/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc config/AutomizerReach.xml -s config/svcomp-Reach-64bit-Automizer_Default.epf -i ../sv-benchmarks/c/pthread-wmm/safe035_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-bitabs-178dd20 [2021-01-06 23:39:29,748 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-01-06 23:39:29,751 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-01-06 23:39:29,785 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-01-06 23:39:29,786 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-01-06 23:39:29,788 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-01-06 23:39:29,789 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-01-06 23:39:29,792 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-01-06 23:39:29,794 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-01-06 23:39:29,795 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-01-06 23:39:29,797 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-01-06 23:39:29,798 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-01-06 23:39:29,799 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-01-06 23:39:29,800 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-01-06 23:39:29,801 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-01-06 23:39:29,803 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-01-06 23:39:29,804 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-01-06 23:39:29,805 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-01-06 23:39:29,809 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-01-06 23:39:29,814 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-01-06 23:39:29,818 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-01-06 23:39:29,822 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-01-06 23:39:29,824 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-01-06 23:39:29,827 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-01-06 23:39:29,847 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-01-06 23:39:29,864 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-01-06 23:39:29,865 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-01-06 23:39:29,866 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-01-06 23:39:29,867 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-01-06 23:39:29,901 INFO L113 SettingsManager]: Loading preferences was successful [2021-01-06 23:39:29,901 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-01-06 23:39:29,903 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-01-06 23:39:29,905 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-01-06 23:39:29,905 INFO L138 SettingsManager]: * Use SBE=true [2021-01-06 23:39:29,906 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-01-06 23:39:29,906 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-01-06 23:39:29,906 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-01-06 23:39:29,906 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-01-06 23:39:29,907 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-01-06 23:39:29,908 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-01-06 23:39:29,908 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-01-06 23:39:29,908 INFO L138 SettingsManager]: * Use constant arrays=true [2021-01-06 23:39:29,909 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-01-06 23:39:29,909 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-01-06 23:39:29,909 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-01-06 23:39:29,909 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-01-06 23:39:29,909 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-01-06 23:39:29,910 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-01-06 23:39:29,910 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-01-06 23:39:29,910 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-01-06 23:39:29,910 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-01-06 23:39:29,911 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-01-06 23:39:29,911 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-01-06 23:39:29,911 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-01-06 23:39:29,911 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-bitabs/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-01-06 23:39:30,330 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-01-06 23:39:30,358 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-01-06 23:39:30,361 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-01-06 23:39:30,362 INFO L271 PluginConnector]: Initializing CDTParser... [2021-01-06 23:39:30,363 INFO L275 PluginConnector]: CDTParser initialized [2021-01-06 23:39:30,364 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-wmm/safe035_tso.opt.i [2021-01-06 23:39:30,460 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/072c7b9d4/61c6d1942ef6453ebe2afed11a317b62/FLAG29942cf1b [2021-01-06 23:39:31,256 INFO L306 CDTParser]: Found 1 translation units. [2021-01-06 23:39:31,257 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe035_tso.opt.i [2021-01-06 23:39:31,277 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/072c7b9d4/61c6d1942ef6453ebe2afed11a317b62/FLAG29942cf1b [2021-01-06 23:39:31,497 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/072c7b9d4/61c6d1942ef6453ebe2afed11a317b62 [2021-01-06 23:39:31,501 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-01-06 23:39:31,507 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-01-06 23:39:31,511 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-01-06 23:39:31,511 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-01-06 23:39:31,516 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-01-06 23:39:31,518 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.01 11:39:31" (1/1) ... [2021-01-06 23:39:31,521 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4a85f54c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 11:39:31, skipping insertion in model container [2021-01-06 23:39:31,521 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.01 11:39:31" (1/1) ... [2021-01-06 23:39:31,530 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-01-06 23:39:31,574 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-01-06 23:39:31,819 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe035_tso.opt.i[949,962] left hand side expression in assignment: lhs: VariableLHS[~y~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__unbuffered_p0_EAX~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__unbuffered_cnt~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~x~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__unbuffered_p1_EAX~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__unbuffered_cnt~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~y~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__unbuffered_p2_EAX~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__unbuffered_cnt~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~main$tmp_guard0~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~main$tmp_guard1~0,GLOBAL] [2021-01-06 