/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-POR-NewStatesSleep-NoLbe-Lockstep.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/bench/exp1x3.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-a47a088281b0b97d17910950432b7c5b5bc3adeb-a47a088 [2021-07-14 06:14:06,422 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-07-14 06:14:06,425 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-07-14 06:14:06,464 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-07-14 06:14:06,464 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-07-14 06:14:06,467 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-07-14 06:14:06,469 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-07-14 06:14:06,474 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-07-14 06:14:06,476 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-07-14 06:14:06,481 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-07-14 06:14:06,481 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-07-14 06:14:06,483 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-07-14 06:14:06,483 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-07-14 06:14:06,486 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-07-14 06:14:06,488 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-07-14 06:14:06,489 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-07-14 06:14:06,492 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-07-14 06:14:06,493 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-07-14 06:14:06,495 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-07-14 06:14:06,500 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-07-14 06:14:06,501 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-07-14 06:14:06,512 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-07-14 06:14:06,513 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-07-14 06:14:06,515 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-07-14 06:14:06,521 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-07-14 06:14:06,521 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-07-14 06:14:06,521 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-07-14 06:14:06,523 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-07-14 06:14:06,523 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-07-14 06:14:06,524 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-07-14 06:14:06,524 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-07-14 06:14:06,525 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-07-14 06:14:06,526 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-07-14 06:14:06,527 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-07-14 06:14:06,527 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-07-14 06:14:06,528 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-07-14 06:14:06,528 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-07-14 06:14:06,528 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-07-14 06:14:06,528 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-07-14 06:14:06,529 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-07-14 06:14:06,530 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-07-14 06:14:06,531 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-POR-NewStatesSleep-NoLbe-Lockstep.epf [2021-07-14 06:14:06,567 INFO L113 SettingsManager]: Loading preferences was successful [2021-07-14 06:14:06,567 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-07-14 06:14:06,568 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-07-14 06:14:06,568 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-07-14 06:14:06,570 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-07-14 06:14:06,570 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-07-14 06:14:06,570 INFO L138 SettingsManager]: * Use SBE=true [2021-07-14 06:14:06,571 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-07-14 06:14:06,571 INFO L138 SettingsManager]: * sizeof long=4 [2021-07-14 06:14:06,571 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-07-14 06:14:06,572 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-07-14 06:14:06,572 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-07-14 06:14:06,572 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-07-14 06:14:06,572 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-07-14 06:14:06,573 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-07-14 06:14:06,573 INFO L138 SettingsManager]: * sizeof long double=12 [2021-07-14 06:14:06,573 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-07-14 06:14:06,573 INFO L138 SettingsManager]: * Use constant arrays=true [2021-07-14 06:14:06,573 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-07-14 06:14:06,573 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-07-14 06:14:06,573 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-07-14 06:14:06,573 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-07-14 06:14:06,574 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-07-14 06:14:06,574 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-07-14 06:14:06,574 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-07-14 06:14:06,574 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-07-14 06:14:06,574 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-07-14 06:14:06,574 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-07-14 06:14:06,574 INFO L138 SettingsManager]: * DFS Order used in POR=PSEUDO_LOCKSTEP [2021-07-14 06:14:06,575 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-07-14 06:14:06,575 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-07-14 06:14:06,575 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-07-14 06:14:06,575 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-07-14 06:14:06,575 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_NEW_STATES [2021-07-14 06:14:06,575 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-07-14 06:14:06,917 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-07-14 06:14:06,943 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-07-14 06:14:06,945 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-07-14 06:14:06,946 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-07-14 06:14:06,948 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-07-14 06:14:06,949 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/bench/exp1x3.wvr.bpl [2021-07-14 06:14:06,949 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/bench/exp1x3.wvr.bpl' [2021-07-14 06:14:06,971 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-07-14 06:14:06,973 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-07-14 06:14:06,974 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-07-14 06:14:06,974 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-07-14 06:14:06,974 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-07-14 06:14:06,986 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "exp1x3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 06:14:06" (1/1) ... [2021-07-14 06:14:06,992 