/usr/bin/java -Xmx16000000000 -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-Persistent-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/parallel/parallel-sum-1-dsl.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-d47b94137d5c7dd60722882962a90fb345e61909-d47b941 [2021-05-04 00:52:18,018 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-05-04 00:52:18,021 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-05-04 00:52:18,057 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-05-04 00:52:18,085 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-05-04 00:52:18,086 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-05-04 00:52:18,086 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-05-04 00:52:18,087 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-Persistent-NoLbe.epf [2021-05-04 00:52:18,106 INFO L113 SettingsManager]: Loading preferences was successful [2021-05-04 00:52:18,107 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-05-04 00:52:18,107 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-05-04 00:52:18,107 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-05-04 00:52:18,108 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-05-04 00:52:18,108 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-05-04 00:52:18,108 INFO L138 SettingsManager]: * Use SBE=true [2021-05-04 00:52:18,109 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-05-04 00:52:18,109 INFO L138 SettingsManager]: * sizeof long=4 [2021-05-04 00:52:18,109 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-05-04 00:52:18,109 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-05-04 00:52:18,109 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-05-04 00:52:18,109 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-05-04 00:52:18,109 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-05-04 00:52:18,109 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-05-04 00:52:18,110 INFO L138 SettingsManager]: * sizeof long double=12 [2021-05-04 00:52:18,110 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-05-04 00:52:18,110 INFO L138 SettingsManager]: * Use constant arrays=true [2021-05-04 00:52:18,110 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-05-04 00:52:18,110 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-05-04 00:52:18,110 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-05-04 00:52:18,110 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-05-04 00:52:18,110 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-05-04 00:52:18,111 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-05-04 00:52:18,111 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-05-04 00:52:18,111 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-05-04 00:52:18,111 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-05-04 00:52:18,111 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-05-04 00:52:18,111 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-05-04 00:52:18,111 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-05-04 00:52:18,111 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-05-04 00:52:18,112 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-05-04 00:52:18,112 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SETS [2021-05-04 00:52:18,112 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-05-04 00:52:18,408 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-05-04 00:52:18,437 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-05-04 00:52:18,440 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-05-04 00:52:18,441 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-05-04 00:52:18,442 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-05-04 00:52:18,443 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/parallel/parallel-sum-1-dsl.wvr.bpl [2021-05-04 00:52:18,443 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/parallel/parallel-sum-1-dsl.wvr.bpl' [2021-05-04 00:52:18,515 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-05-04 00:52:18,517 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-05-04 00:52:18,518 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-05-04 00:52:18,518 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-05-04 00:52:18,518 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-05-04 00:52:18,528 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "parallel-sum-1-dsl.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.05 12:52:18" (1/1) ... [2021-05-04 00:52:18,535 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "parallel-sum-1-dsl.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.05 12:52:18" (1/1) ... [2021-05-04 00:52:18,540 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-05-04 00:52:18,545 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-05-04 00:52:18,545 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-05-04 00:52:18,545 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-05-04 00:52:18,552 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "parallel-sum-1-dsl.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.05 12:52:18" (1/1) ... [2021-05-04 00:52:18,552 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "parallel-sum-1-dsl.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.05 12:52:18" (1/1) ... [2021-05-04 00:52:18,554 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "parallel-sum-1-dsl.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.05 12:52:18" (1/1) ... [2021-05-04 00:52:18,554 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "parallel-sum-1-dsl.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.05 12:52:18" (1/1) ... [2021-05-04 00:52:18,562 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "parallel-sum-1-dsl.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.05 12:52:18" (1/1) ... [2021-05-04 00:52:18,564 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "parallel-sum-1-dsl.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.05 12:52:18" (1/1) ... [2021-05-04 00:52:18,565 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "parallel-sum-1-dsl.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.05 12:52:18" (1/1) ... [2021-05-04 00:52:18,566 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-05-04 00:52:18,567 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-05-04 00:52:18,567 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-05-04 00:52:18,567 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-05-04 00:52:18,568 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "parallel-sum-1-dsl.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.05 12:52:18" (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 [2021-05-04 00:52:18,634 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2021-05-04 00:52:18,634 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-05-04 00:52:18,635 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-05-04 00:52:18,635 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2021-05-04 00:52:18,635 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-05-04 00:52:18,635 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-05-04 00:52:18,635 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-05-04 00:52:18,635 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-05-04 00:52:18,636 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-05-04 00:52:18,636 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2021-05-04 00:52:18,636 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-05-04 00:52:18,636 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-05-04 00:52:18,636 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread4 given in one single declaration [2021-05-04 00:52:18,636 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2021-05-04 00:52:18,636 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2021-05-04 00:52:18,637 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread5 given in one single declaration [2021-05-04 00:52:18,637 INFO L130 BoogieDeclarations]: Found specification of procedure thread5 [2021-05-04 00:52:18,637 INFO L138 BoogieDeclarations]: Found implementation of procedure thread5 [2021-05-04 00:52:18,637 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread6 given in one single declaration [2021-05-04 00:52:18,637 INFO L130 BoogieDeclarations]: Found specification of procedure thread6 [2021-05-04 00:52:18,637 INFO L138 BoogieDeclarations]: Found implementation of procedure thread6 [2021-05-04 00:52:18,638 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-05-04 00:52:18,946 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-05-04 00:52:18,946 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2021-05-04 00:52:18,947 WARN L327 CfgBuilder]: Unexpected successor node of atomic block begin: thread2EXIT is neither atomic block end nor error location. [2021-05-04 00:52:18,947 WARN L327 CfgBuilder]: Unexpected successor node of atomic block begin: thread3EXIT is neither atomic block end nor error location. [2021-05-04 00:52:18,947 WARN L327 CfgBuilder]: Unexpected successor node of atomic block begin: thread5EXIT is neither atomic block end nor error location. [2021-05-04 00:52:18,947 WARN L327 CfgBuilder]: Unexpected successor node of atomic block begin: thread6EXIT is neither atomic block end nor error location. [2021-05-04 00:52:18,949 INFO L202 PluginConnector]: Adding new model parallel-sum-1-dsl.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.05 12:52:18 BoogieIcfgContainer [2021-05-04 00:52:18,949 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-05-04 00:52:18,951 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-05-04 00:52:18,951 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-05-04 00:52:18,953 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-05-04 00:52:18,954 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "parallel-sum-1-dsl.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.05 12:52:18" (1/2) ... [2021-05-04 00:52:18,954 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@66b037c5 and model type parallel-sum-1-dsl.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.05 12:52:18, skipping insertion in model container [2021-05-04 00:52:18,954 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "parallel-sum-1-dsl.