23:39:32,189 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-01-06 23:39:32,203 INFO L203 MainTranslator]: Completed pre-run [2021-01-06 23:39:32,220 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe035_tso.opt.i[949,962] left hand side expression in assignment: lhs: VariableLHS[~y~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__unbuffered_p0_EAX~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__unbuffered_cnt~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~x~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__unbuffered_p1_EAX~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__unbuffered_cnt~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~y~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__unbuffered_p2_EAX~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__unbuffered_cnt~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~main$tmp_guard0~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~main$tmp_guard1~0,GLOBAL] [2021-01-06 23:39:32,287 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-01-06 23:39:32,476 INFO L208 MainTranslator]: Completed translation [2021-01-06 23:39:32,476 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 11:39:32 WrapperNode [2021-01-06 23:39:32,477 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-01-06 23:39:32,478 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-01-06 23:39:32,478 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-01-06 23:39:32,479 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-01-06 23:39:32,489 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 11:39:32" (1/1) ... [2021-01-06 23:39:32,506 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 11:39:32" (1/1) ... [2021-01-06 23:39:32,529 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-01-06 23:39:32,530 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-01-06 23:39:32,531 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-01-06 23:39:32,531 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-01-06 23:39:32,540 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 11:39:32" (1/1) ... [2021-01-06 23:39:32,541 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 11:39:32" (1/1) ... [2021-01-06 23:39:32,544 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 11:39:32" (1/1) ... [2021-01-06 23:39:32,545 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 11:39:32" (1/1) ... [2021-01-06 23:39:32,551 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 11:39:32" (1/1) ... [2021-01-06 23:39:32,554 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 11:39:32" (1/1) ... [2021-01-06 23:39:32,556 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 11:39:32" (1/1) ... [2021-01-06 23:39:32,565 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-01-06 23:39:32,566 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-01-06 23:39:32,566 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-01-06 23:39:32,566 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-01-06 23:39:32,567 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 11:39:32" (1/1) ... No working directory specified, using /storage/repos/ultimate-bitabs/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 [2021-01-06 23:39:32,682 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-01-06 23:39:32,682 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-01-06 23:39:32,682 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-01-06 23:39:32,682 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-01-06 23:39:32,682 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-01-06 23:39:32,683 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-01-06 23:39:32,683 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-01-06 23:39:32,683 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-01-06 23:39:32,683 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-01-06 23:39:32,683 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-01-06 23:39:32,684 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-01-06 23:39:32,684 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-01-06 23:39:32,684 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-01-06 23:39:32,684 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-01-06 23:39:32,686 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-01-06 23:39:33,243 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-01-06 23:39:33,243 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-01-06 23:39:33,245 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.01 11:39:33 BoogieIcfgContainer [2021-01-06 23:39:33,246 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-01-06 23:39:33,247 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-01-06 23:39:33,248 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-01-06 23:39:33,251 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-01-06 23:39:33,252 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.01 11:39:31" (1/3) ... [2021-01-06 23:39:33,252 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e5cf3cf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.01 11:39:33, skipping insertion in model container [2021-01-06 23:39:33,253 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 11:39:32" (2/3) ... [2021-01-06 23:39:33,253 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e5cf3cf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.01 11:39:33, skipping insertion in model container [2021-01-06 23:39:33,253 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.01 11:39:33" (3/3) ... [2021-01-06 23:39:33,255 INFO L111 eAbstractionObserver]: Analyzing ICFG safe035_tso.opt.i [2021-01-06 23:39:33,262 WARN L142 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-01-06 23:39:33,262 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-01-06 23:39:33,268 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-01-06 23:39:33,269 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-01-06 23:39:33,305 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:39:33,305 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:39:33,305 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:39:33,305 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:39:33,306 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:39:33,306 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:39:33,306 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:39:33,306 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:39:33,307 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:39:33,307 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:39:33,307 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:39:33,307 