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "exp1x3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 06:14:06" (1/1) ... [2021-07-14 06:14:06,998 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-07-14 06:14:07,000 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-07-14 06:14:07,000 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-07-14 06:14:07,000 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-07-14 06:14:07,007 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "exp1x3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 06:14:06" (1/1) ... [2021-07-14 06:14:07,007 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "exp1x3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 06:14:06" (1/1) ... [2021-07-14 06:14:07,007 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "exp1x3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 06:14:06" (1/1) ... [2021-07-14 06:14:07,008 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "exp1x3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 06:14:06" (1/1) ... [2021-07-14 06:14:07,009 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "exp1x3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 06:14:06" (1/1) ... [2021-07-14 06:14:07,011 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "exp1x3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 06:14:06" (1/1) ... [2021-07-14 06:14:07,011 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "exp1x3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 06:14:06" (1/1) ... [2021-07-14 06:14:07,013 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-07-14 06:14:07,014 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-07-14 06:14:07,014 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-07-14 06:14:07,014 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-07-14 06:14:07,017 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "exp1x3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 06:14:06" (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 [2021-07-14 06:14:07,084 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2021-07-14 06:14:07,084 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-07-14 06:14:07,084 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-07-14 06:14:07,085 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2021-07-14 06:14:07,085 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-07-14 06:14:07,085 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-07-14 06:14:07,085 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-07-14 06:14:07,086 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-07-14 06:14:07,087 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-07-14 06:14:07,087 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-07-14 06:14:07,207 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-07-14 06:14:07,207 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-07-14 06:14:07,209 INFO L202 PluginConnector]: Adding new model exp1x3.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 06:14:07 BoogieIcfgContainer [2021-07-14 06:14:07,209 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-07-14 06:14:07,211 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-07-14 06:14:07,211 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-07-14 06:14:07,213 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-07-14 06:14:07,214 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "exp1x3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 06:14:06" (1/2) ... [2021-07-14 06:14:07,215 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@34f3b73a and model type exp1x3.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.07 06:14:07, skipping insertion in model container [2021-07-14 06:14:07,215 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "exp1x3.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 06:14:07" (2/2) ... [2021-07-14 06:14:07,216 INFO L111 eAbstractionObserver]: Analyzing ICFG exp1x3.wvr.bpl [2021-07-14 06:14:07,221 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-07-14 06:14:07,221 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-07-14 06:14:07,222 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-07-14 06:14:07,222 INFO L474 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-07-14 06:14:07,250 INFO L149 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2021-07-14 06:14:07,270 INFO L255 AbstractCegarLoop]: Starting to check reachability of 3 error locations. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-07-14 06:14:07,328 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-07-14 06:14:07,329 INFO L379 AbstractCegarLoop]: Hoare is false [2021-07-14 06:14:07,329 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-07-14 06:14:07,329 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-07-14 06:14:07,329 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-07-14 06:14:07,329 INFO L383 AbstractCegarLoop]: Difference is false [2021-07-14 06:14:07,329 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-07-14 06:14:07,329 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-07-14 06:14:07,359 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 06:14:07,364 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 06:14:07,365 INFO L82 PathProgramCache]: Analyzing trace with hash -859420142, now seen corresponding path program 1 times [2021-07-14 06:14:07,371 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 06:14:07,371 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1425827689] [2021-07-14 06:14:07,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 06:14:07,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 06:14:07,646 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 06:14:07,647 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 06:14:07,647 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1425827689] [2021-07-14 06:14:07,647 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1425827689] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 06:14:07,648 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1245390035] [2021-07-14 06:14:07,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 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 [2021-07-14 06:14:07,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 06:14:07,764 INFO L263 TraceCheckSpWp]: Trace formula consists of 29 conjuncts, 7 conjunts are in the unsatisfiable core [2021-07-14 06:14:07,768 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 06:14:07,958 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 06:14:07,958 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1245390035] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 06:14:07,958 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 06:14:07,959 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 4] total 4 [2021-07-14 06:14:07,959 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [29181846] [2021-07-14 06:14:07,963 INFO L462 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-07-14 