/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/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/loops-crafted-1/nested5-1.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-b7b32d2 [2021-02-19 18:02:36,963 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-02-19 18:02:36,965 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-02-19 18:02:36,999 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-02-19 18:02:37,000 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-02-19 18:02:37,001 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-02-19 18:02:37,003 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-02-19 18:02:37,005 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-02-19 18:02:37,007 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-02-19 18:02:37,009 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-02-19 18:02:37,010 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-02-19 18:02:37,011 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-02-19 18:02:37,012 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-02-19 18:02:37,013 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-02-19 18:02:37,014 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-02-19 18:02:37,016 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-02-19 18:02:37,017 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-02-19 18:02:37,032 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-02-19 18:02:37,035 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-02-19 18:02:37,039 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-02-19 18:02:37,043 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-02-19 18:02:37,048 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-02-19 18:02:37,050 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-02-19 18:02:37,051 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-02-19 18:02:37,055 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-02-19 18:02:37,072 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-02-19 18:02:37,073 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-02-19 18:02:37,075 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-02-19 18:02:37,076 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2021-02-19 18:02:37,133 INFO L113 SettingsManager]: Loading preferences was successful [2021-02-19 18:02:37,133 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-02-19 18:02:37,138 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-02-19 18:02:37,138 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-02-19 18:02:37,138 INFO L138 SettingsManager]: * Use SBE=true [2021-02-19 18:02:37,138 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-02-19 18:02:37,139 INFO L138 SettingsManager]: * sizeof long=4 [2021-02-19 18:02:37,139 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-02-19 18:02:37,139 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-02-19 18:02:37,139 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-02-19 18:02:37,140 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-02-19 18:02:37,141 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-02-19 18:02:37,141 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-02-19 18:02:37,141 INFO L138 SettingsManager]: * sizeof long double=12 [2021-02-19 18:02:37,141 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-02-19 18:02:37,141 INFO L138 SettingsManager]: * Use constant arrays=true [2021-02-19 18:02:37,142 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-02-19 18:02:37,142 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-02-19 18:02:37,142 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-02-19 18:02:37,142 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-02-19 18:02:37,143 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-19 18:02:37,143 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-02-19 18:02:37,143 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-02-19 18:02:37,143 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-02-19 18:02:37,143 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-02-19 18:02:37,144 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-02-19 18:02:37,144 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-02-19 18:02:37,144 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-02-19 18:02:37,144 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-02-19 18:02:37,591 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-02-19 18:02:37,625 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-02-19 18:02:37,628 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-02-19 18:02:37,629 INFO L271 PluginConnector]: Initializing CDTParser... [2021-02-19 18:02:37,630 INFO L275 PluginConnector]: CDTParser initialized [2021-02-19 18:02:37,631 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops-crafted-1/nested5-1.c [2021-02-19 18:02:37,703 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0f308c42e/159a8b6c2e574ca0af23be1d288bc270/FLAGb70b01eed [2021-02-19 18:02:38,331 INFO L306 CDTParser]: Found 1 translation units. [2021-02-19 18:02:38,332 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loops-crafted-1/nested5-1.c [2021-02-19 18:02:38,339 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0f308c42e/159a8b6c2e574ca0af23be1d288bc270/FLAGb70b01eed [2021-02-19 18:02:38,698 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0f308c42e/159a8b6c2e574ca0af23be1d288bc270 [2021-02-19 18:02:38,701 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-02-19 18:02:38,715 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-02-19 18:02:38,717 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-02-19 18:02:38,717 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-02-19 18:02:38,721 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-02-19 18:02:38,722 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.02 06:02:38" (1/1) ... [2021-02-19 18:02:38,723 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7b01e3a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 06:02:38, skipping insertion in model container [2021-02-19 18:02:38,724 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.02 06:02:38" (1/1) ... [2021-02-19 18:02:38,732 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-02-19 18:02:38,747 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-02-19 18:02:38,898 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loops-crafted-1/nested5-1.c[321,334] [2021-02-19 18:02:38,916 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-19 18:02:38,926 INFO L203 MainTranslator]: Completed pre-run [2021-02-19 18:02:38,940 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loops-crafted-1/nested5-1.c[321,334] [2021-02-19 18:02:38,946 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-19 18:02:38,964 INFO L208 MainTranslator]: Completed translation [2021-02-19 18:02:38,965 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 06:02:38 WrapperNode [2021-02-19 18:02:38,965 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-02-19 18:02:38,966 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-02-19 18:02:38,967 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-02-19 18:02:38,967 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-02-19 18:02:38,981 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 06:02:38" (1/1) ... [2021-02-19 18:02:38,982 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 06:02:38" (1/1) ... [2021-02-19 18:02:38,989 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 06:02:38" (1/1) ... [2021-02-19 18:02:38,989 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 06:02:38" (1/1) ... [2021-02-19 18:02:38,995 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 06:02:38" (1/1) ... [2021-02-19 18:02:39,001 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 06:02:38" (1/1) ... [2021-02-19 18:02:39,002 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 06:02:38" (1/1) ... [2021-02-19 18:02:39,005 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-02-19 18:02:39,006 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-02-19 18:02:39,006 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-02-19 18:02:39,006 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-02-19 18:02:39,007 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 06:02:38" (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 [2021-02-19 18:02:39,099 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-02-19 18:02:39,100 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-02-19 18:02:39,100 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-02-19 18:02:39,100 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-02-19 18:02:39,100 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-02-19 18:02:39,100 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-02-19 18:02:39,100 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-02-19 18:02:39,101 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-02-19 18:02:39,101 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-02-19 18:02:39,101 