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:39:33,308 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:39:33,308 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:39:33,308 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:39:33,308 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:39:33,309 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:39:33,309 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:39:33,309 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:39:33,309 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:39:33,310 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:39:33,310 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:39:33,310 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:39:33,310 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:39:33,311 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:39:33,311 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:39:33,311 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:39:33,311 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:39:33,311 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:39:33,312 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:39:33,312 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:39:33,312 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:39:33,312 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:39:33,313 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:39:33,313 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:39:33,313 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:39:33,315 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:39:33,316 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:39:33,316 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:39:33,316 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:39:33,323 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:39:33,323 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:39:33,324 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:39:33,324 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:39:33,326 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:39:33,327 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:39:33,327 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:39:33,327 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:39:33,330 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-01-06 23:39:33,350 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-01-06 23:39:33,373 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-01-06 23:39:33,373 INFO L378 AbstractCegarLoop]: Hoare is true [2021-01-06 23:39:33,374 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-01-06 23:39:33,374 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-01-06 23:39:33,374 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-01-06 23:39:33,374 INFO L382 AbstractCegarLoop]: Difference is false [2021-01-06 23:39:33,374 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-01-06 23:39:33,374 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-01-06 23:39:33,391 INFO L120 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-01-06 23:39:33,394 INFO L135 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 83 places, 75 transitions, 165 flow [2021-01-06 23:39:33,399 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 83 places, 75 transitions, 165 flow [2021-01-06 23:39:33,402 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 83 places, 75 transitions, 165 flow [2021-01-06 23:39:33,448 INFO L129 PetriNetUnfolder]: 2/72 cut-off events. [2021-01-06 23:39:33,448 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-01-06 23:39:33,453 INFO L84 FinitePrefix]: Finished finitePrefix Result has 82 conditions, 72 events. 2/72 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 54 event pairs, 0 based on Foata normal form. 0/69 useless extension candidates. Maximal degree in co-relation 56. Up to 2 conditions per place. [2021-01-06 23:39:33,456 INFO L116 LiptonReduction]: Number of co-enabled transitions 1296 [2021-01-06 23:39:36,636 WARN L197 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 76 [2021-01-06 23:39:36,926 WARN L197 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 76 [2021-01-06 23:39:37,026 INFO L131 LiptonReduction]: Checked pairs total: 2511 [2021-01-06 23:39:37,026 INFO L133 LiptonReduction]: Total number of compositions: 63 [2021-01-06 23:39:37,034 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 32 places, 23 transitions, 61 flow [2021-01-06 23:39:37,067 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 362 states. [2021-01-06 23:39:37,070 INFO L276 IsEmpty]: Start isEmpty. Operand 362 states. [2021-01-06 23:39:37,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-01-06 23:39:37,078 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 23:39:37,079 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 23:39:37,079 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 23:39:37,088 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 23:39:37,089 INFO L82 PathProgramCache]: Analyzing trace with hash -1857977145, now seen corresponding path program 1 times [2021-01-06 23:39:37,101 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 23:39:37,101 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [731538071] [2021-01-06 23:39:37,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 23:39:37,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 23:39:37,299 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 23:39:37,300 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [731538071] [2021-01-06 23:39:37,301 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 23:39:37,302 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-01-06 23:39:37,302 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [553994315] [2021-01-06 23:39:37,308 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2021-01-06 23:39:37,308 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 23:39:37,330 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-01-06 23:39:37,331 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-01-06 23:39:37,333 INFO L87 Difference]: Start difference. First operand 362 states. Second operand 2 states. [2021-01-06 23:39:37,391 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 23:39:37,391 INFO L93 Difference]: Finished difference Result 362 states and 1072 transitions. [2021-01-06 23:39:37,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-01-06 23:39:37,395 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 8 [2021-01-06 23:39:37,396 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 23:39:37,426 INFO L225 Difference]: With dead ends: 362 [2021-01-06 23:39:37,427 INFO L226 Difference]: Without dead ends: 298 [2021-01-06 23:39:37,428 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-01-06 