/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-FA-SemanticLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/chl/node-subst.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-7cd14b8b9f04096d8ddfd3d9cd8a4ac590fe5404-7cd14b8 [2021-03-11 15:43:10,135 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-03-11 15:43:10,138 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-03-11 15:43:10,174 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-03-11 15:43:10,175 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-03-11 15:43:10,176 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-03-11 15:43:10,178 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-03-11 15:43:10,180 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-03-11 15:43:10,182 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-03-11 15:43:10,183 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-03-11 15:43:10,184 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-03-11 15:43:10,185 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-03-11 15:43:10,186 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-03-11 15:43:10,187 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-03-11 15:43:10,188 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-03-11 15:43:10,189 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-03-11 15:43:10,190 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-03-11 15:43:10,191 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-03-11 15:43:10,193 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-03-11 15:43:10,195 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-03-11 15:43:10,196 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-03-11 15:43:10,197 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-03-11 15:43:10,199 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-03-11 15:43:10,199 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-03-11 15:43:10,202 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-03-11 15:43:10,214 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-03-11 15:43:10,215 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-03-11 15:43:10,216 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-03-11 15:43:10,222 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-FA-SemanticLbe.epf [2021-03-11 15:43:10,269 INFO L113 SettingsManager]: Loading preferences was successful [2021-03-11 15:43:10,270 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-03-11 15:43:10,275 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-03-11 15:43:10,275 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-03-11 15:43:10,275 INFO L138 SettingsManager]: * Use SBE=true [2021-03-11 15:43:10,275 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-03-11 15:43:10,275 INFO L138 SettingsManager]: * sizeof long=4 [2021-03-11 15:43:10,275 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-03-11 15:43:10,276 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-03-11 15:43:10,276 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-03-11 15:43:10,277 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-03-11 15:43:10,277 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-03-11 15:43:10,277 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-03-11 15:43:10,277 INFO L138 SettingsManager]: * sizeof long double=12 [2021-03-11 15:43:10,277 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-03-11 15:43:10,278 INFO L138 SettingsManager]: * Use constant arrays=true [2021-03-11 15:43:10,278 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-03-11 15:43:10,278 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-03-11 15:43:10,278 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-03-11 15:43:10,278 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-03-11 15:43:10,279 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-03-11 15:43:10,279 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-11 15:43:10,279 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-03-11 15:43:10,279 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-03-11 15:43:10,279 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-03-11 15:43:10,280 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-03-11 15:43:10,280 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-03-11 15:43:10,280 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-03-11 15:43:10,280 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-03-11 15:43:10,623 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-03-11 15:43:10,645 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-03-11 15:43:10,648 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-03-11 15:43:10,649 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-03-11 15:43:10,650 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-03-11 15:43:10,651 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/chl/node-subst.wvr.bpl [2021-03-11 15:43:10,652 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/chl/node-subst.wvr.bpl' [2021-03-11 15:43:10,687 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-03-11 15:43:10,692 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-03-11 15:43:10,693 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-03-11 15:43:10,693 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-03-11 15:43:10,693 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-03-11 15:43:10,706 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "node-subst.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.03 03:43:10" (1/1) ... [2021-03-11 15:43:10,713 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "node-subst.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.03 03:43:10" (1/1) ... [2021-03-11 15:43:10,720 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-03-11 15:43:10,722 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-03-11 15:43:10,722 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-03-11 15:43:10,722 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-03-11 15:43:10,730 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "node-subst.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.03 03:43:10" (1/1) ... [2021-03-11 15:43:10,730 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "node-subst.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.03 03:43:10" (1/1) ... [2021-03-11 15:43:10,731 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "node-subst.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.03 03:43:10" (1/1) ... [2021-03-11 15:43:10,732 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "node-subst.