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.05 12:52:18" (2/2) ... [2021-05-04 00:52:18,956 INFO L111 eAbstractionObserver]: Analyzing ICFG parallel-sum-1-dsl.wvr.bpl [2021-05-04 00:52:18,961 WARN L142 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-05-04 00:52:18,961 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-05-04 00:52:18,964 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-05-04 00:52:18,965 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-05-04 00:52:19,149 INFO L149 ThreadInstanceAdder]: Constructed 18 joinOtherThreadTransitions. [2021-05-04 00:52:19,167 INFO L253 AbstractCegarLoop]: Starting to check reachability of 11 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 [2021-05-04 00:52:19,243 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-05-04 00:52:19,243 INFO L377 AbstractCegarLoop]: Hoare is true [2021-05-04 00:52:19,243 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-05-04 00:52:19,243 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-05-04 00:52:19,243 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-05-04 00:52:19,244 INFO L381 AbstractCegarLoop]: Difference is false [2021-05-04 00:52:19,244 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-05-04 00:52:19,244 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-05-04 00:52:19,482 INFO L428 AbstractCegarLoop]: === Iteration 1 === [thread1Thread1of1ForFork0Err4INUSE_VIOLATION, ULTIMATE.startErr9INUSE_VIOLATION, thread4Err0INUSE_VIOLATION, thread4Thread1of1ForFork1Err2INUSE_VIOLATION, thread1Err8INUSE_VIOLATION, thread4Err5INUSE_VIOLATION, thread1Err7INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, thread1Thread1of1ForFork0Err3INUSE_VIOLATION, thread4Thread1of1ForFork1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-05-04 00:52:19,487 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-04 00:52:19,487 INFO L82 PathProgramCache]: Analyzing trace with hash 395693908, now seen corresponding path program 1 times [2021-05-04 00:52:19,497 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-04 00:52:19,498 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [223192876] [2021-05-04 00:52:19,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-04 00:52:19,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-04 00:52:19,694 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-04 00:52:19,694 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [223192876] [2021-05-04 00:52:19,695 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-04 00:52:19,695 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-05-04 00:52:19,696 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [870552020] [2021-05-04 00:52:19,701 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-05-04 00:52:19,701 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-04 00:52:19,712 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-05-04 00:52:19,713 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-05-04 00:52:19,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-05-04 00:52:19,714 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-05-04 00:52:19,717 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 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) [2021-05-04 00:52:19,717 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-05-04 00:52:19,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-05-04 00:52:19,754 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-05-04 00:52:19,754 INFO L428 AbstractCegarLoop]: === Iteration 2 === [thread1Thread1of1ForFork0Err4INUSE_VIOLATION, ULTIMATE.startErr9INUSE_VIOLATION, thread4Err0INUSE_VIOLATION, thread4Thread1of1ForFork1Err2INUSE_VIOLATION, thread1Err8INUSE_VIOLATION, thread4Err5INUSE_VIOLATION, thread1Err7INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, thread1Thread1of1ForFork0Err3INUSE_VIOLATION, thread4Thread1of1ForFork1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-05-04 00:52:19,755 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-04 00:52:19,755 INFO L82 PathProgramCache]: Analyzing trace with hash -577534925, now seen corresponding path program 1 times [2021-05-04 00:52:19,755 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-04 00:52:19,755 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [435539998] [2021-05-04 00:52:19,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-04 00:52:19,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-04 00:52:19,799 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-04 00:52:19,800 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [435539998] [2021-05-04 00:52:19,800 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-04 00:52:19,800 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-05-04 00:52:19,800 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1811537292] [2021-05-04 00:52:19,801 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-05-04 00:52:19,802 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-04 00:52:19,802 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-05-04 00:52:19,802 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-05-04 00:52:19,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-05-04 00:52:19,803 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-05-04 00:52:19,803 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 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) [2021-05-04 00:52:19,803 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-05-04 00:52:19,803 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-05-04 00:52:19,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-05-04 00:52:19,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-05-04 00:52:19,835 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-05-04 00:52:19,835 INFO L428 AbstractCegarLoop]: === Iteration 3 === [thread1Thread1of1ForFork0Err4INUSE_VIOLATION, ULTIMATE.startErr9INUSE_VIOLATION, thread4Err0INUSE_VIOLATION, thread4Thread1of1ForFork1Err2INUSE_VIOLATION, thread1Err8INUSE_VIOLATION, thread4Err5INUSE_VIOLATION, thread1Err7INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, thread1Thread1of1ForFork0Err3INUSE_VIOLATION, thread4Thread1of1ForFork1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-05-04 00:52:19,836 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-04 00:52:19,836 INFO L82 PathProgramCache]: Analyzing trace with hash -1102773581, now seen corresponding path program 1 times [2021-05-04 00:52:19,836 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-04 00:52:19,836 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [968111040] [2021-05-04 00:52:19,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-04 00:52:19,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-04 00:52:19,881 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-04 00:52:19,881 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [968111040] [2021-05-04 00:52:19,881 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-04 00:52:19,882 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-05-04 00:52:19,882 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1216099070] [2021-05-04 00:52:19,884 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-05-04 00:52:19,885 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-04 00:52:19,886 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-05-04 00:52:19,887 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-05-04 00:52:19,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-05-04 00:52:19,888 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-05-04 00:52:19,888 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 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) [2021-05-04 00:52:19,888 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-05-04 00:52:19,888 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-05-04 00:52:19,888 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-05-04 00:52:19,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-05-04 00:52:19,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-05-04 00:52:19,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-05-04 00:52:19,935 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-05-04 00:52:19,936 INFO L428 AbstractCegarLoop]: === Iteration 4 === [thread1Thread1of1ForFork0Err4INUSE_VIOLATION, ULTIMATE.startErr9INUSE_VIOLATION, thread4Err0INUSE_VIOLATION, thread4Thread1of1ForFork1Err2INUSE_VIOLATION, thread1Err8INUSE_VIOLATION, thread4Err5INUSE_VIOLATION, thread1Err7INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, thread1Thread1of1ForFork0Err3INUSE_VIOLATION, thread4Thread1of1ForFork1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-05-04 00:52:19,937 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-04 00:52:19,938 INFO L82 PathProgramCache]: Analyzing trace with hash -1306411373, now seen corresponding path program 1 times [2021-05-04 00:52:19,938 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-04 00:52:19,938 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1174146861] [2021-05-04 00:52:19,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-04 00:52:19,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-04 00:52:19,988 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-04 00:52:19,988 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1174146861] [2021-05-04 00:52:19,989 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-04 00:52:19,989 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-05-04 00:52:19,989 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1335978599] [2021-05-04 00:52:19,990 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-05-04 00:52:19,990 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-04 00:52:19,991 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-05-04 00:52:19,991 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-05-04 00:52:19,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-05-04 00:52:19,992 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-05-04 00:52:19,992 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 4.8) internal successors, (24), 5 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) [2021-05-04 00:52:19,993 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-05-04 00:52:19,993 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-05-04 00:52:19,996 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-05-04 00:52:19,996 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-05-04 00:52:20,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-05-04 00:52:20,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-05-04 00:52:20,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-05-04 00:52:20,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-05-04 00:52:20,102 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-05-04 00:52:20,106 INFO L428 AbstractCegarLoop]: === Iteration 5 === [thread1Thread1of1ForFork0Err4INUSE_VIOLATION, ULTIMATE.startErr9INUSE_VIOLATION, thread4Err0INUSE_VIOLATION, thread4Thread1of1ForFork1Err2INUSE_VIOLATION, thread1Err8INUSE_VIOLATION, thread4Err5INUSE_VIOLATION, thread1Err7INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, thread1Thread1of1ForFork0Err3INUSE_VIOLATION, thread4Thread1of1ForFork1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-05-04 00:52:20,107 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-04 00:52:20,107 INFO L82 PathProgramCache]: Analyzing trace with hash -610143981, now seen corresponding path program 1 times [2021-05-04 00:52:20,108 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-04 00:52:20,108 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [168111561] [2021-05-04 00:52:20,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-04 00:52:20,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-04 00:52:20,163 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-04 00:52:20,164 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [168111561] [2021-05-04 00:52:20,164 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [606592036] [2021-05-04 00:52:20,164 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 [2021-05-04 00:52:20,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-04 00:52:20,240 INFO L263 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 4 conjunts are in the unsatisfiable core [2021-05-04 00:52:20,244 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-04 00:52:20,427 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-04 00:52:20,427 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-04 00:52:20,427 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2021-05-04 00:52:20,428 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [312851978] [2021-05-04 00:52:20,428 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-05-04 