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-02-19 18:02:39,101 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-02-19 18:02:39,101 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-02-19 18:02:39,101 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-02-19 18:02:39,102 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-02-19 18:02:39,102 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-02-19 18:02:39,102 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-02-19 18:02:39,102 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-02-19 18:02:39,372 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-02-19 18:02:39,373 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2021-02-19 18:02:39,374 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.02 06:02:39 BoogieIcfgContainer [2021-02-19 18:02:39,374 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-02-19 18:02:39,376 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-02-19 18:02:39,376 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-02-19 18:02:39,380 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-02-19 18:02:39,381 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.02 06:02:38" (1/3) ... [2021-02-19 18:02:39,382 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21082cb0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.02 06:02:39, skipping insertion in model container [2021-02-19 18:02:39,382 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 06:02:38" (2/3) ... [2021-02-19 18:02:39,382 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21082cb0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.02 06:02:39, skipping insertion in model container [2021-02-19 18:02:39,382 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.02 06:02:39" (3/3) ... [2021-02-19 18:02:39,384 INFO L111 eAbstractionObserver]: Analyzing ICFG nested5-1.c [2021-02-19 18:02:39,391 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-02-19 18:02:39,409 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-02-19 18:02:39,442 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-02-19 18:02:39,506 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-02-19 18:02:39,507 INFO L377 AbstractCegarLoop]: Hoare is true [2021-02-19 18:02:39,507 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-02-19 18:02:39,510 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-02-19 18:02:39,510 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-02-19 18:02:39,510 INFO L381 AbstractCegarLoop]: Difference is false [2021-02-19 18:02:39,511 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-02-19 18:02:39,511 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-02-19 18:02:39,542 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states. [2021-02-19 18:02:39,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-02-19 18:02:39,550 INFO L414 BasicCegarLoop]: Found error trace [2021-02-19 18:02:39,551 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-19 18:02:39,551 INFO L428 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-19 18:02:39,560 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 18:02:39,560 INFO L82 PathProgramCache]: Analyzing trace with hash -531959740, now seen corresponding path program 1 times [2021-02-19 18:02:39,572 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 18:02:39,573 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1798198364] [2021-02-19 18:02:39,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 18:02:39,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:02:39,903 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:02:39,905 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:02:39,907 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:02:39,911 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:02:40,000 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-19 18:02:40,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:02:40,039 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:02:40,040 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:02:40,048 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 18:02:40,049 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1798198364] [2021-02-19 18:02:40,051 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-19 18:02:40,051 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-02-19 18:02:40,052 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1795929965] [2021-02-19 18:02:40,058 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-02-19 18:02:40,059 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 18:02:40,088 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-02-19 18:02:40,091 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-02-19 18:02:40,094 INFO L87 Difference]: Start difference. First operand 28 states. Second operand 3 states. [2021-02-19 18:02:40,198 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-19 18:02:40,199 INFO L93 Difference]: Finished difference Result 50 states and 71 transitions. [2021-02-19 18:02:40,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-02-19 18:02:40,202 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 15 [2021-02-19 18:02:40,202 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-19 18:02:40,214 INFO L225 Difference]: With dead ends: 50 [2021-02-19 18:02:40,215 INFO L226 Difference]: Without dead ends: 23 [2021-02-19 18:02:40,219 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-02-19 18:02:40,240 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2021-02-19 18:02:40,272 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2021-02-19 18:02:40,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2021-02-19 18:02:40,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 27 transitions. [2021-02-19 18:02:40,279 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 27 transitions. Word has length 15 [2021-02-19 18:02:40,280 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-19 18:02:40,280 INFO L480 AbstractCegarLoop]: Abstraction has 23 states and 27 transitions. [2021-02-19 18:02:40,280 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-02-19 18:02:40,281 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 27 transitions. [2021-02-19 18:02:40,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-02-19 18:02:40,281 INFO L414 BasicCegarLoop]: Found error trace [2021-02-19 18:02:40,282 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-19 18:02:40,282 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-02-19 18:02:40,282 INFO L428 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-19 18:02:40,283 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 18:02:40,283 INFO L82 PathProgramCache]: Analyzing trace with hash -537500866, now seen corresponding path program 1 times [2021-02-19 18:02:40,284 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 18:02:40,286 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1974758064] [2021-02-19 18:02:40,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 18:02:40,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:02:40,439 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:02:40,439 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:02:40,440 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:02:40,442 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 18:02:40,461 WARN L141 QuantifierPusher]: treesize reduction 1, result has 97.4 percent of original size [2021-02-19 18:02:40,468 WARN L147 QuantifierPusher]: treesize reduction 1, result has 97.4 percent of original size 38 [2021-02-19 18:02:40,473 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:02:40,473 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:02:40,501 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-19 18:02:40,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:02:40,541 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:02:40,541 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:02:40,543 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 18:02:40,543 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1974758064] [2021-02-19 18:02:40,543 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-19 18:02:40,543 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-02-19 18:02:40,544 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [148717031] [2021-02-19 18:02:40,547 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-02-19 18:02:40,548 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 18:02:40,548 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-02-19 18:02:40,549 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-02-19 18:02:40,549 INFO L87 Difference]: Start difference. First operand 23 states and 27 transitions. Second operand 4 states. [2021-02-19 18:02:40,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-19 18:02:40,710 INFO L93 Difference]: Finished difference Result 49 states and 61 transitions. [2021-02-19 18:02:40,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-02-19 18:02:40,711 