/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-DelaySleep-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-bad/dot-product-alt.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-2abb09bbbae98a04ae2fcc735832bfdba44f6fbc-2abb09b [2021-06-06 05:18:31,128 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-06-06 05:18:31,130 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-06-06 05:18:31,153 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-06-06 05:18:31,153 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-06-06 05:18:31,154 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-06-06 05:18:31,155 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-06-06 05:18:31,157 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-06-06 05:18:31,158 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-06-06 05:18:31,159 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-06-06 05:18:31,160 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-06-06 05:18:31,161 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-06-06 05:18:31,161 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-06-06 05:18:31,162 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-06-06 05:18:31,163 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-06-06 05:18:31,164 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-06-06 05:18:31,164 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-06-06 05:18:31,165 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-06-06 05:18:31,166 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-06-06 05:18:31,168 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-06-06 05:18:31,169 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-06-06 05:18:31,170 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-06-06 05:18:31,171 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-06-06 05:18:31,171 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-06-06 05:18:31,173 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-06-06 05:18:31,174 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-06-06 05:18:31,174 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-06-06 05:18:31,175 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-06-06 05:18:31,175 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-06-06 05:18:31,176 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-06-06 05:18:31,176 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-06-06 05:18:31,176 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-06-06 05:18:31,177 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-06-06 05:18:31,178 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-06-06 05:18:31,178 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-06-06 05:18:31,179 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-06-06 05:18:31,179 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-06-06 05:18:31,180 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-06-06 05:18:31,180 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-06-06 05:18:31,181 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-06-06 05:18:31,181 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-06-06 05:18:31,182 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-DelaySleep-NoLbe.epf [2021-06-06 05:18:31,215 INFO L113 SettingsManager]: Loading preferences was successful [2021-06-06 05:18:31,215 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-06-06 05:18:31,215 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-06-06 05:18:31,216 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-06-06 05:18:31,218 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-06-06 05:18:31,218 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-06-06 05:18:31,218 INFO L138 SettingsManager]: * Use SBE=true [2021-06-06 05:18:31,218 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-06-06 05:18:31,218 INFO L138 SettingsManager]: * sizeof long=4 [2021-06-06 05:18:31,218 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-06-06 05:18:31,219 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-06-06 05:18:31,219 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-06-06 05:18:31,219 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-06-06 05:18:31,219 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-06-06 05:18:31,220 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-06-06 05:18:31,220 INFO L138 SettingsManager]: * sizeof long double=12 [2021-06-06 05:18:31,220 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-06-06 05:18:31,220 INFO L138 SettingsManager]: * Use constant arrays=true [2021-06-06 05:18:31,220 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-06-06 05:18:31,220 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-06-06 05:18:31,220 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-06-06 05:18:31,220 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-06-06 05:18:31,220 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-06-06 05:18:31,221 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-06 05:18:31,221 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-06-06 05:18:31,221 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-06-06 05:18:31,221 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-06-06 05:18:31,221 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-06-06 05:18:31,221 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-06-06 05:18:31,221 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-06-06 05:18:31,221 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-06-06 05:18:31,222 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-06-06 05:18:31,222 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_DELAY_SET [2021-06-06 05:18:31,222 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-06-06 05:18:31,523 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-06-06 05:18:31,540 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-06-06 05:18:31,542 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-06-06 05:18:31,543 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-06-06 05:18:31,544 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-06-06 05:18:31,545 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-bad/dot-product-alt.wvr.bpl [2021-06-06 05:18:31,545 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-bad/dot-product-alt.wvr.bpl' [2021-06-06 05:18:31,565 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-06-06 05:18:31,567 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-06-06 05:18:31,568 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-06-06 05:18:31,568 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-06-06 05:18:31,568 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-06-06 05:18:31,581 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "dot-product-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.06 05:18:31" (1/1) ... [2021-06-06 05:18:31,587 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "dot-product-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.06 05:18:31" (1/1) ... [2021-06-06 05:18:31,592 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-06-06 05:18:31,593 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-06-06 05:18:31,593 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-06-06 