00:52:20,428 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-04 00:52:20,429 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-05-04 00:52:20,429 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-05-04 00:52:20,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-05-04 00:52:20,429 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-05-04 00:52:20,429 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 4.666666666666667) internal successors, (28), 6 states have internal predecessors, (28), 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) [2021-05-04 00:52:20,430 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-05-04 00:52:20,430 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-05-04 00:52:20,430 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-05-04 00:52:20,430 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-05-04 00:52:20,430 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-05-04 00:52:20,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-05-04 00:52:20,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-05-04 00:52:20,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-05-04 00:52:20,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-05-04 00:52:20,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-05-04 00:52:20,728 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-04 00:52:20,728 INFO L428 AbstractCegarLoop]: === Iteration 6 === [thread1Thread1of1ForFork0Err4INUSE_VIOLATION, ULTIMATE.startErr9INUSE_VIOLATION, thread4Err0INUSE_VIOLATION, thread4Thread1of1ForFork1Err2INUSE_VIOLATION, thread1Err8INUSE_VIOLATION, thread4Err5INUSE_VIOLATION, thread1Err7INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, thread1Thread1of1ForFork0Err3INUSE_VIOLATION, thread4Thread1of1ForFork1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-05-04 00:52:20,729 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-04 00:52:20,729 INFO L82 PathProgramCache]: Analyzing trace with hash -1548981102, now seen corresponding path program 1 times [2021-05-04 00:52:20,729 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-04 00:52:20,729 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1829556563] [2021-05-04 00:52:20,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-04 00:52:20,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-04 00:52:20,990 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-04 00:52:20,991 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1829556563] [2021-05-04 00:52:20,991 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1492877489] [2021-05-04 00:52:20,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 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 [2021-05-04 00:52:21,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-04 00:52:21,049 INFO L263 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 21 conjunts are in the unsatisfiable core [2021-05-04 00:52:21,053 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-04 00:52:21,326 INFO L173 IndexEqualityManager]: detected equality via solver [2021-05-04 00:52:21,331 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 10 [2021-05-04 00:52:21,335 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-05-04 00:52:21,343 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-05-04 00:52:21,347 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-05-04 00:52:21,348 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:25, output treesize:10 [2021-05-04 00:52:21,434 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-04 00:52:21,434 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-04 00:52:21,434 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 13 [2021-05-04 00:52:21,435 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [990314316] [2021-05-04 00:52:21,435 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-05-04 00:52:21,435 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-04 00:52:21,440 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-05-04 00:52:21,440 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2021-05-04 00:52:21,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-05-04 00:52:21,440 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-05-04 00:52:21,440 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 13 states, 13 states have (on average 3.0) internal successors, (39), 13 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) [2021-05-04 00:52:21,440 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-05-04 00:52:21,440 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-05-04 00:52:21,441 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-05-04 00:52:21,441 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-05-04 00:52:21,441 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-05-04 00:52:21,441 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-05-04 00:52:21,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-05-04 00:52:21,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-05-04 00:52:21,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-05-04 00:52:21,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-05-04 00:52:21,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-05-04 00:52:21,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-05-04 00:52:22,163 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-04 00:52:22,163 INFO L428 AbstractCegarLoop]: === Iteration 7 === [thread1Thread1of1ForFork0Err4INUSE_VIOLATION, ULTIMATE.startErr9INUSE_VIOLATION, thread4Err0INUSE_VIOLATION, thread4Thread1of1ForFork1Err2INUSE_VIOLATION, thread1Err8INUSE_VIOLATION, thread4Err5INUSE_VIOLATION, thread1Err7INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, thread1Thread1of1ForFork0Err3INUSE_VIOLATION, thread4Thread1of1ForFork1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-05-04 00:52:22,164 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-04 00:52:22,164 INFO L82 PathProgramCache]: Analyzing trace with hash -1828322223, now seen corresponding path program 2 times [2021-05-04 00:52:22,164 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-04 00:52:22,164 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [110925710] [2021-05-04 00:52:22,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-04 00:52:22,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-04 00:52:22,236 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-04 00:52:22,236 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [110925710] [2021-05-04 00:52:22,236 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1177527576] [2021-05-04 00:52:22,236 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 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 [2021-05-04 00:52:22,311 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-05-04 00:52:22,312 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-04 00:52:22,312 INFO L263 TraceCheckSpWp]: Trace formula consists of 123 conjuncts, 6 conjunts are in the unsatisfiable core [2021-05-04 00:52:22,314 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-04 00:52:22,400 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-04 00:52:22,401 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-04 00:52:22,401 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2021-05-04 00:52:22,401 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1502892846] [2021-05-04 00:52:22,402 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-05-04 00:52:22,402 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-04 00:52:22,402 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-05-04 00:52:22,403 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2021-05-04 00:52:22,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-05-04 00:52:22,403 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-05-04 00:52:22,403 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 3.7777777777777777) internal successors, (34), 9 states have internal predecessors, (34), 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) [2021-05-04 00:52:22,403 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-05-04 00:52:22,404 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-05-04 00:52:22,404 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-05-04 00:52:22,404 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-05-04 00:52:22,404 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-05-04 00:52:22,404 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-05-04 00:52:22,404 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-05-04 00:52:22,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-05-04 00:52:22,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-05-04 00:52:22,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-05-04 00:52:22,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-05-04 00:52:22,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-05-04 00:52:22,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-05-04 00:52:22,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-05-04 00:52:22,809 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-04 00:52:22,809 INFO L428 AbstractCegarLoop]: === Iteration 8 === [thread1Thread1of1ForFork0Err4INUSE_VIOLATION, ULTIMATE.startErr9INUSE_VIOLATION, thread4Err0INUSE_VIOLATION, thread4Thread1of1ForFork1Err2INUSE_VIOLATION, thread1Err8INUSE_VIOLATION, thread4Err5INUSE_VIOLATION, thread1Err7INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, thread1Thread1of1ForFork0Err3INUSE_VIOLATION, thread4Thread1of1ForFork1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-05-04 00:52:22,810 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-04 00:52:22,810 INFO L82 PathProgramCache]: Analyzing trace with hash 1564710609, now seen corresponding path program 3 times [2021-05-04 00:52:22,810 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-04 00:52:22,810 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1928371095] [2021-05-04 00:52:22,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-04 00:52:22,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-04 00:52:22,869 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-04 00:52:22,870 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1928371095] [2021-05-04 00:52:22,870 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [457246130] [2021-05-04 00:52:22,870 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 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 [2021-05-04 00:52:22,916 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2021-05-04 00:52:22,916 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-04 00:52:22,917 INFO L263 TraceCheckSpWp]: Trace formula consists of 123 conjuncts, 6 conjunts are in the unsatisfiable core [2021-05-04 00:52:22,918 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-04 00:52:22,995 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-04 00:52:22,996 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-04 00:52:22,996 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2021-05-04 00:52:22,996 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1221507405] [2021-05-04 00:52:22,996 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-05-04 00:52:22,997 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-04 00:52:22,997 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-05-04 00:52:22,997 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2021-05-04 00:52:22,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-05-04 00:52:22,997 