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 15 [2021-02-19 18:02:40,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-19 18:02:40,713 INFO L225 Difference]: With dead ends: 49 [2021-02-19 18:02:40,713 INFO L226 Difference]: Without dead ends: 32 [2021-02-19 18:02:40,716 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-02-19 18:02:40,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2021-02-19 18:02:40,742 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 24. [2021-02-19 18:02:40,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2021-02-19 18:02:40,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 28 transitions. [2021-02-19 18:02:40,747 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 28 transitions. Word has length 15 [2021-02-19 18:02:40,748 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-19 18:02:40,748 INFO L480 AbstractCegarLoop]: Abstraction has 24 states and 28 transitions. [2021-02-19 18:02:40,749 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-02-19 18:02:40,749 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 28 transitions. [2021-02-19 18:02:40,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-02-19 18:02:40,752 INFO L414 BasicCegarLoop]: Found error trace [2021-02-19 18:02:40,752 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-19 18:02:40,753 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-02-19 18:02:40,753 INFO L428 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-19 18:02:40,755 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 18:02:40,755 INFO L82 PathProgramCache]: Analyzing trace with hash -509289700, now seen corresponding path program 1 times [2021-02-19 18:02:40,756 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 18:02:40,757 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [238148487] [2021-02-19 18:02:40,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 18:02:40,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:02:40,854 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:02:40,855 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:02:40,856 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:02:40,857 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 18:02:40,866 WARN L141 QuantifierPusher]: treesize reduction 1, result has 95.8 percent of original size [2021-02-19 18:02:40,870 WARN L147 QuantifierPusher]: treesize reduction 1, result has 95.8 percent of original size 23 [2021-02-19 18:02:40,902 WARN L141 QuantifierPusher]: treesize reduction 21, result has 4.5 percent of original size [2021-02-19 18:02:40,903 WARN L147 QuantifierPusher]: treesize reduction 21, result has 4.5 percent of original size 1 [2021-02-19 18:02:40,904 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:02:40,904 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:02:40,954 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-19 18:02:40,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:02:40,983 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:02:40,984 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:02:40,987 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 18:02:40,988 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [238148487] [2021-02-19 18:02:40,988 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1985082708] [2021-02-19 18:02:40,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-02-19 18:02:41,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:02:41,066 INFO L263 TraceCheckSpWp]: Trace formula consists of 108 conjuncts, 5 conjunts are in the unsatisfiable core [2021-02-19 18:02:41,073 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-02-19 18:02:41,083 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:02:41,084 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:02:41,085 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:02:41,085 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:02:41,086 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:02:41,087 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:02:41,088 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:02:41,088 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:02:41,090 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:02:41,090 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:02:41,091 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:02:41,092 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:02:41,093 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:02:41,094 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:02:41,094 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:02:41,095 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:02:41,095 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:02:41,096 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:02:41,097 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:02:41,097 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:02:41,098 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:02:41,099 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:02:41,100 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:02:41,100 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:02:41,102 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:02:41,103 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:02:41,103 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:02:41,104 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:02:41,105 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:02:41,105 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:02:41,106 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:02:41,107 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:02:41,108 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:02:41,109 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:02:41,109 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:02:41,110 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:02:41,111 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:02:41,111 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:02:41,112 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:02:41,112 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:02:41,113 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:02:41,114 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:02:41,115 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:02:41,115 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:02:41,116 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:02:41,116 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:02:41,117 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:02:41,118 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:02:41,118 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:02:41,119 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:02:41,120 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:02:41,120 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:02:41,121 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:02:41,121 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:02:41,122 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:02:41,123 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:02:41,123 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:02:41,124 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:02:41,125 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:02:41,125 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:02:41,126 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:02:41,126 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:02:41,127 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:02:41,127 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:02:41,128 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:02:41,129 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:02:41,129 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:02:41,130 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:02:41,131 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:02:41,131 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:02:41,132 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:02:41,132 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:02:41,133 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:02:41,134 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 18:02:41,134 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:02:41,135 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 18:02:41,135 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:02:41,136 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 18:02:41,137 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:02:41,137 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 18:02:41,138 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:02:41,139 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 18:02:41,139 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:02:41,140 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 