05:18:31,594 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-06-06 05:18:31,600 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "dot-product-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.06 05:18:31" (1/1) ... [2021-06-06 05:18:31,600 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "dot-product-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.06 05:18:31" (1/1) ... [2021-06-06 05:18:31,601 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "dot-product-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.06 05:18:31" (1/1) ... [2021-06-06 05:18:31,602 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "dot-product-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.06 05:18:31" (1/1) ... [2021-06-06 05:18:31,604 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "dot-product-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.06 05:18:31" (1/1) ... [2021-06-06 05:18:31,606 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "dot-product-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.06 05:18:31" (1/1) ... [2021-06-06 05:18:31,607 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "dot-product-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.06 05:18:31" (1/1) ... [2021-06-06 05:18:31,608 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-06-06 05:18:31,609 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-06-06 05:18:31,609 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-06-06 05:18:31,609 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-06-06 05:18:31,610 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "dot-product-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.06 05:18:31" (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 [2021-06-06 05:18:31,679 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2021-06-06 05:18:31,679 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-06-06 05:18:31,680 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-06-06 05:18:31,680 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2021-06-06 05:18:31,680 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-06-06 05:18:31,680 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-06-06 05:18:31,680 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-06-06 05:18:31,680 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-06-06 05:18:31,680 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-06-06 05:18:31,681 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2021-06-06 05:18:31,681 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-06-06 05:18:31,681 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-06-06 05:18:31,681 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-06-06 05:18:31,814 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-06-06 05:18:31,814 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-06-06 05:18:31,816 INFO L202 PluginConnector]: Adding new model dot-product-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.06 05:18:31 BoogieIcfgContainer [2021-06-06 05:18:31,816 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-06-06 05:18:31,817 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-06-06 05:18:31,817 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-06-06 05:18:31,820 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-06-06 05:18:31,820 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "dot-product-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.06 05:18:31" (1/2) ... [2021-06-06 05:18:31,821 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5cf8bb06 and model type dot-product-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.06 05:18:31, skipping insertion in model container [2021-06-06 05:18:31,821 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "dot-product-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.06 05:18:31" (2/2) ... [2021-06-06 05:18:31,822 INFO L111 eAbstractionObserver]: Analyzing ICFG dot-product-alt.wvr.bpl [2021-06-06 05:18:31,826 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-06-06 05:18:31,826 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-06-06 05:18:31,827 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-06-06 05:18:31,827 INFO L471 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-06-06 05:18:31,872 INFO L149 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2021-06-06 05:18:31,902 INFO L255 AbstractCegarLoop]: Starting to check reachability of 4 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 [2021-06-06 05:18:31,966 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-06 05:18:31,966 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-06 05:18:31,967 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-06 05:18:31,967 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-06 05:18:31,967 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-06 05:18:31,967 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-06 05:18:31,967 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-06 05:18:31,967 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-06-06 05:18:32,049 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-06 05:18:32,053 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-06 05:18:32,054 INFO L82 PathProgramCache]: Analyzing trace with hash -837472812, now seen corresponding path program 1 times [2021-06-06 05:18:32,060 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-06 05:18:32,061 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [23276863] [2021-06-06 05:18:32,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-06 05:18:32,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 05:18:32,173 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 05:18:32,174 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-06 05:18:32,174 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [23276863] [2021-06-06 05:18:32,175 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [23276863] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-06 05:18:32,175 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-06 05:18:32,175 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-06-06 05:18:32,175 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1905584021] [2021-06-06 05:18:32,179 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-06-06 05:18:32,179 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-06 05:18:32,189 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-06-06 05:18:32,190 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-06 05:18:32,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-06 05:18:32,192 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-06 05:18:32,193 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 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) [2021-06-06 05:18:32,193 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-06 05:18:32,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-06 05:18:32,242 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-06-06 05:18:32,242 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-06 05:18:32,242 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-06 05:18:32,243 INFO L82 PathProgramCache]: Analyzing trace with hash 482321657, now seen corresponding path program 