06:14:07,963 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 06:14:07,972 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-07-14 06:14:07,974 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-07-14 06:14:07,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 06:14:07,975 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 06:14:07,976 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 4.2) internal successors, (21), 4 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 06:14:07,977 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 06:14:08,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 06:14:08,233 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2021-07-14 06:14:08,233 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 06:14:08,234 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 06:14:08,234 INFO L82 PathProgramCache]: Analyzing trace with hash 1630128532, now seen corresponding path program 2 times [2021-07-14 06:14:08,234 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 06:14:08,234 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2090172774] [2021-07-14 06:14:08,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 06:14:08,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 06:14:08,326 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 06:14:08,327 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 06:14:08,327 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2090172774] [2021-07-14 06:14:08,327 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2090172774] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 06:14:08,327 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [736271400] [2021-07-14 06:14:08,327 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 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 [2021-07-14 06:14:08,370 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-07-14 06:14:08,370 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 06:14:08,372 INFO L263 TraceCheckSpWp]: Trace formula consists of 32 conjuncts, 5 conjunts are in the unsatisfiable core [2021-07-14 06:14:08,373 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 06:14:08,528 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 06:14:08,528 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [736271400] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 06:14:08,528 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 06:14:08,528 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2021-07-14 06:14:08,529 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1267111189] [2021-07-14 06:14:08,529 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-07-14 06:14:08,530 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 06:14:08,530 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-07-14 06:14:08,530 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-07-14 06:14:08,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 06:14:08,531 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 06:14:08,531 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 3.0) internal successors, (24), 7 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 06:14:08,531 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-14 06:14:08,531 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 06:14:08,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 06:14:08,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-07-14 06:14:08,946 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 06:14:08,947 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 06:14:08,947 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 06:14:08,948 INFO L82 PathProgramCache]: Analyzing trace with hash 354642070, now seen corresponding path program 3 times [2021-07-14 06:14:08,948 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 06:14:08,948 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [793182249] [2021-07-14 06:14:08,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 06:14:08,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 06:14:09,015 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 06:14:09,016 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 06:14:09,016 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [793182249] [2021-07-14 06:14:09,016 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [793182249] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 06:14:09,016 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [635596330] [2021-07-14 06:14:09,016 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 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 06:14:09,083 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2021-07-14 06:14:09,084 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 06:14:09,084 INFO L263 TraceCheckSpWp]: Trace formula consists of 35 conjuncts, 11 conjunts are in the unsatisfiable core [2021-07-14 06:14:09,085 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 06:14:09,252 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 06:14:09,253 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [635596330] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 06:14:09,253 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 06:14:09,253 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 6] total 6 [2021-07-14 06:14:09,253 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [845134286] [2021-07-14 06:14:09,254 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-07-14 06:14:09,254 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 06:14:09,254 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-07-14 06:14:09,255 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-07-14 06:14:09,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 06:14:09,255 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 06:14:09,255 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 3.857142857142857) internal successors, (27), 6 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 06:14:09,255 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-14 06:14:09,255 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-07-14 06:14:09,255 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 06:14:09,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 06:14:09,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-07-14 06:14:09,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-14 06:14:09,545 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 06:14:09,545 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 06:14:09,546 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 06:14:09,546 INFO L82 PathProgramCache]: Analyzing trace with hash -992520424, now seen corresponding path program 4 times [2021-07-14 06:14:09,546 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 06:14:09,546 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1911988618] [2021-07-14 06:14:09,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 