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.03 03:43:10" (1/1) ... [2021-03-11 15:43:10,741 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "node-subst.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.03 03:43:10" (1/1) ... [2021-03-11 15:43:10,742 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "node-subst.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.03 03:43:10" (1/1) ... [2021-03-11 15:43:10,743 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "node-subst.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.03 03:43:10" (1/1) ... [2021-03-11 15:43:10,744 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-03-11 15:43:10,745 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-03-11 15:43:10,746 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-03-11 15:43:10,746 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-03-11 15:43:10,747 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "node-subst.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.03 03:43:10" (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 [2021-03-11 15:43:10,821 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2021-03-11 15:43:10,821 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-03-11 15:43:10,821 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-03-11 15:43:10,822 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2021-03-11 15:43:10,822 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-03-11 15:43:10,822 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-03-11 15:43:10,822 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-03-11 15:43:10,822 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-03-11 15:43:10,822 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-03-11 15:43:10,822 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2021-03-11 15:43:10,822 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-03-11 15:43:10,822 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-03-11 15:43:10,824 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-03-11 15:43:11,106 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-03-11 15:43:11,107 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-03-11 15:43:11,109 INFO L202 PluginConnector]: Adding new model node-subst.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.03 03:43:11 BoogieIcfgContainer [2021-03-11 15:43:11,109 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-03-11 15:43:11,110 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-03-11 15:43:11,110 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-03-11 15:43:11,113 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-03-11 15:43:11,114 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "node-subst.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.03 03:43:10" (1/2) ... [2021-03-11 15:43:11,115 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6de88a43 and model type node-subst.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.03 03:43:11, skipping insertion in model container [2021-03-11 15:43:11,115 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "node-subst.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.03 03:43:11" (2/2) ... [2021-03-11 15:43:11,116 INFO L111 eAbstractionObserver]: Analyzing ICFG node-subst.wvr.bpl [2021-03-11 15:43:11,138 WARN L142 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-03-11 15:43:11,138 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-03-11 15:43:11,142 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-03-11 15:43:11,143 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-03-11 15:43:11,208 INFO L149 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2021-03-11 15:43:11,240 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-03-11 15:43:11,270 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-11 15:43:11,271 INFO L377 AbstractCegarLoop]: Hoare is true [2021-03-11 15:43:11,271 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-11 15:43:11,271 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-11 15:43:11,271 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-11 15:43:11,271 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-11 15:43:11,271 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-11 15:43:11,271 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-11 15:43:11,294 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-11 15:43:11,307 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 29 places, 19 transitions, 62 flow [2021-03-11 15:43:11,315 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 29 places, 19 transitions, 62 flow [2021-03-11 15:43:11,317 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 29 places, 19 transitions, 62 flow [2021-03-11 15:43:11,360 INFO L129 PetriNetUnfolder]: 0/16 cut-off events. [2021-03-11 15:43:11,360 INFO L130 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2021-03-11 15:43:11,363 INFO L84 FinitePrefix]: Finished finitePrefix Result has 29 conditions, 16 events. 0/16 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 14 event pairs, 0 based on Foata normal form. 0/15 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2021-03-11 15:43:11,367 INFO L116 LiptonReduction]: Number of co-enabled transitions 48 [2021-03-11 15:43:11,698 INFO L131 LiptonReduction]: Checked pairs total: 42 [2021-03-11 15:43:11,698 INFO L133 LiptonReduction]: Total number of compositions: 6 [2021-03-11 15:43:11,712 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 24 places, 14 transitions, 52 flow [2021-03-11 15:43:11,724 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 24 states, 22 states have (on average 1.7272727272727273) internal successors, (38), 23 states have internal predecessors, (38), 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) [2021-03-11 15:43:11,725 INFO L276 IsEmpty]: Start isEmpty. Operand has 24 states, 22 states have (on average 1.7272727272727273) internal successors, (38), 23 states have internal predecessors, (38), 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) [2021-03-11 15:43:11,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-03-11 15:43:11,733 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 15:43:11,733 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 15:43:11,734 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-11 15:43:11,739 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 15:43:11,739 INFO L82 PathProgramCache]: Analyzing trace with hash -575214304, now seen corresponding path program 1 times [2021-03-11 15:43:11,749 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 15:43:11,749 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1281675053] [2021-03-11 15:43:11,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 15:43:11,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 15:43:12,190 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 15:43:12,191 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 15:43:12,260 INFO L142 QuantifierPusher]: treesize reduction 542, result has 34.6 percent of original size [2021-03-11 15:43:12,267 INFO L147 QuantifierPusher]: treesize reduction 15, result has 94.8 percent of original size 272 [2021-03-11 15:43:12,471 WARN L205 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 33 [2021-03-11 15:43:12,512 INFO L142 QuantifierPusher]: treesize reduction 259, result has 56.4 percent of original size [2021-03-11 15:43:12,523 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 335 [2021-03-11 15:43:12,675 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 25 [2021-03-11 15:43:12,689 INFO L142 QuantifierPusher]: treesize reduction 189, result has 34.1 percent of original size [2021-03-11 15:43:12,693 INFO L147 QuantifierPusher]: treesize reduction 10, result has 89.8 percent of original size 88 [2021-03-11 15:43:12,808 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 15:43:12,808 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1281675053] [2021-03-11 15:43:12,810 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 15:43:12,810 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-11 15:43:12,810 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2103748936] [2021-03-11 15:43:12,815 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-11 15:43:12,815 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 15:43:12,831 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-11 15:43:12,833 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-03-11 15:43:12,835 INFO L87 Difference]: Start difference. First operand has 24 states, 22 states have (on average 1.7272727272727273) internal successors, (38), 23 states have internal predecessors, (38), 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) Second operand has 5 states, 4 states have (on average 2.5) internal successors, (10), 5 states have internal predecessors, (10), 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) [2021-03-11 15:43:13,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 15:43:13,046 INFO L93 Difference]: Finished difference Result 34 states and 47 transitions. [2021-03-11 15:43:13,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-11 15:43:13,048 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.5) internal successors, (10), 5 states have internal predecessors, (10), 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) Word has length 10 [2021-03-11 15:43:13,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 15:43:13,058 INFO L225 Difference]: With dead ends: 34 [2021-03-11 15:43:13,058 INFO L226 Difference]: Without dead ends: 28 [2021-03-11 15:43:13,061 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 596.1ms TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-03-11 15:43:13,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2021-03-11 15:43:13,098 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 23. [2021-03-11 15:43:13,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 22 states have (on average 1.6363636363636365) internal successors, (36), 22 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 15:43:13,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 36 transitions. [2021-03-11 15:43:13,104 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 36 transitions. Word has length 10 [2021-03-11 15:43:13,104 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 15:43:13,104 INFO L480 AbstractCegarLoop]: Abstraction has 23 states and 36 transitions. [2021-03-11 15:43:13,104 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 4 states have (on average 2.5) internal successors, (10), 5 states have internal predecessors, (10), 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) [2021-03-11 15:43:13,104 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 36 transitions. [2021-03-11 15:43:13,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-03-11 15:43:13,105 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 15:43:13,106 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 15:43:13,106 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-03-11 15:43:13,106 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-11 15:43:13,107 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 15:43:13,107 INFO L82 PathProgramCache]: Analyzing trace with hash -485841304, now seen corresponding path program 2 times [2021-03-11 15:43:13,108 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 15:43:13,108 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1008682637] [2021-03-11 15:43:13,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 15:43:13,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 15:43:13,304 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 15:43:13,304 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 15:43:13,333 INFO L142 QuantifierPusher]: treesize reduction 567, result has 43.4 percent of original size [2021-03-11 15:43:13,344 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 435 [2021-03-11 15:43:13,489 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 43 [2021-03-11 15:43:13,520 INFO L142 QuantifierPusher]: treesize reduction 551, result has 53.5 percent of original size [2021-03-11 15:43:13,531 INFO L147 QuantifierPusher]: treesize reduction 9, result has 98.6 percent of original size 625 [2021-03-11 15:43:13,890 WARN L205 SmtUtils]: Spent 341.