1 times [2021-06-06 05:18:32,243 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-06 05:18:32,243 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [46772083] [2021-06-06 05:18:32,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-06 05:18:32,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 05:18:32,307 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-06-06 05:18:32,308 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-06 05:18:32,309 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [46772083] [2021-06-06 05:18:32,309 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [46772083] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-06 05:18:32,310 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-06 05:18:32,310 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-06-06 05:18:32,310 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [80691812] [2021-06-06 05:18:32,312 INFO L462 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-06-06 05:18:32,312 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-06 05:18:32,315 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-06-06 05:18:32,315 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-06-06 05:18:32,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-06 05:18:32,317 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-06 05:18:32,317 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-06 05:18:32,317 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-06 05:18:32,318 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-06 05:18:32,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-06 05:18:32,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-06 05:18:32,400 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-06-06 05:18:32,400 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-06 05:18:32,401 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-06 05:18:32,401 INFO L82 PathProgramCache]: Analyzing trace with hash -850517330, now seen corresponding path program 1 times [2021-06-06 05:18:32,401 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-06 05:18:32,402 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [340947916] [2021-06-06 05:18:32,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-06 05:18:32,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 05:18:32,821 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 05:18:32,822 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-06 05:18:32,822 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [340947916] [2021-06-06 05:18:32,822 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [340947916] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 05:18:32,822 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1707026496] [2021-06-06 05:18:32,822 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 [2021-06-06 05:18:32,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 05:18:32,877 INFO L263 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 17 conjunts are in the unsatisfiable core [2021-06-06 05:18:32,882 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-06 05:18:33,159 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-06 05:18:33,164 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 23 treesize of output 19 [2021-06-06 05:18:33,173 INFO L550 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-06-06 05:18:33,179 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-06 05:18:33,182 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-06 05:18:33,183 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 19 treesize of output 15 [2021-06-06 05:18:33,189 INFO L550 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-06-06 05:18:33,195 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-06 05:18:33,198 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2021-06-06 05:18:33,203 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-06-06 05:18:33,208 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-06 05:18:33,210 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-06-06 05:18:33,211 INFO L247 ElimStorePlain]: Needed 4 recursive calls to eliminate 4 variables, input treesize:29, output treesize:3 [2021-06-06 05:18:33,250 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 05:18:33,250 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1707026496] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 05:18:33,250 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-06 05:18:33,250 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 13 [2021-06-06 05:18:33,250 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [362015943] [2021-06-06 05:18:33,251 INFO L462 AbstractCegarLoop]: Interpolant automaton has 14 states [2021-06-06 05:18:33,251 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-06 05:18:33,251 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-06-06 05:18:33,252 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=142, Unknown=0, NotChecked=0, Total=182 [2021-06-06 05:18:33,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-06 05:18:33,252 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-06 05:18:33,252 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 14 states, 14 states have (on average 2.642857142857143) internal successors, (37), 13 states have internal predecessors, (37), 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) [2021-06-06 05:18:33,252 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-06 05:18:33,252 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-06 05:18:33,253 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-06 05:18:33,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-06 05:18:33,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-06 05:18:33,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-06 05:18:33,665 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-06 05:18:33,665 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-06 05:18:33,665 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-06 05:18:33,665 INFO L82 PathProgramCache]: Analyzing trace with hash -1622545901, now seen corresponding path program 2 times [2021-06-06 05:18:33,665 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-06 05:18:33,666 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1285739617] [2021-06-06 05:18:33,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-06 05:18:33,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 05:18:33,726 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 05:18:33,726 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-06 05:18:33,726 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1285739617] [2021-06-06 05:18:33,726 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1285739617] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 05:18:33,726 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [438601296] [2021-06-06 05:18:33,727 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 [2021-06-06 05:18:33,758 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-06-06 05:18:33,759 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-06 05:18:33,759 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 7 conjunts are in the unsatisfiable core [2021-06-06 05:18:33,760 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-06 