/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/safe033_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-bitabs-178dd20 [2021-01-06 23:39:06,898 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-01-06 23:39:06,901 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-01-06 23:39:06,935 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-01-06 23:39:06,936 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-01-06 23:39:06,937 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-01-06 23:39:06,939 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-01-06 23:39:06,959 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-01-06 23:39:06,962 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-01-06 23:39:06,963 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-01-06 23:39:06,964 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-01-06 23:39:06,966 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-01-06 23:39:06,966 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-01-06 23:39:06,968 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-01-06 23:39:06,969 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-01-06 23:39:06,971 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-01-06 23:39:06,972 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-01-06 23:39:06,973 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-01-06 23:39:06,975 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-01-06 23:39:06,978 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-01-06 23:39:06,980 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-01-06 23:39:06,982 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-01-06 23:39:06,983 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-01-06 23:39:06,984 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-01-06 23:39:06,988 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-01-06 23:39:06,999 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-01-06 23:39:07,000 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-01-06 23:39:07,001 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-01-06 23:39:07,005 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 23:39:07,032 INFO L113 SettingsManager]: Loading preferences was successful [2021-01-06 23:39:07,033 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-01-06 23:39:07,034 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-01-06 23:39:07,035 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-01-06 23:39:07,035 INFO L138 SettingsManager]: * Use SBE=true [2021-01-06 23:39:07,035 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-01-06 23:39:07,036 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-01-06 23:39:07,036 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-01-06 23:39:07,036 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-01-06 23:39:07,036 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-01-06 23:39:07,036 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-01-06 23:39:07,037 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-01-06 23:39:07,037 INFO L138 SettingsManager]: * Use constant arrays=true [2021-01-06 23:39:07,037 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-01-06 23:39:07,037 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-01-06 23:39:07,038 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-01-06 23:39:07,038 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-01-06 23:39:07,038 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-01-06 23:39:07,038 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-01-06 23:39:07,039 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-01-06 23:39:07,039 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-01-06 23:39:07,039 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-01-06 23:39:07,039 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-01-06 23:39:07,040 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-01-06 23:39:07,040 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-01-06 23:39:07,040 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-01-06 23:39:07,537 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-01-06 23:39:07,579 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-01-06 23:39:07,582 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-01-06 23:39:07,584 INFO L271 PluginConnector]: Initializing CDTParser... [2021-01-06 23:39:07,584 INFO L275 PluginConnector]: CDTParser initialized [2021-01-06 23:39:07,585 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-wmm/safe033_tso.opt.i [2021-01-06 23:39:07,682 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/41bf269ef/db5b32298944408a87962a615087ed5b/FLAGa09f94dfa [2021-01-06 23:39:08,415 INFO L306 CDTParser]: Found 1 translation units. [2021-01-06 23:39:08,416 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe033_tso.opt.i [2021-01-06 23:39:08,446 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/41bf269ef/db5b32298944408a87962a615087ed5b/FLAGa09f94dfa [2021-01-06 23:39:08,651 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/41bf269ef/db5b32298944408a87962a615087ed5b [2021-01-06 23:39:08,654 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-01-06 23:39:08,657 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-01-06 23:39:08,659 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-01-06 23:39:08,659 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-01-06 23:39:08,663 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-01-06 23:39:08,664 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.01 11:39:08" (1/1) ... [2021-01-06 23:39:08,665 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3ed479b7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 11:39:08, skipping insertion in model container [2021-01-06 23:39:08,666 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.01 11:39:08" (1/1) ... [2021-01-06 23:39:08,674 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-01-06 23:39:08,717 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-01-06 23:39:08,891 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/safe033_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[~y~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$tmp_guard1~0,GLOBAL] [2021-01-06 23:39:09,159 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-01-06 23:39:09,172 INFO L203 MainTranslator]: Completed pre-run [2021-01-06 23:39:09,189 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe033_tso.opt.i[949,962] left hand side expression in assignment: lhs: VariableLHS[~y~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__unbuffered_p0_EAX~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__unbuffered_cnt~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~x~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~y~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__unbuffered_cnt~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~main$tmp_guard0~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~main$tmp_guard1~0,GLOBAL] [2021-01-06 