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 64 [2021-03-11 15:43:13,905 INFO L142 QuantifierPusher]: treesize reduction 366, result has 41.4 percent of original size [2021-03-11 15:43:13,910 INFO L147 QuantifierPusher]: treesize reduction 12, result has 95.4 percent of original size 247 [2021-03-11 15:43:14,040 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 19 [2021-03-11 15:43:14,042 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 15:43:14,042 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1008682637] [2021-03-11 15:43:14,042 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 15:43:14,043 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-11 15:43:14,043 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [906126247] [2021-03-11 15:43:14,044 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-11 15:43:14,044 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 15:43:14,045 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-11 15:43:14,045 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-03-11 15:43:14,045 INFO L87 Difference]: Start difference. First operand 23 states and 36 transitions. Second operand has 5 states, 4 states have (on average 2.5) internal successors, (10), 5 states have internal predecessors, (10), 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) [2021-03-11 15:43:14,189 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2021-03-11 15:43:14,350 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2021-03-11 15:43:14,366 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 15:43:14,366 INFO L93 Difference]: Finished difference Result 33 states and 44 transitions. [2021-03-11 15:43:14,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-11 15:43:14,367 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.5) internal successors, (10), 5 states have internal predecessors, (10), 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) Word has length 10 [2021-03-11 15:43:14,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 15:43:14,367 INFO L225 Difference]: With dead ends: 33 [2021-03-11 15:43:14,368 INFO L226 Difference]: Without dead ends: 27 [2021-03-11 15:43:14,368 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 914.8ms TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-03-11 15:43:14,369 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2021-03-11 15:43:14,372 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 22. [2021-03-11 15:43:14,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 21 states have (on average 1.619047619047619) internal successors, (34), 21 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 15:43:14,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 34 transitions. [2021-03-11 15:43:14,373 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 34 transitions. Word has length 10 [2021-03-11 15:43:14,373 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 15:43:14,374 INFO L480 AbstractCegarLoop]: Abstraction has 22 states and 34 transitions. [2021-03-11 15:43:14,374 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 4 states have (on average 2.5) internal successors, (10), 5 states have internal predecessors, (10), 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) [2021-03-11 15:43:14,374 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 34 transitions. [2021-03-11 15:43:14,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-03-11 15:43:14,374 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 15:43:14,375 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 15:43:14,375 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-03-11 15:43:14,375 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-11 15:43:14,375 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 15:43:14,376 INFO L82 PathProgramCache]: Analyzing trace with hash 200543336, now seen corresponding path program 3 times [2021-03-11 15:43:14,376 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 15:43:14,376 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [673947746] [2021-03-11 15:43:14,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 15:43:14,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 15:43:14,456 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 15:43:14,456 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 15:43:14,462 INFO L142 QuantifierPusher]: treesize reduction 368, result has 11.5 percent of original size [2021-03-11 15:43:14,463 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-03-11 15:43:14,496 INFO L142 QuantifierPusher]: treesize reduction 570, result has 37.7 percent of original size [2021-03-11 15:43:14,500 INFO L147 QuantifierPusher]: treesize reduction 61, result has 82.3 percent of original size 284 [2021-03-11 15:43:14,605 INFO L142 QuantifierPusher]: treesize reduction 762, result has 22.2 percent of original size [2021-03-11 15:43:14,608 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 218 [2021-03-11 15:43:14,708 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 15:43:14,708 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [673947746] [2021-03-11 15:43:14,708 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 15:43:14,709 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-11 15:43:14,709 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1728662011] [2021-03-11 15:43:14,709 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-11 15:43:14,709 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 15:43:14,710 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-11 15:43:14,711 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-03-11 15:43:14,711 INFO L87 Difference]: Start difference. First operand 22 states and 34 transitions. Second operand has 5 states, 4 states have (on average 2.5) internal successors, (10), 5 states have internal predecessors, (10), 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) [2021-03-11 15:43:14,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 15:43:14,846 INFO L93 Difference]: Finished difference Result 31 states and 41 transitions. [2021-03-11 15:43:14,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-11 15:43:14,847 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.5) internal successors, (10), 5 states have internal predecessors, (10), 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) Word has length 10 [2021-03-11 15:43:14,847 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 15:43:14,848 INFO L225 Difference]: With dead ends: 31 [2021-03-11 15:43:14,848 INFO L226 Difference]: Without dead ends: 25 [2021-03-11 15:43:14,849 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 311.9ms TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-03-11 15:43:14,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2021-03-11 15:43:14,853 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 20. [2021-03-11 15:43:14,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 19 states have (on average 1.5263157894736843) internal successors, (29), 19 states have internal predecessors, (29), 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) [2021-03-11 15:43:14,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 29 transitions. [2021-03-11 15:43:14,854 