05:18:33,876 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 05:18:33,877 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [438601296] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 05:18:33,877 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-06 05:18:33,877 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 12 [2021-06-06 05:18:33,877 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2140558158] [2021-06-06 05:18:33,878 INFO L462 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-06-06 05:18:33,878 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-06 05:18:33,878 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-06-06 05:18:33,878 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2021-06-06 05:18:33,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-06 05:18:33,879 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-06 05:18:33,879 INFO L483 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) [2021-06-06 05:18:33,879 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-06 05:18:33,879 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-06 05:18:33,879 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-06-06 05:18:33,879 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-06 05:18:34,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-06 05:18:34,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-06 05:18:34,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-06 05:18:34,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-06 05:18:34,292 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-06 05:18:34,292 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-06 05:18:34,292 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-06 05:18:34,293 INFO L82 PathProgramCache]: Analyzing trace with hash 1276293331, now seen corresponding path program 1 times [2021-06-06 05:18:34,293 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-06 05:18:34,293 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [356651007] [2021-06-06 05:18:34,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-06 05:18:34,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 05:18:34,384 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 5 proven. 5 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-06-06 05:18:34,384 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-06 05:18:34,384 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [356651007] [2021-06-06 05:18:34,385 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [356651007] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 05:18:34,385 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2066904884] [2021-06-06 05:18:34,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 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 [2021-06-06 05:18:34,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 05:18:34,422 INFO L263 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 7 conjunts are in the unsatisfiable core [2021-06-06 05:18:34,425 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-06 05:18:34,547 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 5 proven. 5 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-06-06 05:18:34,547 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2066904884] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 05:18:34,548 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-06 05:18:34,548 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 11 [2021-06-06 05:18:34,548 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [690738399] [2021-06-06 05:18:34,548 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-06-06 05:18:34,548 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-06 05:18:34,549 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-06-06 05:18:34,550 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2021-06-06 05:18:34,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-06 05:18:34,550 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-06 05:18:34,551 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 3.909090909090909) internal successors, (43), 11 states have internal predecessors, (43), 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) [2021-06-06 05:18:34,551 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-06 05:18:34,551 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-06 05:18:34,551 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-06-06 05:18:34,551 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-06-06 05:18:34,552 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-06 05:18:34,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-06 05:18:34,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-06 05:18:34,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-06 05:18:34,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-06 05:18:34,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-06 05:18:34,896 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-06 05:18:34,897 INFO L430 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-06 05:18:34,897 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-06 05:18:34,897 INFO L82 PathProgramCache]: Analyzing trace with hash -60790002, now seen corresponding path program 2 times [2021-06-06 05:18:34,897 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-06 05:18:34,898 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [107390939] [2021-06-06 05:18:34,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-06 05:18:34,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 05:18:35,501 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 05:18:35,502 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-06 05:18:35,502 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [107390939] [2021-06-06 05:18:35,502 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [107390939] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 05:18:35,502 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [530804465] [2021-06-06 05:18:35,502 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 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 [2021-06-06 05:18:35,563 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-06-06 05:18:35,564 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-06 05:18:35,565 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 32 conjunts are in the unsatisfiable core [2021-06-06 05:18:35,566 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-06 05:18:41,466 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-06 05:18:41,467 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 05:18:41,468 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 05:18:41,469 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 61 treesize of output 49 [2021-06-06 05:18:41,473 INFO L550 ElimStorePlain]: Start of recursive call 2: 3 dim-0 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2021-06-06 05:18:41,483 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-06 05:18:41,485 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-06 05:18:41,486 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 05:18:41,487 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 05:18:41,488 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 