18:02:41,141 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:02:41,141 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 18:02:41,142 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:02:41,143 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 18:02:41,147 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:02:41,157 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-02-19 18:02:41,158 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:02:41,159 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 18:02:41,159 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:02:41,160 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 18:02:41,160 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:02:41,161 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 18:02:41,199 WARN L141 QuantifierPusher]: treesize reduction 1, result has 90.0 percent of original size [2021-02-19 18:02:41,200 WARN L147 QuantifierPusher]: treesize reduction 1, result has 90.0 percent of original size 9 [2021-02-19 18:02:41,201 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:02:41,202 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-02-19 18:02:41,203 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:02:41,203 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:02:41,204 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:02:41,204 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:02:41,205 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:02:41,205 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:02:41,206 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:02:41,206 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:02:41,207 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:02:41,207 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:02:41,208 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:02:41,208 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:02:41,209 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:02:41,209 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:02:41,210 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:02:41,210 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:02:41,211 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:02:41,211 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:02:41,212 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:02:41,212 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:02:41,213 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:02:41,213 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:02:41,214 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:02:41,214 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:02:41,215 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 18:02:41,216 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-02-19 18:02:41,216 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4] total 6 [2021-02-19 18:02:41,216 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1775115377] [2021-02-19 18:02:41,217 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-02-19 18:02:41,217 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 18:02:41,217 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-02-19 18:02:41,218 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-02-19 18:02:41,218 INFO L87 Difference]: Start difference. First operand 24 states and 28 transitions. Second operand 6 states. [2021-02-19 18:02:41,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-19 18:02:41,385 INFO L93 Difference]: Finished difference Result 52 states and 64 transitions. [2021-02-19 18:02:41,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-02-19 18:02:41,385 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 17 [2021-02-19 18:02:41,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-19 18:02:41,386 INFO L225 Difference]: With dead ends: 52 [2021-02-19 18:02:41,386 INFO L226 Difference]: Without dead ends: 34 [2021-02-19 18:02:41,387 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2021-02-19 18:02:41,388 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2021-02-19 18:02:41,394 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 26. [2021-02-19 18:02:41,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2021-02-19 18:02:41,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 30 transitions. [2021-02-19 18:02:41,396 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 30 transitions. Word has length 17 [2021-02-19 18:02:41,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-19 18:02:41,396 INFO L480 AbstractCegarLoop]: Abstraction has 26 states and 30 transitions. [2021-02-19 18:02:41,396 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2021-02-19 18:02:41,396 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 30 transitions. [2021-02-19 18:02:41,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-02-19 18:02:41,397 INFO L414 BasicCegarLoop]: Found error trace [2021-02-19 18:02:41,397 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-19 18:02:41,611 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2021-02-19 18:02:41,612 INFO L428 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-19 18:02:41,613 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 18:02:41,613 INFO L82 PathProgramCache]: Analyzing trace with hash 831837050, now seen corresponding path program 2 times [2021-02-19 18:02:41,614 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 18:02:41,614 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1801188070] [2021-02-19 18:02:41,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 18:02:41,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:02:41,650 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:02:41,650 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:02:41,651 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:02:41,651 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 18:02:41,655 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:02:41,656 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-19 18:02:41,664 WARN L141 QuantifierPusher]: treesize reduction 1, result has 95.8 percent of original size [2021-02-19 18:02:41,665 WARN L147 QuantifierPusher]: treesize reduction 1, result has 95.8 percent of original size 23 [2021-02-19 18:02:41,691 WARN L141 QuantifierPusher]: treesize reduction 21, result has 4.5 percent of original size [2021-02-19 18:02:41,691 WARN L147 QuantifierPusher]: treesize reduction 21, result has 4.5 percent of original size 1 [2021-02-19 18:02:41,692 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:02:41,693 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:02:41,720 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-19 18:02:41,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:02:41,730 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:02:41,731 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:02:41,732 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 18:02:41,733 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1801188070] [2021-02-19 18:02:41,733 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [262461443] [2021-02-19 18:02:41,733 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-02-19 18:02:41,788 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-02-19 18:02:41,788 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-02-19 18:02:41,789 INFO L263 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 7 conjunts are in the unsatisfiable core [2021-02-19 18:02:41,792 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-02-19 18:02:41,794 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:02:41,794 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:02:41,795 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:02:41,795 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:02:41,796 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:02:41,796 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:02:41,796 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:02:41,797 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:02:41,798 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:02:41,799 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:02:41,799 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:02:41,800 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:02:41,800 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:02:41,801 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:02:41,801 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:02:41,802 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:02:41,802 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:02:41,803 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:02:41,803 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:02:41,803 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:02:41,804 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:02:41,808 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:02:41,809 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:02:41,809 