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 29 transitions. Word has length 10 [2021-03-11 15:43:14,855 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 15:43:14,855 INFO L480 AbstractCegarLoop]: Abstraction has 20 states and 29 transitions. [2021-03-11 15:43:14,855 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 4 states have (on average 2.5) internal successors, (10), 5 states have internal predecessors, (10), 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) [2021-03-11 15:43:14,855 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 29 transitions. [2021-03-11 15:43:14,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-03-11 15:43:14,856 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 15:43:14,857 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 15:43:14,857 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-03-11 15:43:14,857 INFO L428 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-11 15:43:14,858 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 15:43:14,858 INFO L82 PathProgramCache]: Analyzing trace with hash 204060596, now seen corresponding path program 4 times [2021-03-11 15:43:14,858 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 15:43:14,858 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [662813117] [2021-03-11 15:43:14,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 15:43:14,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 15:43:14,968 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 15:43:14,969 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 15:43:14,972 INFO L142 QuantifierPusher]: treesize reduction 103, result has 31.8 percent of original size [2021-03-11 15:43:14,973 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-03-11 15:43:14,994 INFO L142 QuantifierPusher]: treesize reduction 191, result has 35.5 percent of original size [2021-03-11 15:43:14,995 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 105 [2021-03-11 15:43:15,082 INFO L142 QuantifierPusher]: treesize reduction 156, result has 43.1 percent of original size [2021-03-11 15:43:15,084 INFO L147 QuantifierPusher]: treesize reduction 34, result has 71.2 percent of original size 84 [2021-03-11 15:43:15,140 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 15:43:15,140 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [662813117] [2021-03-11 15:43:15,141 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 15:43:15,141 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-11 15:43:15,141 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2068779865] [2021-03-11 15:43:15,142 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-11 15:43:15,142 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 15:43:15,145 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-11 15:43:15,145 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-03-11 15:43:15,146 INFO L87 Difference]: Start difference. First operand 20 states and 29 transitions. Second operand has 5 states, 4 states have (on average 2.5) internal successors, (10), 5 states have internal predecessors, (10), 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) [2021-03-11 15:43:15,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 15:43:15,277 INFO L93 Difference]: Finished difference Result 28 states and 38 transitions. [2021-03-11 15:43:15,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-11 15:43:15,278 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.5) internal successors, (10), 5 states have internal predecessors, (10), 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) Word has length 10 [2021-03-11 15:43:15,278 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 15:43:15,279 INFO L225 Difference]: With dead ends: 28 [2021-03-11 15:43:15,279 INFO L226 Difference]: Without dead ends: 16 [2021-03-11 15:43:15,280 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 241.1ms TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-03-11 15:43:15,281 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2021-03-11 15:43:15,284 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2021-03-11 15:43:15,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 15 states have (on average 1.3333333333333333) internal successors, (20), 15 states have internal predecessors, (20), 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) [2021-03-11 15:43:15,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 20 transitions. [2021-03-11 15:43:15,287 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 20 transitions. Word has length 10 [2021-03-11 15:43:15,287 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 15:43:15,287 INFO L480 AbstractCegarLoop]: Abstraction has 16 states and 20 transitions. [2021-03-11 15:43:15,288 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 4 states have (on average 2.5) internal successors, (10), 5 states have internal predecessors, (10), 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) [2021-03-11 15:43:15,288 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 20 transitions. [2021-03-11 15:43:15,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-03-11 15:43:15,289 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 15:43:15,289 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 15:43:15,289 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-03-11 15:43:15,289 INFO L428 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-11 15:43:15,291 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 15:43:15,292 INFO L82 PathProgramCache]: Analyzing trace with hash -1345310480, now seen corresponding path program 5 times [2021-03-11 15:43:15,292 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 15:43:15,292 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2046376740] [2021-03-11 15:43:15,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 15:43:15,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 15:43:15,419 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 15:43:15,419 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 15:43:15,425 INFO L142 QuantifierPusher]: treesize reduction 106, result has 45.6 percent of original size [2021-03-11 15:43:15,429 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 89 [2021-03-11 15:43:15,499 INFO L142 QuantifierPusher]: treesize reduction 1318, result has 15.9 percent of original size [2021-03-11 15:43:15,501 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 249 [2021-03-11 15:43:15,699 WARN L205 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 