23:39:37,466 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 298 states. [2021-01-06 23:39:37,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 298 to 298. [2021-01-06 23:39:37,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 298 states. [2021-01-06 23:39:37,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 298 states to 298 states and 864 transitions. [2021-01-06 23:39:37,534 INFO L78 Accepts]: Start accepts. Automaton has 298 states and 864 transitions. Word has length 8 [2021-01-06 23:39:37,535 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 23:39:37,535 INFO L481 AbstractCegarLoop]: Abstraction has 298 states and 864 transitions. [2021-01-06 23:39:37,535 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2021-01-06 23:39:37,535 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states and 864 transitions. [2021-01-06 23:39:37,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-01-06 23:39:37,537 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 23:39:37,537 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 23:39:37,537 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-01-06 23:39:37,537 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 23:39:37,538 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 23:39:37,538 INFO L82 PathProgramCache]: Analyzing trace with hash -1762722497, now seen corresponding path program 1 times [2021-01-06 23:39:37,539 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 23:39:37,539 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [941997609] [2021-01-06 23:39:37,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 23:39:37,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 23:39:37,780 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 23:39:37,782 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [941997609] [2021-01-06 23:39:37,783 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 23:39:37,783 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-01-06 23:39:37,783 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2079455055] [2021-01-06 23:39:37,784 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-01-06 23:39:37,785 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 23:39:37,786 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-01-06 23:39:37,787 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-01-06 23:39:37,788 INFO L87 Difference]: Start difference. First operand 298 states and 864 transitions. Second operand 4 states. [2021-01-06 23:39:37,861 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 23:39:37,861 INFO L93 Difference]: Finished difference Result 552 states and 1504 transitions. [2021-01-06 23:39:37,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-01-06 23:39:37,862 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2021-01-06 23:39:37,862 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 23:39:37,866 INFO L225 Difference]: With dead ends: 552 [2021-01-06 23:39:37,866 INFO L226 Difference]: Without dead ends: 382 [2021-01-06 23:39:37,867 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-01-06 23:39:37,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 382 states. [2021-01-06 23:39:37,886 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 382 to 298. [2021-01-06 23:39:37,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 298 states. [2021-01-06 23:39:37,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 298 states to 298 states and 792 transitions. [2021-01-06 23:39:37,888 INFO L78 Accepts]: Start accepts. Automaton has 298 states and 792 transitions. Word has length 9 [2021-01-06 23:39:37,888 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 23:39:37,889 INFO L481 AbstractCegarLoop]: Abstraction has 298 states and 792 transitions. [2021-01-06 23:39:37,889 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-01-06 23:39:37,889 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states and 792 transitions. [2021-01-06 23:39:37,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-01-06 23:39:37,891 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 23:39:37,891 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 23:39:37,891 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-01-06 23:39:37,891 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 23:39:37,892 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 23:39:37,892 INFO L82 PathProgramCache]: Analyzing trace with hash 1189149087, now seen corresponding path program 1 times [2021-01-06 23:39:37,892 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 23:39:37,893 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1243380032] [2021-01-06 23:39:37,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 23:39:37,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 23:39:37,963 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 23:39:37,964 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1243380032] [2021-01-06 23:39:37,964 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 23:39:37,964 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-01-06 23:39:37,965 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1379050394] [2021-01-06 23:39:37,965 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-01-06 23:39:37,965 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 23:39:37,966 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-01-06 23:39:37,966 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-01-06 23:39:37,967 INFO L87 Difference]: Start difference. First operand 298 states and 792 transitions. Second operand 5 states. [2021-01-06 23:39:38,016 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 23:39:38,016 INFO L93 Difference]: Finished difference Result 338 states and 836 transitions. [2021-01-06 23:39:38,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-01-06 23:39:38,017 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 10 [2021-01-06 23:39:38,017 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 23:39:38,019 INFO L225 Difference]: With dead ends: 338 [2021-01-06 23:39:38,019 INFO L226 Difference]: Without dead ends: 222 [2021-01-06 23:39:38,020 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-01-06 23:39:38,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 222 states. [2021-01-06 23:39:38,028 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 222 to 182. [2021-01-06 23:39:38,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 182 states. [2021-01-06 23:39:38,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 468 transitions. [2021-01-06 23:39:38,030 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 468 transitions. Word has length 10 [2021-01-06 23:39:38,030 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 23:39:38,030 INFO L481 AbstractCegarLoop]: Abstraction has 182 states and 468 transitions. [2021-01-06 23:39:38,030 