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:02:41,810 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:02:41,815 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:02:41,816 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:02:41,817 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:02:41,817 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:02:41,819 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:02:41,819 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:02:41,820 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:02:41,820 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:02:41,821 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:02:41,822 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:02:41,822 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:02:41,826 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:02:41,826 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:02:41,827 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:02:41,827 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:02:41,828 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:02:41,828 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:02:41,828 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:02:41,829 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:02:41,830 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:02:41,831 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:02:41,831 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:02:41,832 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:02:41,832 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:02:41,833 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:02:41,833 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:02:41,833 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:02:41,834 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:02:41,834 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:02:41,835 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:02:41,835 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:02:41,836 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:02:41,836 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:02:41,837 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:02:41,838 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:02:41,838 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:02:41,839 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:02:41,840 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:02:41,840 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:02:41,841 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:02:41,842 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:02:41,842 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:02:41,843 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:02:41,844 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:02:41,844 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:02:41,845 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:02:41,845 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:02:41,846 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:02:41,846 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 18:02:41,847 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:02:41,854 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 18:02:41,855 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:02:41,856 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 18:02:41,856 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:02:41,857 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 18:02:41,857 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:02:41,858 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 18:02:41,858 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:02:41,859 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 18:02:41,860 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:02:41,863 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 18:02:41,863 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:02:41,864 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 18:02:41,865 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:02:41,873 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-02-19 18:02:41,875 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:02:41,875 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 18:02:41,876 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:02:41,876 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 18:02:41,877 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:02:41,877 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 18:02:41,881 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:02:41,882 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-19 18:02:41,883 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:02:41,885 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-19 18:02:41,885 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:02:41,887 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-19 18:02:41,888 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:02:41,892 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-19 18:02:41,896 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:02:41,900 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-02-19 18:02:41,901 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:02:41,901 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-19 18:02:41,902 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:02:41,902 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-19 18:02:41,903 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:02:41,904 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-19 18:02:41,919 WARN L141 QuantifierPusher]: treesize reduction 1, result has 92.3 percent of original size [2021-02-19 18:02:41,921 WARN L147 QuantifierPusher]: treesize reduction 1, result has 92.3 percent of original size 12 [2021-02-19 18:02:41,925 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:02:41,945 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-19 18:02:41,948 WARN L141 QuantifierPusher]: treesize reduction 3, result has 87.5 percent of original size [2021-02-19 18:02:41,949 WARN L147 QuantifierPusher]: treesize reduction 3, result has 87.5 percent of original size 21 [2021-02-19 18:02:41,951 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-02-19 18:02:41,953 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:02:41,967 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-02-19 18:02:41,967 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:02:41,968 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:02:41,968 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:02:41,969 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:02:41,969 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:02:41,970 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:02:41,970 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:02:41,971 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:02:41,971 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:02:41,971 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:02:41,972 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:02:41,972 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:02:41,973 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:02:41,973 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:02:41,973 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:02:41,974 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:02:41,974 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:02:41,975 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:02:41,975 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:02:41,976 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:02:41,976 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:02:41,976 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:02:41,977 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 18:02:41,978 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-02-19 18:02:41,978 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5] total 7 [2021-02-19 18:02:41,978 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1616690817] [2021-02-19 18:02:41,980 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-02-19 18:02:41,980 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 18:02:41,981 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-02-19 18:02:41,981 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-02-19 18:02:41,981 INFO L87 Difference]: Start difference. First operand 26 states and 30 transitions. Second operand 7 states. [2021-02-19 18:02:42,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-19 18:02:42,211 INFO L93 Difference]: Finished difference Result 56 states and 68 transitions. [2021-02-19 18:02:42,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-02-19 18:02:42,211 