23:39:09,221 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-01-06 23:39:09,387 INFO L208 MainTranslator]: Completed translation [2021-01-06 23:39:09,388 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 11:39:09 WrapperNode [2021-01-06 23:39:09,388 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-01-06 23:39:09,390 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-01-06 23:39:09,390 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-01-06 23:39:09,390 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-01-06 23:39:09,403 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 11:39:09" (1/1) ... [2021-01-06 23:39:09,446 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 11:39:09" (1/1) ... [2021-01-06 23:39:09,484 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-01-06 23:39:09,488 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-01-06 23:39:09,488 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-01-06 23:39:09,488 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-01-06 23:39:09,500 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 11:39:09" (1/1) ... [2021-01-06 23:39:09,501 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 11:39:09" (1/1) ... [2021-01-06 23:39:09,509 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 11:39:09" (1/1) ... [2021-01-06 23:39:09,510 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 11:39:09" (1/1) ... [2021-01-06 23:39:09,524 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 11:39:09" (1/1) ... [2021-01-06 23:39:09,531 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 11:39:09" (1/1) ... [2021-01-06 23:39:09,533 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 11:39:09" (1/1) ... [2021-01-06 23:39:09,541 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-01-06 23:39:09,542 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-01-06 23:39:09,542 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-01-06 23:39:09,542 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-01-06 23:39:09,547 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 11:39:09" (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 23:39:09,647 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-01-06 23:39:09,648 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-01-06 23:39:09,648 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-01-06 23:39:09,648 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-01-06 23:39:09,648 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-01-06 23:39:09,648 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-01-06 23:39:09,649 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-01-06 23:39:09,649 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-01-06 23:39:09,650 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-01-06 23:39:09,651 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-01-06 23:39:09,651 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-01-06 23:39:09,652 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-01-06 23:39:09,654 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 23:39:10,231 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-01-06 23:39:10,232 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-01-06 23:39:10,234 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.01 11:39:10 BoogieIcfgContainer [2021-01-06 23:39:10,234 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-01-06 23:39:10,236 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-01-06 23:39:10,236 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-01-06 23:39:10,239 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-01-06 23:39:10,239 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.01 11:39:08" (1/3) ... [2021-01-06 23:39:10,240 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@74aef06b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.01 11:39:10, skipping insertion in model container [2021-01-06 23:39:10,241 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 11:39:09" (2/3) ... [2021-01-06 23:39:10,241 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@74aef06b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.01 11:39:10, skipping insertion in model container [2021-01-06 23:39:10,241 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.01 11:39:10" (3/3) ... [2021-01-06 23:39:10,243 INFO L111 eAbstractionObserver]: Analyzing ICFG safe033_tso.opt.i [2021-01-06 23:39:10,250 WARN L142 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-01-06 23:39:10,250 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-01-06 23:39:10,256 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-01-06 23:39:10,257 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-01-06 23:39:10,287 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:39:10,288 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:39:10,288 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:39:10,288 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:39:10,288 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:39:10,289 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:39:10,289 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:39:10,289 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:39:10,290 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:39:10,290 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:39:10,290 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:39:10,290 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:39:10,291 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:39:10,291 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:39:10,291 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:39:10,291 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:39:10,292 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:39:10,292 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:39:10,292 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:39:10,292 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:39:10,293 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:39:10,293 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:39:10,293 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:39:10,294 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:39:10,296 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:39:10,297 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:39:10,297 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:39:10,297 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:39:10,303 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:39:10,303 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:39:10,303 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:39:10,303 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-06 23:39:10,306 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-01-06 