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-01-06 23:39:38,030 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 468 transitions. [2021-01-06 23:39:38,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-01-06 23:39:38,032 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 23:39:38,032 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 23:39:38,033 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-01-06 23:39:38,033 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 23:39:38,033 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 23:39:38,034 INFO L82 PathProgramCache]: Analyzing trace with hash 681758540, now seen corresponding path program 1 times [2021-01-06 23:39:38,034 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 23:39:38,034 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1434261291] [2021-01-06 23:39:38,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 23:39:38,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 23:39:38,119 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 23:39:38,120 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1434261291] [2021-01-06 23:39:38,122 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 23:39:38,122 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-01-06 23:39:38,122 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1933116365] [2021-01-06 23:39:38,123 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-06 23:39:38,123 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 23:39:38,124 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-06 23:39:38,124 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-06 23:39:38,124 INFO L87 Difference]: Start difference. First operand 182 states and 468 transitions. Second operand 3 states. [2021-01-06 23:39:38,138 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 23:39:38,138 INFO L93 Difference]: Finished difference Result 146 states and 331 transitions. [2021-01-06 23:39:38,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-06 23:39:38,139 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 12 [2021-01-06 23:39:38,139 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 23:39:38,140 INFO L225 Difference]: With dead ends: 146 [2021-01-06 23:39:38,140 INFO L226 Difference]: Without dead ends: 146 [2021-01-06 23:39:38,141 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-06 23:39:38,142 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2021-01-06 23:39:38,145 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 146. [2021-01-06 23:39:38,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 146 states. [2021-01-06 23:39:38,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 331 transitions. [2021-01-06 23:39:38,147 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 331 transitions. Word has length 12 [2021-01-06 23:39:38,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 23:39:38,147 INFO L481 AbstractCegarLoop]: Abstraction has 146 states and 331 transitions. [2021-01-06 23:39:38,147 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-01-06 23:39:38,148 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 331 transitions. [2021-01-06 23:39:38,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-01-06 23:39:38,149 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 23:39:38,149 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 23:39:38,149 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-01-06 23:39:38,149 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 23:39:38,150 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 23:39:38,150 INFO L82 PathProgramCache]: Analyzing trace with hash -2034044923, now seen corresponding path program 1 times [2021-01-06 23:39:38,150 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 23:39:38,151 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [546141015] [2021-01-06 23:39:38,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 23:39:38,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 23:39:38,197 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 23:39:38,197 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [546141015] [2021-01-06 23:39:38,198 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 23:39:38,198 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-01-06 23:39:38,198 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1284815213] [2021-01-06 23:39:38,198 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-01-06 23:39:38,199 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 23:39:38,199 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-01-06 23:39:38,199 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-01-06 23:39:38,200 INFO L87 Difference]: Start difference. First operand 146 states and 331 transitions. Second operand 4 states. [2021-01-06 23:39:38,217 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 23:39:38,218 INFO L93 Difference]: Finished difference Result 101 states and 200 transitions. [2021-01-06 23:39:38,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-01-06 23:39:38,219 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2021-01-06 23:39:38,219 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 23:39:38,220 INFO L225 Difference]: With dead ends: 101 [2021-01-06 23:39:38,220 INFO L226 Difference]: Without dead ends: 101 [2021-01-06 23:39:38,220 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-01-06 23:39:38,221 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2021-01-06 23:39:38,223 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 97. [2021-01-06 23:39:38,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 97 states. [2021-01-06 23:39:38,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 190 transitions. [2021-01-06 23:39:38,224 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 190 transitions. Word has length 13 [2021-01-06 23:39:38,224 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 23:39:38,224 INFO L481 AbstractCegarLoop]: Abstraction has 97 states and 190 transitions. [2021-01-06 23:39:38,225 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-01-06 23:39:38,225 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 190 transitions. [2021-01-06 23:39:38,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-01-06 23:39:38,226 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 23:39:38,226 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 23:39:38,226 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-01-06 23:39:38,226 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 23:39:38,227 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 23:39:38,227 INFO L82 PathProgramCache]: Analyzing trace with hash -666358640, now seen corresponding path program 1 times [2021-01-06 23:39:38,227 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 23:39:38,227 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1701149669] [2021-01-06 