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 19 [2021-02-19 18:02:42,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-19 18:02:42,212 INFO L225 Difference]: With dead ends: 56 [2021-02-19 18:02:42,213 INFO L226 Difference]: Without dead ends: 36 [2021-02-19 18:02:42,213 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 21 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2021-02-19 18:02:42,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2021-02-19 18:02:42,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 28. [2021-02-19 18:02:42,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2021-02-19 18:02:42,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 32 transitions. [2021-02-19 18:02:42,222 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 32 transitions. Word has length 19 [2021-02-19 18:02:42,222 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-19 18:02:42,222 INFO L480 AbstractCegarLoop]: Abstraction has 28 states and 32 transitions. [2021-02-19 18:02:42,222 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2021-02-19 18:02:42,223 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 32 transitions. [2021-02-19 18:02:42,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-02-19 18:02:42,223 INFO L414 BasicCegarLoop]: Found error trace [2021-02-19 18:02:42,224 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-19 18:02:42,436 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-02-19 18:02:42,437 INFO L428 AbstractCegarLoop]: === Iteration 5 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-19 18:02:42,438 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 18:02:42,438 INFO L82 PathProgramCache]: Analyzing trace with hash 1164455000, now seen corresponding path program 3 times [2021-02-19 18:02:42,438 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 18:02:42,439 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1446013209] [2021-02-19 18:02:42,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 18:02:42,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:02:42,477 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:02:42,477 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:02:42,478 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:02:42,478 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-19 18:02:42,482 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:02:42,483 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-19 18:02:42,490 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:02:42,491 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-19 18:02:42,500 WARN L141 QuantifierPusher]: treesize reduction 1, result has 95.8 percent of original size [2021-02-19 18:02:42,501 WARN L147 QuantifierPusher]: treesize reduction 1, result has 95.8 percent of original size 23 [2021-02-19 18:02:42,524 WARN L141 QuantifierPusher]: treesize reduction 21, result has 4.5 percent of original size [2021-02-19 18:02:42,524 WARN L147 QuantifierPusher]: treesize reduction 21, result has 4.5 percent of original size 1 [2021-02-19 18:02:42,525 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:02:42,525 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:02:42,549 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-19 18:02:42,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 18:02:42,556 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:02:42,557 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:02:42,558 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 18:02:42,559 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1446013209] [2021-02-19 18:02:42,559 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [558759948] [2021-02-19 18:02:42,559 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-02-19 18:02:42,647 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2021-02-19 18:02:42,647 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-02-19 18:02:42,648 INFO L263 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 10 conjunts are in the unsatisfiable core [2021-02-19 18:02:42,650 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-02-19 18:02:42,650 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:02:42,651 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:02:42,651 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:02:42,652 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:02:42,652 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:02:42,652 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:02:42,653 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:02:42,653 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:02:42,654 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:02:42,654 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:02:42,654 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:02:42,655 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:02:42,655 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:02:42,655 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:02:42,656 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:02:42,656 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:02:42,656 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:02:42,657 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:02:42,657 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:02:42,658 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:02:42,658 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:02:42,658 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:02:42,659 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:02:42,659 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:02:42,660 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:02:42,660 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:02:42,661 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:02:42,661 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:02:42,662 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:02:42,662 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:02:42,662 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:02:42,663 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:02:42,664 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:02:42,664 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:02:42,665 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:02:42,665 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:02:42,666 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:02:42,666 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:02:42,666 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:02:42,667 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:02:42,667 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:02:42,668 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:02:42,668 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:02:42,668 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:02:42,669 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:02:42,670 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:02:42,670 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:02:42,671 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:02:42,672 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:02:42,672 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:02:42,673 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:02:42,673 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:02:42,673 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:02:42,675 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:02:42,677 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:02:42,677 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:02:42,678 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:02:42,678 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:02:42,680 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:02:42,680 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:02:42,682 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:02:42,682 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:02:42,683 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:02:42,683 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:02:42,684 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:02:42,684 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:02:42,684 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:02:42,685 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:02:42,685 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:02:42,685 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:02:42,686 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:02:42,686 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:02:42,687 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:02:42,687 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:02:42,687 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:02:42,688 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:02:42,688 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:02:42,688 