49 treesize of output 37 [2021-06-06 05:18:41,491 INFO L550 ElimStorePlain]: Start of recursive call 3: 3 dim-0 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2021-06-06 05:18:41,501 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-06 05:18:41,517 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-06-06 05:18:41,517 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 37 treesize of output 49 [2021-06-06 05:18:41,547 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-06-06 05:18:41,634 INFO L628 ElimStorePlain]: treesize reduction 68, result has 35.2 percent of original size [2021-06-06 05:18:41,638 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-06-06 05:18:41,639 INFO L247 ElimStorePlain]: Needed 4 recursive calls to eliminate 5 variables, input treesize:70, output treesize:3 [2021-06-06 05:18:41,669 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 05:18:41,669 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [530804465] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 05:18:41,669 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-06 05:18:41,669 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17] total 30 [2021-06-06 05:18:41,669 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1837771380] [2021-06-06 05:18:41,670 INFO L462 AbstractCegarLoop]: Interpolant automaton has 30 states [2021-06-06 05:18:41,670 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-06 05:18:41,671 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2021-06-06 05:18:41,671 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=129, Invalid=737, Unknown=4, NotChecked=0, Total=870 [2021-06-06 05:18:41,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-06 05:18:41,671 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-06 05:18:41,671 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 30 states, 30 states have (on average 2.066666666666667) internal successors, (62), 30 states have internal predecessors, (62), 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) [2021-06-06 05:18:41,672 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-06 05:18:41,672 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-06 05:18:41,672 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-06-06 05:18:41,672 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-06-06 05:18:41,672 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-06-06 05:18:41,672 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-06 05:19:12,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-06 05:19:12,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-06 05:19:12,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-06 05:19:12,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-06 05:19:12,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-06 05:19:12,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-06 05:19:12,612 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2021-06-06 05:19:12,612 INFO L430 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-06 05:19:12,613 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-06 05:19:12,613 INFO L82 PathProgramCache]: Analyzing trace with hash -1583660301, now seen corresponding path program 3 times [2021-06-06 05:19:12,613 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-06 05:19:12,613 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [400847260] [2021-06-06 05:19:12,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-06 05:19:12,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 05:19:12,706 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 5 proven. 23 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 05:19:12,706 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-06 05:19:12,706 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [400847260] [2021-06-06 05:19:12,706 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [400847260] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 05:19:12,707 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1100833910] [2021-06-06 05:19:12,707 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 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 [2021-06-06 05:19:12,768 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2021-06-06 05:19:12,768 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-06 05:19:12,769 INFO L263 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 11 conjunts are in the unsatisfiable core [2021-06-06 05:19:12,771 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-06 05:19:12,958 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 12 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 05:19:12,959 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1100833910] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 05:19:12,959 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-06 05:19:12,959 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 20 [2021-06-06 05:19:12,959 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1357543430] [2021-06-06 05:19:12,959 INFO L462 AbstractCegarLoop]: Interpolant automaton has 20 states [2021-06-06 05:19:12,960 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-06 05:19:12,960 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-06-06 05:19:12,960 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=307, Unknown=0, NotChecked=0, Total=380 [2021-06-06 05:19:12,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-06 05:19:12,960 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-06 05:19:12,960 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 20 states, 20 states have (on average 3.2) internal successors, (64), 20 states have internal predecessors, (64), 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) [2021-06-06 05:19:12,961 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-06 05:19:12,961 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-06 05:19:12,961 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-06-06 05:19:12,961 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-06-06 05:19:12,961 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-06-06 05:19:12,961 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-06-06 05:19:12,961 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-06 05:19:13,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-06 05:19:13,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-06 05:19:13,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-06 05:19:13,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-06 05:19:13,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-06 05:19:13,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-06 05:19:13,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-06-06 05:19:13,700 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-06 05:19:13,701 INFO L430 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-06 05:19:13,701 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-06 05:19:13,701 INFO L82 PathProgramCache]: Analyzing trace with hash -76160589, now seen corresponding path program 4 times [2021-06-06 05:19:13,701 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-06 05:19:13,701 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [741692849] [2021-06-06 05:19:13,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-06 05:19:13,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 05:19:13,823 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 22 proven. 