23:39:38,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 23:39:38,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 23:39:38,308 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 23:39:38,308 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1701149669] [2021-01-06 23:39:38,309 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 23:39:38,309 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-01-06 23:39:38,309 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2044958692] [2021-01-06 23:39:38,310 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-01-06 23:39:38,310 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 23:39:38,311 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-01-06 23:39:38,311 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-01-06 23:39:38,311 INFO L87 Difference]: Start difference. First operand 97 states and 190 transitions. Second operand 5 states. [2021-01-06 23:39:38,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 23:39:38,363 INFO L93 Difference]: Finished difference Result 181 states and 338 transitions. [2021-01-06 23:39:38,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-01-06 23:39:38,363 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 15 [2021-01-06 23:39:38,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 23:39:38,365 INFO L225 Difference]: With dead ends: 181 [2021-01-06 23:39:38,365 INFO L226 Difference]: Without dead ends: 140 [2021-01-06 23:39:38,365 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-01-06 23:39:38,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2021-01-06 23:39:38,368 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 97. [2021-01-06 23:39:38,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 97 states. [2021-01-06 23:39:38,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 186 transitions. [2021-01-06 23:39:38,370 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 186 transitions. Word has length 15 [2021-01-06 23:39:38,370 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 23:39:38,370 INFO L481 AbstractCegarLoop]: Abstraction has 97 states and 186 transitions. [2021-01-06 23:39:38,370 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-01-06 23:39:38,370 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 186 transitions. [2021-01-06 23:39:38,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-01-06 23:39:38,371 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 23:39:38,371 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 23:39:38,372 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-01-06 23:39:38,372 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 23:39:38,372 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 23:39:38,372 INFO L82 PathProgramCache]: Analyzing trace with hash -574188510, now seen corresponding path program 2 times [2021-01-06 23:39:38,373 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 23:39:38,373 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1478870896] [2021-01-06 23:39:38,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 23:39:38,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 23:39:38,418 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 23:39:38,419 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1478870896] [2021-01-06 23:39:38,419 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 23:39:38,419 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-01-06 23:39:38,419 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1074972359] [2021-01-06 23:39:38,420 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-01-06 23:39:38,420 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 23:39:38,421 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-01-06 23:39:38,421 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-01-06 23:39:38,421 INFO L87 Difference]: Start difference. First operand 97 states and 186 transitions. Second operand 5 states. [2021-01-06 23:39:38,443 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 23:39:38,443 INFO L93 Difference]: Finished difference Result 77 states and 147 transitions. [2021-01-06 23:39:38,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-01-06 23:39:38,444 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 15 [2021-01-06 23:39:38,444 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 23:39:38,445 INFO L225 Difference]: With dead ends: 77 [2021-01-06 23:39:38,445 INFO L226 Difference]: Without dead ends: 69 [2021-01-06 23:39:38,445 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-01-06 23:39:38,446 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2021-01-06 23:39:38,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 65. [2021-01-06 23:39:38,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 65 states. [2021-01-06 23:39:38,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 123 transitions. [2021-01-06 23:39:38,448 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 123 transitions. Word has length 15 [2021-01-06 23:39:38,449 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 23:39:38,449 INFO L481 AbstractCegarLoop]: Abstraction has 65 states and 123 transitions. [2021-01-06 23:39:38,449 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-01-06 23:39:38,449 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 123 transitions. [2021-01-06 23:39:38,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-01-06 23:39:38,450 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 23:39:38,450 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 23:39:38,450 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-01-06 23:39:38,450 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 23:39:38,451 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 23:39:38,451 INFO L82 PathProgramCache]: Analyzing trace with hash -681441042, now seen corresponding path program 1 times [2021-01-06 23:39:38,451 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 23:39:38,451 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [635985432] [2021-01-06 23:39:38,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 23:39:38,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 23:39:38,528 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 23:39:38,528 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [635985432] [2021-01-06 23:39:38,528 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 23:39:38,529 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-01-06 23:39:38,529 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [78720204] [2021-01-06 23:39:38,529 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-01-06 23:39:38,530 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 23:39:38,530 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-01-06 23:39:38,530 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-01-06 