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:02:42,689 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:02:42,689 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:02:42,689 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:02:42,690 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:02:42,690 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:02:42,690 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:02:42,691 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:02:42,691 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:02:42,692 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:02:42,692 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:02:42,692 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:02:42,693 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:02:42,693 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:02:42,693 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:02:42,694 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:02:42,694 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:02:42,695 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:02:42,695 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:02:42,695 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:02:42,696 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:02:42,696 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:02:42,696 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:02:42,697 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:02:42,697 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:02:42,698 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:02:42,698 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:02:42,698 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:02:42,699 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:02:42,699 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:02:42,699 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:02:42,700 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:02:42,700 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:02:42,700 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:02:42,701 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:02:42,701 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:02:42,702 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-19 18:02:42,702 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:02:42,703 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-19 18:02:42,703 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:02:42,703 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-19 18:02:42,704 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:02:42,704 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-19 18:02:42,714 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:02:42,716 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-02-19 18:02:42,717 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:02:42,717 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-19 18:02:42,717 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:02:42,718 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-19 18:02:42,718 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:02:42,718 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-19 18:02:42,730 WARN L141 QuantifierPusher]: treesize reduction 1, result has 92.9 percent of original size [2021-02-19 18:02:42,731 WARN L147 QuantifierPusher]: treesize reduction 1, result has 92.9 percent of original size 13 [2021-02-19 18:02:42,732 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:02:42,732 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-02-19 18:02:42,733 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:02:42,733 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-02-19 18:02:42,734 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:02:42,735 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-02-19 18:02:42,756 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:02:42,785 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-19 18:02:42,786 WARN L141 QuantifierPusher]: treesize reduction 22, result has 67.2 percent of original size [2021-02-19 18:02:42,787 WARN L147 QuantifierPusher]: treesize reduction 22, result has 67.2 percent of original size 45 [2021-02-19 18:02:42,788 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-02-19 18:02:42,790 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:02:42,793 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-19 18:02:42,794 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:02:42,794 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-02-19 18:02:42,796 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-02-19 18:02:42,797 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:02:42,803 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-02-19 18:02:42,805 WARN L141 QuantifierPusher]: treesize reduction -2, result has 102.5 percent of original size [2021-02-19 18:02:42,806 WARN L147 QuantifierPusher]: treesize reduction -2, result has 102.5 percent of original size 82 [2021-02-19 18:02:43,019 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:02:43,020 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-02-19 18:02:43,021 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:02:43,023 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-02-19 18:02:43,025 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:02:43,025 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-02-19 18:02:43,026 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:02:43,027 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-02-19 18:02:43,178 WARN L141 QuantifierPusher]: treesize reduction 6, result has 88.2 percent of original size [2021-02-19 18:02:43,180 WARN L147 QuantifierPusher]: treesize reduction 6, result has 88.2 percent of original size 45 [2021-02-19 18:02:43,183 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:02:43,187 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-02-19 18:02:43,188 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:02:43,188 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:02:43,188 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 18:02:43,189 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-19 18:02:43,190 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-02-19 18:02:43,191 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-02-19 18:02:43,191 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [7] total 12 [2021-02-19 18:02:43,192 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [909990699] [2021-02-19 18:02:43,192 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-02-19 18:02:43,192 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 18:02:43,193 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-02-19 18:02:43,193 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2021-02-19 18:02:43,193 INFO L87 Difference]: Start difference. First operand 28 states and 32 transitions. Second operand 7 states. [2021-02-19 18:02:44,146 WARN L202 SmtUtils]: Spent 429.00 ms on a formula simplification that was a NOOP. DAG size: 55 [2021-02-19 18:02:44,297 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-19 18:02:44,297 INFO L93 Difference]: Finished difference Result 35 states and 42 transitions. [2021-02-19 18:02:44,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-02-19 18:02:44,298 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 21 [2021-02-19 18:02:44,298 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-19 18:02:44,298 INFO L225 Difference]: With dead ends: 35 [2021-02-19 18:02:44,298 INFO L226 Difference]: Without dead ends: 0 [2021-02-19 18:02:44,299 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=41, Invalid=141, Unknown=0, NotChecked=0, Total=182 [2021-02-19 18:02:44,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-02-19 18:02:44,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-02-19 18:02:44,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2021-02-19 18:02:44,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-02-19 18:02:44,300 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 21 [2021-02-19 18:02:44,300 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-19 18:02:44,300 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-02-19 18:02:44,300 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2021-02-19 18:02:44,301 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-02-19 18:02:44,301 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-02-19 18:02:44,511 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-02-19 18:02:44,515 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-02-19 18:02:44,952 INFO L189 CegarLoopUtils]: For program point reach_errorEXIT(line 3) no Hoare annotation was computed. [2021-02-19 18:02:44,952 INFO L189 CegarLoopUtils]: For program point reach_errorENTRY(line 3) no Hoare annotation was computed. [2021-02-19 18:02:44,952 INFO L189 CegarLoopUtils]: For program point