/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-POR-NewStatesSleep-NoLbe-Lockstep.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/bench/exp2x9.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-a47a088281b0b97d17910950432b7c5b5bc3adeb-a47a088 [2021-07-14 06:14:43,048 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-07-14 06:14:43,050 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-07-14 06:14:43,073 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-07-14 06:14:43,114 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-POR-NewStatesSleep-NoLbe-Lockstep.epf [2021-07-14 06:14:43,138 INFO L113 SettingsManager]: Loading preferences was successful [2021-07-14 06:14:43,138 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-07-14 06:14:43,138 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-07-14 06:14:43,148 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-07-14 06:14:43,149 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-07-14 06:14:43,149 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-07-14 06:14:43,149 INFO L138 SettingsManager]: * Use SBE=true [2021-07-14 06:14:43,149 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-07-14 06:14:43,150 INFO L138 SettingsManager]: * sizeof long=4 [2021-07-14 06:14:43,150 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-07-14 06:14:43,150 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-07-14 06:14:43,150 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-07-14 06:14:43,150 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-07-14 06:14:43,150 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-07-14 06:14:43,150 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-07-14 06:14:43,150 INFO L138 SettingsManager]: * sizeof long double=12 [2021-07-14 06:14:43,151 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-07-14 06:14:43,151 INFO L138 SettingsManager]: * Use constant arrays=true [2021-07-14 06:14:43,151 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-07-14 06:14:43,151 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-07-14 06:14:43,151 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-07-14 06:14:43,151 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-07-14 06:14:43,151 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-07-14 06:14:43,151 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-07-14 06:14:43,152 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-07-14 06:14:43,152 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-07-14 06:14:43,152 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-07-14 06:14:43,152 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-07-14 06:14:43,152 INFO L138 SettingsManager]: * DFS Order used in POR=PSEUDO_LOCKSTEP [2021-07-14 06:14:43,152 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-07-14 06:14:43,152 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-07-14 06:14:43,153 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-07-14 06:14:43,153 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-07-14 06:14:43,153 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_NEW_STATES [2021-07-14 06:14:43,153 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-07-14 06:14:43,420 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-07-14 06:14:43,445 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-07-14 06:14:43,447 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-07-14 06:14:43,448 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-07-14 06:14:43,449 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-07-14 06:14:43,450 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/bench/exp2x9.wvr.bpl [2021-07-14 06:14:43,450 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/bench/exp2x9.wvr.bpl' [2021-07-14 06:14:43,481 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-07-14 06:14:43,483 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-07-14 06:14:43,485 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-07-14 06:14:43,485 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-07-14 06:14:43,485 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-07-14 06:14:43,495 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "exp2x9.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 06:14:43" (1/1) ... [2021-07-14 06:14:43,502 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "exp2x9.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 06:14:43" (1/1) ... [2021-07-14 06:14:43,509 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-07-14 06:14:43,510 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-07-14 06:14:43,510 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-07-14 06:14:43,510 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-07-14 06:14:43,516 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "exp2x9.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 06:14:43" (1/1) ... [2021-07-14 06:14:43,516 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "exp2x9.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 06:14:43" (1/1) ... [2021-07-14 06:14:43,523 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "exp2x9.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 06:14:43" (1/1) ... [2021-07-14 06:14:43,523 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "exp2x9.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 06:14:43" (1/1) ... [2021-07-14 06:14:43,526 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "exp2x9.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 06:14:43" (1/1) ... [2021-07-14 06:14:43,529 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "exp2x9.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 06:14:43" (1/1) ... [2021-07-14 06:14:43,531 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "exp2x9.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 06:14:43" (1/1) ... [2021-07-14 06:14:43,534 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-07-14 06:14:43,536 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-07-14 06:14:43,536 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-07-14 06:14:43,536 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-07-14 06:14:43,537 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "exp2x9.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 06:14:43" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-07-14 06:14:43,629 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2021-07-14 06:14:43,630 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-07-14 06:14:43,630 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-07-14 06:14:43,630 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2021-07-14 06:14:43,630 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-07-14 06:14:43,630 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-07-14 06:14:43,630 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-07-14 06:14:43,630 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-07-14 06:14:43,631 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-07-14 06:14:43,631 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2021-07-14 06:14:43,632 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-07-14 06:14:43,632 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-07-14 06:14:43,632 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread4 given in one single declaration [2021-07-14 06:14:43,632 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2021-07-14 06:14:43,632 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2021-07-14 06:14:43,633 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-07-14 06:14:43,878 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-07-14 06:14:43,878 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-07-14 06:14:43,879 INFO L202 PluginConnector]: Adding new model exp2x9.