23:39:38,531 INFO L87 Difference]: Start difference. First operand 65 states and 123 transitions. Second operand 6 states. [2021-01-06 23:39:38,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 23:39:38,594 INFO L93 Difference]: Finished difference Result 129 states and 226 transitions. [2021-01-06 23:39:38,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-01-06 23:39:38,594 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 18 [2021-01-06 23:39:38,595 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 23:39:38,595 INFO L225 Difference]: With dead ends: 129 [2021-01-06 23:39:38,595 INFO L226 Difference]: Without dead ends: 51 [2021-01-06 23:39:38,596 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2021-01-06 23:39:38,596 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2021-01-06 23:39:38,597 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 47. [2021-01-06 23:39:38,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states. [2021-01-06 23:39:38,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 76 transitions. [2021-01-06 23:39:38,598 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 76 transitions. Word has length 18 [2021-01-06 23:39:38,598 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 23:39:38,598 INFO L481 AbstractCegarLoop]: Abstraction has 47 states and 76 transitions. [2021-01-06 23:39:38,599 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2021-01-06 23:39:38,599 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 76 transitions. [2021-01-06 23:39:38,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-01-06 23:39:38,599 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 23:39:38,599 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 23:39:38,600 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-01-06 23:39:38,600 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 23:39:38,600 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 23:39:38,601 INFO L82 PathProgramCache]: Analyzing trace with hash 1665896384, now seen corresponding path program 2 times [2021-01-06 23:39:38,601 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 23:39:38,601 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [265912316] [2021-01-06 23:39:38,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 23:39:38,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 23:39:38,712 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 23:39:38,715 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [265912316] [2021-01-06 23:39:38,715 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 23:39:38,716 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-01-06 23:39:38,717 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [782464746] [2021-01-06 23:39:38,717 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-01-06 23:39:38,717 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 23:39:38,718 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-01-06 23:39:38,718 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-01-06 23:39:38,719 INFO L87 Difference]: Start difference. First operand 47 states and 76 transitions. Second operand 6 states. [2021-01-06 23:39:38,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 23:39:38,766 INFO L93 Difference]: Finished difference Result 61 states and 98 transitions. [2021-01-06 23:39:38,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-01-06 23:39:38,766 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 18 [2021-01-06 23:39:38,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 23:39:38,767 INFO L225 Difference]: With dead ends: 61 [2021-01-06 23:39:38,767 INFO L226 Difference]: Without dead ends: 37 [2021-01-06 23:39:38,768 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-01-06 23:39:38,768 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2021-01-06 23:39:38,769 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2021-01-06 23:39:38,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2021-01-06 23:39:38,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 57 transitions. [2021-01-06 23:39:38,770 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 57 transitions. Word has length 18 [2021-01-06 23:39:38,771 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 23:39:38,771 INFO L481 AbstractCegarLoop]: Abstraction has 37 states and 57 transitions. [2021-01-06 23:39:38,771 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2021-01-06 23:39:38,771 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 57 transitions. [2021-01-06 23:39:38,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-01-06 23:39:38,772 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 23:39:38,772 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 23:39:38,772 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-01-06 23:39:38,772 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 23:39:38,773 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 23:39:38,773 INFO L82 PathProgramCache]: Analyzing trace with hash -1696595058, now seen corresponding path program 3 times [2021-01-06 23:39:38,773 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 23:39:38,773 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [791752117] [2021-01-06 23:39:38,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 23:39:38,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 23:39:38,869 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 23:39:38,869 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [791752117] [2021-01-06 23:39:38,870 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 23:39:38,870 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-01-06 23:39:38,870 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [100030897] [2021-01-06 23:39:38,871 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-01-06 23:39:38,871 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 23:39:38,871 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-01-06 23:39:38,872 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-01-06 23:39:38,872 INFO L87 Difference]: Start difference. First operand 37 states and 57 transitions. Second operand 5 states. [2021-01-06 23:39:38,912 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 23:39:38,912 INFO L93 Difference]: Finished difference Result 36 states and 56 transitions. [2021-01-06 23:39:38,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-01-06 23:39:38,912 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 18 [2021-01-06 23:39:38,913 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 23:39:38,913 INFO L225 Difference]: With dead ends: 36 [2021-01-06 23:39:38,913 INFO L226 Difference]: Without dead ends: 0 [2021-01-06 23:39:38,913 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-01-06 23:39:38,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-01-06 23:39:38,914 