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-05-04 00:52:22,998 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 3.7777777777777777) internal successors, (34), 9 states have internal predecessors, (34), 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) [2021-05-04 00:52:22,998 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-05-04 00:52:22,998 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-05-04 00:52:22,998 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-05-04 00:52:22,998 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-05-04 00:52:22,998 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-05-04 00:52:22,998 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-05-04 00:52:22,998 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-05-04 00:52:22,998 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-05-04 00:52:23,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-05-04 00:52:23,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-05-04 00:52:23,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-05-04 00:52:23,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-05-04 00:52:23,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-05-04 00:52:23,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-05-04 00:52:23,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-05-04 00:52:23,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-05-04 00:52:23,331 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,6 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-04 00:52:23,332 INFO L428 AbstractCegarLoop]: === Iteration 9 === [thread1Thread1of1ForFork0Err4INUSE_VIOLATION, ULTIMATE.startErr9INUSE_VIOLATION, thread4Err0INUSE_VIOLATION, thread4Thread1of1ForFork1Err2INUSE_VIOLATION, thread1Err8INUSE_VIOLATION, thread4Err5INUSE_VIOLATION, thread1Err7INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, thread1Thread1of1ForFork0Err3INUSE_VIOLATION, thread4Thread1of1ForFork1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-05-04 00:52:23,333 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-04 00:52:23,333 INFO L82 PathProgramCache]: Analyzing trace with hash 1132174032, now seen corresponding path program 4 times [2021-05-04 00:52:23,333 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-04 00:52:23,333 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1941746833] [2021-05-04 00:52:23,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-04 00:52:23,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-04 00:52:23,657 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-04 00:52:23,658 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1941746833] [2021-05-04 00:52:23,658 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1257481144] [2021-05-04 00:52:23,658 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 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 [2021-05-04 00:52:23,714 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-05-04 00:52:23,714 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-04 00:52:23,715 INFO L263 TraceCheckSpWp]: Trace formula consists of 130 conjuncts, 33 conjunts are in the unsatisfiable core [2021-05-04 00:52:23,717 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-04 00:52:23,912 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 12 [2021-05-04 00:52:23,913 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-05-04 00:52:23,915 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-05-04 00:52:23,915 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-05-04 00:52:23,916 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:20, output treesize:7 [2021-05-04 00:52:23,977 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-04 00:52:23,978 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-04 00:52:23,978 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 12] total 22 [2021-05-04 00:52:23,978 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1633165897] [2021-05-04 00:52:23,979 INFO L460 AbstractCegarLoop]: Interpolant automaton has 22 states [2021-05-04 00:52:23,979 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-04 00:52:23,980 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2021-05-04 00:52:23,980 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=403, Unknown=0, NotChecked=0, Total=462 [2021-05-04 00:52:23,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-05-04 00:52:23,981 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-05-04 00:52:23,981 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 22 states, 22 states have (on average 2.1363636363636362) internal successors, (47), 22 states have internal predecessors, (47), 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) [2021-05-04 00:52:23,981 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-05-04 00:52:23,981 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-05-04 00:52:23,981 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-05-04 00:52:23,981 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-05-04 00:52:23,981 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-05-04 00:52:23,981 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-05-04 00:52:23,981 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-05-04 00:52:23,981 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-05-04 00:52:23,982 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-05-04 00:52:24,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-05-04 00:52:24,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-05-04 00:52:24,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-05-04 00:52:24,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-05-04 00:52:24,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-05-04 00:52:24,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-05-04 00:52:24,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-05-04 00:52:24,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-05-04 00:52:24,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-05-04 00:52:25,088 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-04 00:52:25,089 INFO L428 AbstractCegarLoop]: === Iteration 10 === [thread1Thread1of1ForFork0Err4INUSE_VIOLATION, ULTIMATE.startErr9INUSE_VIOLATION, thread4Err0INUSE_VIOLATION, thread4Thread1of1ForFork1Err2INUSE_VIOLATION, thread1Err8INUSE_VIOLATION, thread4Err5INUSE_VIOLATION, thread1Err7INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, thread1Thread1of1ForFork0Err3INUSE_VIOLATION, thread4Thread1of1ForFork1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-05-04 00:52:25,089 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-04 00:52:25,089 INFO L82 PathProgramCache]: Analyzing trace with hash 2076351247, now seen corresponding path program 5 times [2021-05-04 00:52:25,089 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-04 00:52:25,089 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [647512930] [2021-05-04 00:52:25,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-04 00:52:25,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-04 00:52:25,151 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 9 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-04 00:52:25,151 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [647512930] [2021-05-04 00:52:25,152 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2060295801] [2021-05-04 00:52:25,152 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 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 [2021-05-04 00:52:25,214 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 4 check-sat command(s) [2021-05-04 00:52:25,214 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-04 00:52:25,215 INFO L263 TraceCheckSpWp]: Trace formula consists of 137 conjuncts, 8 conjunts are in the unsatisfiable core [2021-05-04 00:52:25,216 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-04 00:52:25,338 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 9 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-04 00:52:25,338 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-04 00:52:25,338 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 12 [2021-05-04 00:52:25,339 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [914708621] [2021-05-04 00:52:25,339 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-05-04 00:52:25,339 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-04 00:52:25,340 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-05-04 00:52:25,340 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2021-05-04 00:52:25,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-05-04 00:52:25,340 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-05-04 00:52:25,340 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 3.3333333333333335) internal successors, (40), 12 states have internal predecessors, (40), 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) [2021-05-04 00:52:25,341 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-05-04 00:52:25,341 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-05-04 00:52:25,341 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-05-04 00:52:25,341 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-05-04 00:52:25,341 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-05-04 00:52:25,341 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-05-04 00:52:25,341 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-05-04 00:52:25,341 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-05-04 00:52:25,341 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-05-04 00:52:25,342 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-05-04 00:52:26,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-05-04 00:52:26,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-05-04 00:52:26,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-05-04 00:52:26,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-05-04 00:52:26,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-05-04 00:52:26,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-05-04 00:52:26,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-05-04 00:52:26,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-05-04 00:52:26,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-05-04 00:52:26,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-05-04 00:52:26,433 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2021-05-04 00:52:26,433 INFO L428 AbstractCegarLoop]: === Iteration 11 === [thread1Thread1of1ForFork0Err4INUSE_VIOLATION, ULTIMATE.startErr9INUSE_VIOLATION, thread4Err0INUSE_VIOLATION, thread4Thread1of1ForFork1Err2INUSE_VIOLATION, thread1Err8INUSE_VIOLATION, thread4Err5INUSE_VIOLATION, thread1Err7INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, thread1Thread1of1ForFork0Err3INUSE_VIOLATION, thread4Thread1of1ForFork1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-05-04 00:52:26,434 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-04 00:52:26,434 INFO L82 PathProgramCache]: Analyzing trace with hash 846912014, now seen corresponding path program 6 times [2021-05-04 00:52:26,434 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-04 00:52:26,434 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1833167416] [2021-05-04 00:52:26,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-04 00:52:26,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-04 00:52:26,931 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-04 00:52:26,931 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1833167416] [2021-05-04 