06:14:09,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 06:14:09,613 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 06:14:09,613 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 06:14:09,614 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1911988618] [2021-07-14 06:14:09,614 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1911988618] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 06:14:09,614 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [184171094] [2021-07-14 06:14:09,615 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 06:14:09,657 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-07-14 06:14:09,657 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 06:14:09,660 INFO L263 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 7 conjunts are in the unsatisfiable core [2021-07-14 06:14:09,661 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 06:14:09,795 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 06:14:09,796 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [184171094] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 06:14:09,796 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 06:14:09,796 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 10 [2021-07-14 06:14:09,796 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1388173773] [2021-07-14 06:14:09,796 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-07-14 06:14:09,797 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 06:14:09,797 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-07-14 06:14:09,797 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2021-07-14 06:14:09,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 06:14:09,798 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 06:14:09,798 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 2.727272727272727) internal successors, (30), 10 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 06:14:09,798 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-14 06:14:09,798 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-07-14 06:14:09,798 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-14 06:14:09,798 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 06:14:10,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 06:14:10,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-07-14 06:14:10,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-14 06:14:10,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-14 06:14:10,316 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,6 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 06:14:10,317 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 06:14:10,318 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 06:14:10,318 INFO L82 PathProgramCache]: Analyzing trace with hash 1134798106, now seen corresponding path program 5 times [2021-07-14 06:14:10,318 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 06:14:10,318 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [608514540] [2021-07-14 06:14:10,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 06:14:10,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 06:14:10,388 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 06:14:10,389 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 06:14:10,389 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [608514540] [2021-07-14 06:14:10,390 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [608514540] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 06:14:10,390 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [629432123] [2021-07-14 06:14:10,390 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 06:14:10,434 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 4 check-sat command(s) [2021-07-14 06:14:10,434 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 06:14:10,435 INFO L263 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 15 conjunts are in the unsatisfiable core [2021-07-14 06:14:10,437 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 06:14:10,653 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 06:14:10,654 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [629432123] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 06:14:10,654 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 06:14:10,654 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 8] total 8 [2021-07-14 06:14:10,654 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1646271067] [2021-07-14 06:14:10,654 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-07-14 06:14:10,655 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 06:14:10,655 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-07-14 06:14:10,655 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2021-07-14 06:14:10,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 06:14:10,656 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 06:14:10,656 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 8 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 06:14:10,656 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-14 06:14:10,656 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-07-14 06:14:10,656 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-14 06:14:10,656 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-07-14 06:14:10,657 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 06:14:10,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 06:14:10,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-07-14 06:14:10,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-14 06:14:10,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-14 06:14:10,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-14 06:14:10,999 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 06:14:11,000 INFO L430 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 06:14:11,000 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 06:14:11,000 INFO L82 PathProgramCache]: Analyzing trace with hash 47743644, now seen corresponding path program 6 times [2021-07-14 06:14:11,000 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 06:14:11,001 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [327891499] [2021-07-14 06:14:11,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 06:14:11,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 06:14:11,071 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 06:14:11,072 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 06:14:11,072 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [327891499] [2021-07-14 06:14:11,072 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [327891499] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 06:14:11,072 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1051110189] [2021-07-14 06:14:11,072 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 06:14:11,111 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 5 check-sat command(s) [2021-07-14 06:14:11,111 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 06:14:11,112 INFO L263 