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-01-06 23:39:38,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2021-01-06 23:39:38,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-01-06 23:39:38,914 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 18 [2021-01-06 23:39:38,916 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 23:39:38,916 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-01-06 23:39:38,916 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-01-06 23:39:38,917 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-01-06 23:39:38,917 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-01-06 23:39:38,917 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-01-06 23:39:38,921 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.01 11:39:38 BasicIcfg [2021-01-06 23:39:38,921 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-01-06 23:39:38,922 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-01-06 23:39:38,922 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-01-06 23:39:38,922 INFO L275 PluginConnector]: Witness Printer initialized [2021-01-06 23:39:38,922 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.01 11:39:33" (3/4) ... [2021-01-06 23:39:38,927 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-01-06 23:39:38,934 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2021-01-06 23:39:38,934 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2021-01-06 23:39:38,935 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2021-01-06 23:39:38,941 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2021-01-06 23:39:38,942 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-01-06 23:39:38,942 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-01-06 23:39:38,942 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-01-06 23:39:39,004 INFO L141 WitnessManager]: Wrote witness to /storage/repos/svcomp/c/pthread-wmm/safe035_tso.opt.i-witness.graphml [2021-01-06 23:39:39,004 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-01-06 23:39:39,005 INFO L168 Benchmark]: Toolchain (without parser) took 7501.58 ms. Allocated memory was 157.3 MB in the beginning and 234.9 MB in the end (delta: 77.6 MB). Free memory was 131.3 MB in the beginning and 183.7 MB in the end (delta: -52.4 MB). Peak memory consumption was 26.6 MB. Max. memory is 8.0 GB. [2021-01-06 23:39:39,010 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 157.3 MB. Free memory was 131.1 MB in the beginning and 131.0 MB in the end (delta: 77.7 kB). There was no memory consumed. Max. memory is 8.0 GB. [2021-01-06 23:39:39,012 INFO L168 Benchmark]: CACSL2BoogieTranslator took 966.17 ms. Allocated memory is still 157.3 MB. Free memory was 131.2 MB in the beginning and 132.5 MB in the end (delta: -1.3 MB). Peak memory consumption was 28.0 MB. Max. memory is 8.0 GB. [2021-01-06 23:39:39,012 INFO L168 Benchmark]: Boogie Procedure Inliner took 51.52 ms. Allocated memory is still 157.3 MB. Free memory was 132.5 MB in the beginning and 130.4 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-01-06 23:39:39,013 INFO L168 Benchmark]: Boogie Preprocessor took 34.93 ms. Allocated memory is still 157.3 MB. Free memory was 130.4 MB in the beginning and 128.8 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-01-06 23:39:39,016 INFO L168 Benchmark]: RCFGBuilder took 679.72 ms. Allocated memory is still 157.3 MB. Free memory was 128.8 MB in the beginning and 106.8 MB in the end (delta: 22.0 MB). Peak memory consumption was 22.0 MB. Max. memory is 8.0 GB. [2021-01-06 23:39:39,017 INFO L168 Benchmark]: TraceAbstraction took 5673.69 ms. Allocated memory was 157.3 MB in the beginning and 234.9 MB in the end (delta: 77.6 MB). Free memory was 106.3 MB in the beginning and 186.3 MB in the end (delta: -80.1 MB). There was no memory consumed. Max. memory is 8.0 GB. [2021-01-06 23:39:39,017 INFO L168 Benchmark]: Witness Printer took 82.55 ms. Allocated memory is still 234.9 MB. Free memory was 186.3 MB in the beginning and 183.7 MB in the end (delta: 2.6 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. [2021-01-06 23:39:39,022 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 157.3 MB. Free memory was 131.1 MB in the beginning and 131.0 MB in the end (delta: 77.7 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 966.17 ms. Allocated memory is still 157.3 MB. Free memory was 131.2 MB in the beginning and 132.5 MB in the end (delta: -1.3 MB). Peak memory consumption was 28.0 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 51.52 ms. Allocated memory is still 157.3 MB. Free memory was 132.5 MB in the beginning and 130.4 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 34.93 ms. Allocated memory is still 157.3 MB. Free memory was 130.4 MB in the beginning and 128.8 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 679.72 ms. Allocated memory is still 157.3 MB. Free memory was 128.8 MB in the beginning and 106.8 MB in the end (delta: 22.0 MB). Peak memory consumption was 22.0 MB. Max. memory is 8.0 GB. * TraceAbstraction took 5673.69 ms. Allocated memory was 157.3 MB in the beginning and 234.9 MB in the end (delta: 77.6 MB). Free memory was 106.3 MB in the beginning and 186.3 MB in the end (delta: -80.1 MB). There was no memory consumed. Max. memory is 8.0 GB. * Witness Printer took 82.55 ms. Allocated memory is still 234.9 MB. Free memory was 186.3 MB in the beginning and 183.7 MB in the end (delta: 2.6 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 845 VarBasedMoverChecksPositive, 39 VarBasedMoverChecksNegative, 7 SemBasedMoverChecksPositive, 32 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.5s, 68 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 3.6s, 83 PlacesBefore, 32 PlacesAfterwards, 75 TransitionsBefore, 23 TransitionsAfterwards, 1296 CoEnabledTransitionPairs, 5 FixpointIterations, 18 TrivialSequentialCompositions, 37 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 7 ConcurrentYvCompositions, 1 ChoiceCompositions, 63 TotalNumberOfCompositions, 2511 MoverChecksTotal - PositiveResult [Line: 18]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 74 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 5.5s, OverallIterations: 10, TraceHistogramMax: 1, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.6s, HoareTripleCheckerStatistics: 209 SDtfs, 192 SDslu, 317 SDs, 0 SdLazy, 140 SolverSat, 37 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 49 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=362occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 10 MinimizatonAttempts, 179 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 136 NumberOfCodeBlocks, 136 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 126 ConstructedInterpolants, 0 QuantifiedInterpolants, 7590 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 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...