00:52:26,931 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [362850363] [2021-05-04 00:52:26,931 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 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 [2021-05-04 00:52:26,995 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 4 check-sat command(s) [2021-05-04 00:52:26,995 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-04 00:52:26,996 INFO L263 TraceCheckSpWp]: Trace formula consists of 144 conjuncts, 46 conjunts are in the unsatisfiable core [2021-05-04 00:52:26,997 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-04 00:52:27,486 INFO L173 IndexEqualityManager]: detected equality via solver [2021-05-04 00:52:27,487 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 15 [2021-05-04 00:52:27,488 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-05-04 00:52:27,493 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-05-04 00:52:27,495 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-05-04 00:52:27,495 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:33, output treesize:5 [2021-05-04 00:52:27,562 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-04 00:52:27,562 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-04 00:52:27,562 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17] total 31 [2021-05-04 00:52:27,563 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1130098909] [2021-05-04 00:52:27,563 INFO L460 AbstractCegarLoop]: Interpolant automaton has 31 states [2021-05-04 00:52:27,563 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-04 00:52:27,564 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2021-05-04 00:52:27,564 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=91, Invalid=839, Unknown=0, NotChecked=0, Total=930 [2021-05-04 00:52:27,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-05-04 00:52:27,564 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-05-04 00:52:27,565 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 31 states, 31 states have (on average 1.7741935483870968) internal successors, (55), 31 states have internal predecessors, (55), 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) [2021-05-04 00:52:27,565 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-05-04 00:52:27,565 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-05-04 00:52:27,565 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-05-04 00:52:27,565 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-05-04 00:52:27,565 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-05-04 00:52:27,565 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-05-04 00:52:27,565 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-05-04 00:52:27,565 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-05-04 00:52:27,565 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. [2021-05-04 00:52:27,565 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2021-05-04 00:52:27,566 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-05-04 00:52:29,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-05-04 00:52:29,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-05-04 00:52:29,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-05-04 00:52:29,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-05-04 00:52:29,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-05-04 00:52:29,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-05-04 00:52:29,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-05-04 00:52:29,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-05-04 00:52:29,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-05-04 00:52:29,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-05-04 00:52:29,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-05-04 00:52:29,262 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2021-05-04 00:52:29,263 INFO L428 AbstractCegarLoop]: === Iteration 12 === [thread1Thread1of1ForFork0Err4INUSE_VIOLATION, ULTIMATE.startErr9INUSE_VIOLATION, thread4Err0INUSE_VIOLATION, thread4Thread1of1ForFork1Err2INUSE_VIOLATION, thread1Err8INUSE_VIOLATION, thread4Err5INUSE_VIOLATION, thread1Err7INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, thread1Thread1of1ForFork0Err3INUSE_VIOLATION, thread4Thread1of1ForFork1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-05-04 00:52:29,263 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-04 00:52:29,263 INFO L82 PathProgramCache]: Analyzing trace with hash -1477508403, now seen corresponding path program 7 times [2021-05-04 00:52:29,264 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-04 00:52:29,264 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1350927113] [2021-05-04 00:52:29,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-04 00:52:29,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-04 00:52:29,338 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 16 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-04 00:52:29,338 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1350927113] [2021-05-04 00:52:29,338 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [865856064] [2021-05-04 00:52:29,339 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 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 [2021-05-04 00:52:29,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-04 00:52:29,398 INFO L263 TraceCheckSpWp]: Trace formula consists of 151 conjuncts, 10 conjunts are in the unsatisfiable core [2021-05-04 00:52:29,409 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-04 00:52:29,556 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 16 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-04 00:52:29,556 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-04 00:52:29,557 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 15 [2021-05-04 00:52:29,557 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [597690915] [2021-05-04 00:52:29,557 INFO L460 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-05-04 00:52:29,557 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-04 00:52:29,558 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-05-04 00:52:29,558 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=151, Unknown=0, NotChecked=0, Total=210 [2021-05-04 00:52:29,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-05-04 00:52:29,558 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-05-04 00:52:29,558 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 15 states, 15 states have (on average 3.066666666666667) internal successors, (46), 15 states have internal predecessors, (46), 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) [2021-05-04 00:52:29,559 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-05-04 00:52:29,559 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-05-04 00:52:29,559 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-05-04 00:52:29,559 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-05-04 00:52:29,559 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-05-04 00:52:29,559 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-05-04 00:52:29,559 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-05-04 00:52:29,559 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-05-04 00:52:29,559 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. [2021-05-04 00:52:29,559 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2021-05-04 00:52:29,559 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2021-05-04 00:52:29,559 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-05-04 00:52:31,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-05-04 00:52:31,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-05-04 00:52:31,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-05-04 00:52:31,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-05-04 00:52:31,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-05-04 00:52:31,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-05-04 00:52:31,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-05-04 00:52:31,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-05-04 00:52:31,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-05-04 00:52:31,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-05-04 00:52:31,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-05-04 00:52:31,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-05-04 00:52:31,879 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,10 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-04 00:52:31,879 INFO L428 AbstractCegarLoop]: === Iteration 13 === [thread1Thread1of1ForFork0Err4INUSE_VIOLATION, ULTIMATE.startErr9INUSE_VIOLATION, thread4Err0INUSE_VIOLATION, thread4Thread1of1ForFork1Err2INUSE_VIOLATION, thread1Err8INUSE_VIOLATION, thread4Err5INUSE_VIOLATION, thread1Err7INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, thread1Thread1of1ForFork0Err3INUSE_VIOLATION, thread4Thread1of1ForFork1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-05-04 00:52:31,880 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-04 00:52:31,880 INFO L82 PathProgramCache]: Analyzing trace with hash -1168004532, now seen corresponding path program 8 times [2021-05-04 00:52:31,880 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-04 00:52:31,880 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1003290034] [2021-05-04 00:52:31,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-04 00:52:31,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-04 00:52:32,533 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 2 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-04 00:52:32,533 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1003290034] [2021-05-04 00:52:32,533 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1574499742] [2021-05-04 00:52:32,533 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 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 [2021-05-04 00:52:32,607 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-05-04 00:52:32,607 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-04 00:52:32,608 INFO L263 TraceCheckSpWp]: Trace formula consists of 158 conjuncts, 58 conjunts are in the unsatisfiable core [2021-05-04 00:52:32,618 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-04 00:52:33,163 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-05-04 00:52:33,164 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 33 treesize of output 49 [2021-05-04 00:52:33,184 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 2 xjuncts. [2021-05-04 00:52:33,191 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-05-04 00:52:33,192 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-05-04 00:52:33,192 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:39, output treesize:17 [2021-05-04 00:52:33,325 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 32 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-04 00:52:33,325 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-04 00:52:33,326 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 21] total 39 [2021-05-04 00:52:33,326 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [946255227] [2021-05-04 00:52:33,326 INFO L460 AbstractCegarLoop]: Interpolant automaton has 39 states [2021-05-04 00:52:33,326 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-04 00:52:33,327 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 39 interpolants. [2021-05-04 00:52:33,327 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=180, Invalid=1302, Unknown=0, NotChecked=0, Total=1482 [2021-05-04 00:52:33,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-05-04 00:52:33,327 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-05-04 00:52:33,328 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 39 states, 39 states have (on average 1.6153846153846154) internal successors, (63), 39 states have internal predecessors, (63), 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) [2021-05-04 00:52:33,328 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-05-04 00:52:33,328 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-05-04 00:52:33,328 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-05-04 00:52:33,328 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-05-04 00:52:33,328 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-05-04 00:52:33,328 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-05-04 00:52:33,328 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-05-04 00:52:33,328 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-05-04 00:52:33,328 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. [2021-05-04 00:52:33,328 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2021-05-04 00:52:33,328 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 37 states. [2021-05-04 00:52:33,328 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 36 states. [2021-05-04 00:52:33,328 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-05-04 00:52:34,071 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 53 [2021-05-04 00:52:34,581 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 68 [2021-05-04 00:52:34,857 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 66 [2021-05-04 00:52:35,116 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 67 [2021-05-04 00:52:35,366 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 67 [2021-05-04 00:52:35,658 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 68 [2021-05-04 00:52:35,909 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 67 [2021-05-04 00:52:36,176 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 69 [2021-05-04 00:52:36,422 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 68 [2021-05-04 00:52:36,667 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 67 [2021-05-04 00:52:36,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-05-04 00:52:36,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-05-04 00:52:36,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-05-04 00:52:36,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-05-04 00:52:36,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-05-04 00:52:36,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-05-04 00:52:36,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-05-04 00:52:36,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-05-04 00:52:36,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-05-04 00:52:36,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-05-04 00:52:36,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-05-04 00:52:36,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-05-04 00:52:36,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2021-05-04 00:52:37,020 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,11 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-04 00:52:37,021 INFO L428 AbstractCegarLoop]: === Iteration 14 === [thread1Thread1of1ForFork0Err4INUSE_VIOLATION, ULTIMATE.startErr9INUSE_VIOLATION, thread4Err0INUSE_VIOLATION, thread4Thread1of1ForFork1Err2INUSE_VIOLATION, thread1Err8INUSE_VIOLATION, thread4Err5INUSE_VIOLATION, thread1Err7INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, thread1Thread1of1ForFork0Err3INUSE_VIOLATION, thread4Thread1of1ForFork1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-05-04 00:52:37,021 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-04 00:52:37,021 INFO L82 PathProgramCache]: Analyzing trace with hash -782058613, now seen corresponding path program 9 times [2021-05-04 00:52:37,022 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-04 00:52:37,022 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1839176212] [2021-05-04 00:52:37,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-04 00:52:37,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-04 00:52:37,118 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 25 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-04 00:52:37,118 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1839176212] [2021-05-04 00:52:37,119 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [841422916] [2021-05-04 00:52:37,119 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 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 [2021-05-04 00:52:37,179 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2021-05-04 00:52:37,180 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-04 00:52:37,181 INFO L263 TraceCheckSpWp]: Trace formula consists of 165 conjuncts, 12 conjunts are in the unsatisfiable core [2021-05-04 00:52:37,182 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-04 00:52:37,335 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 25 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-04 00:52:37,335 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-04 00:52:37,335 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 18 [2021-05-04 00:52:37,338 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [655795718] [2021-05-04 00:52:37,338 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-04 00:52:37,338 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-04 00:52:37,339 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-04 00:52:37,339 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=223, Unknown=0, NotChecked=0, Total=306 [2021-05-04 00:52:37,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-05-04 00:52:37,339 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-05-04 00:52:37,339 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 2.888888888888889) internal successors, (52), 18 states have internal predecessors, (52), 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) [2021-05-04 00:52:37,339 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-05-04 00:52:37,339 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-05-04 00:52:37,340 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-05-04 00:52:37,340 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-05-04 00:52:37,340 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-05-04 00:52:37,340 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-05-04 00:52:37,340 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-05-04 00:52:37,340 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-05-04 00:52:37,340 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. [2021-05-04 00:52:37,340 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2021-05-04 00:52:37,340 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 37 states. [2021-05-04 00:52:37,340 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 36 states. [2021-05-04 00:52:37,340 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 38 states. [2021-05-04 00:52:37,340 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-05-04 00:52:38,278 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 67 [2021-05-04 00:52:38,588 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 65 [2021-05-04 00:52:38,880 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 61 [2021-05-04 00:52:39,042 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 66 [2021-05-04 00:52:39,460 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 67 [2021-05-04 00:52:40,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-05-04 00:52:40,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-05-04 00:52:40,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-05-04 00:52:40,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-05-04 00:52:40,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-05-04 00:52:40,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-05-04 00:52:40,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-05-04 00:52:40,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-05-04 00:52:40,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-05-04 00:52:40,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-05-04 00:52:40,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-05-04 00:52:40,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-05-04 00:52:40,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2021-05-04 00:52:40,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2021-05-04 00:52:40,292 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2021-05-04 00:52:40,293 INFO L428 AbstractCegarLoop]: === Iteration 15 === [thread1Thread1of1ForFork0Err4INUSE_VIOLATION, ULTIMATE.startErr9INUSE_VIOLATION, thread4Err0INUSE_VIOLATION, thread4Thread1of1ForFork1Err2INUSE_VIOLATION, thread1Err8INUSE_VIOLATION, thread4Err5INUSE_VIOLATION, thread1Err7INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, thread1Thread1of1ForFork0Err3INUSE_VIOLATION, thread4Thread1of1ForFork1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-05-04 00:52:40,293 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-04 00:52:40,293 INFO L82 PathProgramCache]: Analyzing trace with hash -1826124918, now seen corresponding path program 10 times [2021-05-04 00:52:40,293 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-04 00:52:40,293 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1501989773] [2021-05-04 00:52:40,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-04 00:52:40,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-04 00:52:41,147 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 4 proven. 46 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-04 00:52:41,147 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1501989773] [2021-05-04 00:52:41,147 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [828682164] [2021-05-04 00:52:41,147 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 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 [2021-05-04 00:52:41,195 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-05-04 00:52:41,195 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-04 00:52:41,196 INFO L263 TraceCheckSpWp]: Trace formula consists of 172 conjuncts, 69 conjunts are in the unsatisfiable core [2021-05-04 00:52:41,198 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-04 00:52:41,915 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 19 [2021-05-04 00:52:41,917 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-05-04 00:52:41,918 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-05-04 00:52:41,919 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-05-04 00:52:41,919 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:39, output treesize:5 [2021-05-04 00:52:42,019 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 50 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-04 00:52:42,019 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-04 00:52:42,019 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 24] total 46 [2021-05-04 00:52:42,020 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1966155047] [2021-05-04 00:52:42,020 INFO L460 AbstractCegarLoop]: Interpolant automaton has 46 states [2021-05-04 00:52:42,020 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-04 00:52:42,021 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2021-05-04 00:52:42,021 