TraceCheckSpWp]: Trace formula consists of 44 conjuncts, 9 conjunts are in the unsatisfiable core [2021-07-14 06:14:11,115 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 06:14:11,286 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 06:14:11,286 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1051110189] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 06:14:11,286 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 06:14:11,286 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 13 [2021-07-14 06:14:11,287 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [284796136] [2021-07-14 06:14:11,287 INFO L462 AbstractCegarLoop]: Interpolant automaton has 14 states [2021-07-14 06:14:11,287 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 06:14:11,288 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-07-14 06:14:11,288 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2021-07-14 06:14:11,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 06:14:11,288 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 06:14:11,288 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 14 states, 14 states have (on average 2.5714285714285716) internal successors, (36), 13 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 06:14:11,288 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-14 06:14:11,289 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-07-14 06:14:11,289 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-14 06:14:11,289 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-07-14 06:14:11,289 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-07-14 06:14:11,289 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 06:14:11,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 06:14:11,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-07-14 06:14:11,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-14 06:14:11,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-14 06:14:11,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-14 06:14:11,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-07-14 06:14:12,075 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,8 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 06:14:12,076 INFO L430 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 06:14:12,076 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 06:14:12,076 INFO L82 PathProgramCache]: Analyzing trace with hash 101187486, now seen corresponding path program 7 times [2021-07-14 06:14:12,076 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 06:14:12,076 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1727296324] [2021-07-14 06:14:12,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 06:14:12,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 06:14:12,165 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 32 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 06:14:12,165 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 06:14:12,165 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1727296324] [2021-07-14 06:14:12,165 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1727296324] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 06:14:12,166 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1875704279] [2021-07-14 06:14:12,166 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 06:14:12,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 06:14:12,194 INFO L263 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 19 conjunts are in the unsatisfiable core [2021-07-14 06:14:12,195 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 06:14:12,596 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 32 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 06:14:12,596 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1875704279] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 06:14:12,597 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 06:14:12,597 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 10] total 10 [2021-07-14 06:14:12,597 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [56186243] [2021-07-14 06:14:12,597 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-07-14 06:14:12,597 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 06:14:12,598 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-07-14 06:14:12,634 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2021-07-14 06:14:12,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 06:14:12,634 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 06:14:12,635 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 3.5454545454545454) internal successors, (39), 10 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 06:14:12,635 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-14 06:14:12,635 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-07-14 06:14:12,635 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-14 06:14:12,635 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-07-14 06:14:12,635 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-07-14 06:14:12,635 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2021-07-14 06:14:12,635 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 06:14:12,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 06:14:12,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-07-14 06:14:12,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-14 06:14:12,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-14 06:14:12,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-14 06:14:12,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-07-14 06:14:12,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-07-14 06:14:12,979 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2021-07-14 06:14:12,980 INFO L430 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 06:14:12,980 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 06:14:12,980 INFO L82 PathProgramCache]: Analyzing trace with hash 1018055712, now seen corresponding path program 8 times [2021-07-14 06:14:12,980 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 06:14:12,980 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [192229553] [2021-07-14 06:14:12,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 06:14:12,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 06:14:13,099 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 0 proven. 41 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 06:14:13,099 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 06:14:13,099 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [192229553] [2021-07-14 06:14:13,099 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [192229553] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 06:14:13,099 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1956702136] [2021-07-14 06:14:13,099 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 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 06:14:13,139 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-07-14 06:14:13,140 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 06:14:13,144 INFO L263 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 11 conjunts are in the unsatisfiable core [2021-07-14 06:14:13,145 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 06:14:13,361 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 0 proven. 