22 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-06-06 05:19:13,823 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-06 05:19:13,823 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [741692849] [2021-06-06 05:19:13,823 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [741692849] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 05:19:13,824 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1266088868] [2021-06-06 05:19:13,824 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 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 [2021-06-06 05:19:13,858 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-06-06 05:19:13,859 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-06 05:19:13,859 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 11 conjunts are in the unsatisfiable core [2021-06-06 05:19:13,861 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-06 05:19:14,010 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 22 proven. 22 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-06-06 05:19:14,011 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1266088868] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 05:19:14,011 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-06 05:19:14,011 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 17 [2021-06-06 05:19:14,011 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [759977842] [2021-06-06 05:19:14,011 INFO L462 AbstractCegarLoop]: Interpolant automaton has 17 states [2021-06-06 05:19:14,011 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-06 05:19:14,012 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-06-06 05:19:14,012 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=190, Unknown=0, NotChecked=0, Total=272 [2021-06-06 05:19:14,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-06 05:19:14,012 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-06 05:19:14,012 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 17 states, 17 states have (on average 3.588235294117647) internal successors, (61), 17 states have internal predecessors, (61), 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) [2021-06-06 05:19:14,012 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-06 05:19:14,012 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-06 05:19:14,012 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-06-06 05:19:14,012 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-06-06 05:19:14,012 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-06-06 05:19:14,013 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-06-06 05:19:14,013 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2021-06-06 05:19:14,013 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-06 05:19:14,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-06 05:19:14,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-06 05:19:14,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-06 05:19:14,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-06 05:19:14,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-06 05:19:14,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-06 05:19:14,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-06-06 05:19:14,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-06-06 05:19:14,404 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,8 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-06 05:19:14,405 INFO L430 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-06 05:19:14,405 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-06 05:19:14,405 INFO L82 PathProgramCache]: Analyzing trace with hash -886105234, now seen corresponding path program 5 times [2021-06-06 05:19:14,405 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-06 05:19:14,406 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1441077998] [2021-06-06 05:19:14,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-06 05:19:14,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 05:19:15,396 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 9 proven. 49 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 05:19:15,397 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-06 05:19:15,397 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1441077998] [2021-06-06 05:19:15,397 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1441077998] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 05:19:15,397 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1134582157] [2021-06-06 05:19:15,397 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 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 [2021-06-06 05:19:15,435 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) [2021-06-06 05:19:15,435 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-06 05:19:15,436 WARN L261 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 48 conjunts are in the unsatisfiable core [2021-06-06 05:19:15,438 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-06 05:19:16,573 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 05:19:16,574 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-06 05:19:16,575 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 97 treesize of output 77 [2021-06-06 05:19:16,578 INFO L550 ElimStorePlain]: Start of recursive call 2: 5 dim-0 vars, End of recursive call: 5 dim-0 vars, and 1 xjuncts. [2021-06-06 05:19:16,586 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-06 05:19:16,589 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 05:19:16,589 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-06 05:19:16,590 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 77 treesize of output 57 [2021-06-06 05:19:16,594 INFO L550 ElimStorePlain]: Start of recursive call 3: 5 dim-0 vars, End of recursive call: 5 dim-0 vars, and 1 xjuncts. [2021-06-06 05:19:16,603 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-06 05:19:16,661 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-06-06 05:19:16,661 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 57 treesize of output 137 [2021-06-06 05:19:16,841 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 128 [2021-06-06 05:19:16,958 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 128 [2021-06-06 05:19:17,070 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 140 [2021-06-06 05:19:17,871 WARN L205 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 166 DAG size of output: 152 [2021-06-06 05:19:18,382 WARN L205 SmtUtils]: Spent 508.00 ms on a formula simplification. DAG size of input: 230 DAG size of output: 216 [2021-06-06 05:19:19,577 WARN L205 SmtUtils]: Spent 1.11 s on a formula simplification. DAG size of input: 285 DAG size of output: 262 [2021-06-06 05:19:20,651 WARN L205 SmtUtils]: Spent 1.07 s on a formula simplification. DAG size of input: 285 DAG size of output: 262 [2021-06-06 05:19:24,492 WARN L205 SmtUtils]: Spent 3.83 s on a formula simplification. DAG size of input: 296 DAG size of output: 318 [2021-06-06 05:19:24,963 WARN L205 SmtUtils]: Spent 236.