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 06:14:43 BoogieIcfgContainer [2021-07-14 06:14:43,879 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-07-14 06:14:43,881 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-07-14 06:14:43,881 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-07-14 06:14:43,883 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-07-14 06:14:43,883 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "exp2x9.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 06:14:43" (1/2) ... [2021-07-14 06:14:43,883 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@753ef75a and model type exp2x9.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.07 06:14:43, skipping insertion in model container [2021-07-14 06:14:43,883 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "exp2x9.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 06:14:43" (2/2) ... [2021-07-14 06:14:43,901 INFO L111 eAbstractionObserver]: Analyzing ICFG exp2x9.wvr.bpl [2021-07-14 06:14:43,905 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-07-14 06:14:43,905 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-07-14 06:14:43,906 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-07-14 06:14:43,906 INFO L474 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-07-14 06:14:43,971 INFO L149 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2021-07-14 06:14:43,994 INFO L255 AbstractCegarLoop]: Starting to check reachability of 5 error locations. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-07-14 06:14:44,047 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-07-14 06:14:44,047 INFO L379 AbstractCegarLoop]: Hoare is false [2021-07-14 06:14:44,047 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-07-14 06:14:44,047 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-07-14 06:14:44,048 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-07-14 06:14:44,048 INFO L383 AbstractCegarLoop]: Difference is false [2021-07-14 06:14:44,048 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-07-14 06:14:44,048 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-07-14 06:14:44,371 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 06:14:44,375 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 06:14:44,376 INFO L82 PathProgramCache]: Analyzing trace with hash 558192904, now seen corresponding path program 1 times [2021-07-14 06:14:44,383 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 06:14:44,384 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1746628963] [2021-07-14 06:14:44,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 06:14:44,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 06:14:44,685 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 57 proven. 9 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-07-14 06:14:44,686 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 06:14:44,686 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1746628963] [2021-07-14 06:14:44,686 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1746628963] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 06:14:44,687 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [10369168] [2021-07-14 06:14:44,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 06:14:44,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 06:14:44,773 INFO L263 TraceCheckSpWp]: Trace formula consists of 208 conjuncts, 17 conjunts are in the unsatisfiable core [2021-07-14 06:14:44,784 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 06:14:45,681 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 57 proven. 9 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-07-14 06:14:45,681 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [10369168] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 06:14:45,681 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 06:14:45,682 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 17] total 19 [2021-07-14 06:14:45,683 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [526796294] [2021-07-14 06:14:45,688 INFO L462 AbstractCegarLoop]: Interpolant automaton has 20 states [2021-07-14 06:14:45,688 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 06:14:45,736 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-07-14 06:14:45,738 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=305, Unknown=0, NotChecked=0, Total=380 [2021-07-14 06:14:45,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 06:14:45,740 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 06:14:45,742 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 20 states, 20 states have (on average 5.55) internal successors, (111), 19 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 06:14:45,743 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 06:14:47,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-07-14 06:14:47,408 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2021-07-14 06:14:47,408 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 06:14:47,409 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 06:14:47,409 INFO L82 PathProgramCache]: Analyzing trace with hash 73899568, now seen corresponding path program 2 times [2021-07-14 06:14:47,409 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 06:14:47,409 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1155925921] [2021-07-14 06:14:47,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 06:14:47,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 06:14:47,685 INFO L134 CoverageAnalysis]: Checked inductivity of 82 backedges. 32 proven. 50 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 06:14:47,685 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 06:14:47,685 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1155925921] [2021-07-14 06:14:47,685 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1155925921] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 06:14:47,685 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1753057571] [2021-07-14 06:14:47,685 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 06:14:47,738 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-07-14 06:14:47,738 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 06:14:47,739 INFO L263 TraceCheckSpWp]: Trace formula consists of 208 conjuncts, 17 conjunts are in the unsatisfiable core [2021-07-14 06:14:47,742 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 06:14:48,617 INFO L134 CoverageAnalysis]: Checked inductivity of 82 backedges. 54 proven. 