41 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 06:14:13,361 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1956702136] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 06:14:13,361 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 06:14:13,361 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 16 [2021-07-14 06:14:13,362 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1596711204] [2021-07-14 06:14:13,362 INFO L462 AbstractCegarLoop]: Interpolant automaton has 17 states [2021-07-14 06:14:13,362 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 06:14:13,363 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-07-14 06:14:13,363 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=236, Unknown=0, NotChecked=0, Total=272 [2021-07-14 06:14:13,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 06:14:13,363 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 06:14:13,363 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 17 states, 17 states have (on average 2.4705882352941178) internal successors, (42), 16 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 06:14:13,363 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-14 06:14:13,363 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-07-14 06:14:13,363 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-14 06:14:13,363 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-07-14 06:14:13,364 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-07-14 06:14:13,364 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2021-07-14 06:14:13,364 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-07-14 06:14:13,364 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 06:14:14,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 06:14:14,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-07-14 06:14:14,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-14 06:14:14,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-14 06:14:14,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-14 06:14:14,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-07-14 06:14:14,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-07-14 06:14:14,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-07-14 06:14:14,447 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,10 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 06:14:14,448 INFO L430 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 06:14:14,448 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 06:14:14,448 INFO L82 PathProgramCache]: Analyzing trace with hash 563181602, now seen corresponding path program 9 times [2021-07-14 06:14:14,448 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 06:14:14,448 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [15049151] [2021-07-14 06:14:14,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 06:14:14,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 06:14:14,525 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 50 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 06:14:14,525 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 06:14:14,525 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [15049151] [2021-07-14 06:14:14,526 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [15049151] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 06:14:14,526 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [301424205] [2021-07-14 06:14:14,526 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 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 06:14:14,555 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2021-07-14 06:14:14,555 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 06:14:14,556 INFO L263 TraceCheckSpWp]: Trace formula consists of 53 conjuncts, 23 conjunts are in the unsatisfiable core [2021-07-14 06:14:14,557 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 06:14:14,959 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 50 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 06:14:14,959 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [301424205] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 06:14:14,959 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 06:14:14,959 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 12] total 12 [2021-07-14 06:14:14,960 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1361349996] [2021-07-14 06:14:14,960 INFO L462 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-07-14 06:14:14,960 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 06:14:14,961 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-07-14 06:14:14,961 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2021-07-14 06:14:14,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 06:14:14,961 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 06:14:14,961 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 13 states, 13 states have (on average 3.4615384615384617) internal successors, (45), 12 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 06:14:14,961 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-14 06:14:14,961 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-07-14 06:14:14,962 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-14 06:14:14,962 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-07-14 06:14:14,962 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-07-14 06:14:14,962 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2021-07-14 06:14:14,962 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-07-14 06:14:14,962 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 27 states. [2021-07-14 06:14:14,962 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 06:14:15,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 06:14:15,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-07-14 06:14:15,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-14 06:14:15,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-14 06:14:15,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-14 06:14:15,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-07-14 06:14:15,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-07-14 06:14:15,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-07-14 06:14:15,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-14 06:14:15,397 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,11 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 06:14:15,397 INFO L430 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 06:14:15,398 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 06:14:15,398 INFO L82 PathProgramCache]: Analyzing trace with hash -883313756, now seen corresponding path program 10 times [2021-07-14 06:14:15,398 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 06:14:15,398 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1493205068] [2021-07-14 06:14:15,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 06:14:15,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 06:14:15,506 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 0 proven. 