 01:32:25,107 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-02-22 01:32:25,107 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 01:32:25,108 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:32:25,111 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 01:32:25,112 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:32:25,112 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-02-22 01:32:25,113 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-02-22 01:32:25,114 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 01:32:25,114 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:32:25,117 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 01:32:25,118 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:32:25,119 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-02-22 01:32:25,120 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-02-22 01:32:25,124 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 01:32:25,125 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:32:25,126 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-02-22 01:32:25,128 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 01:32:25,129 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:32:25,130 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-02-22 01:32:25,133 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-02-22 01:32:25,141 WARN L141 QuantifierPusher]: treesize reduction -7, result has 102.8 percent of original size [2021-02-22 01:32:25,143 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 01:32:25,144 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:32:25,145 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-02-22 01:32:25,150 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 01:32:25,155 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 01:32:25,159 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-02-22 01:32:25,166 WARN L147 QuantifierPusher]: treesize reduction -7, result has 102.8 percent of original size 253 [2021-02-22 01:32:25,167 INFO L206 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2021-02-22 01:32:25,210 WARN L167 FreeRefinementEngine]: Strategy FIXED_PREFERENCES was unsuccessful and could not determine trace feasibility [2021-02-22 01:32:25,210 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2021-02-22 01:32:25,216 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-02-22 01:32:25,233 WARN L227 ceAbstractionStarter]: Unable to decide correctness. Please check the following counterexample manually. [2021-02-22 01:32:25,233 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.02 01:32:25 BoogieIcfgContainer [2021-02-22 01:32:25,233 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-02-22 01:32:25,236 INFO L168 Benchmark]: Toolchain (without parser) took 2569.34 ms. Allocated memory was 158.3 MB in the beginning and 195.0 MB in the end (delta: 36.7 MB). Free memory was 135.0 MB in the beginning and 133.1 MB in the end (delta: 1.8 MB). Peak memory consumption was 39.1 MB. Max. memory is 8.0 GB. [2021-02-22 01:32:25,236 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 158.3 MB. Free memory is still 131.6 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-02-22 01:32:25,239 INFO L168 Benchmark]: CACSL2BoogieTranslator took 323.53 ms. Allocated memory is still 158.3 MB. Free memory was 133.8 MB in the beginning and 124.7 MB in the end (delta: 9.2 MB). Peak memory consumption was 8.4 MB. Max. memory is 8.0 GB. [2021-02-22 01:32:25,243 INFO L168 Benchmark]: Boogie Preprocessor took 34.78 ms. Allocated memory is still 158.3 MB. Free memory was 124.7 MB in the beginning and 123.2 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-02-22 01:32:25,249 INFO L168 Benchmark]: RCFGBuilder took 368.10 ms. Allocated memory is still 158.3 MB. Free memory was 123.2 MB in the beginning and 110.3 MB in the end (delta: 12.9 MB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 GB. [2021-02-22 01:32:25,249 INFO L168 Benchmark]: TraceAbstraction took 1808.36 ms. Allocated memory was 158.3 MB in the beginning and 195.0 MB in the end (delta: 36.7 MB). Free memory was 109.8 MB in the beginning and 133.1 MB in the end (delta: -23.3 MB). Peak memory consumption was 14.0 MB. Max. memory is 8.0 GB. [2021-02-22 01:32:25,253 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 158.3 MB. Free memory is still 131.6 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 323.53 ms. Allocated memory is still 158.3 MB. Free memory was 133.8 MB in the beginning and 124.7 MB in the end (delta: 9.2 MB). Peak memory consumption was 8.4 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 34.78 ms. Allocated memory is still 158.3 MB. Free memory was 124.7 MB in the beginning and 123.2 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 368.10 ms. Allocated memory is still 158.3 MB. Free memory was 123.2 MB in the beginning and 110.3 MB in the end (delta: 12.9 MB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 GB. * TraceAbstraction took 1808.36 ms. Allocated memory was 158.3 MB in the beginning and 195.0 MB in the end (delta: 36.7 MB). Free memory was 109.8 MB in the beginning and 133.1 MB in the end (delta: -23.3 MB). Peak memory consumption was 14.0 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 8]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: unable to decide satisfiability of path constraint. Possible FailurePath: [L14] unsigned int y; [L16] y = 1U [L18] COND TRUE 1 [L20] y = y +2U*__VERIFIER_nondet_uint() [L23] CALL __VERIFIER_assert (y!=0U) [L7] COND FALSE !(!(cond)) [L23] RET __VERIFIER_assert (y!=0U) [L18] COND TRUE 1 [L20] y = y +2U*__VERIFIER_nondet_uint() [L23] CALL __VERIFIER_assert (y!=0U) [L7] COND TRUE !(cond) [L8] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 33 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNKNOWN, OverallTime: 1.7s, OverallIterations: 2, TraceHistogramMax: 2, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 20 SDtfs, 24 SDslu, 54 SDs, 0 SdLazy, 56 SolverSat, 9 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=32occurred in iteration=1, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: No data available, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...