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 130 [2021-06-06 05:19:25,356 WARN L205 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 161 DAG size of output: 151 [2021-06-06 05:19:27,765 WARN L205 SmtUtils]: Spent 2.20 s on a formula simplification. DAG size of input: 353 DAG size of output: 333 [2021-06-06 05:19:28,859 WARN L205 SmtUtils]: Spent 1.09 s on a formula simplification. DAG size of input: 291 DAG size of output: 268 [2021-06-06 05:19:29,872 WARN L205 SmtUtils]: Spent 1.01 s on a formula simplification. DAG size of input: 260 DAG size of output: 261 [2021-06-06 05:19:31,060 WARN L205 SmtUtils]: Spent 1.19 s on a formula simplification. DAG size of input: 264 DAG size of output: 265 [2021-06-06 05:19:32,145 WARN L205 SmtUtils]: Spent 1.08 s on a formula simplification. DAG size of input: 263 DAG size of output: 264 [2021-06-06 05:19:35,639 WARN L205 SmtUtils]: Spent 3.48 s on a formula simplification. DAG size of input: 264 DAG size of output: 311 [2021-06-06 05:19:36,042 WARN L205 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 130 [2021-06-06 05:19:36,364 WARN L205 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 161 DAG size of output: 151 [2021-06-06 05:19:38,556 WARN L205 SmtUtils]: Spent 2.01 s on a formula simplification. DAG size of input: 345 DAG size of output: 321 [2021-06-06 05:19:39,575 WARN L205 SmtUtils]: Spent 1.02 s on a formula simplification. DAG size of input: 259 DAG size of output: 261 [2021-06-06 05:19:40,586 WARN L205 SmtUtils]: Spent 1.01 s on a formula simplification. DAG size of input: 259 DAG size of output: 261 [2021-06-06 05:19:41,740 WARN L205 SmtUtils]: Spent 1.15 s on a formula simplification. DAG size of input: 263 DAG size of output: 265 [2021-06-06 05:19:41,743 INFO L550 ElimStorePlain]: Start of recursive call 4: 2 dim-0 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2021-06-06 05:19:43,408 WARN L205 SmtUtils]: Spent 1.66 s on a formula simplification. DAG size of input: 264 DAG size of output: 252 [2021-06-06 05:19:43,409 INFO L628 ElimStorePlain]: treesize reduction 1423, result has 94.1 percent of original size [2021-06-06 05:19:44,550 WARN L205 SmtUtils]: Spent 1.14 s on a formula simplification. DAG size of input: 253 DAG size of output: 255 [2021-06-06 05:19:45,471 WARN L205 SmtUtils]: Spent 917.00 ms on a formula simplification. DAG size of input: 242 DAG size of output: 244 [2021-06-06 05:19:45,788 WARN L205 SmtUtils]: Spent 314.00 ms on a formula simplification. DAG size of input: 199 DAG size of output: 201 [2021-06-06 05:19:46,117 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 143 [2021-06-06 05:19:46,568 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 143 [2021-06-06 05:19:47,564 WARN L205 SmtUtils]: Spent 397.00 ms on a formula simplification. DAG size of input: 199 DAG size of output: 201 [2021-06-06 05:19:47,815 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 143 [2021-06-06 05:19:48,267 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 143 [2021-06-06 05:19:48,565 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-06-06 05:19:48,565 INFO L247 ElimStorePlain]: Needed 4 recursive calls to eliminate 4 variables, input treesize:103, output treesize:3 [2021-06-06 05:19:48,600 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 58 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 05:19:48,601 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1134582157] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 05:19:48,601 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-06 05:19:48,601 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 24] total 46 [2021-06-06 05:19:48,603 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [559645498] [2021-06-06 05:19:48,604 INFO L462 AbstractCegarLoop]: Interpolant automaton has 46 states [2021-06-06 05:19:48,604 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-06 05:19:48,604 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2021-06-06 05:19:48,605 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=152, Invalid=1918, Unknown=0, NotChecked=0, Total=2070 [2021-06-06 05:19:48,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-06 05:19:48,605 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-06 05:19:48,605 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 46 states, 46 states have (on average 1.891304347826087) internal successors, (87), 46 states have internal predecessors, (87), 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) [2021-06-06 05:19:48,606 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-06 05:19:48,606 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-06 05:19:48,606 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-06-06 05:19:48,606 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-06-06 05:19:48,606 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-06-06 05:19:48,606 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-06-06 05:19:48,606 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2021-06-06 05:19:48,606 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-06-06 05:19:48,606 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-06 05:19:49,504 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 56 [2021-06-06 05:19:51,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-06 05:19:51,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-06 05:19:51,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-06 05:19:51,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-06 05:19:51,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-06 05:19:51,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-06 05:19:51,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-06-06 05:19:51,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-06-06 05:19:51,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-06-06 05:19:51,323 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2021-06-06 05:19:51,324 INFO L430 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-06 05:19:51,324 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-06 05:19:51,324 INFO L82 PathProgramCache]: Analyzing trace with hash 1387257236, now seen corresponding path program 6 times [2021-06-06 05:19:51,324 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-06 05:19:51,324 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [425156720] [2021-06-06 05:19:51,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-06 05:19:51,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 05:19:52,602 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 0 proven. 