50 [2021-03-11 15:43:15,706 INFO L142 QuantifierPusher]: treesize reduction 377, result has 24.0 percent of original size [2021-03-11 15:43:15,708 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 119 [2021-03-11 15:43:15,806 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 15:43:15,807 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2046376740] [2021-03-11 15:43:15,807 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 15:43:15,807 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-11 15:43:15,807 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1076289830] [2021-03-11 15:43:15,807 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-11 15:43:15,807 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 15:43:15,808 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-11 15:43:15,808 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-03-11 15:43:15,808 INFO L87 Difference]: Start difference. First operand 16 states and 20 transitions. Second operand has 5 states, 4 states have (on average 2.5) internal successors, (10), 5 states have internal predecessors, (10), 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) [2021-03-11 15:43:16,003 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 15:43:16,004 INFO L93 Difference]: Finished difference Result 20 states and 23 transitions. [2021-03-11 15:43:16,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-11 15:43:16,004 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.5) internal successors, (10), 5 states have internal predecessors, (10), 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) Word has length 10 [2021-03-11 15:43:16,005 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 15:43:16,005 INFO L225 Difference]: With dead ends: 20 [2021-03-11 15:43:16,005 INFO L226 Difference]: Without dead ends: 15 [2021-03-11 15:43:16,005 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 530.6ms TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-03-11 15:43:16,006 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2021-03-11 15:43:16,008 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2021-03-11 15:43:16,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 14 states have (on average 1.2857142857142858) internal successors, (18), 14 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) [2021-03-11 15:43:16,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 18 transitions. [2021-03-11 15:43:16,008 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 18 transitions. Word has length 10 [2021-03-11 15:43:16,009 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 15:43:16,009 INFO L480 AbstractCegarLoop]: Abstraction has 15 states and 18 transitions. [2021-03-11 15:43:16,009 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 4 states have (on average 2.5) internal successors, (10), 5 states have internal predecessors, (10), 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) [2021-03-11 15:43:16,009 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 18 transitions. [2021-03-11 15:43:16,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-03-11 15:43:16,009 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 15:43:16,010 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 15:43:16,010 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-03-11 15:43:16,010 INFO L428 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-11 15:43:16,010 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 15:43:16,010 INFO L82 PathProgramCache]: Analyzing trace with hash -1320343700, now seen corresponding path program 6 times [2021-03-11 15:43:16,011 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 15:43:16,011 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1105601394] [2021-03-11 15:43:16,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 15:43:16,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 15:43:16,101 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 15:43:16,102 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 15:43:16,146 INFO L142 QuantifierPusher]: treesize reduction 5818, result has 22.6 percent of original size [2021-03-11 15:43:16,153 INFO L147 QuantifierPusher]: treesize reduction 118, result has 93.0 percent of original size 1577 [2021-03-11 15:43:16,452 WARN L205 SmtUtils]: Spent 290.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 40 [2021-03-11 15:43:16,499 INFO L142 QuantifierPusher]: treesize reduction 6561, result has 20.6 percent of original size [2021-03-11 15:43:16,509 INFO L147 QuantifierPusher]: treesize reduction 625, result has 63.3 percent of original size 1080 [2021-03-11 15:43:16,777 WARN L205 SmtUtils]: Spent 256.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 38 [2021-03-11 15:43:16,846 INFO L142 QuantifierPusher]: treesize reduction 7282, result has 8.5 percent of original size [2021-03-11 15:43:16,853 INFO L147 QuantifierPusher]: treesize reduction 460, result has 32.1 percent of original size 217 [2021-03-11 15:43:17,055 WARN L205 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 23 [2021-03-11 15:43:17,056 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 15:43:17,056 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1105601394] [2021-03-11 15:43:17,056 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 15:43:17,056 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-11 15:43:17,057 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1650657641] [2021-03-11 15:43:17,057 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-11 15:43:17,057 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 15:43:17,057 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-11 15:43:17,058 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-03-11 15:43:17,058 INFO L87 Difference]: Start difference. First operand 15 states and 18 transitions. Second operand has 5 states, 4 states have (on average 2.5) internal successors, (10), 5 states have internal predecessors, (10), 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) [2021-03-11 15:43:17,249 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 15:43:17,250 INFO L93 Difference]: Finished difference Result 14 states and 17 transitions. [2021-03-11 15:43:17,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-11 15:43:17,250 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.5) internal successors, (10), 5 states have internal predecessors, (10), 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) Word has length 10 [2021-03-11 15:43:17,250 