reach_errorFINAL(line 3) no Hoare annotation was computed. [2021-02-19 18:02:44,952 INFO L189 CegarLoopUtils]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2021-02-19 18:02:44,953 INFO L185 CegarLoopUtils]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |#t~string5.base| |old(#t~string5.base)|) (= |#t~string5.offset| |old(#t~string5.offset)|) (= |old(#length)| |#length|) (= |#t~string6.base| |old(#t~string6.base)|) (= |#t~string6.offset| |old(#t~string6.offset)|) (= |#t~string4.base| |old(#t~string4.base)|) (= |#NULL.base| |old(#NULL.base)|) (= |#t~string4.offset| |old(#t~string4.offset)|) (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#valid)| |#valid|)) [2021-02-19 18:02:44,953 INFO L189 CegarLoopUtils]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2021-02-19 18:02:44,953 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-02-19 18:02:44,953 INFO L192 CegarLoopUtils]: At program point L-1(line -1) the Hoare annotation is: true [2021-02-19 18:02:44,953 INFO L192 CegarLoopUtils]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2021-02-19 18:02:44,953 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-02-19 18:02:44,954 INFO L189 CegarLoopUtils]: For program point mainEXIT(lines 12 27) no Hoare annotation was computed. [2021-02-19 18:02:44,954 INFO L189 CegarLoopUtils]: For program point L23-2(line 23) no Hoare annotation was computed. [2021-02-19 18:02:44,954 INFO L185 CegarLoopUtils]: At program point L23-3(line 23) the Hoare annotation is: (or (= main_~v~0 0) (< (mod (+ main_~v~0 4294967295) 4294967296) 10)) [2021-02-19 18:02:44,954 INFO L185 CegarLoopUtils]: At program point L23-4(line 23) the Hoare annotation is: (and (< (mod (+ main_~v~0 4294967295) 4294967296) 10) (<= 10 (mod main_~v~0 4294967296))) [2021-02-19 18:02:44,954 INFO L189 CegarLoopUtils]: For program point L19-2(lines 19 25) no Hoare annotation was computed. [2021-02-19 18:02:44,954 INFO L185 CegarLoopUtils]: At program point L19-3(lines 19 25) the Hoare annotation is: (or (< (mod (+ main_~v~0 4294967295) 4294967296) 10) (< (mod main_~v~0 4294967296) 10)) [2021-02-19 18:02:44,954 INFO L189 CegarLoopUtils]: For program point L19-4(lines 19 25) no Hoare annotation was computed. [2021-02-19 18:02:44,955 INFO L189 CegarLoopUtils]: For program point L24(lines 22 25) no Hoare annotation was computed. [2021-02-19 18:02:44,956 INFO L189 CegarLoopUtils]: For program point L20-2(lines 20 25) no Hoare annotation was computed. [2021-02-19 18:02:44,956 INFO L185 CegarLoopUtils]: At program point L20-3(lines 20 25) the Hoare annotation is: (or (< (mod (+ main_~v~0 4294967295) 4294967296) 10) (< (mod main_~v~0 4294967296) 10)) [2021-02-19 18:02:44,956 INFO L189 CegarLoopUtils]: For program point L21-2(lines 21 25) no Hoare annotation was computed. [2021-02-19 18:02:44,956 INFO L185 CegarLoopUtils]: At program point L21-3(lines 21 25) the Hoare annotation is: (or (< (mod (+ main_~v~0 4294967295) 4294967296) 10) (< (mod main_~v~0 4294967296) 10)) [2021-02-19 18:02:44,957 INFO L189 CegarLoopUtils]: For program point mainFINAL(lines 12 27) no Hoare annotation was computed. [2021-02-19 18:02:44,957 INFO L192 CegarLoopUtils]: At program point mainENTRY(lines 12 27) the Hoare annotation is: true [2021-02-19 18:02:44,957 INFO L185 CegarLoopUtils]: At program point L22-2(lines 22 25) the Hoare annotation is: (or (< (mod (+ main_~v~0 4294967295) 4294967296) 10) (< (mod main_~v~0 4294967296) 10)) [2021-02-19 18:02:44,957 INFO L192 CegarLoopUtils]: At program point __VERIFIER_assertENTRY(lines 5 10) the Hoare annotation is: true [2021-02-19 18:02:44,957 INFO L189 CegarLoopUtils]: For program point __VERIFIER_assertEXIT(lines 5 10) no Hoare annotation was computed. [2021-02-19 18:02:44,957 INFO L189 CegarLoopUtils]: For program point L7(line 7) no Hoare annotation was computed. [2021-02-19 18:02:44,957 INFO L189 CegarLoopUtils]: For program point L6(lines 6 8) no Hoare annotation was computed. [2021-02-19 18:02:44,957 INFO L189 CegarLoopUtils]: For program point L6-2(lines 5 10) no Hoare annotation was computed. [2021-02-19 18:02:44,958 INFO L189 CegarLoopUtils]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 7) no Hoare annotation was computed. [2021-02-19 18:02:44,982 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.02 06:02:44 BoogieIcfgContainer [2021-02-19 18:02:44,982 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-02-19 18:02:44,983 INFO L168 Benchmark]: Toolchain (without parser) took 6279.83 ms. Allocated memory was 152.0 MB in the beginning and 186.6 MB in the end (delta: 34.6 MB). Free memory was 127.4 MB in the beginning and 109.6 MB in the end (delta: 17.7 MB). Peak memory consumption was 99.7 MB. Max. memory is 8.0 GB. [2021-02-19 18:02:44,983 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 152.0 MB. Free memory is still 124.8 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-02-19 18:02:44,983 INFO L168 Benchmark]: CACSL2BoogieTranslator took 248.24 ms. Allocated memory is still 152.0 MB. Free memory was 126.3 MB in the beginning and 116.9 MB in the end (delta: 9.5 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. [2021-02-19 18:02:44,984 INFO L168 Benchmark]: Boogie Preprocessor took 38.55 ms. Allocated memory is still 152.0 MB. Free memory was 116.9 MB in the beginning and 115.4 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-02-19 18:02:44,990 INFO L168 Benchmark]: RCFGBuilder took 368.84 ms. Allocated memory is still 152.0 MB. Free memory was 115.4 MB in the beginning and 133.5 MB in the end (delta: -18.1 MB). Peak memory consumption was 16.5 MB. Max. memory is 8.0 GB. [2021-02-19 18:02:44,990 INFO L168 Benchmark]: TraceAbstraction took 5605.79 ms. Allocated memory was 152.0 MB in the beginning and 186.6 MB in the end (delta: 34.6 MB). Free memory was 133.5 MB in the beginning and 109.6 MB in the end (delta: 23.9 MB). Peak memory consumption was 105.1 MB. Max. memory is 8.0 GB. [2021-02-19 18:02:44,991 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 152.0 MB. Free memory is still 124.8 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 248.24 ms. Allocated memory is still 152.0 MB. Free memory was 126.3 MB in the beginning and 116.9 MB in the end (delta: 9.5 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 38.55 ms. Allocated memory is still 152.0 MB. Free memory was 116.9 MB in the beginning and 115.4 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 368.84 ms. Allocated memory is still 152.0 MB. Free memory was 115.4 MB in the beginning and 133.5 MB in the end (delta: -18.1 MB). Peak memory consumption was 16.5 MB. Max. memory is 8.0 GB. * TraceAbstraction took 5605.79 ms. Allocated memory was 152.0 MB in the beginning and 186.6 MB in the end (delta: 34.6 MB). Free memory was 133.5 MB in the beginning and 109.6 MB in the end (delta: 23.9 MB). Peak memory consumption was 105.1 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 7]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 20]: Loop Invariant Derived loop invariant: (v + 4294967295) % 4294967296 < 10 || v % 4294967296 < 10 - InvariantResult [Line: 21]: Loop Invariant Derived loop invariant: (v + 4294967295) % 4294967296 < 10 || v % 4294967296 < 10 - InvariantResult [Line: 23]: Loop Invariant Derived loop invariant: v == 0 || (v + 4294967295) % 4294967296 < 10 - InvariantResult [Line: 22]: Loop Invariant Derived loop invariant: (v + 4294967295) % 4294967296 < 10 || v % 4294967296 < 10 - InvariantResult [Line: 19]: Loop Invariant Derived loop invariant: (v + 4294967295) % 4294967296 < 10 || v % 4294967296 < 10 - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 31 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 5.0s, OverallIterations: 5, TraceHistogramMax: 3, AutomataDifference: 1.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.4s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 128 SDtfs, 189 SDslu, 132 SDs, 0 SdLazy, 224 SolverSat, 26 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 99 GetRequests, 67 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 1.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=28occurred in iteration=0, 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, 5 MinimizatonAttempts, 24 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 11 LocationsWithAnnotation, 15 PreInvPairs, 28 NumberOfFragments, 111 HoareAnnotationTreeSize, 15 FomulaSimplifications, 3547 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 11 FomulaSimplificationsInter, 523 FormulaSimplificationTreeSizeReductionInter, 0.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.6s InterpolantComputationTime, 144 NumberOfCodeBlocks, 142 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 136 ConstructedInterpolants, 0 QuantifiedInterpolants, 9104 SizeOfPredicates, 4 NumberOfNonLiveVariables, 330 ConjunctsInSsa, 22 ConjunctsInUnsatCore, 8 InterpolantComputations, 3 PerfectInterpolantSequences, 9/28 InterpolantCoveringCapability, 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 proved your program to be correct! Received shutdown request...