78 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 05:19:52,602 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-06 05:19:52,602 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [425156720] [2021-06-06 05:19:52,602 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [425156720] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 05:19:52,602 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [85307518] [2021-06-06 05:19:52,602 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 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 [2021-06-06 05:19:52,683 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 7 check-sat command(s) [2021-06-06 05:19:52,684 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-06 05:19:52,685 WARN L261 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 62 conjunts are in the unsatisfiable core [2021-06-06 05:19:52,687 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-06 05:19:54,500 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 05:19:54,501 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-06 05:19:54,502 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 05:19:54,503 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-06 05:19:54,504 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 8 select indices, 8 select index equivalence classes, 15 disjoint index pairs (out of 28 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 119 treesize of output 93 [2021-06-06 05:19:54,524 INFO L550 ElimStorePlain]: Start of recursive call 2: 6 dim-0 vars, End of recursive call: 6 dim-0 vars, and 1 xjuncts. [2021-06-06 05:19:54,539 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-06 05:19:54,542 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 05:19:54,542 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-06 05:19:54,543 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 05:19:54,544 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-06 05:19:54,544 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 8 select indices, 8 select index equivalence classes, 15 disjoint index pairs (out of 28 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 93 treesize of output 67 [2021-06-06 05:19:54,547 INFO L550 ElimStorePlain]: Start of recursive call 3: 6 dim-0 vars, End of recursive call: 6 dim-0 vars, and 1 xjuncts. [2021-06-06 05:19:54,562 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-06 05:19:54,639 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-06-06 05:19:54,640 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 67 treesize of output 199 [2021-06-06 05:19:55,102 WARN L205 SmtUtils]: Spent 446.00 ms on a formula simplification. DAG size of input: 197 DAG size of output: 182 [2021-06-06 05:19:55,517 WARN L205 SmtUtils]: Spent 413.00 ms on a formula simplification. DAG size of input: 197 DAG size of output: 182 [2021-06-06 05:19:55,978 WARN L205 SmtUtils]: Spent 458.00 ms on a formula simplification. DAG size of input: 214 DAG size of output: 199 [2021-06-06 05:19:57,414 WARN L205 SmtUtils]: Spent 1.43 s on a formula simplification. DAG size of input: 197 DAG size of output: 217 [2021-06-06 05:19:58,991 WARN L205 SmtUtils]: Spent 1.57 s on a formula simplification. DAG size of input: 192 DAG size of output: 204 [2021-06-06 05:20:00,615 WARN L205 SmtUtils]: Spent 1.61 s on a formula simplification. DAG size of input: 187 DAG size of output: 199 [2021-06-06 05:20:00,929 WARN L205 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 134 DAG size of output: 119 [2021-06-06 05:20:03,624 WARN L205 SmtUtils]: Spent 2.60 s on a formula simplification. DAG size of input: 396 DAG size of output: 343 [2021-06-06 05:20:10,505 WARN L205 SmtUtils]: Spent 6.88 s on a formula simplification. DAG size of input: 462 DAG size of output: 405 [2021-06-06 05:20:27,389 WARN L205 SmtUtils]: Spent 16.88 s on a formula simplification. DAG size of input: 530 DAG size of output: 472 [2021-06-06 05:20:44,363 WARN L205 SmtUtils]: Spent 16.97 s on a formula simplification. DAG size of input: 530 DAG size of output: 472 [2021-06-06 05:21:02,489 WARN L205 SmtUtils]: Spent 18.12 s on a formula simplification. DAG size of input: 542 DAG size of output: 484 [2021-06-06 05:21:59,605 WARN L205 SmtUtils]: Spent 57.11 s on a formula simplification. DAG size of input: 484 DAG size of output: 587 [2021-06-06 05:22:16,011 WARN L205 SmtUtils]: Spent 16.40 s on a formula simplification. DAG size of input: 476 DAG size of output: 476 [2021-06-06 05:22:16,288 WARN L205 SmtUtils]: Spent 274.00 ms on a formula simplification. DAG size of input: 168 DAG size of output: 168 [2021-06-06 05:22:16,536 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 126 [2021-06-06 05:22:16,683 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 120 [2021-06-06 05:22:16,884 WARN L205 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 167 DAG size of output: 155 [2021-06-06 05:22:17,237 WARN L205 SmtUtils]: Spent 351.00 ms on a formula simplification. DAG size of input: 196 DAG size of output: 184 [2021-06-06 05:22:17,452 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 141 [2021-06-06 05:22:17,735 WARN L205 SmtUtils]: Spent 281.00 ms on a formula simplification. DAG size of input: 162 DAG size of output: 162 [2021-06-06 05:22:18,917 WARN L205 SmtUtils]: Spent 1.18 s on a formula simplification. DAG size of input: 269 DAG size of output: 260 [2021-06-06 05:22:19,114 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 133 [2021-06-06 05:22:19,359 WARN L205 SmtUtils]: Spent 243.00 ms on a formula simplification. DAG size of input: 161 DAG size of output: 155 [2021-06-06 05:22:19,981 WARN L205 SmtUtils]: Spent 620.00 ms on a formula simplification. DAG size of input: 186 DAG size of output: 179 [2021-06-06 05:22:23,713 WARN L205 SmtUtils]: Spent 3.73 s on a formula simplification. DAG size of input: 386 DAG size of output: 360 [2021-06-06 05:22:30,324 WARN L205 SmtUtils]: Spent 6.61 s on a formula simplification. DAG size of input: 409 DAG size of output: 409 [2021-06-06 05:22:32,795 WARN L205 SmtUtils]: Spent 2.46 s on a formula simplification. DAG size of input: 349 DAG size of output: 349 [2021-06-06 05:22:32,937 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 126 [2021-06-06 05:22:33,235 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 160 DAG size of output: 158 [2021-06-06 05:22:33,551 WARN L205 SmtUtils]: Spent 257.00 ms on a formula simplification. DAG size of input: 212 DAG size of output: 207 [2021-06-06 05:22:33,748 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 134 DAG size of output: 135 [2021-06-06 05:22:34,573 WARN L205 SmtUtils]: Spent 817.00 ms on a formula simplification. DAG size of input: 271 DAG size of output: 266 [2021-06-06 05:22:35,363 WARN L205 SmtUtils]: Spent 782.00 ms on a formula simplification. DAG size of input: 280 DAG size of output: 280 [2021-06-06 05:22:35,598 WARN L205 SmtUtils]: Spent 231.00 ms on a formula simplification. DAG size of input: 228 DAG size of output: 228 [2021-06-06 05:22:36,156 WARN L205 SmtUtils]: Spent 221.00 ms on a formula simplification. DAG size of input: 292 DAG size of output: 262 [2021-06-06 05:22:36,627 WARN L205 SmtUtils]: Spent 218.00 ms on a formula simplification. DAG size of input: 236 DAG size of output: 226 [2021-06-06 05:22:37,465 WARN L205 SmtUtils]: Spent 836.00 ms on a formula simplification. DAG size of input: 419 DAG size of output: 385 [2021-06-06 05:22:37,828 WARN L205 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 130 [2021-06-06 05:22:38,056 WARN L205 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 167 DAG size of output: 150 [2021-06-06 05:22:40,975 WARN L205 SmtUtils]: Spent 2.92 s on a formula simplification. DAG size of input: 531 DAG size of output: 487 [2021-06-06 05:22:45,992 WARN L205 SmtUtils]: Spent 700.00 ms on a formula simplification. DAG size of input: 2296 DAG size of output: 2269 Received shutdown request... Cannot interrupt operation gracefully because timeout expired. Forcing shutdown