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=179, Invalid=1891, Unknown=0, NotChecked=0, Total=2070 [2021-05-04 00:52:42,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-05-04 00:52:42,021 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-05-04 00:52:42,022 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 46 states, 46 states have (on average 1.5434782608695652) internal successors, (71), 46 states have internal predecessors, (71), 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) [2021-05-04 00:52:42,022 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-05-04 00:52:42,022 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-05-04 00:52:42,022 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-05-04 00:52:42,022 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-05-04 00:52:42,022 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-05-04 00:52:42,022 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-05-04 00:52:42,022 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-05-04 00:52:42,022 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-05-04 00:52:42,022 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. [2021-05-04 00:52:42,022 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2021-05-04 00:52:42,022 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 37 states. [2021-05-04 00:52:42,023 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 36 states. [2021-05-04 00:52:42,023 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 52 states. [2021-05-04 00:52:42,023 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 52 states. [2021-05-04 00:52:42,023 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-05-04 00:52:43,982 WARN L205 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 73 [2021-05-04 00:52:44,533 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 72 [2021-05-04 00:52:44,845 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 74 [2021-05-04 00:52:45,151 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 73 [2021-05-04 00:52:45,464 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 74 [2021-05-04 00:52:45,784 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 75 [2021-05-04 00:52:46,120 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 74 [2021-05-04 00:52:46,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-05-04 00:52:46,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-05-04 00:52:46,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-05-04 00:52:46,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-05-04 00:52:46,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-05-04 00:52:46,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-05-04 00:52:46,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-05-04 00:52:46,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-05-04 00:52:46,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-05-04 00:52:46,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-05-04 00:52:46,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-05-04 00:52:46,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-05-04 00:52:46,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2021-05-04 00:52:46,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2021-05-04 00:52:46,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2021-05-04 00:52:47,014 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2021-05-04 00:52:47,015 INFO L428 AbstractCegarLoop]: === Iteration 16 === [thread1Thread1of1ForFork0Err4INUSE_VIOLATION, ULTIMATE.startErr9INUSE_VIOLATION, thread4Err0INUSE_VIOLATION, thread4Thread1of1ForFork1Err2INUSE_VIOLATION, thread1Err8INUSE_VIOLATION, thread4Err5INUSE_VIOLATION, thread1Err7INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, thread1Thread1of1ForFork0Err3INUSE_VIOLATION, thread4Thread1of1ForFork1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-05-04 00:52:47,015 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-04 00:52:47,016 INFO L82 PathProgramCache]: Analyzing trace with hash -1875557047, now seen corresponding path program 11 times [2021-05-04 00:52:47,016 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-04 00:52:47,016 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1935678106] [2021-05-04 00:52:47,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-04 00:52:47,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-04 00:52:47,128 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 36 proven. 25 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-04 00:52:47,128 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1935678106] [2021-05-04 00:52:47,128 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1145362776] [2021-05-04 00:52:47,129 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 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-04 00:52:47,191 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 7 check-sat command(s) [2021-05-04 00:52:47,192 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-04 00:52:47,193 INFO L263 TraceCheckSpWp]: Trace formula consists of 179 conjuncts, 14 conjunts are in the unsatisfiable core [2021-05-04 00:52:47,198 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-04 00:52:47,397 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 25 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-04 00:52:47,398 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-04 00:52:47,398 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15] total 22 [2021-05-04 00:52:47,398 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1699488558] [2021-05-04 00:52:47,398 INFO L460 AbstractCegarLoop]: Interpolant automaton has 22 states [2021-05-04 00:52:47,398 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-04 00:52:47,399 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2021-05-04 00:52:47,399 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=93, Invalid=369, Unknown=0, NotChecked=0, Total=462 [2021-05-04 00:52:47,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-05-04 00:52:47,399 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-05-04 00:52:47,400 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 22 states, 22 states have (on average 2.9545454545454546) internal successors, (65), 22 states have internal predecessors, (65), 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) [2021-05-04 00:52:47,400 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-05-04 00:52:47,400 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-05-04 00:52:47,400 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-05-04 00:52:47,400 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-05-04 00:52:47,400 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-05-04 00:52:47,400 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-05-04 00:52:47,400 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-05-04 00:52:47,400 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-05-04 00:52:47,400 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. [2021-05-04 00:52:47,400 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2021-05-04 00:52:47,400 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 37 states. [2021-05-04 00:52:47,400 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 36 states. [2021-05-04 00:52:47,400 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 52 states. [2021-05-04 00:52:47,400 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 52 states. [2021-05-04 00:52:47,401 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 43 states. [2021-05-04 00:52:47,401 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-05-04 00:52:49,522 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 69 [2021-05-04 00:52:49,970 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 70 [2021-05-04 00:52:50,407 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 70 [2021-05-04 00:52:50,578 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 64 [2021-05-04 00:52:50,904 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 72 [2021-05-04 00:52:51,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-05-04 00:52:51,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-05-04 00:52:51,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-05-04 00:52:51,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-05-04 00:52:51,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-05-04 00:52:51,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-05-04 00:52:51,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-05-04 00:52:51,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-05-04 00:52:51,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-05-04 00:52:51,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-05-04 00:52:51,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-05-04 00:52:51,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-05-04 00:52:51,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2021-05-04 00:52:51,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2021-05-04 00:52:51,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2021-05-04 00:52:51,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 71 states. [2021-05-04 00:52:52,169 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,14 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-04 00:52:52,169 INFO L428 AbstractCegarLoop]: === Iteration 17 === [thread1Thread1of1ForFork0Err4INUSE_VIOLATION, ULTIMATE.startErr9INUSE_VIOLATION, thread4Err0INUSE_VIOLATION, thread4Thread1of1ForFork1Err2INUSE_VIOLATION, thread1Err8INUSE_VIOLATION, thread4Err5INUSE_VIOLATION, thread1Err7INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, thread1Thread1of1ForFork0Err3INUSE_VIOLATION, thread4Thread1of1ForFork1Err1INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-05-04 00:52:52,170 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-04 00:52:52,170 INFO L82 PathProgramCache]: Analyzing trace with hash 1124335048, now seen corresponding path program 12 times [2021-05-04 00:52:52,170 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-04 00:52:52,170 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1562107480] [2021-05-04 00:52:52,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-04 00:52:52,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-04 00:52:53,252 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 8 proven. 