10 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2021-07-14 06:14:48,618 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1753057571] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 06:14:48,618 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 06:14:48,618 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 17] total 40 [2021-07-14 06:14:48,618 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2089768230] [2021-07-14 06:14:48,619 INFO L462 AbstractCegarLoop]: Interpolant automaton has 41 states [2021-07-14 06:14:48,619 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 06:14:48,619 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2021-07-14 06:14:48,621 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=159, Invalid=1481, Unknown=0, NotChecked=0, Total=1640 [2021-07-14 06:14:48,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 06:14:48,621 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 06:14:48,621 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 41 states, 41 states have (on average 3.975609756097561) internal successors, (163), 40 states have internal predecessors, (163), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 06:14:48,621 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 30 states. [2021-07-14 06:14:48,621 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 06:14:52,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-07-14 06:14:52,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2021-07-14 06:14:53,070 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 06:14:53,070 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 06:14:53,071 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 06:14:53,071 INFO L82 PathProgramCache]: Analyzing trace with hash 1170607757, now seen corresponding path program 3 times [2021-07-14 06:14:53,071 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 06:14:53,071 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1853372684] [2021-07-14 06:14:53,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 06:14:53,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 06:14:53,675 INFO L134 CoverageAnalysis]: Checked inductivity of 273 backedges. 181 proven. 44 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2021-07-14 06:14:53,675 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 06:14:53,675 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1853372684] [2021-07-14 06:14:53,675 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1853372684] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 06:14:53,675 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [32496707] [2021-07-14 06:14:53,675 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 06:14:53,765 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2021-07-14 06:14:53,765 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 06:14:53,767 INFO L263 TraceCheckSpWp]: Trace formula consists of 313 conjuncts, 31 conjunts are in the unsatisfiable core [2021-07-14 06:14:53,770 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 06:14:57,445 INFO L134 CoverageAnalysis]: Checked inductivity of 273 backedges. 168 proven. 9 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2021-07-14 06:14:57,446 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [32496707] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 06:14:57,446 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 06:14:57,446 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [38, 31] total 68 [2021-07-14 06:14:57,446 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [13597716] [2021-07-14 06:14:57,446 INFO L462 AbstractCegarLoop]: Interpolant automaton has 69 states [2021-07-14 06:14:57,447 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 06:14:57,447 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 69 interpolants. [2021-07-14 06:14:57,448 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=466, Invalid=4226, Unknown=0, NotChecked=0, Total=4692 [2021-07-14 06:14:57,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 06:14:57,448 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 06:14:57,449 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 69 states, 69 states have (on average 2.8550724637681157) internal successors, (197), 68 states have internal predecessors, (197), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 06:14:57,449 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 30 states. [2021-07-14 06:14:57,449 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 60 states. [2021-07-14 06:14:57,449 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 06:15:24,621 WARN L205 SmtUtils]: Spent 278.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 38 [2021-07-14 06:15:35,778 WARN L205 SmtUtils]: Spent 269.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 63 [2021-07-14 06:15:37,792 WARN L205 SmtUtils]: Spent 227.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 42 [2021-07-14 06:15:38,804 WARN L205 SmtUtils]: Spent 349.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 42 [2021-07-14 06:15:39,823 WARN L205 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 42 [2021-07-14 06:15:46,507 WARN L205 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 42 [2021-07-14 06:15:49,810 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 61 [2021-07-14 06:16:01,519 WARN L205 SmtUtils]: Spent 398.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 46 [2021-07-14 06:16:16,050 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-07-14 06:16:52,466 WARN L205 SmtUtils]: Spent 466.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 63 [2021-07-14 06:16:59,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-07-14 06:16:59,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 85 states. [2021-07-14 06:16:59,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 137 states. [2021-07-14 06:17:00,112 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 06:17:00,115 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 06:17:00,115 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 06:17:00,115 INFO L82 PathProgramCache]: Analyzing trace with hash -1325074467, now seen corresponding path program 4 times [2021-07-14 06:17:00,115 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 06:17:00,115 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [861816122] [2021-07-14 06:17:00,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 06:17:00,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 06:17:00,277 INFO L134 CoverageAnalysis]: Checked inductivity of 231 backedges. 41 proven. 54 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2021-07-14 06:17:00,277 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 06:17:00,277 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [861816122] [2021-07-14 06:17:00,277 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [861816122] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 06:17:00,277 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [89855933] [2021-07-14 06:17:00,278 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 06:17:00,337 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-07-14 06:17:00,338 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 06:17:00,339 INFO L263 TraceCheckSpWp]: Trace formula consists of 283 conjuncts, 73 conjunts are in the unsatisfiable core [2021-07-14 06:17:00,347 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 06:18:19,229 INFO L134 CoverageAnalysis]: Checked inductivity of 231 backedges. 181 proven. 49 refuted. 