23:39:10,326 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-01-06 23:39:10,349 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-01-06 23:39:10,349 INFO L378 AbstractCegarLoop]: Hoare is true [2021-01-06 23:39:10,349 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-01-06 23:39:10,349 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-01-06 23:39:10,350 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-01-06 23:39:10,350 INFO L382 AbstractCegarLoop]: Difference is false [2021-01-06 23:39:10,350 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-01-06 23:39:10,350 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-01-06 23:39:10,363 INFO L120 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-01-06 23:39:10,366 INFO L135 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 65 places, 60 transitions, 130 flow [2021-01-06 23:39:10,370 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 65 places, 60 transitions, 130 flow [2021-01-06 23:39:10,372 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 65 places, 60 transitions, 130 flow [2021-01-06 23:39:10,419 INFO L129 PetriNetUnfolder]: 2/58 cut-off events. [2021-01-06 23:39:10,419 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-01-06 23:39:10,423 INFO L84 FinitePrefix]: Finished finitePrefix Result has 65 conditions, 58 events. 2/58 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 35 event pairs, 0 based on Foata normal form. 0/55 useless extension candidates. Maximal degree in co-relation 42. Up to 2 conditions per place. [2021-01-06 23:39:10,426 INFO L116 LiptonReduction]: Number of co-enabled transitions 696 [2021-01-06 23:39:13,447 WARN L197 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 50 [2021-01-06 23:39:13,728 WARN L197 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 50 [2021-01-06 23:39:14,595 WARN L197 SmtUtils]: Spent 356.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 72 [2021-01-06 23:39:14,775 WARN L197 SmtUtils]: Spent 169.00 ms on a formula simplification that was a NOOP. DAG size: 68 [2021-01-06 23:39:15,140 WARN L197 SmtUtils]: Spent 359.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 72 [2021-01-06 23:39:15,287 WARN L197 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 68 [2021-01-06 23:39:15,808 WARN L197 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 50 [2021-01-06 23:39:15,990 INFO L131 LiptonReduction]: Checked pairs total: 1424 [2021-01-06 23:39:15,990 INFO L133 LiptonReduction]: Total number of compositions: 56 [2021-01-06 23:39:15,997 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 22 places, 15 transitions, 40 flow [2021-01-06 23:39:16,012 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 74 states. [2021-01-06 23:39:16,014 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states. [2021-01-06 23:39:16,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-01-06 23:39:16,020 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 23:39:16,020 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-01-06 23:39:16,021 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 23:39:16,026 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 23:39:16,027 INFO L82 PathProgramCache]: Analyzing trace with hash -1953878630, now seen corresponding path program 1 times [2021-01-06 23:39:16,037 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 23:39:16,037 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1928393761] [2021-01-06 23:39:16,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 23:39:16,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 23:39:16,312 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 23:39:16,314 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1928393761] [2021-01-06 23:39:16,315 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 23:39:16,315 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-01-06 23:39:16,316 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1396584201] [2021-01-06 23:39:16,322 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-06 23:39:16,322 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 23:39:16,342 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-06 23:39:16,343 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-06 23:39:16,346 INFO L87 Difference]: Start difference. First operand 74 states. Second operand 3 states. [2021-01-06 23:39:16,393 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 23:39:16,394 INFO L93 Difference]: Finished difference Result 100 states and 199 transitions. [2021-01-06 23:39:16,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-06 23:39:16,396 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 6 [2021-01-06 23:39:16,396 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 23:39:16,408 INFO L225 Difference]: With dead ends: 100 [2021-01-06 23:39:16,408 INFO L226 Difference]: Without dead ends: 64 [2021-01-06 23:39:16,410 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 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 23:39:16,430 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2021-01-06 23:39:16,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 58. [2021-01-06 23:39:16,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 58 states. [2021-01-06 23:39:16,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 113 transitions. [2021-01-06 23:39:16,455 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 113 transitions. Word has length 6 [2021-01-06 23:39:16,455 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 23:39:16,456 INFO L481 AbstractCegarLoop]: Abstraction has 58 states and 113 transitions. [2021-01-06 23:39:16,456 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-01-06 23:39:16,456 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 113 transitions. [2021-01-06 23:39:16,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-01-06 23:39:16,457 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 23:39:16,457 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-01-06 23:39:16,457 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-01-06 23:39:16,458 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 23:39:16,458 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 23:39:16,458 INFO L82 PathProgramCache]: Analyzing trace with hash -458346217, now seen corresponding path program 1 times [2021-01-06 23:39:16,459 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 23:39:16,459 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1924116578] [2021-01-06 23:39:16,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 23:39:16,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 23:39:16,552 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 23:39:16,552 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1924116578] [2021-01-06 23:39:16,553 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 23:39:16,553 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-01-06 23:39:16,553 