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 15:43:17,251 INFO L225 Difference]: With dead ends: 14 [2021-03-11 15:43:17,251 INFO L226 Difference]: Without dead ends: 0 [2021-03-11 15:43:17,251 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 941.4ms TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-03-11 15:43:17,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-03-11 15:43:17,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-03-11 15:43:17,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 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) [2021-03-11 15:43:17,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-03-11 15:43:17,252 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 10 [2021-03-11 15:43:17,252 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 15:43:17,252 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-03-11 15:43:17,252 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 4 states have (on average 2.5) internal successors, (10), 5 states have internal predecessors, (10), 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) [2021-03-11 15:43:17,252 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-03-11 15:43:17,252 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-03-11 15:43:17,252 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-03-11 15:43:17,256 INFO L202 PluginConnector]: Adding new model node-subst.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.03 03:43:17 BasicIcfg [2021-03-11 15:43:17,256 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-03-11 15:43:17,257 INFO L168 Benchmark]: Toolchain (without parser) took 6568.04 ms. Allocated memory was 255.9 MB in the beginning and 402.7 MB in the end (delta: 146.8 MB). Free memory was 236.5 MB in the beginning and 346.0 MB in the end (delta: -109.5 MB). Peak memory consumption was 38.8 MB. Max. memory is 16.0 GB. [2021-03-11 15:43:17,257 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.20 ms. Allocated memory is still 255.9 MB. Free memory is still 237.7 MB. There was no memory consumed. Max. memory is 16.0 GB. [2021-03-11 15:43:17,257 INFO L168 Benchmark]: Boogie Procedure Inliner took 27.52 ms. Allocated memory is still 255.9 MB. Free memory was 236.0 MB in the beginning and 234.5 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-11 15:43:17,258 INFO L168 Benchmark]: Boogie Preprocessor took 23.08 ms. Allocated memory is still 255.9 MB. Free memory was 234.5 MB in the beginning and 233.6 MB in the end (delta: 898.5 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-11 15:43:17,258 INFO L168 Benchmark]: RCFGBuilder took 363.44 ms. Allocated memory is still 255.9 MB. Free memory was 233.5 MB in the beginning and 233.3 MB in the end (delta: 192.4 kB). Peak memory consumption was 17.8 MB. Max. memory is 16.0 GB. [2021-03-11 15:43:17,258 INFO L168 Benchmark]: TraceAbstraction took 6145.58 ms. Allocated memory was 255.9 MB in the beginning and 402.7 MB in the end (delta: 146.8 MB). Free memory was 232.8 MB in the beginning and 346.0 MB in the end (delta: -113.2 MB). Peak memory consumption was 33.6 MB. Max. memory is 16.0 GB. [2021-03-11 15:43:17,260 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Boogie PL CUP Parser took 0.20 ms. Allocated memory is still 255.9 MB. Free memory is still 237.7 MB. There was no memory consumed. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 27.52 ms. Allocated memory is still 255.9 MB. Free memory was 236.0 MB in the beginning and 234.5 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 23.08 ms. Allocated memory is still 255.9 MB. Free memory was 234.5 MB in the beginning and 233.6 MB in the end (delta: 898.5 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 363.44 ms. Allocated memory is still 255.9 MB. Free memory was 233.5 MB in the beginning and 233.3 MB in the end (delta: 192.4 kB). Peak memory consumption was 17.8 MB. Max. memory is 16.0 GB. * TraceAbstraction took 6145.58 ms. Allocated memory was 255.9 MB in the beginning and 402.7 MB in the end (delta: 146.8 MB). Free memory was 232.8 MB in the beginning and 346.0 MB in the end (delta: -113.2 MB). Peak memory consumption was 33.6 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 384.0ms, 29 PlacesBefore, 24 PlacesAfterwards, 19 TransitionsBefore, 14 TransitionsAfterwards, 48 CoEnabledTransitionPairs, 2 FixpointIterations, 3 TrivialSequentialCompositions, 3 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 6 TotalNumberOfCompositions, 42 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 42, positive: 42, positive conditional: 0, positive unconditional: 42, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 30, positive: 30, positive conditional: 0, positive unconditional: 30, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 30, positive: 30, positive conditional: 0, positive unconditional: 30, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 42, positive: 12, positive conditional: 0, positive unconditional: 12, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 30, unknown conditional: 0, unknown unconditional: 30] , Statistics on independence cache: Total cache size (in pairs): 12, Positive cache size: 12, Positive conditional cache size: 0, Positive unconditional cache size: 12, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - PositiveResult [Line: 68]: assertion always holds For all program executions holds that assertion always holds at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 20 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 5984.9ms, OverallIterations: 6, TraceHistogramMax: 1, EmptinessCheckTime: 13.2ms, AutomataDifference: 1236.2ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 452.4ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 73 SDtfs, 100 SDslu, 117 SDs, 0 SdLazy, 80 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 118.1ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 38 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3536.2ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=24occurred in iteration=0, InterpolantAutomatonStates: 30, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 48.4ms AutomataMinimizationTime, 6 MinimizatonAttempts, 15 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 23.6ms SsaConstructionTime, 215.8ms SatisfiabilityAnalysisTime, 3843.1ms InterpolantComputationTime, 60 NumberOfCodeBlocks, 60 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 54 ConstructedInterpolants, 0 QuantifiedInterpolants, 2212 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...