1 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 06:18:19,229 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [89855933] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 06:18:19,229 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 06:18:19,229 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 73] total 77 [2021-07-14 06:18:19,229 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [674368207] [2021-07-14 06:18:19,230 INFO L462 AbstractCegarLoop]: Interpolant automaton has 78 states [2021-07-14 06:18:19,230 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 06:18:19,230 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 78 interpolants. [2021-07-14 06:18:19,232 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1028, Invalid=4967, Unknown=11, NotChecked=0, Total=6006 [2021-07-14 06:18:19,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 06:18:19,232 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 06:18:19,232 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 78 states, 78 states have (on average 2.41025641025641) internal successors, (188), 77 states have internal predecessors, (188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 06:18:19,232 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 30 states. [2021-07-14 06:18:19,233 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 85 states. [2021-07-14 06:18:19,233 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 137 states. [2021-07-14 06:18:19,233 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 06:20:43,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-07-14 06:20:43,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 104 states. [2021-07-14 06:20:43,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 141 states. [2021-07-14 06:20:43,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 74 states. [2021-07-14 06:20:44,172 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,6 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 06:20:44,172 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 06:20:44,173 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 06:20:44,173 INFO L82 PathProgramCache]: Analyzing trace with hash 1141797749, now seen corresponding path program 5 times [2021-07-14 06:20:44,173 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 06:20:44,173 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [376281494] [2021-07-14 06:20:44,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 06:20:44,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 06:20:44,435 INFO L134 CoverageAnalysis]: Checked inductivity of 191 backedges. 0 proven. 111 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2021-07-14 06:20:44,435 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 06:20:44,436 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [376281494] [2021-07-14 06:20:44,436 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [376281494] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 06:20:44,436 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [978149963] [2021-07-14 06:20:44,436 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 06:20:44,491 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 4 check-sat command(s) [2021-07-14 06:20:44,491 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 06:20:44,493 INFO L263 TraceCheckSpWp]: Trace formula consists of 283 conjuncts, 59 conjunts are in the unsatisfiable core [2021-07-14 06:20:44,495 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 06:21:00,852 INFO L134 CoverageAnalysis]: Checked inductivity of 191 backedges. 0 proven. 191 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 06:21:00,853 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [978149963] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 06:21:00,853 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 06:21:00,853 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 59] total 78 [2021-07-14 06:21:00,853 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [980308432] [2021-07-14 06:21:00,854 INFO L462 AbstractCegarLoop]: Interpolant automaton has 79 states [2021-07-14 06:21:00,854 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 06:21:00,854 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 79 interpolants. [2021-07-14 06:21:00,855 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=156, Invalid=6006, Unknown=0, NotChecked=0, Total=6162 [2021-07-14 06:21:00,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 06:21:00,855 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 06:21:00,856 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 79 states, 79 states have (on average 2.6202531645569622) internal successors, (207), 78 states have internal predecessors, (207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 06:21:00,856 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 30 states. [2021-07-14 06:21:00,856 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 104 states. [2021-07-14 06:21:00,856 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 141 states. [2021-07-14 06:21:00,856 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 74 states. [2021-07-14 06:21:00,856 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 06:25:19,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-07-14 06:25:19,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 104 states. [2021-07-14 06:25:19,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 141 states. [2021-07-14 06:25:19,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 74 states. [2021-07-14 06:25:19,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 163 states. [2021-07-14 06:25:19,802 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 06:25:19,802 INFO L430 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 06:25:19,803 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 06:25:19,803 INFO L82 PathProgramCache]: Analyzing trace with hash 1161480394, now seen corresponding path program 6 times [2021-07-14 06:25:19,803 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 06:25:19,803 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [691346714] [2021-07-14 06:25:19,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 06:25:19,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 06:25:21,747 INFO L134 CoverageAnalysis]: Checked inductivity of 314 backedges. 118 proven. 196 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 06:25:21,747 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 06:25:21,747 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [691346714] [2021-07-14 06:25:21,747 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [691346714] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 06:25:21,747 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2082715934] [2021-07-14 06:25:21,747 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 06:25:21,804 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 5 check-sat command(s) [2021-07-14 06:25:21,804 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 06:25:21,807 INFO L263 TraceCheckSpWp]: Trace formula consists of 328 conjuncts, 81 conjunts are in the unsatisfiable core [2021-07-14 06:25:21,809 INFO L286 TraceCheckSpWp]: Computing forward predicates... Received shutdown request... Cannot interrupt operation gracefully because timeout expired. Forcing shutdown