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [505544550] [2021-01-06 23:39:16,555 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-01-06 23:39:16,555 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 23:39:16,556 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-01-06 23:39:16,556 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-01-06 23:39:16,557 INFO L87 Difference]: Start difference. First operand 58 states and 113 transitions. Second operand 4 states. [2021-01-06 23:39:16,615 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 23:39:16,615 INFO L93 Difference]: Finished difference Result 60 states and 101 transitions. [2021-01-06 23:39:16,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-01-06 23:39:16,616 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 7 [2021-01-06 23:39:16,617 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 23:39:16,620 INFO L225 Difference]: With dead ends: 60 [2021-01-06 23:39:16,620 INFO L226 Difference]: Without dead ends: 42 [2021-01-06 23:39:16,621 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 23:39:16,623 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2021-01-06 23:39:16,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2021-01-06 23:39:16,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2021-01-06 23:39:16,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 66 transitions. [2021-01-06 23:39:16,641 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 66 transitions. Word has length 7 [2021-01-06 23:39:16,641 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 23:39:16,641 INFO L481 AbstractCegarLoop]: Abstraction has 42 states and 66 transitions. [2021-01-06 23:39:16,641 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-01-06 23:39:16,641 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 66 transitions. [2021-01-06 23:39:16,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-01-06 23:39:16,643 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 23:39:16,643 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 23:39:16,643 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-01-06 23:39:16,644 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 23:39:16,645 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 23:39:16,645 INFO L82 PathProgramCache]: Analyzing trace with hash 820636701, now seen corresponding path program 1 times [2021-01-06 23:39:16,645 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 23:39:16,647 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1646548340] [2021-01-06 23:39:16,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 23:39:16,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 23:39:16,801 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 23:39:16,802 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1646548340] [2021-01-06 23:39:16,802 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 23:39:16,802 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-01-06 23:39:16,803 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [303605053] [2021-01-06 23:39:16,803 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-01-06 23:39:16,803 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 23:39:16,804 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-01-06 23:39:16,805 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-01-06 23:39:16,805 INFO L87 Difference]: Start difference. First operand 42 states and 66 transitions. Second operand 5 states. [2021-01-06 23:39:16,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 23:39:16,877 INFO L93 Difference]: Finished difference Result 38 states and 56 transitions. [2021-01-06 23:39:16,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-01-06 23:39:16,878 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 9 [2021-01-06 23:39:16,878 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 23:39:16,879 INFO L225 Difference]: With dead ends: 38 [2021-01-06 23:39:16,880 INFO L226 Difference]: Without dead ends: 22 [2021-01-06 23:39:16,880 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 23:39:16,881 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2021-01-06 23:39:16,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 20. [2021-01-06 23:39:16,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2021-01-06 23:39:16,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 26 transitions. [2021-01-06 23:39:16,889 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 26 transitions. Word has length 9 [2021-01-06 23:39:16,889 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 23:39:16,889 INFO L481 AbstractCegarLoop]: Abstraction has 20 states and 26 transitions. [2021-01-06 23:39:16,889 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-01-06 23:39:16,890 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 26 transitions. [2021-01-06 23:39:16,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-01-06 23:39:16,890 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 23:39:16,890 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 23:39:16,891 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-01-06 23:39:16,891 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 23:39:16,893 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 23:39:16,894 INFO L82 PathProgramCache]: Analyzing trace with hash -480641921, now seen corresponding path program 1 times [2021-01-06 23:39:16,894 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 23:39:16,895 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [426912756] [2021-01-06 23:39:16,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 23:39:16,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 23:39:17,040 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 23:39:17,042 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [426912756] [2021-01-06 23:39:17,042 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 23:39:17,043 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-01-06 23:39:17,043 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1130376776] [2021-01-06 23:39:17,043 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-01-06 23:39:17,044 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 23:39:17,045 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-01-06 23:39:17,045 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-01-06 23:39:17,045 INFO L87 Difference]: Start difference. First operand 20 states and 26 transitions. Second operand 4 states. [2021-01-06 23:39:17,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 23:39:17,089 INFO L93 Difference]: Finished difference Result 21 states and 28 transitions. [2021-01-06 23:39:17,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-01-06 23:39:17,089 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2021-01-06 23:39:17,090 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 23:39:17,090 INFO L225 Difference]: With dead ends: 21 [2021-01-06 23:39:17,090 INFO L226 Difference]: Without dead ends: 0 [2021-01-06 23:39:17,091 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 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 23:39:17,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-01-06 23:39:17,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-01-06 23:39:17,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2021-01-06 23:39:17,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-01-06 23:39:17,092 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 12 [2021-01-06 23:39:17,092 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 23:39:17,092 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-01-06 23:39:17,093 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-01-06 23:39:17,093 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-01-06 23:39:17,093 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-01-06 23:39:17,093 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-01-06 23:39:17,097 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.01 11:39:17 BasicIcfg [2021-01-06 23:39:17,097 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-01-06 23:39:17,099 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-01-06 23:39:17,099 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-01-06 23:39:17,099 INFO L275 PluginConnector]: Witness Printer initialized [2021-01-06 23:39:17,100 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.01 11:39:10" (3/4) ... [2021-01-06 23:39:17,104 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-01-06 23:39:17,111 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2021-01-06 23:39:17,111 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2021-01-06 23:39:17,116 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2021-01-06 23:39:17,117 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-01-06 23:39:17,117 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-01-06 23:39:17,117 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-01-06 23:39:17,186 INFO L141 WitnessManager]: Wrote witness to /storage/repos/svcomp/c/pthread-wmm/safe033_tso.opt.i-witness.graphml [2021-01-06 23:39:17,186 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-01-06 23:39:17,188 INFO L168 Benchmark]: Toolchain (without parser) took 8530.89 ms. Allocated memory was 151.0 MB in the beginning and 181.4 MB in the end (delta: 30.4 MB). Free memory was 125.7 MB in the beginning and 118.7 MB in the end (delta: 6.9 MB). Peak memory consumption was 37.6 MB. Max. memory is 8.0 GB. [2021-01-06 23:39:17,188 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 151.0 MB. Free memory was 122.2 MB in the beginning and 122.1 MB in the end (delta: 94.5 kB). There was no memory consumed. Max. memory is 8.0 GB. [2021-01-06 23:39:17,191 INFO L168 Benchmark]: CACSL2BoogieTranslator took 729.94 ms. Allocated memory is still 151.0 MB. Free memory was 125.4 MB in the beginning and 126.9 MB in the end (delta: -1.5 MB). Peak memory consumption was 26.9 MB. Max. memory is 8.0 GB. [2021-01-06 23:39:17,193 INFO L168 Benchmark]: Boogie Procedure Inliner took 96.56 ms. Allocated memory is still 151.0 MB. Free memory was 126.9 MB in the beginning and 125.3 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-01-06 23:39:17,194 INFO L168 Benchmark]: Boogie Preprocessor took 53.45 ms. Allocated memory is still 151.0 MB. Free memory was 125.3 MB in the beginning and 123.6 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-01-06 23:39:17,196 INFO L168 Benchmark]: RCFGBuilder took 692.03 ms. Allocated memory is still 151.0 MB. Free memory was 123.6 MB in the beginning and 104.3 MB in the end (delta: 19.3 MB). Peak memory consumption was 18.9 MB. Max. memory is 8.0 GB. [2021-01-06 23:39:17,197 INFO L168 Benchmark]: TraceAbstraction took 6861.90 ms. Allocated memory was 151.0 MB in the beginning and 181.4 MB in the end (delta: 30.4 MB). Free memory was 103.8 MB in the beginning and 121.4 MB in the end (delta: -17.6 MB). Peak memory consumption was 13.9 MB. Max. memory is 8.0 GB. [2021-01-06 23:39:17,203 INFO L168 Benchmark]: Witness Printer took 87.40 ms. Allocated memory is still 181.4 MB. Free memory was 121.4 MB in the beginning and 118.7 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-01-06 23:39:17,209 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 151.0 MB. Free memory was 122.2 MB in the beginning and 122.1 MB in the end (delta: 94.5 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 729.94 ms. Allocated memory is still 151.0 MB. Free memory was 125.4 MB in the beginning and 126.9 MB in the end (delta: -1.5 MB). Peak memory consumption was 26.9 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 96.56 ms. Allocated memory is still 151.0 MB. Free memory was 126.9 MB in the beginning and 125.3 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 53.45 ms. Allocated memory is still 151.0 MB. Free memory was 125.3 MB in the beginning and 123.6 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 692.03 ms. Allocated memory is still 151.0 MB. Free memory was 123.6 MB in the beginning and 104.3 MB in the end (delta: 19.3 MB). Peak memory consumption was 18.9 MB. Max. memory is 8.0 GB. * TraceAbstraction took 6861.90 ms. Allocated memory was 151.0 MB in the beginning and 181.4 MB in the end (delta: 30.4 MB). Free memory was 103.8 MB in the beginning and 121.4 MB in the end (delta: -17.6 MB). Peak memory consumption was 13.9 MB. Max. memory is 8.0 GB. * Witness Printer took 87.40 ms. Allocated memory is still 181.4 MB. Free memory was 121.4 MB in the beginning and 118.7 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 458 VarBasedMoverChecksPositive, 32 VarBasedMoverChecksNegative, 3 SemBasedMoverChecksPositive, 29 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.5s, 39 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 5.6s, 65 PlacesBefore, 22 PlacesAfterwards, 60 TransitionsBefore, 15 TransitionsAfterwards, 696 CoEnabledTransitionPairs, 6 FixpointIterations, 16 TrivialSequentialCompositions, 30 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 8 ConcurrentYvCompositions, 2 ChoiceCompositions, 56 TotalNumberOfCompositions, 1424 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 3 procedures, 59 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 6.7s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 5.6s, HoareTripleCheckerStatistics: 43 SDtfs, 54 SDslu, 34 SDs, 0 SdLazy, 28 SolverSat, 19 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 13 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=74occurred 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: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 8 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 34 NumberOfCodeBlocks, 34 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 30 ConstructedInterpolants, 0 QuantifiedInterpolants, 1082 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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...