61 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 06:14:15,506 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 06:14:15,506 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1493205068] [2021-07-14 06:14:15,506 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1493205068] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 06:14:15,506 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1939738299] [2021-07-14 06:14:15,506 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 06:14:15,539 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-07-14 06:14:15,539 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 06:14:15,540 INFO L263 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 13 conjunts are in the unsatisfiable core [2021-07-14 06:14:15,543 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 06:14:15,839 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 0 proven. 61 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 06:14:15,840 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1939738299] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 06:14:15,840 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 06:14:15,840 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 19 [2021-07-14 06:14:15,840 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1466397521] [2021-07-14 06:14:15,841 INFO L462 AbstractCegarLoop]: Interpolant automaton has 20 states [2021-07-14 06:14:15,841 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 06:14:15,841 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-07-14 06:14:15,841 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=337, Unknown=0, NotChecked=0, Total=380 [2021-07-14 06:14:15,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 06:14:15,842 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 06:14:15,842 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 20 states, 20 states have (on average 2.4) internal successors, (48), 19 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 06:14:15,842 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-14 06:14:15,842 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-07-14 06:14:15,842 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-14 06:14:15,842 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-07-14 06:14:15,842 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-07-14 06:14:15,842 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2021-07-14 06:14:15,842 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-07-14 06:14:15,842 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 27 states. [2021-07-14 06:14:15,842 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-07-14 06:14:15,842 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 06:14:16,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 06:14:16,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-07-14 06:14:16,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-14 06:14:16,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-14 06:14:16,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-14 06:14:16,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-07-14 06:14:16,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-07-14 06:14:16,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-07-14 06:14:16,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-14 06:14:16,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-07-14 06:14:17,112 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2021-07-14 06:14:17,113 INFO L430 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 06:14:17,114 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 06:14:17,114 INFO L82 PathProgramCache]: Analyzing trace with hash -1291776346, now seen corresponding path program 11 times [2021-07-14 06:14:17,114 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 06:14:17,114 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [899966172] [2021-07-14 06:14:17,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 06:14:17,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 06:14:17,210 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 72 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 06:14:17,211 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 06:14:17,211 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [899966172] [2021-07-14 06:14:17,211 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [899966172] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 06:14:17,211 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [445079032] [2021-07-14 06:14:17,211 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 06:14:17,253 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 7 check-sat command(s) [2021-07-14 06:14:17,253 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 06:14:17,254 INFO L263 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 27 conjunts are in the unsatisfiable core [2021-07-14 06:14:17,257 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 06:14:17,588 WARN L348 FreeRefinementEngine]: Global settings require throwing the following exception [2021-07-14 06:14:17,805 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,13 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 06:14:17,805 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: Possible infinite loop detected aux_div_aux_div_x2_10_97 already exists at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.polynomials.SolveForSubjectUtils.tryToHandleDivModSubterm(SolveForSubjectUtils.java:198) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.polynomials.SolveForSubjectUtils.findTreatableDivModSubterm(SolveForSubjectUtils.java:585) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.polynomials.SolveForSubjectUtils.findTreatableDivModSubterm(SolveForSubjectUtils.java:573) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.polynomials.SolveForSubjectUtils.solveForSubject(SolveForSubjectUtils.java:76) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.polynomials.PolynomialRelation.solveForSubject(PolynomialRelation.java:451) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.polynomials.SolveForSubjectUtils.tryToHandleDivModSubterm(SolveForSubjectUtils.java:212) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.polynomials.SolveForSubjectUtils.findTreatableDivModSubterm(SolveForSubjectUtils.java:585) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.polynomials.SolveForSubjectUtils.findTreatableDivModSubterm(SolveForSubjectUtils.java:573) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.polynomials.SolveForSubjectUtils.solveForSubject(SolveForSubjectUtils.java:76) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.polynomials.PolynomialRelation.solveForSubject(PolynomialRelation.java:451) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionDer$DerHelperMcsbr.solveForSubject(DualJunctionDer.java:408) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionDer$DerHelperMcsbr.solveForSubject(DualJunctionDer.java:1) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionDer$IDerHelper.findBestReplacementSbr(DualJunctionDer.java:312) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionDer$IDerHelper.tryToEliminateSbr(DualJunctionDer.java:328) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionDer.tryToEliminateOne(DualJunctionDer.java:231) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionDer.tryExhaustivelyToEliminate(DualJunctionDer.java:198) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionDer.tryToEliminateOne(DualJunctionDer.java:182) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionDer.tryExhaustivelyToEliminate(DualJunctionDer.java:149) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionDer.tryToEliminate(DualJunctionDer.java:127) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.tryToEliminateOne(QuantifierPusher.java:869) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.applyNewEliminationTechniquesExhaustively(QuantifierPusher.java:835) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.applyDualJunctionEliminationTechniques(QuantifierPusher.java:753) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.tryToPushOverDualFiniteConnective2(QuantifierPusher.java:384) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.tryToPushOverDualFiniteConnective(QuantifierPusher.java:316) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.convert(QuantifierPusher.java:227) at de.uni_freiburg.informatik.ultimate.logic.TermTransformer.cacheConvert(TermTransformer.java:131) at de.uni_freiburg.informatik.ultimate.logic.TermTransformer$Convert.walk(TermTransformer.java:79) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:115) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:106) at de.uni_freiburg.informatik.ultimate.logic.TermTransformer.transform(TermTransformer.java:272) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.eliminate(QuantifierPusher.java:144) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.eliminate(QuantifierPusher.java:166) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp$LiveVariablesPostprocessorForward.postprocess(TraceCheckSpWp.java:539) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.applyPostprocessors(IterativePredicateTransformer.java:440) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.computeStrongestPostconditionSequence(IterativePredicateTransformer.java:201) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolantsUsingUnsatCore(TraceCheckSpWp.java:299) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolants(TraceCheckSpWp.java:185) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:163) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:108) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:100) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:297) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:190) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:180) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:84) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:74) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:597) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:439) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:374) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:69) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:63) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:367) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:293) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:238) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:167) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:154) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-07-14 06:14:17,812 INFO L168 Benchmark]: Toolchain (without parser) took 10839.42 ms. Allocated memory was 199.2 MB in the beginning and 292.6 MB in the end (delta: 93.3 MB). Free memory was 179.1 MB in the beginning and 144.3 MB in the end (delta: 34.8 MB). Peak memory consumption was 129.6 MB. Max. memory is 8.0 GB. [2021-07-14 06:14:17,812 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.16 ms. Allocated memory is still 199.2 MB. Free memory is still 180.1 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-07-14 06:14:17,813 INFO L168 Benchmark]: Boogie Procedure Inliner took 24.81 ms. Allocated memory is still 199.2 MB. Free memory was 179.0 MB in the beginning and 177.5 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-07-14 06:14:17,813 INFO L168 Benchmark]: Boogie Preprocessor took 13.19 ms. Allocated memory is still 199.2 MB. Free memory was 177.5 MB in the beginning and 176.6 MB in the end (delta: 910.9 kB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-07-14 06:14:17,813 INFO L168 Benchmark]: RCFGBuilder took 195.31 ms. Allocated memory is still 199.2 MB. Free memory was 176.5 MB in the beginning and 166.9 MB in the end (delta: 9.6 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. [2021-07-14 06:14:17,813 INFO L168 Benchmark]: TraceAbstraction took 10600.97 ms. Allocated memory was 199.2 MB in the beginning and 292.6 MB in the end (delta: 93.3 MB). Free memory was 166.5 MB in the beginning and 144.3 MB in the end (delta: 22.2 MB). Peak memory consumption was 117.0 MB. Max. memory is 8.0 GB. [2021-07-14 06:14:17,813 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Boogie PL CUP Parser took 0.16 ms. Allocated memory is still 199.2 MB. Free memory is still 180.1 MB. There was no memory consumed. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 24.81 ms. Allocated memory is still 199.2 MB. Free memory was 179.0 MB in the beginning and 177.5 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 13.19 ms. Allocated memory is still 199.2 MB. Free memory was 177.5 MB in the beginning and 176.6 MB in the end (delta: 910.9 kB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 195.31 ms. Allocated memory is still 199.2 MB. Free memory was 176.5 MB in the beginning and 166.9 MB in the end (delta: 9.6 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. * TraceAbstraction took 10600.97 ms. Allocated memory was 199.2 MB in the beginning and 292.6 MB in the end (delta: 93.3 MB). Free memory was 166.5 MB in the beginning and 144.3 MB in the end (delta: 22.2 MB). Peak memory consumption was 117.0 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: Possible infinite loop detected aux_div_aux_div_x2_10_97 already exists de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: Possible infinite loop detected aux_div_aux_div_x2_10_97 already exists: de.uni_freiburg.informatik.ultimate.lib.smtlibutils.polynomials.SolveForSubjectUtils.tryToHandleDivModSubterm(SolveForSubjectUtils.java:198) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...