64 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-04 00:52:53,253 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1562107480] [2021-05-04 00:52:53,253 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1892122344] [2021-05-04 00:52:53,253 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 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-04 00:52:53,313 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 7 check-sat command(s) [2021-05-04 00:52:53,313 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-04 00:52:53,315 INFO L263 TraceCheckSpWp]: Trace formula consists of 186 conjuncts, 81 conjunts are in the unsatisfiable core [2021-05-04 00:52:53,316 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-04 00:52:54,476 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-04 00:52:54,478 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-04 00:52:54,479 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-04 00:52:54,481 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-04 00:52:54,484 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-04 00:52:54,488 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-04 00:52:54,490 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-04 00:52:54,492 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-04 00:52:54,496 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-04 00:52:54,498 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-04 00:52:54,500 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-04 00:52:54,501 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-04 00:52:54,502 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-04 00:52:54,503 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-04 00:52:54,507 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-04 00:52:54,509 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-04 00:52:54,514 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-04 00:52:54,519 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-04 00:52:54,522 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-04 00:52:54,526 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-05-04 00:52:54,769 WARN L205 SmtUtils]: Spent 239.00 ms on a formula simplification that was a NOOP. DAG size: 167 [2021-05-04 00:52:54,770 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-05-04 00:52:54,770 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 11 select indices, 11 select index equivalence classes, 20 disjoint index pairs (out of 55 index pairs), introduced 11 new quantified variables, introduced 35 case distinctions, treesize of input 61 treesize of output 397 [2021-05-04 00:52:55,777 WARN L205 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 3065 DAG size of output: 1697 [2021-05-04 00:52:56,085 WARN L205 SmtUtils]: Spent 244.00 ms on a formula simplification. DAG size of input: 3085 DAG size of output: 1717 [2021-05-04 00:52:58,357 WARN L205 SmtUtils]: Spent 1.13 s on a formula simplification. DAG size of input: 9685 DAG size of output: 5882 [2021-05-04 00:53:00,069 WARN L205 SmtUtils]: Spent 1.52 s on a formula simplification. DAG size of input: 9710 DAG size of output: 7425 [2021-05-04 00:53:00,528 WARN L205 SmtUtils]: Spent 386.00 ms on a formula simplification. DAG size of input: 4757 DAG size of output: 3949 [2021-05-04 00:53:01,208 WARN L205 SmtUtils]: Spent 647.00 ms on a formula simplification. DAG size of input: 3724 DAG size of output: 4700 [2021-05-04 00:53:01,895 WARN L205 SmtUtils]: Spent 635.00 ms on a formula simplification. DAG size of input: 3686 DAG size of output: 4624 [2021-05-04 00:53:02,131 WARN L205 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 1282 DAG size of output: 1485 [2021-05-04 00:53:02,384 WARN L205 SmtUtils]: Spent 234.00 ms on a formula simplification. DAG size of input: 1197 DAG size of output: 1425 [2021-05-04 00:53:02,870 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 705 DAG size of output: 835 [2021-05-04 00:53:03,917 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 2038 DAG size of output: 1374 [2021-05-04 00:53:04,076 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 2518 DAG size of output: 1798 [2021-05-04 00:53:04,944 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 1552 DAG size of output: 1237 [2021-05-04 00:53:05,277 WARN L205 SmtUtils]: Spent 317.00 ms on a formula simplification. DAG size of input: 3670 DAG size of output: 2730 [2021-05-04 00:53:05,626 WARN L205 SmtUtils]: Spent 319.00 ms on a formula simplification. DAG size of input: 4238 DAG size of output: 3252 [2021-05-04 00:53:06,076 WARN L205 SmtUtils]: Spent 429.00 ms on a formula simplification. DAG size of input: 5125 DAG size of output: 4144 [2021-05-04 00:53:09,465 WARN L205 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 2988 DAG size of output: 2234 [2021-05-04 00:53:10,517 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 1923 DAG size of output: 1330 [2021-05-04 00:53:11,042 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 2718 DAG size of output: 1977 [2021-05-04 00:53:12,478 WARN L205 SmtUtils]: Spent 355.00 ms on a formula simplification. DAG size of input: 4491 DAG size of output: 3490 [2021-05-04 00:53:13,974 WARN L205 SmtUtils]: Spent 1.45 s on a formula simplification. DAG size of input: 15219 DAG size of output: 12166 [2021-05-04 00:53:15,862 WARN L205 SmtUtils]: Spent 1.80 s on a formula simplification. DAG size of input: 16669 DAG size of output: 13441 [2021-05-04 00:53:17,816 WARN L205 SmtUtils]: Spent 1.87 s on a formula simplification. DAG size of input: 16669 DAG size of output: 13441 [2021-05-04 00:53:19,855 WARN L205 SmtUtils]: Spent 1.91 s on a formula simplification. DAG size of input: 16674 DAG size of output: 13446 [2021-05-04 00:53:23,337 WARN L205 SmtUtils]: Spent 3.37 s on a formula simplification. DAG size of input: 12790 DAG size of output: 17403 [2021-05-04 00:53:23,850 WARN L205 SmtUtils]: Spent 418.00 ms on a formula simplification. DAG size of input: 3160 DAG size of output: 4147 [2021-05-04 00:53:25,604 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 813 DAG size of output: 920 [2021-05-04 00:53:26,558 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 2289 DAG size of output: 1828 [2021-05-04 00:53:28,222 WARN L205 SmtUtils]: Spent 726.00 ms on a formula simplification. DAG size of input: 8864 DAG size of output: 6613 [2021-05-04 00:53:29,851 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 2161 DAG size of output: 1833 [2021-05-04 00:53:30,915 WARN L205 SmtUtils]: Spent 366.00 ms on a formula simplification. DAG size of input: 2030 DAG size of output: 2649 [2021-05-04 00:53:31,120 WARN L205 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 2007 DAG size of output: 2007 [2021-05-04 00:53:31,670 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 1573 DAG size of output: 1415 [2021-05-04 00:53:34,141 WARN L205 SmtUtils]: Spent 331.00 ms on a formula simplification. DAG size of input: 5457 DAG size of output: 4141 [2021-05-04 00:53:34,562 WARN L205 SmtUtils]: Spent 393.00 ms on a formula simplification. DAG size of input: 6284 DAG size of output: 4932 [2021-05-04 00:53:37,590 WARN L205 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 2730 DAG size of output: 2096 [2021-05-04 00:53:37,763 WARN L205 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 1293 DAG size of output: 1451 [2021-05-04 00:53:40,024 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 2289 DAG size of output: 1825 [2021-05-04 00:53:40,467 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 2555 DAG size of output: 2086 [2021-05-04 00:53:40,712 WARN L205 SmtUtils]: Spent 231.00 ms on a formula simplification. DAG size of input: 3326 DAG size of output: 2807 [2021-05-04 00:53:41,051 WARN L205 SmtUtils]: Spent 321.00 ms on a formula simplification. DAG size of input: 4033 DAG size of output: 3519 [2021-05-04 00:53:41,173 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 917 DAG size of output: 1214 [2021-05-04 00:53:41,868 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 578 DAG size of output: 708 [2021-05-04 00:53:42,935 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 2169 DAG size of output: 1748 [2021-05-04 00:53:43,143 WARN L205 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 3037 DAG size of output: 2496 [2021-05-04 00:53:43,424 WARN L205 SmtUtils]: Spent 264.00 ms on a formula simplification. DAG size of input: 3465 DAG size of output: 2887 [2021-05-04 00:53:43,658 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 663 DAG size of output: 861 [2021-05-04 00:53:44,376 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 1791 DAG size of output: 1399 [2021-05-04 00:53:44,518 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 1796 DAG size of output: 1404 [2021-05-04 00:53:45,532 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 1016 DAG size of output: 1339 [2021-05-04 00:53:47,156 WARN L205 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 3649 DAG size of output: 2509 [2021-05-04 00:53:47,715 WARN L205 SmtUtils]: Spent 538.00 ms on a formula simplification. DAG size of input: 2801 DAG size of output: 3618 [2021-05-04 00:53:47,847 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 1009 DAG size of output: 1347 [2021-05-04 00:53:48,589 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 2060 DAG size of output: 1537 [2021-05-04 00:53:49,218 WARN L205 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 2980 DAG size of output: 2290 [2021-05-04 00:53:49,554 WARN L205 SmtUtils]: Spent 320.00 ms on a formula simplification. DAG size of input: 3496 DAG size of output: 2761 [2021-05-04 00:53:50,334 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 1990 DAG size of output: 1550 [2021-05-04 00:53:50,490 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 2085 DAG size of output: 1642 [2021-05-04 00:53:51,652 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 1027 DAG size of output: 1388 [2021-05-04 00:53:51,764 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 1011 DAG size of output: 1282 [2021-05-04 00:53:52,618 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 2653 DAG size of output: 1998 [2021-05-04 00:53:52,833 WARN L205 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 3173 DAG size of output: 2464 [2021-05-04 00:53:54,003 WARN L205 SmtUtils]: Spent 1.15 s on a formula simplification. DAG size of input: 9768 DAG size of output: 7773 [2021-05-04 00:54:00,731 WARN L205 SmtUtils]: Spent 6.59 s on a formula simplification. DAG size of input: 41524 DAG size of output: 32578 [2021-05-04 00:54:07,680 WARN L205 SmtUtils]: Spent 6.74 s on a formula simplification. DAG size of input: 41524 DAG size of output: 32578 [2021-05-04 00:54:21,029 WARN L205 SmtUtils]: Spent 13.04 s on a formula simplification. DAG size of input: 41531 DAG size of output: 44620 [2021-05-04 00:54:22,525 WARN L205 SmtUtils]: Spent 258.00 ms on a formula simplification. DAG size of input: 2047 DAG size of output: 1084 [2021-05-04 00:54:24,212 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 1295 DAG size of output: 961 [2021-05-04 00:54:25,399 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 2044 DAG size of output: 1309 [2021-05-04 00:54:25,601 WARN L205 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 2308 DAG size of output: 2234 [2021-05-04 00:54:26,495 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 1806 DAG size of output: 1809 [2021-05-04 00:54:27,401 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 1328 DAG size of output: 1721 [2021-05-04 00:54:28,287 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 3664 DAG size of output: 1048 [2021-05-04 00:54:28,567 WARN L205 SmtUtils]: Spent 268.00 ms on a formula simplification. DAG size of input: 4676 DAG size of output: 1794 [2021-05-04 00:54:31,431 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 1627 DAG size of output: 1298 [2021-05-04 00:54:32,237 WARN L205 SmtUtils]: Spent 228.00 ms on a formula simplification. DAG size of input: 2607 DAG size of output: 2424 [2021-05-04 00:54:32,547 WARN L205 SmtUtils]: Spent 296.00 ms on a formula simplification. DAG size of input: 1991 DAG size of output: 2737 [2021-05-04 00:54:34,378 WARN L205 SmtUtils]: Spent 264.00 ms on a formula simplification. DAG size of input: 4545 DAG size of output: 2446 [2021-05-04 00:54:35,809 WARN L205 SmtUtils]: Spent 441.00 ms on a formula simplification. DAG size of input: 5711 DAG size of output: 3337 [2021-05-04 00:54:36,986 WARN L205 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 2019 DAG size of output: 1232 Received shutdown request... Cannot interrupt operation gracefully because timeout expired. Forcing shutdown